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 (_g "bytes";_c "errors";_a "github.com/unidoc/unipdf/v3/common";_f "github.com/unidoc/unipdf/v3/contentstream";_gad "github.com/unidoc/unipdf/v3/contentstream/draw";_ef "github.com/unidoc/unipdf/v3/core";_ab "github.com/unidoc/unipdf/v3/internal/textencoding";
_aa "github.com/unidoc/unipdf/v3/model";_ga "image";_ea "math";_e "strings";_de "unicode";);func _cdg (_dead *_aa .PdfField ,_eedc ,_gdab float64 ,_fdgb string ,_fafa AppearanceStyle ,_egc *_f .ContentStreamOperations ,_agf *_aa .PdfPageResources ,_defe *_ef .PdfObjectDictionary )(*_aa .XObjectForm ,error ){_badb :=_aa .NewPdfPageResources ();
_fea ,_cacg :=_eedc ,_gdab ;_cbb :=_f .NewContentCreator ();if _fafa .BorderSize > 0{_deaf (_cbb ,_fafa ,_eedc ,_gdab );};if _fafa .DrawAlignmentReticle {_aef :=_fafa ;_aef .BorderSize =0.2;_aca (_cbb ,_aef ,_eedc ,_gdab );};_cbb .Add_BMC ("\u0054\u0078");
_cbb .Add_q ();_cbb .Add_BT ();_eedc ,_gdab =_fafa .applyRotation (_defe ,_eedc ,_gdab ,_cbb );_cbe ,_cffd ,_gfa :=_fafa .processDA (_dead ,_egc ,_agf ,_badb ,_cbb );if _gfa !=nil {return nil ,_gfa ;};_gbg :=_cbe .Font ;_bbb :=_cbe .Size ;_eddd :=_ef .MakeName (_cbe .Name );
_ecdf :=_bbb ==0;if _ecdf &&_cffd {_bbb =_gdab *_fafa .AutoFontSizeFraction ;};_edee :=_gbg .Encoder ();if _edee ==nil {_a .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");
_edee =_ab .NewIdentityTextEncoder ("\u0049\u0064\u0065\u006e\u0074\u0069\u0074\u0079\u002d\u0048");};if len (_fdgb )==0{return nil ,nil ;};_abgg :=2.0;_dgg :=0.0;if _edee !=nil {for _ ,_bef :=range _fdgb {_gba ,_gae :=_gbg .GetRuneMetrics (_bef );if !_gae {_a .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",_bef );
continue ;};_dgg +=_gba .Wx ;};_fdgb =string (_edee .Encode (_fdgb ));};if _bbb ==0||_ecdf &&_dgg > 0&&_abgg +_dgg *_bbb /1000.0> _eedc {_bbb =0.95*1000.0*(_eedc -_abgg )/_dgg ;};_bce :=1.0*_bbb ;_fdgc :=2.0;{_gbdf :=_bce ;if _ecdf &&_fdgc +_gbdf > _gdab {_bbb =0.95*(_gdab -_fdgc );
_bce =1.0*_bbb ;_gbdf =_bce ;};if _gdab > _gbdf {_fdgc =(_gdab -_gbdf )/2.0;_fdgc +=1.50;};};_cbb .Add_Tf (*_eddd ,_bbb );_cbb .Add_Td (_abgg ,_fdgc );_cbb .Add_Tj (*_ef .MakeString (_fdgb ));_cbb .Add_ET ();_cbb .Add_Q ();_cbb .Add_EMC ();_gcbb :=_aa .NewXObjectForm ();
_gcbb .Resources =_badb ;_gcbb .BBox =_ef .MakeArrayFromFloats ([]float64 {0,0,_fea ,_cacg });_gcbb .SetContentStream (_cbb .Bytes (),_daa ());return _gcbb ,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 *_aa .PdfSignature ,lines []*SignatureLine ,opts *SignatureFieldOpts )(*_aa .PdfFieldSignature ,error ){if signature ==nil {return nil ,_c .New ("\u0073\u0069\u0067na\u0074\u0075\u0072\u0065\u0020\u0063\u0061\u006e\u006e\u006f\u0074\u0020\u0062\u0065\u0020\u006e\u0069\u006c");
