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Merge pull request #408 from unidoc-build/prep-rc-v3.11.0
Prepare release UniPDF v3.11.0
This commit is contained in:
Gunnsteinn Hall
GitHub
commit
16b59e59af
File diff suppressed because one or more lines are too long
148
common/common.go
148
common/common.go
@ -10,93 +10,93 @@
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// terms that can be accessed at https://unidoc.io/eula/
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// Package common contains common properties used by the subpackages.
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package common ;import (_d "fmt";_ge "io";_a "os";_c "path/filepath";_g "runtime";_db "time";);
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// Notice does nothing for dummy logger.
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func (DummyLogger )Notice (format string ,args ...interface{}){};
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// LogLevel is the verbosity level for logging.
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type LogLevel int ;
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// IsLogLevel returns true if log level is greater or equal than `level`.
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// Can be used to avoid resource intensive calls to loggers.
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func (_da ConsoleLogger )IsLogLevel (level LogLevel )bool {return _da .LogLevel >=level };
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// IsLogLevel returns true from dummy logger.
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func (DummyLogger )IsLogLevel (level LogLevel )bool {return true };
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// Debug logs debug message.
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func (_aba ConsoleLogger )Debug (format string ,args ...interface{}){if _aba .LogLevel >=LogLevelDebug {_bg :="\u005b\u0044\u0045\u0042\u0055\u0047\u005d\u0020";_aba .output (_a .Stdout ,_bg ,format ,args ...);};};const _fe =2020;func (_dae WriterLogger )logToWriter (_fa _ge .Writer ,_ffa string ,_efg string ,_dd ...interface{}){_fd (_fa ,_ffa ,_efg ,_dd );};
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// Error logs error message.
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func (_gg WriterLogger )Error (format string ,args ...interface{}){if _gg .LogLevel >=LogLevelError {_dca :="\u005b\u0045\u0052\u0052\u004f\u0052\u005d\u0020";_gg .logToWriter (_gg .Output ,_dca ,format ,args ...);};};
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// Warning logs warning message.
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func (_ab ConsoleLogger )Warning (format string ,args ...interface{}){if _ab .LogLevel >=LogLevelWarning {_gd :="\u005b\u0057\u0041\u0052\u004e\u0049\u004e\u0047\u005d\u0020";_ab .output (_a .Stdout ,_gd ,format ,args ...);};};func UtcTimeFormat (t _db .Time )string {return t .Format (_gdaa )+"\u0020\u0055\u0054\u0043"};const _eeb =8;const _gdaa ="\u0032\u0020\u004aan\u0075\u0061\u0072\u0079\u0020\u0032\u0030\u0030\u0036\u0020\u0061\u0074\u0020\u0031\u0035\u003a\u0030\u0034";
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// Notice logs notice message.
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func (_cec WriterLogger )Notice (format string ,args ...interface{}){if _cec .LogLevel >=LogLevelNotice {_de :="\u005bN\u004f\u0054\u0049\u0043\u0045\u005d ";_cec .logToWriter (_cec .Output ,_de ,format ,args ...);};};
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// Notice logs notice message.
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func (_ae ConsoleLogger )Notice (format string ,args ...interface{}){if _ae .LogLevel >=LogLevelNotice {_ee :="\u005bN\u004f\u0054\u0049\u0043\u0045\u005d ";_ae .output (_a .Stdout ,_ee ,format ,args ...);};};
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// Warning does nothing for dummy logger.
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func (DummyLogger )Warning (format string ,args ...interface{}){};
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// Trace logs trace message.
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func (_gda ConsoleLogger )Trace (format string ,args ...interface{}){if _gda .LogLevel >=LogLevelTrace {_af :="\u005b\u0054\u0052\u0041\u0043\u0045\u005d\u0020";_gda .output (_a .Stdout ,_af ,format ,args ...);};};
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// Warning logs warning message.
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func (_efe WriterLogger )Warning (format string ,args ...interface{}){if _efe .LogLevel >=LogLevelWarning {_bb :="\u005b\u0057\u0041\u0052\u004e\u0049\u004e\u0047\u005d\u0020";_efe .logToWriter (_efe .Output ,_bb ,format ,args ...);};};
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// Logger is the interface used for logging in the unipdf package.
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type Logger interface{Error (_gf string ,_f ...interface{});Warning (_b string ,_cf ...interface{});Notice (_ce string ,_bd ...interface{});Info (_df string ,_geg ...interface{});Debug (_gc string ,_ef ...interface{});Trace (_cef string ,_ff ...interface{});IsLogLevel (_dc LogLevel )bool ;};const _gecd =31;
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// Info logs info message.
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func (_bc ConsoleLogger )Info (format string ,args ...interface{}){if _bc .LogLevel >=LogLevelInfo {_aa :="\u005bI\u004e\u0046\u004f\u005d\u0020";_bc .output (_a .Stdout ,_aa ,format ,args ...);};};
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// NewWriterLogger creates new 'writer' logger.
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func NewWriterLogger (logLevel LogLevel ,writer _ge .Writer )*WriterLogger {_fb :=WriterLogger {Output :writer ,LogLevel :logLevel };return &_fb ;};func (_eec ConsoleLogger )output (_ad _ge .Writer ,_dab string ,_fg string ,_aff ...interface{}){_fd (_ad ,_dab ,_fg ,_aff ...);};
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// IsLogLevel returns true if log level is greater or equal than `level`.
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// Can be used to avoid resource intensive calls to loggers.
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func (_ea WriterLogger )IsLogLevel (level LogLevel )bool {return _ea .LogLevel >=level };const (LogLevelTrace LogLevel =5;LogLevelDebug LogLevel =4;LogLevelInfo LogLevel =3;LogLevelNotice LogLevel =2;LogLevelWarning LogLevel =1;LogLevelError LogLevel =0;);const _eg =50;const Version ="\u0033\u002e\u0031\u0030\u002e\u0031";
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// Info does nothing for dummy logger.
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func (DummyLogger )Info (format string ,args ...interface{}){};var Log Logger =DummyLogger {};
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// DummyLogger does nothing.
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type DummyLogger struct{};const _cae =18;
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// Trace logs trace message.
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func (_gec WriterLogger )Trace (format string ,args ...interface{}){if _gec .LogLevel >=LogLevelTrace {_fc :="\u005b\u0054\u0052\u0041\u0043\u0045\u005d\u0020";_gec .logToWriter (_gec .Output ,_fc ,format ,args ...);};};
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// NewConsoleLogger creates new console logger.
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func NewConsoleLogger (logLevel LogLevel )*ConsoleLogger {return &ConsoleLogger {LogLevel :logLevel }};
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// Error logs error message.
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func (_ca ConsoleLogger )Error (format string ,args ...interface{}){if _ca .LogLevel >=LogLevelError {_cg :="\u005b\u0045\u0052\u0052\u004f\u0052\u005d\u0020";_ca .output (_a .Stdout ,_cg ,format ,args ...);};};
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package common ;import (_a "fmt";_aa "io";_dc "os";_d "path/filepath";_f "runtime";_bg "time";);const _bgg ="\u0032\u0020\u004aan\u0075\u0061\u0072\u0079\u0020\u0032\u0030\u0030\u0036\u0020\u0061\u0074\u0020\u0031\u0035\u003a\u0030\u0034";
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// Error does nothing for dummy logger.
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func (DummyLogger )Error (format string ,args ...interface{}){};
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// ConsoleLogger is a logger that writes logs to the 'os.Stdout'
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type ConsoleLogger struct{LogLevel LogLevel ;};func _fd (_ccf _ge .Writer ,_bgb string ,_fag string ,_gcc ...interface{}){_ ,_cd ,_ffd ,_dac :=_g .Caller (3);if !_dac {_cd ="\u003f\u003f\u003f";_ffd =0;}else {_cd =_c .Base (_cd );};_fcc :=_d .Sprintf ("\u0025s\u0020\u0025\u0073\u003a\u0025\u0064 ",_bgb ,_cd ,_ffd )+_fag +"\u000a";_d .Fprintf (_ccf ,_fcc ,_gcc ...);};
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// Info does nothing for dummy logger.
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func (DummyLogger )Info (format string ,args ...interface{}){};
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// Info logs info message.
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func (_bba WriterLogger )Info (format string ,args ...interface{}){if _bba .LogLevel >=LogLevelInfo {_cc :="\u005bI\u004e\u0046\u004f\u005d\u0020";_bba .logToWriter (_bba .Output ,_cc ,format ,args ...);};};
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// Warning logs warning message.
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func (_bfc ConsoleLogger )Warning (format string ,args ...interface{}){if _bfc .LogLevel >=LogLevelWarning {_af :="\u005b\u0057\u0041\u0052\u004e\u0049\u004e\u0047\u005d\u0020";_bfc .output (_dc .Stdout ,_af ,format ,args ...);};};
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// WriterLogger is the logger that writes data to the Output writer
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type WriterLogger struct{LogLevel LogLevel ;Output _ge .Writer ;};var ReleasedAt =_db .Date (_fe ,_eeb ,_gecd ,_cae ,_eg ,0,0,_db .UTC );
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type WriterLogger struct{LogLevel LogLevel ;Output _aa .Writer ;};
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// LogLevel is the verbosity level for logging.
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type LogLevel int ;
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// Debug logs debug message.
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func (_cb ConsoleLogger )Debug (format string ,args ...interface{}){if _cb .LogLevel >=LogLevelDebug {_edg :="\u005b\u0044\u0045\u0042\u0055\u0047\u005d\u0020";_cb .output (_dc .Stdout ,_edg ,format ,args ...);};};
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// IsLogLevel returns true from dummy logger.
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func (DummyLogger )IsLogLevel (level LogLevel )bool {return true };
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// Error logs error message.
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func (_ea ConsoleLogger )Error (format string ,args ...interface{}){if _ea .LogLevel >=LogLevelError {_bb :="\u005b\u0045\u0052\u0052\u004f\u0052\u005d\u0020";_ea .output (_dc .Stdout ,_bb ,format ,args ...);};};const (LogLevelTrace LogLevel =5;LogLevelDebug LogLevel =4;LogLevelInfo LogLevel =3;LogLevelNotice LogLevel =2;LogLevelWarning LogLevel =1;LogLevelError LogLevel =0;);
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// Info logs info message.
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func (_ff ConsoleLogger )Info (format string ,args ...interface{}){if _ff .LogLevel >=LogLevelInfo {_ca :="\u005bI\u004e\u0046\u004f\u005d\u0020";_ff .output (_dc .Stdout ,_ca ,format ,args ...);};};const _gecb =18;
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// Trace logs trace message.
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func (_gf ConsoleLogger )Trace (format string ,args ...interface{}){if _gf .LogLevel >=LogLevelTrace {_dcc :="\u005b\u0054\u0052\u0041\u0043\u0045\u005d\u0020";_gf .output (_dc .Stdout ,_dcc ,format ,args ...);};};
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// Warning does nothing for dummy logger.
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func (DummyLogger )Warning (format string ,args ...interface{}){};
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// IsLogLevel returns true if log level is greater or equal than `level`.
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// Can be used to avoid resource intensive calls to loggers.
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func (_afa WriterLogger )IsLogLevel (level LogLevel )bool {return _afa .LogLevel >=level };
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// Trace does nothing for dummy logger.
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func (DummyLogger )Trace (format string ,args ...interface{}){};
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// Notice logs notice message.
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func (_ed ConsoleLogger )Notice (format string ,args ...interface{}){if _ed .LogLevel >=LogLevelNotice {_fg :="\u005bN\u004f\u0054\u0049\u0043\u0045\u005d ";_ed .output (_dc .Stdout ,_fg ,format ,args ...);};};
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// Debug logs debug message.
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func (_bfca WriterLogger )Debug (format string ,args ...interface{}){if _bfca .LogLevel >=LogLevelDebug {_de :="\u005b\u0044\u0045\u0042\u0055\u0047\u005d\u0020";_bfca .logToWriter (_bfca .Output ,_de ,format ,args ...);};};
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// NewConsoleLogger creates new console logger.
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func NewConsoleLogger (logLevel LogLevel )*ConsoleLogger {return &ConsoleLogger {LogLevel :logLevel }};const _cbee =9;
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// Notice logs notice message.
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func (_ac WriterLogger )Notice (format string ,args ...interface{}){if _ac .LogLevel >=LogLevelNotice {_dgf :="\u005bN\u004f\u0054\u0049\u0043\u0045\u005d ";_ac .logToWriter (_ac .Output ,_dgf ,format ,args ...);};};func (_cc ConsoleLogger )output (_dg _aa .Writer ,_fa string ,_gde string ,_agge ...interface{}){_fad (_dg ,_fa ,_gde ,_agge ...);};
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// Trace logs trace message.
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func (_ee WriterLogger )Trace (format string ,args ...interface{}){if _ee .LogLevel >=LogLevelTrace {_ggc :="\u005b\u0054\u0052\u0041\u0043\u0045\u005d\u0020";_ee .logToWriter (_ee .Output ,_ggc ,format ,args ...);};};
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// Warning logs warning message.
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func (_cg WriterLogger )Warning (format string ,args ...interface{}){if _cg .LogLevel >=LogLevelWarning {_ge :="\u005b\u0057\u0041\u0052\u004e\u0049\u004e\u0047\u005d\u0020";_cg .logToWriter (_cg .Output ,_ge ,format ,args ...);};};
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// Logger is the interface used for logging in the unipdf package.
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type Logger interface{Error (_ba string ,_e ...interface{});Warning (_ag string ,_g ...interface{});Notice (_c string ,_cd ...interface{});Info (_agg string ,_gd ...interface{});Debug (_bc string ,_gdd ...interface{});Trace (_dcf string ,_bf ...interface{});IsLogLevel (_bfd LogLevel )bool ;};
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// Error logs error message.
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func (_ead WriterLogger )Error (format string ,args ...interface{}){if _ead .LogLevel >=LogLevelError {_be :="\u005b\u0045\u0052\u0052\u004f\u0052\u005d\u0020";_ead .logToWriter (_ead .Output ,_be ,format ,args ...);};};
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// Notice does nothing for dummy logger.
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func (DummyLogger )Notice (format string ,args ...interface{}){};
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// Debug does nothing for dummy logger.
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func (DummyLogger )Debug (format string ,args ...interface{}){};
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func (DummyLogger )Debug (format string ,args ...interface{}){};var Log Logger =DummyLogger {};const _gec =2020;const _gda =6;func (_da WriterLogger )logToWriter (_eb _aa .Writer ,_db string ,_bgd string ,_dae ...interface{}){_fad (_eb ,_db ,_bgd ,_dae );};
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// IsLogLevel returns true if log level is greater or equal than `level`.
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// Can be used to avoid resource intensive calls to loggers.
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func (_gg ConsoleLogger )IsLogLevel (level LogLevel )bool {return _gg .LogLevel >=level };func UtcTimeFormat (t _bg .Time )string {return t .Format (_bgg )+"\u0020\u0055\u0054\u0043"};var ReleasedAt =_bg .Date (_gec ,_cbee ,_gda ,_gecb ,_eg ,0,0,_bg .UTC );
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// NewWriterLogger creates new 'writer' logger.
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func NewWriterLogger (logLevel LogLevel ,writer _aa .Writer )*WriterLogger {_ga :=WriterLogger {Output :writer ,LogLevel :logLevel };return &_ga ;};const Version ="\u0033\u002e\u0031\u0031\u002e\u0030";const _eg =50;
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// ConsoleLogger is a logger that writes logs to the 'os.Stdout'
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type ConsoleLogger struct{LogLevel LogLevel ;};
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// DummyLogger does nothing.
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type DummyLogger struct{};func _fad (_ace _aa .Writer ,_edb string ,_cga string ,_fd ...interface{}){_ ,_cae ,_ec ,_dbc :=_f .Caller (3);if !_dbc {_cae ="\u003f\u003f\u003f";_ec =0;}else {_cae =_d .Base (_cae );};_fge :=_a .Sprintf ("\u0025s\u0020\u0025\u0073\u003a\u0025\u0064 ",_edb ,_cae ,_ec )+_cga +"\u000a";_a .Fprintf (_ace ,_fge ,_fd ...);};
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// SetLogger sets 'logger' to be used by the unidoc unipdf library.
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func SetLogger (logger Logger ){Log =logger };
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// Debug logs debug message.
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func (_ba WriterLogger )Debug (format string ,args ...interface{}){if _ba .LogLevel >=LogLevelDebug {_aea :="\u005b\u0044\u0045\u0042\u0055\u0047\u005d\u0020";_ba .logToWriter (_ba .Output ,_aea ,format ,args ...);};};
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// Info logs info message.
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func (_cba WriterLogger )Info (format string ,args ...interface{}){if _cba .LogLevel >=LogLevelInfo {_cbe :="\u005bI\u004e\u0046\u004f\u005d\u0020";_cba .logToWriter (_cba .Output ,_cbe ,format ,args ...);};};
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File diff suppressed because one or more lines are too long
File diff suppressed because one or more lines are too long
@ -14,170 +14,204 @@
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// page content streams and XObject forms and thus also in annotation appearance streams.
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//
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// Also defines utility functions for drawing common shapes such as rectangles, lines and circles (ovals).
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package draw ;import (_a "fmt";_f "github.com/unidoc/unipdf/v3/contentstream";_db "github.com/unidoc/unipdf/v3/core";_ac "github.com/unidoc/unipdf/v3/internal/transform";_g "github.com/unidoc/unipdf/v3/model";_dc "math";);
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// Rotate returns a new Point at `p` rotated by `theta` degrees.
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func (_gb Point )Rotate (theta float64 )Point {_ff :=_ac .NewPoint (_gb .X ,_gb .Y ).Rotate (theta );return NewPoint (_ff .X ,_ff .Y );};
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// FlipX flips the sign of the Dx component of the vector.
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func (_cb Vector )FlipX ()Vector {_cb .Dx =-_cb .Dx ;return _cb };
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// GetPointNumber returns the path point at the index specified by number.
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// The index is 1-based.
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func (_bba Path )GetPointNumber (number int )Point {if number < 1||number > len (_bba .Points ){return Point {};};return _bba .Points [number -1];};
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// Draw draws the line to PDF contentstream. Generates the content stream which can be used in page contents or
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// appearance stream of annotation. Returns the stream content, XForm bounding box (local), bounding box and an error
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// if one occurred.
|
||||
func (_fdc Line )Draw (gsName string )([]byte ,*_g .PdfRectangle ,error ){_aca ,_bc :=_fdc .X1 ,_fdc .X2 ;_acdd ,_cfd :=_fdc .Y1 ,_fdc .Y2 ;_feg :=_cfd -_acdd ;_bg :=_bc -_aca ;_gca :=_dc .Atan2 (_feg ,_bg );L :=_dc .Sqrt (_dc .Pow (_bg ,2.0)+_dc .Pow (_feg ,2.0));_cfb :=_fdc .LineWidth ;_fef :=_dc .Pi ;_fdd :=1.0;if _bg < 0{_fdd *=-1.0;};if _feg < 0{_fdd *=-1.0;};VsX :=_fdd *(-_cfb /2*_dc .Cos (_gca +_fef /2));VsY :=_fdd *(-_cfb /2*_dc .Sin (_gca +_fef /2)+_cfb *_dc .Sin (_gca +_fef /2));V1X :=VsX +_cfb /2*_dc .Cos (_gca +_fef /2);V1Y :=VsY +_cfb /2*_dc .Sin (_gca +_fef /2);V2X :=VsX +_cfb /2*_dc .Cos (_gca +_fef /2)+L *_dc .Cos (_gca );V2Y :=VsY +_cfb /2*_dc .Sin (_gca +_fef /2)+L *_dc .Sin (_gca );V3X :=VsX +_cfb /2*_dc .Cos (_gca +_fef /2)+L *_dc .Cos (_gca )+_cfb *_dc .Cos (_gca -_fef /2);V3Y :=VsY +_cfb /2*_dc .Sin (_gca +_fef /2)+L *_dc .Sin (_gca )+_cfb *_dc .Sin (_gca -_fef /2);V4X :=VsX +_cfb /2*_dc .Cos (_gca -_fef /2);V4Y :=VsY +_cfb /2*_dc .Sin (_gca -_fef /2);_fbe :=NewPath ();_fbe =_fbe .AppendPoint (NewPoint (V1X ,V1Y ));_fbe =_fbe .AppendPoint (NewPoint (V2X ,V2Y ));_fbe =_fbe .AppendPoint (NewPoint (V3X ,V3Y ));_fbe =_fbe .AppendPoint (NewPoint (V4X ,V4Y ));_gea :=_fdc .LineEndingStyle1 ;_bf :=_fdc .LineEndingStyle2 ;_dda :=3*_cfb ;_ecf :=3*_cfb ;_gfg :=(_ecf -_cfb )/2;if _bf ==LineEndingStyleArrow {_eaee :=_fbe .GetPointNumber (2);_dg :=NewVectorPolar (_dda ,_gca +_fef );_egd :=_eaee .AddVector (_dg );_fdg :=NewVectorPolar (_ecf /2,_gca +_fef /2);_gcb :=NewVectorPolar (_dda ,_gca );_gcf :=NewVectorPolar (_gfg ,_gca +_fef /2);_dcb :=_egd .AddVector (_gcf );_dbd :=_gcb .Add (_fdg .Flip ());_ebd :=_dcb .AddVector (_dbd );_bbaa :=_fdg .Scale (2).Flip ().Add (_dbd .Flip ());_agg :=_ebd .AddVector (_bbaa );_ceg :=_egd .AddVector (NewVectorPolar (_cfb ,_gca -_fef /2));_aae :=NewPath ();_aae =_aae .AppendPoint (_fbe .GetPointNumber (1));_aae =_aae .AppendPoint (_egd );_aae =_aae .AppendPoint (_dcb );_aae =_aae .AppendPoint (_ebd );_aae =_aae .AppendPoint (_agg );_aae =_aae .AppendPoint (_ceg );_aae =_aae .AppendPoint (_fbe .GetPointNumber (4));_fbe =_aae ;};if _gea ==LineEndingStyleArrow {_bda :=_fbe .GetPointNumber (1);_gd :=_fbe .GetPointNumber (_fbe .Length ());_bff :=NewVectorPolar (_cfb /2,_gca +_fef +_fef /2);_cd :=_bda .AddVector (_bff );_gee :=NewVectorPolar (_dda ,_gca ).Add (NewVectorPolar (_ecf /2,_gca +_fef /2));_acad :=_cd .AddVector (_gee );_cfe :=NewVectorPolar (_gfg ,_gca -_fef /2);_ggf :=_acad .AddVector (_cfe );_ebda :=NewVectorPolar (_dda ,_gca );_dbb :=_gd .AddVector (_ebda );_fdgd :=NewVectorPolar (_gfg ,_gca +_fef +_fef /2);_aec :=_dbb .AddVector (_fdgd );_ee :=_cd ;_ffb :=NewPath ();_ffb =_ffb .AppendPoint (_cd );_ffb =_ffb .AppendPoint (_acad );_ffb =_ffb .AppendPoint (_ggf );for _ ,_gbe :=range _fbe .Points [1:len (_fbe .Points )-1]{_ffb =_ffb .AppendPoint (_gbe );};_ffb =_ffb .AppendPoint (_dbb );_ffb =_ffb .AppendPoint (_aec );_ffb =_ffb .AppendPoint (_ee );_fbe =_ffb ;};_add :=_f .NewContentCreator ();_add .Add_q ().Add_rg (_fdc .LineColor .R (),_fdc .LineColor .G (),_fdc .LineColor .B ());if len (gsName )> 1{_add .Add_gs (_db .PdfObjectName (gsName ));};_fbe =_fbe .Offset (_fdc .X1 ,_fdc .Y1 );_gba :=_fbe .GetBoundingBox ();DrawPathWithCreator (_fbe ,_add );if _fdc .LineStyle ==LineStyleDashed {_add .Add_d ([]int64 {1,1},0).Add_S ().Add_f ().Add_Q ();}else {_add .Add_f ().Add_Q ();};_fbg :=&_g .PdfRectangle {};_fbg .Llx =_gba .X ;_fbg .Lly =_gba .Y ;_fbg .Urx =_gba .X +_gba .Width ;_fbg .Ury =_gba .Y +_gba .Height ;return _add .Bytes (),_fbg ,nil ;};
|
||||
|
||||
// NewPoint returns a new point with the coordinates x, y.
|
||||
func NewPoint (x ,y float64 )Point {return Point {X :x ,Y :y }};
|
||||
|
||||
// Copy returns a clone of the Bezier path.
|
||||
func (_ea CubicBezierPath )Copy ()CubicBezierPath {_cg :=CubicBezierPath {};_cg .Curves =[]CubicBezierCurve {};for _ ,_dbe :=range _ea .Curves {_cg .Curves =append (_cg .Curves ,_dbe );};return _cg ;};
|
||||
|
||||
// Draw draws the circle. Can specify a graphics state (gsName) for setting opacity etc. Otherwise leave empty ("").
|
||||
// Returns the content stream as a byte array, the bounding box and an error on failure.
|
||||
func (_ebg Circle )Draw (gsName string )([]byte ,*_g .PdfRectangle ,error ){_gc :=_ebg .Width /2;_be :=_ebg .Height /2;if _ebg .BorderEnabled {_gc -=_ebg .BorderWidth /2;_be -=_ebg .BorderWidth /2;};_geg :=0.551784;_fbf :=_gc *_geg ;_gbc :=_be *_geg ;_eda :=NewCubicBezierPath ();_eda =_eda .AppendCurve (NewCubicBezierCurve (-_gc ,0,-_gc ,_gbc ,-_fbf ,_be ,0,_be ));_eda =_eda .AppendCurve (NewCubicBezierCurve (0,_be ,_fbf ,_be ,_gc ,_gbc ,_gc ,0));_eda =_eda .AppendCurve (NewCubicBezierCurve (_gc ,0,_gc ,-_gbc ,_fbf ,-_be ,0,-_be ));_eda =_eda .AppendCurve (NewCubicBezierCurve (0,-_be ,-_fbf ,-_be ,-_gc ,-_gbc ,-_gc ,0));_eda =_eda .Offset (_gc ,_be );if _ebg .BorderEnabled {_eda =_eda .Offset (_ebg .BorderWidth /2,_ebg .BorderWidth /2);};if _ebg .X !=0||_ebg .Y !=0{_eda =_eda .Offset (_ebg .X ,_ebg .Y );};_dcf :=_f .NewContentCreator ();_dcf .Add_q ();if _ebg .FillEnabled {_dcf .Add_rg (_ebg .FillColor .R (),_ebg .FillColor .G (),_ebg .FillColor .B ());};if _ebg .BorderEnabled {_dcf .Add_RG (_ebg .BorderColor .R (),_ebg .BorderColor .G (),_ebg .BorderColor .B ());_dcf .Add_w (_ebg .BorderWidth );};if len (gsName )> 1{_dcf .Add_gs (_db .PdfObjectName (gsName ));};DrawBezierPathWithCreator (_eda ,_dcf );_dcf .Add_h ();if _ebg .FillEnabled &&_ebg .BorderEnabled {_dcf .Add_B ();}else if _ebg .FillEnabled {_dcf .Add_f ();}else if _ebg .BorderEnabled {_dcf .Add_S ();};_dcf .Add_Q ();_aad :=_eda .GetBoundingBox ();if _ebg .BorderEnabled {_aad .Height +=_ebg .BorderWidth ;_aad .Width +=_ebg .BorderWidth ;_aad .X -=_ebg .BorderWidth /2;_aad .Y -=_ebg .BorderWidth /2;};_ec :=&_g .PdfRectangle {};_ec .Llx =_aad .X ;_ec .Lly =_aad .Y ;_ec .Urx =_aad .X +_aad .Width ;_ec .Ury =_aad .Y +_aad .Height ;return _dcf .Bytes (),_ec ,nil ;};
|
||||
|
||||
// NewVector returns a new vector with the direction specified by dx and dy.
|
||||
func NewVector (dx ,dy float64 )Vector {_cdg :=Vector {};_cdg .Dx =dx ;_cdg .Dy =dy ;return _cdg };
|
||||
|
||||
// Point represents a two-dimensional point.
|
||||
type Point struct{X float64 ;Y float64 ;};
|
||||
|
||||
// Magnitude returns the magnitude of the vector.
|
||||
func (_cbed Vector )Magnitude ()float64 {return _dc .Sqrt (_dc .Pow (_cbed .Dx ,2.0)+_dc .Pow (_cbed .Dy ,2.0));};
|
||||
|
||||
// AppendPoint adds the specified point to the path.
|
||||
func (_df Path )AppendPoint (point Point )Path {_df .Points =append (_df .Points ,point );return _df };func (_bde Point )String ()string {return _a .Sprintf ("(\u0025\u002e\u0031\u0066\u002c\u0025\u002e\u0031\u0066\u0029",_bde .X ,_bde .Y );};
|
||||
|
||||
// NewPath returns a new empty path.
|
||||
func NewPath ()Path {return Path {}};
|
||||
|
||||
// BasicLine defines a line between point 1 (X1,Y1) and point 2 (X2,Y2). The line has a specified width, color and opacity.
|
||||
type BasicLine struct{X1 float64 ;Y1 float64 ;X2 float64 ;Y2 float64 ;LineColor *_g .PdfColorDeviceRGB ;Opacity float64 ;LineWidth float64 ;LineStyle LineStyle ;};
|
||||
|
||||
// GetBoundingBox returns the bounding box of the path.
|
||||
func (_gge Path )GetBoundingBox ()BoundingBox {_gf :=BoundingBox {};_fbc :=0.0;_fcc :=0.0;_ggd :=0.0;_bdf :=0.0;for _edg ,_adg :=range _gge .Points {if _edg ==0{_fbc =_adg .X ;_fcc =_adg .X ;_ggd =_adg .Y ;_bdf =_adg .Y ;continue ;};if _adg .X < _fbc {_fbc =_adg .X ;};if _adg .X > _fcc {_fcc =_adg .X ;};if _adg .Y < _ggd {_ggd =_adg .Y ;};if _adg .Y > _bdf {_bdf =_adg .Y ;};};_gf .X =_fbc ;_gf .Y =_ggd ;_gf .Width =_fcc -_fbc ;_gf .Height =_bdf -_ggd ;return _gf ;};
|
||||
|
||||
// Rotate rotates the vector by the specified angle.
|
||||
func (_ccca Vector )Rotate (phi float64 )Vector {_dea :=_ccca .Magnitude ();_ebgc :=_ccca .GetPolarAngle ();return NewVectorPolar (_dea ,_ebgc +phi );};
|
||||
|
||||
// Copy returns a clone of the path.
|
||||
func (_fd Path )Copy ()Path {_cfg :=Path {};_cfg .Points =[]Point {};for _ ,_fg :=range _fd .Points {_cfg .Points =append (_cfg .Points ,_fg );};return _cfg ;};
|
||||
|
||||
// NewVectorPolar returns a new vector calculated from the specified
|
||||
// magnitude and angle.
|
||||
func NewVectorPolar (length float64 ,theta float64 )Vector {_edf :=Vector {};_edf .Dx =length *_dc .Cos (theta );_edf .Dy =length *_dc .Sin (theta );return _edf ;};
|
||||
|
||||
// NewVectorBetween returns a new vector with the direction specified by
|
||||
// the subtraction of point a from point b (b-a).
|
||||
func NewVectorBetween (a Point ,b Point )Vector {_cge :=Vector {};_cge .Dx =b .X -a .X ;_cge .Dy =b .Y -a .Y ;return _cge ;};
|
||||
|
||||
// AddOffsetXY adds X,Y offset to all points on a curve.
|
||||
func (_acg CubicBezierCurve )AddOffsetXY (offX ,offY float64 )CubicBezierCurve {_acg .P0 .X +=offX ;_acg .P1 .X +=offX ;_acg .P2 .X +=offX ;_acg .P3 .X +=offX ;_acg .P0 .Y +=offY ;_acg .P1 .Y +=offY ;_acg .P2 .Y +=offY ;_acg .P3 .Y +=offY ;return _acg ;};
|
||||
package draw ;import (_f "fmt";_b "github.com/unidoc/unipdf/v3/contentstream";_e "github.com/unidoc/unipdf/v3/core";_ee "github.com/unidoc/unipdf/v3/internal/transform";_fe "github.com/unidoc/unipdf/v3/model";_g "math";);
|
||||
|
||||
// FlipY flips the sign of the Dy component of the vector.
|
||||
func (_afe Vector )FlipY ()Vector {_afe .Dy =-_afe .Dy ;return _afe };
|
||||
|
||||
// Rectangle is a shape with a specified Width and Height and a lower left corner at (X,Y) that can be
|
||||
// drawn to a PDF content stream. The rectangle can optionally have a border and a filling color.
|
||||
// The Width/Height includes the border (if any specified), i.e. is positioned inside.
|
||||
type Rectangle struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;FillEnabled bool ;FillColor *_g .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_g .PdfColorDeviceRGB ;Opacity float64 ;};
|
||||
|
||||
// DrawBezierPathWithCreator makes the bezier path with the content creator.
|
||||
// Adds the PDF commands to draw the path to the creator instance.
|
||||
func DrawBezierPathWithCreator (bpath CubicBezierPath ,creator *_f .ContentCreator ){for _egf ,_ga :=range bpath .Curves {if _egf ==0{creator .Add_m (_ga .P0 .X ,_ga .P0 .Y );};creator .Add_c (_ga .P1 .X ,_ga .P1 .Y ,_ga .P2 .X ,_ga .P2 .Y ,_ga .P3 .X ,_ga .P3 .Y );};};
|
||||
|
||||
// GetBounds returns the bounding box of the Bezier curve.
|
||||
func (_c CubicBezierCurve )GetBounds ()_g .PdfRectangle {_e :=_c .P0 .X ;_fb :=_c .P0 .X ;_cc :=_c .P0 .Y ;_b :=_c .P0 .Y ;for _ag :=0.0;_ag <=1.0;_ag +=0.001{Rx :=_c .P0 .X *_dc .Pow (1-_ag ,3)+_c .P1 .X *3*_ag *_dc .Pow (1-_ag ,2)+_c .P2 .X *3*_dc .Pow (_ag ,2)*(1-_ag )+_c .P3 .X *_dc .Pow (_ag ,3);Ry :=_c .P0 .Y *_dc .Pow (1-_ag ,3)+_c .P1 .Y *3*_ag *_dc .Pow (1-_ag ,2)+_c .P2 .Y *3*_dc .Pow (_ag ,2)*(1-_ag )+_c .P3 .Y *_dc .Pow (_ag ,3);if Rx < _e {_e =Rx ;};if Rx > _fb {_fb =Rx ;};if Ry < _cc {_cc =Ry ;};if Ry > _b {_b =Ry ;};};_fa :=_g .PdfRectangle {};_fa .Llx =_e ;_fa .Lly =_cc ;_fa .Urx =_fb ;_fa .Ury =_b ;return _fa ;};
|
||||
|
||||
// NewCubicBezierCurve returns a new cubic Bezier curve.
|
||||
func NewCubicBezierCurve (x0 ,y0 ,x1 ,y1 ,x2 ,y2 ,x3 ,y3 float64 )CubicBezierCurve {_gg :=CubicBezierCurve {};_gg .P0 =NewPoint (x0 ,y0 );_gg .P1 =NewPoint (x1 ,y1 );_gg .P2 =NewPoint (x2 ,y2 );_gg .P3 =NewPoint (x3 ,y3 );return _gg ;};
|
||||
|
||||
// Length returns the number of points in the path.
|
||||
func (_fc Path )Length ()int {return len (_fc .Points )};
|
||||
|
||||
// Draw draws the rectangle. Can specify a graphics state (gsName) for setting opacity etc.
|
||||
// Otherwise leave empty (""). Returns the content stream as a byte array, bounding box and an error on failure.
|
||||
func (_eae Rectangle )Draw (gsName string )([]byte ,*_g .PdfRectangle ,error ){_ce :=NewPath ();_ce =_ce .AppendPoint (NewPoint (0,0));_ce =_ce .AppendPoint (NewPoint (0,_eae .Height ));_ce =_ce .AppendPoint (NewPoint (_eae .Width ,_eae .Height ));_ce =_ce .AppendPoint (NewPoint (_eae .Width ,0));_ce =_ce .AppendPoint (NewPoint (0,0));if _eae .X !=0||_eae .Y !=0{_ce =_ce .Offset (_eae .X ,_eae .Y );};_dd :=_f .NewContentCreator ();_dd .Add_q ();if _eae .FillEnabled {_dd .Add_rg (_eae .FillColor .R (),_eae .FillColor .G (),_eae .FillColor .B ());};if _eae .BorderEnabled {_dd .Add_RG (_eae .BorderColor .R (),_eae .BorderColor .G (),_eae .BorderColor .B ());_dd .Add_w (_eae .BorderWidth );};if len (gsName )> 1{_dd .Add_gs (_db .PdfObjectName (gsName ));};DrawPathWithCreator (_ce ,_dd );_dd .Add_h ();if _eae .FillEnabled &&_eae .BorderEnabled {_dd .Add_B ();}else if _eae .FillEnabled {_dd .Add_f ();}else if _eae .BorderEnabled {_dd .Add_S ();};_dd .Add_Q ();_gfa :=_ce .GetBoundingBox ();_cgd :=&_g .PdfRectangle {};_cgd .Llx =_gfa .X ;_cgd .Lly =_gfa .Y ;_cgd .Urx =_gfa .X +_gfa .Width ;_cgd .Ury =_gfa .Y +_gfa .Height ;return _dd .Bytes (),_cgd ,nil ;};
|
||||
|
||||
// LineEndingStyle defines the line ending style for lines.
|
||||
// The currently supported line ending styles are None, Arrow (ClosedArrow) and Butt.
|
||||
type LineEndingStyle int ;const (LineEndingStyleNone LineEndingStyle =0;LineEndingStyleArrow LineEndingStyle =1;LineEndingStyleButt LineEndingStyle =2;);
|
||||
|
||||
// NewCubicBezierPath returns a new empty cubic Bezier path.
|
||||
func NewCubicBezierPath ()CubicBezierPath {_de :=CubicBezierPath {};_de .Curves =[]CubicBezierCurve {};return _de ;};
|
||||
|
||||
// Line defines a line shape between point 1 (X1,Y1) and point 2 (X2,Y2). The line ending styles can be none (regular line),
|
||||
// or arrows at either end. The line also has a specified width, color and opacity.
|
||||
type Line struct{X1 float64 ;Y1 float64 ;X2 float64 ;Y2 float64 ;LineColor *_g .PdfColorDeviceRGB ;Opacity float64 ;LineWidth float64 ;LineEndingStyle1 LineEndingStyle ;LineEndingStyle2 LineEndingStyle ;LineStyle LineStyle ;};
|
||||
|
||||
// Offset shifts the path with the specified offsets.
|
||||
func (_ae Path )Offset (offX ,offY float64 )Path {for _ed ,_fe :=range _ae .Points {_ae .Points [_ed ]=_fe .Add (offX ,offY );};return _ae ;};
|
||||
|
||||
// CubicBezierPath represents a collection of cubic Bezier curves.
|
||||
type CubicBezierPath struct{Curves []CubicBezierCurve ;};
|
||||
|
||||
// Flip changes the sign of the vector: -vector.
