unipdf/annotator/annotator.go

//
// Copyright 2020 FoxyUtils ehf. All rights reserved.
//
// This is a commercial product and requires a license to operate.
// A trial license can be obtained at https://unidoc.io
//
// DO NOT EDIT: generated by unitwist Go source code obfuscator.
//
// 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 annotator provides an interface for creating annotations with appearance
// streams.  It goes beyond the models package which includes definitions of basic annotation models, in that it
// can create the appearance streams which specify the exact appearance as needed by many pdf viewers for consistent
// appearance of the annotations.
// It also contains methods for generating appearance streams for fields via widget annotations.
package annotator ;import (_c "bytes";_e "errors";_fa "github.com/unidoc/unipdf/v3/common";_b "github.com/unidoc/unipdf/v3/contentstream";_df "github.com/unidoc/unipdf/v3/contentstream/draw";_fc "github.com/unidoc/unipdf/v3/core";_g "github.com/unidoc/unipdf/v3/internal/textencoding";
_bf "github.com/unidoc/unipdf/v3/model";_d "image";_cf "math";_a "strings";_fd "unicode";);func _gfab (_abc *_b .ContentCreator ,_dfe AppearanceStyle ,_aab ,_ddbb float64 ){_abc .Add_q ().Add_re (0,0,_aab ,_ddbb ).Add_re (0,_ddbb /2,_aab ,_ddbb /2).Add_re (0,0,_aab ,_ddbb ).Add_re (_aab /2,0,_aab /2,_ddbb ).Add_w (_dfe .BorderSize ).SetStrokingColor (_dfe .BorderColor ).SetNonStrokingColor (_dfe .FillColor ).Add_B ().Add_Q ();
};func _bcbd (_fedb RectangleAnnotationDef )(*_fc .PdfObjectDictionary ,*_bf .PdfRectangle ,error ){_cbba :=_bf .NewXObjectForm ();_cbba .Resources =_bf .NewPdfPageResources ();_acgc :="";if _fedb .Opacity < 1.0{_acda :=_fc .MakeDict ();_acda .Set ("\u0063\u0061",_fc .MakeFloat (_fedb .Opacity ));
_acda .Set ("\u0043\u0041",_fc .MakeFloat (_fedb .Opacity ));_cadb :=_cbba .Resources .AddExtGState ("\u0067\u0073\u0031",_acda );if _cadb !=nil {_fa .Log .Debug ("U\u006e\u0061\u0062\u006c\u0065\u0020t\u006f\u0020\u0061\u0064\u0064\u0020\u0065\u0078\u0074g\u0073\u0074\u0061t\u0065 \u0067\u0073\u0031");
return nil ,nil ,_cadb ;};_acgc ="\u0067\u0073\u0031";};_bfcd ,_bgd ,_ddeb ,_eaeg :=_abgf (_fedb ,_acgc );if _eaeg !=nil {return nil ,nil ,_eaeg ;};_eaeg =_cbba .SetContentStream (_bfcd ,nil );if _eaeg !=nil {return nil ,nil ,_eaeg ;};_cbba .BBox =_bgd .ToPdfObject ();
_faac :=_fc .MakeDict ();_faac .Set ("\u004e",_cbba .ToPdfObject ());return _faac ,_ddeb ,nil ;};func _cbeda (_ffbc *_bf .PdfFieldButton ,_fbed *_bf .PdfAnnotationWidget ,_dcef AppearanceStyle )(*_fc .PdfObjectDictionary ,error ){_cbgd ,_fcdg :=_fc .GetArray (_fbed .Rect );
if !_fcdg {return nil ,_e .New ("\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0052\u0065\u0063\u0074");};_aga ,_effg :=_bf .NewPdfRectangle (*_cbgd );if _effg !=nil {return nil ,_effg ;};_bfa ,_agde :=_aga .Width (),_aga .Height ();_fgfg :=_b .NewContentCreator ();
if _dcef .BorderSize > 0{_aegb (_fgfg ,_dcef ,_bfa ,_agde );};if _dcef .DrawAlignmentReticle {_gef :=_dcef ;_gef .BorderSize =0.2;_gfab (_fgfg ,_gef ,_bfa ,_agde );};_bdee :=_ffbc .GetFillImage ();_bcbe ,_effg :=_addg (_bfa ,_agde ,_bdee ,_dcef );if _effg !=nil {return nil ,_effg ;
};_def ,_egeb :=_fc .GetDict (_fbed .MK );if _egeb {_def .Set ("\u006c",_bcbe .ToPdfObject ());};_adfaf :=_fc .MakeDict ();_adfaf .Set ("\u0046\u0052\u004d",_bcbe .ToPdfObject ());_ceb :=_bf .NewPdfPageResources ();_ceb .ProcSet =_fc .MakeArray (_fc .MakeName ("\u0050\u0044\u0046"));
_ceb .XObject =_adfaf ;_efce :=_bfa -2;_baeb :=_agde -2;_fgfg .Add_q ();_fgfg .Add_re (1,1,_efce ,_baeb );_fgfg .Add_W ();_fgfg .Add_n ();_efce -=2;_baeb -=2;_fgfg .Add_q ();_fgfg .Add_re (2,2,_efce ,_baeb );_fgfg .Add_W ();_fgfg .Add_n ();_ced :=_cf .Min (_efce /float64 (_bdee .Width ),_baeb /float64 (_bdee .Height ));
_fgfg .Add_cm (_ced ,0,0,_ced ,(_bfa /2)-(float64 (_bdee .Width )*_ced /2)+2,2);_fgfg .Add_Do ("\u0046\u0052\u004d");_fgfg .Add_Q ();_fgfg .Add_Q ();_cgad :=_bf .NewXObjectForm ();_cgad .FormType =_fc .MakeInteger (1);_cgad .Resources =_ceb ;_cgad .BBox =_fc .MakeArrayFromFloats ([]float64 {0,0,_bfa ,_agde });
_cgad .Matrix =_fc .MakeArrayFromFloats ([]float64 {1.0,0.0,0.0,1.0,0.0,0.0});_cgad .SetContentStream (_fgfg .Bytes (),_bcgc ());_fede :=_fc .MakeDict ();_fede .Set ("\u004e",_cgad .ToPdfObject ());return _fede ,nil ;};

// SignatureFieldOpts represents a set of options used to configure
// an appearance widget dictionary.
type SignatureFieldOpts struct{

// Rect represents the area the signature annotation is displayed on.
Rect []float64 ;

// AutoSize specifies if the content of the appearance should be
// scaled to fit in the annotation rectangle.
AutoSize bool ;

// Font specifies the font of the text content.
Font *_bf .PdfFont ;

// FontSize specifies the size of the text content.
FontSize float64 ;

// LineHeight specifies the height of a line of text in the appearance annotation.
LineHeight float64 ;

// TextColor represents the color of the text content displayed.
TextColor _bf .PdfColor ;

// FillColor represents the background color of the appearance annotation area.
FillColor _bf .PdfColor ;

// BorderSize represents border size of the appearance annotation area.
BorderSize float64 ;

// BorderColor represents the border color of the appearance annotation area.
BorderColor _bf .PdfColor ;

// WatermarkImage specifies the image used as a watermark that will be rendered
// behind the signature.
WatermarkImage _d .Image ;

// Image represents the image used for the signature appearance.
Image _d .Image ;

// Encoder specifies the image encoder used for image signature. Defaults to flate encoder.
Encoder _fc .StreamEncoder ;

// ImagePosition specifies the image location relative to the text signature.
ImagePosition SignatureImagePosition ;};func _acgb (_age LineAnnotationDef ,_agcb string )([]byte ,*_bf .PdfRectangle ,*_bf .PdfRectangle ,error ){_cdbf :=_df .Line {X1 :0,Y1 :0,X2 :_age .X2 -_age .X1 ,Y2 :_age .Y2 -_age .Y1 ,LineColor :_age .LineColor ,Opacity :_age .Opacity ,LineWidth :_age .LineWidth ,LineEndingStyle1 :_age .LineEndingStyle1 ,LineEndingStyle2 :_age .LineEndingStyle2 };
_fffe ,_deg ,_afd :=_cdbf .Draw (_agcb );if _afd !=nil {return nil ,nil ,nil ,_afd ;};_bcf :=&_bf .PdfRectangle {};_bcf .Llx =_age .X1 +_deg .Llx ;_bcf .Lly =_age .Y1 +_deg .Lly ;_bcf .Urx =_age .X1 +_deg .Urx ;_bcf .Ury =_age .Y1 +_deg .Ury ;return _fffe ,_deg ,_bcf ,nil ;
};

// SignatureImagePosition specifies the image signature location relative to the text signature.
// If text signature is not defined, this position will be ignored.
type SignatureImagePosition int ;func _bdcf (_ecf *_bf .PdfField )string {if _ecf ==nil {return "";};_cfd ,_cdeb :=_ecf .GetContext ().(*_bf .PdfFieldText );if !_cdeb {return _bdcf (_ecf .Parent );};if _cfd .DA !=nil {return _cfd .DA .Str ();};return _bdcf (_cfd .Parent );
};func _bcbf (_bcdc _d .Image ,_egde string ,_aed *SignatureFieldOpts ,_fbe []float64 ,_ddff *_b .ContentCreator )(*_fc .PdfObjectName ,*_bf .XObjectImage ,error ){_geac ,_bage :=_bf .DefaultImageHandler {}.NewImageFromGoImage (_bcdc );if _bage !=nil {return nil ,nil ,_bage ;
};_egda ,_bage :=_bf .NewXObjectImageFromImage (_geac ,nil ,_aed .Encoder );if _bage !=nil {return nil ,nil ,_bage ;};_dcda ,_cagd :=float64 (*_egda .Width ),float64 (*_egda .Height );_dda :=_fbe [2]-_fbe [0];_effe :=_fbe [3]-_fbe [1];if _aed .AutoSize {_dde :=_cf .Min (_dda /_dcda ,_effe /_cagd );
_dcda *=_dde ;_cagd *=_dde ;_fbe [0]=_fbe [0]+(_dda /2)-(_dcda /2);_fbe [1]=_fbe [1]+(_effe /2)-(_cagd /2);};var _aefae *_fc .PdfObjectName ;if _dce ,_ggfgc :=_fc .GetName (_egda .Name );_ggfgc {_aefae =_dce ;}else {_aefae =_fc .MakeName (_egde );};if _ddff !=nil {_ddff .Add_q ().Translate (_fbe [0],_fbe [1]).Scale (_dcda ,_cagd ).Add_Do (*_aefae ).Add_Q ();
}else {return nil ,nil ,_e .New ("\u0043\u006f\u006e\u0074en\u0074\u0043\u0072\u0065\u0061\u0074\u006f\u0072\u0020\u0069\u0073\u0020\u006e\u0075l\u006c");};return _aefae ,_egda ,nil ;};

// LineAnnotationDef defines a line 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 LineAnnotationDef struct{X1 float64 ;Y1 float64 ;X2 float64 ;Y2 float64 ;LineColor *_bf .PdfColorDeviceRGB ;Opacity float64 ;LineWidth float64 ;LineEndingStyle1 _df .LineEndingStyle ;LineEndingStyle2 _df .LineEndingStyle ;};

// NewComboboxField generates a new combobox form field with partial name `name` at location `rect`
// on specified `page` and with field specific options `opt`.
func NewComboboxField (page *_bf .PdfPage ,name string ,rect []float64 ,opt ComboboxFieldOptions )(*_bf .PdfFieldChoice ,error ){if page ==nil {return nil ,_e .New ("\u0070a\u0067e\u0020\u006e\u006f\u0074\u0020s\u0070\u0065c\u0069\u0066\u0069\u0065\u0064");
};if len (name )<=0{return nil ,_e .New ("\u0072\u0065\u0071\u0075\u0069\u0072\u0065\u0064\u0020\u0061\u0074\u0074\u0072\u0069\u0062u\u0074e\u0020\u006e\u006f\u0074\u0020\u0073\u0070\u0065\u0063\u0069\u0066\u0069\u0065\u0064");};if len (rect )!=4{return nil ,_e .New ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0072\u0061\u006e\u0067\u0065");
};_deee :=_bf .NewPdfField ();_becc :=&_bf .PdfFieldChoice {};_deee .SetContext (_becc );_becc .PdfField =_deee ;_becc .T =_fc .MakeString (name );_becc .Opt =_fc .MakeArray ();for _ ,_geca :=range opt .Choices {_becc .Opt .Append (_fc .MakeString (_geca ));
};_becc .SetFlag (_bf .FieldFlagCombo );_cada :=_bf .NewPdfAnnotationWidget ();_cada .Rect =_fc .MakeArrayFromFloats (rect );_cada .P =page .ToPdfObject ();_cada .F =_fc .MakeInteger (4);_cada .Parent =_becc .ToPdfObject ();_becc .Annotations =append (_becc .Annotations ,_cada );
return _becc ,nil ;};