};_gbb ,_bced :=_ead (lines ,opts );if _bced !=nil {return nil ,_bced ;};_fac :=_aa .NewPdfFieldSignature (signature );_fac .Rect =_ef .MakeArrayFromFloats (opts .Rect );_fac .AP =_gbb ;return _fac ,nil ;};func _gbedg (_fadeb RectangleAnnotationDef ,_efa string )([]byte ,*_aa .PdfRectangle ,*_aa .PdfRectangle ,error ){_ggfe :=_gad .Rectangle {X :0,Y :0,Width :_fadeb .Width ,Height :_fadeb .Height ,FillEnabled :_fadeb .FillEnabled ,FillColor :_fadeb .FillColor ,BorderEnabled :_fadeb .BorderEnabled ,BorderWidth :2*_fadeb .BorderWidth ,BorderColor :_fadeb .BorderColor ,Opacity :_fadeb .Opacity };
_ece ,_gfgb ,_fbbb :=_ggfe .Draw (_efa );if _fbbb !=nil {return nil ,nil ,nil ,_fbbb ;};_afgd :=&_aa .PdfRectangle {};_afgd .Llx =_fadeb .X +_gfgb .Llx ;_afgd .Lly =_fadeb .Y +_gfgb .Lly ;_afgd .Urx =_fadeb .X +_gfgb .Urx ;_afgd .Ury =_fadeb .Y +_gfgb .Ury ;
return _ece ,_gfgb ,_afgd ,nil ;};func _ead (_gga []*SignatureLine ,_abfd *SignatureFieldOpts )(*_ef .PdfObjectDictionary ,error ){if _abfd ==nil {_abfd =NewSignatureFieldOpts ();};var _afab error ;var _daaa *_ef .PdfObjectName ;_eefe :=_abfd .Font ;if _eefe !=nil {_aba ,_ :=_eefe .GetFontDescriptor ();
if _aba !=nil {if _fade ,_eecg :=_aba .FontName .(*_ef .PdfObjectName );_eecg {_daaa =_fade ;};};if _daaa ==nil {_daaa =_ef .MakeName ("\u0046\u006f\u006et\u0031");};}else {if _eefe ,_afab =_aa .NewStandard14Font ("\u0048e\u006c\u0076\u0065\u0074\u0069\u0063a");
_afab !=nil {return nil ,_afab ;};_daaa =_ef .MakeName ("\u0048\u0065\u006c\u0076");};_fcfe :=_abfd .FontSize ;if _fcfe <=0{_fcfe =10;};if _abfd .LineHeight <=0{_abfd .LineHeight =1;};_dfb :=_abfd .LineHeight *_fcfe ;_bgf ,_agba :=_eefe .GetRuneMetrics (' ');
if !_agba {return nil ,_c .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");};_fdeg :=_bgf .Wx ;var _dbfc float64 ;var _aee []string ;
for _ ,_cbbd :=range _gga {if _cbbd .Text ==""{continue ;};_fdede :=_cbbd .Text ;if _cbbd .Desc !=""{_fdede =_cbbd .Desc +"\u003a\u0020"+_fdede ;};_aee =append (_aee ,_fdede );var _deff float64 ;for _ ,_daef :=range _fdede {_fbbc ,_dda :=_eefe .GetRuneMetrics (_daef );
if !_dda {continue ;};_deff +=_fbbc .Wx ;};if _deff > _dbfc {_dbfc =_deff ;};};_dbfc =_dbfc *_fcfe /1000.0;_faa :=float64 (len (_aee ))*_dfb ;_adg :=_abfd .Image !=nil ;_ceg :=_abfd .Rect ;if _ceg ==nil {_ceg =[]float64 {0,0,_dbfc ,_faa };if _adg {_ceg [2]=_dbfc *2;