|
||||
func (_bag Vector )Flip ()Vector {_aeg :=_bag .Magnitude ();_bga :=_bag .GetPolarAngle ();_bag .Dx =_aeg *_dc .Cos (_bga +_dc .Pi );_bag .Dy =_aeg *_dc .Sin (_bga +_dc .Pi );return _bag ;};
|
||||
|
||||
// RemovePoint removes the point at the index specified by number from the
|
||||
// path. The index is 1-based.
|
||||
func (_eg Path )RemovePoint (number int )Path {if number < 1||number > len (_eg .Points ){return _eg ;};_bd :=number -1;_eg .Points =append (_eg .Points [:_bd ],_eg .Points [_bd +1:]...);return _eg ;};
|
||||
|
||||
// Draw draws the basic line to PDF. Generates the content stream which can be used in page contents or appearance
|
||||
// stream of annotation. Returns the stream content, XForm bounding box (local), bounding box and an error if
|
||||
// one occurred.
|
||||
func (_cef BasicLine )Draw (gsName string )([]byte ,*_g .PdfRectangle ,error ){_bdee :=_cef .LineWidth ;_cgdb :=NewPath ();_cgdb =_cgdb .AppendPoint (NewPoint (_cef .X1 ,_cef .Y1 ));_cgdb =_cgdb .AppendPoint (NewPoint (_cef .X2 ,_cef .Y2 ));_ega :=_f .NewContentCreator ();_bgc :=_cgdb .GetBoundingBox ();DrawPathWithCreator (_cgdb ,_ega );if _cef .LineStyle ==LineStyleDashed {_ega .Add_d ([]int64 {1,1},0);};_ega .Add_RG (_cef .LineColor .R (),_cef .LineColor .G (),_cef .LineColor .B ()).Add_w (_bdee ).Add_S ().Add_Q ();_eef :=&_g .PdfRectangle {};_eef .Llx =_bgc .X ;_eef .Lly =_bgc .Y ;_eef .Urx =_bgc .X +_bgc .Width ;_eef .Ury =_bgc .Y +_bgc .Height ;return _ega .Bytes (),_eef ,nil ;};
|
||||
func (_aac Vector )FlipY ()Vector {_aac .Dy =-_aac .Dy ;return _aac };
|
||||
|
||||
// DrawPathWithCreator makes the path with the content creator.
|
||||
// Adds the PDF commands to draw the path to the creator instance.
|
||||
func DrawPathWithCreator (path Path ,creator *_f .ContentCreator ){for _dbba ,_geag :=range path .Points {if _dbba ==0{creator .Add_m (_geag .X ,_geag .Y );}else {creator .Add_l (_geag .X ,_geag .Y );};};};const (LineStyleSolid LineStyle =0;LineStyleDashed LineStyle =1;);
|
||||
func DrawPathWithCreator (path Path ,creator *_b .ContentCreator ){for _fdd ,_ffg :=range path .Points {if _fdd ==0{creator .Add_m (_ffg .X ,_ffg .Y );}else {creator .Add_l (_ffg .X ,_ffg .Y );};};};const (LineStyleSolid LineStyle =0;LineStyleDashed LineStyle =1;);
|
||||
|
||||
// Vector represents a two-dimensional vector.
|
||||
type Vector struct{Dx float64 ;Dy float64 ;};
|
||||
// Rotate rotates the vector by the specified angle.
|
||||
func (_ga Vector )Rotate (phi float64 )Vector {_ccd :=_ga .Magnitude ();_aaa :=_ga .GetPolarAngle ();return NewVectorPolar (_ccd ,_aaa +phi );};
|
||||
|
||||
// Add adds the specified vector to the current one and returns the result.
|
||||
func (_bed Vector )Add (other Vector )Vector {_bed .Dx +=other .Dx ;_bed .Dy +=other .Dy ;return _bed };
|
||||
|
||||
// Add shifts the coordinates of the point with dx, dy and returns the result.
|
||||
func (_aff Point )Add (dx ,dy float64 )Point {_aff .X +=dx ;_aff .Y +=dy ;return _aff };
|
||||
|
||||
// LineStyle refers to how the line will be created.
|
||||
type LineStyle int ;
|
||||
|
||||
// Circle represents a circle shape with fill and border properties that can be drawn to a PDF content stream.
|
||||
type Circle struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;FillEnabled bool ;FillColor *_g .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_g .PdfColorDeviceRGB ;Opacity float64 ;};
|
||||
|
||||
// GetBoundingBox returns the bounding box of the Bezier path.
|
||||
func (_aa CubicBezierPath )GetBoundingBox ()Rectangle {_agc :=Rectangle {};_bb :=0.0;_ccc :=0.0;_cf :=0.0;_da :=0.0;for _acd ,_ba :=range _aa .Curves {_bbf :=_ba .GetBounds ();if _acd ==0{_bb =_bbf .Llx ;_ccc =_bbf .Urx ;_cf =_bbf .Lly ;_da =_bbf .Ury ;continue ;};if _bbf .Llx < _bb {_bb =_bbf .Llx ;};if _bbf .Urx > _ccc {_ccc =_bbf .Urx ;};if _bbf .Lly < _cf {_cf =_bbf .Lly ;};if _bbf .Ury > _da {_da =_bbf .Ury ;};};_agc .X =_bb ;_agc .Y =_cf ;_agc .Width =_ccc -_bb ;_agc .Height =_da -_cf ;return _agc ;};
|
||||
|
||||
// Offset shifts the Bezier path with the specified offsets.
|
||||
func (_af CubicBezierPath )Offset (offX ,offY float64 )CubicBezierPath {for _adf ,_acf :=range _af .Curves {_af .Curves [_adf ]=_acf .AddOffsetXY (offX ,offY );};return _af ;};
|
||||
|
||||
// Path consists of straight line connections between each point defined in an array of points.
|
||||
type Path struct{Points []Point ;};
|
||||
// NewCubicBezierCurve returns a new cubic Bezier curve.
|
||||
func NewCubicBezierCurve (x0 ,y0 ,x1 ,y1 ,x2 ,y2 ,x3 ,y3 float64 )CubicBezierCurve {_fea :=CubicBezierCurve {};_fea .P0 =NewPoint (x0 ,y0 );_fea .P1 =NewPoint (x1 ,y1 );_fea .P2 =NewPoint (x2 ,y2 );_fea .P3 =NewPoint (x3 ,y3 );return _fea ;};
|
||||
|
||||
// BoundingBox represents the smallest rectangular area that encapsulates an object.
|
||||
type BoundingBox struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;};
|
||||
|
||||
// ToPdfRectangle returns the bounding box as a PDF rectangle.
|
||||
func (_dgg BoundingBox )ToPdfRectangle ()*_fe .PdfRectangle {return &_fe .PdfRectangle {Llx :_dgg .X ,Lly :_dgg .Y ,Urx :_dgg .X +_dgg .Width ,Ury :_dgg .Y +_dgg .Height };};
|
||||
|
||||
// Circle represents a circle shape with fill and border properties that can be drawn to a PDF content stream.
|
||||
type Circle struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;FillEnabled bool ;FillColor *_fe .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_fe .PdfColorDeviceRGB ;Opacity float64 ;};
|
||||
|
||||
// GetBoundingBox returns the bounding box of the path.
|
||||
func (_dg Path )GetBoundingBox ()BoundingBox {_cd :=BoundingBox {};_cgf :=0.0;_ce :=0.0;_dc :=0.0;_bb :=0.0;for _af ,_ea :=range _dg .Points {if _af ==0{_cgf =_ea .X ;_ce =_ea .X ;_dc =_ea .Y ;_bb =_ea .Y ;continue ;};if _ea .X < _cgf {_cgf =_ea .X ;};if _ea .X > _ce {_ce =_ea .X ;};if _ea .Y < _dc {_dc =_ea .Y ;};if _ea .Y > _bb {_bb =_ea .Y ;};};_cd .X =_cgf ;_cd .Y =_dc ;_cd .Width =_ce -_cgf ;_cd .Height =_bb -_dc ;return _cd ;};
|
||||
|
||||
// DrawBezierPathWithCreator makes the bezier path with the content creator.
|
||||
// Adds the PDF commands to draw the path to the creator instance.
|
||||
func DrawBezierPathWithCreator (bpath CubicBezierPath ,creator *_b .ContentCreator ){for _ebf ,_bcga :=range bpath .Curves {if _ebf ==0{creator .Add_m (_bcga .P0 .X ,_bcga .P0 .Y );};creator .Add_c (_bcga .P1 .X ,_bcga .P1 .Y ,_bcga .P2 .X ,_bcga .P2 .Y ,_bcga .P3 .X ,_bcga .P3 .Y );};};
|
||||
|
||||
// Line defines a line shape between point 1 (X1,Y1) and point 2 (X2,Y2). The line ending styles can be none (regular line),
|
||||
// or arrows at either end. The line also has a specified width, color and opacity.
|
||||
type Line struct{X1 float64 ;Y1 float64 ;X2 float64 ;Y2 float64 ;LineColor *_fe .PdfColorDeviceRGB ;Opacity float64 ;LineWidth float64 ;LineEndingStyle1 LineEndingStyle ;LineEndingStyle2 LineEndingStyle ;LineStyle LineStyle ;};
|
||||
|
||||
// Scale scales the vector by the specified factor.
|
||||
func (_ceb Vector )Scale (factor float64 )Vector {_ffc :=_ceb .Magnitude ();_ccc :=_ceb .GetPolarAngle ();_ceb .Dx =factor *_ffc *_g .Cos (_ccc );_ceb .Dy =factor *_ffc *_g .Sin (_ccc );return _ceb ;};
|
||||
|
||||
// NewPoint returns a new point with the coordinates x, y.
|
||||
func NewPoint (x ,y float64 )Point {return Point {X :x ,Y :y }};func (_adb Point )String ()string {return _f .Sprintf ("(\u0025\u002e\u0031\u0066\u002c\u0025\u002e\u0031\u0066\u0029",_adb .X ,_adb .Y );};
|
||||
|
||||
// PolyBezierCurve represents a composite curve that is the result of
|
||||
// joining multiple cubic Bezier curves.
|
||||
type PolyBezierCurve struct{Curves []CubicBezierCurve ;BorderWidth float64 ;BorderColor *_fe .PdfColorDeviceRGB ;FillEnabled bool ;FillColor *_fe .PdfColorDeviceRGB ;};
|
||||
|
||||
// Draw draws the polyline. A graphics state name can be specified for
|
||||
// setting the polyline properties (e.g. setting the opacity). Otherwise leave
|
||||
// empty (""). Returns the content stream as a byte array and the polyline
|
||||
// bounding box.
|
||||
func (_edb Polyline )Draw (gsName string )([]byte ,*_fe .PdfRectangle ,error ){if _edb .LineColor ==nil {_edb .LineColor =_fe .NewPdfColorDeviceRGB (0,0,0);};_bagd :=NewPath ();for _ ,_bda :=range _edb .Points {_bagd =_bagd .AppendPoint (_bda );};_gfb :=_b .NewContentCreator ();_gfb .Add_q ();_gfb .Add_RG (_edb .LineColor .R (),_edb .LineColor .G (),_edb .LineColor .B ());_gfb .Add_w (_edb .LineWidth );if len (gsName )> 1{_gfb .Add_gs (_e .PdfObjectName (gsName ));};DrawPathWithCreator (_bagd ,_gfb );_gfb .Add_S ();_gfb .Add_Q ();return _gfb .Bytes (),_bagd .GetBoundingBox ().ToPdfRectangle (),nil ;};
|
||||
|
||||
// AppendCurve appends the specified Bezier curve to the path.
|
||||
func (_ad CubicBezierPath )AppendCurve (curve CubicBezierCurve )CubicBezierPath {_ad .Curves =append (_ad .Curves ,curve );return _ad ;};
|
||||
func (_de CubicBezierPath )AppendCurve (curve CubicBezierCurve )CubicBezierPath {_de .Curves =append (_de .Curves ,curve );return _de ;};
|
||||
|
||||
// Magnitude returns the magnitude of the vector.
|
||||
func (_gde Vector )Magnitude ()float64 {return _g .Sqrt (_g .Pow (_gde .Dx ,2.0)+_g .Pow (_gde .Dy ,2.0))};
|
||||
|
||||
// Copy returns a clone of the Bezier path.
|
||||
func (_fg CubicBezierPath )Copy ()CubicBezierPath {_aa :=CubicBezierPath {};_aa .Curves =[]CubicBezierCurve {};for _ ,_dd :=range _fg .Curves {_aa .Curves =append (_aa .Curves ,_dd );};return _aa ;};
|
||||
|
||||
// Flip changes the sign of the vector: -vector.
|
||||
func (_eecg Vector )Flip ()Vector {_cbg :=_eecg .Magnitude ();_cgd :=_eecg .GetPolarAngle ();_eecg .Dx =_cbg *_g .Cos (_cgd +_g .Pi );_eecg .Dy =_cbg *_g .Sin (_cgd +_g .Pi );return _eecg ;};
|
||||
|
||||
// Draw draws the polygon. A graphics state name can be specified for
|
||||
// setting the polygon properties (e.g. setting the opacity). Otherwise leave
|
||||
// empty (""). Returns the content stream as a byte array and the polygon
|
||||
// bounding box.
|
||||
func (_afa Polygon )Draw (gsName string )([]byte ,*_fe .PdfRectangle ,error ){_dcf :=_b .NewContentCreator ();_dcf .Add_q ();_afa .FillEnabled =_afa .FillEnabled &&_afa .FillColor !=nil ;if _afa .FillEnabled {_dcf .Add_rg (_afa .FillColor .R (),_afa .FillColor .G (),_afa .FillColor .B ());};_afa .BorderEnabled =_afa .BorderEnabled &&_afa .BorderColor !=nil ;if _afa .BorderEnabled {_dcf .Add_RG (_afa .BorderColor .R (),_afa .BorderColor .G (),_afa .BorderColor .B ());_dcf .Add_w (_afa .BorderWidth );};if len (gsName )> 1{_dcf .Add_gs (_e .PdfObjectName (gsName ));};_ead :=NewPath ();for _ ,_gff :=range _afa .Points {for _dff ,_edf :=range _gff {_ead =_ead .AppendPoint (_edf );if _dff ==0{_dcf .Add_m (_edf .X ,_edf .Y );}else {_dcf .Add_l (_edf .X ,_edf .Y );};};_dcf .Add_h ();};if _afa .FillEnabled &&_afa .BorderEnabled {_dcf .Add_B ();}else if _afa .FillEnabled {_dcf .Add_f ();}else if _afa .BorderEnabled {_dcf .Add_S ();};_dcf .Add_Q ();return _dcf .Bytes (),_ead .GetBoundingBox ().ToPdfRectangle (),nil ;};
|
||||
|
||||
// Draw draws the basic line to PDF. Generates the content stream which can be used in page contents or appearance
|
||||
// stream of annotation. Returns the stream content, XForm bounding box (local), bounding box and an error if
|
||||
// one occurred.
|
||||
func (_bf BasicLine )Draw (gsName string )([]byte ,*_fe .PdfRectangle ,error ){_agd :=_bf .LineWidth ;_egd :=NewPath ();_egd =_egd .AppendPoint (NewPoint (_bf .X1 ,_bf .Y1 ));_egd =_egd .AppendPoint (NewPoint (_bf .X2 ,_bf .Y2 ));_fbe :=_b .NewContentCreator ();_bab :=_egd .GetBoundingBox ();DrawPathWithCreator (_egd ,_fbe );if _bf .LineStyle ==LineStyleDashed {_fbe .Add_d ([]int64 {1,1},0);};_fbe .Add_RG (_bf .LineColor .R (),_bf .LineColor .G (),_bf .LineColor .B ()).Add_w (_agd ).Add_S ().Add_Q ();return _fbe .Bytes (),_bab .ToPdfRectangle (),nil ;};
|
||||
|
||||
// Copy returns a clone of the path.
|
||||
func (_fc Path )Copy ()Path {_ag :=Path {};_ag .Points =[]Point {};for _ ,_gga :=range _fc .Points {_ag .Points =append (_ag .Points ,_gga );};return _ag ;};
|
||||
|
||||
// Polygon is a multi-point shape that can be drawn to a PDF content stream.
|
||||
type Polygon struct{Points [][]Point ;FillEnabled bool ;FillColor *_fe .PdfColorDeviceRGB ;BorderEnabled bool ;BorderColor *_fe .PdfColorDeviceRGB ;BorderWidth float64 ;};
|
||||
|
||||
// Length returns the number of points in the path.
|
||||
func (_bcg Path )Length ()int {return len (_bcg .Points )};
|
||||
|
||||
// GetBoundingBox returns the bounding box of the Bezier path.
|
||||
func (_efe CubicBezierPath )GetBoundingBox ()Rectangle {_gc :=Rectangle {};_cb :=0.0;_ddb :=0.0;_aeb :=0.0;_ca :=0.0;for _cf ,_ec :=range _efe .Curves {_db :=_ec .GetBounds ();if _cf ==0{_cb =_db .Llx ;_ddb =_db .Urx ;_aeb =_db .Lly ;_ca =_db .Ury ;continue ;};if _db .Llx < _cb {_cb =_db .Llx ;};if _db .Urx > _ddb {_ddb =_db .Urx ;};if _db .Lly < _aeb {_aeb =_db .Lly ;};if _db .Ury > _ca {_ca =_db .Ury ;};};_gc .X =_cb ;_gc .Y =_aeb ;_gc .Width =_ddb -_cb ;_gc .Height =_ca -_aeb ;return _gc ;};
|
||||
|
||||
// Add shifts the coordinates of the point with dx, dy and returns the result.
|
||||
func (_cff Point )Add (dx ,dy float64 )Point {_cff .X +=dx ;_cff .Y +=dy ;return _cff };
|
||||
|
||||
// NewCubicBezierPath returns a new empty cubic Bezier path.
|
||||
func NewCubicBezierPath ()CubicBezierPath {_da :=CubicBezierPath {};_da .Curves =[]CubicBezierCurve {};return _da ;};
|
||||
|
||||
// Draw draws the line to PDF contentstream. Generates the content stream which can be used in page contents or
|
||||
// appearance stream of annotation. Returns the stream content, XForm bounding box (local), bounding box and an error
|
||||
// if one occurred.
|
||||
func (_bcfe Line )Draw (gsName string )([]byte ,*_fe .PdfRectangle ,error ){_eef ,_gd :=_bcfe .X1 ,_bcfe .X2 ;_gdf ,_efd :=_bcfe .Y1 ,_bcfe .Y2 ;_bcgf :=_efd -_gdf ;_eeg :=_gd -_eef ;_efa :=_g .Atan2 (_bcgf ,_eeg );L :=_g .Sqrt (_g .Pow (_eeg ,2.0)+_g .Pow (_bcgf ,2.0));_cdb :=_bcfe .LineWidth ;_afc :=_g .Pi ;_gfe :=1.0;if _eeg < 0{_gfe *=-1.0;};if _bcgf < 0{_gfe *=-1.0;};VsX :=_gfe *(-_cdb /2*_g .Cos (_efa +_afc /2));VsY :=_gfe *(-_cdb /2*_g .Sin (_efa +_afc /2)+_cdb *_g .Sin (_efa +_afc /2));V1X :=VsX +_cdb /2*_g .Cos (_efa +_afc /2);V1Y :=VsY +_cdb /2*_g .Sin (_efa +_afc /2);V2X :=VsX +_cdb /2*_g .Cos (_efa +_afc /2)+L *_g .Cos (_efa );V2Y :=VsY +_cdb /2*_g .Sin (_efa +_afc /2)+L *_g .Sin (_efa );V3X :=VsX +_cdb /2*_g .Cos (_efa +_afc /2)+L *_g .Cos (_efa )+_cdb *_g .Cos (_efa -_afc /2);V3Y :=VsY +_cdb /2*_g .Sin (_efa +_afc /2)+L *_g .Sin (_efa )+_cdb *_g .Sin (_efa -_afc /2);V4X :=VsX +_cdb /2*_g .Cos (_efa -_afc /2);V4Y :=VsY +_cdb /2*_g .Sin (_efa -_afc /2);_daa :=NewPath ();_daa =_daa .AppendPoint (NewPoint (V1X ,V1Y ));_daa =_daa .AppendPoint (NewPoint (V2X ,V2Y ));_daa =_daa .AppendPoint (NewPoint (V3X ,V3Y ));_daa =_daa .AppendPoint (NewPoint (V4X ,V4Y ));_ece :=_bcfe .LineEndingStyle1 ;_ebb :=_bcfe .LineEndingStyle2 ;_dge :=3*_cdb ;_ceg :=3*_cdb ;_ac :=(_ceg -_cdb )/2;if _ebb ==LineEndingStyleArrow {_affb :=_daa .GetPointNumber (2);_fde :=NewVectorPolar (_dge ,_efa +_afc );_dfe :=_affb .AddVector (_fde );_bgc :=NewVectorPolar (_ceg /2,_efa +_afc /2);_afag :=NewVectorPolar (_dge ,_efa );_ecc :=NewVectorPolar (_ac ,_efa +_afc /2);_dce :=_dfe .AddVector (_ecc );_cfg :=_afag .Add (_bgc .Flip ());_fb :=_dce .AddVector (_cfg );_cec :=_bgc .Scale (2).Flip ().Add (_cfg .Flip ());_fbb :=_fb .AddVector (_cec );_ba :=_dfe .AddVector (NewVectorPolar (_cdb ,_efa -_afc /2));_eec :=NewPath ();_eec =_eec .AppendPoint (_daa .GetPointNumber (1));_eec =_eec .AppendPoint (_dfe );_eec =_eec .AppendPoint (_dce );_eec =_eec .AppendPoint (_fb );_eec =_eec .AppendPoint (_fbb );_eec =_eec .AppendPoint (_ba );_eec =_eec .AppendPoint (_daa .GetPointNumber (4));_daa =_eec ;};if _ece ==LineEndingStyleArrow {_dffa :=_daa .GetPointNumber (1);_aab :=_daa .GetPointNumber (_daa .Length ());_cecc :=NewVectorPolar (_cdb /2,_efa +_afc +_afc /2);_cef :=_dffa .AddVector (_cecc );_gdc :=NewVectorPolar (_dge ,_efa ).Add (NewVectorPolar (_ceg /2,_efa +_afc /2));_gb :=_cef .AddVector (_gdc );_aec :=NewVectorPolar (_ac ,_efa -_afc /2);_bag :=_gb .AddVector (_aec );_gfed :=NewVectorPolar (_dge ,_efa );_bd :=_aab .AddVector (_gfed );_dee :=NewVectorPolar (_ac ,_efa +_afc +_afc /2);_dfg :=_bd .AddVector (_dee );_gda :=_cef ;_egb :=NewPath ();_egb =_egb .AppendPoint (_cef );_egb =_egb .AppendPoint (_gb );_egb =_egb .AppendPoint (_bag );for _ ,_fcb :=range _daa .Points [1:len (_daa .Points )-1]{_egb =_egb .AppendPoint (_fcb );};_egb =_egb .AppendPoint (_bd );_egb =_egb .AppendPoint (_dfg );_egb =_egb .AppendPoint (_gda );_daa =_egb ;};_ebc :=_b .NewContentCreator ();_ebc .Add_q ().Add_rg (_bcfe .LineColor .R (),_bcfe .LineColor .G (),_bcfe .LineColor .B ());if len (gsName )> 1{_ebc .Add_gs (_e .PdfObjectName (gsName ));};_daa =_daa .Offset (_bcfe .X1 ,_bcfe .Y1 );_dfa :=_daa .GetBoundingBox ();DrawPathWithCreator (_daa ,_ebc );if _bcfe .LineStyle ==LineStyleDashed {_ebc .Add_d ([]int64 {1,1},0).Add_S ().Add_f ().Add_Q ();}else {_ebc .Add_f ().Add_Q ();};return _ebc .Bytes (),_dfa .ToPdfRectangle (),nil ;};
|
||||
|
||||
// Point represents a two-dimensional point.
|
||||
type Point struct{X float64 ;Y float64 ;};
|
||||
|
||||
// LineStyle refers to how the line will be created.
|
||||
type LineStyle int ;
|
||||
|
||||
// Draw draws the rectangle. Can specify a graphics state (gsName) for setting opacity etc.
|
||||
// Otherwise leave empty (""). Returns the content stream as a byte array, bounding box and an error on failure.
|
||||
func (_dcg Rectangle )Draw (gsName string )([]byte ,*_fe .PdfRectangle ,error ){_fed :=NewPath ();_fed =_fed .AppendPoint (NewPoint (0,0));_fed =_fed .AppendPoint (NewPoint (0,_dcg .Height ));_fed =_fed .AppendPoint (NewPoint (_dcg .Width ,_dcg .Height ));_fed =_fed .AppendPoint (NewPoint (_dcg .Width ,0));_fed =_fed .AppendPoint (NewPoint (0,0));if _dcg .X !=0||_dcg .Y !=0{_fed =_fed .Offset (_dcg .X ,_dcg .Y );};_ff :=_b .NewContentCreator ();_ff .Add_q ();if _dcg .FillEnabled {_ff .Add_rg (_dcg .FillColor .R (),_dcg .FillColor .G (),_dcg .FillColor .B ());};if _dcg .BorderEnabled {_ff .Add_RG (_dcg .BorderColor .R (),_dcg .BorderColor .G (),_dcg .BorderColor .B ());_ff .Add_w (_dcg .BorderWidth );};if len (gsName )> 1{_ff .Add_gs (_e .PdfObjectName (gsName ));};DrawPathWithCreator (_fed ,_ff );_ff .Add_h ();if _dcg .FillEnabled &&_dcg .BorderEnabled {_ff .Add_B ();}else if _dcg .FillEnabled {_ff .Add_f ();}else if _dcg .BorderEnabled {_ff .Add_S ();};_ff .Add_Q ();return _ff .Bytes (),_fed .GetBoundingBox ().ToPdfRectangle (),nil ;};
|
||||
|
||||
// CubicBezierPath represents a collection of cubic Bezier curves.
|
||||
type CubicBezierPath struct{Curves []CubicBezierCurve ;};
|
||||
|
||||
// BasicLine defines a line between point 1 (X1,Y1) and point 2 (X2,Y2). The line has a specified width, color and opacity.
|
||||
type BasicLine struct{X1 float64 ;Y1 float64 ;X2 float64 ;Y2 float64 ;LineColor *_fe .PdfColorDeviceRGB ;Opacity float64 ;LineWidth float64 ;LineStyle LineStyle ;};
|
||||
|
||||
// Vector represents a two-dimensional vector.
|
||||
type Vector struct{Dx float64 ;Dy float64 ;};const (LineEndingStyleNone LineEndingStyle =0;LineEndingStyleArrow LineEndingStyle =1;LineEndingStyleButt LineEndingStyle =2;);
|
||||
|
||||
// NewPath returns a new empty path.
|
||||
func NewPath ()Path {return Path {}};
|
||||
|
||||
// Offset shifts the Bezier path with the specified offsets.
|
||||
func (_bg CubicBezierPath )Offset (offX ,offY float64 )CubicBezierPath {for _dad ,_cg :=range _bg .Curves {_bg .Curves [_dad ]=_cg .AddOffsetXY (offX ,offY );};return _bg ;};
|
||||
|
||||
// CubicBezierCurve is defined by:
|
||||
// R(t) = P0*(1-t)^3 + P1*3*t*(1-t)^2 + P2*3*t^2*(1-t) + P3*t^3
|
||||
// where P0 is the current point, P1, P2 control points and P3 the final point.
|
||||
type CubicBezierCurve struct{P0 Point ;P1 Point ;P2 Point ;P3 Point ;};
|
||||
|
||||
// AddVector adds vector to a point.
|
||||
func (_eb Point )AddVector (v Vector )Point {_eb .X +=v .Dx ;_eb .Y +=v .Dy ;return _eb };
|
||||
// LineEndingStyle defines the line ending style for lines.
|
||||
// The currently supported line ending styles are None, Arrow (ClosedArrow) and Butt.
|
||||
type LineEndingStyle int ;
|
||||
|
||||
// Scale scales the vector by the specified factor.
|
||||
func (_egg Vector )Scale (factor float64 )Vector {_deb :=_egg .Magnitude ();_cbe :=_egg .GetPolarAngle ();_egg .Dx =factor *_deb *_dc .Cos (_cbe );_egg .Dy =factor *_deb *_dc .Sin (_cbe );return _egg ;};
|
||||
// Rectangle is a shape with a specified Width and Height and a lower left corner at (X,Y) that can be
|
||||
// drawn to a PDF content stream. The rectangle can optionally have a border and a filling color.
|
||||
// The Width/Height includes the border (if any specified), i.e. is positioned inside.
|
||||
type Rectangle struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;FillEnabled bool ;FillColor *_fe .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_fe .PdfColorDeviceRGB ;Opacity float64 ;};
|
||||
|
||||
// GetBounds returns the bounding box of the Bezier curve.
|
||||
func (_d CubicBezierCurve )GetBounds ()_fe .PdfRectangle {_ggc :=_d .P0 .X ;_ae :=_d .P0 .X ;_ad :=_d .P0 .Y ;_eb :=_d .P0 .Y ;for _c :=0.0;_c <=1.0;_c +=0.001{Rx :=_d .P0 .X *_g .Pow (1-_c ,3)+_d .P1 .X *3*_c *_g .Pow (1-_c ,2)+_d .P2 .X *3*_g .Pow (_c ,2)*(1-_c )+_d .P3 .X *_g .Pow (_c ,3);Ry :=_d .P0 .Y *_g .Pow (1-_c ,3)+_d .P1 .Y *3*_c *_g .Pow (1-_c ,2)+_d .P2 .Y *3*_g .Pow (_c ,2)*(1-_c )+_d .P3 .Y *_g .Pow (_c ,3);if Rx < _ggc {_ggc =Rx ;};if Rx > _ae {_ae =Rx ;};if Ry < _ad {_ad =Ry ;};if Ry > _eb {_eb =Ry ;};};_ef :=_fe .PdfRectangle {};_ef .Llx =_ggc ;_ef .Lly =_ad ;_ef .Urx =_ae ;_ef .Ury =_eb ;return _ef ;};
|
||||
|
||||
// Draw draws the composite Bezier curve. A graphics state name can be
|
||||
// specified for setting the curve properties (e.g. setting the opacity).
|
||||
// Otherwise leave empty (""). Returns the content stream as a byte array and
|
||||
// the curve bounding box.
|
||||
func (_ge PolyBezierCurve )Draw (gsName string )([]byte ,*_fe .PdfRectangle ,error ){if _ge .BorderColor ==nil {_ge .BorderColor =_fe .NewPdfColorDeviceRGB (0,0,0);};_feb :=NewCubicBezierPath ();for _ ,_cc :=range _ge .Curves {_feb =_feb .AppendCurve (_cc );};_age :=_b .NewContentCreator ();_age .Add_q ();_ge .FillEnabled =_ge .FillEnabled &&_ge .FillColor !=nil ;if _ge .FillEnabled {_age .Add_rg (_ge .FillColor .R (),_ge .FillColor .G (),_ge .FillColor .B ());};_age .Add_RG (_ge .BorderColor .R (),_ge .BorderColor .G (),_ge .BorderColor .B ());_age .Add_w (_ge .BorderWidth );if len (gsName )> 1{_age .Add_gs (_e .PdfObjectName (gsName ));};for _ ,_ccf :=range _feb .Curves {_age .Add_m (_ccf .P0 .X ,_ccf .P0 .Y );_age .Add_c (_ccf .P1 .X ,_ccf .P1 .Y ,_ccf .P2 .X ,_ccf .P2 .Y ,_ccf .P3 .X ,_ccf .P3 .Y );};if _ge .FillEnabled {_age .Add_h ();_age .Add_B ();}else {_age .Add_S ();};_age .Add_Q ();return _age .Bytes (),_feb .GetBoundingBox ().ToPdfRectangle (),nil ;};
|
||||
|
||||
// Polyline defines a slice of points that are connected as straight lines.
|
||||
type Polyline struct{Points []Point ;LineColor *_fe .PdfColorDeviceRGB ;LineWidth float64 ;};
|
||||
|
||||
// NewVectorBetween returns a new vector with the direction specified by
|
||||
// the subtraction of point a from point b (b-a).
|
||||
func NewVectorBetween (a Point ,b Point )Vector {_bbc :=Vector {};_bbc .Dx =b .X -a .X ;_bbc .Dy =b .Y -a .Y ;return _bbc ;};
|
||||
|
||||
// NewVector returns a new vector with the direction specified by dx and dy.
|
||||
func NewVector (dx ,dy float64 )Vector {_cce :=Vector {};_cce .Dx =dx ;_cce .Dy =dy ;return _cce };
|
||||
|
||||
// GetPointNumber returns the path point at the index specified by number.
|
||||
// The index is 1-based.
|
||||
func (_be Path )GetPointNumber (number int )Point {if number < 1||number > len (_be .Points ){return Point {};};return _be .Points [number -1];};
|
||||
|
||||
// Add adds the specified vector to the current one and returns the result.
|
||||
func (_ab Vector )Add (other Vector )Vector {_ab .Dx +=other .Dx ;_ab .Dy +=other .Dy ;return _ab };
|
||||
|
||||
// Rotate returns a new Point at `p` rotated by `theta` degrees.
|
||||
func (_fa Point )Rotate (theta float64 )Point {_agg :=_ee .NewPoint (_fa .X ,_fa .Y ).Rotate (theta );return NewPoint (_agg .X ,_agg .Y );};
|
||||
|
||||
// Path consists of straight line connections between each point defined in an array of points.
|
||||
type Path struct{Points []Point ;};
|
||||
|
||||
// AddOffsetXY adds X,Y offset to all points on a curve.
|
||||
func (_gg CubicBezierCurve )AddOffsetXY (offX ,offY float64 )CubicBezierCurve {_gg .P0 .X +=offX ;_gg .P1 .X +=offX ;_gg .P2 .X +=offX ;_gg .P3 .X +=offX ;_gg .P0 .Y +=offY ;_gg .P1 .Y +=offY ;_gg .P2 .Y +=offY ;_gg .P3 .Y +=offY ;return _gg ;};
|
||||
|
||||
// RemovePoint removes the point at the index specified by number from the
|
||||
// path. The index is 1-based.
|
||||
func (_cfd Path )RemovePoint (number int )Path {if number < 1||number > len (_cfd .Points ){return _cfd ;};_add :=number -1;_cfd .Points =append (_cfd .Points [:_add ],_cfd .Points [_add +1:]...);return _cfd ;};
|
||||
|
||||
// AppendPoint adds the specified point to the path.
|
||||
func (_cbd Path )AppendPoint (point Point )Path {_cbd .Points =append (_cbd .Points ,point );return _cbd };
|
||||
|
||||
// NewVectorPolar returns a new vector calculated from the specified
|
||||
// magnitude and angle.
|
||||
func NewVectorPolar (length float64 ,theta float64 )Vector {_eeb :=Vector {};_eeb .Dx =length *_g .Cos (theta );_eeb .Dy =length *_g .Sin (theta );return _eeb ;};
|
||||
|
||||
// FlipX flips the sign of the Dx component of the vector.
|
||||
func (_cgc Vector )FlipX ()Vector {_cgc .Dx =-_cgc .Dx ;return _cgc };
|
||||
|
||||
// Draw draws the circle. Can specify a graphics state (gsName) for setting opacity etc. Otherwise leave empty ("").
|
||||
// Returns the content stream as a byte array, the bounding box and an error on failure.
|
||||
func (_ecd Circle )Draw (gsName string )([]byte ,*_fe .PdfRectangle ,error ){_bcf :=_ecd .Width /2;_gfg :=_ecd .Height /2;if _ecd .BorderEnabled {_bcf -=_ecd .BorderWidth /2;_gfg -=_ecd .BorderWidth /2;};_agb :=0.551784;_fce :=_bcf *_agb ;_fd :=_gfg *_agb ;_ggca :=NewCubicBezierPath ();_ggca =_ggca .AppendCurve (NewCubicBezierCurve (-_bcf ,0,-_bcf ,_fd ,-_fce ,_gfg ,0,_gfg ));_ggca =_ggca .AppendCurve (NewCubicBezierCurve (0,_gfg ,_fce ,_gfg ,_bcf ,_fd ,_bcf ,0));_ggca =_ggca .AppendCurve (NewCubicBezierCurve (_bcf ,0,_bcf ,-_fd ,_fce ,-_gfg ,0,-_gfg ));_ggca =_ggca .AppendCurve (NewCubicBezierCurve (0,-_gfg ,-_fce ,-_gfg ,-_bcf ,-_fd ,-_bcf ,0));_ggca =_ggca .Offset (_bcf ,_gfg );if _ecd .BorderEnabled {_ggca =_ggca .Offset (_ecd .BorderWidth /2,_ecd .BorderWidth /2);};if _ecd .X !=0||_ecd .Y !=0{_ggca =_ggca .Offset (_ecd .X ,_ecd .Y );};_dbg :=_b .NewContentCreator ();_dbg .Add_q ();if _ecd .FillEnabled {_dbg .Add_rg (_ecd .FillColor .R (),_ecd .FillColor .G (),_ecd .FillColor .B ());};if _ecd .BorderEnabled {_dbg .Add_RG (_ecd .BorderColor .R (),_ecd .BorderColor .G (),_ecd .BorderColor .B ());_dbg .Add_w (_ecd .BorderWidth );};if len (gsName )> 1{_dbg .Add_gs (_e .PdfObjectName (gsName ));};DrawBezierPathWithCreator (_ggca ,_dbg );_dbg .Add_h ();if _ecd .FillEnabled &&_ecd .BorderEnabled {_dbg .Add_B ();}else if _ecd .FillEnabled {_dbg .Add_f ();}else if _ecd .BorderEnabled {_dbg .Add_S ();};_dbg .Add_Q ();_eg :=_ggca .GetBoundingBox ();if _ecd .BorderEnabled {_eg .Height +=_ecd .BorderWidth ;_eg .Width +=_ecd .BorderWidth ;_eg .X -=_ecd .BorderWidth /2;_eg .Y -=_ecd .BorderWidth /2;};return _dbg .Bytes (),_eg .ToPdfRectangle (),nil ;};
|
||||
|
||||
// Offset shifts the path with the specified offsets.
|
||||
func (_gf Path )Offset (offX ,offY float64 )Path {for _df ,_ed :=range _gf .Points {_gf .Points [_df ]=_ed .Add (offX ,offY );};return _gf ;};
|
||||
|
||||
// ToPdfRectangle returns the rectangle as a PDF rectangle.
|
||||
func (_gfa Rectangle )ToPdfRectangle ()*_fe .PdfRectangle {return &_fe .PdfRectangle {Llx :_gfa .X ,Lly :_gfa .Y ,Urx :_gfa .X +_gfa .Width ,Ury :_gfa .Y +_gfa .Height };};
|
||||
|
||||
// GetPolarAngle returns the angle the magnitude of the vector forms with the
|
||||
// positive X-axis going counterclockwise.
|
||||
func (_eca Vector )GetPolarAngle ()float64 {return _dc .Atan2 (_eca .Dy ,_eca .Dx )};
|
||||
func (_faf Vector )GetPolarAngle ()float64 {return _g .Atan2 (_faf .Dy ,_faf .Dx )};
|
||||
|
||||
// AddVector adds vector to a point.