// ImageFieldOptions defines optional parameters for a push button with image attach capability form field.
type ImageFieldOptions struct{Image *_bf .Image ;_bba AppearanceStyle ;};

// CheckboxFieldOptions defines optional parameters for a checkbox field a form.
type CheckboxFieldOptions struct{Checked bool ;};func _dcf (_edfb *_bf .PdfField ,_gfd ,_ffcc float64 ,_dbc string ,_bed AppearanceStyle ,_ede *_b .ContentStreamOperations ,_acc *_bf .PdfPageResources ,_accb *_fc .PdfObjectDictionary )(*_bf .XObjectForm ,error ){_ebea :=_bf .NewPdfPageResources ();
_dac ,_fgd :=_gfd ,_ffcc ;_gge :=_b .NewContentCreator ();if _bed .BorderSize > 0{_aegb (_gge ,_bed ,_gfd ,_ffcc );};if _bed .DrawAlignmentReticle {_agc :=_bed ;_agc .BorderSize =0.2;_gfab (_gge ,_agc ,_gfd ,_ffcc );};_gge .Add_BMC ("\u0054\u0078");_gge .Add_q ();
_gge .Add_BT ();_gfd ,_ffcc =_bed .applyRotation (_accb ,_gfd ,_ffcc ,_gge );_debf ,_gbga ,_cbf :=_bed .processDA (_edfb ,_ede ,_acc ,_ebea ,_gge );if _cbf !=nil {return nil ,_cbf ;};_cdgc :=_debf .Font ;_ccg :=_debf .Size ;_cgaf :=_fc .MakeName (_debf .Name );
_bae :=_ccg ==0;if _bae &&_gbga {_ccg =_ffcc *_bed .AutoFontSizeFraction ;};_aag :=_cdgc .Encoder ();if _aag ==nil {_fa .Log .Debug ("\u0057\u0041RN\u003a\u0020\u0066\u006f\u006e\u0074\u0020\u0065\u006e\u0063\u006f\u0064\u0065\u0072\u0020\u0069\u0073\u0020\u006e\u0069l\u002e\u0020\u0041\u0073s\u0075\u006d\u0069\u006eg \u0069\u0064e\u006et\u0069\u0074\u0079\u0020\u0065\u006ec\u006f\u0064\u0065r\u002e\u0020O\u0075\u0074\u0070\u0075\u0074\u0020\u006d\u0061\u0079\u0020\u0062\u0065\u0020\u0069n\u0063\u006f\u0072\u0072\u0065\u0063\u0074\u002e");
_aag =_g .NewIdentityTextEncoder ("\u0049\u0064\u0065\u006e\u0074\u0069\u0074\u0079\u002d\u0048");};if len (_dbc )==0{return nil ,nil ;};_gfgd :=_ggb ;if _bed .MarginLeft !=nil {_gfgd =*_bed .MarginLeft ;};_ecd :=0.0;if _aag !=nil {for _ ,_gfdf :=range _dbc {_eab ,_ccdb :=_cdgc .GetRuneMetrics (_gfdf );
if !_ccdb {_fa .Log .Debug ("\u0046\u006f\u006e\u0074\u0020\u0064o\u0065\u0073\u0020\u006e\u006f\u0074\u0020\u0068\u0061\u0076\u0065\u0020\u0072\u0075\u006e\u0065\u0020\u006d\u0065\u0074r\u0069\u0063\u0073\u0020\u0066\u006f\u0072\u0020\u0025\u0076\u0020\u002d\u0020\u0073k\u0069p\u0070\u0069\u006e\u0067",_gfdf );
continue ;};_ecd +=_eab .Wx ;};_dbc =string (_aag .Encode (_dbc ));};if _ccg ==0||_bae &&_ecd > 0&&_gfgd +_ecd *_ccg /1000.0> _gfd {_ccg =0.95*1000.0*(_gfd -_gfgd )/_ecd ;};_bda :=1.0*_ccg ;_bcg :=2.0;{_fgdf :=_bda ;if _bae &&_bcg +_fgdf > _ffcc {_ccg =0.95*(_ffcc -_bcg );
_bda =1.0*_ccg ;_fgdf =_bda ;};if _ffcc > _fgdf {_bcg =(_ffcc -_fgdf )/2.0;_bcg +=1.50;};};_gge .Add_Tf (*_cgaf ,_ccg );_gge .Add_Td (_gfgd ,_bcg );_gge .Add_Tj (*_fc .MakeString (_dbc ));_gge .Add_ET ();_gge .Add_Q ();_gge .Add_EMC ();_cef :=_bf .NewXObjectForm ();
_cef .Resources =_ebea ;_cef .BBox =_fc .MakeArrayFromFloats ([]float64 {0,0,_dac ,_fgd });_cef .SetContentStream (_gge .Bytes (),_bcgc ());return _cef ,nil ;};func _fef (_cfb *_bf .PdfAnnotationWidget ,_eb *_bf .PdfFieldText ,_ggc *_bf .PdfPageResources ,_fga AppearanceStyle )(*_fc .PdfObjectDictionary ,error ){_aa :=_bf .NewPdfPageResources ();
_feg ,_ag :=_fc .GetArray (_cfb .Rect );if !_ag {return nil ,_e .New ("\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0052\u0065\u0063\u0074");};_gb ,_aaf :=_bf .NewPdfRectangle (*_feg );if _aaf !=nil {return nil ,_aaf ;};_ece ,_fbd :=_gb .Width (),_gb .Height ();
_edd ,_efa :=_ece ,_fbd ;_cbb ,_fda :=_fc .GetDict (_cfb .MK );if _fda {_edb ,_ :=_fc .GetDict (_cfb .BS );_ffd :=_fga .applyAppearanceCharacteristics (_cbb ,_edb ,nil );if _ffd !=nil {return nil ,_ffd ;};};_bag ,_aaf :=_b .NewContentStreamParser (_bdcf (_eb .PdfField )).Parse ();
if _aaf !=nil {return nil ,_aaf ;};_dbf :=_b .NewContentCreator ();if _fga .BorderSize > 0{_aegb (_dbf ,_fga ,_ece ,_fbd );};if _fga .DrawAlignmentReticle {_fdba :=_fga ;_fdba .BorderSize =0.2;_gfab (_dbf ,_fdba ,_ece ,_fbd );};_dbf .Add_BMC ("\u0054\u0078");
_dbf .Add_q ();_ece ,_fbd =_fga .applyRotation (_cbb ,_ece ,_fbd ,_dbf );_dbf .Add_BT ();_bfb ,_gafb ,_aaf :=_fga .processDA (_eb .PdfField ,_bag ,_ggc ,_aa ,_dbf );if _aaf !=nil {return nil ,_aaf ;};_ea :=_bfb .Font ;_ffb :=_bfb .Size ;_bagd :=_fc .MakeName (_bfb .Name );
_cgf :=_ffb ==0;if _cgf &&_gafb {_ffb =_fbd *_fga .AutoFontSizeFraction ;};_fff :=_ea .Encoder ();if _fff ==nil {_fa .Log .Debug ("\u0057\u0041RN\u003a\u0020\u0066\u006f\u006e\u0074\u0020\u0065\u006e\u0063\u006f\u0064\u0065\u0072\u0020\u0069\u0073\u0020\u006e\u0069l\u002e\u0020\u0041\u0073s\u0075\u006d\u0069\u006eg \u0069\u0064e\u006et\u0069\u0074\u0079\u0020\u0065\u006ec\u006f\u0064\u0065r\u002e\u0020O\u0075\u0074\u0070\u0075\u0074\u0020\u006d\u0061\u0079\u0020\u0062\u0065\u0020\u0069n\u0063\u006f\u0072\u0072\u0065\u0063\u0074\u002e");
_fff =_g .NewIdentityTextEncoder ("\u0049\u0064\u0065\u006e\u0074\u0069\u0074\u0079\u002d\u0048");};_ggbb ,_aaf :=_ea .GetFontDescriptor ();if _aaf !=nil {_fa .Log .Debug ("\u0045\u0072ro\u0072\u003a\u0020U\u006e\u0061\u0062\u006ce t\u006f g\u0065\u0074\u0020\u0066\u006f\u006e\u0074 d\u0065\u0073\u0063\u0072\u0069\u0070\u0074o\u0072");
};var _be string ;if _feb ,_bff :=_fc .GetString (_eb .V );_bff {_be =_feb .Decoded ();};if len (_be )==0{return nil ,nil ;};_cab :=[]string {_be };_cd :=false ;if _eb .Flags ().Has (_bf .FieldFlagMultiline ){_cd =true ;_be =_a .Replace (_be ,"\u000d\u000a","\u000a",-1);
_be =_a .Replace (_be ,"\u000d","\u000a",-1);_cab =_a .Split (_be ,"\u000a");};_efc :=make ([]string ,len (_cab ));copy (_efc ,_cab );_dgb :=_fga .MultilineLineHeight ;_cfa :=0.0;_ffc :=0;if _fff !=nil {for _ffb >=0{_cabe :=make ([]string ,len (_cab ));
copy (_cabe ,_cab );_bec :=make ([]string ,len (_efc ));copy (_bec ,_efc );_cfa =0.0;_ffc =0;_cba :=len (_cabe );_gd :=0;for _gd < _cba {var _eaa float64 ;_afb :=-1;_dgf :=_ggb ;if _fga .MarginLeft !=nil {_dgf =*_fga .MarginLeft ;};for _baf ,_effd :=range _cabe [_gd ]{if _effd ==' '{_afb =_baf ;
_eaa =_dgf ;};_add ,_gff :=_ea .GetRuneMetrics (_effd );if !_gff {_fa .Log .Debug ("\u0046\u006f\u006e\u0074\u0020\u0064o\u0065\u0073\u0020\u006e\u006f\u0074\u0020\u0068\u0061\u0076\u0065\u0020\u0072\u0075\u006e\u0065\u0020\u006d\u0065\u0074r\u0069\u0063\u0073\u0020\u0066\u006f\u0072\u0020\u0025\u0076\u0020\u002d\u0020\u0073k\u0069p\u0070\u0069\u006e\u0067",_effd );
continue ;};_dgf +=_add .Wx ;if _cd &&!_cgf &&_ffb *_dgf /1000.0> _ece &&_afb > 0{_aef :=_cabe [_gd ][_afb +1:];_fgg :=_bec [_gd ][_afb +1:];if _gd < len (_cabe )-1{_cabe =append (_cabe [:_gd +1],_cabe [_gd :]...);_cabe [_gd +1]=_aef ;_bec =append (_bec [:_gd +1],_bec [_gd :]...);
_bec [_gd +1]=_fgg ;}else {_cabe =append (_cabe ,_aef );_bec =append (_bec ,_fgg );};_cba ++;_cabe [_gd ]=_cabe [_gd ][0:_afb ];_bec [_gd ]=_bec [_gd ][0:_afb ];_dgf =_eaa ;break ;};};if _dgf > _cfa {_cfa =_dgf ;};_cabe [_gd ]=string (_fff .Encode (_cabe [_gd ]));
if len (_cabe [_gd ])> 0{_ffc ++;};_gd ++;};_cdg :=_ffb ;if _ffc > 1{_cdg *=_dgb ;};_cag :=float64 (_ffc )*_cdg ;if _cgf ||_cag <=_fbd {_cab =_cabe ;_efc =_bec ;break ;};_ffb --;};};_bgc :=_ggb ;if _fga .MarginLeft !=nil {_bgc =*_fga .MarginLeft ;};if _ffb ==0||_cgf &&_cfa > 0&&_bgc +_cfa *_ffb /1000.0> _ece {_ffb =0.95*1000.0*(_ece -_bgc )/_cfa ;
};_baga :=_ac ;{if _ebd ,_cca :=_fc .GetIntVal (_eb .Q );_cca {switch _ebd {case 0:_baga =_ac ;case 1:_baga =_fdd ;case 2:_baga =_acg ;default:_fa .Log .Debug ("\u0045\u0052\u0052\u004f\u0052\u003a\u0020\u0055\u006e\u0073\u0075\u0070\u0070\u006f\u0072t\u0065\u0064\u0020\u0071\u0075\u0061\u0064\u0064\u0069\u006e\u0067\u003a\u0020%\u0064\u0020\u002d\u0020\u0075\u0073\u0069\u006e\u0067\u0020\u006c\u0065ft\u0020\u0061\u006c\u0069\u0067\u006e\u006d\u0065\u006e\u0074",_ebd );
};};};_bbc :=_ffb ;if _cd &&_ffc > 1{_bbc =_dgb *_ffb ;};var _gda float64 ;if _ggbb !=nil {_gda ,_aaf =_ggbb .GetCapHeight ();if _aaf !=nil {_fa .Log .Debug ("\u0045\u0052\u0052\u004f\u0052\u003a\u0020\u0055\u006e\u0061\u0062\u006c\u0065 \u0074\u006f\u0020\u0067\u0065\u0074 \u0066\u006f\u006e\u0074\u0020\u0043\u0061\u0070\u0048\u0065\u0069\u0067\u0068t\u003a\u0020\u0025\u0076",_aaf );
};};if int (_gda )<=0{_fa .Log .Debug ("W\u0041\u0052\u004e\u003a\u0020\u0043\u0061\u0070\u0048e\u0069\u0067\u0068\u0074\u0020\u006e\u006ft \u0061\u0076\u0061\u0069l\u0061\u0062\u006c\u0065\u0020\u002d\u0020\u0073\u0065tt\u0069\u006eg\u0020\u0074\u006f\u0020\u0031\u0030\u0030\u0030");
_gda =1000;};_ebb :=_gda /1000.0*_ffb ;_fabb :=0.0;{_fdbd :=float64 (_ffc )*_bbc ;if _cgf &&_fabb +_fdbd > _fbd {_ffb =0.95*(_fbd -_fabb )/float64 (_ffc );_bbc =_ffb ;if _cd &&_ffc > 1{_bbc =_dgb *_ffb ;};_ebb =_gda /1000.0*_ffb ;_fdbd =float64 (_ffc )*_bbc ;
};if _fbd > _fdbd {if _cd {if _fga .MultilineVAlignMiddle {_ded :=(_fbd -(_fdbd +_ebb ))/2.0;_ce :=_ded +_fdbd +_ebb -_bbc ;_fabb =_ce ;if _ffc > 1{_fabb =_fabb +(_fdbd /_ffb *float64 (_ffc ))-_bbc -_ebb ;};if _fabb < _fdbd {_fabb =(_fbd -_ebb )/2.0;};
}else {_fabb =_fbd -_bbc ;if _fabb > _ffb {_fabb -=_ffb *0.5;};};}else {_fabb =(_fbd -_ebb )/2.0;};};};_dbf .Add_Tf (*_bagd ,_ffb );_dbf .Add_Td (_bgc ,_fabb );_ebe :=_bgc ;_afg :=_bgc ;for _efaf ,_dbed :=range _cab {_cfaa :=0.0;for _ ,_gba :=range _efc [_efaf ]{_edc ,_afe :=_ea .GetRuneMetrics (_gba );
if !_afe {continue ;};_cfaa +=_edc .Wx ;};_edg :=_cfaa /1000.0*_ffb ;_cac :=_ece -_edg ;var _cfag float64 ;switch _baga {case _ac :_cfag =_ebe ;case _fdd :_cfag =_cac /2;case _acg :_cfag =_cac ;};_bgc =_cfag -_afg ;if _bgc > 0.0{_dbf .Add_Td (_bgc ,0);
};_afg =_cfag ;_dbf .Add_Tj (*_fc .MakeString (_dbed ));if _efaf < len (_cab )-1{_dbf .Add_Td (0,-_ffb *_dgb );};};_dbf .Add_ET ();_dbf .Add_Q ();_dbf .Add_EMC ();_gfg :=_bf .NewXObjectForm ();_gfg .Resources =_aa ;_gfg .BBox =_fc .MakeArrayFromFloats ([]float64 {0,0,_edd ,_efa });
_gfg .SetContentStream (_dbf .Bytes (),_bcgc ());_bcbg :=_fc .MakeDict ();_bcbg .Set ("\u004e",_gfg .ToPdfObject ());return _bcbg ,nil ;};