_ceg [3]=_faa *2;};_abfd .Rect =_ceg ;};_ccca :=_ceg [2]-_ceg [0];_fce :=_ceg [3]-_ceg [1];_ffeea ,_adbd :=_ceg ,_ceg ;var _ccb ,_fadf float64 ;if _adg &&len (_aee )> 0{if _abfd .ImagePosition <=SignatureImageRight {_eae :=[]float64 {_ceg [0],_ceg [1],_ceg [0]+(_ccca /2),_ceg [3]};
_cgdb :=[]float64 {_ceg [0]+(_ccca /2),_ceg [1],_ceg [2],_ceg [3]};if _abfd .ImagePosition ==SignatureImageLeft {_ffeea ,_adbd =_eae ,_cgdb ;}else {_ffeea ,_adbd =_cgdb ,_eae ;};}else {_ecb :=[]float64 {_ceg [0],_ceg [1],_ceg [2],_ceg [1]+(_fce /2)};_bgca :=[]float64 {_ceg [0],_ceg [1]+(_fce /2),_ceg [2],_ceg [3]};
if _abfd .ImagePosition ==SignatureImageTop {_ffeea ,_adbd =_bgca ,_ecb ;}else {_ffeea ,_adbd =_ecb ,_bgca ;};};};_ccb =_adbd [2]-_adbd [0];_fadf =_adbd [3]-_adbd [1];var _bfaa float64 ;if _abfd .AutoSize {if _dbfc > _ccb ||_faa > _fadf {_bbd :=_ea .Min (_ccb /_dbfc ,_fadf /_faa );
_fcfe *=_bbd ;};_dfb =_abfd .LineHeight *_fcfe ;_bfaa +=(_fadf -float64 (len (_aee ))*_dfb )/2;};_faffb :=_f .NewContentCreator ();_fbd :=_aa .NewPdfPageResources ();_fbd .SetFontByName (*_daaa ,_eefe .ToPdfObject ());if _abfd .BorderSize <=0{_abfd .BorderSize =0;
_abfd .BorderColor =_aa .NewPdfColorDeviceGray (1);};if _abfd .BorderColor ==nil {_abfd .BorderColor =_aa .NewPdfColorDeviceGray (1);};if _abfd .FillColor ==nil {_abfd .FillColor =_aa .NewPdfColorDeviceGray (1);};_faffb .Add_q ().SetNonStrokingColor (_abfd .FillColor ).SetStrokingColor (_abfd .BorderColor ).Add_w (_abfd .BorderSize ).Add_re (_ceg [0],_ceg [1],_ccca ,_fce ).Add_B ().Add_Q ();
if _abfd .WatermarkImage !=nil {_eaeb :=[]float64 {_ceg [0],_ceg [1],_ceg [2],_ceg [3]};_cfgdd ,_cefg ,_egaf :=_fcff (_abfd .WatermarkImage ,"\u0049\u006d\u0061\u0067\u0065\u0057\u0061\u0074\u0065r\u006d\u0061\u0072\u006b",_abfd ,_eaeb ,_faffb );if _egaf !=nil {return nil ,_egaf ;
};_fbd .SetXObjectImageByName (*_cfgdd ,_cefg );};_faffb .Add_q ();_faffb .Translate (_adbd [0],_adbd [3]-_dfb -_bfaa );_faffb .Add_BT ();_dgga :=_eefe .Encoder ();for _ ,_cdcf :=range _aee {var _fafaf []byte ;for _ ,_cfc :=range _cdcf {if _de .IsSpace (_cfc ){if len (_fafaf )> 0{_faffb .SetNonStrokingColor (_abfd .TextColor ).Add_Tf (*_daaa ,_fcfe ).Add_TL (_dfb ).Add_TJ ([]_ef .PdfObject {_ef .MakeStringFromBytes (_fafaf )}...);
_fafaf =nil ;};_faffb .Add_Tf (*_daaa ,_fcfe ).Add_TL (_dfb ).Add_TJ ([]_ef .PdfObject {_ef .MakeFloat (-_fdeg )}...);}else {_fafaf =append (_fafaf ,_dgga .Encode (string (_cfc ))...);};};if len (_fafaf )> 0{_faffb .SetNonStrokingColor (_abfd .TextColor ).Add_Tf (*_daaa ,_fcfe ).Add_TL (_dfb ).Add_TJ ([]_ef .PdfObject {_ef .MakeStringFromBytes (_fafaf )}...);