|
||||
func (_dac Point )AddVector (v Vector )Point {_dac .X +=v .Dx ;_dac .Y +=v .Dy ;return _dac };
|
||||
1694
core/core.go
1694
core/core.go
File diff suppressed because one or more lines are too long
@ -9,11 +9,53 @@
|
||||
// Use of this source code is governed by the UniDoc End User License Agreement
|
||||
// terms that can be accessed at https://unidoc.io/eula/
|
||||
|
||||
package crypt ;import (_e "crypto/aes";_c "crypto/cipher";_fd "crypto/md5";_fe "crypto/rand";_be "crypto/rc4";_f "fmt";_d "github.com/unidoc/unipdf/v3/common";_dd "github.com/unidoc/unipdf/v3/core/security";_b "io";);func init (){_dff ("\u0041\u0045\u0053V\u0032",_bec )};
|
||||
package crypt ;import (_a "crypto/aes";_c "crypto/cipher";_d "crypto/md5";_e "crypto/rand";_aa "crypto/rc4";_g "fmt";_ee "github.com/unidoc/unipdf/v3/common";_ag "github.com/unidoc/unipdf/v3/core/security";_bc "io";);func init (){_bda ("\u0041\u0045\u0053V\u0032",_ad )};var _ Filter =filterV2 {};func (filterIdentity )Name ()string {return "\u0049\u0064\u0065\u006e\u0074\u0069\u0074\u0079"};
|
||||
|
||||
// FilterDict represents information from a CryptFilter dictionary.
|
||||
type FilterDict struct{CFM string ;AuthEvent _ag .AuthEvent ;Length int ;};func (filterIdentity )KeyLength ()int {return 0};func _ad (_af FilterDict )(Filter ,error ){if _af .Length ==128{_ee .Log .Debug ("\u0041\u0045S\u0056\u0032\u0020c\u0072\u0079\u0070\u0074\u0020f\u0069\u006c\u0074\u0065\u0072 l\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072\u0073\u0020\u0074\u006f\u0020\u0062e\u0020i\u006e\u0020\u0062\u0069\u0074\u0073 ra\u0074\u0068\u0065\u0072\u0020\u0074\u0068\u0061\u006e\u0020\u0062\u0079te\u0073 \u002d\u0020\u0061\u0073s\u0075m\u0069n\u0067\u0020b\u0069\u0074s \u0028\u0025\u0064\u0029",_af .Length );_af .Length /=8;};if _af .Length !=0&&_af .Length !=16{return nil ,_g .Errorf ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0041\u0045\u0053\u0056\u0032\u0020\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074e\u0072\u0020\u006c\u0065\u006eg\u0074\u0068 \u0028\u0025\u0064\u0029",_af .Length );};return filterAESV2 {},nil ;};func _ade (_gd FilterDict )(Filter ,error ){if _gd .Length ==256{_ee .Log .Debug ("\u0041\u0045S\u0056\u0033\u0020c\u0072\u0079\u0070\u0074\u0020f\u0069\u006c\u0074\u0065\u0072 l\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072\u0073\u0020\u0074\u006f\u0020\u0062e\u0020i\u006e\u0020\u0062\u0069\u0074\u0073 ra\u0074\u0068\u0065\u0072\u0020\u0074\u0068\u0061\u006e\u0020\u0062\u0079te\u0073 \u002d\u0020\u0061\u0073s\u0075m\u0069n\u0067\u0020b\u0069\u0074s \u0028\u0025\u0064\u0029",_gd .Length );_gd .Length /=8;};if _gd .Length !=0&&_gd .Length !=32{return nil ,_g .Errorf ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0041\u0045\u0053\u0056\u0033\u0020\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074e\u0072\u0020\u006c\u0065\u006eg\u0074\u0068 \u0028\u0025\u0064\u0029",_gd .Length );};return filterAESV3 {},nil ;};var (_gba =make (map[string ]filterFunc ););
|
||||
|
||||
// NewFilterAESV2 creates an AES-based filter with a 128 bit key (AESV2).
|
||||
func NewFilterAESV2 ()Filter {_da ,_ab :=_ad (FilterDict {});if _ab !=nil {_ee .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020A\u0045\u0053\u0020\u0056\u0032\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_ab );return filterAESV2 {};};return _da ;};
|
||||
|
||||
// NewIdentity creates an identity filter that bypasses all data without changes.
|
||||
func NewIdentity ()Filter {return filterIdentity {}};func init (){_bda ("\u0041\u0045\u0053V\u0033",_ade )};type filterAES struct{};
|
||||
|
||||
// Name implements Filter interface.
|
||||
func (filterAESV2 )Name ()string {return "\u0041\u0045\u0053V\u0032"};func _fgf (_cba string )(filterFunc ,error ){_ccd :=_gba [string (_cba )];if _ccd ==nil {return nil ,_g .Errorf ("\u0075\u006e\u0073\u0075p\u0070\u006f\u0072\u0074\u0065\u0064\u0020\u0063\u0072\u0079p\u0074 \u0066\u0069\u006c\u0074\u0065\u0072\u003a \u0025\u0071",_cba );};return _ccd ,nil ;};
|
||||
|
||||
// KeyLength implements Filter interface.
|
||||
func (filterAESV2 )KeyLength ()int {return 128/8};var _ Filter =filterAESV2 {};
|
||||
|
||||
// KeyLength implements Filter interface.
|
||||
func (_cfb filterV2 )KeyLength ()int {return _cfb ._fec };
|
||||
|
||||
// MakeKey implements Filter interface.
|
||||
func (filterAESV3 )MakeKey (_ ,_ uint32 ,ekey []byte )([]byte ,error ){return ekey ,nil };
|
||||
|
||||
// MakeKey implements Filter interface.
|
||||
func (filterAESV2 )MakeKey (objNum ,genNum uint32 ,ekey []byte )([]byte ,error ){return _gfg (objNum ,genNum ,ekey ,true );};
|
||||
|
||||
// HandlerVersion implements Filter interface.
|
||||
func (filterAESV3 )HandlerVersion ()(V ,R int ){V ,R =5,6;return ;};
|
||||
|
||||
// DecryptBytes implements Filter interface.
|
||||
func (filterV2 )DecryptBytes (buf []byte ,okey []byte )([]byte ,error ){_dc ,_cdc :=_aa .NewCipher (okey );if _cdc !=nil {return nil ,_cdc ;};_ee .Log .Trace ("\u0052\u00434\u0020\u0044\u0065c\u0072\u0079\u0070\u0074\u003a\u0020\u0025\u0020\u0078",buf );_dc .XORKeyStream (buf ,buf );_ee .Log .Trace ("\u0074o\u003a\u0020\u0025\u0020\u0078",buf );return buf ,nil ;};func (filterAES )DecryptBytes (buf []byte ,okey []byte )([]byte ,error ){_ea ,_gf :=_a .NewCipher (okey );if _gf !=nil {return nil ,_gf ;};if len (buf )< 16{_ee .Log .Debug ("\u0045R\u0052\u004f\u0052\u0020\u0041\u0045\u0053\u0020\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0062\u0075\u0066\u0020\u0025\u0073",buf );return buf ,_g .Errorf ("\u0041\u0045\u0053\u003a B\u0075\u0066\u0020\u006c\u0065\u006e\u0020\u003c\u0020\u0031\u0036\u0020\u0028\u0025d\u0029",len (buf ));};_bg :=buf [:16];buf =buf [16:];if len (buf )%16!=0{_ee .Log .Debug ("\u0020\u0069\u0076\u0020\u0028\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (_bg ),_bg );_ee .Log .Debug ("\u0062\u0075\u0066\u0020\u0028\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );return buf ,_g .Errorf ("\u0041\u0045\u0053\u0020\u0062\u0075\u0066\u0020\u006c\u0065\u006e\u0067\u0074\u0068\u0020\u006e\u006f\u0074\u0020\u006d\u0075\u006c\u0074\u0069p\u006c\u0065\u0020\u006f\u0066 \u0031\u0036 \u0028\u0025\u0064\u0029",len (buf ));};_bf :=_c .NewCBCDecrypter (_ea ,_bg );_ee .Log .Trace ("A\u0045\u0053\u0020\u0044ec\u0072y\u0070\u0074\u0020\u0028\u0025d\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );_ee .Log .Trace ("\u0063\u0068\u006f\u0070\u0020\u0041\u0045\u0053\u0020\u0044\u0065c\u0072\u0079\u0070\u0074\u0020\u0028\u0025\u0064\u0029\u003a \u0025\u0020\u0078",len (buf ),buf );_bf .CryptBlocks (buf ,buf );_ee .Log .Trace ("\u0074\u006f\u0020(\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );if len (buf )==0{_ee .Log .Trace ("\u0045\u006d\u0070\u0074\u0079\u0020b\u0075\u0066\u002c\u0020\u0072\u0065\u0074\u0075\u0072\u006e\u0069\u006e\u0067 \u0065\u006d\u0070\u0074\u0079\u0020\u0073t\u0072\u0069\u006e\u0067");return buf ,nil ;};_ege :=int (buf [len (buf )-1]);if _ege > len (buf ){_ee .Log .Debug ("\u0049\u006c\u006c\u0065g\u0061\u006c\u0020\u0070\u0061\u0064\u0020\u006c\u0065\u006eg\u0074h\u0020\u0028\u0025\u0064\u0020\u003e\u0020%\u0064\u0029",_ege ,len (buf ));return buf ,_g .Errorf ("\u0069n\u0076a\u006c\u0069\u0064\u0020\u0070a\u0064\u0020l\u0065\u006e\u0067\u0074\u0068");};buf =buf [:len (buf )-_ege ];return buf ,nil ;};type filterAESV2 struct{filterAES };func init (){_bda ("\u0056\u0032",_cg )};func (filterIdentity )HandlerVersion ()(V ,R int ){return ;};
|
||||
|
||||
// Name implements Filter interface.
|
||||
func (filterAESV3 )Name ()string {return "\u0041\u0045\u0053V\u0033"};
|
||||
|
||||
// PDFVersion implements Filter interface.
|
||||
func (_eff filterV2 )PDFVersion ()[2]int {return [2]int {}};func (filterAES )EncryptBytes (buf []byte ,okey []byte )([]byte ,error ){_ff ,_afb :=_a .NewCipher (okey );if _afb !=nil {return nil ,_afb ;};_ee .Log .Trace ("A\u0045\u0053\u0020\u0045nc\u0072y\u0070\u0074\u0020\u0028\u0025d\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );const _eg =_a .BlockSize ;_ef :=_eg -len (buf )%_eg ;for _bcg :=0;_bcg < _ef ;_bcg ++{buf =append (buf ,byte (_ef ));};_ee .Log .Trace ("\u0050a\u0064d\u0065\u0064\u0020\u0074\u006f \u0025\u0064 \u0062\u0079\u0074\u0065\u0073",len (buf ));_adf :=make ([]byte ,_eg +len (buf ));_cd :=_adf [:_eg ];if _ ,_gc :=_bc .ReadFull (_e .Reader ,_cd );_gc !=nil {return nil ,_gc ;};_fg :=_c .NewCBCEncrypter (_ff ,_cd );_fg .CryptBlocks (_adf [_eg :],buf );buf =_adf ;_ee .Log .Trace ("\u0074\u006f\u0020(\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );return buf ,nil ;};func (filterIdentity )MakeKey (objNum ,genNum uint32 ,fkey []byte )([]byte ,error ){return fkey ,nil };
|
||||
|
||||
// MakeKey implements Filter interface.
|
||||
func (_ffc filterV2 )MakeKey (objNum ,genNum uint32 ,ekey []byte )([]byte ,error ){return _gfg (objNum ,genNum ,ekey ,false );};
|
||||
|
||||
// PDFVersion implements Filter interface.
|
||||
func (filterAESV2 )PDFVersion ()[2]int {return [2]int {1,5}};
|
||||
|
||||
// Name implements Filter interface.
|
||||
func (filterV2 )Name ()string {return "\u0056\u0032"};
|
||||
|
||||
// Filter is a common interface for crypt filter methods.
|
||||
type Filter interface{
|
||||
|
||||
@ -31,78 +73,36 @@ HandlerVersion ()(V ,R int );
|
||||
|
||||
// MakeKey generates a object encryption key based on file encryption key and object numbers.
|
||||
// Used only for legacy filters - AESV3 doesn't change the key for each object.
|
||||
MakeKey (_ge ,_bfga uint32 ,_gab []byte )([]byte ,error );
|
||||
MakeKey (_eee ,_gfgc uint32 ,_gcf []byte )([]byte ,error );
|
||||
|
||||
// EncryptBytes encrypts a buffer using object encryption key, as returned by MakeKey.
|
||||
// Implementation may reuse a buffer and encrypt data in-place.
|
||||
EncryptBytes (_gdf []byte ,_fbg []byte )([]byte ,error );
|
||||
EncryptBytes (_gga []byte ,_ga []byte )([]byte ,error );
|
||||
|
||||
// DecryptBytes decrypts a buffer using object encryption key, as returned by MakeKey.
|
||||
// Implementation may reuse a buffer and decrypt data in-place.
|
||||
DecryptBytes (_fec []byte ,_db []byte )([]byte ,error );};
|
||||
|
||||
// NewIdentity creates an identity filter that bypasses all data without changes.
|
||||
func NewIdentity ()Filter {return filterIdentity {}};
|
||||
|
||||
// Name implements Filter interface.
|
||||
func (filterV2 )Name ()string {return "\u0056\u0032"};
|
||||
DecryptBytes (_ffd []byte ,_eb []byte )([]byte ,error );};var _ Filter =filterAESV3 {};
|
||||
|
||||
// HandlerVersion implements Filter interface.
|
||||
func (_dde filterV2 )HandlerVersion ()(V ,R int ){V ,R =2,3;return ;};func _ff (_ab FilterDict )(Filter ,error ){if _ab .Length %8!=0{return nil ,_f .Errorf ("\u0063\u0072\u0079p\u0074\u0020\u0066\u0069\u006c\u0074\u0065\u0072\u0020\u006c\u0065\u006e\u0067\u0074\u0068\u0020\u006e\u006f\u0074\u0020\u006d\u0075\u006c\u0074\u0069\u0070\u006c\u0065\u0020o\u0066\u0020\u0038\u0020\u0028\u0025\u0064\u0029",_ab .Length );};if _ab .Length < 5||_ab .Length > 16{if _ab .Length ==40||_ab .Length ==64||_ab .Length ==128{_d .Log .Debug ("\u0053\u0054\u0041\u004e\u0044AR\u0044\u0020V\u0049\u004f\u004c\u0041\u0054\u0049\u004f\u004e\u003a\u0020\u0043\u0072\u0079\u0070\u0074\u0020\u004c\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072s\u0020\u0074\u006f \u0062\u0065\u0020\u0069\u006e\u0020\u0062\u0069\u0074\u0073\u0020\u0072\u0061t\u0068\u0065\u0072\u0020\u0074h\u0061\u006e\u0020\u0062\u0079\u0074\u0065\u0073\u0020-\u0020\u0061s\u0073u\u006d\u0069\u006e\u0067\u0020\u0062\u0069t\u0073\u0020\u0028\u0025\u0064\u0029",_ab .Length );_ab .Length /=8;}else {return nil ,_f .Errorf ("\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074\u0065\u0072\u0020\u006c\u0065\u006e\u0067\u0074h\u0020\u006e\u006f\u0074\u0020\u0069\u006e \u0072\u0061\u006e\u0067\u0065\u0020\u0034\u0030\u0020\u002d\u00201\u0032\u0038\u0020\u0062\u0069\u0074\u0020\u0028\u0025\u0064\u0029",_ab .Length );};};return filterV2 {_ed :_ab .Length },nil ;};type filterAESV2 struct{filterAES };func (filterIdentity )DecryptBytes (p []byte ,okey []byte )([]byte ,error ){return p ,nil };
|
||||
func (_cga filterV2 )HandlerVersion ()(V ,R int ){V ,R =2,3;return ;};func (filterIdentity )DecryptBytes (p []byte ,okey []byte )([]byte ,error ){return p ,nil };type filterFunc func (_fcf FilterDict )(Filter ,error );type filterV2 struct{_fec int };
|
||||
|
||||
// DecryptBytes implements Filter interface.
|
||||
func (filterV2 )DecryptBytes (buf []byte ,okey []byte )([]byte ,error ){_ea ,_gge :=_be .NewCipher (okey );if _gge !=nil {return nil ,_gge ;};_d .Log .Trace ("\u0052\u00434\u0020\u0044\u0065c\u0072\u0079\u0070\u0074\u003a\u0020\u0025\u0020\u0078",buf );_ea .XORKeyStream (buf ,buf );_d .Log .Trace ("\u0074o\u003a\u0020\u0025\u0020\u0078",buf );return buf ,nil ;};func init (){_dff ("\u0041\u0045\u0053V\u0033",_da )};func (filterAES )DecryptBytes (buf []byte ,okey []byte )([]byte ,error ){_bc ,_cg :=_e .NewCipher (okey );if _cg !=nil {return nil ,_cg ;};if len (buf )< 16{_d .Log .Debug ("\u0045R\u0052\u004f\u0052\u0020\u0041\u0045\u0053\u0020\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0062\u0075\u0066\u0020\u0025\u0073",buf );return buf ,_f .Errorf ("\u0041\u0045\u0053\u003a B\u0075\u0066\u0020\u006c\u0065\u006e\u0020\u003c\u0020\u0031\u0036\u0020\u0028\u0025d\u0029",len (buf ));};_af :=buf [:16];buf =buf [16:];if len (buf )%16!=0{_d .Log .Debug ("\u0020\u0069\u0076\u0020\u0028\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (_af ),_af );_d .Log .Debug ("\u0062\u0075\u0066\u0020\u0028\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );return buf ,_f .Errorf ("\u0041\u0045\u0053\u0020\u0062\u0075\u0066\u0020\u006c\u0065\u006e\u0067\u0074\u0068\u0020\u006e\u006f\u0074\u0020\u006d\u0075\u006c\u0074\u0069p\u006c\u0065\u0020\u006f\u0066 \u0031\u0036 \u0028\u0025\u0064\u0029",len (buf ));};_bfd :=_c .NewCBCDecrypter (_bc ,_af );_d .Log .Trace ("A\u0045\u0053\u0020\u0044ec\u0072y\u0070\u0074\u0020\u0028\u0025d\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );_d .Log .Trace ("\u0063\u0068\u006f\u0070\u0020\u0041\u0045\u0053\u0020\u0044\u0065c\u0072\u0079\u0070\u0074\u0020\u0028\u0025\u0064\u0029\u003a \u0025\u0020\u0078",len (buf ),buf );_bfd .CryptBlocks (buf ,buf );_d .Log .Trace ("\u0074\u006f\u0020(\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );if len (buf )==0{_d .Log .Trace ("\u0045\u006d\u0070\u0074\u0079\u0020b\u0075\u0066\u002c\u0020\u0072\u0065\u0074\u0075\u0072\u006e\u0069\u006e\u0067 \u0065\u006d\u0070\u0074\u0079\u0020\u0073t\u0072\u0069\u006e\u0067");return buf ,nil ;};_dg :=int (buf [len (buf )-1]);if _dg > len (buf ){_d .Log .Debug ("\u0049\u006c\u006c\u0065g\u0061\u006c\u0020\u0070\u0061\u0064\u0020\u006c\u0065\u006eg\u0074h\u0020\u0028\u0025\u0064\u0020\u003e\u0020%\u0064\u0029",_dg ,len (buf ));return buf ,_f .Errorf ("\u0069n\u0076a\u006c\u0069\u0064\u0020\u0070a\u0064\u0020l\u0065\u006e\u0067\u0074\u0068");};buf =buf [:len (buf )-_dg ];return buf ,nil ;};func (filterIdentity )HandlerVersion ()(V ,R int ){return ;};type filterAESV3 struct{filterAES };
|
||||
|
||||
// MakeKey implements Filter interface.
|
||||
func (filterAESV3 )MakeKey (_ ,_ uint32 ,ekey []byte )([]byte ,error ){return ekey ,nil };
|
||||
|
||||
// PDFVersion implements Filter interface.
|
||||
func (filterAESV3 )PDFVersion ()[2]int {return [2]int {2,0}};func (filterAES )EncryptBytes (buf []byte ,okey []byte )([]byte ,error ){_fda ,_fc :=_e .NewCipher (okey );if _fc !=nil {return nil ,_fc ;};_d .Log .Trace ("A\u0045\u0053\u0020\u0045nc\u0072y\u0070\u0074\u0020\u0028\u0025d\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );const _ga =_e .BlockSize ;_fb :=_ga -len (buf )%_ga ;for _bfg :=0;_bfg < _fb ;_bfg ++{buf =append (buf ,byte (_fb ));};_d .Log .Trace ("\u0050a\u0064d\u0065\u0064\u0020\u0074\u006f \u0025\u0064 \u0062\u0079\u0074\u0065\u0073",len (buf ));_cfd :=make ([]byte ,_ga +len (buf ));_bb :=_cfd [:_ga ];if _ ,_bg :=_b .ReadFull (_fe .Reader ,_bb );_bg !=nil {return nil ,_bg ;};_ddd :=_c .NewCBCEncrypter (_fda ,_bb );_ddd .CryptBlocks (_cfd [_ga :],buf );buf =_cfd ;_d .Log .Trace ("\u0074\u006f\u0020(\u0025\u0064\u0029\u003a\u0020\u0025\u0020\u0078",len (buf ),buf );return buf ,nil ;};
|
||||
|
||||
// Name implements Filter interface.
|
||||
func (filterAESV2 )Name ()string {return "\u0041\u0045\u0053V\u0032"};func _bec (_df FilterDict )(Filter ,error ){if _df .Length ==128{_d .Log .Debug ("\u0041\u0045S\u0056\u0032\u0020c\u0072\u0079\u0070\u0074\u0020f\u0069\u006c\u0074\u0065\u0072 l\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072\u0073\u0020\u0074\u006f\u0020\u0062e\u0020i\u006e\u0020\u0062\u0069\u0074\u0073 ra\u0074\u0068\u0065\u0072\u0020\u0074\u0068\u0061\u006e\u0020\u0062\u0079te\u0073 \u002d\u0020\u0061\u0073s\u0075m\u0069n\u0067\u0020b\u0069\u0074s \u0028\u0025\u0064\u0029",_df .Length );_df .Length /=8;};if _df .Length !=0&&_df .Length !=16{return nil ,_f .Errorf ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0041\u0045\u0053\u0056\u0032\u0020\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074e\u0072\u0020\u006c\u0065\u006eg\u0074\u0068 \u0028\u0025\u0064\u0029",_df .Length );};return filterAESV2 {},nil ;};
|
||||
// KeyLength implements Filter interface.
|
||||
func (filterAESV3 )KeyLength ()int {return 256/8};
|
||||
|
||||
// NewFilterAESV3 creates an AES-based filter with a 256 bit key (AESV3).
|
||||
func NewFilterAESV3 ()Filter {_eb ,_gd :=_da (FilterDict {});if _gd !=nil {_d .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020A\u0045\u0053\u0020\u0056\u0033\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_gd );return filterAESV3 {};};return _eb ;};func _fff (_bbg ,_bgb uint32 ,_ceb []byte ,_bbc bool )([]byte ,error ){_beb :=make ([]byte ,len (_ceb )+5);for _dgb :=0;_dgb < len (_ceb );_dgb ++{_beb [_dgb ]=_ceb [_dgb ];};for _abe :=0;_abe < 3;_abe ++{_cd :=byte ((_bbg >>uint32 (8*_abe ))&0xff);_beb [_abe +len (_ceb )]=_cd ;};for _ba :=0;_ba < 2;_ba ++{_ae :=byte ((_bgb >>uint32 (8*_ba ))&0xff);_beb [_ba +len (_ceb )+3]=_ae ;};if _bbc {_beb =append (_beb ,0x73);_beb =append (_beb ,0x41);_beb =append (_beb ,0x6C);_beb =append (_beb ,0x54);};_cebb :=_fd .New ();_cebb .Write (_beb );_ca :=_cebb .Sum (nil );if len (_ceb )+5< 16{return _ca [0:len (_ceb )+5],nil ;};return _ca ,nil ;};
|
||||
|
||||
// KeyLength implements Filter interface.
|
||||
func (filterAESV3 )KeyLength ()int {return 256/8};func (filterIdentity )KeyLength ()int {return 0};func init (){_dff ("\u0056\u0032",_ff )};func _dff (_gfb string ,_cef filterFunc ){if _ ,_bfc :=_agb [_gfb ];_bfc {panic ("\u0061l\u0072e\u0061\u0064\u0079\u0020\u0072e\u0067\u0069s\u0074\u0065\u0072\u0065\u0064");};_agb [_gfb ]=_cef ;};var _ Filter =filterAESV3 {};var _ Filter =filterAESV2 {};
|
||||
|
||||
// MakeKey implements Filter interface.
|
||||
func (filterAESV2 )MakeKey (objNum ,genNum uint32 ,ekey []byte )([]byte ,error ){return _fff (objNum ,genNum ,ekey ,true );};func (filterIdentity )Name ()string {return "\u0049\u0064\u0065\u006e\u0074\u0069\u0074\u0079"};
|
||||
|
||||
// EncryptBytes implements Filter interface.
|
||||
func (filterV2 )EncryptBytes (buf []byte ,okey []byte )([]byte ,error ){_beg ,_gg :=_be .NewCipher (okey );if _gg !=nil {return nil ,_gg ;};_d .Log .Trace ("\u0052\u00434\u0020\u0045\u006ec\u0072\u0079\u0070\u0074\u003a\u0020\u0025\u0020\u0078",buf );_beg .XORKeyStream (buf ,buf );_d .Log .Trace ("\u0074o\u003a\u0020\u0025\u0020\u0078",buf );return buf ,nil ;};type filterAES struct{};type filterIdentity struct{};
|
||||
|
||||
// FilterDict represents information from a CryptFilter dictionary.
|
||||
type FilterDict struct{CFM string ;AuthEvent _dd .AuthEvent ;Length int ;};func (filterIdentity )MakeKey (objNum ,genNum uint32 ,fkey []byte )([]byte ,error ){return fkey ,nil };var (_agb =make (map[string ]filterFunc ););
|
||||
|
||||
// HandlerVersion implements Filter interface.
|
||||
func (filterAESV2 )HandlerVersion ()(V ,R int ){V ,R =4,4;return ;};func (filterIdentity )PDFVersion ()[2]int {return [2]int {}};
|
||||
|
||||
// PDFVersion implements Filter interface.
|
||||
func (filterAESV2 )PDFVersion ()[2]int {return [2]int {1,5}};func _da (_ad FilterDict )(Filter ,error ){if _ad .Length ==256{_d .Log .Debug ("\u0041\u0045S\u0056\u0033\u0020c\u0072\u0079\u0070\u0074\u0020f\u0069\u006c\u0074\u0065\u0072 l\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072\u0073\u0020\u0074\u006f\u0020\u0062e\u0020i\u006e\u0020\u0062\u0069\u0074\u0073 ra\u0074\u0068\u0065\u0072\u0020\u0074\u0068\u0061\u006e\u0020\u0062\u0079te\u0073 \u002d\u0020\u0061\u0073s\u0075m\u0069n\u0067\u0020b\u0069\u0074s \u0028\u0025\u0064\u0029",_ad .Length );_ad .Length /=8;};if _ad .Length !=0&&_ad .Length !=32{return nil ,_f .Errorf ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0041\u0045\u0053\u0056\u0033\u0020\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074e\u0072\u0020\u006c\u0065\u006eg\u0074\u0068 \u0028\u0025\u0064\u0029",_ad .Length );};return filterAESV3 {},nil ;};type filterV2 struct{_ed int };type filterFunc func (_de FilterDict )(Filter ,error );
|
||||
func NewFilterAESV3 ()Filter {_adg ,_ge :=_ade (FilterDict {});if _ge !=nil {_ee .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020A\u0045\u0053\u0020\u0056\u0033\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_ge );return filterAESV3 {};};return _adg ;};func (filterIdentity )PDFVersion ()[2]int {return [2]int {}};func _bda (_gff string ,_efb filterFunc ){if _ ,_bfc :=_gba [_gff ];_bfc {panic ("\u0061l\u0072e\u0061\u0064\u0079\u0020\u0072e\u0067\u0069s\u0074\u0065\u0072\u0065\u0064");};_gba [_gff ]=_efb ;};
|
||||
|
||||
// NewFilter creates CryptFilter from a corresponding dictionary.
|
||||
func NewFilter (d FilterDict )(Filter ,error ){_ffa ,_adf :=_dgg (d .CFM );if _adf !=nil {return nil ,_adf ;};_gf ,_adf :=_ffa (d );if _adf !=nil {return nil ,_adf ;};return _gf ,nil ;};var _ Filter =filterV2 {};
|
||||
func NewFilter (d FilterDict )(Filter ,error ){_cge ,_cbd :=_fgf (d .CFM );if _cbd !=nil {return nil ,_cbd ;};_gbf ,_cbd :=_cge (d );if _cbd !=nil {return nil ,_cbd ;};return _gbf ,nil ;};func (filterIdentity )EncryptBytes (p []byte ,okey []byte )([]byte ,error ){return p ,nil };func _gfg (_db ,_fff uint32 ,_gfge []byte ,_cb bool )([]byte ,error ){_bcb :=make ([]byte ,len (_gfge )+5);for _de :=0;_de < len (_gfge );_de ++{_bcb [_de ]=_gfge [_de ];};for _cf :=0;_cf < 3;_cf ++{_cda :=byte ((_db >>uint32 (8*_cf ))&0xff);_bcb [_cf +len (_gfge )]=_cda ;};for _fe :=0;_fe < 2;_fe ++{_bb :=byte ((_fff >>uint32 (8*_fe ))&0xff);_bcb [_fe +len (_gfge )+3]=_bb ;};if _cb {_bcb =append (_bcb ,0x73);_bcb =append (_bcb ,0x41);_bcb =append (_bcb ,0x6C);_bcb =append (_bcb ,0x54);};_ead :=_d .New ();_ead .Write (_bcb );_fcc :=_ead .Sum (nil );if len (_gfge )+5< 16{return _fcc [0:len (_gfge )+5],nil ;};return _fcc ,nil ;};type filterIdentity struct{};
|
||||
|
||||
// NewFilterV2 creates a RC4-based filter with a specified key length (in bytes).
|
||||
func NewFilterV2 (length int )Filter {_cea ,_cbd :=_ff (FilterDict {Length :length });if _cbd !=nil {_d .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020R\u0043\u0034\u0020\u0056\u0032\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_cbd );return filterV2 {_ed :length };};return _cea ;};
|
||||
|
||||
// NewFilterAESV2 creates an AES-based filter with a 128 bit key (AESV2).
|
||||
func NewFilterAESV2 ()Filter {_cf ,_gc :=_bec (FilterDict {});if _gc !=nil {_d .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020A\u0045\u0053\u0020\u0056\u0032\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_gc );return filterAESV2 {};};return _cf ;};
|
||||
|
||||
// PDFVersion implements Filter interface.
|
||||
func (_ec filterV2 )PDFVersion ()[2]int {return [2]int {}};
|
||||
|
||||
// MakeKey implements Filter interface.
|
||||
func (_cgg filterV2 )MakeKey (objNum ,genNum uint32 ,ekey []byte )([]byte ,error ){return _fff (objNum ,genNum ,ekey ,false );};func (filterIdentity )EncryptBytes (p []byte ,okey []byte )([]byte ,error ){return p ,nil };
|
||||
// EncryptBytes implements Filter interface.
|
||||
func (filterV2 )EncryptBytes (buf []byte ,okey []byte )([]byte ,error ){_gb ,_aaa :=_aa .NewCipher (okey );if _aaa !=nil {return nil ,_aaa ;};_ee .Log .Trace ("\u0052\u00434\u0020\u0045\u006ec\u0072\u0079\u0070\u0074\u003a\u0020\u0025\u0020\u0078",buf );_gb .XORKeyStream (buf ,buf );_ee .Log .Trace ("\u0074o\u003a\u0020\u0025\u0020\u0078",buf );return buf ,nil ;};
|
||||
|
||||
// HandlerVersion implements Filter interface.
|
||||
func (filterAESV3 )HandlerVersion ()(V ,R int ){V ,R =5,6;return ;};func _dgg (_eg string )(filterFunc ,error ){_cbdb :=_agb [string (_eg )];if _cbdb ==nil {return nil ,_f .Errorf ("\u0075\u006e\u0073\u0075p\u0070\u006f\u0072\u0074\u0065\u0064\u0020\u0063\u0072\u0079p\u0074 \u0066\u0069\u006c\u0074\u0065\u0072\u003a \u0025\u0071",_eg );};return _cbdb ,nil ;};
|
||||
func (filterAESV2 )HandlerVersion ()(V ,R int ){V ,R =4,4;return ;};
|
||||
|
||||
// KeyLength implements Filter interface.
|
||||
func (_bce filterV2 )KeyLength ()int {return _bce ._ed };
|
||||
// PDFVersion implements Filter interface.
|
||||
func (filterAESV3 )PDFVersion ()[2]int {return [2]int {2,0}};type filterAESV3 struct{filterAES };func _cg (_be FilterDict )(Filter ,error ){if _be .Length %8!=0{return nil ,_g .Errorf ("\u0063\u0072\u0079p\u0074\u0020\u0066\u0069\u006c\u0074\u0065\u0072\u0020\u006c\u0065\u006e\u0067\u0074\u0068\u0020\u006e\u006f\u0074\u0020\u006d\u0075\u006c\u0074\u0069\u0070\u006c\u0065\u0020o\u0066\u0020\u0038\u0020\u0028\u0025\u0064\u0029",_be .Length );};if _be .Length < 5||_be .Length > 16{if _be .Length ==40||_be .Length ==64||_be .Length ==128{_ee .Log .Debug ("\u0053\u0054\u0041\u004e\u0044AR\u0044\u0020V\u0049\u004f\u004c\u0041\u0054\u0049\u004f\u004e\u003a\u0020\u0043\u0072\u0079\u0070\u0074\u0020\u004c\u0065\u006e\u0067\u0074\u0068\u0020\u0061\u0070\u0070\u0065\u0061\u0072s\u0020\u0074\u006f \u0062\u0065\u0020\u0069\u006e\u0020\u0062\u0069\u0074\u0073\u0020\u0072\u0061t\u0068\u0065\u0072\u0020\u0074h\u0061\u006e\u0020\u0062\u0079\u0074\u0065\u0073\u0020-\u0020\u0061s\u0073u\u006d\u0069\u006e\u0067\u0020\u0062\u0069t\u0073\u0020\u0028\u0025\u0064\u0029",_be .Length );_be .Length /=8;}else {return nil ,_g .Errorf ("\u0063\u0072\u0079\u0070\u0074\u0020\u0066\u0069\u006c\u0074\u0065\u0072\u0020\u006c\u0065\u006e\u0067\u0074h\u0020\u006e\u006f\u0074\u0020\u0069\u006e \u0072\u0061\u006e\u0067\u0065\u0020\u0034\u0030\u0020\u002d\u00201\u0032\u0038\u0020\u0062\u0069\u0074\u0020\u0028\u0025\u0064\u0029",_be .Length );};};return filterV2 {_fec :_be .Length },nil ;};
|
||||
|
||||
// KeyLength implements Filter interface.
|
||||
func (filterAESV2 )KeyLength ()int {return 128/8};
|
||||
// NewFilterV2 creates a RC4-based filter with a specified key length (in bytes).
|
||||
func NewFilterV2 (length int )Filter {_bde ,_cde :=_cg (FilterDict {Length :length });if _cde !=nil {_ee .Log .Error ("E\u0052\u0052\u004f\u0052\u003a\u0020\u0063\u006f\u0075l\u0064\u0020\u006e\u006f\u0074\u0020\u0063re\u0061\u0074\u0065\u0020R\u0043\u0034\u0020\u0056\u0032\u0020\u0063\u0072\u0079pt\u0020\u0066i\u006c\u0074\u0065\u0072\u003a\u0020\u0025\u0076",_cde );return filterV2 {_fec :length };};return _bde ;};
|
||||
File diff suppressed because one or more lines are too long
2345
creator/creator.go
2345
creator/creator.go
File diff suppressed because one or more lines are too long
File diff suppressed because one or more lines are too long
22
fdf/fdf.go
22
fdf/fdf.go
File diff suppressed because one or more lines are too long
@ -10,28 +10,28 @@
|
||||
// terms that can be accessed at https://unidoc.io/eula/
|
||||
|
||||
// Package fjson provides support for loading PDF form field data from JSON data/files.
|
||||
package fjson ;import (_a "encoding/json";_ca "github.com/unidoc/unipdf/v3/core";_eg "github.com/unidoc/unipdf/v3/model";_e "io";_c "os";);type fieldValue struct{Name string `json:"name"`;Value string `json:"value"`;
|
||||
package fjson ;import (_e "encoding/json";_fe "github.com/unidoc/unipdf/v3/core";_fb "github.com/unidoc/unipdf/v3/model";_f "io";_aa "os";);type fieldValue struct{Name string `json:"name"`;Value string `json:"value"`;
|
||||
|
||||
// Options lists allowed values if present.
|
||||
Options []string `json:"options,omitempty"`;};
|
||||
|
||||
// FieldData represents form field data loaded from JSON file.
|
||||
type FieldData struct{_b []fieldValue };
|
||||
|
||||
// LoadFromJSON loads JSON form data from `r`.
|
||||
func LoadFromJSON (r _e .Reader )(*FieldData ,error ){var _ce FieldData ;_bd :=_a .NewDecoder (r ).Decode (&_ce ._b );if _bd !=nil {return nil ,_bd ;};return &_ce ,nil ;};
|
||||
func LoadFromJSON (r _f .Reader )(*FieldData ,error ){var _d FieldData ;_ea :=_e .NewDecoder (r ).Decode (&_d ._c );if _ea !=nil {return nil ,_ea ;};return &_d ,nil ;};
|
||||
|
||||
// FieldValues implements model.FieldValueProvider interface.
|
||||
func (_fa *FieldData )FieldValues ()(map[string ]_ca .PdfObject ,error ){_bff :=make (map[string ]_ca .PdfObject );for _ ,_ccd :=range _fa ._b {if len (_ccd .Value )> 0{_bff [_ccd .Name ]=_ca .MakeString (_ccd .Value );};};return _bff ,nil ;};
|
||||
|
||||
// JSON returns the field data as a string in JSON format.
|
||||
func (_gd FieldData )JSON ()(string ,error ){_gge ,_ded :=_a .MarshalIndent (_gd ._b ,"","\u0020\u0020\u0020\u0020");return string (_gge ),_ded ;};
|
||||
|
||||
// LoadFromPDF loads form field data from a PDF.