// SetStyle applies appearance `style` to `fa`.
func (_da *FieldAppearance )SetStyle (style AppearanceStyle ){_da ._ae =&style };func (_cdac *AppearanceStyle )applyRotation (_dagc *_fc .PdfObjectDictionary ,_bee ,_bfbf float64 ,_ecdg *_b .ContentCreator )(float64 ,float64 ){if !_cdac .AllowMK {return _bee ,_bfbf ;
};if _dagc ==nil {return _bee ,_bfbf ;};_acf ,_ :=_fc .GetNumberAsFloat (_dagc .Get ("\u0052"));if _acf ==0{return _bee ,_bfbf ;};_adgd :=-_acf ;_eac :=_df .Path {Points :[]_df .Point {_df .NewPoint (0,0).Rotate (_adgd ),_df .NewPoint (_bee ,0).Rotate (_adgd ),_df .NewPoint (0,_bfbf ).Rotate (_adgd ),_df .NewPoint (_bee ,_bfbf ).Rotate (_adgd )}}.GetBoundingBox ();
_ecdg .RotateDeg (_acf );_ecdg .Translate (_eac .X ,_eac .Y );return _eac .Width ,_eac .Height ;};

// GenerateAppearanceDict generates an appearance dictionary for widget annotation `wa` for the `field` in `form`.
// Implements interface model.FieldAppearanceGenerator.
func (_ec FieldAppearance )GenerateAppearanceDict (form *_bf .PdfAcroForm ,field *_bf .PdfField ,wa *_bf .PdfAnnotationWidget )(*_fc .PdfObjectDictionary ,error ){_fa .Log .Trace ("\u0047\u0065n\u0065\u0072\u0061\u0074e\u0041\u0070p\u0065\u0061\u0072\u0061\u006e\u0063\u0065\u0044i\u0063\u0074\u0020\u0066\u006f\u0072\u0020\u0025\u0076\u0020\u0020\u0056:\u0020\u0025\u002b\u0076",field .PartialName (),field .V );
_ ,_bcb :=field .GetContext ().(*_bf .PdfFieldText );_aec ,_fg :=_fc .GetDict (wa .AP );if _fg &&_ec .OnlyIfMissing &&(!_bcb ||!_ec .RegenerateTextFields ){_fa .Log .Trace ("\u0041\u006c\u0072\u0065a\u0064\u0079\u0020\u0070\u006f\u0070\u0075\u006c\u0061\u0074e\u0064 \u002d\u0020\u0069\u0067\u006e\u006f\u0072i\u006e\u0067");
return _aec ,nil ;};if form .DR ==nil {form .DR =_bf .NewPdfPageResources ();};switch _cga :=field .GetContext ().(type ){case *_bf .PdfFieldText :_bdb :=_cga ;switch {case _bdb .Flags ().Has (_bf .FieldFlagPassword ):return nil ,nil ;case _bdb .Flags ().Has (_bf .FieldFlagFileSelect ):return nil ,nil ;
case _bdb .Flags ().Has (_bf .FieldFlagComb ):if _bdb .MaxLen !=nil {_eg ,_cgc :=_edba (wa ,_bdb ,form .DR ,_ec .Style ());if _cgc !=nil {return nil ,_cgc ;};return _eg ,nil ;};};_aba ,_dgd :=_fef (wa ,_bdb ,form .DR ,_ec .Style ());if _dgd !=nil {return nil ,_dgd ;
};return _aba ,nil ;case *_bf .PdfFieldButton :_fea :=_cga ;if _fea .IsCheckbox (){_gfa ,_aff :=_bcd (wa ,_fea ,form .DR ,_ec .Style ());if _aff !=nil {return nil ,_aff ;};return _gfa ,nil ;};_fa .Log .Debug ("\u0054\u004f\u0044\u004f\u003a\u0020\u0055\u004e\u0048\u0041\u004e\u0044\u004c\u0045\u0044 \u0062u\u0074\u0074\u006f\u006e\u0020\u0074\u0079\u0070\u0065\u003a\u0020\u0025\u002b\u0076",_fea .GetType ());
case *_bf .PdfFieldChoice :_bfd :=_cga ;switch {case _bfd .Flags ().Has (_bf .FieldFlagCombo ):_gaf ,_dbb :=_gcab (form ,wa ,_bfd ,_ec .Style ());if _dbb !=nil {return nil ,_dbb ;};return _gaf ,nil ;default:_fa .Log .Debug ("\u0054\u004f\u0044\u004f\u003a\u0020\u0055N\u0048\u0041\u004eD\u004c\u0045\u0044\u0020c\u0068\u006f\u0069\u0063\u0065\u0020\u0066\u0069\u0065\u006c\u0064\u0020\u0077\u0069\u0074\u0068\u0020\u0066\u006c\u0061\u0067\u0073\u003a\u0020\u0025\u0073",_bfd .Flags ().String ());
};default:_fa .Log .Debug ("\u0054\u004f\u0044\u004f\u003a\u0020\u0055\u004e\u0048\u0041N\u0044\u004c\u0045\u0044\u0020\u0066\u0069e\u006c\u0064\u0020\u0074\u0079\u0070\u0065\u003a\u0020\u0025\u0054",_cga );};return nil ,nil ;};func (_efd *AppearanceStyle )processDA (_gccg *_bf .PdfField ,_aecd *_b .ContentStreamOperations ,_dbdg ,_bafg *_bf .PdfPageResources ,_dcff *_b .ContentCreator )(*AppearanceFont ,bool ,error ){var _abad *AppearanceFont ;
var _dfa bool ;if _efd .Fonts !=nil {if _efd .Fonts .Fallback !=nil {_abad =_efd .Fonts .Fallback ;};if _aabb :=_efd .Fonts .FieldFallbacks ;_aabb !=nil {if _febge ,_eeb :=_aabb [_gccg .PartialName ()];_eeb {_abad =_febge ;}else if _gec ,_fbda :=_gccg .FullName ();
_fbda ==nil {if _adc ,_adfa :=_aabb [_gec ];_adfa {_abad =_adc ;};};};_dfa =_efd .Fonts .ForceReplace ;};var _cae string ;var _eced float64 ;var _bgcc bool ;if _aecd !=nil {for _ ,_fbdc :=range *_aecd {if _fbdc .Operand =="\u0054\u0066"&&len (_fbdc .Params )==2{if _bfg ,_dfag :=_fc .GetNameVal (_fbdc .Params [0]);
_dfag {_cae =_bfg ;};if _fgf ,_cagb :=_fc .GetNumberAsFloat (_fbdc .Params [1]);_cagb ==nil {_eced =_fgf ;};_bgcc =true ;continue ;};_dcff .AddOperand (*_fbdc );};};var _fae *AppearanceFont ;var _cgbcb _fc .PdfObject ;if _dfa &&_abad !=nil {_fae =_abad ;
}else {if _dbdg !=nil &&_cae !=""{if _bdbe ,_ceeg :=_dbdg .GetFontByName (*_fc .MakeName (_cae ));_ceeg {if _ddc ,_bga :=_bf .NewPdfFontFromPdfObject (_bdbe );_bga ==nil {_cgbcb =_bdbe ;_fae =&AppearanceFont {Name :_cae ,Font :_ddc ,Size :_eced };}else {_fa .Log .Debug ("\u0045\u0052\u0052\u004f\u0052:\u0020\u0063\u006f\u0075\u006c\u0064\u0020\u006e\u006f\u0074\u0020\u006c\u006fa\u0064\u0020\u0061\u0070\u0070\u0065\u0061\u0072\u0061\u006e\u0063\u0065\u0020\u0066\u006f\u006e\u0074\u003a\u0020\u0025\u0076",_bga );
};};};if _fae ==nil &&_abad !=nil {_fae =_abad ;};if _fae ==nil {_bgg ,_bedb :=_bf .NewStandard14Font ("\u0048e\u006c\u0076\u0065\u0074\u0069\u0063a");if _bedb !=nil {return nil ,false ,_bedb ;};_fae =&AppearanceFont {Name :"\u0048\u0065\u006c\u0076",Font :_bgg ,Size :_eced };
};};if _fae .Size <=0&&_efd .Fonts !=nil &&_efd .Fonts .FallbackSize > 0{_fae .Size =_efd .Fonts .FallbackSize ;};_ceac :=*_fc .MakeName (_fae .Name );if _cgbcb ==nil {_cgbcb =_fae .Font .ToPdfObject ();};if _dbdg !=nil &&!_dbdg .HasFontByName (_ceac ){_dbdg .SetFontByName (_ceac ,_cgbcb );
};if _bafg !=nil &&!_bafg .HasFontByName (_ceac ){_bafg .SetFontByName (_ceac ,_cgbcb );};return _fae ,_bgcc ,nil ;};func _gffd (_ecb []*SignatureLine ,_cgd *SignatureFieldOpts )(*_fc .PdfObjectDictionary ,error ){if _cgd ==nil {_cgd =NewSignatureFieldOpts ();
};var _cgbcg error ;var _edbc *_fc .PdfObjectName ;_faff :=_cgd .Font ;if _faff !=nil {_feba ,_ :=_faff .GetFontDescriptor ();if _feba !=nil {if _fffc ,_abd :=_feba .FontName .(*_fc .PdfObjectName );_abd {_edbc =_fffc ;};};if _edbc ==nil {_edbc =_fc .MakeName ("\u0046\u006f\u006et\u0031");
};}else {if _faff ,_cgbcg =_bf .NewStandard14Font ("\u0048e\u006c\u0076\u0065\u0074\u0069\u0063a");_cgbcg !=nil {return nil ,_cgbcg ;};_edbc =_fc .MakeName ("\u0048\u0065\u006c\u0076");};_gddb :=_cgd .FontSize ;if _gddb <=0{_gddb =10;};if _cgd .LineHeight <=0{_cgd .LineHeight =1;