};_faffb .Add_Td (0,-_dfb );};_faffb .Add_ET ();_faffb .Add_Q ();if _adg {_egca ,_ffda ,_ecbd :=_fcff (_abfd .Image ,"\u0049\u006d\u0061\u0067\u0065\u0053\u0069\u0067\u006ea\u0074\u0075\u0072\u0065",_abfd ,_ffeea ,_faffb );if _ecbd !=nil {return nil ,_ecbd ;
};_fbd .SetXObjectImageByName (*_egca ,_ffda );};_egbd :=_aa .NewXObjectForm ();_egbd .Resources =_fbd ;_egbd .BBox =_ef .MakeArrayFromFloats (_ceg );_egbd .SetContentStream (_faffb .Bytes (),_daa ());_ebd :=_ef .MakeDict ();_ebd .Set ("\u004e",_egbd .ToPdfObject ());
return _ebd ,nil ;};func (_cfgd *AppearanceStyle )processDA (_eegg *_aa .PdfField ,_fdbd *_f .ContentStreamOperations ,_fda ,_aac *_aa .PdfPageResources ,_cbed *_f .ContentCreator )(*AppearanceFont ,bool ,error ){var _fcgc *AppearanceFont ;var _dbeg bool ;
if _cfgd .Fonts !=nil {if _cfgd .Fonts .Fallback !=nil {_fcgc =_cfgd .Fonts .Fallback ;};if _fagf :=_cfgd .Fonts .FieldFallbacks ;_fagf !=nil {if _cgc ,_acb :=_fagf [_eegg .PartialName ()];_acb {_fcgc =_cgc ;}else if _cfb ,_adff :=_eegg .FullName ();_adff ==nil {if _fdgf ,_afce :=_fagf [_cfb ];
_afce {_fcgc =_fdgf ;};};};_dbeg =_cfgd .Fonts .ForceReplace ;};var _baee string ;var _bac float64 ;var _eedgd bool ;if _fdbd !=nil {for _ ,_dbfg :=range *_fdbd {if _dbfg .Operand =="\u0054\u0066"&&len (_dbfg .Params )==2{if _dbed ,_afda :=_ef .GetNameVal (_dbfg .Params [0]);
_afda {_baee =_dbed ;};if _gbed ,_dgbd :=_ef .GetNumberAsFloat (_dbfg .Params [1]);_dgbd ==nil {_bac =_gbed ;};_eedgd =true ;continue ;};_cbed .AddOperand (*_dbfg );};};var _ffd *AppearanceFont ;var _edfd _ef .PdfObject ;if _dbeg &&_fcgc !=nil {_ffd =_fcgc ;
}else {if _fda !=nil &&_baee !=""{if _gdad ,_cfgb :=_fda .GetFontByName (*_ef .MakeName (_baee ));_cfgb {if _bece ,_edgce :=_aa .NewPdfFontFromPdfObject (_gdad );_edgce ==nil {_edfd =_gdad ;_ffd =&AppearanceFont {Name :_baee ,Font :_bece ,Size :_bac };
}else {_a .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",_edgce );
};};};if _ffd ==nil &&_fcgc !=nil {_ffd =_fcgc ;};if _ffd ==nil {_ffdc ,_gce :=_aa .NewStandard14Font ("\u0048e\u006c\u0076\u0065\u0074\u0069\u0063a");if _gce !=nil {return nil ,false ,_gce ;};_ffd =&AppearanceFont {Name :"\u0048\u0065\u006c\u0076",Font :_ffdc ,Size :_bac };
};};_egce :=*_ef .MakeName (_ffd .Name );if _edfd ==nil {_edfd =_ffd .Font .ToPdfObject ();};if _fda !=nil &&!_fda .HasFontByName (_egce ){_fda .SetFontByName (_egce ,_edfd );};if _aac !=nil &&!_aac .HasFontByName (_egce ){_aac .SetFontByName (_egce ,_edfd );
};return _ffd ,_eedgd ,nil ;};

// NewSignatureFieldOpts returns a new initialized instance of options
// used to generate a signature appearance.