|
||||
func LoadFromPDF (rs _e .ReadSeeker )(*FieldData ,error ){_cef ,_d :=_eg .NewPdfReader (rs );if _d !=nil {return nil ,_d ;};if _cef .AcroForm ==nil {return nil ,nil ;};var _f []fieldValue ;_de :=_cef .AcroForm .AllFields ();for _ ,_ga :=range _de {var _dc []string ;_bg :=make (map[string ]struct{});_ab ,_gg :=_ga .FullName ();if _gg !=nil {return nil ,_gg ;};if _ag ,_cb :=_ga .V .(*_ca .PdfObjectString );_cb {_f =append (_f ,fieldValue {Name :_ab ,Value :_ag .Decoded ()});continue ;};var _ge string ;for _ ,_cg :=range _ga .Annotations {_fc ,_af :=_ca .GetName (_cg .AS );if _af {_ge =_fc .String ();};_egc ,_abf :=_ca .GetDict (_cg .AP );if !_abf {continue ;};_ef ,_ :=_ca .GetDict (_egc .Get ("\u004e"));for _ ,_gf :=range _ef .Keys (){_bba :=_gf .String ();if _ ,_fe :=_bg [_bba ];!_fe {_dc =append (_dc ,_bba );_bg [_bba ]=struct{}{};};};_ac ,_ :=_ca .GetDict (_egc .Get ("\u0044"));for _ ,_ae :=range _ac .Keys (){_ec :=_ae .String ();if _ ,_fbg :=_bg [_ec ];!_fbg {_dc =append (_dc ,_ec );_bg [_ec ]=struct{}{};};};};_gaf :=fieldValue {Name :_ab ,Value :_ge ,Options :_dc };_f =append (_f ,_gaf );};_cfe :=FieldData {_b :_f };return &_cfe ,nil ;};
|
||||
// FieldData represents form field data loaded from JSON file.
|
||||
type FieldData struct{_c []fieldValue };
|
||||
|
||||
// LoadFromJSONFile loads form field data from a JSON file.
|
||||
func LoadFromJSONFile (filePath string )(*FieldData ,error ){_gc ,_bb :=_c .Open (filePath );if _bb !=nil {return nil ,_bb ;};defer _gc .Close ();return LoadFromJSON (_gc );};
|
||||
func LoadFromJSONFile (filePath string )(*FieldData ,error ){_df ,_cb :=_aa .Open (filePath );if _cb !=nil {return nil ,_cb ;};defer _df .Close ();return LoadFromJSON (_df );};
|
||||
|
||||
// FieldValues implements model.FieldValueProvider interface.
|
||||
func (_ee *FieldData )FieldValues ()(map[string ]_fe .PdfObject ,error ){_ae :=make (map[string ]_fe .PdfObject );for _ ,_dd :=range _ee ._c {if len (_dd .Value )> 0{_ae [_dd .Name ]=_fe .MakeString (_dd .Value );};};return _ae ,nil ;};
|
||||
|
||||
// LoadFromPDFFile loads form field data from a PDF file.
|
||||
func LoadFromPDFFile (filePath string )(*FieldData ,error ){_cc ,_da :=_c .Open (filePath );if _da !=nil {return nil ,_da ;};defer _cc .Close ();return LoadFromPDF (_cc );};
|
||||
func LoadFromPDFFile (filePath string )(*FieldData ,error ){_ag ,_acc :=_aa .Open (filePath );if _acc !=nil {return nil ,_acc ;};defer _ag .Close ();return LoadFromPDF (_ag );};
|
||||
|
||||
// LoadFromPDF loads form field data from a PDF.
|
||||
func LoadFromPDF (rs _f .ReadSeeker )(*FieldData ,error ){_dfd ,_cf :=_fb .NewPdfReader (rs );if _cf !=nil {return nil ,_cf ;};if _dfd .AcroForm ==nil {return nil ,nil ;};var _g []fieldValue ;_b :=_dfd .AcroForm .AllFields ();for _ ,_be :=range _b {var _fd []string ;_cd :=make (map[string ]struct{});_de ,_gb :=_be .FullName ();if _gb !=nil {return nil ,_gb ;};if _cdf ,_gd :=_be .V .(*_fe .PdfObjectString );_gd {_g =append (_g ,fieldValue {Name :_de ,Value :_cdf .Decoded ()});continue ;};var _ec string ;for _ ,_cff :=range _be .Annotations {_cbf ,_gc :=_fe .GetName (_cff .AS );if _gc {_ec =_cbf .String ();};_ecb ,_ac :=_fe .GetDict (_cff .AP );if !_ac {continue ;};_cc ,_ :=_fe .GetDict (_ecb .Get ("\u004e"));for _ ,_cbg :=range _cc .Keys (){_fef :=_cbg .String ();if _ ,_ccb :=_cd [_fef ];!_ccb {_fd =append (_fd ,_fef );_cd [_fef ]=struct{}{};};};_bb ,_ :=_fe .GetDict (_ecb .Get ("\u0044"));for _ ,_fde :=range _bb .Keys (){_gdf :=_fde .String ();if _ ,_ff :=_cd [_gdf ];!_ff {_fd =append (_fd ,_gdf );_cd [_gdf ]=struct{}{};};};};_bd :=fieldValue {Name :_de ,Value :_ec ,Options :_fd };_g =append (_g ,_bd );};_aae :=FieldData {_c :_g };return &_aae ,nil ;};
|
||||
|
||||
// JSON returns the field data as a string in JSON format.
|
||||
func (_ecc FieldData )JSON ()(string ,error ){_eae ,_def :=_e .MarshalIndent (_ecc ._c ,"","\u0020\u0020\u0020\u0020");return string (_eae ),_def ;};
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||||
// Use of this source code is governed by the UniDoc End User License Agreement
|
||||
// terms that can be accessed at https://unidoc.io/eula/
|
||||
|
||||
package endian ;import (_gb "encoding/binary";_b "unsafe";);func IsBig ()bool {return _a };func init (){const _bc =int (_b .Sizeof (0));_c :=1;_cg :=(*[_bc ]byte )(_b .Pointer (&_c ));if _cg [0]==0{_a =true ;ByteOrder =_gb .BigEndian ;}else {ByteOrder =_gb .LittleEndian ;};};var (ByteOrder _gb .ByteOrder ;_a bool ;);func IsLittle ()bool {return !_a };
|
||||
package endian ;import (_g "encoding/binary";_gd "unsafe";);var (ByteOrder _g .ByteOrder ;_c bool ;);func init (){const _fb =int (_gd .Sizeof (0));_df :=1;_a :=(*[_fb ]byte )(_gd .Pointer (&_df ));if _a [0]==0{_c =true ;ByteOrder =_g .BigEndian ;}else {ByteOrder =_g .LittleEndian ;};};func IsBig ()bool {return _c };func IsLittle ()bool {return !_c };
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||||
// Use of this source code is governed by the UniDoc End User License Agreement
|
||||
// terms that can be accessed at https://unidoc.io/eula/
|
||||
|
||||
package basic ;import _a "github.com/unidoc/unipdf/v3/internal/jbig2/errors";func (_ab IntsMap )Delete (key uint64 ){delete (_ab ,key )};func (_fd *Stack )Peek ()(_ce interface{},_dc bool ){return _fd .peek ()};func Abs (v int )int {if v > 0{return v ;};return -v ;};type IntsMap map[uint64 ][]int ;func NewIntSlice (i int )*IntSlice {_ef :=IntSlice (make ([]int ,i ));return &_ef };func (_ea *IntSlice )Copy ()*IntSlice {_ee :=IntSlice (make ([]int ,len (*_ea )));copy (_ee ,*_ea );return &_ee ;};func (_gf *IntSlice )Add (v int )error {if _gf ==nil {return _a .Error ("\u0049\u006e\u0074S\u006c\u0069\u0063\u0065\u002e\u0041\u0064\u0064","\u0073\u006c\u0069\u0063\u0065\u0020\u006e\u006f\u0074\u0020\u0064\u0065f\u0069\u006e\u0065\u0064");};*_gf =append (*_gf ,v );return nil ;};func (_db IntSlice )Get (index int )(int ,error ){if index > len (_db )-1{return 0,_a .Errorf ("\u0049\u006e\u0074S\u006c\u0069\u0063\u0065\u002e\u0047\u0065\u0074","\u0069\u006e\u0064\u0065x:\u0020\u0025\u0064\u0020\u006f\u0075\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006eg\u0065",index );};return _db [index ],nil ;};type Stack struct{Data []interface{};Aux *Stack ;};func Sign (v float32 )float32 {if v >=0.0{return 1.0;};return -1.0;};func Max (x ,y int )int {if x > y {return x ;};return y ;};func (_gffg *Stack )top ()int {return len (_gffg .Data )-1};func (_d IntsMap )Get (key uint64 )(int ,bool ){_fg ,_dd :=_d [key ];if !_dd {return 0,false ;};if len (_fg )==0{return 0,false ;};return _fg [0],true ;};func (_g IntsMap )GetSlice (key uint64 )([]int ,bool ){_de ,_e :=_g [key ];if !_e {return nil ,false ;};return _de ,true ;};func (_dde *Stack )Pop ()(_bca interface{},_df bool ){_bca ,_df =_dde .peek ();if !_df {return nil ,_df ;};_dde .Data =_dde .Data [:_dde .top ()];return _bca ,true ;};func (_cg *NumSlice )AddInt (v int ){*_cg =append (*_cg ,float32 (v ))};func (_dg *Stack )peek ()(interface{},bool ){_aeg :=_dg .top ();if _aeg ==-1{return nil ,false ;};return _dg .Data [_aeg ],true ;};func (_f IntsMap )Add (key uint64 ,value int ){_f [key ]=append (_f [key ],value )};func (_ad NumSlice )GetIntSlice ()[]int {_bg :=make ([]int ,len (_ad ));for _fgd ,_da :=range _ad {_bg [_fgd ]=int (_da );};return _bg ;};func (_cc *Stack )Len ()int {return len (_cc .Data )};type NumSlice []float32 ;func Min (x ,y int )int {if x < y {return x ;};return y ;};func (_gff NumSlice )GetInt (i int )(int ,error ){const _fb ="\u0047\u0065\u0074\u0049\u006e\u0074";if i < 0||i > len (_gff )-1{return 0,_a .Errorf (_fb ,"\u0069n\u0064\u0065\u0078\u003a\u0020\u0027\u0025\u0064\u0027\u0020\u006fu\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006e\u0067\u0065",i );};_ga :=_gff [i ];return int (_ga +Sign (_ga )*0.5),nil ;};func (_bc *NumSlice )Add (v float32 ){*_bc =append (*_bc ,v )};func (_ff IntSlice )Size ()int {return len (_ff )};func Ceil (numerator ,denominator int )int {if numerator %denominator ==0{return numerator /denominator ;};return (numerator /denominator )+1;};func (_gc NumSlice )Get (i int )(float32 ,error ){if i < 0||i > len (_gc )-1{return 0,_a .Errorf ("\u004e\u0075\u006dS\u006c\u0069\u0063\u0065\u002e\u0047\u0065\u0074","\u0069n\u0064\u0065\u0078\u003a\u0020\u0027\u0025\u0064\u0027\u0020\u006fu\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006e\u0067\u0065",i );};return _gc [i ],nil ;};func (_ae *Stack )Push (v interface{}){_ae .Data =append (_ae .Data ,v )};type IntSlice []int ;func NewNumSlice (i int )*NumSlice {_b :=NumSlice (make ([]float32 ,i ));return &_b };
|
||||
package basic ;import _da "github.com/unidoc/unipdf/v3/internal/jbig2/errors";type Stack struct{Data []interface{};Aux *Stack ;};func (_gf IntSlice )Get (index int )(int ,error ){if index > len (_gf )-1{return 0,_da .Errorf ("\u0049\u006e\u0074S\u006c\u0069\u0063\u0065\u002e\u0047\u0065\u0074","\u0069\u006e\u0064\u0065x:\u0020\u0025\u0064\u0020\u006f\u0075\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006eg\u0065",index );};return _gf [index ],nil ;};func (_ac NumSlice )Get (i int )(float32 ,error ){if i < 0||i > len (_ac )-1{return 0,_da .Errorf ("\u004e\u0075\u006dS\u006c\u0069\u0063\u0065\u002e\u0047\u0065\u0074","\u0069n\u0064\u0065\u0078\u003a\u0020\u0027\u0025\u0064\u0027\u0020\u006fu\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006e\u0067\u0065",i );};return _ac [i ],nil ;};func NewNumSlice (i int )*NumSlice {_ed :=NumSlice (make ([]float32 ,i ));return &_ed };func (_ee IntSlice )Size ()int {return len (_ee )};func Max (x ,y int )int {if x > y {return x ;};return y ;};func (_eeb NumSlice )GetIntSlice ()[]int {_cdd :=make ([]int ,len (_eeb ));for _gg ,_bb :=range _eeb {_cdd [_gg ]=int (_bb );};return _cdd ;};func Abs (v int )int {if v > 0{return v ;};return -v ;};func (_ad NumSlice )GetInt (i int )(int ,error ){const _fd ="\u0047\u0065\u0074\u0049\u006e\u0074";if i < 0||i > len (_ad )-1{return 0,_da .Errorf (_fd ,"\u0069n\u0064\u0065\u0078\u003a\u0020\u0027\u0025\u0064\u0027\u0020\u006fu\u0074\u0020\u006f\u0066\u0020\u0072\u0061\u006e\u0067\u0065",i );};_cb :=_ad [i ];return int (_cb +Sign (_cb )*0.5),nil ;};func (_dcb *Stack )Pop ()(_gd interface{},_gfa bool ){_gd ,_gfa =_dcb .peek ();if !_gfa {return nil ,_gfa ;};_dcb .Data =_dcb .Data [:_dcb .top ()];return _gd ,true ;};func (_cd *NumSlice )Add (v float32 ){*_cd =append (*_cd ,v )};func (_ged *Stack )Push (v interface{}){_ged .Data =append (_ged .Data ,v )};type IntsMap map[uint64 ][]int ;func (_gb IntsMap )Delete (key uint64 ){delete (_gb ,key )};func (_b *IntSlice )Copy ()*IntSlice {_dc :=IntSlice (make ([]int ,len (*_b )));copy (_dc ,*_b );return &_dc ;};func (_ab *Stack )top ()int {return len (_ab .Data )-1};func (_e IntsMap )Add (key uint64 ,value int ){_e [key ]=append (_e [key ],value )};func (_gbc *Stack )Len ()int {return len (_gbc .Data )};func Min (x ,y int )int {if x < y {return x ;};return y ;};func Ceil (numerator ,denominator int )int {if numerator %denominator ==0{return numerator /denominator ;};return (numerator /denominator )+1;};func (_bd *Stack )peek ()(interface{},bool ){_cbg :=_bd .top ();if _cbg ==-1{return nil ,false ;};return _bd .Data [_cbg ],true ;};func Sign (v float32 )float32 {if v >=0.0{return 1.0;};return -1.0;};func (_fc IntsMap )GetSlice (key uint64 )([]int ,bool ){_a ,_dad :=_fc [key ];if !_dad {return nil ,false ;};return _a ,true ;};type IntSlice []int ;func NewIntSlice (i int )*IntSlice {_dg :=IntSlice (make ([]int ,i ));return &_dg };func (_ff *IntSlice )Add (v int )error {if _ff ==nil {return _da .Error ("\u0049\u006e\u0074S\u006c\u0069\u0063\u0065\u002e\u0041\u0064\u0064","\u0073\u006c\u0069\u0063\u0065\u0020\u006e\u006f\u0074\u0020\u0064\u0065f\u0069\u006e\u0065\u0064");};*_ff =append (*_ff ,v );return nil ;};func (_fdd *Stack )Peek ()(_be interface{},_eee bool ){return _fdd .peek ()};func (_f IntsMap )Get (key uint64 )(int ,bool ){_g ,_c :=_f [key ];if !_c {return 0,false ;};if len (_g )==0{return 0,false ;};return _g [0],true ;};func (_ge *NumSlice )AddInt (v int ){*_ge =append (*_ge ,float32 (v ))};type NumSlice []float32 ;
|
||||
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|
||||
// Use of this source code is governed by the UniDoc End User License Agreement
|
||||
// terms that can be accessed at https://unidoc.io/eula/
|
||||
|
||||
package decoder ;import (_g "github.com/unidoc/unipdf/v3/internal/bitwise";_ae "github.com/unidoc/unipdf/v3/internal/jbig2/bitmap";_f "github.com/unidoc/unipdf/v3/internal/jbig2/document";_ad "github.com/unidoc/unipdf/v3/internal/jbig2/errors";_a "image";);func (_cd *Decoder )PageNumber ()(int ,error ){const _af ="\u0044e\u0063o\u0064\u0065\u0072\u002e\u0050a\u0067\u0065N\u0075\u006d\u0062\u0065\u0072";if _cd ._gd ==nil {return 0,_ad .Error (_af ,"d\u0065\u0063\u006f\u0064\u0065\u0072 \u006e\u006f\u0074\u0020\u0069\u006e\u0069\u0074\u0069a\u006c\u0069\u007ae\u0064 \u0079\u0065\u0074");};return int (_cd ._gd .NumberOfPages ),nil ;};func (_cc *Decoder )DecodePage (pageNumber int )([]byte ,error ){return _cc .decodePage (pageNumber )};type Parameters struct{UnpaddedData bool ;Color _ae .Color ;};func (_db *Decoder )decodePage (_cb int )([]byte ,error ){const _gee ="\u0064\u0065\u0063\u006f\u0064\u0065\u0050\u0061\u0067\u0065";if _cb < 0{return nil ,_ad .Errorf (_gee ,"\u0069n\u0076\u0061\u006c\u0069d\u0020\u0070\u0061\u0067\u0065 \u006eu\u006db\u0065\u0072\u003a\u0020\u0027\u0025\u0064'",_cb );};if _cb > int (_db ._gd .NumberOfPages ){return nil ,_ad .Errorf (_gee ,"p\u0061\u0067\u0065\u003a\u0020\u0027%\u0064\u0027\u0020\u006e\u006f\u0074 \u0066\u006f\u0075\u006e\u0064\u0020\u0069n\u0020\u0074\u0068\u0065\u0020\u0064\u0065\u0063\u006f\u0064e\u0072",_cb );};_ec ,_dd :=_db ._gd .GetPage (_cb );if _dd !=nil {return nil ,_ad .Wrap (_dd ,_gee ,"");};_ada ,_dd :=_ec .GetBitmap ();if _dd !=nil {return nil ,_ad .Wrap (_dd ,_gee ,"");};_ada .InverseData ();if !_db ._e .UnpaddedData {return _ada .Data ,nil ;};return _ada .GetUnpaddedData ();};func (_ed *Decoder )DecodeNextPage ()([]byte ,error ){_ed ._fc ++;_ge :=_ed ._fc ;return _ed .decodePage (_ge );};func Decode (input []byte ,parameters Parameters ,globals *_f .Globals )(*Decoder ,error ){_fa :=_g .NewReader (input );_gb ,_fb :=_f .DecodeDocument (_fa ,globals );if _fb !=nil {return nil ,_fb ;};return &Decoder {_c :_fa ,_gd :_gb ,_e :parameters },nil ;};func (_ac *Decoder )DecodePageImage (pageNumber int )(_a .Image ,error ){const _d ="\u0064\u0065\u0063od\u0065\u0072\u002e\u0044\u0065\u0063\u006f\u0064\u0065\u0050\u0061\u0067\u0065\u0049\u006d\u0061\u0067\u0065";_fe ,_ea :=_ac .decodePageImage (pageNumber );if _ea !=nil {return nil ,_ad .Wrap (_ea ,_d ,"");};return _fe ,nil ;};func (_gda *Decoder )decodePageImage (_adf int )(_a .Image ,error ){const _cg ="\u0064e\u0063o\u0064\u0065\u0050\u0061\u0067\u0065\u0049\u006d\u0061\u0067\u0065";if _adf < 0{return nil ,_ad .Errorf (_cg ,"\u0069n\u0076\u0061\u006c\u0069d\u0020\u0070\u0061\u0067\u0065 \u006eu\u006db\u0065\u0072\u003a\u0020\u0027\u0025\u0064'",_adf );};if _adf > int (_gda ._gd .NumberOfPages ){return nil ,_ad .Errorf (_cg ,"p\u0061\u0067\u0065\u003a\u0020\u0027%\u0064\u0027\u0020\u006e\u006f\u0074 \u0066\u006f\u0075\u006e\u0064\u0020\u0069n\u0020\u0074\u0068\u0065\u0020\u0064\u0065\u0063\u006f\u0064e\u0072",_adf );};_acd ,_fg :=_gda ._gd .GetPage (_adf );if _fg !=nil {return nil ,_ad .Wrap (_fg ,_cg ,"");};_dc ,_fg :=_acd .GetBitmap ();if _fg !=nil {return nil ,_ad .Wrap (_fg ,_cg ,"");};return _dc .ToImage (),nil ;};type Decoder struct{_c _g .StreamReader ;_gd *_f .Document ;_fc int ;_e Parameters ;};
|
||||
package decoder ;import (_c "github.com/unidoc/unipdf/v3/internal/bitwise";_e "github.com/unidoc/unipdf/v3/internal/jbig2/bitmap";_b "github.com/unidoc/unipdf/v3/internal/jbig2/document";_f "github.com/unidoc/unipdf/v3/internal/jbig2/errors";_a "image";);func (_bf *Decoder )DecodePageImage (pageNumber int )(_a .Image ,error ){const _fa ="\u0064\u0065\u0063od\u0065\u0072\u002e\u0044\u0065\u0063\u006f\u0064\u0065\u0050\u0061\u0067\u0065\u0049\u006d\u0061\u0067\u0065";_bg ,_gb :=_bf .decodePageImage (pageNumber );if _gb !=nil {return nil ,_f .Wrap (_gb ,_fa ,"");};return _bg ,nil ;};func (_ga *Decoder )DecodePage (pageNumber int )([]byte ,error ){return _ga .decodePage (pageNumber )};type Parameters struct{UnpaddedData bool ;Color _e .Color ;};type Decoder struct{_d _c .StreamReader ;_fg *_b .Document ;_ae int ;_eb Parameters ;};func (_ac *Decoder )PageNumber ()(int ,error ){const _af ="\u0044e\u0063o\u0064\u0065\u0072\u002e\u0050a\u0067\u0065N\u0075\u006d\u0062\u0065\u0072";if _ac ._fg ==nil {return 0,_f .Error (_af ,"d\u0065\u0063\u006f\u0064\u0065\u0072 \u006e\u006f\u0074\u0020\u0069\u006e\u0069\u0074\u0069a\u006c\u0069\u007ae\u0064 \u0079\u0065\u0074");};return int (_ac ._fg .NumberOfPages ),nil ;};func (_aff *Decoder )decodePage (_ad int )([]byte ,error ){const _be ="\u0064\u0065\u0063\u006f\u0064\u0065\u0050\u0061\u0067\u0065";if _ad < 0{return nil ,_f .Errorf (_be ,"\u0069n\u0076\u0061\u006c\u0069d\u0020\u0070\u0061\u0067\u0065 \u006eu\u006db\u0065\u0072\u003a\u0020\u0027\u0025\u0064'",_ad );};if _ad > int (_aff ._fg .NumberOfPages ){return nil ,_f .Errorf (_be ,"p\u0061\u0067\u0065\u003a\u0020\u0027%\u0064\u0027\u0020\u006e\u006f\u0074 \u0066\u006f\u0075\u006e\u0064\u0020\u0069n\u0020\u0074\u0068\u0065\u0020\u0064\u0065\u0063\u006f\u0064e\u0072",_ad );};_fd ,_adb :=_aff ._fg .GetPage (_ad );if _adb !=nil {return nil ,_f .Wrap (_adb ,_be ,"");};_gd ,_adb :=_fd .GetBitmap ();if _adb !=nil {return nil ,_f .Wrap (_adb ,_be ,"");};_gd .InverseData ();if !_aff ._eb .UnpaddedData {return _gd .Data ,nil ;};return _gd .GetUnpaddedData ();};func (_fb *Decoder )DecodeNextPage ()([]byte ,error ){_fb ._ae ++;_gg :=_fb ._ae ;return _fb .decodePage (_gg );};func (_ca *Decoder )decodePageImage (_bc int )(_a .Image ,error ){const _da ="\u0064e\u0063o\u0064\u0065\u0050\u0061\u0067\u0065\u0049\u006d\u0061\u0067\u0065";if _bc < 0{return nil ,_f .Errorf (_da ,"\u0069n\u0076\u0061\u006c\u0069d\u0020\u0070\u0061\u0067\u0065 \u006eu\u006db\u0065\u0072\u003a\u0020\u0027\u0025\u0064'",_bc );};if _bc > int (_ca ._fg .NumberOfPages ){return nil ,_f .Errorf (_da ,"p\u0061\u0067\u0065\u003a\u0020\u0027%\u0064\u0027\u0020\u006e\u006f\u0074 \u0066\u006f\u0075\u006e\u0064\u0020\u0069n\u0020\u0074\u0068\u0065\u0020\u0064\u0065\u0063\u006f\u0064e\u0072",_bc );};_fe ,_dg :=_ca ._fg .GetPage (_bc );if _dg !=nil {return nil ,_f .Wrap (_dg ,_da ,"");};_fgf ,_dg :=_fe .GetBitmap ();if _dg !=nil {return nil ,_f .Wrap (_dg ,_da ,"");};return _fgf .ToImage (),nil ;};func Decode (input []byte ,parameters Parameters ,globals *_b .Globals )(*Decoder ,error ){_ada :=_c .NewReader (input );_fad ,_gc :=_b .DecodeDocument (_ada ,globals );if _gc !=nil {return nil ,_gc ;};return &Decoder {_d :_ada ,_fg :_fad ,_eb :parameters },nil ;};
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// Use of this source code is governed by the UniDoc End User License Agreement
|
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// terms that can be accessed at https://unidoc.io/eula/
|
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|
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package errors ;import _ef "fmt";type processError struct{_eg string ;_f string ;_g string ;_ff error ;};func Errorf (processName ,message string ,arguments ...interface{})error {return _a (_ef .Sprintf (message ,arguments ...),processName );};func (_c *processError )Error ()string {var _b string ;if _c ._eg !=""{_b =_c ._eg ;};_b +="\u0050r\u006f\u0063\u0065\u0073\u0073\u003a "+_c ._f ;if _c ._g !=""{_b +="\u0020\u004d\u0065\u0073\u0073\u0061\u0067\u0065\u003a\u0020"+_c ._g ;};if _c ._ff !=nil {_b +="\u002e\u0020"+_c ._ff .Error ();};return _b ;};func Wrap (err error ,processName ,message string )error {if _fa ,_ec :=err .(*processError );_ec {_fa ._eg ="";};_cf :=_a (message ,processName );_cf ._ff =err ;return _cf ;};func _a (_ae ,_af string )*processError {return &processError {_eg :"\u005b\u0055\u006e\u0069\u0050\u0044\u0046\u005d",_g :_ae ,_f :_af };};func Wrapf (err error ,processName ,message string ,arguments ...interface{})error {if _gc ,_fd :=err .(*processError );_fd {_gc ._eg ="";};_ag :=_a (_ef .Sprintf (message ,arguments ...),processName );_ag ._ff =err ;return _ag ;};func Error (processName ,message string )error {return _a (message ,processName )};
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package errors ;import _g "fmt";func Wrapf (err error ,processName ,message string ,arguments ...interface{})error {if _fb ,_ba :=err .(*processError );_ba {_fb ._d ="";};_fbg :=_dd (_g .Sprintf (message ,arguments ...),processName );_fbg ._a =err ;return _fbg ;};func Wrap (err error ,processName ,message string )error {if _dg ,_ee :=err .(*processError );_ee {_dg ._d ="";};_ec :=_dd (message ,processName );_ec ._a =err ;return _ec ;};type processError struct{_d string ;_e string ;_f string ;_a error ;};func Error (processName ,message string )error {return _dd (message ,processName )};func (_da *processError )Error ()string {var _c string ;if _da ._d !=""{_c =_da ._d ;};_c +="\u0050r\u006f\u0063\u0065\u0073\u0073\u003a "+_da ._e ;if _da ._f !=""{_c +="\u0020\u004d\u0065\u0073\u0073\u0061\u0067\u0065\u003a\u0020"+_da ._f ;};if _da ._a !=nil {_c +="\u002e\u0020"+_da ._a .Error ();};return _c ;};func Errorf (processName ,message string ,arguments ...interface{})error {return _dd (_g .Sprintf (message ,arguments ...),processName );};func _dd (_df ,_bf string )*processError {return &processError {_d :"\u005b\u0055\u006e\u0069\u0050\u0044\u0046\u005d",_f :_df ,_e :_bf };};
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@ -9,4 +9,4 @@
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// Use of this source code is governed by the UniDoc End User License Agreement
|
||||
// terms that can be accessed at https://unidoc.io/eula/
|
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|
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package jbig2 ;import (_b "github.com/unidoc/unipdf/v3/internal/bitwise";_a "github.com/unidoc/unipdf/v3/internal/jbig2/decoder";_bf "github.com/unidoc/unipdf/v3/internal/jbig2/document";_be "github.com/unidoc/unipdf/v3/internal/jbig2/document/segments";_ba "github.com/unidoc/unipdf/v3/internal/jbig2/errors";_g "sort";);func DecodeGlobals (encoded []byte )(Globals ,error ){const _c ="\u0044\u0065\u0063\u006f\u0064\u0065\u0047\u006c\u006f\u0062\u0061\u006c\u0073";_ec :=_b .NewReader (encoded );_ca ,_ece :=_bf .DecodeDocument (_ec ,nil );if _ece !=nil {return nil ,_ba .Wrap (_ece ,_c ,"");};if _ca .GlobalSegments ==nil ||(_ca .GlobalSegments .Segments ==nil ){return nil ,_ba .Error (_c ,"\u006eo\u0020\u0067\u006c\u006f\u0062\u0061\u006c\u0020\u0073\u0065\u0067m\u0065\u006e\u0074\u0073\u0020\u0066\u006f\u0075\u006e\u0064");};_db :=Globals {};for _ ,_bab :=range _ca .GlobalSegments .Segments {_db [int (_bab .SegmentNumber )]=_bab ;};return _db ,nil ;};func DecodeBytes (encoded []byte ,parameters _a .Parameters ,globals ...Globals )([]byte ,error ){var _f Globals ;if len (globals )> 0{_f =globals [0];};_d ,_gc :=_a .Decode (encoded ,parameters ,_f .ToDocumentGlobals ());if _gc !=nil {return nil ,_gc ;};return _d .DecodeNextPage ();};func (_fb Globals )ToDocumentGlobals ()*_bf .Globals {if _fb ==nil {return nil ;};_bfe :=[]*_be .Header {};for _ ,_fg :=range _fb {_bfe =append (_bfe ,_fg );};_g .Slice (_bfe ,func (_ee ,_ce int )bool {return _bfe [_ee ].SegmentNumber < _bfe [_ce ].SegmentNumber });return &_bf .Globals {Segments :_bfe };};type Globals map[int ]*_be .Header ;
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package jbig2 ;import (_g "github.com/unidoc/unipdf/v3/internal/bitwise";_d "github.com/unidoc/unipdf/v3/internal/jbig2/decoder";_df "github.com/unidoc/unipdf/v3/internal/jbig2/document";_c "github.com/unidoc/unipdf/v3/internal/jbig2/document/segments";_da "github.com/unidoc/unipdf/v3/internal/jbig2/errors";_b "sort";);type Globals map[int ]*_c .Header ;func DecodeBytes (encoded []byte ,parameters _d .Parameters ,globals ...Globals )([]byte ,error ){var _bd Globals ;if len (globals )> 0{_bd =globals [0];};_e ,_gd :=_d .Decode (encoded ,parameters ,_bd .ToDocumentGlobals ());if _gd !=nil {return nil ,_gd ;};return _e .DecodeNextPage ();};func DecodeGlobals (encoded []byte )(Globals ,error ){const _dc ="\u0044\u0065\u0063\u006f\u0064\u0065\u0047\u006c\u006f\u0062\u0061\u006c\u0073";_a :=_g .NewReader (encoded );_bdd ,_ed :=_df .DecodeDocument (_a ,nil );if _ed !=nil {return nil ,_da .Wrap (_ed ,_dc ,"");};if _bdd .GlobalSegments ==nil ||(_bdd .GlobalSegments .Segments ==nil ){return nil ,_da .Error (_dc ,"\u006eo\u0020\u0067\u006c\u006f\u0062\u0061\u006c\u0020\u0073\u0065\u0067m\u0065\u006e\u0074\u0073\u0020\u0066\u006f\u0075\u006e\u0064");};_ec :=Globals {};for _ ,_de :=range _bdd .GlobalSegments .Segments {_ec [int (_de .SegmentNumber )]=_de ;};return _ec ,nil ;};func (_af Globals )ToDocumentGlobals ()*_df .Globals {if _af ==nil {return nil ;};_eb :=[]*_c .Header {};for _ ,_ee :=range _af {_eb =append (_eb ,_ee );};_b .Slice (_eb ,func (_ae ,_bg int )bool {return _eb [_ae ].SegmentNumber < _eb [_bg ].SegmentNumber });return &_df .Globals {Segments :_eb };};
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@ -9,4 +9,4 @@
|
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// Use of this source code is governed by the UniDoc End User License Agreement
|
||||
// terms that can be accessed at https://unidoc.io/eula/
|
||||
|
||||
package sampling ;import (_cb "github.com/unidoc/unipdf/v3/internal/bitwise";_bb "github.com/unidoc/unipdf/v3/internal/imageutil";_c "io";);func ResampleUint32 (data []uint32 ,bitsPerInputSample int ,bitsPerOutputSample int )[]uint32 {var _ec []uint32 ;_bfg :=bitsPerOutputSample ;var _bg uint32 ;var _a uint32 ;_af :=0;_fdb :=0;_cef :=0;for _cef < len (data ){if _af > 0{_gfe :=_af ;if _bfg < _gfe {_gfe =_bfg ;};_bg =(_bg <<uint (_gfe ))|uint32 (_a >>uint (bitsPerInputSample -_gfe ));_af -=_gfe ;if _af > 0{_a =_a <<uint (_gfe );}else {_a =0;};_bfg -=_gfe ;if _bfg ==0{_ec =append (_ec ,_bg );_bfg =bitsPerOutputSample ;_bg =0;_fdb ++;};}else {_db :=data [_cef ];_cef ++;_ca :=bitsPerInputSample ;if _bfg < _ca {_ca =_bfg ;};_af =bitsPerInputSample -_ca ;_bg =(_bg <<uint (_ca ))|uint32 (_db >>uint (_af ));if _ca < bitsPerInputSample {_a =_db <<uint (_ca );};_bfg -=_ca ;if _bfg ==0{_ec =append (_ec ,_bg );_bfg =bitsPerOutputSample ;_bg =0;_fdb ++;};};};for _af >=bitsPerOutputSample {_ecd :=_af ;if _bfg < _ecd {_ecd =_bfg ;};_bg =(_bg <<uint (_ecd ))|uint32 (_a >>uint (bitsPerInputSample -_ecd ));_af -=_ecd ;if _af > 0{_a =_a <<uint (_ecd );}else {_a =0;};_bfg -=_ecd ;if _bfg ==0{_ec =append (_ec ,_bg );_bfg =bitsPerOutputSample ;_bg =0;_fdb ++;};};if _bfg > 0&&_bfg < bitsPerOutputSample {_bg <<=uint (_bfg );_ec =append (_ec ,_bg );};return _ec ;};func (_gcf *Reader )ReadSamples (samples []uint32 )(_cfe error ){for _bc :=0;_bc < len (samples );_bc ++{samples [_bc ],_cfe =_gcf .ReadSample ();if _cfe !=nil {return _cfe ;};};return nil ;};type SampleWriter interface{WriteSample (_ee uint32 )error ;WriteSamples (_ef []uint32 )error ;};func (_bbe *Writer )WriteSamples (samples []uint32 )error {for _bfe :=0;_bfe < len (samples );_bfe ++{if _fa :=_bbe .WriteSample (samples [_bfe ]);_fa !=nil {return _fa ;};};return nil ;};func (_bca *Writer )WriteSample (sample uint32 )error {if _ ,_bgb :=_bca ._fe .WriteBits (uint64 (sample ),_bca ._ac .BitsPerComponent );_bgb !=nil {return _bgb ;};_bca ._aa --;if _bca ._aa ==0{_bca ._aa =_bca ._ac .ColorComponents ;_bca ._ge ++;};if _bca ._ge ==_bca ._ac .Width {if _bca ._fg {_bca ._fe .FinishByte ();};_bca ._ge =0;};return nil ;};func NewReader (img _bb .ImageBase )*Reader {return &Reader {_da :_cb .NewReader (img .Data ),_d :img ,_gc :img .ColorComponents ,_be :img .BytesPerLine *8!=img .ColorComponents *img .BitsPerComponent *img .Width };};func (_f *Reader )ReadSample ()(uint32 ,error ){if _f ._g ==_f ._d .Height {return 0,_c .EOF ;};_ced ,_cf :=_f ._da .ReadBits (byte (_f ._d .BitsPerComponent ));if _cf !=nil {return 0,_cf ;};_f ._gc --;if _f ._gc ==0{_f ._gc =_f ._d .ColorComponents ;_f ._bf ++;};if _f ._bf ==_f ._d .Width {if _f ._be {_f ._da .ConsumeRemainingBits ();};_f ._bf =0;_f ._g ++;};return uint32 (_ced ),nil ;};type SampleReader interface{ReadSample ()(uint32 ,error );ReadSamples (_ce []uint32 )error ;};type Reader struct{_d _bb .ImageBase ;_da *_cb .Reader ;_bf ,_g ,_gc int ;_be bool ;};type Writer struct{_ac _bb .ImageBase ;_fe *_cb .Writer ;_ge ,_aa int ;_fg bool ;};func NewWriter (img _bb .ImageBase )*Writer {return &Writer {_fe :_cb .NewWriterMSB (img .Data ),_ac :img ,_aa :img .ColorComponents ,_fg :img .BytesPerLine *8!=img .ColorComponents *img .BitsPerComponent *img .Width };};func ResampleBytes (data []byte ,bitsPerSample int )[]uint32 {var _beg []uint32 ;_cg :=bitsPerSample ;var _gf uint32 ;var _fd byte ;_bff :=0;_daa :=0;_e :=0;for _e < len (data ){if _bff > 0{_eg :=_bff ;if _cg < _eg {_eg =_cg ;};_gf =(_gf <<uint (_eg ))|uint32 (_fd >>uint (8-_eg ));_bff -=_eg ;if _bff > 0{_fd =_fd <<uint (_eg );}else {_fd =0;};_cg -=_eg ;if _cg ==0{_beg =append (_beg ,_gf );_cg =bitsPerSample ;_gf =0;_daa ++;};}else {_gcg :=data [_e ];_e ++;_dac :=8;if _cg < _dac {_dac =_cg ;};_bff =8-_dac ;_gf =(_gf <<uint (_dac ))|uint32 (_gcg >>uint (_bff ));if _dac < 8{_fd =_gcg <<uint (_dac );};_cg -=_dac ;if _cg ==0{_beg =append (_beg ,_gf );_cg =bitsPerSample ;_gf =0;_daa ++;};};};for _bff >=bitsPerSample {_ceg :=_bff ;if _cg < _ceg {_ceg =_cg ;};_gf =(_gf <<uint (_ceg ))|uint32 (_fd >>uint (8-_ceg ));_bff -=_ceg ;if _bff > 0{_fd =_fd <<uint (_ceg );}else {_fd =0;};_cg -=_ceg ;if _cg ==0{_beg =append (_beg ,_gf );_cg =bitsPerSample ;_gf =0;_daa ++;};};return _beg ;};