};_ddcb :=_cgd .LineHeight *_gddb ;_cfge ,_fgeg :=_faff .GetRuneMetrics (' ');if !_fgeg {return nil ,_e .New ("\u0074\u0068e \u0066\u006f\u006et\u0020\u0064\u006f\u0065s n\u006ft \u0068\u0061\u0076\u0065\u0020\u0061\u0020sp\u0061\u0063\u0065\u0020\u0067\u006c\u0079p\u0068");
};_bbcf :=_cfge .Wx ;var _ceed float64 ;var _ccf []string ;for _ ,_bad :=range _ecb {if _bad .Text ==""{continue ;};_edee :=_bad .Text ;if _bad .Desc !=""{_edee =_bad .Desc +"\u003a\u0020"+_edee ;};_ccf =append (_ccf ,_edee );var _dae float64 ;for _ ,_dad :=range _edee {_gae ,_bbdd :=_faff .GetRuneMetrics (_dad );
if !_bbdd {continue ;};_dae +=_gae .Wx ;};if _dae > _ceed {_ceed =_dae ;};};_ceed =_ceed *_gddb /1000.0;_dfad :=float64 (len (_ccf ))*_ddcb ;_ffge :=_cgd .Image !=nil ;_eagd :=_cgd .Rect ;if _eagd ==nil {_eagd =[]float64 {0,0,_ceed ,_dfad };if _ffge {_eagd [2]=_ceed *2;
_eagd [3]=_dfad *2;};_cgd .Rect =_eagd ;};_ebbc :=_eagd [2]-_eagd [0];_dca :=_eagd [3]-_eagd [1];_eaae ,_baef :=_eagd ,_eagd ;var _ada ,_debd float64 ;if _ffge &&len (_ccf )> 0{if _cgd .ImagePosition <=SignatureImageRight {_fccg :=[]float64 {_eagd [0],_eagd [1],_eagd [0]+(_ebbc /2),_eagd [3]};
_gbf :=[]float64 {_eagd [0]+(_ebbc /2),_eagd [1],_eagd [2],_eagd [3]};if _cgd .ImagePosition ==SignatureImageLeft {_eaae ,_baef =_fccg ,_gbf ;}else {_eaae ,_baef =_gbf ,_fccg ;};}else {_gfaf :=[]float64 {_eagd [0],_eagd [1],_eagd [2],_eagd [1]+(_dca /2)};
_efg :=[]float64 {_eagd [0],_eagd [1]+(_dca /2),_eagd [2],_eagd [3]};if _cgd .ImagePosition ==SignatureImageTop {_eaae ,_baef =_efg ,_gfaf ;}else {_eaae ,_baef =_gfaf ,_efg ;};};};_ada =_baef [2]-_baef [0];_debd =_baef [3]-_baef [1];var _ccag float64 ;
if _cgd .AutoSize {if _ceed > _ada ||_dfad > _debd {_dace :=_cf .Min (_ada /_ceed ,_debd /_dfad );_gddb *=_dace ;};_ddcb =_cgd .LineHeight *_gddb ;_ccag +=(_debd -float64 (len (_ccf ))*_ddcb )/2;};_bbb :=_b .NewContentCreator ();_abb :=_bf .NewPdfPageResources ();
_abb .SetFontByName (*_edbc ,_faff .ToPdfObject ());if _cgd .BorderSize <=0{_cgd .BorderSize =0;_cgd .BorderColor =_bf .NewPdfColorDeviceGray (1);};if _cgd .BorderColor ==nil {_cgd .BorderColor =_bf .NewPdfColorDeviceGray (1);};if _cgd .FillColor ==nil {_cgd .FillColor =_bf .NewPdfColorDeviceGray (1);
};_bbb .Add_q ().SetNonStrokingColor (_cgd .FillColor ).SetStrokingColor (_cgd .BorderColor ).Add_w (_cgd .BorderSize ).Add_re (_eagd [0],_eagd [1],_ebbc ,_dca ).Add_B ().Add_Q ();if _cgd .WatermarkImage !=nil {_caba :=[]float64 {_eagd [0],_eagd [1],_eagd [2],_eagd [3]};
_ddg ,_cfgb ,_fcde :=_bcbf (_cgd .WatermarkImage ,"\u0049\u006d\u0061\u0067\u0065\u0057\u0061\u0074\u0065r\u006d\u0061\u0072\u006b",_cgd ,_caba ,_bbb );if _fcde !=nil {return nil ,_fcde ;};_abb .SetXObjectImageByName (*_ddg ,_cfgb );};_bbb .Add_q ();_bbb .Translate (_baef [0],_baef [3]-_ddcb -_ccag );
_bbb .Add_BT ();_ddf :=_faff .Encoder ();for _ ,_abba :=range _ccf {var _dfadg []byte ;for _ ,_deeb :=range _abba {if _fd .IsSpace (_deeb ){if len (_dfadg )> 0{_bbb .SetNonStrokingColor (_cgd .TextColor ).Add_Tf (*_edbc ,_gddb ).Add_TL (_ddcb ).Add_TJ ([]_fc .PdfObject {_fc .MakeStringFromBytes (_dfadg )}...);
_dfadg =nil ;};_bbb .Add_Tf (*_edbc ,_gddb ).Add_TL (_ddcb ).Add_TJ ([]_fc .PdfObject {_fc .MakeFloat (-_bbcf )}...);}else {_dfadg =append (_dfadg ,_ddf .Encode (string (_deeb ))...);};};if len (_dfadg )> 0{_bbb .SetNonStrokingColor (_cgd .TextColor ).Add_Tf (*_edbc ,_gddb ).Add_TL (_ddcb ).Add_TJ ([]_fc .PdfObject {_fc .MakeStringFromBytes (_dfadg )}...);
};_bbb .Add_Td (0,-_ddcb );};_bbb .Add_ET ();_bbb .Add_Q ();if _ffge {_aaac ,_gaa ,_abab :=_bcbf (_cgd .Image ,"\u0049\u006d\u0061\u0067\u0065\u0053\u0069\u0067\u006ea\u0074\u0075\u0072\u0065",_cgd ,_eaae ,_bbb );if _abab !=nil {return nil ,_abab ;};_abb .SetXObjectImageByName (*_aaac ,_gaa );
};_ecc :=_bf .NewXObjectForm ();_ecc .Resources =_abb ;_ecc .BBox =_fc .MakeArrayFromFloats (_eagd );_ecc .SetContentStream (_bbb .Bytes (),_bcgc ());_bcgf :=_fc .MakeDict ();_bcgf .Set ("\u004e",_ecc .ToPdfObject ());return _bcgf ,nil ;};

// NewSignatureField returns a new signature field with a visible appearance
// containing the specified signature lines and styled according to the
// specified options.
func NewSignatureField (signature *_bf .PdfSignature ,lines []*SignatureLine ,opts *SignatureFieldOpts )(*_bf .PdfFieldSignature ,error ){if signature ==nil {return nil ,_e .New ("\u0073\u0069\u0067na\u0074\u0075\u0072\u0065\u0020\u0063\u0061\u006e\u006e\u006f\u0074\u0020\u0062\u0065\u0020\u006e\u0069\u006c");
};_gcd ,_abde :=_gffd (lines ,opts );if _abde !=nil {return nil ,_abde ;};_daeg :=_bf .NewPdfFieldSignature (signature );_daeg .Rect =_fc .MakeArrayFromFloats (opts .Rect );_daeg .AP =_gcd ;return _daeg ,nil ;};

// FieldAppearance implements interface model.FieldAppearanceGenerator and generates appearance streams
// for fields taking into account what value is in the field. A common use case is for generating the
// appearance stream prior to flattening fields.
//
// If `OnlyIfMissing` is true, the field appearance is generated only for fields that do not have an
// appearance stream specified.
// If `RegenerateTextFields` is true, all text fields are regenerated (even if OnlyIfMissing is true).
type FieldAppearance struct{OnlyIfMissing bool ;RegenerateTextFields bool ;_ae *AppearanceStyle ;};func _addg (_aede ,_badf float64 ,_dbba *_bf .Image ,_fdcd AppearanceStyle )(*_bf .XObjectForm ,error ){_baeg ,_bdaf :=_bf .NewXObjectImageFromImage (_dbba ,nil ,_fc .NewFlateEncoder ());
if _bdaf !=nil {return nil ,_bdaf ;};_baeg .Decode =_fc .MakeArrayFromFloats ([]float64 {0.0,1.0,0.0,1.0,0.0,1.0});_cdga :=_bf .NewPdfPageResources ();_cdga .ProcSet =_fc .MakeArray (_fc .MakeName ("\u0050\u0044\u0046"),_fc .MakeName ("\u0049\u006d\u0061\u0067\u0065\u0043"));
_cdga .SetXObjectImageByName (_fc .PdfObjectName ("\u0049\u006d\u0030"),_baeg );_gbff :=_b .NewContentCreator ();_gbff .Add_q ();_gbff .Add_cm (float64 (_dbba .Width ),0,0,float64 (_dbba .Height ),0,0);_gbff .Add_Do ("\u0049\u006d\u0030");_gbff .Add_Q ();
_dbfb :=_bf .NewXObjectForm ();_dbfb .FormType =_fc .MakeInteger (1);_dbfb .BBox =_fc .MakeArrayFromFloats ([]float64 {0,0,float64 (_dbba .Width ),float64 (_dbba .Height )});_dbfb .Resources =_cdga ;_dbfb .SetContentStream (_gbff .Bytes (),_bcgc ());return _dbfb ,nil ;
};