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package sampling ;import (_a "github.com/unidoc/unipdf/v3/internal/bitwise";_dc "github.com/unidoc/unipdf/v3/internal/imageutil";_f "io";);func ResampleUint32 (data []uint32 ,bitsPerInputSample int ,bitsPerOutputSample int )[]uint32 {var _bb []uint32 ;_ab :=bitsPerOutputSample ;var _gg uint32 ;var _df uint32 ;_fad :=0;_dbb :=0;_gc :=0;for _gc < len (data ){if _fad > 0{_dba :=_fad ;if _ab < _dba {_dba =_ab ;};_gg =(_gg <<uint (_dba ))|uint32 (_df >>uint (bitsPerInputSample -_dba ));_fad -=_dba ;if _fad > 0{_df =_df <<uint (_dba );}else {_df =0;};_ab -=_dba ;if _ab ==0{_bb =append (_bb ,_gg );_ab =bitsPerOutputSample ;_gg =0;_dbb ++;};}else {_bg :=data [_gc ];_gc ++;_fec :=bitsPerInputSample ;if _ab < _fec {_fec =_ab ;};_fad =bitsPerInputSample -_fec ;_gg =(_gg <<uint (_fec ))|uint32 (_bg >>uint (_fad ));if _fec < bitsPerInputSample {_df =_bg <<uint (_fec );};_ab -=_fec ;if _ab ==0{_bb =append (_bb ,_gg );_ab =bitsPerOutputSample ;_gg =0;_dbb ++;};};};for _fad >=bitsPerOutputSample {_ace :=_fad ;if _ab < _ace {_ace =_ab ;};_gg =(_gg <<uint (_ace ))|uint32 (_df >>uint (bitsPerInputSample -_ace ));_fad -=_ace ;if _fad > 0{_df =_df <<uint (_ace );}else {_df =0;};_ab -=_ace ;if _ab ==0{_bb =append (_bb ,_gg );_ab =bitsPerOutputSample ;_gg =0;_dbb ++;};};if _ab > 0&&_ab < bitsPerOutputSample {_gg <<=uint (_ab );_bb =append (_bb ,_gg );};return _bb ;};func (_bd *Writer )WriteSample (sample uint32 )error {if _ ,_bac :=_bd ._ca .WriteBits (uint64 (sample ),_bd ._gf .BitsPerComponent );_bac !=nil {return _bac ;};_bd ._bbg --;if _bd ._bbg ==0{_bd ._bbg =_bd ._gf .ColorComponents ;_bd ._ff ++;};if _bd ._ff ==_bd ._gf .Width {if _bd ._ef {_bd ._ca .FinishByte ();};_bd ._ff =0;};return nil ;};func NewReader (img _dc .ImageBase )*Reader {return &Reader {_fb :_a .NewReader (img .Data ),_c :img ,_fe :img .ColorComponents ,_cg :img .BytesPerLine *8!=img .ColorComponents *img .BitsPerComponent *img .Width };};func (_da *Writer )WriteSamples (samples []uint32 )error {for _bf :=0;_bf < len (samples );_bf ++{if _cf :=_da .WriteSample (samples [_bf ]);_cf !=nil {return _cf ;};};return nil ;};func ResampleBytes (data []byte ,bitsPerSample int )[]uint32 {var _ee []uint32 ;_eea :=bitsPerSample ;var _g uint32 ;var _ba byte ;_fa :=0;_ec :=0;_afb :=0;for _afb < len (data ){if _fa > 0{_fc :=_fa ;if _eea < _fc {_fc =_eea ;};_g =(_g <<uint (_fc ))|uint32 (_ba >>uint (8-_fc ));_fa -=_fc ;if _fa > 0{_ba =_ba <<uint (_fc );}else {_ba =0;};_eea -=_fc ;if _eea ==0{_ee =append (_ee ,_g );_eea =bitsPerSample ;_g =0;_ec ++;};}else {_fg :=data [_afb ];_afb ++;_bc :=8;if _eea < _bc {_bc =_eea ;};_fa =8-_bc ;_g =(_g <<uint (_bc ))|uint32 (_fg >>uint (_fa ));if _bc < 8{_ba =_fg <<uint (_bc );};_eea -=_bc ;if _eea ==0{_ee =append (_ee ,_g );_eea =bitsPerSample ;_g =0;_ec ++;};};};for _fa >=bitsPerSample {_aff :=_fa ;if _eea < _aff {_aff =_eea ;};_g =(_g <<uint (_aff ))|uint32 (_ba >>uint (8-_aff ));_fa -=_aff ;if _fa > 0{_ba =_ba <<uint (_aff );}else {_ba =0;};_eea -=_aff ;if _eea ==0{_ee =append (_ee ,_g );_eea =bitsPerSample ;_g =0;_ec ++;};};return _ee ;};type SampleWriter interface{WriteSample (_afbf uint32 )error ;WriteSamples (_afc []uint32 )error ;};type Reader struct{_c _dc .ImageBase ;_fb *_a .Reader ;_ac ,_cc ,_fe int ;_cg bool ;};func NewWriter (img _dc .ImageBase )*Writer {return &Writer {_ca :_a .NewWriterMSB (img .Data ),_gf :img ,_bbg :img .ColorComponents ,_ef :img .BytesPerLine *8!=img .ColorComponents *img .BitsPerComponent *img .Width };};type SampleReader interface{ReadSample ()(uint32 ,error );ReadSamples (_e []uint32 )error ;};type Writer struct{_gf _dc .ImageBase ;_ca *_a .Writer ;_ff ,_bbg int ;_ef bool ;};func (_b *Reader )ReadSample ()(uint32 ,error ){if _b ._cc ==_b ._c .Height {return 0,_f .EOF ;};_db ,_af :=_b ._fb .ReadBits (byte (_b ._c .BitsPerComponent ));if _af !=nil {return 0,_af ;};_b ._fe --;if _b ._fe ==0{_b ._fe =_b ._c .ColorComponents ;_b ._ac ++;};if _b ._ac ==_b ._c .Width {if _b ._cg {_b ._fb .ConsumeRemainingBits ();};_b ._ac =0;_b ._cc ++;};return uint32 (_db ),nil ;};func (_dg *Reader )ReadSamples (samples []uint32 )(_eg error ){for _de :=0;_de < len (samples );_de ++{samples [_de ],_eg =_dg .ReadSample ();if _eg !=nil {return _eg ;};};return nil ;};
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// Use of this source code is governed by the UniDoc End User License Agreement
|
||||
// terms that can be accessed at https://unidoc.io/eula/
|
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|
||||
package transform ;import (_d "fmt";_g "github.com/unidoc/unipdf/v3/common";_b "math";);func (_acab *Matrix )Unrealistic ()bool {_eg ,_df ,_ec ,_cgc :=_b .Abs (_acab [0]),_b .Abs (_acab [1]),_b .Abs (_acab [3]),_b .Abs (_acab [4]);_bc :=_eg > _aef &&_cgc > _aef ;_bab :=_df > _aef &&_ec > _aef ;return !(_bc ||_bab );};type Matrix [9]float64 ;func (_ga *Matrix )ScalingFactorY ()float64 {return _b .Hypot (_ga [3],_ga [4])};func IdentityMatrix ()Matrix {return NewMatrix (1,0,0,1,0,0)};func (_de *Matrix )Clone ()Matrix {return NewMatrix (_de [0],_de [1],_de [3],_de [4],_de [6],_de [7])};func (_ab Point )Distance (b Point )float64 {return _b .Hypot (_ab .X -b .X ,_ab .Y -b .Y )};func (_bf Point )Interpolate (b Point ,t float64 )Point {return Point {X :(1-t )*_bf .X +t *b .X ,Y :(1-t )*_bf .Y +t *b .Y };};type Point struct{X float64 ;Y float64 ;};func ScaleMatrix (x ,y float64 )Matrix {return NewMatrix (x ,0,0,y ,0,0)};func (_ag *Matrix )ScalingFactorX ()float64 {return _b .Hypot (_ag [0],_ag [1])};func (_fce Point )Displace (delta Point )Point {return Point {_fce .X +delta .X ,_fce .Y +delta .Y }};func (_ba *Matrix )Shear (x ,y float64 ){_ba .Concat (ShearMatrix (x ,y ))};func (_gc *Matrix )Rotate (angle float64 ){_gc .Concat (RotationMatrix (angle ))};func (_aa *Matrix )Set (a ,b ,c ,d ,tx ,ty float64 ){_aa [0],_aa [1]=a ,b ;_aa [3],_aa [4]=c ,d ;_aa [6],_aa [7]=tx ,ty ;_aa .clampRange ();};func (_bcg *Point )transformByMatrix (_fg Matrix ){_bcg .X ,_bcg .Y =_fg .Transform (_bcg .X ,_bcg .Y )};func NewPoint (x ,y float64 )Point {return Point {X :x ,Y :y }};const _cd =1.0e-6;func NewMatrix (a ,b ,c ,d ,tx ,ty float64 )Matrix {_ad :=Matrix {a ,b ,0,c ,d ,0,tx ,ty ,1};_ad .clampRange ();return _ad ;};func (_fc *Point )Set (x ,y float64 ){_fc .X ,_fc .Y =x ,y };func (_fe *Point )Transform (a ,b ,c ,d ,tx ,ty float64 ){_dd :=NewMatrix (a ,b ,c ,d ,tx ,ty );_fe .transformByMatrix (_dd );};func RotationMatrix (angle float64 )Matrix {_gg :=_b .Cos (angle );_ggb :=_b .Sin (angle );return NewMatrix (_gg ,_ggb ,-_ggb ,_gg ,0,0);};const _ff =1e9;func (_bg Point )String ()string {return _d .Sprintf ("(\u0025\u002e\u0032\u0066\u002c\u0025\u002e\u0032\u0066\u0029",_bg .X ,_bg .Y );};func (_bd *Matrix )clampRange (){for _cfb ,_aca :=range _bd {if _aca > _ff {_g .Log .Debug ("\u0043L\u0041M\u0050\u003a\u0020\u0025\u0067\u0020\u002d\u003e\u0020\u0025\u0067",_aca ,_ff );_bd [_cfb ]=_ff ;}else if _aca < -_ff {_g .Log .Debug ("\u0043L\u0041M\u0050\u003a\u0020\u0025\u0067\u0020\u002d\u003e\u0020\u0025\u0067",_aca ,-_ff );_bd [_cfb ]=-_ff ;};};};func TranslationMatrix (tx ,ty float64 )Matrix {return NewMatrix (1,0,0,1,tx ,ty )};func (_edd *Matrix )Angle ()float64 {_fd :=_b .Atan2 (-_edd [1],_edd [0]);if _fd < 0.0{_fd +=2*_b .Pi ;};return _fd /_b .Pi *180.0;};func (_e *Matrix )Concat (b Matrix ){*_e =Matrix {b [0]*_e [0]+b [1]*_e [3],b [0]*_e [1]+b [1]*_e [4],0,b [3]*_e [0]+b [4]*_e [3],b [3]*_e [1]+b [4]*_e [4],0,b [6]*_e [0]+b [7]*_e [3]+_e [6],b [6]*_e [1]+b [7]*_e [4]+_e [7],1};_e .clampRange ();};func (_ac Matrix )Mult (b Matrix )Matrix {_ac .Concat (b );return _ac };func (_f Matrix )String ()string {_ae ,_fb ,_c ,_cg ,_ce ,_dg :=_f [0],_f [1],_f [3],_f [4],_f [6],_f [7];return _d .Sprintf ("\u005b\u00257\u002e\u0034\u0066\u002c%\u0037\u002e4\u0066\u002c\u0025\u0037\u002e\u0034\u0066\u002c%\u0037\u002e\u0034\u0066\u003a\u0025\u0037\u002e\u0034\u0066\u002c\u00257\u002e\u0034\u0066\u005d",_ae ,_fb ,_c ,_cg ,_ce ,_dg );};func ShearMatrix (x ,y float64 )Matrix {return NewMatrix (1,y ,x ,1,0,0)};const _aef =1e-6;func (_ed *Matrix )Scale (x ,y float64 ){_ed .Concat (ScaleMatrix (x ,y ))};func (_cgf *Matrix )Translation ()(float64 ,float64 ){return _cgf [6],_cgf [7]};func (_da *Matrix )Translate (x ,y float64 ){_da .Concat (TranslationMatrix (x ,y ))};func (_eda Point )Rotate (theta float64 )Point {_dc :=_b .Hypot (_eda .X ,_eda .Y );_cgg :=_b .Atan2 (_eda .Y ,_eda .X );_gb ,_fef :=_b .Sincos (_cgg +theta /180.0*_b .Pi );return Point {_dc *_fef ,_dc *_gb };};func (_ea *Matrix )Transform (x ,y float64 )(float64 ,float64 ){_cc :=x *_ea [0]+y *_ea [1]+_ea [6];_cf :=x *_ea [3]+y *_ea [4]+_ea [7];return _cc ,_cf ;};
|
||||
package transform ;import (_cb "fmt";_a "github.com/unidoc/unipdf/v3/common";_g "math";);func (_gc *Matrix )Shear (x ,y float64 ){_gc .Concat (ShearMatrix (x ,y ))};func (_ad *Matrix )Scale (x ,y float64 ){_ad .Concat (ScaleMatrix (x ,y ))};func (_cc Point )Displace (delta Point )Point {return Point {_cc .X +delta .X ,_cc .Y +delta .Y }};func (_eafg *Point )Set (x ,y float64 ){_eafg .X ,_eafg .Y =x ,y };func (_db *Point )transformByMatrix (_fff Matrix ){_db .X ,_db .Y =_fff .Transform (_db .X ,_db .Y )};func (_bg Point )String ()string {return _cb .Sprintf ("(\u0025\u002e\u0032\u0066\u002c\u0025\u002e\u0032\u0066\u0029",_bg .X ,_bg .Y );};type Point struct{X float64 ;Y float64 ;};func (_ge *Matrix )Translation ()(float64 ,float64 ){return _ge [6],_ge [7]};func (_ac *Matrix )Concat (b Matrix ){*_ac =Matrix {b [0]*_ac [0]+b [1]*_ac [3],b [0]*_ac [1]+b [1]*_ac [4],0,b [3]*_ac [0]+b [4]*_ac [3],b [3]*_ac [1]+b [4]*_ac [4],0,b [6]*_ac [0]+b [7]*_ac [3]+_ac [6],b [6]*_ac [1]+b [7]*_ac [4]+_ac [7],1};_ac .clampRange ();};func (_geg *Matrix )ScalingFactorX ()float64 {return _g .Hypot (_geg [0],_geg [1])};func NewPoint (x ,y float64 )Point {return Point {X :x ,Y :y }};func (_ca *Matrix )Translate (x ,y float64 ){_ca .Concat (TranslationMatrix (x ,y ))};func (_df *Matrix )clampRange (){for _dd ,_caf :=range _df {if _caf > _ce {_a .Log .Debug ("\u0043L\u0041M\u0050\u003a\u0020\u0025\u0067\u0020\u002d\u003e\u0020\u0025\u0067",_caf ,_ce );_df [_dd ]=_ce ;}else if _caf < -_ce {_a .Log .Debug ("\u0043L\u0041M\u0050\u003a\u0020\u0025\u0067\u0020\u002d\u003e\u0020\u0025\u0067",_caf ,-_ce );_df [_dd ]=-_ce ;};};};func (_fb *Matrix )Angle ()float64 {_eaf :=_g .Atan2 (-_fb [1],_fb [0]);if _eaf < 0.0{_eaf +=2*_g .Pi ;};return _eaf /_g .Pi *180.0;};func (_fe *Matrix )Transform (x ,y float64 )(float64 ,float64 ){_ab :=x *_fe [0]+y *_fe [1]+_fe [6];_adb :=x *_fe [3]+y *_fe [4]+_fe [7];return _ab ,_adb ;};func TranslationMatrix (tx ,ty float64 )Matrix {return NewMatrix (1,0,0,1,tx ,ty )};const _ggf =1.0e-6;func (_be *Matrix )Clone ()Matrix {return NewMatrix (_be [0],_be [1],_be [3],_be [4],_be [6],_be [7])};type Matrix [9]float64 ;func (_gcd Point )Interpolate (b Point ,t float64 )Point {return Point {X :(1-t )*_gcd .X +t *b .X ,Y :(1-t )*_gcd .Y +t *b .Y };};func (_ff *Matrix )Set (a ,b ,c ,d ,tx ,ty float64 ){_ff [0],_ff [1]=a ,b ;_ff [3],_ff [4]=c ,d ;_ff [6],_ff [7]=tx ,ty ;_ff .clampRange ();};func NewMatrix (a ,b ,c ,d ,tx ,ty float64 )Matrix {_cg :=Matrix {a ,b ,0,c ,d ,0,tx ,ty ,1};_cg .clampRange ();return _cg ;};func (_ga *Point )Transform (a ,b ,c ,d ,tx ,ty float64 ){_gbd :=NewMatrix (a ,b ,c ,d ,tx ,ty );_ga .transformByMatrix (_gbd );};const _ce =1e9;func (_af Point )Distance (b Point )float64 {return _g .Hypot (_af .X -b .X ,_af .Y -b .Y )};func (_ced Point )Rotate (theta float64 )Point {_fa :=_g .Hypot (_ced .X ,_ced .Y );_ba :=_g .Atan2 (_ced .Y ,_ced .X );_dae ,_dad :=_g .Sincos (_ba +theta /180.0*_g .Pi );return Point {_fa *_dad ,_fa *_dae };};func (_d Matrix )String ()string {_ea ,_cgd ,_f ,_fd ,_fg ,_ee :=_d [0],_d [1],_d [3],_d [4],_d [6],_d [7];return _cb .Sprintf ("\u005b\u00257\u002e\u0034\u0066\u002c%\u0037\u002e4\u0066\u002c\u0025\u0037\u002e\u0034\u0066\u002c%\u0037\u002e\u0034\u0066\u003a\u0025\u0037\u002e\u0034\u0066\u002c\u00257\u002e\u0034\u0066\u005d",_ea ,_cgd ,_f ,_fd ,_fg ,_ee );};func IdentityMatrix ()Matrix {return NewMatrix (1,0,0,1,0,0)};const _cba =1e-6;func (_b *Matrix )Rotate (angle float64 ){_b .Concat (RotationMatrix (angle ))};func ScaleMatrix (x ,y float64 )Matrix {return NewMatrix (x ,0,0,y ,0,0)};func (_dfb *Matrix )Unrealistic ()bool {_da ,_gg ,_fga ,_bd :=_g .Abs (_dfb [0]),_g .Abs (_dfb [1]),_g .Abs (_dfb [3]),_g .Abs (_dfb [4]);_ddc :=_da > _cba &&_bd > _cba ;_ed :=_gg > _cba &&_fga > _cba ;return !(_ddc ||_ed );};func RotationMatrix (angle float64 )Matrix {_e :=_g .Cos (angle );_ae :=_g .Sin (angle );return NewMatrix (_e ,_ae ,-_ae ,_e ,0,0);};func (_gb *Matrix )ScalingFactorY ()float64 {return _g .Hypot (_gb [3],_gb [4])};func (_dg Matrix )Mult (b Matrix )Matrix {_dg .Concat (b );return _dg };func ShearMatrix (x ,y float64 )Matrix {return NewMatrix (1,y ,x ,1,0,0)};
|
||||
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4592
model/model.go
4592
model/model.go
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@ -10,75 +10,75 @@
|
||||
// terms that can be accessed at https://unidoc.io/eula/
|
||||
|
||||
// Package sighandler implements digital signature handlers for PDF signature validation and signing.
|
||||
package sighandler ;import (_d "bytes";_ae "crypto";_ga "crypto/rand";_ac "crypto/rsa";_dd "crypto/x509";_aa "crypto/x509/pkix";_cb "encoding/asn1";_f "errors";_db "fmt";_gc "github.com/unidoc/pkcs7";_ca "github.com/unidoc/timestamp";_aeg "github.com/unidoc/unipdf/v3/core";_cc "github.com/unidoc/unipdf/v3/model";_eg "hash";_c "io";_ed "io/ioutil";_g "net/http";_e "time";);type adobeX509RSASHA1 struct{_cca *_ac .PrivateKey ;_gad *_dd .Certificate ;_ce SignFunc ;};func (_agf *docTimeStamp )getCertificate (_ebcc *_cc .PdfSignature )(*_dd .Certificate ,error ){var _bfab []byte ;switch _ef :=_ebcc .Cert .(type ){case *_aeg .PdfObjectString :_bfab =_ef .Bytes ();case *_aeg .PdfObjectArray :if _ef .Len ()==0{return nil ,_f .New ("\u006e\u006f\u0020s\u0069\u0067\u006e\u0061t\u0075\u0072\u0065\u0020\u0063\u0065\u0072t\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0073\u0020\u0066\u006f\u0075\u006e\u0064");};for _ ,_ada :=range _ef .Elements (){_abae ,_dda :=_aeg .GetString (_ada );if !_dda {return nil ,_db .Errorf ("\u0069\u006ev\u0061\u006c\u0069\u0064\u0020\u0063\u0065\u0072\u0074\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062j\u0065\u0063\u0074\u0020\u0074\u0079p\u0065\u0020\u0069\u006e\u0020\u0073\u0069\u0067\u006e\u0061\u0074\u0075\u0072\u0065 \u0063\u0065r\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u0063h\u0061\u0069\u006e\u003a\u0020\u0025\u0054",_ada );};_bfab =append (_bfab ,_abae .Bytes ()...);};default:return nil ,_db .Errorf ("\u0069n\u0076\u0061l\u0069\u0064\u0020s\u0069\u0067\u006e\u0061\u0074\u0075\u0072e\u0020\u0063\u0065\u0072\u0074\u0069f\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062\u006a\u0065\u0063t\u0020\u0074\u0079\u0070\u0065\u003a\u0020\u0025\u0054",_ef );};_ddbd ,_cad :=_dd .ParseCertificates (_bfab );if _cad !=nil {return nil ,_cad ;};return _ddbd [0],nil ;};
|
||||
package sighandler ;import (_f "bytes";_e "crypto";_aab "crypto/rand";_dd "crypto/rsa";_cc "crypto/x509";_g "crypto/x509/pkix";_aa "encoding/asn1";_cf "errors";_eg "fmt";_cfb "github.com/unidoc/pkcs7";_dc "github.com/unidoc/timestamp";_dcb "github.com/unidoc/unipdf/v3/core";_b "github.com/unidoc/unipdf/v3/model";_ca "hash";_c "io";_fg "io/ioutil";_ae "net/http";_a "time";);
|
||||
|
||||
// InitSignature initialises the PdfSignature.
|
||||
func (_bf *adobePKCS7Detached )InitSignature (sig *_b .PdfSignature )error {if !_bf ._ba {if _bf ._bd ==nil {return _cf .New ("c\u0065\u0072\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u006d\u0075\u0073\u0074\u0020n\u006f\u0074\u0020b\u0065 \u006e\u0069\u006c");};if _bf ._ge ==nil {return _cf .New ("\u0070\u0072\u0069\u0076\u0061\u0074\u0065\u004b\u0065\u0079\u0020m\u0075\u0073\u0074\u0020\u006e\u006f\u0074\u0020\u0062\u0065 \u006e\u0069\u006c");};};_de :=*_bf ;sig .Handler =&_de ;sig .Filter =_dcb .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_dcb .MakeName ("\u0061\u0064\u0062\u0065.p\u006b\u0063\u0073\u0037\u002e\u0064\u0065\u0074\u0061\u0063\u0068\u0065\u0064");sig .Reference =nil ;_eb ,_egb :=_de .NewDigest (sig );if _egb !=nil {return _egb ;};_eb .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));return _de .Sign (sig ,_eb );};func (_baf *adobePKCS7Detached )getCertificate (_aeb *_b .PdfSignature )(*_cc .Certificate ,error ){if _baf ._bd !=nil {return _baf ._bd ,nil ;};var _cb []byte ;switch _fe :=_aeb .Cert .(type ){case *_dcb .PdfObjectString :_cb =_fe .Bytes ();case *_dcb .PdfObjectArray :if _fe .Len ()==0{return nil ,_cf .New ("\u006e\u006f\u0020s\u0069\u0067\u006e\u0061t\u0075\u0072\u0065\u0020\u0063\u0065\u0072t\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0073\u0020\u0066\u006f\u0075\u006e\u0064");};for _ ,_da :=range _fe .Elements (){_af ,_cfbc :=_dcb .GetString (_da );if !_cfbc {return nil ,_eg .Errorf ("\u0069\u006ev\u0061\u006c\u0069\u0064\u0020\u0063\u0065\u0072\u0074\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062j\u0065\u0063\u0074\u0020\u0074\u0079p\u0065\u0020\u0069\u006e\u0020\u0073\u0069\u0067\u006e\u0061\u0074\u0075\u0072\u0065 \u0063\u0065r\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u0063h\u0061\u0069\u006e\u003a\u0020\u0025\u0054",_da );};_cb =append (_cb ,_af .Bytes ()...);};default:return nil ,_eg .Errorf ("\u0069n\u0076\u0061l\u0069\u0064\u0020s\u0069\u0067\u006e\u0061\u0074\u0075\u0072e\u0020\u0063\u0065\u0072\u0074\u0069f\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062\u006a\u0065\u0063t\u0020\u0074\u0079\u0070\u0065\u003a\u0020\u0025\u0054",_fe );};_bad ,_dce :=_cc .ParseCertificates (_cb );if _dce !=nil {return nil ,_dce ;};return _bad [0],nil ;};type docTimeStamp struct{_ecc string ;_bbc _e .Hash ;};
|
||||
|
||||
// NewDigest creates a new digest.
|
||||
func (_dc *adobePKCS7Detached )NewDigest (sig *_cc .PdfSignature )(_cc .Hasher ,error ){return _d .NewBuffer (nil ),nil ;};
|
||||
|
||||
// NewDigest creates a new digest.
|
||||
func (_cbef *docTimeStamp )NewDigest (sig *_cc .PdfSignature )(_cc .Hasher ,error ){return _d .NewBuffer (nil ),nil ;};func _dad (_ddca _cb .ObjectIdentifier )(_ae .Hash ,error ){switch {case _ddca .Equal (_gc .OIDDigestAlgorithmSHA1 ),_ddca .Equal (_gc .OIDDigestAlgorithmECDSASHA1 ),_ddca .Equal (_gc .OIDDigestAlgorithmDSA ),_ddca .Equal (_gc .OIDDigestAlgorithmDSASHA1 ),_ddca .Equal (_gc .OIDEncryptionAlgorithmRSA ):return _ae .SHA1 ,nil ;case _ddca .Equal (_gc .OIDDigestAlgorithmSHA256 ),_ddca .Equal (_gc .OIDDigestAlgorithmECDSASHA256 ):return _ae .SHA256 ,nil ;case _ddca .Equal (_gc .OIDDigestAlgorithmSHA384 ),_ddca .Equal (_gc .OIDDigestAlgorithmECDSASHA384 ):return _ae .SHA384 ,nil ;case _ddca .Equal (_gc .OIDDigestAlgorithmSHA512 ),_ddca .Equal (_gc .OIDDigestAlgorithmECDSASHA512 ):return _ae .SHA512 ,nil ;};return _ae .Hash (0),_gc .ErrUnsupportedAlgorithm ;};
|
||||
func (_bdc *adobePKCS7Detached )NewDigest (sig *_b .PdfSignature )(_b .Hasher ,error ){return _f .NewBuffer (nil ),nil ;};type timestampInfo struct{Version int ;Policy _aa .RawValue ;MessageImprint struct{HashAlgorithm _g .AlgorithmIdentifier ;HashedMessage []byte ;};SerialNumber _aa .RawValue ;GeneralizedTime _a .Time ;};type adobePKCS7Detached struct{_ge *_dd .PrivateKey ;_bd *_cc .Certificate ;_ba bool ;_ad int ;};
|
||||
|
||||
// Validate validates PdfSignature.
|
||||
func (_ede *adobePKCS7Detached )Validate (sig *_cc .PdfSignature ,digest _cc .Hasher )(_cc .SignatureValidationResult ,error ){_bg :=sig .Contents .Bytes ();_cab ,_ad :=_gc .Parse (_bg );if _ad !=nil {return _cc .SignatureValidationResult {},_ad ;};_gdd :=digest .(*_d .Buffer );_cab .Content =_gdd .Bytes ();if _ad =_cab .Verify ();_ad !=nil {return _cc .SignatureValidationResult {},_ad ;};return _cc .SignatureValidationResult {IsSigned :true ,IsVerified :true },nil ;};
|
||||
func (_ff *adobeX509RSASHA1 )Validate (sig *_b .PdfSignature ,digest _b .Hasher )(_b .SignatureValidationResult ,error ){_gc ,_dee :=_ff .getCertificate (sig );if _dee !=nil {return _b .SignatureValidationResult {},_dee ;};_bdd :=sig .Contents .Bytes ();var _cce []byte ;if _ ,_cceb :=_aa .Unmarshal (_bdd ,&_cce );_cceb !=nil {return _b .SignatureValidationResult {},_cceb ;};_fega ,_gd :=digest .(_ca .Hash );if !_gd {return _b .SignatureValidationResult {},_cf .New ("\u0068a\u0073h\u0020\u0074\u0079\u0070\u0065\u0020\u0065\u0072\u0072\u006f\u0072");};_bec ,_ :=_fede (_gc .SignatureAlgorithm );if _cbc :=_dd .VerifyPKCS1v15 (_gc .PublicKey .(*_dd .PublicKey ),_bec ,_fega .Sum (nil ),_cce );_cbc !=nil {return _b .SignatureValidationResult {},_cbc ;};return _b .SignatureValidationResult {IsSigned :true ,IsVerified :true },nil ;};
|
||||
|
||||
// NewDigest creates a new digest.
|
||||
func (_efc *docTimeStamp )NewDigest (sig *_b .PdfSignature )(_b .Hasher ,error ){return _f .NewBuffer (nil ),nil ;};
|
||||
|
||||
// NewDigest creates a new digest.
|
||||
func (_dag *adobeX509RSASHA1 )NewDigest (sig *_b .PdfSignature )(_b .Hasher ,error ){_gec ,_dbd :=_dag .getCertificate (sig );if _dbd !=nil {return nil ,_dbd ;};_ecf ,_ :=_fede (_gec .SignatureAlgorithm );return _ecf .New (),nil ;};
|
||||
|
||||
// Sign sets the Contents fields for the PdfSignature.
|
||||
func (_cfe *docTimeStamp )Sign (sig *_b .PdfSignature ,digest _b .Hasher )error {_ddc :=digest .(*_f .Buffer );_ceef :=_cfe ._bbc .New ();if _ ,_ecb :=_c .Copy (_ceef ,_ddc );_ecb !=nil {return _ecb ;};_bc :=_ceef .Sum (nil );_edd :=_dc .Request {HashAlgorithm :_cfe ._bbc ,HashedMessage :_bc ,Certificates :true ,Extensions :nil ,ExtraExtensions :nil };_ea ,_dcf :=_edd .Marshal ();if _dcf !=nil {return _dcf ;};_ac ,_dcf :=_ae .Post (_cfe ._ecc ,"a\u0070\u0070\u006c\u0069\u0063\u0061t\u0069\u006f\u006e\u002f\u0074\u0069\u006d\u0065\u0073t\u0061\u006d\u0070-\u0071u\u0065\u0072\u0079",_f .NewBuffer (_ea ));if _dcf !=nil {return _dcf ;};defer _ac .Body .Close ();_gfe ,_dcf :=_fg .ReadAll (_ac .Body );if _dcf !=nil {return _dcf ;};if _ac .StatusCode !=_ae .StatusOK {return _eg .Errorf ("\u0068\u0074\u0074\u0070\u0020\u0073\u0074\u0061\u0074\u0075\u0073\u0020\u0063\u006f\u0064e\u0020n\u006f\u0074\u0020\u006f\u006b\u0020\u0028\u0067\u006f\u0074\u0020\u0025\u0064\u0029",_ac .StatusCode );};var _adf struct{Version _aa .RawValue ;Content _aa .RawValue ;};_ ,_dcf =_aa .Unmarshal (_gfe ,&_adf );if _dcf !=nil {return _dcf ;};sig .Contents =_dcb .MakeHexString (string (_adf .Content .FullBytes ));return nil ;};
|
||||
|
||||
// SignFunc represents a custom signing function. The function should return
|
||||
// the computed signature.
|
||||
type SignFunc func (_aaf *_cc .PdfSignature ,_dg _cc .Hasher )([]byte ,error );
|
||||
type SignFunc func (_ebc *_b .PdfSignature ,_gb _b .Hasher )([]byte ,error );
|
||||
|
||||
// IsApplicable returns true if the signature handler is applicable for the PdfSignature.
|
||||
func (_bedb *docTimeStamp )IsApplicable (sig *_cc .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0045\u0054\u0053I\u002e\u0052\u0046\u0043\u0033\u0031\u0036\u0031";};
|
||||
// Validate validates PdfSignature.
|
||||
func (_fgaa *docTimeStamp )Validate (sig *_b .PdfSignature ,digest _b .Hasher )(_b .SignatureValidationResult ,error ){_cfbb :=sig .Contents .Bytes ();_gee ,_abf :=_cfb .Parse (_cfbb );if _abf !=nil {return _b .SignatureValidationResult {},_abf ;};if _abf =_gee .Verify ();_abf !=nil {return _b .SignatureValidationResult {},_abf ;};var _gafg timestampInfo ;_ ,_abf =_aa .Unmarshal (_gee .Content ,&_gafg );if _abf !=nil {return _b .SignatureValidationResult {},_abf ;};_bfb ,_abf :=_gagc (_gafg .MessageImprint .HashAlgorithm .Algorithm );if _abf !=nil {return _b .SignatureValidationResult {},_abf ;};_bbd :=_bfb .New ();_beg :=digest .(*_f .Buffer );_bbd .Write (_beg .Bytes ());_cee :=_bbd .Sum (nil );_cac :=_b .SignatureValidationResult {IsSigned :true ,IsVerified :_f .Equal (_cee ,_gafg .MessageImprint .HashedMessage ),GeneralizedTime :_gafg .GeneralizedTime };return _cac ,nil ;};func _fede (_feg _cc .SignatureAlgorithm )(_e .Hash ,bool ){return _e .SHA1 ,true };
|
||||
|
||||
// Sign sets the Contents fields for the PdfSignature.
|
||||
func (_ebd *adobeX509RSASHA1 )Sign (sig *_b .PdfSignature ,digest _b .Hasher )error {var _cef []byte ;var _baa error ;if _ebd ._gac !=nil {_cef ,_baa =_ebd ._gac (sig ,digest );if _baa !=nil {return _baa ;};}else {_ceb ,_caa :=digest .(_ca .Hash );if !_caa {return _cf .New ("\u0068a\u0073h\u0020\u0074\u0079\u0070\u0065\u0020\u0065\u0072\u0072\u006f\u0072");};_afd ,_ :=_fede (_ebd ._gag .SignatureAlgorithm );_cef ,_baa =_dd .SignPKCS1v15 (_aab .Reader ,_ebd ._ab ,_afd ,_ceb .Sum (nil ));if _baa !=nil {return _baa ;};};_cef ,_baa =_aa .Marshal (_cef );if _baa !=nil {return _baa ;};sig .Contents =_dcb .MakeHexString (string (_cef ));return nil ;};func (_fd *docTimeStamp )getCertificate (_fec *_b .PdfSignature )(*_cc .Certificate ,error ){var _gf []byte ;switch _bdcf :=_fec .Cert .(type ){case *_dcb .PdfObjectString :_gf =_bdcf .Bytes ();case *_dcb .PdfObjectArray :if _bdcf .Len ()==0{return nil ,_cf .New ("\u006e\u006f\u0020s\u0069\u0067\u006e\u0061t\u0075\u0072\u0065\u0020\u0063\u0065\u0072t\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0073\u0020\u0066\u006f\u0075\u006e\u0064");};for _ ,_geg :=range _bdcf .Elements (){_ebgd ,_dg :=_dcb .GetString (_geg );if !_dg {return nil ,_eg .Errorf ("\u0069\u006ev\u0061\u006c\u0069\u0064\u0020\u0063\u0065\u0072\u0074\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062j\u0065\u0063\u0074\u0020\u0074\u0079p\u0065\u0020\u0069\u006e\u0020\u0073\u0069\u0067\u006e\u0061\u0074\u0075\u0072\u0065 \u0063\u0065r\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u0063h\u0061\u0069\u006e\u003a\u0020\u0025\u0054",_geg );};_gf =append (_gf ,_ebgd .Bytes ()...);};default:return nil ,_eg .Errorf ("\u0069n\u0076\u0061l\u0069\u0064\u0020s\u0069\u0067\u006e\u0061\u0074\u0075\u0072e\u0020\u0063\u0065\u0072\u0074\u0069f\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062\u006a\u0065\u0063t\u0020\u0074\u0079\u0070\u0065\u003a\u0020\u0025\u0054",_bdcf );};_cg ,_cfa :=_cc .ParseCertificates (_gf );if _cfa !=nil {return nil ,_cfa ;};return _cg [0],nil ;};
|
||||
|
||||
// Sign sets the Contents fields.
|
||||
func (_fa *adobePKCS7Detached )Sign (sig *_b .PdfSignature ,digest _b .Hasher )error {if _fa ._ba {_fed :=_fa ._ad ;if _fed <=0{_fed =8192;};sig .Contents =_dcb .MakeHexString (string (make ([]byte ,_fed )));return nil ;};_ga :=digest .(*_f .Buffer );_adg ,_ebg :=_cfb .NewSignedData (_ga .Bytes ());if _ebg !=nil {return _ebg ;};if _gae :=_adg .AddSigner (_fa ._bd ,_fa ._ge ,_cfb .SignerInfoConfig {});_gae !=nil {return _gae ;};_adg .Detach ();_ed ,_ebg :=_adg .Finish ();if _ebg !=nil {return _ebg ;};_cec :=make ([]byte ,8192);copy (_cec ,_ed );sig .Contents =_dcb .MakeHexString (string (_cec ));return nil ;};
|
||||
|
||||
// NewAdobeX509RSASHA1Custom creates a new Adobe.PPKMS/Adobe.PPKLite adbe.x509.rsa_sha1 signature handler
|
||||
// with a custom signing function. Both parameters may be nil for the signature validation.
|
||||
func NewAdobeX509RSASHA1Custom (certificate *_dd .Certificate ,signFunc SignFunc )(_cc .SignatureHandler ,error ){return &adobeX509RSASHA1 {_gad :certificate ,_ce :signFunc },nil ;};func (_b *adobePKCS7Detached )getCertificate (_fg *_cc .PdfSignature )(*_dd .Certificate ,error ){if _b ._gd !=nil {return _b ._gd ,nil ;};var _ee []byte ;switch _aca :=_fg .Cert .(type ){case *_aeg .PdfObjectString :_ee =_aca .Bytes ();case *_aeg .PdfObjectArray :if _aca .Len ()==0{return nil ,_f .New ("\u006e\u006f\u0020s\u0069\u0067\u006e\u0061t\u0075\u0072\u0065\u0020\u0063\u0065\u0072t\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0073\u0020\u0066\u006f\u0075\u006e\u0064");};for _ ,_bc :=range _aca .Elements (){_gf ,_de :=_aeg .GetString (_bc );if !_de {return nil ,_db .Errorf ("\u0069\u006ev\u0061\u006c\u0069\u0064\u0020\u0063\u0065\u0072\u0074\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062j\u0065\u0063\u0074\u0020\u0074\u0079p\u0065\u0020\u0069\u006e\u0020\u0073\u0069\u0067\u006e\u0061\u0074\u0075\u0072\u0065 \u0063\u0065r\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u0063h\u0061\u0069\u006e\u003a\u0020\u0025\u0054",_bc );};_ee =append (_ee ,_gf .Bytes ()...);};default:return nil ,_db .Errorf ("\u0069n\u0076\u0061l\u0069\u0064\u0020s\u0069\u0067\u006e\u0061\u0074\u0075\u0072e\u0020\u0063\u0065\u0072\u0074\u0069f\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062\u006a\u0065\u0063t\u0020\u0074\u0079\u0070\u0065\u003a\u0020\u0025\u0054",_aca );};_gdg ,_be :=_dd .ParseCertificates (_ee );if _be !=nil {return nil ,_be ;};return _gdg [0],nil ;};
|
||||
|
||||
// InitSignature initialises the PdfSignature.
|
||||
func (_bgc *docTimeStamp )InitSignature (sig *_cc .PdfSignature )error {_gg :=*_bgc ;sig .Handler =&_gg ;sig .Filter =_aeg .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_aeg .MakeName ("\u0045\u0054\u0053I\u002e\u0052\u0046\u0043\u0033\u0031\u0036\u0031");sig .Reference =nil ;_gda ,_dfb :=_bgc .NewDigest (sig );if _dfb !=nil {return _dfb ;};_gda .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));return _gg .Sign (sig ,_gda );};
|
||||
|
||||
// NewAdobeX509RSASHA1 creates a new Adobe.PPKMS/Adobe.PPKLite adbe.x509.rsa_sha1 signature handler.
|
||||
// Both parameters may be nil for the signature validation.
|
||||
func NewAdobeX509RSASHA1 (privateKey *_ac .PrivateKey ,certificate *_dd .Certificate )(_cc .SignatureHandler ,error ){return &adobeX509RSASHA1 {_gad :certificate ,_cca :privateKey },nil ;};
|
||||
|
||||
// NewDigest creates a new digest.
|
||||
func (_ace *adobeX509RSASHA1 )NewDigest (sig *_cc .PdfSignature )(_cc .Hasher ,error ){_agg ,_bfa :=_ace .getCertificate (sig );if _bfa !=nil {return nil ,_bfa ;};_aag ,_ :=_bfc (_agg .SignatureAlgorithm );return _aag .New (),nil ;};type docTimeStamp struct{_ffb string ;_ebd _ae .Hash ;};
|
||||
|
||||
// Validate validates PdfSignature.
|
||||
func (_fb *docTimeStamp )Validate (sig *_cc .PdfSignature ,digest _cc .Hasher )(_cc .SignatureValidationResult ,error ){_bee :=sig .Contents .Bytes ();_cd ,_becg :=_gc .Parse (_bee );if _becg !=nil {return _cc .SignatureValidationResult {},_becg ;};if _becg =_cd .Verify ();_becg !=nil {return _cc .SignatureValidationResult {},_becg ;};var _bed timestampInfo ;_ ,_becg =_cb .Unmarshal (_cd .Content ,&_bed );if _becg !=nil {return _cc .SignatureValidationResult {},_becg ;};_fc ,_becg :=_dad (_bed .MessageImprint .HashAlgorithm .Algorithm );if _becg !=nil {return _cc .SignatureValidationResult {},_becg ;};_ceb :=_fc .New ();_edef :=digest .(*_d .Buffer );_ceb .Write (_edef .Bytes ());_ddcg :=_ceb .Sum (nil );_cebg :=_cc .SignatureValidationResult {IsSigned :true ,IsVerified :_d .Equal (_ddcg ,_bed .MessageImprint .HashedMessage ),GeneralizedTime :_bed .GeneralizedTime };return _cebg ,nil ;};
|
||||
|
||||
// Validate validates PdfSignature.
|
||||
func (_ba *adobeX509RSASHA1 )Validate (sig *_cc .PdfSignature ,digest _cc .Hasher )(_cc .SignatureValidationResult ,error ){_bb ,_gea :=_ba .getCertificate (sig );if _gea !=nil {return _cc .SignatureValidationResult {},_gea ;};_aed :=sig .Contents .Bytes ();var _fgd []byte ;if _ ,_geg :=_cb .Unmarshal (_aed ,&_fgd );_geg !=nil {return _cc .SignatureValidationResult {},_geg ;};_ffc ,_age :=digest .(_eg .Hash );if !_age {return _cc .SignatureValidationResult {},_f .New ("\u0068a\u0073h\u0020\u0074\u0079\u0070\u0065\u0020\u0065\u0072\u0072\u006f\u0072");};_adb ,_ :=_bfc (_bb .SignatureAlgorithm );if _ebe :=_ac .VerifyPKCS1v15 (_bb .PublicKey .(*_ac .PublicKey ),_adb ,_ffc .Sum (nil ),_fgd );_ebe !=nil {return _cc .SignatureValidationResult {},_ebe ;};return _cc .SignatureValidationResult {IsSigned :true ,IsVerified :true },nil ;};
|
||||
|
||||
// InitSignature initialises the PdfSignature.
|
||||
func (_gfc *adobeX509RSASHA1 )InitSignature (sig *_cc .PdfSignature )error {if _gfc ._gad ==nil {return _f .New ("c\u0065\u0072\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u006d\u0075\u0073\u0074\u0020n\u006f\u0074\u0020b\u0065 \u006e\u0069\u006c");};if _gfc ._cca ==nil &&_gfc ._ce ==nil {return _f .New ("\u006d\u0075\u0073\u0074\u0020\u0070\u0072o\u0076\u0069\u0064e\u0020\u0065\u0069t\u0068\u0065r\u0020\u0061\u0020\u0070\u0072\u0069v\u0061te\u0020\u006b\u0065\u0079\u0020\u006f\u0072\u0020\u0061\u0020\u0073\u0069\u0067\u006e\u0069\u006e\u0067\u0020\u0066\u0075\u006e\u0063\u0074\u0069\u006f\u006e");};_ccg :=*_gfc ;sig .Handler =&_ccg ;sig .Filter =_aeg .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_aeg .MakeName ("\u0061d\u0062e\u002e\u0078\u0035\u0030\u0039.\u0072\u0073a\u005f\u0073\u0068\u0061\u0031");sig .Cert =_aeg .MakeString (string (_ccg ._gad .Raw ));sig .Reference =nil ;_dgf ,_df :=_ccg .NewDigest (sig );if _df !=nil {return _df ;};_dgf .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));return _ccg .Sign (sig ,_dgf );};
|
||||
|
||||
// NewAdobePKCS7Detached creates a new Adobe.PPKMS/Adobe.PPKLite adbe.pkcs7.detached signature handler.
|
||||
// Both parameters may be nil for the signature validation.
|
||||
func NewAdobePKCS7Detached (privateKey *_ac .PrivateKey ,certificate *_dd .Certificate )(_cc .SignatureHandler ,error ){return &adobePKCS7Detached {_gd :certificate ,_ec :privateKey },nil ;};
|
||||
|
||||
// InitSignature initialises the PdfSignature.
|
||||
func (_ag *adobePKCS7Detached )InitSignature (sig *_cc .PdfSignature )error {if !_ag ._fe {if _ag ._gd ==nil {return _f .New ("c\u0065\u0072\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u006d\u0075\u0073\u0074\u0020n\u006f\u0074\u0020b\u0065 \u006e\u0069\u006c");};if _ag ._ec ==nil {return _f .New ("\u0070\u0072\u0069\u0076\u0061\u0074\u0065\u004b\u0065\u0079\u0020m\u0075\u0073\u0074\u0020\u006e\u006f\u0074\u0020\u0062\u0065 \u006e\u0069\u006c");};};_gdf :=*_ag ;sig .Handler =&_gdf ;sig .Filter =_aeg .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_aeg .MakeName ("\u0061\u0064\u0062\u0065.p\u006b\u0063\u0073\u0037\u002e\u0064\u0065\u0074\u0061\u0063\u0068\u0065\u0064");sig .Reference =nil ;_dbg ,_gdfa :=_gdf .NewDigest (sig );if _gdfa !=nil {return _gdfa ;};_dbg .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));return _gdf .Sign (sig ,_dbg );};func (_cf *adobeX509RSASHA1 )getCertificate (_ddb *_cc .PdfSignature )(*_dd .Certificate ,error ){if _cf ._gad !=nil {return _cf ._gad ,nil ;};var _ge []byte ;switch _ddcd :=_ddb .Cert .(type ){case *_aeg .PdfObjectString :_ge =_ddcd .Bytes ();case *_aeg .PdfObjectArray :if _ddcd .Len ()==0{return nil ,_f .New ("\u006e\u006f\u0020s\u0069\u0067\u006e\u0061t\u0075\u0072\u0065\u0020\u0063\u0065\u0072t\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0073\u0020\u0066\u006f\u0075\u006e\u0064");};for _ ,_eeg :=range _ddcd .Elements (){_gb ,_ff :=_aeg .GetString (_eeg );if !_ff {return nil ,_db .Errorf ("\u0069\u006ev\u0061\u006c\u0069\u0064\u0020\u0063\u0065\u0072\u0074\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062j\u0065\u0063\u0074\u0020\u0074\u0079p\u0065\u0020\u0069\u006e\u0020\u0073\u0069\u0067\u006e\u0061\u0074\u0075\u0072\u0065 \u0063\u0065r\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u0063h\u0061\u0069\u006e\u003a\u0020\u0025\u0054",_eeg );};_ge =append (_ge ,_gb .Bytes ()...);};default:return nil ,_db .Errorf ("\u0069n\u0076\u0061l\u0069\u0064\u0020s\u0069\u0067\u006e\u0061\u0074\u0075\u0072e\u0020\u0063\u0065\u0072\u0074\u0069f\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062\u006a\u0065\u0063t\u0020\u0074\u0079\u0070\u0065\u003a\u0020\u0025\u0054",_ddcd );};_dgc ,_daa :=_dd .ParseCertificates (_ge );if _daa !=nil {return nil ,_daa ;};return _dgc [0],nil ;};
|
||||
|
||||
// Sign sets the Contents fields for the PdfSignature.
|
||||
func (_gga *docTimeStamp )Sign (sig *_cc .PdfSignature ,digest _cc .Hasher )error {_egf :=digest .(*_d .Buffer );_bef :=_gga ._ebd .New ();if _ ,_aedf :=_c .Copy (_bef ,_egf );_aedf !=nil {return _aedf ;};_gbg :=_bef .Sum (nil );_adf :=_ca .Request {HashAlgorithm :_gga ._ebd ,HashedMessage :_gbg ,Certificates :true ,Extensions :nil ,ExtraExtensions :nil };_gfe ,_efc :=_adf .Marshal ();if _efc !=nil {return _efc ;};_adbd ,_efc :=_g .Post (_gga ._ffb ,"a\u0070\u0070\u006c\u0069\u0063\u0061t\u0069\u006f\u006e\u002f\u0074\u0069\u006d\u0065\u0073t\u0061\u006d\u0070-\u0071u\u0065\u0072\u0079",_d .NewBuffer (_gfe ));if _efc !=nil {return _efc ;};defer _adbd .Body .Close ();_acc ,_efc :=_ed .ReadAll (_adbd .Body );if _efc !=nil {return _efc ;};if _adbd .StatusCode !=_g .StatusOK {return _db .Errorf ("\u0068\u0074\u0074\u0070\u0020\u0073\u0074\u0061\u0074\u0075\u0073\u0020\u0063\u006f\u0064e\u0020n\u006f\u0074\u0020\u006f\u006b\u0020\u0028\u0067\u006f\u0074\u0020\u0025\u0064\u0029",_adbd .StatusCode );};var _egd struct{Version _cb .RawValue ;Content _cb .RawValue ;};_ ,_efc =_cb .Unmarshal (_acc ,&_egd );if _efc !=nil {return _efc ;};sig .Contents =_aeg .MakeHexString (string (_egd .Content .FullBytes ));return nil ;};
|
||||
|
||||
// IsApplicable returns true if the signature handler is applicable for the PdfSignature.
|
||||
func (_cbe *adobeX509RSASHA1 )IsApplicable (sig *_cc .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0061d\u0062e\u002e\u0078\u0035\u0030\u0039.\u0072\u0073a\u005f\u0073\u0068\u0061\u0031";};
|
||||
|
||||
// Sign sets the Contents fields for the PdfSignature.
|
||||
func (_gcd *adobeX509RSASHA1 )Sign (sig *_cc .PdfSignature ,digest _cc .Hasher )error {var _bff []byte ;var _fd error ;if _gcd ._ce !=nil {_bff ,_fd =_gcd ._ce (sig ,digest );if _fd !=nil {return _fd ;};}else {_bfaf ,_gca :=digest .(_eg .Hash );if !_gca {return _f .New ("\u0068a\u0073h\u0020\u0074\u0079\u0070\u0065\u0020\u0065\u0072\u0072\u006f\u0072");};_aba ,_ :=_bfc (_gcd ._gad .SignatureAlgorithm );_bff ,_fd =_ac .SignPKCS1v15 (_ga .Reader ,_gcd ._cca ,_aba ,_bfaf .Sum (nil ));if _fd !=nil {return _fd ;};};_bff ,_fd =_cb .Marshal (_bff );if _fd !=nil {return _fd ;};sig .Contents =_aeg .MakeHexString (string (_bff ));return nil ;};type timestampInfo struct{Version int ;Policy _cb .RawValue ;MessageImprint struct{HashAlgorithm _aa .AlgorithmIdentifier ;HashedMessage []byte ;};SerialNumber _cb .RawValue ;GeneralizedTime _e .Time ;};
|
||||
|
||||
// IsApplicable returns true if the signature handler is applicable for the PdfSignature
|
||||
func (_ddc *adobePKCS7Detached )IsApplicable (sig *_cc .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0061\u0064\u0062\u0065.p\u006b\u0063\u0073\u0037\u002e\u0064\u0065\u0074\u0061\u0063\u0068\u0065\u0064";};type adobePKCS7Detached struct{_ec *_ac .PrivateKey ;_gd *_dd .Certificate ;_fe bool ;_dbd int ;};func _bfc (_acdb _dd .SignatureAlgorithm )(_ae .Hash ,bool ){return _ae .SHA1 ,true };
|
||||
|
||||
// NewDocTimeStamp creates a new DocTimeStamp signature handler.
|
||||
// The timestampServerURL parameter can be empty string for the signature validation.
|
||||
// The hashAlgorithm parameter can be crypto.SHA1, crypto.SHA256, crypto.SHA384, crypto.SHA512.
|
||||
func NewDocTimeStamp (timestampServerURL string ,hashAlgorithm _ae .Hash )(_cc .SignatureHandler ,error ){return &docTimeStamp {_ffb :timestampServerURL ,_ebd :hashAlgorithm },nil ;};
|
||||
|
||||
// Sign sets the Contents fields.
|
||||
func (_bd *adobePKCS7Detached )Sign (sig *_cc .PdfSignature ,digest _cc .Hasher )error {if _bd ._fe {_acd :=_bd ._dbd ;if _acd <=0{_acd =8192;};sig .Contents =_aeg .MakeHexString (string (make ([]byte ,_acd )));return nil ;};_gfd :=digest .(*_d .Buffer );_ab ,_bdf :=_gc .NewSignedData (_gfd .Bytes ());if _bdf !=nil {return _bdf ;};if _fa :=_ab .AddSigner (_bd ._gd ,_bd ._ec ,_gc .SignerInfoConfig {});_fa !=nil {return _fa ;};_ab .Detach ();_bf ,_bdf :=_ab .Finish ();if _bdf !=nil {return _bdf ;};_da :=make ([]byte ,8192);copy (_da ,_bf );sig .Contents =_aeg .MakeHexString (string (_da ));return nil ;};
|
||||
func NewAdobeX509RSASHA1Custom (certificate *_cc .Certificate ,signFunc SignFunc )(_b .SignatureHandler ,error ){return &adobeX509RSASHA1 {_gag :certificate ,_gac :signFunc },nil ;};
|
||||
|
||||
// NewEmptyAdobePKCS7Detached creates a new Adobe.PPKMS/Adobe.PPKLite adbe.pkcs7.detached
|
||||
// signature handler. The generated signature is empty and of size signatureLen.
|
||||
// The signatureLen parameter can be 0 for the signature validation.
|
||||
func NewEmptyAdobePKCS7Detached (signatureLen int )(_cc .SignatureHandler ,error ){return &adobePKCS7Detached {_fe :true ,_dbd :signatureLen },nil ;};
|
||||
func NewEmptyAdobePKCS7Detached (signatureLen int )(_b .SignatureHandler ,error ){return &adobePKCS7Detached {_ba :true ,_ad :signatureLen },nil ;};
|
||||
|
||||
// Validate validates PdfSignature.
|
||||
func (_ce *adobePKCS7Detached )Validate (sig *_b .PdfSignature ,digest _b .Hasher )(_b .SignatureValidationResult ,error ){_df :=sig .Contents .Bytes ();_ef ,_bfc :=_cfb .Parse (_df );if _bfc !=nil {return _b .SignatureValidationResult {},_bfc ;};_afg :=digest .(*_f .Buffer );_ef .Content =_afg .Bytes ();if _bfc =_ef .Verify ();_bfc !=nil {return _b .SignatureValidationResult {},_bfc ;};return _b .SignatureValidationResult {IsSigned :true ,IsVerified :true },nil ;};
|
||||
|
||||
// IsApplicable returns true if the signature handler is applicable for the PdfSignature
|
||||
func (_dcc *adobePKCS7Detached )IsApplicable (sig *_b .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0061\u0064\u0062\u0065.p\u006b\u0063\u0073\u0037\u002e\u0064\u0065\u0074\u0061\u0063\u0068\u0065\u0064";};
|
||||
|
||||
// NewAdobePKCS7Detached creates a new Adobe.PPKMS/Adobe.PPKLite adbe.pkcs7.detached signature handler.
|
||||
// Both parameters may be nil for the signature validation.
|
||||
func NewAdobePKCS7Detached (privateKey *_dd .PrivateKey ,certificate *_cc .Certificate )(_b .SignatureHandler ,error ){return &adobePKCS7Detached {_bd :certificate ,_ge :privateKey },nil ;};
|
||||
|
||||
// NewAdobeX509RSASHA1 creates a new Adobe.PPKMS/Adobe.PPKLite adbe.x509.rsa_sha1 signature handler.
|
||||
// Both parameters may be nil for the signature validation.
|
||||
func NewAdobeX509RSASHA1 (privateKey *_dd .PrivateKey ,certificate *_cc .Certificate )(_b .SignatureHandler ,error ){return &adobeX509RSASHA1 {_gag :certificate ,_ab :privateKey },nil ;};func _gagc (_fc _aa .ObjectIdentifier )(_e .Hash ,error ){switch {case _fc .Equal (_cfb .OIDDigestAlgorithmSHA1 ),_fc .Equal (_cfb .OIDDigestAlgorithmECDSASHA1 ),_fc .Equal (_cfb .OIDDigestAlgorithmDSA ),_fc .Equal (_cfb .OIDDigestAlgorithmDSASHA1 ),_fc .Equal (_cfb .OIDEncryptionAlgorithmRSA ):return _e .SHA1 ,nil ;case _fc .Equal (_cfb .OIDDigestAlgorithmSHA256 ),_fc .Equal (_cfb .OIDDigestAlgorithmECDSASHA256 ):return _e .SHA256 ,nil ;case _fc .Equal (_cfb .OIDDigestAlgorithmSHA384 ),_fc .Equal (_cfb .OIDDigestAlgorithmECDSASHA384 ):return _e .SHA384 ,nil ;case _fc .Equal (_cfb .OIDDigestAlgorithmSHA512 ),_fc .Equal (_cfb .OIDDigestAlgorithmECDSASHA512 ):return _e .SHA512 ,nil ;};return _e .Hash (0),_cfb .ErrUnsupportedAlgorithm ;};
|
||||
|
||||
// NewDocTimeStamp creates a new DocTimeStamp signature handler.
|
||||
// The timestampServerURL parameter can be empty string for the signature validation.
|
||||
// The hashAlgorithm parameter can be crypto.SHA1, crypto.SHA256, crypto.SHA384, crypto.SHA512.
|
||||
func NewDocTimeStamp (timestampServerURL string ,hashAlgorithm _e .Hash )(_b .SignatureHandler ,error ){return &docTimeStamp {_ecc :timestampServerURL ,_bbc :hashAlgorithm },nil ;};
|
||||
|
||||
// IsApplicable returns true if the signature handler is applicable for the PdfSignature.
|
||||
func (_eef *adobeX509RSASHA1 )IsApplicable (sig *_b .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0061d\u0062e\u002e\u0078\u0035\u0030\u0039.\u0072\u0073a\u005f\u0073\u0068\u0061\u0031";};func (_ec *adobeX509RSASHA1 )getCertificate (_cfg *_b .PdfSignature )(*_cc .Certificate ,error ){if _ec ._gag !=nil {return _ec ._gag ,nil ;};var _gaf []byte ;switch _fgg :=_cfg .Cert .(type ){case *_dcb .PdfObjectString :_gaf =_fgg .Bytes ();case *_dcb .PdfObjectArray :if _fgg .Len ()==0{return nil ,_cf .New ("\u006e\u006f\u0020s\u0069\u0067\u006e\u0061t\u0075\u0072\u0065\u0020\u0063\u0065\u0072t\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0073\u0020\u0066\u006f\u0075\u006e\u0064");};for _ ,_db :=range _fgg .Elements (){_gbe ,_gagg :=_dcb .GetString (_db );if !_gagg {return nil ,_eg .Errorf ("\u0069\u006ev\u0061\u006c\u0069\u0064\u0020\u0063\u0065\u0072\u0074\u0069\u0066\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062j\u0065\u0063\u0074\u0020\u0074\u0079p\u0065\u0020\u0069\u006e\u0020\u0073\u0069\u0067\u006e\u0061\u0074\u0075\u0072\u0065 \u0063\u0065r\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u0063h\u0061\u0069\u006e\u003a\u0020\u0025\u0054",_db );};_gaf =append (_gaf ,_gbe .Bytes ()...);};default:return nil ,_eg .Errorf ("\u0069n\u0076\u0061l\u0069\u0064\u0020s\u0069\u0067\u006e\u0061\u0074\u0075\u0072e\u0020\u0063\u0065\u0072\u0074\u0069f\u0069\u0063\u0061\u0074\u0065\u0020\u006f\u0062\u006a\u0065\u0063t\u0020\u0074\u0079\u0070\u0065\u003a\u0020\u0025\u0054",_fgg );};_ee ,_bg :=_cc .ParseCertificates (_gaf );if _bg !=nil {return nil ,_bg ;};return _ee [0],nil ;};type adobeX509RSASHA1 struct{_ab *_dd .PrivateKey ;_gag *_cc .Certificate ;_gac SignFunc ;};
|
||||
|
||||
// IsApplicable returns true if the signature handler is applicable for the PdfSignature.
|
||||
func (_fef *docTimeStamp )IsApplicable (sig *_b .PdfSignature )bool {if sig ==nil ||sig .Filter ==nil ||sig .SubFilter ==nil {return false ;};return (*sig .Filter =="A\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004d\u0053"||*sig .Filter =="\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065")&&*sig .SubFilter =="\u0045\u0054\u0053I\u002e\u0052\u0046\u0043\u0033\u0031\u0036\u0031";};
|
||||
|
||||
// InitSignature initialises the PdfSignature.
|
||||
func (_cecd *adobeX509RSASHA1 )InitSignature (sig *_b .PdfSignature )error {if _cecd ._gag ==nil {return _cf .New ("c\u0065\u0072\u0074\u0069\u0066\u0069c\u0061\u0074\u0065\u0020\u006d\u0075\u0073\u0074\u0020n\u006f\u0074\u0020b\u0065 \u006e\u0069\u006c");};if _cecd ._ab ==nil &&_cecd ._gac ==nil {return _cf .New ("\u006d\u0075\u0073\u0074\u0020\u0070\u0072o\u0076\u0069\u0064e\u0020\u0065\u0069t\u0068\u0065r\u0020\u0061\u0020\u0070\u0072\u0069v\u0061te\u0020\u006b\u0065\u0079\u0020\u006f\u0072\u0020\u0061\u0020\u0073\u0069\u0067\u006e\u0069\u006e\u0067\u0020\u0066\u0075\u006e\u0063\u0074\u0069\u006f\u006e");};_bb :=*_cecd ;sig .Handler =&_bb ;sig .Filter =_dcb .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_dcb .MakeName ("\u0061d\u0062e\u002e\u0078\u0035\u0030\u0039.\u0072\u0073a\u005f\u0073\u0068\u0061\u0031");sig .Cert =_dcb .MakeString (string (_bb ._gag .Raw ));sig .Reference =nil ;_ced ,_aaa :=_bb .NewDigest (sig );if _aaa !=nil {return _aaa ;};_ced .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));return _bb .Sign (sig ,_ced );};
|
||||
|
||||
// InitSignature initialises the PdfSignature.
|
||||
func (_abe *docTimeStamp )InitSignature (sig *_b .PdfSignature )error {_fb :=*_abe ;sig .Handler =&_fb ;sig .Filter =_dcb .MakeName ("\u0041\u0064\u006f\u0062\u0065\u002e\u0050\u0050\u004b\u004c\u0069\u0074\u0065");sig .SubFilter =_dcb .MakeName ("\u0045\u0054\u0053I\u002e\u0052\u0046\u0043\u0033\u0031\u0036\u0031");sig .Reference =nil ;_dae ,_afe :=_abe .NewDigest (sig );if _afe !=nil {return _afe ;};_dae .Write ([]byte ("\u0063\u0061\u006c\u0063\u0075\u006ca\u0074\u0065\u0020\u0074\u0068\u0065\u0020\u0043\u006f\u006e\u0074\u0065\u006et\u0073\u0020\u0066\u0069\u0065\u006c\u0064 \u0073\u0069\u007a\u0065"));return _fb .Sign (sig ,_dae );};
|
||||
144
ps/ps.go
144
ps/ps.go
@ -14,83 +14,36 @@
|
||||
//
|
||||
// Package ps implements various functionalities needed for handling Postscript for PDF uses, in particular
|
||||
// for PDF function type 4.
|
||||
package ps ;import (_aa "bufio";_a "bytes";_e "errors";_ed "fmt";_ag "github.com/unidoc/unipdf/v3/common";_g "github.com/unidoc/unipdf/v3/core";_bg "io";_f "math";);
|
||||
package ps ;import (_fe "bufio";_d "bytes";_e "errors";_fg "fmt";_b "github.com/unidoc/unipdf/v3/common";_feb "github.com/unidoc/unipdf/v3/core";_ea "io";_eg "math";);func (_ffac *PSOperand )sin (_ddb *PSStack )error {_afgc ,_geea :=_ddb .PopNumberAsFloat64 ();if _geea !=nil {return _geea ;};_eafa :=_eg .Sin (_afgc *_eg .Pi /180.0);_geea =_ddb .Push (MakeReal (_eafa ));return _geea ;};func (_dbe *PSOperand )copy (_cddb *PSStack )error {_deg ,_gab :=_cddb .PopInteger ();if _gab !=nil {return _gab ;};if _deg < 0{return ErrRangeCheck ;};if _deg > len (*_cddb ){return ErrRangeCheck ;};*_cddb =append (*_cddb ,(*_cddb )[len (*_cddb )-_deg :]...);return nil ;};func (_cab *PSOperand )DebugString ()string {return _fg .Sprintf ("\u006fp\u003a\u0027\u0025\u0073\u0027",*_cab );};
|
||||
|
||||
// PSExecutor has its own execution stack and is used to executre a PS routine (program).
|
||||
type PSExecutor struct{Stack *PSStack ;_agb *PSProgram ;};func (_ddg *PSOperand )add (_gbf *PSStack )error {_bag ,_cd :=_gbf .Pop ();if _cd !=nil {return _cd ;};_fc ,_cd :=_gbf .Pop ();if _cd !=nil {return _cd ;};_fdcd ,_bdfg :=_bag .(*PSReal );_bbe ,_gbb :=_bag .(*PSInteger );if !_bdfg &&!_gbb {return ErrTypeCheck ;};_gfb ,_cbc :=_fc .(*PSReal );_db ,_dbc :=_fc .(*PSInteger );if !_cbc &&!_dbc {return ErrTypeCheck ;};if _gbb &&_dbc {_eb :=_bbe .Val +_db .Val ;_dg :=_gbf .Push (MakeInteger (_eb ));return _dg ;};var _agd float64 =0;if _bdfg {_agd =_fdcd .Val ;}else {_agd =float64 (_bbe .Val );};if _cbc {_agd +=_gfb .Val ;}else {_agd +=float64 (_db .Val );};_cd =_gbf .Push (MakeReal (_agd ));return _cd ;};func (_fd *PSBoolean )DebugString ()string {return _ed .Sprintf ("\u0062o\u006f\u006c\u003a\u0025\u0076",_fd .Val );};func (_bdec *PSOperand )log (_ced *PSStack )error {_aaa ,_cedg :=_ced .PopNumberAsFloat64 ();if _cedg !=nil {return _cedg ;};_efa :=_f .Log10 (_aaa );_cedg =_ced .Push (MakeReal (_efa ));return _cedg ;};var ErrTypeCheck =_e .New ("\u0074\u0079p\u0065\u0020\u0063h\u0065\u0063\u006b\u0020\u0065\u0072\u0072\u006f\u0072");func (_aee *PSOperand )round (_ffg *PSStack )error {_eedc ,_cbdd :=_ffg .Pop ();if _cbdd !=nil {return _cbdd ;};if _cgf ,_cddb :=_eedc .(*PSReal );_cddb {_cbdd =_ffg .Push (MakeReal (_f .Floor (_cgf .Val +0.5)));}else if _fefa ,_fgeg :=_eedc .(*PSInteger );_fgeg {_cbdd =_ffg .Push (MakeInteger (_fefa .Val ));}else {return ErrTypeCheck ;};return _cbdd ;};func (_cb *PSReal )DebugString ()string {return _ed .Sprintf ("\u0072e\u0061\u006c\u003a\u0025\u002e\u0035f",_cb .Val );};const _c =0.000001;func (_eccf *PSParser )parseNumber ()(PSObject ,error ){_ffe ,_ffee :=_g .ParseNumber (_eccf ._abgbc );if _ffee !=nil {return nil ,_ffee ;};switch _edf :=_ffe .(type ){case *_g .PdfObjectFloat :return MakeReal (float64 (*_edf )),nil ;case *_g .PdfObjectInteger :return MakeInteger (int (*_edf )),nil ;};return nil ,_ed .Errorf ("\u0075n\u0068\u0061\u006e\u0064\u006c\u0065\u0064\u0020\u006e\u0075\u006db\u0065\u0072\u0020\u0074\u0079\u0070\u0065\u0020\u0025\u0054",_ffe );};func (_ggd *PSOperand )ifCondition (_aff *PSStack )error {_bbg ,_cde :=_aff .Pop ();if _cde !=nil {return _cde ;};_acad ,_cde :=_aff .Pop ();if _cde !=nil {return _cde ;};_fed ,_feg :=_bbg .(*PSProgram );if !_feg {return ErrTypeCheck ;};_dfee ,_feg :=_acad .(*PSBoolean );if !_feg {return ErrTypeCheck ;};if _dfee .Val {_ddcb :=_fed .Exec (_aff );return _ddcb ;};return nil ;};func (_agc *PSOperand )exp (_ffc *PSStack )error {_aef ,_bce :=_ffc .PopNumberAsFloat64 ();if _bce !=nil {return _bce ;};_feab ,_bce :=_ffc .PopNumberAsFloat64 ();if _bce !=nil {return _bce ;};if _f .Abs (_aef )< 1&&_feab < 0{return ErrUndefinedResult ;};_beeb :=_f .Pow (_feab ,_aef );_bce =_ffc .Push (MakeReal (_beeb ));return _bce ;};var ErrUnsupportedOperand =_e .New ("\u0075\u006e\u0073\u0075pp\u006f\u0072\u0074\u0065\u0064\u0020\u006f\u0070\u0065\u0072\u0061\u006e\u0064");func (_df *PSInteger )DebugString ()string {return _ed .Sprintf ("\u0069\u006e\u0074\u003a\u0025\u0064",_df .Val );};func (_cea *PSOperand )floor (_afb *PSStack )error {_gg ,_cgd :=_afb .Pop ();if _cgd !=nil {return _cgd ;};if _cdd ,_abe :=_gg .(*PSReal );_abe {_cgd =_afb .Push (MakeReal (_f .Floor (_cdd .Val )));}else if _dgd ,_ece :=_gg .(*PSInteger );_ece {_cgd =_afb .Push (MakeInteger (_dgd .Val ));}else {return ErrTypeCheck ;};return _cgd ;};
|
||||
type PSExecutor struct{Stack *PSStack ;_fb *PSProgram ;};
|
||||
|
||||
// Empty empties the stack.
|
||||
func (_efb *PSStack )Empty (){*_efb =[]PSObject {}};
|
||||
|
||||
// MakeInteger returns a new PSInteger object initialized with `val`.
|
||||
func MakeInteger (val int )*PSInteger {_ccg :=PSInteger {};_ccg .Val =val ;return &_ccg };func (_eba *PSOperand )and (_dbg *PSStack )error {_ac ,_dcb :=_dbg .Pop ();if _dcb !=nil {return _dcb ;};_cbg ,_dcb :=_dbg .Pop ();if _dcb !=nil {return _dcb ;};if _adg ,_gcd :=_ac .(*PSBoolean );_gcd {_ebab ,_gcc :=_cbg .(*PSBoolean );if !_gcc {return ErrTypeCheck ;};_dcb =_dbg .Push (MakeBool (_adg .Val &&_ebab .Val ));return _dcb ;};if _dfaf ,_da :=_ac .(*PSInteger );_da {_dbf ,_gaf :=_cbg .(*PSInteger );if !_gaf {return ErrTypeCheck ;};_dcb =_dbg .Push (MakeInteger (_dfaf .Val &_dbf .Val ));return _dcb ;};return ErrTypeCheck ;};func (_dgdc *PSOperand )xor (_cebe *PSStack )error {_ecb ,_cacc :=_cebe .Pop ();if _cacc !=nil {return _cacc ;};_geab ,_cacc :=_cebe .Pop ();if _cacc !=nil {return _cacc ;};if _fdb ,_fcbe :=_ecb .(*PSBoolean );_fcbe {_gbad ,_gcca :=_geab .(*PSBoolean );if !_gcca {return ErrTypeCheck ;};_cacc =_cebe .Push (MakeBool (_fdb .Val !=_gbad .Val ));return _cacc ;};if _bbgc ,_bdfb :=_ecb .(*PSInteger );_bdfb {_agec ,_add :=_geab .(*PSInteger );if !_add {return ErrTypeCheck ;};_cacc =_cebe .Push (MakeInteger (_bbgc .Val ^_agec .Val ));return _cacc ;};return ErrTypeCheck ;};func (_debb *PSOperand )or (_fbe *PSStack )error {_bgf ,_abfc :=_fbe .Pop ();if _abfc !=nil {return _abfc ;};_adac ,_abfc :=_fbe .Pop ();if _abfc !=nil {return _abfc ;};if _gba ,_dgbg :=_bgf .(*PSBoolean );_dgbg {_beg ,_gef :=_adac .(*PSBoolean );if !_gef {return ErrTypeCheck ;};_abfc =_fbe .Push (MakeBool (_gba .Val ||_beg .Val ));return _abfc ;};if _cdbe ,_dfge :=_bgf .(*PSInteger );_dfge {_eaea ,_gea :=_adac .(*PSInteger );if !_gea {return ErrTypeCheck ;};_abfc =_fbe .Push (MakeInteger (_cdbe .Val |_eaea .Val ));return _abfc ;};return ErrTypeCheck ;};func (_ce *PSProgram )String ()string {_bda :="\u007b\u0020";for _ ,_cad :=range *_ce {_bda +=_cad .String ();_bda +="\u0020";};_bda +="\u007d";return _bda ;};func (_be *PSInteger )Duplicate ()PSObject {_ec :=PSInteger {};_ec .Val =_be .Val ;return &_ec };func (_ecce *PSOperand )sqrt (_abgg *PSStack )error {_dgc ,_cba :=_abgg .PopNumberAsFloat64 ();if _cba !=nil {return _cba ;};if _dgc < 0{return ErrRangeCheck ;};_ccdg :=_f .Sqrt (_dgc );_cba =_abgg .Push (MakeReal (_ccdg ));return _cba ;};
|
||||
|
||||
// NewPSProgram returns an empty, initialized PSProgram.
|
||||
func NewPSProgram ()*PSProgram {return &PSProgram {}};
|
||||
|
||||
// MakeReal returns a new PSReal object initialized with `val`.
|
||||
func MakeReal (val float64 )*PSReal {_cag :=PSReal {};_cag .Val =val ;return &_cag };func _aaffe (_aede int )int {if _aede < 0{return -_aede ;};return _aede ;};
|
||||
|
||||
// MakeOperand returns a new PSOperand object based on string `val`.
|
||||
func MakeOperand (val string )*PSOperand {_dga :=PSOperand (val );return &_dga };func (_gda *PSOperand )ge (_bgab *PSStack )error {_cdb ,_egb :=_bgab .PopNumberAsFloat64 ();if _egb !=nil {return _egb ;};_bdb ,_egb :=_bgab .PopNumberAsFloat64 ();if _egb !=nil {return _egb ;};if _f .Abs (_bdb -_cdb )< _c {_ggc :=_bgab .Push (MakeBool (true ));return _ggc ;}else if _bdb > _cdb {_aca :=_bgab .Push (MakeBool (true ));return _aca ;}else {_abgb :=_bgab .Push (MakeBool (false ));return _abgb ;};};
|
||||
|
||||
// PSReal represents a real number.
|
||||
type PSReal struct{Val float64 ;};
|
||||
|
||||
// PSInteger represents an integer.
|
||||
type PSInteger struct{Val int ;};func (_dbgd *PSOperand )idiv (_gfce *PSStack )error {_aag ,_cdbc :=_gfce .Pop ();if _cdbc !=nil {return _cdbc ;};_dac ,_cdbc :=_gfce .Pop ();if _cdbc !=nil {return _cdbc ;};_ebe ,_gdf :=_aag .(*PSInteger );if !_gdf {return ErrTypeCheck ;};if _ebe .Val ==0{return ErrUndefinedResult ;};_aaff ,_gdf :=_dac .(*PSInteger );if !_gdf {return ErrTypeCheck ;};_afc :=_aaff .Val /_ebe .Val ;_cdbc =_gfce .Push (MakeInteger (_afc ));return _cdbc ;};func (_dbgda *PSOperand )le (_gfcc *PSStack )error {_dfec ,_gad :=_gfcc .PopNumberAsFloat64 ();if _gad !=nil {return _gad ;};_agde ,_gad :=_gfcc .PopNumberAsFloat64 ();if _gad !=nil {return _gad ;};if _f .Abs (_agde -_dfec )< _c {_bace :=_gfcc .Push (MakeBool (true ));return _bace ;}else if _agde < _dfec {_fbb :=_gfcc .Push (MakeBool (true ));return _fbb ;}else {_gegd :=_gfcc .Push (MakeBool (false ));return _gegd ;};};
|
||||
// MakeBool returns a new PSBoolean object initialized with `val`.