// CreateCircleAnnotation creates a circle/ellipse annotation object with appearance stream that can be added to
// page PDF annotations.
func CreateCircleAnnotation (circDef CircleAnnotationDef )(*_bf .PdfAnnotation ,error ){_dg :=_bf .NewPdfAnnotationCircle ();if circDef .BorderEnabled {_bc ,_fb ,_bg :=circDef .BorderColor .R (),circDef .BorderColor .G (),circDef .BorderColor .B ();_dg .C =_fc .MakeArrayFromFloats ([]float64 {_bc ,_fb ,_bg });
_bd :=_bf .NewBorderStyle ();_bd .SetBorderWidth (circDef .BorderWidth );_dg .BS =_bd .ToPdfObject ();};if circDef .FillEnabled {_gg ,_de ,_cb :=circDef .FillColor .R (),circDef .FillColor .G (),circDef .FillColor .B ();_dg .IC =_fc .MakeArrayFromFloats ([]float64 {_gg ,_de ,_cb });
}else {_dg .IC =_fc .MakeArrayFromIntegers ([]int {});};if circDef .Opacity < 1.0{_dg .CA =_fc .MakeFloat (circDef .Opacity );};_ga ,_ff ,_dd :=_ef (circDef );if _dd !=nil {return nil ,_dd ;};_dg .AP =_ga ;_dg .Rect =_fc .MakeArrayFromFloats ([]float64 {_ff .Llx ,_ff .Lly ,_ff .Urx ,_ff .Ury });
return _dg .PdfAnnotation ,nil ;};

// NewSignatureFieldOpts returns a new initialized instance of options
// used to generate a signature appearance.
func NewSignatureFieldOpts ()*SignatureFieldOpts {return &SignatureFieldOpts {Font :_bf .DefaultFont (),FontSize :10,LineHeight :1,AutoSize :true ,TextColor :_bf .NewPdfColorDeviceGray (0),BorderColor :_bf .NewPdfColorDeviceGray (0),FillColor :_bf .NewPdfColorDeviceGray (1),Encoder :_fc .NewFlateEncoder (),ImagePosition :SignatureImageLeft };
};

// WrapContentStream ensures that the entire content stream for a `page` is wrapped within q ... Q operands.
// Ensures that following operands that are added are not affected by additional operands that are added.
// Implements interface model.ContentStreamWrapper.
func (_egb FieldAppearance )WrapContentStream (page *_bf .PdfPage )error {_cdea ,_bfdd :=page .GetAllContentStreams ();if _bfdd !=nil {return _bfdd ;};_abfa :=_b .NewContentStreamParser (_cdea );_aegf ,_bfdd :=_abfa .Parse ();if _bfdd !=nil {return _bfdd ;
};_aegf .WrapIfNeeded ();_ffg :=[]string {_aegf .String ()};return page .SetContentStreams (_ffg ,_bcgc ());};

// ComboboxFieldOptions defines optional parameters for a combobox form field.
type ComboboxFieldOptions struct{

// Choices is the list of string values that can be selected.
Choices []string ;};

// TextFieldOptions defines optional parameter for a text field in a form.
type TextFieldOptions struct{MaxLen int ;Value string ;};func _edba (_ffbb *_bf .PdfAnnotationWidget ,_ggbg *_bf .PdfFieldText ,_aad *_bf .PdfPageResources ,_bffg AppearanceStyle )(*_fc .PdfObjectDictionary ,error ){_fgc :=_bf .NewPdfPageResources ();_fee ,_bfbb :=_fc .GetArray (_ffbb .Rect );
if !_bfbb {return nil ,_e .New ("\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0052\u0065\u0063\u0074");};_egf ,_cad :=_bf .NewPdfRectangle (*_fee );if _cad !=nil {return nil ,_cad ;};_fag ,_aaa :=_egf .Width (),_egf .Height ();_cee ,_abe :=_fag ,_aaa ;
_bagc ,_fdde :=_fc .GetDict (_ffbb .MK );if _fdde {_faf ,_ :=_fc .GetDict (_ffbb .BS );_feeb :=_bffg .applyAppearanceCharacteristics (_bagc ,_faf ,nil );if _feeb !=nil {return nil ,_feeb ;};};_ebc ,_fdde :=_fc .GetIntVal (_ggbg .MaxLen );if !_fdde {return nil ,_e .New ("\u006d\u0061\u0078\u006c\u0065\u006e\u0020\u006e\u006ft\u0020\u0073\u0065\u0074");
};if _ebc <=0{return nil ,_e .New ("\u006d\u0061\u0078\u004c\u0065\u006e\u0020\u0069\u006ev\u0061\u006c\u0069\u0064");};_feed :=_fag /float64 (_ebc );_cbae ,_cad :=_b .NewContentStreamParser (_bdcf (_ggbg .PdfField )).Parse ();if _cad !=nil {return nil ,_cad ;
};_eae :=_b .NewContentCreator ();if _bffg .BorderSize > 0{_aegb (_eae ,_bffg ,_fag ,_aaa );};if _bffg .DrawAlignmentReticle {_fddc :=_bffg ;_fddc .BorderSize =0.2;_gfab (_eae ,_fddc ,_fag ,_aaa );};_eae .Add_BMC ("\u0054\u0078");_eae .Add_q ();_ ,_aaa =_bffg .applyRotation (_bagc ,_fag ,_aaa ,_eae );
_eae .Add_BT ();_fabf ,_bea ,_cad :=_bffg .processDA (_ggbg .PdfField ,_cbae ,_aad ,_fgc ,_eae );if _cad !=nil {return nil ,_cad ;};_fdac :=_fabf .Font ;_ccad :=_fc .MakeName (_fabf .Name );_gbb :=_fabf .Size ;_ebf :=_gbb ==0;if _ebf &&_bea {_gbb =_aaa *_bffg .AutoFontSizeFraction ;
};_bfc :=_fdac .Encoder ();if _bfc ==nil {_fa .Log .Debug ("\u0057\u0041RN\u003a\u0020\u0066\u006f\u006e\u0074\u0020\u0065\u006e\u0063\u006f\u0064\u0065\u0072\u0020\u0069\u0073\u0020\u006e\u0069l\u002e\u0020\u0041\u0073s\u0075\u006d\u0069\u006eg \u0069\u0064e\u006et\u0069\u0074\u0079\u0020\u0065\u006ec\u006f\u0064\u0065r\u002e\u0020O\u0075\u0074\u0070\u0075\u0074\u0020\u006d\u0061\u0079\u0020\u0062\u0065\u0020\u0069n\u0063\u006f\u0072\u0072\u0065\u0063\u0074\u002e");
_bfc =_g .NewIdentityTextEncoder ("\u0049\u0064\u0065\u006e\u0074\u0069\u0074\u0079\u002d\u0048");};var _gfgf string ;if _cda ,_aecb :=_fc .GetString (_ggbg .V );_aecb {_gfgf =_cda .Decoded ();};_eae .Add_Tf (*_ccad ,_gbb );var _dgc float64 ;for _ ,_bdc :=range _gfgf {_ccdf ,_addb :=_fdac .GetRuneMetrics (_bdc );
if !_addb {_fa .Log .Debug ("\u0045\u0052\u0052\u004f\u0052\u003a \u0052\u0075\u006e\u0065\u0020\u006e\u006f\u0074\u0020\u0066\u006f\u0075\u006e\u0064\u0020\u0069\u006e\u0020\u0066\u006fn\u0074\u003a\u0020\u0025\u0076\u0020\u002d\u0020\u0073\u006b\u0069\u0070\u0070\u0069n\u0067 \u006f\u0076\u0065\u0072",_bdc );
continue ;};_feeg :=_ccdf .Wy ;if int (_feeg )<=0{_feeg =_ccdf .Wx ;};if _feeg > _dgc {_dgc =_feeg ;};};if int (_dgc )==0{_fa .Log .Debug ("\u0045\u0052\u0052\u004f\u0052\u003a\u0020\u0055\u006e\u0061\u0062\u006c\u0065\u0020\u0074o\u0020\u0064\u0065\u0074\u0065\u0072\u006d\u0069\u006e\u0065\u0020\u006d\u0061x\u0020\u0067\u006c\u0079\u0070\u0068\u0020\u0073\u0069\u007a\u0065\u0020- \u0075\u0073\u0069\u006e\u0067\u0020\u0031\u0030\u0030\u0030");
_dgc =1000;};_dc ,_cad :=_fdac .GetFontDescriptor ();if _cad !=nil {_fa .Log .Debug ("\u0045\u0072ro\u0072\u003a\u0020U\u006e\u0061\u0062\u006ce t\u006f g\u0065\u0074\u0020\u0066\u006f\u006e\u0074 d\u0065\u0073\u0063\u0072\u0069\u0070\u0074o\u0072");};
var _abf float64 ;if _dc !=nil {_abf ,_cad =_dc .GetCapHeight ();if _cad !=nil {_fa .Log .Debug ("\u0045\u0052\u0052\u004f\u0052\u003a\u0020\u0055\u006e\u0061\u0062\u006c\u0065 \u0074\u006f\u0020\u0067\u0065\u0074 \u0066\u006f\u006e\u0074\u0020\u0043\u0061\u0070\u0048\u0065\u0069\u0067\u0068t\u003a\u0020\u0025\u0076",_cad );
};};if int (_abf )<=0{_fa .Log .Debug ("W\u0041\u0052\u004e\u003a\u0020\u0043\u0061\u0070\u0048e\u0069\u0067\u0068\u0074\u0020\u006e\u006ft \u0061\u0076\u0061\u0069l\u0061\u0062\u006c\u0065\u0020\u002d\u0020\u0073\u0065tt\u0069\u006eg\u0020\u0074\u006f\u0020\u0031\u0030\u0030\u0030");
_abf =1000.0;};_cfaf :=_abf /1000.0*_gbb ;_fcd :=0.0;_dgdf :=1.0*_gbb *(_dgc /1000.0);{_aea :=_dgdf ;if _ebf &&_fcd +_aea > _aaa {_gbb =0.95*(_aaa -_fcd );_cfaf =_abf /1000.0*_gbb ;};if _aaa > _cfaf {_fcd =(_aaa -_cfaf )/2.0;};};_eae .Add_Td (0,_fcd );
if _dedg ,_dag :=_fc .GetIntVal (_ggbg .Q );_dag {switch _dedg {case 2:if len (_gfgf )< _ebc {_fgab :=float64 (_ebc -len (_gfgf ))*_feed ;_eae .Add_Td (_fgab ,0);};};};for _ge ,_gdc :=range _gfgf {_cfg :=_ggb ;if _bffg .MarginLeft !=nil {_cfg =*_bffg .MarginLeft ;
};_cbc :=string (_gdc );if _bfc !=nil {_cgb ,_dcd :=_fdac .GetRuneMetrics (_gdc );if !_dcd {_fa .Log .Debug ("\u0045\u0052\u0052\u004f\u0052\u003a \u0052\u0075\u006e\u0065\u0020\u006e\u006f\u0074\u0020\u0066\u006f\u0075\u006e\u0064\u0020\u0069\u006e\u0020\u0066\u006fn\u0074\u003a\u0020\u0025\u0076\u0020\u002d\u0020\u0073\u006b\u0069\u0070\u0070\u0069n\u0067 \u006f\u0076\u0065\u0072",_gdc );
continue ;};_cbc =string (_bfc .Encode (_cbc ));_dba :=_gbb *_cgb .Wx /1000.0;_ee :=(_feed -_dba )/2;_cfg =_ee ;};_eae .Add_Td (_cfg ,0);_eae .Add_Tj (*_fc .MakeString (_cbc ));if _ge !=len (_gfgf )-1{_eae .Add_Td (_feed -_cfg ,0);};};_eae .Add_ET ();_eae .Add_Q ();
_eae .Add_EMC ();_dgdc :=_bf .NewXObjectForm ();_dgdc .Resources =_fgc ;_dgdc .BBox =_fc .MakeArrayFromFloats ([]float64 {0,0,_cee ,_abe });_dgdc .SetContentStream (_eae .Bytes (),_bcgc ());_efff :=_fc .MakeDict ();_efff .Set ("\u004e",_dgdc .ToPdfObject ());
return _efff ,nil ;};func _aegb (_fdc *_b .ContentCreator ,_cdag AppearanceStyle ,_fcf ,_ceec float64 ){_fdc .Add_q ().Add_re (0,0,_fcf ,_ceec ).Add_w (_cdag .BorderSize ).SetStrokingColor (_cdag .BorderColor ).SetNonStrokingColor (_cdag .FillColor ).Add_B ().Add_Q ();
};

// RectangleAnnotationDef is a rectangle defined with a specified Width and Height and a lower left corner at (X,Y).
// The rectangle can optionally have a border and a filling color.
// The Width/Height includes the border (if any specified).
type RectangleAnnotationDef struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;FillEnabled bool ;FillColor *_bf .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_bf .PdfColorDeviceRGB ;Opacity float64 ;};func _bcgc ()_fc .StreamEncoder {return _fc .NewFlateEncoder ()};
const (SignatureImageLeft SignatureImagePosition =iota ;SignatureImageRight ;SignatureImageTop ;SignatureImageBottom ;);