|
||||
func MakeBool (val bool )*PSBoolean {_ade :=PSBoolean {};_ade .Val =val ;return &_ade };func (_gdg *PSOperand )ifCondition (_caff *PSStack )error {_edc ,_afc :=_caff .Pop ();if _afc !=nil {return _afc ;};_aac ,_afc :=_caff .Pop ();if _afc !=nil {return _afc ;};_gbfd ,_abad :=_edc .(*PSProgram );if !_abad {return ErrTypeCheck ;};_cba ,_abad :=_aac .(*PSBoolean );if !_abad {return ErrTypeCheck ;};if _cba .Val {_eaf :=_gbfd .Exec (_caff );return _eaf ;};return nil ;};
|
||||
|
||||
// Exec executes the program, typically leaving output values on the stack.
|
||||
func (_bdg *PSProgram )Exec (stack *PSStack )error {for _ ,_gfc :=range *_bdg {var _aac error ;switch _ede :=_gfc .(type ){case *PSInteger :_ba :=_ede ;_aac =stack .Push (_ba );case *PSReal :_gcfg :=_ede ;_aac =stack .Push (_gcfg );case *PSBoolean :_dfg :=_ede ;_aac =stack .Push (_dfg );case *PSProgram :_gbg :=_ede ;_aac =stack .Push (_gbg );case *PSOperand :_fdc :=_ede ;_aac =_fdc .Exec (stack );default:return ErrTypeCheck ;};if _aac !=nil {return _aac ;};};return nil ;};func (_bece *PSOperand )exch (_deb *PSStack )error {_bfd ,_cda :=_deb .Pop ();if _cda !=nil {return _cda ;};_dge ,_cda :=_deb .Pop ();if _cda !=nil {return _cda ;};_cda =_deb .Push (_bfd );if _cda !=nil {return _cda ;};_cda =_deb .Push (_dge );return _cda ;};func (_gee *PSOperand )neg (_fae *PSStack )error {_cbd ,_efaf :=_fae .Pop ();if _efaf !=nil {return _efaf ;};if _cee ,_abea :=_cbd .(*PSReal );_abea {_efaf =_fae .Push (MakeReal (-_cee .Val ));return _efaf ;}else if _egbe ,_gab :=_cbd .(*PSInteger );_gab {_efaf =_fae .Push (MakeInteger (-_egbe .Val ));return _efaf ;}else {return ErrTypeCheck ;};};func (_gfe *PSOperand )mul (_cedf *PSStack )error {_bff ,_beaf :=_cedf .Pop ();if _beaf !=nil {return _beaf ;};_bage ,_beaf :=_cedf .Pop ();if _beaf !=nil {return _beaf ;};_bdad ,_eca :=_bff .(*PSReal );_ebbc ,_eee :=_bff .(*PSInteger );if !_eca &&!_eee {return ErrTypeCheck ;};_eebd ,_fegd :=_bage .(*PSReal );_bdae ,_ceca :=_bage .(*PSInteger );if !_fegd &&!_ceca {return ErrTypeCheck ;};if _eee &&_ceca {_abag :=_ebbc .Val *_bdae .Val ;_gdg :=_cedf .Push (MakeInteger (_abag ));return _gdg ;};var _gfgd float64 =0;if _eca {_gfgd =_bdad .Val ;}else {_gfgd =float64 (_ebbc .Val );};if _fegd {_gfgd *=_eebd .Val ;}else {_gfgd *=float64 (_bdae .Val );};_beaf =_cedf .Push (MakeReal (_gfgd ));return _beaf ;};func (_agbaa *PSOperand )sin (_ceeb *PSStack )error {_eaee ,_adbg :=_ceeb .PopNumberAsFloat64 ();if _adbg !=nil {return _adbg ;};_caa :=_f .Sin (_eaee *_f .Pi /180.0);_adbg =_ceeb .Push (MakeReal (_caa ));return _adbg ;};
|
||||
func (_cdd *PSProgram )Exec (stack *PSStack )error {for _ ,_fdf :=range *_cdd {var _fgd error ;switch _dcg :=_fdf .(type ){case *PSInteger :_cfd :=_dcg ;_fgd =stack .Push (_cfd );case *PSReal :_caa :=_dcg ;_fgd =stack .Push (_caa );case *PSBoolean :_fc :=_dcg ;_fgd =stack .Push (_fc );case *PSProgram :_egf :=_dcg ;_fgd =stack .Push (_egf );case *PSOperand :_geb :=_dcg ;_fgd =_geb .Exec (stack );default:return ErrTypeCheck ;};if _fgd !=nil {return _fgd ;};};return nil ;};func (_ge *PSInteger )Duplicate ()PSObject {_c :=PSInteger {};_c .Val =_ge .Val ;return &_c };func (_decc *PSOperand )sub (_fgdb *PSStack )error {_gce ,_gadb :=_fgdb .Pop ();if _gadb !=nil {return _gadb ;};_ddga ,_gadb :=_fgdb .Pop ();if _gadb !=nil {return _gadb ;};_agg ,_dcec :=_gce .(*PSReal );_badc ,_gefb :=_gce .(*PSInteger );if !_dcec &&!_gefb {return ErrTypeCheck ;};_efd ,_acg :=_ddga .(*PSReal );_aaa ,_fdd :=_ddga .(*PSInteger );if !_acg &&!_fdd {return ErrTypeCheck ;};if _gefb &&_fdd {_gca :=_aaa .Val -_badc .Val ;_ffef :=_fgdb .Push (MakeInteger (_gca ));return _ffef ;};var _bbcfb float64 =0;if _acg {_bbcfb =_efd .Val ;}else {_bbcfb =float64 (_aaa .Val );};if _dcec {_bbcfb -=_agg .Val ;}else {_bbcfb -=float64 (_badc .Val );};_gadb =_fgdb .Push (MakeReal (_bbcfb ));return _gadb ;};var ErrTypeCheck =_e .New ("\u0074\u0079p\u0065\u0020\u0063h\u0065\u0063\u006b\u0020\u0065\u0072\u0072\u006f\u0072");
|
||||
|
||||
// PopInteger specificially pops an integer from the top of the stack, returning the value as an int.
|
||||
func (_cebf *PSStack )PopInteger ()(int ,error ){_bgdc ,_bcf :=_cebf .Pop ();if _bcf !=nil {return 0,_bcf ;};if _ddf ,_bbb :=_bgdc .(*PSInteger );_bbb {return _ddf .Val ,nil ;};return 0,ErrTypeCheck ;};func (_fab *PSOperand )bitshift (_abd *PSStack )error {_aeg ,_bgd :=_abd .PopInteger ();if _bgd !=nil {return _bgd ;};_bbeb ,_bgd :=_abd .PopInteger ();if _bgd !=nil {return _bgd ;};var _edb int ;if _aeg >=0{_edb =_bbeb <<uint (_aeg );}else {_edb =_bbeb >>uint (-_aeg );};_bgd =_abd .Push (MakeInteger (_edb ));return _bgd ;};func (_bdd *PSOperand )pop (_bcg *PSStack )error {_ ,_baf :=_bcg .Pop ();if _baf !=nil {return _baf ;};return nil ;};func (_eda *PSOperand )Duplicate ()PSObject {_fea :=*_eda ;return &_fea };
|
||||
// MakeOperand returns a new PSOperand object based on string `val`.
|
||||
func MakeOperand (val string )*PSOperand {_gfeea :=PSOperand (val );return &_gfeea };func (_cbe *PSOperand )gt (_cae *PSStack )error {_ded ,_gec :=_cae .PopNumberAsFloat64 ();if _gec !=nil {return _gec ;};_dbed ,_gec :=_cae .PopNumberAsFloat64 ();if _gec !=nil {return _gec ;};if _eg .Abs (_dbed -_ded )< _a {_eea :=_cae .Push (MakeBool (false ));return _eea ;}else if _dbed > _ded {_fda :=_cae .Push (MakeBool (true ));return _fda ;}else {_egb :=_cae .Push (MakeBool (false ));return _egb ;};};
|
||||
|
||||
// PSStack defines a stack of PSObjects. PSObjects can be pushed on or pull from the stack.
|
||||
type PSStack []PSObject ;
|
||||
|
||||
// Execute executes the program for an input parameters `objects` and returns a slice of output objects.
|
||||
func (_ae *PSExecutor )Execute (objects []PSObject )([]PSObject ,error ){for _ ,_gc :=range objects {_geg :=_ae .Stack .Push (_gc );if _geg !=nil {return nil ,_geg ;};};_bd :=_ae ._agb .Exec (_ae .Stack );if _bd !=nil {_ag .Log .Debug ("\u0045x\u0065c\u0020\u0066\u0061\u0069\u006c\u0065\u0064\u003a\u0020\u0025\u0076",_bd );return nil ,_bd ;};_ca :=[]PSObject (*_ae .Stack );_ae .Stack .Empty ();return _ca ,nil ;};func (_gabc *PSParser )skipSpaces ()(int ,error ){_fgd :=0;for {_ecca ,_cdg :=_gabc ._abgbc .Peek (1);if _cdg !=nil {return 0,_cdg ;};if _g .IsWhiteSpace (_ecca [0]){_gabc ._abgbc .ReadByte ();_fgd ++;}else {break ;};};return _fgd ,nil ;};
|
||||
|
||||
// Exec executes the operand `op` in the state specified by `stack`.
|
||||
func (_dce *PSOperand )Exec (stack *PSStack )error {_eg :=ErrUnsupportedOperand ;switch *_dce {case "\u0061\u0062\u0073":_eg =_dce .abs (stack );case "\u0061\u0064\u0064":_eg =_dce .add (stack );case "\u0061\u006e\u0064":_eg =_dce .and (stack );case "\u0061\u0074\u0061\u006e":_eg =_dce .atan (stack );case "\u0062\u0069\u0074\u0073\u0068\u0069\u0066\u0074":_eg =_dce .bitshift (stack );case "\u0063e\u0069\u006c\u0069\u006e\u0067":_eg =_dce .ceiling (stack );case "\u0063\u006f\u0070\u0079":_eg =_dce .copy (stack );case "\u0063\u006f\u0073":_eg =_dce .cos (stack );case "\u0063\u0076\u0069":_eg =_dce .cvi (stack );case "\u0063\u0076\u0072":_eg =_dce .cvr (stack );case "\u0064\u0069\u0076":_eg =_dce .div (stack );case "\u0064\u0075\u0070":_eg =_dce .dup (stack );case "\u0065\u0071":_eg =_dce .eq (stack );case "\u0065\u0078\u0063\u0068":_eg =_dce .exch (stack );case "\u0065\u0078\u0070":_eg =_dce .exp (stack );case "\u0066\u006c\u006fo\u0072":_eg =_dce .floor (stack );case "\u0067\u0065":_eg =_dce .ge (stack );case "\u0067\u0074":_eg =_dce .gt (stack );case "\u0069\u0064\u0069\u0076":_eg =_dce .idiv (stack );case "\u0069\u0066":_eg =_dce .ifCondition (stack );case "\u0069\u0066\u0065\u006c\u0073\u0065":_eg =_dce .ifelse (stack );case "\u0069\u006e\u0064e\u0078":_eg =_dce .index (stack );case "\u006c\u0065":_eg =_dce .le (stack );case "\u006c\u006f\u0067":_eg =_dce .log (stack );case "\u006c\u006e":_eg =_dce .ln (stack );case "\u006c\u0074":_eg =_dce .lt (stack );case "\u006d\u006f\u0064":_eg =_dce .mod (stack );case "\u006d\u0075\u006c":_eg =_dce .mul (stack );case "\u006e\u0065":_eg =_dce .ne (stack );case "\u006e\u0065\u0067":_eg =_dce .neg (stack );case "\u006e\u006f\u0074":_eg =_dce .not (stack );case "\u006f\u0072":_eg =_dce .or (stack );case "\u0070\u006f\u0070":_eg =_dce .pop (stack );case "\u0072\u006f\u0075n\u0064":_eg =_dce .round (stack );case "\u0072\u006f\u006c\u006c":_eg =_dce .roll (stack );case "\u0073\u0069\u006e":_eg =_dce .sin (stack );case "\u0073\u0071\u0072\u0074":_eg =_dce .sqrt (stack );case "\u0073\u0075\u0062":_eg =_dce .sub (stack );case "\u0074\u0072\u0075\u006e\u0063\u0061\u0074\u0065":_eg =_dce .truncate (stack );case "\u0078\u006f\u0072":_eg =_dce .xor (stack );};return _eg ;};func (_gcf *PSBoolean )Duplicate ()PSObject {_ged :=PSBoolean {};_ged .Val =_gcf .Val ;return &_ged };func (_gfae *PSOperand )roll (_cbee *PSStack )error {_gae ,_ebba :=_cbee .Pop ();if _ebba !=nil {return _ebba ;};_cacff ,_ebba :=_cbee .Pop ();if _ebba !=nil {return _ebba ;};_egbb ,_cgde :=_gae .(*PSInteger );if !_cgde {return ErrTypeCheck ;};_cbf ,_cgde :=_cacff .(*PSInteger );if !_cgde {return ErrTypeCheck ;};if _cbf .Val < 0{return ErrRangeCheck ;};if _cbf .Val ==0||_cbf .Val ==1{return nil ;};if _cbf .Val > len (*_cbee ){return ErrStackUnderflow ;};for _bcd :=0;_bcd < _aaffe (_egbb .Val );_bcd ++{var _gaff []PSObject ;_gaff =(*_cbee )[len (*_cbee )-(_cbf .Val ):len (*_cbee )];if _egbb .Val > 0{_cbeg :=_gaff [len (_gaff )-1];_gaff =append ([]PSObject {_cbeg },_gaff [0:len (_gaff )-1]...);}else {_gdab :=_gaff [len (_gaff )-_cbf .Val ];_gaff =append (_gaff [1:],_gdab );};_gbbc :=append ((*_cbee )[0:len (*_cbee )-_cbf .Val ],_gaff ...);_cbee =&_gbbc ;};return nil ;};func (_fg *PSProgram )Duplicate ()PSObject {_adf :=&PSProgram {};for _ ,_adfe :=range *_fg {_adf .Append (_adfe .Duplicate ());};return _adf ;};func (_dfe *PSReal )String ()string {return _ed .Sprintf ("\u0025\u002e\u0035\u0066",_dfe .Val )};func (_aeb *PSInteger )String ()string {return _ed .Sprintf ("\u0025\u0064",_aeb .Val )};func (_afa *PSOperand )lt (_fge *PSStack )error {_eegf ,_eafe :=_fge .PopNumberAsFloat64 ();if _eafe !=nil {return _eafe ;};_cge ,_eafe :=_fge .PopNumberAsFloat64 ();if _eafe !=nil {return _eafe ;};if _f .Abs (_cge -_eegf )< _c {_bcce :=_fge .Push (MakeBool (false ));return _bcce ;}else if _cge < _eegf {_adfd :=_fge .Push (MakeBool (true ));return _adfd ;}else {_gde :=_fge .Push (MakeBool (false ));return _gde ;};};func (_adb *PSOperand )String ()string {return _ed .Sprintf ("\u0025\u0073",*_adb )};func (_ga *PSReal )Duplicate ()PSObject {_eed :=PSReal {};_eed .Val =_ga .Val ;return &_eed };
|
||||
|
||||
// NewPSParser returns a new instance of the PDF Postscript parser from input data.
|
||||
func NewPSParser (content []byte )*PSParser {_ccb :=PSParser {};_dfd :=_a .NewBuffer (content );_ccb ._abgbc =_aa .NewReader (_dfd );return &_ccb ;};func (_ccfc *PSOperand )truncate (_fff *PSStack )error {_bba ,_beb :=_fff .Pop ();if _beb !=nil {return _beb ;};if _eeae ,_dae :=_bba .(*PSReal );_dae {_agf :=int (_eeae .Val );_beb =_fff .Push (MakeReal (float64 (_agf )));}else if _cebc ,_cce :=_bba .(*PSInteger );_cce {_beb =_fff .Push (MakeInteger (_cebc .Val ));}else {return ErrTypeCheck ;};return _beb ;};func (_fce *PSOperand )div (_adfg *PSStack )error {_eeb ,_cca :=_adfg .Pop ();if _cca !=nil {return _cca ;};_bagf ,_cca :=_adfg .Pop ();if _cca !=nil {return _cca ;};_fda ,_fbg :=_eeb .(*PSReal );_dba ,_fde :=_eeb .(*PSInteger );if !_fbg &&!_fde {return ErrTypeCheck ;};if _fbg &&_fda .Val ==0{return ErrUndefinedResult ;};if _fde &&_dba .Val ==0{return ErrUndefinedResult ;};_ccce ,_ada :=_bagf .(*PSReal );_fbgc ,_fgg :=_bagf .(*PSInteger );if !_ada &&!_fgg {return ErrTypeCheck ;};var _ddce float64 =0;if _ada {_ddce =_ccce .Val ;}else {_ddce =float64 (_fbgc .Val );};if _fbg {_ddce /=_fda .Val ;}else {_ddce /=float64 (_dba .Val );};_cca =_adfg .Push (MakeReal (_ddce ));return _cca ;};func (_eea *PSOperand )ceiling (_af *PSStack )error {_bcc ,_fadd :=_af .Pop ();if _fadd !=nil {return _fadd ;};if _fcb ,_daa :=_bcc .(*PSReal );_daa {_fadd =_af .Push (MakeReal (_f .Ceil (_fcb .Val )));}else if _ffb ,_bec :=_bcc .(*PSInteger );_bec {_fadd =_af .Push (MakeInteger (_ffb .Val ));}else {_fadd =ErrTypeCheck ;};return _fadd ;};func (_eag *PSOperand )not (_beff *PSStack )error {_cdaa ,_adab :=_beff .Pop ();if _adab !=nil {return _adab ;};if _gdfe ,_eff :=_cdaa .(*PSBoolean );_eff {_adab =_beff .Push (MakeBool (!_gdfe .Val ));return _adab ;}else if _aceb ,_fcbg :=_cdaa .(*PSInteger );_fcbg {_adab =_beff .Push (MakeInteger (^_aceb .Val ));return _adab ;}else {return ErrTypeCheck ;};};func (_dcdf *PSOperand )ln (_cf *PSStack )error {_aba ,_cfd :=_cf .PopNumberAsFloat64 ();if _cfd !=nil {return _cfd ;};_eedb :=_f .Log (_aba );_cfd =_cf .Push (MakeReal (_eedb ));return _cfd ;};func (_ebg *PSParser )parseFunction ()(*PSProgram ,error ){_ggg ,_ :=_ebg ._abgbc .ReadByte ();if _ggg !='{'{return nil ,_e .New ("\u0069\u006ev\u0061\u006c\u0069d\u0020\u0066\u0075\u006e\u0063\u0074\u0069\u006f\u006e");};_adca :=NewPSProgram ();for {_ebg .skipSpaces ();_gcba ,_fbc :=_ebg ._abgbc .Peek (2);if _fbc !=nil {if _fbc ==_bg .EOF {break ;};return nil ,_fbc ;};_ag .Log .Trace ("\u0050e\u0065k\u0020\u0073\u0074\u0072\u0069\u006e\u0067\u003a\u0020\u0025\u0073",string (_gcba ));if _gcba [0]=='}'{_ag .Log .Trace ("\u0045\u004f\u0046 \u0066\u0075\u006e\u0063\u0074\u0069\u006f\u006e");_ebg ._abgbc .ReadByte ();break ;}else if _gcba [0]=='{'{_ag .Log .Trace ("\u0046u\u006e\u0063\u0074\u0069\u006f\u006e!");_gaea ,_abgd :=_ebg .parseFunction ();if _abgd !=nil {return nil ,_abgd ;};_adca .Append (_gaea );}else if _g .IsDecimalDigit (_gcba [0])||(_gcba [0]=='-'&&_g .IsDecimalDigit (_gcba [1])){_ag .Log .Trace ("\u002d>\u004e\u0075\u006d\u0062\u0065\u0072!");_fbfd ,_adgd :=_ebg .parseNumber ();if _adgd !=nil {return nil ,_adgd ;};_adca .Append (_fbfd );}else {_ag .Log .Trace ("\u002d>\u004fp\u0065\u0072\u0061\u006e\u0064 \u006f\u0072 \u0062\u006f\u006f\u006c\u003f");_gcba ,_ =_ebg ._abgbc .Peek (5);_aafa :=string (_gcba );_ag .Log .Trace ("\u0050\u0065\u0065k\u0020\u0073\u0074\u0072\u003a\u0020\u0025\u0073",_aafa );if (len (_aafa )> 4)&&(_aafa [:5]=="\u0066\u0061\u006cs\u0065"){_beae ,_dbb :=_ebg .parseBool ();if _dbb !=nil {return nil ,_dbb ;};_adca .Append (_beae );}else if (len (_aafa )> 3)&&(_aafa [:4]=="\u0074\u0072\u0075\u0065"){_dcbe ,_edbe :=_ebg .parseBool ();if _edbe !=nil {return nil ,_edbe ;};_adca .Append (_dcbe );}else {_ffad ,_ccdb :=_ebg .parseOperand ();if _ccdb !=nil {return nil ,_ccdb ;};_adca .Append (_ffad );};};};return _adca ,nil ;};
|
||||
|
||||
// PSParser is a basic Postscript parser.
|
||||
type PSParser struct{_abgbc *_aa .Reader };func (_bed *PSOperand )eq (_adfa *PSStack )error {_gca ,_gcde :=_adfa .Pop ();if _gcde !=nil {return _gcde ;};_cadb ,_gcde :=_adfa .Pop ();if _gcde !=nil {return _gcde ;};_fca ,_afe :=_gca .(*PSBoolean );_fbd ,_bae :=_cadb .(*PSBoolean );if _afe ||_bae {var _ffbd error ;if _afe &&_bae {_ffbd =_adfa .Push (MakeBool (_fca .Val ==_fbd .Val ));}else {_ffbd =_adfa .Push (MakeBool (false ));};return _ffbd ;};var _fdcc float64 ;var _ebb float64 ;if _cacda ,_dag :=_gca .(*PSInteger );_dag {_fdcc =float64 (_cacda .Val );}else if _fee ,_aege :=_gca .(*PSReal );_aege {_fdcc =_fee .Val ;}else {return ErrTypeCheck ;};if _fcf ,_edc :=_cadb .(*PSInteger );_edc {_ebb =float64 (_fcf .Val );}else if _ecc ,_dcbf :=_cadb .(*PSReal );_dcbf {_ebb =_ecc .Val ;}else {return ErrTypeCheck ;};if _f .Abs (_ebb -_fdcc )< _c {_gcde =_adfa .Push (MakeBool (true ));}else {_gcde =_adfa .Push (MakeBool (false ));};return _gcde ;};func (_gfd *PSOperand )dup (_age *PSStack )error {_cadc ,_eegg :=_age .Pop ();if _eegg !=nil {return _eegg ;};_eegg =_age .Push (_cadc );if _eegg !=nil {return _eegg ;};_eegg =_age .Push (_cadc .Duplicate ());return _eegg ;};func (_gegg *PSParser )parseBool ()(*PSBoolean ,error ){_bgg ,_fec :=_gegg ._abgbc .Peek (4);if _fec !=nil {return MakeBool (false ),_fec ;};if (len (_bgg )>=4)&&(string (_bgg [:4])=="\u0074\u0072\u0075\u0065"){_gegg ._abgbc .Discard (4);return MakeBool (true ),nil ;};_bgg ,_fec =_gegg ._abgbc .Peek (5);if _fec !=nil {return MakeBool (false ),_fec ;};if (len (_bgg )>=5)&&(string (_bgg [:5])=="\u0066\u0061\u006cs\u0065"){_gegg ._abgbc .Discard (5);return MakeBool (false ),nil ;};return MakeBool (false ),_e .New ("\u0075n\u0065\u0078\u0070\u0065c\u0074\u0065\u0064\u0020\u0062o\u006fl\u0065a\u006e\u0020\u0073\u0074\u0072\u0069\u006eg");};
|
||||
|
||||
// NewPSExecutor returns an initialized PSExecutor for an input `program`.
|
||||
func NewPSExecutor (program *PSProgram )*PSExecutor {_ee :=&PSExecutor {};_ee .Stack =NewPSStack ();_ee ._agb =program ;return _ee ;};func (_eaf *PSOperand )gt (_abed *PSStack )error {_bbc ,_ega :=_abed .PopNumberAsFloat64 ();if _ega !=nil {return _ega ;};_aad ,_ega :=_abed .PopNumberAsFloat64 ();if _ega !=nil {return _ega ;};if _f .Abs (_aad -_bbc )< _c {_ageb :=_abed .Push (MakeBool (false ));return _ageb ;}else if _aad > _bbc {_fbf :=_abed .Push (MakeBool (true ));return _fbf ;}else {_bbd :=_abed .Push (MakeBool (false ));return _bbd ;};};var ErrUndefinedResult =_e .New ("\u0075\u006e\u0064\u0065fi\u006e\u0065\u0064\u0020\u0072\u0065\u0073\u0075\u006c\u0074\u0020\u0065\u0072\u0072o\u0072");func (_ebgb *PSParser )parseOperand ()(*PSOperand ,error ){var _feb []byte ;for {_aacf ,_dbad :=_ebgb ._abgbc .Peek (1);if _dbad !=nil {if _dbad ==_bg .EOF {break ;};return nil ,_dbad ;};if _g .IsDelimiter (_aacf [0]){break ;};if _g .IsWhiteSpace (_aacf [0]){break ;};_gec ,_ :=_ebgb ._abgbc .ReadByte ();_feb =append (_feb ,_gec );};if len (_feb )==0{return nil ,_e .New ("\u0069\u006e\u0076al\u0069\u0064\u0020\u006f\u0070\u0065\u0072\u0061\u006e\u0064\u0020\u0028\u0065\u006d\u0070\u0074\u0079\u0029");};return MakeOperand (string (_feb )),nil ;};
|
||||
|
||||
// DebugString returns a descriptive string representation of the stack - intended for debugging.
|
||||
func (_dadb *PSStack )DebugString ()string {_degg :="\u005b\u0020";for _ ,_dcf :=range *_dadb {_degg +=_dcf .DebugString ();_degg +="\u0020";};_degg +="\u005d";return _degg ;};func (_fe *PSBoolean )String ()string {return _ed .Sprintf ("\u0025\u0076",_fe .Val )};
|
||||
// PSObjectArrayToFloat64Array converts []PSObject into a []float64 array. Each PSObject must represent a number,
|
||||
// otherwise a ErrTypeCheck error occurs.
|
||||
func PSObjectArrayToFloat64Array (objects []PSObject )([]float64 ,error ){var _ff []float64 ;for _ ,_ac :=range objects {if _acc ,_g :=_ac .(*PSInteger );_g {_ff =append (_ff ,float64 (_acc .Val ));}else if _eb ,_af :=_ac .(*PSReal );_af {_ff =append (_ff ,_eb .Val );}else {return nil ,ErrTypeCheck ;};};return _ff ,nil ;};func (_cag *PSOperand )add (_dac *PSStack )error {_bae ,_gcb :=_dac .Pop ();if _gcb !=nil {return _gcb ;};_baf ,_gcb :=_dac .Pop ();if _gcb !=nil {return _gcb ;};_bbd ,_dea :=_bae .(*PSReal );_ffg ,_df :=_bae .(*PSInteger );if !_dea &&!_df {return ErrTypeCheck ;};_dec ,_agf :=_baf .(*PSReal );_bdc ,_gbc :=_baf .(*PSInteger );if !_agf &&!_gbc {return ErrTypeCheck ;};if _df &&_gbc {_ffb :=_ffg .Val +_bdc .Val ;_gee :=_dac .Push (MakeInteger (_ffb ));return _gee ;};var _adg float64 =0;if _dea {_adg =_bbd .Val ;}else {_adg =float64 (_ffg .Val );};if _agf {_adg +=_dec .Val ;}else {_adg +=float64 (_bdc .Val );};_gcb =_dac .Push (MakeReal (_adg ));return _gcb ;};var ErrRangeCheck =_e .New ("\u0072\u0061\u006e\u0067\u0065\u0020\u0063\u0068\u0065\u0063\u006b\u0020e\u0072\u0072\u006f\u0072");func (_cce *PSOperand )lt (_cbfa *PSStack )error {_agcf ,_gag :=_cbfa .PopNumberAsFloat64 ();if _gag !=nil {return _gag ;};_fggb ,_gag :=_cbfa .PopNumberAsFloat64 ();if _gag !=nil {return _gag ;};if _eg .Abs (_fggb -_agcf )< _a {_cgc :=_cbfa .Push (MakeBool (false ));return _cgc ;}else if _fggb < _agcf {_dggb :=_cbfa .Push (MakeBool (true ));return _dggb ;}else {_bbdg :=_cbfa .Push (MakeBool (false ));return _bbdg ;};};func _abbb (_dfaa int )int {if _dfaa < 0{return -_dfaa ;};return _dfaa ;};var ErrUndefinedResult =_e .New ("\u0075\u006e\u0064\u0065fi\u006e\u0065\u0064\u0020\u0072\u0065\u0073\u0075\u006c\u0074\u0020\u0065\u0072\u0072o\u0072");func (_ag *PSProgram )DebugString ()string {_gb :="\u007b\u0020";for _ ,_ffc :=range *_ag {_gb +=_ffc .DebugString ();_gb +="\u0020";};_gb +="\u007d";return _gb ;};func (_agfa *PSOperand )div (_cda *PSStack )error {_dbd ,_dcge :=_cda .Pop ();if _dcge !=nil {return _dcge ;};_cdf ,_dcge :=_cda .Pop ();if _dcge !=nil {return _dcge ;};_bbcf ,_dd :=_dbd .(*PSReal );_acb ,_ada :=_dbd .(*PSInteger );if !_dd &&!_ada {return ErrTypeCheck ;};if _dd &&_bbcf .Val ==0{return ErrUndefinedResult ;};if _ada &&_acb .Val ==0{return ErrUndefinedResult ;};_fcg ,_bafe :=_cdf .(*PSReal );_eeb ,_gd :=_cdf .(*PSInteger );if !_bafe &&!_gd {return ErrTypeCheck ;};var _cca float64 =0;if _bafe {_cca =_fcg .Val ;}else {_cca =float64 (_eeb .Val );};if _dd {_cca /=_bbcf .Val ;}else {_cca /=float64 (_acb .Val );};_dcge =_cda .Push (MakeReal (_cca ));return _dcge ;};func (_ebab *PSOperand )mod (_fbd *PSStack )error {_adbe ,_gdgg :=_fbd .Pop ();if _gdgg !=nil {return _gdgg ;};_edg ,_gdgg :=_fbd .Pop ();if _gdgg !=nil {return _gdgg ;};_gfg ,_bcag :=_adbe .(*PSInteger );if !_bcag {return ErrTypeCheck ;};if _gfg .Val ==0{return ErrUndefinedResult ;};_ecc ,_bcag :=_edg .(*PSInteger );if !_bcag {return ErrTypeCheck ;};_cgdd :=_ecc .Val %_gfg .Val ;_gdgg =_fbd .Push (MakeInteger (_cgdd ));return _gdgg ;};func (_dcc *PSOperand )dup (_bcc *PSStack )error {_fgg ,_eggd :=_bcc .Pop ();if _eggd !=nil {return _eggd ;};_eggd =_bcc .Push (_fgg );if _eggd !=nil {return _eggd ;};_eggd =_bcc .Push (_fgg .Duplicate ());return _eggd ;};func (_ebd *PSOperand )bitshift (_dgb *PSStack )error {_dgf ,_ed :=_dgb .PopInteger ();if _ed !=nil {return _ed ;};_bgec ,_ed :=_dgb .PopInteger ();if _ed !=nil {return _ed ;};var _eca int ;if _dgf >=0{_eca =_bgec <<uint (_dgf );}else {_eca =_bgec >>uint (-_dgf );};_ed =_dgb .Push (MakeInteger (_eca ));return _ed ;};func (_cegf *PSOperand )atan (_dee *PSStack )error {_adb ,_aag :=_dee .PopNumberAsFloat64 ();if _aag !=nil {return _aag ;};_egg ,_aag :=_dee .PopNumberAsFloat64 ();if _aag !=nil {return _aag ;};if _adb ==0{var _bba error ;if _egg < 0{_bba =_dee .Push (MakeReal (270));}else {_bba =_dee .Push (MakeReal (90));};return _bba ;};_cdde :=_egg /_adb ;_dfgf :=_eg .Atan (_cdde )*180/_eg .Pi ;_aag =_dee .Push (MakeReal (_dfgf ));return _aag ;};
|
||||
|
||||
// PopNumberAsFloat64 pops and return the numeric value of the top of the stack as a float64.
|
||||
// Real or integer only.
|
||||
func (_fgaa *PSStack )PopNumberAsFloat64 ()(float64 ,error ){_affe ,_aebe :=_fgaa .Pop ();if _aebe !=nil {return 0,_aebe ;};if _ecd ,_gga :=_affe .(*PSReal );_gga {return _ecd .Val ,nil ;}else if _baea ,_deg :=_affe .(*PSInteger );_deg {return float64 (_baea .Val ),nil ;}else {return 0,ErrTypeCheck ;};};func (_gf *PSProgram )DebugString ()string {_bc :="\u007b\u0020";for _ ,_ef :=range *_gf {_bc +=_ef .DebugString ();_bc +="\u0020";};_bc +="\u007d";return _bc ;};func (_bee *PSOperand )cvi (_bca *PSStack )error {_bccb ,_dbga :=_bca .Pop ();if _dbga !=nil {return _dbga ;};if _ccc ,_bea :=_bccb .(*PSReal );_bea {_bef :=int (_ccc .Val );_dbga =_bca .Push (MakeInteger (_bef ));}else if _agdg ,_dec :=_bccb .(*PSInteger );_dec {_def :=_agdg .Val ;_dbga =_bca .Push (MakeInteger (_def ));}else {return ErrTypeCheck ;};return _dbga ;};
|
||||
func (_ccea *PSStack )PopNumberAsFloat64 ()(float64 ,error ){_ebc ,_gfa :=_ccea .Pop ();if _gfa !=nil {return 0,_gfa ;};if _bgfd ,_ffgd :=_ebc .(*PSReal );_ffgd {return _bgfd .Val ,nil ;}else if _gagc ,_ggd :=_ebc .(*PSInteger );_ggd {return float64 (_gagc .Val ),nil ;}else {return 0,ErrTypeCheck ;};};func (_ebb *PSOperand )sqrt (_gbag *PSStack )error {_fcfe ,_dcaa :=_gbag .PopNumberAsFloat64 ();if _dcaa !=nil {return _dcaa ;};if _fcfe < 0{return ErrRangeCheck ;};_gad :=_eg .Sqrt (_fcfe );_dcaa =_gbag .Push (MakeReal (_gad ));return _dcaa ;};func (_dce *PSOperand )cvr (_gbf *PSStack )error {_bbc ,_ega :=_gbf .Pop ();if _ega !=nil {return _ega ;};if _baa ,_ebf :=_bbc .(*PSReal );_ebf {_ega =_gbf .Push (MakeReal (_baa .Val ));}else if _bdad ,_dead :=_bbc .(*PSInteger );_dead {_ega =_gbf .Push (MakeReal (float64 (_bdad .Val )));}else {return ErrTypeCheck ;};return _ega ;};
|
||||
|
||||
// PSProgram defines a Postscript program which is a series of PS objects (arguments, commands, programs etc).
|
||||
type PSProgram []PSObject ;
|
||||
|
||||
// MakeBool returns a new PSBoolean object initialized with `val`.
|
||||
func MakeBool (val bool )*PSBoolean {_fadf :=PSBoolean {};_fadf .Val =val ;return &_fadf };func (_gcg *PSOperand )cvr (_cbe *PSStack )error {_ddgc ,_dbgg :=_cbe .Pop ();if _dbgg !=nil {return _dbgg ;};if _fga ,_bde :=_ddgc .(*PSReal );_bde {_dbgg =_cbe .Push (MakeReal (_fga .Val ));}else if _dcd ,_aaf :=_ddgc .(*PSInteger );_aaf {_dbgg =_cbe .Push (MakeReal (float64 (_dcd .Val )));}else {return ErrTypeCheck ;};return _dbgg ;};func (_cg *PSOperand )copy (_ceb *PSStack )error {_dfc ,_cef :=_ceb .PopInteger ();if _cef !=nil {return _cef ;};if _dfc < 0{return ErrRangeCheck ;};if _dfc > len (*_ceb ){return ErrRangeCheck ;};*_ceb =append (*_ceb ,(*_ceb )[len (*_ceb )-_dfc :]...);return nil ;};
|
||||
|
||||
// String returns a string representation of the stack.
|
||||
func (_gggc *PSStack )String ()string {_dad :="\u005b\u0020";for _ ,_ccfb :=range *_gggc {_dad +=_ccfb .String ();_dad +="\u0020";};_dad +="\u005d";return _dad ;};
|
||||
|
||||
// Push pushes an object on top of the stack.
|
||||
func (_cgc *PSStack )Push (obj PSObject )error {if len (*_cgc )> 100{return ErrStackOverflow ;};*_cgc =append (*_cgc ,obj );return nil ;};
|
||||
|
||||
// Pop pops an object from the top of the stack.
|
||||
func (_eedd *PSStack )Pop ()(PSObject ,error ){if len (*_eedd )< 1{return nil ,ErrStackUnderflow ;};_ggb :=(*_eedd )[len (*_eedd )-1];*_eedd =(*_eedd )[0:len (*_eedd )-1];return _ggb ,nil ;};
|
||||
|
||||
// PSOperand represents a Postscript operand (text string).
|
||||
type PSOperand string ;func (_fdg *PSOperand )mod (_ecg *PSStack )error {_fef ,_dgb :=_ecg .Pop ();if _dgb !=nil {return _dgb ;};_fbaf ,_dgb :=_ecg .Pop ();if _dgb !=nil {return _dgb ;};_aefg ,_agba :=_fef .(*PSInteger );if !_agba {return ErrTypeCheck ;};if _aefg .Val ==0{return ErrUndefinedResult ;};_cec ,_agba :=_fbaf .(*PSInteger );if !_agba {return ErrTypeCheck ;};_aed :=_cec .Val %_aefg .Val ;_dgb =_ecg .Push (MakeInteger (_aed ));return _dgb ;};
|
||||
// PSInteger represents an integer.
|
||||
type PSInteger struct{Val int ;};func (_bf *PSProgram )String ()string {_ca :="\u007b\u0020";for _ ,_afg :=range *_bf {_ca +=_afg .String ();_ca +="\u0020";};_ca +="\u007d";return _ca ;};func (_gae *PSOperand )ln (_edce *PSStack )error {_gdb ,_gacg :=_edce .PopNumberAsFloat64 ();if _gacg !=nil {return _gacg ;};_cabc :=_eg .Log (_gdb );_gacg =_edce .Push (MakeReal (_cabc ));return _gacg ;};
|
||||
|
||||
// Append appends an object to the PSProgram.
|
||||
func (_dc *PSProgram )Append (obj PSObject ){*_dc =append (*_dc ,obj )};func (_de *PSOperand )DebugString ()string {return _ed .Sprintf ("\u006fp\u003a\u0027\u0025\u0073\u0027",*_de );};func (_fba *PSOperand )index (_edg *PSStack )error {_gfa ,_bfe :=_edg .Pop ();if _bfe !=nil {return _bfe ;};_cbgd ,_eef :=_gfa .(*PSInteger );if !_eef {return ErrTypeCheck ;};if _cbgd .Val < 0{return ErrRangeCheck ;};if _cbgd .Val > len (*_edg )-1{return ErrStackUnderflow ;};_cacf :=(*_edg )[len (*_edg )-1-_cbgd .Val ];_bfe =_edg .Push (_cacf .Duplicate ());return _bfe ;};
|
||||
func (_aa *PSProgram )Append (obj PSObject ){*_aa =append (*_aa ,obj )};func (_bbg *PSOperand )ne (_cfaa *PSStack )error {_bbgd :=_bbg .eq (_cfaa );if _bbgd !=nil {return _bbgd ;};_bbgd =_bbg .not (_cfaa );return _bbgd ;};func (_ga *PSProgram )Duplicate ()PSObject {_db :=&PSProgram {};for _ ,_caf :=range *_ga {_db .Append (_caf .Duplicate ());};return _db ;};
|
||||
|
||||
// String returns a string representation of the stack.
|
||||
func (_gfee *PSStack )String ()string {_bdge :="\u005b\u0020";for _ ,_agfd :=range *_gfee {_bdge +=_agfd .String ();_bdge +="\u0020";};_bdge +="\u005d";return _bdge ;};
|
||||
|
||||
// PSObject represents a postscript object.
|
||||
type PSObject interface{
|
||||
@ -103,17 +56,64 @@ Duplicate ()PSObject ;
|
||||
DebugString ()string ;
|
||||
|
||||
// String returns a string representation of the PSObject.
|
||||
String ()string ;};
|
||||
String ()string ;};func (_ad *PSOperand )String ()string {return _fg .Sprintf ("\u0025\u0073",*_ad )};func (_gc *PSOperand )Duplicate ()PSObject {_fde :=*_gc ;return &_fde };func (_bbde *PSOperand )ceiling (_bda *PSStack )error {_decb ,_ace :=_bda .Pop ();if _ace !=nil {return _ace ;};if _efc ,_gef :=_decb .(*PSReal );_gef {_ace =_bda .Push (MakeReal (_eg .Ceil (_efc .Val )));}else if _deb ,_edb :=_decb .(*PSInteger );_edb {_ace =_bda .Push (MakeInteger (_deb .Val ));}else {_ace =ErrTypeCheck ;};return _ace ;};func (_bgge *PSParser )parseFunction ()(*PSProgram ,error ){_fge ,_ :=_bgge ._gde .ReadByte ();if _fge !='{'{return nil ,_e .New ("\u0069\u006ev\u0061\u006c\u0069d\u0020\u0066\u0075\u006e\u0063\u0074\u0069\u006f\u006e");};_gccd :=NewPSProgram ();for {_bgge .skipSpaces ();_fbdf ,_dbc :=_bgge ._gde .Peek (2);if _dbc !=nil {if _dbc ==_ea .EOF {break ;};return nil ,_dbc ;};_b .Log .Trace ("\u0050e\u0065k\u0020\u0073\u0074\u0072\u0069\u006e\u0067\u003a\u0020\u0025\u0073",string (_fbdf ));if _fbdf [0]=='}'{_b .Log .Trace ("\u0045\u004f\u0046 \u0066\u0075\u006e\u0063\u0074\u0069\u006f\u006e");_bgge ._gde .ReadByte ();break ;}else if _fbdf [0]=='{'{_b .Log .Trace ("\u0046u\u006e\u0063\u0074\u0069\u006f\u006e!");_fce ,_faa :=_bgge .parseFunction ();if _faa !=nil {return nil ,_faa ;};_gccd .Append (_fce );}else if _feb .IsDecimalDigit (_fbdf [0])||(_fbdf [0]=='-'&&_feb .IsDecimalDigit (_fbdf [1])){_b .Log .Trace ("\u002d>\u004e\u0075\u006d\u0062\u0065\u0072!");_bbgg ,_gcaa :=_bgge .parseNumber ();if _gcaa !=nil {return nil ,_gcaa ;};_gccd .Append (_bbgg );}else {_b .Log .Trace ("\u002d>\u004fp\u0065\u0072\u0061\u006e\u0064 \u006f\u0072 \u0062\u006f\u006f\u006c\u003f");_fbdf ,_ =_bgge ._gde .Peek (5);_fafb :=string (_fbdf );_b .Log .Trace ("\u0050\u0065\u0065k\u0020\u0073\u0074\u0072\u003a\u0020\u0025\u0073",_fafb );if (len (_fafb )> 4)&&(_fafb [:5]=="\u0066\u0061\u006cs\u0065"){_fbgc ,_abce :=_bgge .parseBool ();if _abce !=nil {return nil ,_abce ;};_gccd .Append (_fbgc );}else if (len (_fafb )> 3)&&(_fafb [:4]=="\u0074\u0072\u0075\u0065"){_afbf ,_baad :=_bgge .parseBool ();if _baad !=nil {return nil ,_baad ;};_gccd .Append (_afbf );}else {_aadb ,_cedb :=_bgge .parseOperand ();if _cedb !=nil {return nil ,_cedb ;};_gccd .Append (_aadb );};};};return _gccd ,nil ;};func (_dbdc *PSOperand )floor (_abc *PSStack )error {_cfa ,_gdd :=_abc .Pop ();if _gdd !=nil {return _gdd ;};if _cfe ,_cdbc :=_cfa .(*PSReal );_cdbc {_gdd =_abc .Push (MakeReal (_eg .Floor (_cfe .Val )));}else if _cac ,_ede :=_cfa .(*PSInteger );_ede {_gdd =_abc .Push (MakeInteger (_cac .Val ));}else {return ErrTypeCheck ;};return _gdd ;};const _a =0.000001;func (_gf *PSBoolean )String ()string {return _fg .Sprintf ("\u0025\u0076",_gf .Val )};func (_dbb *PSOperand )cvi (_dba *PSStack )error {_gabc ,_fgc :=_dba .Pop ();if _fgc !=nil {return _fgc ;};if _gebg ,_bef :=_gabc .(*PSReal );_bef {_afgb :=int (_gebg .Val );_fgc =_dba .Push (MakeInteger (_afgb ));}else if _cdbb ,_efa :=_gabc .(*PSInteger );_efa {_decd :=_cdbb .Val ;_fgc =_dba .Push (MakeInteger (_decd ));}else {return ErrTypeCheck ;};return _fgc ;};func (_gaa *PSOperand )roll (_gggf *PSStack )error {_caae ,_edcc :=_gggf .Pop ();if _edcc !=nil {return _edcc ;};_bcd ,_edcc :=_gggf .Pop ();if _edcc !=nil {return _edcc ;};_abae ,_ggae :=_caae .(*PSInteger );if !_ggae {return ErrTypeCheck ;};_bgag ,_ggae :=_bcd .(*PSInteger );if !_ggae {return ErrTypeCheck ;};if _bgag .Val < 0{return ErrRangeCheck ;};if _bgag .Val ==0||_bgag .Val ==1{return nil ;};if _bgag .Val > len (*_gggf ){return ErrStackUnderflow ;};for _fdb :=0;_fdb < _abbb (_abae .Val );_fdb ++{var _ggf []PSObject ;_ggf =(*_gggf )[len (*_gggf )-(_bgag .Val ):len (*_gggf )];if _abae .Val > 0{_ecee :=_ggf [len (_ggf )-1];_ggf =append ([]PSObject {_ecee },_ggf [0:len (_ggf )-1]...);}else {_cceb :=_ggf [len (_ggf )-_bgag .Val ];_ggf =append (_ggf [1:],_cceb );};_bgg :=append ((*_gggf )[0:len (*_gggf )-_bgag .Val ],_ggf ...);_gggf =&_bgg ;};return nil ;};
|
||||
|
||||
// DebugString returns a descriptive string representation of the stack - intended for debugging.
|
||||
func (_fdbd *PSStack )DebugString ()string {_dceca :="\u005b\u0020";for _ ,_bfcf :=range *_fdbd {_dceca +=_bfcf .DebugString ();_dceca +="\u0020";};_dceca +="\u005d";return _dceca ;};func (_gg *PSInteger )DebugString ()string {return _fg .Sprintf ("\u0069\u006e\u0074\u003a\u0025\u0064",_gg .Val );};func (_dc *PSInteger )String ()string {return _fg .Sprintf ("\u0025\u0064",_dc .Val )};func (_affd *PSOperand )mul (_bdgc *PSStack )error {_egd ,_ege :=_bdgc .Pop ();if _ege !=nil {return _ege ;};_ggg ,_ege :=_bdgc .Pop ();if _ege !=nil {return _ege ;};_afa ,_ffdf :=_egd .(*PSReal );_gbfb ,_abac :=_egd .(*PSInteger );if !_ffdf &&!_abac {return ErrTypeCheck ;};_baee ,_acfc :=_ggg .(*PSReal );_bad ,_fbg :=_ggg .(*PSInteger );if !_acfc &&!_fbg {return ErrTypeCheck ;};if _abac &&_fbg {_befc :=_gbfb .Val *_bad .Val ;_ffa :=_bdgc .Push (MakeInteger (_befc ));return _ffa ;};var _fef float64 =0;if _ffdf {_fef =_afa .Val ;}else {_fef =float64 (_gbfb .Val );};if _acfc {_fef *=_baee .Val ;}else {_fef *=float64 (_bad .Val );};_ege =_bdgc .Push (MakeReal (_fef ));return _ege ;};
|
||||
|
||||
// PSBoolean represents a boolean value.
|
||||
type PSBoolean struct{Val bool ;};
|
||||
type PSBoolean struct{Val bool ;};func (_bgf *PSOperand )abs (_gfd *PSStack )error {_gcc ,_bd :=_gfd .Pop ();if _bd !=nil {return _bd ;};if _ffe ,_ebe :=_gcc .(*PSReal );_ebe {_aca :=_ffe .Val ;if _aca < 0{_bd =_gfd .Push (MakeReal (-_aca ));}else {_bd =_gfd .Push (MakeReal (_aca ));};}else if _ece ,_fga :=_gcc .(*PSInteger );_fga {_gfe :=_ece .Val ;if _gfe < 0{_bd =_gfd .Push (MakeInteger (-_gfe ));}else {_bd =_gfd .Push (MakeInteger (_gfe ));};}else {return ErrTypeCheck ;};return _bd ;};func (_cga *PSOperand )exp (_aga *PSStack )error {_ced ,_bga :=_aga .PopNumberAsFloat64 ();if _bga !=nil {return _bga ;};_bcbf ,_bga :=_aga .PopNumberAsFloat64 ();if _bga !=nil {return _bga ;};if _eg .Abs (_ced )< 1&&_bcbf < 0{return ErrUndefinedResult ;};_dgg :=_eg .Pow (_bcbf ,_ced );_bga =_aga .Push (MakeReal (_dgg ));return _bga ;};func (_bb *PSReal )DebugString ()string {return _fg .Sprintf ("\u0072e\u0061\u006c\u003a\u0025\u002e\u0035f",_bb .Val );};func (_eggb *PSParser )parseNumber ()(PSObject ,error ){_eaga ,_adffa :=_feb .ParseNumber (_eggb ._gde );if _adffa !=nil {return nil ,_adffa ;};switch _gage :=_eaga .(type ){case *_feb .PdfObjectFloat :return MakeReal (float64 (*_gage )),nil ;case *_feb .PdfObjectInteger :return MakeInteger (int (*_gage )),nil ;};return nil ,_fg .Errorf ("\u0075n\u0068\u0061\u006e\u0064\u006c\u0065\u0064\u0020\u006e\u0075\u006db\u0065\u0072\u0020\u0074\u0079\u0070\u0065\u0020\u0025\u0054",_eaga );};var ErrUnsupportedOperand =_e .New ("\u0075\u006e\u0073\u0075pp\u006f\u0072\u0074\u0065\u0064\u0020\u006f\u0070\u0065\u0072\u0061\u006e\u0064");func (_abcf *PSParser )parseOperand ()(*PSOperand ,error ){var _dfe []byte ;for {_fbcb ,_abb :=_abcf ._gde .Peek (1);if _abb !=nil {if _abb ==_ea .EOF {break ;};return nil ,_abb ;};if _feb .IsDelimiter (_fbcb [0]){break ;};if _feb .IsWhiteSpace (_fbcb [0]){break ;};_bdd ,_ :=_abcf ._gde .ReadByte ();_dfe =append (_dfe ,_bdd );};if len (_dfe )==0{return nil ,_e .New ("\u0069\u006e\u0076al\u0069\u0064\u0020\u006f\u0070\u0065\u0072\u0061\u006e\u0064\u0020\u0028\u0065\u006d\u0070\u0074\u0079\u0029");};return MakeOperand (string (_dfe )),nil ;};func (_gfde *PSOperand )log (_fgcc *PSStack )error {_cadb ,_ddg :=_fgcc .PopNumberAsFloat64 ();if _ddg !=nil {return _ddg ;};_bbe :=_eg .Log10 (_cadb );_ddg =_fgcc .Push (MakeReal (_bbe ));return _ddg ;};
|
||||
|
||||
// Parse parses the postscript and store as a program that can be executed.
|
||||
func (_gdfa *PSParser )Parse ()(*PSProgram ,error ){_gdfa .skipSpaces ();_ccbc ,_gff :=_gdfa ._abgbc .Peek (2);if _gff !=nil {return nil ,_gff ;};if _ccbc [0]!='{'{return nil ,_e .New ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0050\u0053\u0020\u0050\u0072\u006f\u0067\u0072\u0061\u006d\u0020\u006e\u006f\u0074\u0020\u0073t\u0061\u0072\u0074\u0069\u006eg\u0020\u0077i\u0074\u0068\u0020\u007b");};_gcb ,_gff :=_gdfa .parseFunction ();if _gff !=nil &&_gff !=_bg .EOF {return nil ,_gff ;};return _gcb ,_gff ;};func (_ddc *PSOperand )abs (_fa *PSStack )error {_bac ,_gfg :=_fa .Pop ();if _gfg !=nil {return _gfg ;};if _abf ,_faf :=_bac .(*PSReal );_faf {_dfa :=_abf .Val ;if _dfa < 0{_gfg =_fa .Push (MakeReal (-_dfa ));}else {_gfg =_fa .Push (MakeReal (_dfa ));};}else if _fad ,_bb :=_bac .(*PSInteger );_bb {_ccd :=_fad .Val ;if _ccd < 0{_gfg =_fa .Push (MakeInteger (-_ccd ));}else {_gfg =_fa .Push (MakeInteger (_ccd ));};}else {return ErrTypeCheck ;};return _gfg ;};
|
||||
func (_bbdf *PSParser )Parse ()(*PSProgram ,error ){_bbdf .skipSpaces ();_dgff ,_dag :=_bbdf ._gde .Peek (2);if _dag !=nil {return nil ,_dag ;};if _dgff [0]!='{'{return nil ,_e .New ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0050\u0053\u0020\u0050\u0072\u006f\u0067\u0072\u0061\u006d\u0020\u006e\u006f\u0074\u0020\u0073t\u0061\u0072\u0074\u0069\u006eg\u0020\u0077i\u0074\u0068\u0020\u007b");};_abg ,_dag :=_bbdf .parseFunction ();if _dag !=nil &&_dag !=_ea .EOF {return nil ,_dag ;};return _abg ,_dag ;};func (_bea *PSOperand )ifelse (_aff *PSStack )error {_dbee ,_dbda :=_aff .Pop ();if _dbda !=nil {return _dbda ;};_gbg ,_dbda :=_aff .Pop ();if _dbda !=nil {return _dbda ;};_eba ,_dbda :=_aff .Pop ();if _dbda !=nil {return _dbda ;};_cea ,_gga :=_dbee .(*PSProgram );if !_gga {return ErrTypeCheck ;};_adf ,_gga :=_gbg .(*PSProgram );if !_gga {return ErrTypeCheck ;};_def ,_gga :=_eba .(*PSBoolean );if !_gga {return ErrTypeCheck ;};if _def .Val {_bebd :=_adf .Exec (_aff );return _bebd ;};_dbda =_cea .Exec (_aff );return _dbda ;};
|
||||
|
||||
// MakeInteger returns a new PSInteger object initialized with `val`.
|
||||
func MakeInteger (val int )*PSInteger {_aef :=PSInteger {};_aef .Val =val ;return &_aef };func (_ffd *PSBoolean )DebugString ()string {return _fg .Sprintf ("\u0062o\u006f\u006c\u003a\u0025\u0076",_ffd .Val );};func (_cbee *PSOperand )not (_bab *PSStack )error {_eccg ,_cgdg :=_bab .Pop ();if _cgdg !=nil {return _cgdg ;};if _aegg ,_cdbbg :=_eccg .(*PSBoolean );_cdbbg {_cgdg =_bab .Push (MakeBool (!_aegg .Val ));return _cgdg ;}else if _affe ,_bagf :=_eccg .(*PSInteger );_bagf {_cgdg =_bab .Push (MakeInteger (^_affe .Val ));return _cgdg ;}else {return ErrTypeCheck ;};};func (_edec *PSOperand )ge (_bage *PSStack )error {_bfe ,_bdg :=_bage .PopNumberAsFloat64 ();if _bdg !=nil {return _bdg ;};_adc ,_bdg :=_bage .PopNumberAsFloat64 ();if _bdg !=nil {return _bdg ;};if _eg .Abs (_adc -_bfe )< _a {_fad :=_bage .Push (MakeBool (true ));return _fad ;}else if _adc > _bfe {_fff :=_bage .Push (MakeBool (true ));return _fff ;}else {_cef :=_bage .Push (MakeBool (false ));return _cef ;};};func (_ee *PSReal )Duplicate ()PSObject {_aba :=PSReal {};_aba .Val =_ee .Val ;return &_aba };var ErrStackOverflow =_e .New ("\u0073\u0074\u0061\u0063\u006b\u0020\u006f\u0076\u0065r\u0066\u006c\u006f\u0077");
|
||||
|
||||
// NewPSExecutor returns an initialized PSExecutor for an input `program`.
|
||||
func NewPSExecutor (program *PSProgram )*PSExecutor {_de :=&PSExecutor {};_de .Stack =NewPSStack ();_de ._fb =program ;return _de ;};
|
||||
|
||||
// PSReal represents a real number.
|
||||
type PSReal struct{Val float64 ;};
|
||||
|
||||
// NewPSProgram returns an empty, initialized PSProgram.
|
||||
func NewPSProgram ()*PSProgram {return &PSProgram {}};func (_cd *PSReal )String ()string {return _fg .Sprintf ("\u0025\u002e\u0035\u0066",_cd .Val )};
|
||||
|
||||
// PSOperand represents a Postscript operand (text string).
|
||||
type PSOperand string ;
|
||||
|
||||
// Push pushes an object on top of the stack.
|
||||
func (_edee *PSStack )Push (obj PSObject )error {if len (*_edee )> 100{return ErrStackOverflow ;};*_edee =append (*_edee ,obj );return nil ;};
|
||||
|
||||
// Execute executes the program for an input parameters `objects` and returns a slice of output objects.
|
||||
func (_fd *PSExecutor )Execute (objects []PSObject )([]PSObject ,error ){for _ ,_bg :=range objects {_ec :=_fd .Stack .Push (_bg );if _ec !=nil {return nil ,_ec ;};};_bge :=_fd ._fb .Exec (_fd .Stack );if _bge !=nil {_b .Log .Debug ("\u0045x\u0065c\u0020\u0066\u0061\u0069\u006c\u0065\u0064\u003a\u0020\u0025\u0076",_bge );return nil ,_bge ;};_febb :=[]PSObject (*_fd .Stack );_fd .Stack .Empty ();return _febb ,nil ;};
|
||||
|
||||
// PSParser is a basic Postscript parser.
|
||||
type PSParser struct{_gde *_fe .Reader };func (_adff *PSOperand )or (_dcgb *PSStack )error {_befe ,_adac :=_dcgb .Pop ();if _adac !=nil {return _adac ;};_dca ,_adac :=_dcgb .Pop ();if _adac !=nil {return _adac ;};if _dgd ,_bgc :=_befe .(*PSBoolean );_bgc {_fbe ,_fcfb :=_dca .(*PSBoolean );if !_fcfb {return ErrTypeCheck ;};_adac =_dcgb .Push (MakeBool (_dgd .Val ||_fbe .Val ));return _adac ;};if _bgcg ,_faf :=_befe .(*PSInteger );_faf {_fbc ,_fdec :=_dca .(*PSInteger );if !_fdec {return ErrTypeCheck ;};_adac =_dcgb .Push (MakeInteger (_bgcg .Val |_fbc .Val ));return _adac ;};return ErrTypeCheck ;};func (_afe *PSParser )parseBool ()(*PSBoolean ,error ){_dcfb ,_fgef :=_afe ._gde .Peek (4);if _fgef !=nil {return MakeBool (false ),_fgef ;};if (len (_dcfb )>=4)&&(string (_dcfb [:4])=="\u0074\u0072\u0075\u0065"){_afe ._gde .Discard (4);return MakeBool (true ),nil ;};_dcfb ,_fgef =_afe ._gde .Peek (5);if _fgef !=nil {return MakeBool (false ),_fgef ;};if (len (_dcfb )>=5)&&(string (_dcfb [:5])=="\u0066\u0061\u006cs\u0065"){_afe ._gde .Discard (5);return MakeBool (false ),nil ;};return MakeBool (false ),_e .New ("\u0075n\u0065\u0078\u0070\u0065c\u0074\u0065\u0064\u0020\u0062o\u006fl\u0065a\u006e\u0020\u0073\u0074\u0072\u0069\u006eg");};func (_fcc *PSOperand )le (_ecf *PSStack )error {_eebg ,_cedc :=_ecf .PopNumberAsFloat64 ();if _cedc !=nil {return _cedc ;};_dcce ,_cedc :=_ecf .PopNumberAsFloat64 ();if _cedc !=nil {return _cedc ;};if _eg .Abs (_dcce -_eebg )< _a {_bgd :=_ecf .Push (MakeBool (true ));return _bgd ;}else if _dcce < _eebg {_bfbf :=_ecf .Push (MakeBool (true ));return _bfbf ;}else {_bfc :=_ecf .Push (MakeBool (false ));return _bfc ;};};func (_be *PSOperand )cos (_abe *PSStack )error {_beb ,_gfb :=_abe .PopNumberAsFloat64 ();if _gfb !=nil {return _gfb ;};_bgee :=_eg .Cos (_beb *_eg .Pi /180.0);_gfb =_abe .Push (MakeReal (_bgee ));return _gfb ;};
|
||||
|
||||
// PopInteger specificially pops an integer from the top of the stack, returning the value as an int.
|
||||
func (_ddbg *PSStack )PopInteger ()(int ,error ){_ebbe ,_aed :=_ddbg .Pop ();if _aed !=nil {return 0,_aed ;};if _abd ,_fee :=_ebbe .(*PSInteger );_fee {return _abd .Val ,nil ;};return 0,ErrTypeCheck ;};
|
||||
|
||||
// Exec executes the operand `op` in the state specified by `stack`.
|
||||
func (_aad *PSOperand )Exec (stack *PSStack )error {_cc :=ErrUnsupportedOperand ;switch *_aad {case "\u0061\u0062\u0073":_cc =_aad .abs (stack );case "\u0061\u0064\u0064":_cc =_aad .add (stack );case "\u0061\u006e\u0064":_cc =_aad .and (stack );case "\u0061\u0074\u0061\u006e":_cc =_aad .atan (stack );case "\u0062\u0069\u0074\u0073\u0068\u0069\u0066\u0074":_cc =_aad .bitshift (stack );case "\u0063e\u0069\u006c\u0069\u006e\u0067":_cc =_aad .ceiling (stack );case "\u0063\u006f\u0070\u0079":_cc =_aad .copy (stack );case "\u0063\u006f\u0073":_cc =_aad .cos (stack );case "\u0063\u0076\u0069":_cc =_aad .cvi (stack );case "\u0063\u0076\u0072":_cc =_aad .cvr (stack );case "\u0064\u0069\u0076":_cc =_aad .div (stack );case "\u0064\u0075\u0070":_cc =_aad .dup (stack );case "\u0065\u0071":_cc =_aad .eq (stack );case "\u0065\u0078\u0063\u0068":_cc =_aad .exch (stack );case "\u0065\u0078\u0070":_cc =_aad .exp (stack );case "\u0066\u006c\u006fo\u0072":_cc =_aad .floor (stack );case "\u0067\u0065":_cc =_aad .ge (stack );case "\u0067\u0074":_cc =_aad .gt (stack );case "\u0069\u0064\u0069\u0076":_cc =_aad .idiv (stack );case "\u0069\u0066":_cc =_aad .ifCondition (stack );case "\u0069\u0066\u0065\u006c\u0073\u0065":_cc =_aad .ifelse (stack );case "\u0069\u006e\u0064e\u0078":_cc =_aad .index (stack );case "\u006c\u0065":_cc =_aad .le (stack );case "\u006c\u006f\u0067":_cc =_aad .log (stack );case "\u006c\u006e":_cc =_aad .ln (stack );case "\u006c\u0074":_cc =_aad .lt (stack );case "\u006d\u006f\u0064":_cc =_aad .mod (stack );case "\u006d\u0075\u006c":_cc =_aad .mul (stack );case "\u006e\u0065":_cc =_aad .ne (stack );case "\u006e\u0065\u0067":_cc =_aad .neg (stack );case "\u006e\u006f\u0074":_cc =_aad .not (stack );case "\u006f\u0072":_cc =_aad .or (stack );case "\u0070\u006f\u0070":_cc =_aad .pop (stack );case "\u0072\u006f\u0075n\u0064":_cc =_aad .round (stack );case "\u0072\u006f\u006c\u006c":_cc =_aad .roll (stack );case "\u0073\u0069\u006e":_cc =_aad .sin (stack );case "\u0073\u0071\u0072\u0074":_cc =_aad .sqrt (stack );case "\u0073\u0075\u0062":_cc =_aad .sub (stack );case "\u0074\u0072\u0075\u006e\u0063\u0061\u0074\u0065":_cc =_aad .truncate (stack );case "\u0078\u006f\u0072":_cc =_aad .xor (stack );};return _cc ;};
|
||||
|
||||
// PSProgram defines a Postscript program which is a series of PS objects (arguments, commands, programs etc).
|
||||
type PSProgram []PSObject ;func (_faga *PSOperand )round (_cddd *PSStack )error {_bfd ,_dfa :=_cddd .Pop ();if _dfa !=nil {return _dfa ;};if _gba ,_gbe :=_bfd .(*PSReal );_gbe {_dfa =_cddd .Push (MakeReal (_eg .Floor (_gba .Val +0.5)));}else if _eage ,_caef :=_bfd .(*PSInteger );_caef {_dfa =_cddd .Push (MakeInteger (_eage .Val ));}else {return ErrTypeCheck ;};return _dfa ;};func (_ce *PSOperand )and (_fec *PSStack )error {_fa ,_aaf :=_fec .Pop ();if _aaf !=nil {return _aaf ;};_bc ,_aaf :=_fec .Pop ();if _aaf !=nil {return _aaf ;};if _dg ,_bde :=_fa .(*PSBoolean );_bde {_bca ,_eeg :=_bc .(*PSBoolean );if !_eeg {return ErrTypeCheck ;};_aaf =_fec .Push (MakeBool (_dg .Val &&_bca .Val ));return _aaf ;};if _efb ,_ceg :=_fa .(*PSInteger );_ceg {_dfg ,_cdb :=_bc .(*PSInteger );if !_cdb {return ErrTypeCheck ;};_aaf =_fec .Push (MakeInteger (_efb .Val &_dfg .Val ));return _aaf ;};return ErrTypeCheck ;};func (_da *PSBoolean )Duplicate ()PSObject {_ef :=PSBoolean {};_ef .Val =_da .Val ;return &_ef };
|
||||
|
||||
// Pop pops an object from the top of the stack.
|
||||
func (_cbeg *PSStack )Pop ()(PSObject ,error ){if len (*_cbeg )< 1{return nil ,ErrStackUnderflow ;};_egec :=(*_cbeg )[len (*_cbeg )-1];*_cbeg =(*_cbeg )[0:len (*_cbeg )-1];return _egec ,nil ;};func (_eed *PSOperand )xor (_bee *PSStack )error {_ddc ,_debg :=_bee .Pop ();if _debg !=nil {return _debg ;};_ecg ,_debg :=_bee .Pop ();if _debg !=nil {return _debg ;};if _bdb ,_aec :=_ddc .(*PSBoolean );_aec {_dedd ,_aeec :=_ecg .(*PSBoolean );if !_aeec {return ErrTypeCheck ;};_debg =_bee .Push (MakeBool (_bdb .Val !=_dedd .Val ));return _debg ;};if _fffb ,_dga :=_ddc .(*PSInteger );_dga {_gabd ,_abada :=_ecg .(*PSInteger );if !_abada {return ErrTypeCheck ;};_debg =_bee .Push (MakeInteger (_fffb .Val ^_gabd .Val ));return _debg ;};return ErrTypeCheck ;};var ErrStackUnderflow =_e .New ("\u0073t\u0061c\u006b\u0020\u0075\u006e\u0064\u0065\u0072\u0066\u006c\u006f\u0077");func (_ccf *PSParser )skipSpaces ()(int ,error ){_bfde :=0;for {_gcf ,_acda :=_ccf ._gde .Peek (1);if _acda !=nil {return 0,_acda ;};if _feb .IsWhiteSpace (_gcf [0]){_ccf ._gde .ReadByte ();_bfde ++;}else {break ;};};return _bfde ,nil ;};func (_gge *PSOperand )truncate (_afce *PSStack )error {_cgf ,_ecb :=_afce .Pop ();if _ecb !=nil {return _ecb ;};if _acdb ,_gcbc :=_cgf .(*PSReal );_gcbc {_cde :=int (_acdb .Val );_ecb =_afce .Push (MakeReal (float64 (_cde )));}else if _gfcd ,_fbec :=_cgf .(*PSInteger );_fbec {_ecb =_afce .Push (MakeInteger (_gfcd .Val ));}else {return ErrTypeCheck ;};return _ecb ;};func (_edba *PSOperand )index (_eeab *PSStack )error {_fcf ,_cad :=_eeab .Pop ();if _cad !=nil {return _cad ;};_bcae ,_fagd :=_fcf .(*PSInteger );if !_fagd {return ErrTypeCheck ;};if _bcae .Val < 0{return ErrRangeCheck ;};if _bcae .Val > len (*_eeab )-1{return ErrStackUnderflow ;};_adfe :=(*_eeab )[len (*_eeab )-1-_bcae .Val ];_cad =_eeab .Push (_adfe .Duplicate ());return _cad ;};
|
||||
|
||||
// NewPSParser returns a new instance of the PDF Postscript parser from input data.
|
||||
func NewPSParser (content []byte )*PSParser {_bdab :=PSParser {};_bagd :=_d .NewBuffer (content );_bdab ._gde =_fe .NewReader (_bagd );return &_bdab ;};
|
||||
|
||||
// MakeReal returns a new PSReal object initialized with `val`.
|
||||
func MakeReal (val float64 )*PSReal {_dbdb :=PSReal {};_dbdb .Val =val ;return &_dbdb };func (_egc *PSOperand )idiv (_egfe *PSStack )error {_dae ,_acd :=_egfe .Pop ();if _acd !=nil {return _acd ;};_ggb ,_acd :=_egfe .Pop ();if _acd !=nil {return _acd ;};_bce ,_gebb :=_dae .(*PSInteger );if !_gebb {return ErrTypeCheck ;};if _bce .Val ==0{return ErrUndefinedResult ;};_dfc ,_gebb :=_ggb .(*PSInteger );if !_gebb {return ErrTypeCheck ;};_fea :=_dfc .Val /_bce .Val ;_acd =_egfe .Push (MakeInteger (_fea ));return _acd ;};func (_geffc *PSOperand )pop (_baeb *PSStack )error {_ ,_gdc :=_baeb .Pop ();if _gdc !=nil {return _gdc ;};return nil ;};
|
||||
|
||||
// PSStack defines a stack of PSObjects. PSObjects can be pushed on or pull from the stack.
|
||||
type PSStack []PSObject ;
|
||||
|
||||
// Empty empties the stack.
|
||||
func (_dcff *PSStack )Empty (){*_dcff =[]PSObject {}};func (_aee *PSOperand )neg (_ccgb *PSStack )error {_gdf ,_acde :=_ccgb .Pop ();if _acde !=nil {return _acde ;};if _agd ,_dbbd :=_gdf .(*PSReal );_dbbd {_acde =_ccgb .Push (MakeReal (-_agd .Val ));return _acde ;}else if _eaa ,_bfa :=_gdf .(*PSInteger );_bfa {_acde =_ccgb .Push (MakeInteger (-_eaa .Val ));return _acde ;}else {return ErrTypeCheck ;};};func (_cdfa *PSOperand )exch (_fag *PSStack )error {_aeg ,_acf :=_fag .Pop ();if _acf !=nil {return _acf ;};_beff ,_acf :=_fag .Pop ();if _acf !=nil {return _acf ;};_acf =_fag .Push (_aeg );if _acf !=nil {return _acf ;};_acf =_fag .Push (_beff );return _acf ;};
|
||||
|
||||
// NewPSStack returns an initialized PSStack.
|
||||
func NewPSStack ()*PSStack {return &PSStack {}};func (_fdea *PSOperand )sub (_gag *PSStack )error {_bfba ,_fead :=_gag .Pop ();if _fead !=nil {return _fead ;};_dff ,_fead :=_gag .Pop ();if _fead !=nil {return _fead ;};_ebd ,_gfge :=_bfba .(*PSReal );_gdea ,_egd :=_bfba .(*PSInteger );if !_gfge &&!_egd {return ErrTypeCheck ;};_caf ,_cgb :=_dff .(*PSReal );_gcgb ,_bgag :=_dff .(*PSInteger );if !_cgb &&!_bgag {return ErrTypeCheck ;};if _egd &&_bgag {_ebbd :=_gcgb .Val -_gdea .Val ;_ebdg :=_gag .Push (MakeInteger (_ebbd ));return _ebdg ;};var _bfec float64 =0;if _cgb {_bfec =_caf .Val ;}else {_bfec =float64 (_gcgb .Val );};if _gfge {_bfec -=_ebd .Val ;}else {_bfec -=float64 (_gdea .Val );};_fead =_gag .Push (MakeReal (_bfec ));return _fead ;};func (_gcfd *PSOperand )ifelse (_ffa *PSStack )error {_fedd ,_cga :=_ffa .Pop ();if _cga !=nil {return _cga ;};_cgg ,_cga :=_ffa .Pop ();if _cga !=nil {return _cga ;};_ead ,_cga :=_ffa .Pop ();if _cga !=nil {return _cga ;};_bgae ,_bbdg :=_fedd .(*PSProgram );if !_bbdg {return ErrTypeCheck ;};_adc ,_bbdg :=_cgg .(*PSProgram );if !_bbdg {return ErrTypeCheck ;};_bgb ,_bbdg :=_ead .(*PSBoolean );if !_bbdg {return ErrTypeCheck ;};if _bgb .Val {_ddb :=_adc .Exec (_ffa );return _ddb ;};_cga =_bgae .Exec (_ffa );return _cga ;};func (_ff *PSOperand )atan (_bf *PSStack )error {_cac ,_acf :=_bf .PopNumberAsFloat64 ();if _acf !=nil {return _acf ;};_cacd ,_acf :=_bf .PopNumberAsFloat64 ();if _acf !=nil {return _acf ;};if _cac ==0{var _fb error ;if _cacd < 0{_fb =_bf .Push (MakeReal (270));}else {_fb =_bf .Push (MakeReal (90));};return _fb ;};_abg :=_cacd /_cac ;_ea :=_f .Atan (_abg )*180/_f .Pi ;_acf =_bf .Push (MakeReal (_ea ));return _acf ;};var ErrRangeCheck =_e .New ("\u0072\u0061\u006e\u0067\u0065\u0020\u0063\u0068\u0065\u0063\u006b\u0020e\u0072\u0072\u006f\u0072");
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// PSObjectArrayToFloat64Array converts []PSObject into a []float64 array. Each PSObject must represent a number,
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// otherwise a ErrTypeCheck error occurs.
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func PSObjectArrayToFloat64Array (objects []PSObject )([]float64 ,error ){var _ge []float64 ;for _ ,_gb :=range objects {if _eeg ,_d :=_gb .(*PSInteger );_d {_ge =append (_ge ,float64 (_eeg .Val ));}else if _dd ,_ab :=_gb .(*PSReal );_ab {_ge =append (_ge ,_dd .Val );}else {return nil ,ErrTypeCheck ;};};return _ge ,nil ;};var ErrStackOverflow =_e .New ("\u0073\u0074\u0061\u0063\u006b\u0020\u006f\u0076\u0065r\u0066\u006c\u006f\u0077");func (_egc *PSOperand )cos (_ace *PSStack )error {_bfb ,_cefc :=_ace .PopNumberAsFloat64 ();if _cefc !=nil {return _cefc ;};_eae :=_f .Cos (_bfb *_f .Pi /180.0);_cefc =_ace .Push (MakeReal (_eae ));return _cefc ;};var ErrStackUnderflow =_e .New ("\u0073t\u0061c\u006b\u0020\u0075\u006e\u0064\u0065\u0072\u0066\u006c\u006f\u0077");func (_edeg *PSOperand )ne (_aab *PSStack )error {_bcb :=_edeg .eq (_aab );if _bcb !=nil {return _bcb ;};_bcb =_edeg .not (_aab );return _bcb ;};
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func NewPSStack ()*PSStack {return &PSStack {}};func (_bag *PSOperand )eq (_ccg *PSStack )error {_cgd ,_geff :=_ccg .Pop ();if _geff !=nil {return _geff ;};_bcb ,_geff :=_ccg .Pop ();if _geff !=nil {return _geff ;};_cb ,_ccag :=_cgd .(*PSBoolean );_gfc ,_gac :=_bcb .(*PSBoolean );if _ccag ||_gac {var _afgd error ;if _ccag &&_gac {_afgd =_ccg .Push (MakeBool (_cb .Val ==_gfc .Val ));}else {_afgd =_ccg .Push (MakeBool (false ));};return _afgd ;};var _edbg float64 ;var _gebe float64 ;if _cbf ,_ggc :=_cgd .(*PSInteger );_ggc {_edbg =float64 (_cbf .Val );}else if _ae ,_agc :=_cgd .(*PSReal );_agc {_edbg =_ae .Val ;}else {return ErrTypeCheck ;};if _dfd ,_acbc :=_bcb .(*PSInteger );_acbc {_gebe =float64 (_dfd .Val );}else if _gff ,_bfb :=_bcb .(*PSReal );_bfb {_gebe =_gff .Val ;}else {return ErrTypeCheck ;};if _eg .Abs (_gebe -_edbg )< _a {_geff =_ccg .Push (MakeBool (true ));}else {_geff =_ccg .Push (MakeBool (false ));};return _geff ;};
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