// AppearanceFontStyle defines font style characteristics for form fields,
// used in the filling/flattening process.
type AppearanceFontStyle struct{

// Fallback represents a global font fallback, used for fields which do
// not specify a font in their default appearance (DA). The fallback is
// also used if there is a font specified in the DA, but it is not
// found in the AcroForm resources (DR).
Fallback *AppearanceFont ;

// FallbackSize represents a global font size fallback used for fields
// which do not specify a font size in their default appearance (DA).
// The fallback size is applied only if its value is larger than zero.
FallbackSize float64 ;

// FieldFallbacks defines font fallbacks for specific fields. The map keys
// represent the names of the fields (which can be specified by their
// partial or full names). Specific field fallback fonts take precedence
// over the global font fallback.
FieldFallbacks map[string ]*AppearanceFont ;

// ForceReplace forces the replacement of fonts in the filling/flattening
// process, even if the default appearance (DA) specifies a valid font.
// If no fallback font is provided, setting this field has no effect.
ForceReplace bool ;};const (_ac quadding =0;_fdd quadding =1;_acg quadding =2;_ggb float64 =2.0;);

// Style returns the appearance style of `fa`. If not specified, returns default style.
func (_aaga ImageFieldAppearance )Style ()AppearanceStyle {if _aaga ._bab !=nil {return *_aaga ._bab ;};return AppearanceStyle {BorderSize :0.0,BorderColor :_bf .NewPdfColorDeviceGray (0),FillColor :_bf .NewPdfColorDeviceGray (1),DrawAlignmentReticle :false };
};func (_fgga *AppearanceStyle )applyAppearanceCharacteristics (_febde *_fc .PdfObjectDictionary ,_gddg *_fc .PdfObjectDictionary ,_egd *_bf .PdfFont )error {if !_fgga .AllowMK {return nil ;};if CA ,_cgbb :=_fc .GetString (_febde .Get ("\u0043\u0041"));
_cgbb &&_egd !=nil {_dga :=CA .Bytes ();if len (_dga )!=0{_ddda :=[]rune (_egd .Encoder ().Decode (_dga ));if len (_ddda )==1{_fgga .CheckmarkRune =_ddda [0];};};};if BC ,_ggf :=_fc .GetArray (_febde .Get ("\u0042\u0043"));_ggf {_cbed ,_agb :=BC .ToFloat64Array ();
if _agb !=nil {return _agb ;};switch len (_cbed ){case 1:_fgga .BorderColor =_bf .NewPdfColorDeviceGray (_cbed [0]);case 3:_fgga .BorderColor =_bf .NewPdfColorDeviceRGB (_cbed [0],_cbed [1],_cbed [2]);case 4:_fgga .BorderColor =_bf .NewPdfColorDeviceCMYK (_cbed [0],_cbed [1],_cbed [2],_cbed [3]);
default:_fa .Log .Debug ("\u0045\u0052\u0052\u004f\u0052:\u0020\u0042\u0043\u0020\u002d\u0020\u0049\u006e\u0076\u0061\u006c\u0069\u0064 \u006e\u0075\u006d\u0062\u0065\u0072\u0020\u006f\u0066\u0020\u0063\u006f\u006c\u006f\u0072\u0020\u0063\u006f\u006d\u0070\u006f\u006e\u0065\u006e\u0074\u0073\u0020\u0028\u0025\u0064)",len (_cbed ));
};if _gddg !=nil {if _ceee ,_afc :=_fc .GetNumberAsFloat (_gddg .Get ("\u0057"));_afc ==nil {_fgga .BorderSize =_ceee ;};};};if BG ,_cbbf :=_fc .GetArray (_febde .Get ("\u0042\u0047"));_cbbf {_bagdb ,_gbd :=BG .ToFloat64Array ();if _gbd !=nil {return _gbd ;
};switch len (_bagdb ){case 1:_fgga .FillColor =_bf .NewPdfColorDeviceGray (_bagdb [0]);case 3:_fgga .FillColor =_bf .NewPdfColorDeviceRGB (_bagdb [0],_bagdb [1],_bagdb [2]);case 4:_fgga .FillColor =_bf .NewPdfColorDeviceCMYK (_bagdb [0],_bagdb [1],_bagdb [2],_bagdb [3]);
default:_fa .Log .Debug ("\u0045\u0052\u0052\u004f\u0052:\u0020\u0042\u0047\u0020\u002d\u0020\u0049\u006e\u0076\u0061\u006c\u0069\u0064 \u006e\u0075\u006d\u0062\u0065\u0072\u0020\u006f\u0066\u0020\u0063\u006f\u006c\u006f\u0072\u0020\u0063\u006f\u006d\u0070\u006f\u006e\u0065\u006e\u0074\u0073\u0020\u0028\u0025\u0064)",len (_bagdb ));
};};return nil ;};

// AppearanceStyle defines style parameters for appearance stream generation.
type AppearanceStyle struct{

// How much of Rect height to fill when autosizing text.
AutoFontSizeFraction float64 ;

// CheckmarkRune is a rune used for check mark in checkboxes (for ZapfDingbats font).
CheckmarkRune rune ;BorderSize float64 ;BorderColor _bf .PdfColor ;FillColor _bf .PdfColor ;

// Multiplier for lineheight for multi line text.
MultilineLineHeight float64 ;MultilineVAlignMiddle bool ;

// Visual guide checking alignment of field contents (debugging).
DrawAlignmentReticle bool ;

// Allow field MK appearance characteristics to override style settings.
AllowMK bool ;

// Fonts holds appearance styles for fonts.
Fonts *AppearanceFontStyle ;

// MarginLeft represents the amount of space to leave on the left side of
// the form field bounding box when generating appearances (default: 2.0).
MarginLeft *float64 ;};

// CreateRectangleAnnotation creates a rectangle annotation object that can be added to page PDF annotations.
func CreateRectangleAnnotation (rectDef RectangleAnnotationDef )(*_bf .PdfAnnotation ,error ){_gaed :=_bf .NewPdfAnnotationSquare ();if rectDef .BorderEnabled {_bge ,_dgcb ,_bgf :=rectDef .BorderColor .R (),rectDef .BorderColor .G (),rectDef .BorderColor .B ();
_gaed .C =_fc .MakeArrayFromFloats ([]float64 {_bge ,_dgcb ,_bgf });_ccdg :=_bf .NewBorderStyle ();_ccdg .SetBorderWidth (rectDef .BorderWidth );_gaed .BS =_ccdg .ToPdfObject ();};if rectDef .FillEnabled {_aca ,_afbb ,_ebed :=rectDef .FillColor .R (),rectDef .FillColor .G (),rectDef .FillColor .B ();
_gaed .IC =_fc .MakeArrayFromFloats ([]float64 {_aca ,_afbb ,_ebed });}else {_gaed .IC =_fc .MakeArrayFromIntegers ([]int {});};if rectDef .Opacity < 1.0{_gaed .CA =_fc .MakeFloat (rectDef .Opacity );};_eecb ,_gac ,_aedc :=_bcbd (rectDef );if _aedc !=nil {return nil ,_aedc ;
};_gaed .AP =_eecb ;_gaed .Rect =_fc .MakeArrayFromFloats ([]float64 {_gac .Llx ,_gac .Lly ,_gac .Urx ,_gac .Ury });return _gaed .PdfAnnotation ,nil ;};

// NewSignatureLine returns a new signature line displayed as a part of the
// signature field appearance.
func NewSignatureLine (desc ,text string )*SignatureLine {return &SignatureLine {Desc :desc ,Text :text };};

// CircleAnnotationDef defines a circle annotation or ellipse at position (X, Y) and Width and Height.
// The annotation has various style parameters including Fill and Border options and Opacity.
type CircleAnnotationDef struct{X float64 ;Y float64 ;Width float64 ;Height float64 ;FillEnabled bool ;FillColor *_bf .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_bf .PdfColorDeviceRGB ;Opacity float64 ;};func _gcab (_febg *_bf .PdfAcroForm ,_edga *_bf .PdfAnnotationWidget ,_gdd *_bf .PdfFieldChoice ,_beag AppearanceStyle )(*_fc .PdfObjectDictionary ,error ){_ggcf ,_fdf :=_fc .GetArray (_edga .Rect );
if !_fdf {return nil ,_e .New ("\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0052\u0065\u0063\u0074");};_cegc ,_cec :=_bf .NewPdfRectangle (*_ggcf );if _cec !=nil {return nil ,_cec ;};_ddb ,_abfe :=_cegc .Width (),_cegc .Height ();_fa .Log .Debug ("\u0043\u0068\u006f\u0069\u0063\u0065\u002c\u0020\u0077\u0061\u0020\u0042S\u003a\u0020\u0025\u0076",_edga .BS );
_faa ,_cec :=_b .NewContentStreamParser (_bdcf (_gdd .PdfField )).Parse ();if _cec !=nil {return nil ,_cec ;};_adf ,_fba :=_fc .GetDict (_edga .MK );if _fba {_bac ,_ :=_fc .GetDict (_edga .BS );_dgda :=_beag .applyAppearanceCharacteristics (_adf ,_bac ,nil );
if _dgda !=nil {return nil ,_dgda ;};};_gad :=_fc .MakeDict ();for _ ,_gcc :=range _gdd .Opt .Elements (){if _eagb ,_fdbg :=_fc .GetArray (_gcc );_fdbg &&_eagb .Len ()==2{_gcc =_eagb .Get (1);};var _eec string ;if _aeg ,_dfc :=_fc .GetString (_gcc );_dfc {_eec =_aeg .Decoded ();
}else if _febd ,_bde :=_fc .GetName (_gcc );_bde {_eec =_febd .String ();}else {_fa .Log .Debug ("\u0045\u0052\u0052\u004f\u0052\u003a \u004f\u0070\u0074\u0020\u006e\u006f\u0074\u0020\u0061\u0020\u006e\u0061\u006de\u002f\u0073\u0074\u0072\u0069\u006e\u0067 \u002d\u0020\u0025\u0054",_gcc );
return nil ,_e .New ("\u006e\u006f\u0074\u0020\u0061\u0020\u006e\u0061\u006d\u0065\u002f\u0073t\u0072\u0069\u006e\u0067");};if len (_eec )> 0{_cde ,_cgbc :=_dcf (_gdd .PdfField ,_ddb ,_abfe ,_eec ,_beag ,_faa ,_febg .DR ,_adf );if _cgbc !=nil {return nil ,_cgbc ;
};_gad .Set (*_fc .MakeName (_eec ),_cde .ToPdfObject ());};};_dccg :=_fc .MakeDict ();_dccg .Set ("\u004e",_gad );return _dccg ,nil ;};

// ImageFieldAppearance implements interface model.FieldAppearanceGenerator and generates appearance streams
// for attaching an image to a button field.
type ImageFieldAppearance struct{OnlyIfMissing bool ;_bab *AppearanceStyle ;};

// GenerateAppearanceDict generates an appearance dictionary for widget annotation `wa` for the `field` in `form`.
// Implements interface model.FieldAppearanceGenerator.
func (_cgfa ImageFieldAppearance )GenerateAppearanceDict (form *_bf .PdfAcroForm ,field *_bf .PdfField ,wa *_bf .PdfAnnotationWidget )(*_fc .PdfObjectDictionary ,error ){_ ,_bffe :=field .GetContext ().(*_bf .PdfFieldButton );if !_bffe {_fa .Log .Trace ("C\u006f\u0075\u006c\u0064\u0020\u006fn\u006c\u0079\u0020\u0068\u0061\u006ed\u006c\u0065\u0020\u0062\u0075\u0074\u0074o\u006e\u0020\u002d\u0020\u0069\u0067\u006e\u006f\u0072\u0069n\u0067");
return nil ,nil ;};_geb ,_eaaeg :=_fc .GetDict (wa .AP );if _eaaeg &&_cgfa .OnlyIfMissing {_fa .Log .Trace ("\u0041\u006c\u0072\u0065a\u0064\u0079\u0020\u0070\u006f\u0070\u0075\u006c\u0061\u0074e\u0064 \u002d\u0020\u0069\u0067\u006e\u006f\u0072i\u006e\u0067");
return _geb ,nil ;};if form .DR ==nil {form .DR =_bf .NewPdfPageResources ();};switch _cfbf :=field .GetContext ().(type ){case *_bf .PdfFieldButton :if _cfbf .IsPush (){_cdeg ,_bggg :=_cbeda (_cfbf ,wa ,_cgfa .Style ());if _bggg !=nil {return nil ,_bggg ;
};return _cdeg ,nil ;};};return nil ,nil ;};

// WrapContentStream ensures that the entire content stream for a `page` is wrapped within q ... Q operands.
// Ensures that following operands that are added are not affected by additional operands that are added.
// Implements interface model.ContentStreamWrapper.
func (_dedb ImageFieldAppearance )WrapContentStream (page *_bf .PdfPage )error {_edgc ,_edbe :=page .GetAllContentStreams ();if _edbe !=nil {return _edbe ;};_gcb :=_b .NewContentStreamParser (_edgc );_abec ,_edbe :=_gcb .Parse ();if _edbe !=nil {return _edbe ;
};_abec .WrapIfNeeded ();_fec :=[]string {_abec .String ()};return page .SetContentStreams (_fec ,_bcgc ());};

// SignatureLine represents a line of information in the signature field appearance.
type SignatureLine struct{Desc string ;Text string ;};

// CreateLineAnnotation creates a line annotation object that can be added to page PDF annotations.
func CreateLineAnnotation (lineDef LineAnnotationDef )(*_bf .PdfAnnotation ,error ){_fbbd :=_bf .NewPdfAnnotationLine ();_fbbd .L =_fc .MakeArrayFromFloats ([]float64 {lineDef .X1 ,lineDef .Y1 ,lineDef .X2 ,lineDef .Y2 });_adb :=_fc .MakeName ("\u004e\u006f\u006e\u0065");
if lineDef .LineEndingStyle1 ==_df .LineEndingStyleArrow {_adb =_fc .MakeName ("C\u006c\u006f\u0073\u0065\u0064\u0041\u0072\u0072\u006f\u0077");};_ggee :=_fc .MakeName ("\u004e\u006f\u006e\u0065");if lineDef .LineEndingStyle2 ==_df .LineEndingStyleArrow {_ggee =_fc .MakeName ("C\u006c\u006f\u0073\u0065\u0064\u0041\u0072\u0072\u006f\u0077");
};_fbbd .LE =_fc .MakeArray (_adb ,_ggee );if lineDef .Opacity < 1.0{_fbbd .CA =_fc .MakeFloat (lineDef .Opacity );};_gbeb ,_dfd ,_abaa :=lineDef .LineColor .R (),lineDef .LineColor .G (),lineDef .LineColor .B ();_fbbd .IC =_fc .MakeArrayFromFloats ([]float64 {_gbeb ,_dfd ,_abaa });
_fbbd .C =_fc .MakeArrayFromFloats ([]float64 {_gbeb ,_dfd ,_abaa });_dgbg :=_bf .NewBorderStyle ();_dgbg .SetBorderWidth (lineDef .LineWidth );_fbbd .BS =_dgbg .ToPdfObject ();_gbdba ,_agfb ,_cbce :=_bcbb (lineDef );if _cbce !=nil {return nil ,_cbce ;
};_fbbd .AP =_gbdba ;_fbbd .Rect =_fc .MakeArrayFromFloats ([]float64 {_agfb .Llx ,_agfb .Lly ,_agfb .Urx ,_agfb .Ury });return _fbbd .PdfAnnotation ,nil ;};

// NewTextField generates a new text field with partial name `name` at location
// specified by `rect` on given `page` and with field specific options `opt`.
func NewTextField (page *_bf .PdfPage ,name string ,rect []float64 ,opt TextFieldOptions )(*_bf .PdfFieldText ,error ){if page ==nil {return nil ,_e .New ("\u0070a\u0067e\u0020\u006e\u006f\u0074\u0020s\u0070\u0065c\u0069\u0066\u0069\u0065\u0064");};if len (name )<=0{return nil ,_e .New ("\u0072\u0065\u0071\u0075\u0069\u0072\u0065\u0064\u0020\u0061\u0074\u0074\u0072\u0069\u0062u\u0074e\u0020\u006e\u006f\u0074\u0020\u0073\u0070\u0065\u0063\u0069\u0066\u0069\u0065\u0064");
};if len (rect )!=4{return nil ,_e .New ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0072\u0061\u006e\u0067\u0065");};_acd :=_bf .NewPdfField ();_bbbc :=&_bf .PdfFieldText {};_acd .SetContext (_bbbc );_bbbc .PdfField =_acd ;_bbbc .T =_fc .MakeString (name );
if opt .MaxLen > 0{_bbbc .MaxLen =_fc .MakeInteger (int64 (opt .MaxLen ));};if len (opt .Value )> 0{_bbbc .V =_fc .MakeString (opt .Value );};_caf :=_bf .NewPdfAnnotationWidget ();_caf .Rect =_fc .MakeArrayFromFloats (rect );_caf .P =page .ToPdfObject ();
_caf .F =_fc .MakeInteger (4);_caf .Parent =_bbbc .ToPdfObject ();_bbbc .Annotations =append (_bbbc .Annotations ,_caf );return _bbbc ,nil ;};func _abgf (_agdee RectangleAnnotationDef ,_dgbb string )([]byte ,*_bf .PdfRectangle ,*_bf .PdfRectangle ,error ){_ade :=_df .Rectangle {X :0,Y :0,Width :_agdee .Width ,Height :_agdee .Height ,FillEnabled :_agdee .FillEnabled ,FillColor :_agdee .FillColor ,BorderEnabled :_agdee .BorderEnabled ,BorderWidth :2*_agdee .BorderWidth ,BorderColor :_agdee .BorderColor ,Opacity :_agdee .Opacity };
_caca ,_ffcae ,_fgfc :=_ade .Draw (_dgbb );if _fgfc !=nil {return nil ,nil ,nil ,_fgfc ;};_gebc :=&_bf .PdfRectangle {};_gebc .Llx =_agdee .X +_ffcae .Llx ;_gebc .Lly =_agdee .Y +_ffcae .Lly ;_gebc .Urx =_agdee .X +_ffcae .Urx ;_gebc .Ury =_agdee .Y +_ffcae .Ury ;
return _caca ,_ffcae ,_gebc ,nil ;};func _ccd (_bbd CircleAnnotationDef ,_dbd string )([]byte ,*_bf .PdfRectangle ,*_bf .PdfRectangle ,error ){_cg :=_df .Circle {X :_bbd .X ,Y :_bbd .Y ,Width :_bbd .Width ,Height :_bbd .Height ,FillEnabled :_bbd .FillEnabled ,FillColor :_bbd .FillColor ,BorderEnabled :_bbd .BorderEnabled ,BorderWidth :_bbd .BorderWidth ,BorderColor :_bbd .BorderColor ,Opacity :_bbd .Opacity };
_dbe ,_ca ,_ddd :=_cg .Draw (_dbd );if _ddd !=nil {return nil ,nil ,nil ,_ddd ;};_fed :=&_bf .PdfRectangle {};_fed .Llx =_bbd .X +_ca .Llx ;_fed .Lly =_bbd .Y +_ca .Lly ;_fed .Urx =_bbd .X +_ca .Urx ;_fed .Ury =_bbd .Y +_ca .Ury ;return _dbe ,_ca ,_fed ,nil ;
};

// NewImageField generates a new image field with partial name `name` at location `rect`
// on specified `page` and with field specific options `opt`.
func NewImageField (page *_bf .PdfPage ,name string ,rect []float64 ,opt ImageFieldOptions )(*_bf .PdfFieldButton ,error ){if page ==nil {return nil ,_e .New ("\u0070a\u0067e\u0020\u006e\u006f\u0074\u0020s\u0070\u0065c\u0069\u0066\u0069\u0065\u0064");};
if len (name )<=0{return nil ,_e .New ("\u0072\u0065\u0071\u0075\u0069\u0072\u0065\u0064\u0020\u0061\u0074\u0074\u0072\u0069\u0062u\u0074e\u0020\u006e\u006f\u0074\u0020\u0073\u0070\u0065\u0063\u0069\u0066\u0069\u0065\u0064");};if len (rect )!=4{return nil ,_e .New ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0072\u0061\u006e\u0067\u0065");
};_aedb :=_bf .NewPdfField ();_edbcc :=&_bf .PdfFieldButton {};_edbcc .PdfField =_aedb ;_aedb .SetContext (_edbcc );_edbcc .SetType (_bf .ButtonTypePush );_edbcc .T =_fc .MakeString (name );_abdb :=_bf .NewPdfAnnotationWidget ();_abdb .Rect =_fc .MakeArrayFromFloats (rect );
_abdb .P =page .ToPdfObject ();_abdb .F =_fc .MakeInteger (4);_abdb .Parent =_edbcc .ToPdfObject ();_egbe :=rect [2]-rect [0];_ffff :=rect [3]-rect [1];_gbde :=opt ._bba ;_bbdda :=_b .NewContentCreator ();if _gbde .BorderSize > 0{_aegb (_bbdda ,_gbde ,_egbe ,_ffff );
};if _gbde .DrawAlignmentReticle {_bfba :=_gbde ;_bfba .BorderSize =0.2;_gfab (_bbdda ,_bfba ,_egbe ,_ffff );};_daf ,_fbcf :=_addg (_egbe ,_ffff ,opt .Image ,_gbde );if _fbcf !=nil {return nil ,_fbcf ;};_ceab ,_fbb :=_fc .GetDict (_abdb .MK );if _fbb {_ceab .Set ("\u006c",_daf .ToPdfObject ());
};_fagg :=_fc .MakeDict ();_fagg .Set ("\u0046\u0052\u004d",_daf .ToPdfObject ());_ddcc :=_bf .NewPdfPageResources ();_ddcc .ProcSet =_fc .MakeArray (_fc .MakeName ("\u0050\u0044\u0046"));_ddcc .XObject =_fagg ;_fca :=_egbe -2;_abdbf :=_ffff -2;_bbdda .Add_q ();
_bbdda .Add_re (1,1,_fca ,_abdbf );_bbdda .Add_W ();_bbdda .Add_n ();_fca -=2;_abdbf -=2;_bbdda .Add_q ();_bbdda .Add_re (2,2,_fca ,_abdbf );_bbdda .Add_W ();_bbdda .Add_n ();_accd :=_cf .Min (_fca /float64 (opt .Image .Width ),_abdbf /float64 (opt .Image .Height ));
_bbdda .Add_cm (_accd ,0,0,_accd ,(_egbe /2)-(float64 (opt .Image .Width )*_accd /2)+2,2);_bbdda .Add_Do ("\u0046\u0052\u004d");_bbdda .Add_Q ();_bbdda .Add_Q ();_beb :=_bf .NewXObjectForm ();_beb .FormType =_fc .MakeInteger (1);_beb .Resources =_ddcc ;
_beb .BBox =_fc .MakeArrayFromFloats ([]float64 {0,0,_egbe ,_ffff });_beb .Matrix =_fc .MakeArrayFromFloats ([]float64 {1.0,0.0,0.0,1.0,0.0,0.0});_beb .SetContentStream (_bbdda .Bytes (),_bcgc ());_dbg :=_fc .MakeDict ();_dbg .Set ("\u004e",_beb .ToPdfObject ());
_abdb .AP =_dbg ;_edbcc .Annotations =append (_edbcc .Annotations ,_abdb );return _edbcc ,nil ;};

// NewCheckboxField generates a new checkbox field with partial name `name` at location `rect`
// on specified `page` and with field specific options `opt`.
func NewCheckboxField (page *_bf .PdfPage ,name string ,rect []float64 ,opt CheckboxFieldOptions )(*_bf .PdfFieldButton ,error ){if page ==nil {return nil ,_e .New ("\u0070a\u0067e\u0020\u006e\u006f\u0074\u0020s\u0070\u0065c\u0069\u0066\u0069\u0065\u0064");
};if len (name )<=0{return nil ,_e .New ("\u0072\u0065\u0071\u0075\u0069\u0072\u0065\u0064\u0020\u0061\u0074\u0074\u0072\u0069\u0062u\u0074e\u0020\u006e\u006f\u0074\u0020\u0073\u0070\u0065\u0063\u0069\u0066\u0069\u0065\u0064");};if len (rect )!=4{return nil ,_e .New ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0072\u0061\u006e\u0067\u0065");
};_gbdb ,_bef :=_bf .NewStandard14Font (_bf .ZapfDingbatsName );if _bef !=nil {return nil ,_bef ;};_gbaa :=_bf .NewPdfField ();_gcf :=&_bf .PdfFieldButton {};_gbaa .SetContext (_gcf );_gcf .PdfField =_gbaa ;_gcf .T =_fc .MakeString (name );_gcf .SetType (_bf .ButtonTypeCheckbox );
_eagdd :="\u004f\u0066\u0066";if opt .Checked {_eagdd ="\u0059\u0065\u0073";};_gcf .V =_fc .MakeName (_eagdd );_fgac :=_bf .NewPdfAnnotationWidget ();_fgac .Rect =_fc .MakeArrayFromFloats (rect );_fgac .P =page .ToPdfObject ();_fgac .F =_fc .MakeInteger (4);
_fgac .Parent =_gcf .ToPdfObject ();_bfbbf :=rect [2]-rect [0];_afa :=rect [3]-rect [1];var _ege _c .Buffer ;_ege .WriteString ("\u0071\u000a");_ege .WriteString ("\u0030 \u0030\u0020\u0031\u0020\u0072\u0067\n");_ege .WriteString ("\u0042\u0054\u000a");
_ege .WriteString ("\u002f\u005a\u0061D\u0062\u0020\u0031\u0032\u0020\u0054\u0066\u000a");_ege .WriteString ("\u0045\u0054\u000a");_ege .WriteString ("\u0051\u000a");_eca :=_b .NewContentCreator ();_eca .Add_q ();_eca .Add_rg (0,0,1);_eca .Add_BT ();_eca .Add_Tf (*_fc .MakeName ("\u005a\u0061\u0044\u0062"),12);
_eca .Add_Td (0,0);_eca .Add_ET ();_eca .Add_Q ();_badb :=_bf .NewXObjectForm ();_badb .SetContentStream (_eca .Bytes (),_fc .NewRawEncoder ());_badb .BBox =_fc .MakeArrayFromFloats ([]float64 {0,0,_bfbbf ,_afa });_badb .Resources =_bf .NewPdfPageResources ();
_badb .Resources .SetFontByName ("\u005a\u0061\u0044\u0062",_gbdb .ToPdfObject ());_eca =_b .NewContentCreator ();_eca .Add_q ();_eca .Add_re (0,0,_bfbbf ,_afa );_eca .Add_W ().Add_n ();_eca .Add_rg (0,0,1);_eca .Translate (0,3.0);_eca .Add_BT ();_eca .Add_Tf (*_fc .MakeName ("\u005a\u0061\u0044\u0062"),12);
_eca .Add_Td (0,0);_eca .Add_Tj (*_fc .MakeString ("\u0034"));_eca .Add_ET ();_eca .Add_Q ();_aadf :=_bf .NewXObjectForm ();_aadf .SetContentStream (_eca .Bytes (),_fc .NewRawEncoder ());_aadf .BBox =_fc .MakeArrayFromFloats ([]float64 {0,0,_bfbbf ,_afa });
_aadf .Resources =_bf .NewPdfPageResources ();_aadf .Resources .SetFontByName ("\u005a\u0061\u0044\u0062",_gbdb .ToPdfObject ());_cdaa :=_fc .MakeDict ();_cdaa .Set ("\u004f\u0066\u0066",_badb .ToPdfObject ());_cdaa .Set ("\u0059\u0065\u0073",_aadf .ToPdfObject ());
_cbg :=_fc .MakeDict ();_cbg .Set ("\u004e",_cdaa );_fgac .AP =_cbg ;_fgac .AS =_fc .MakeName (_eagdd );_gcf .Annotations =append (_gcf .Annotations ,_fgac );return _gcf ,nil ;};func _ef (_fe CircleAnnotationDef )(*_fc .PdfObjectDictionary ,*_bf .PdfRectangle ,error ){_ab :=_bf .NewXObjectForm ();
_ab .Resources =_bf .NewPdfPageResources ();_fab :="";if _fe .Opacity < 1.0{_gf :=_fc .MakeDict ();_gf .Set ("\u0063\u0061",_fc .MakeFloat (_fe .Opacity ));_gf .Set ("\u0043\u0041",_fc .MakeFloat (_fe .Opacity ));_af :=_ab .Resources .AddExtGState ("\u0067\u0073\u0031",_gf );
if _af !=nil {_fa .Log .Debug ("U\u006e\u0061\u0062\u006c\u0065\u0020t\u006f\u0020\u0061\u0064\u0064\u0020\u0065\u0078\u0074g\u0073\u0074\u0061t\u0065 \u0067\u0073\u0031");return nil ,nil ,_af ;};_fab ="\u0067\u0073\u0031";};_cc ,_db ,_bb ,_ad :=_ccd (_fe ,_fab );
if _ad !=nil {return nil ,nil ,_ad ;};_ad =_ab .SetContentStream (_cc ,nil );if _ad !=nil {return nil ,nil ,_ad ;};_ab .BBox =_db .ToPdfObject ();_eff :=_fc .MakeDict ();_eff .Set ("\u004e",_ab .ToPdfObject ());return _eff ,_bb ,nil ;};

// Style returns the appearance style of `fa`. If not specified, returns default style.
func (_ed FieldAppearance )Style ()AppearanceStyle {if _ed ._ae !=nil {return *_ed ._ae ;};_fdb :=_ggb ;return AppearanceStyle {AutoFontSizeFraction :0.65,CheckmarkRune :'✔',BorderSize :0.0,BorderColor :_bf .NewPdfColorDeviceGray (0),FillColor :_bf .NewPdfColorDeviceGray (1),MultilineLineHeight :1.2,MultilineVAlignMiddle :false ,DrawAlignmentReticle :false ,AllowMK :true ,MarginLeft :&_fdb };
};

// SetStyle applies appearance `style` to `fa`.
func (_dcb *ImageFieldAppearance )SetStyle (style AppearanceStyle ){_dcb ._bab =&style };func _bcbb (_gbag LineAnnotationDef )(*_fc .PdfObjectDictionary ,*_bf .PdfRectangle ,error ){_ccdc :=_bf .NewXObjectForm ();_ccdc .Resources =_bf .NewPdfPageResources ();
_cge :="";if _gbag .Opacity < 1.0{_ebfd :=_fc .MakeDict ();_ebfd .Set ("\u0063\u0061",_fc .MakeFloat (_gbag .Opacity ));_ebbf :=_ccdc .Resources .AddExtGState ("\u0067\u0073\u0031",_ebfd );if _ebbf !=nil {_fa .Log .Debug ("U\u006e\u0061\u0062\u006c\u0065\u0020t\u006f\u0020\u0061\u0064\u0064\u0020\u0065\u0078\u0074g\u0073\u0074\u0061t\u0065 \u0067\u0073\u0031");
return nil ,nil ,_ebbf ;};_cge ="\u0067\u0073\u0031";};_bbad ,_fgfa ,_abg ,_gab :=_acgb (_gbag ,_cge );if _gab !=nil {return nil ,nil ,_gab ;};_gab =_ccdc .SetContentStream (_bbad ,nil );if _gab !=nil {return nil ,nil ,_gab ;};_ccdc .BBox =_fgfa .ToPdfObject ();
_ggg :=_fc .MakeDict ();_ggg .Set ("\u004e",_ccdc .ToPdfObject ());return _ggg ,_abg ,nil ;};func _bcd (_gc *_bf .PdfAnnotationWidget ,_deb *_bf .PdfFieldButton ,_caa *_bf .PdfPageResources ,_gdf AppearanceStyle )(*_fc .PdfObjectDictionary ,error ){_dee ,_aeab :=_fc .GetArray (_gc .Rect );
if !_aeab {return nil ,_e .New ("\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0052\u0065\u0063\u0074");};_gea ,_ceg :=_bf .NewPdfRectangle (*_dee );if _ceg !=nil {return nil ,_ceg ;};_gbg ,_ead :=_gea .Width (),_gea .Height ();_gdg ,_eag :=_gbg ,_ead ;
_fa .Log .Debug ("\u0043\u0068\u0065\u0063kb\u006f\u0078\u002c\u0020\u0077\u0061\u0020\u0042\u0053\u003a\u0020\u0025\u0076",_gc .BS );_edf ,_ceg :=_bf .NewStandard14Font ("\u005a\u0061\u0070f\u0044\u0069\u006e\u0067\u0062\u0061\u0074\u0073");if _ceg !=nil {return nil ,_ceg ;
};_cdb ,_ffe :=_fc .GetDict (_gc .MK );if _ffe {_afeg ,_ :=_fc .GetDict (_gc .BS );_fcc :=_gdf .applyAppearanceCharacteristics (_cdb ,_afeg ,_edf );if _fcc !=nil {return nil ,_fcc ;};};_agf :=_bf .NewXObjectForm ();{_dagb :=_b .NewContentCreator ();if _gdf .BorderSize > 0{_aegb (_dagb ,_gdf ,_gbg ,_ead );
};if _gdf .DrawAlignmentReticle {_fac :=_gdf ;_fac .BorderSize =0.2;_gfab (_dagb ,_fac ,_gbg ,_ead );};_gbg ,_ead =_gdf .applyRotation (_cdb ,_gbg ,_ead ,_dagb );_adg :=_gdf .AutoFontSizeFraction *_ead ;_cea ,_gca :=_edf .GetRuneMetrics (_gdf .CheckmarkRune );
if !_gca {return nil ,_e .New ("\u0067l\u0079p\u0068\u0020\u006e\u006f\u0074\u0020\u0066\u006f\u0075\u006e\u0064");};_caad :=_edf .Encoder ();_ccaa :=_caad .Encode (string (_gdf .CheckmarkRune ));_bbf :=_cea .Wx *_adg /1000.0;_ebce :=705.0;_bbg :=_ebce /1000.0*_adg ;
_cabb :=_ggb ;if _gdf .MarginLeft !=nil {_cabb =*_gdf .MarginLeft ;};_dcc :=1.0;if _bbf < _gbg {_cabb =(_gbg -_bbf )/2.0;};if _bbg < _ead {_dcc =(_ead -_bbg )/2.0;};_dagb .Add_q ().Add_g (0).Add_BT ().Add_Tf ("\u005a\u0061\u0044\u0062",_adg ).Add_Td (_cabb ,_dcc ).Add_Tj (*_fc .MakeStringFromBytes (_ccaa )).Add_ET ().Add_Q ();
_agf .Resources =_bf .NewPdfPageResources ();_agf .Resources .SetFontByName ("\u005a\u0061\u0044\u0062",_edf .ToPdfObject ());_agf .BBox =_fc .MakeArrayFromFloats ([]float64 {0,0,_gdg ,_eag });_agf .SetContentStream (_dagb .Bytes (),_bcgc ());};_dbac :=_bf .NewXObjectForm ();
{_fbc :=_b .NewContentCreator ();if _gdf .BorderSize > 0{_aegb (_fbc ,_gdf ,_gbg ,_ead );};_dbac .BBox =_fc .MakeArrayFromFloats ([]float64 {0,0,_gdg ,_eag });_dbac .SetContentStream (_fbc .Bytes (),_bcgc ());};_ffed :=_fc .MakeDict ();_ffed .Set ("\u004f\u0066\u0066",_dbac .ToPdfObject ());
_ffed .Set ("\u0059\u0065\u0073",_agf .ToPdfObject ());_ace :=_fc .MakeDict ();_ace .Set ("\u004e",_ffed );return _ace ,nil ;};

// AppearanceFont represents a font used for generating the appearance of a
// field in the filling/flattening process.
type AppearanceFont struct{

// Name represents the name of the font which will be added to the
// AcroForm resources (DR).
Name string ;

// Font represents the actual font used for the field appearance.
Font *_bf .PdfFont ;

// Size represents the size of the font used for the field appearance.
// If the font size is 0, the value of the FallbackSize field of the
// AppearanceFontStyle is used, if set. Otherwise, the font size is
// calculated based on the available annotation height and on the
// AutoFontSizeFraction field of the AppearanceStyle.
Size float64 ;};type quadding int ;