func NewSignatureFieldOpts ()*SignatureFieldOpts {return &SignatureFieldOpts {Font :_aa .DefaultFont (),FontSize :10,LineHeight :1,AutoSize :true ,TextColor :_aa .NewPdfColorDeviceGray (0),BorderColor :_aa .NewPdfColorDeviceGray (0),FillColor :_aa .NewPdfColorDeviceGray (1),Encoder :_ef .NewFlateEncoder (),ImagePosition :SignatureImageLeft };
};func _fcff (_ccbg _ga .Image ,_cecd string ,_fgaf *SignatureFieldOpts ,_cbd []float64 ,_aeag *_f .ContentCreator )(*_ef .PdfObjectName ,*_aa .XObjectImage ,error ){_acbd ,_agd :=_aa .DefaultImageHandler {}.NewImageFromGoImage (_ccbg );if _agd !=nil {return nil ,nil ,_agd ;
};_fcgf ,_agd :=_aa .NewXObjectImageFromImage (_acbd ,nil ,_fgaf .Encoder );if _agd !=nil {return nil ,nil ,_agd ;};_dfe ,_bfg :=float64 (*_fcgf .Width ),float64 (*_fcgf .Height );_fgg :=_cbd [2]-_cbd [0];_ecc :=_cbd [3]-_cbd [1];if _fgaf .AutoSize {_beb :=_ea .Min (_fgg /_dfe ,_ecc /_bfg );
_dfe *=_beb ;_bfg *=_beb ;_cbd [0]=_cbd [0]+(_fgg /2)-(_dfe /2);_cbd [1]=_cbd [1]+(_ecc /2)-(_bfg /2);};var _afbg *_ef .PdfObjectName ;if _gab ,_cafb :=_ef .GetName (_fcgf .Name );_cafb {_afbg =_gab ;}else {_afbg =_ef .MakeName (_cecd );};if _aeag !=nil {_aeag .Add_q ().Translate (_cbd [0],_cbd [1]).Scale (_dfe ,_bfg ).Add_Do (*_afbg ).Add_Q ();
}else {return nil ,nil ,_c .New ("\u0043\u006f\u006e\u0074en\u0074\u0043\u0072\u0065\u0061\u0074\u006f\u0072\u0020\u0069\u0073\u0020\u006e\u0075l\u006c");};return _afbg ,_fcgf ,nil ;};

// 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 *_aa .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_aa .PdfColorDeviceRGB ;Opacity float64 ;};

// 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 (_dfaf FieldAppearance )WrapContentStream (page *_aa .PdfPage )error {_dgfe ,_gaaf :=page .GetAllContentStreams ();if _gaaf !=nil {return _gaaf ;};_fbe :=_f .NewContentStreamParser (_dgfe );_ccf ,_gaaf :=_fbe .Parse ();if _gaaf !=nil {return _gaaf ;
};_ccf .WrapIfNeeded ();_ddb :=[]string {_ccf .String ()};return page .SetContentStreams (_ddb ,_daa ());};func _deaf (_ffb *_f .ContentCreator ,_defc AppearanceStyle ,_dcac ,_gbfc float64 ){_ffb .Add_q ().Add_re (0,0,_dcac ,_gbfc ).Add_w (_defc .BorderSize ).SetStrokingColor (_defc .BorderColor ).SetNonStrokingColor (_defc .FillColor ).Add_B ().Add_Q ();
};func _gaa (_abc CircleAnnotationDef )(*_ef .PdfObjectDictionary ,*_aa .PdfRectangle ,error ){_abe :=_aa .NewXObjectForm ();_abe .Resources =_aa .NewPdfPageResources ();_abd :="";if _abc .Opacity < 1.0{_gd :=_ef .MakeDict ();_gd .Set ("\u0063\u0061",_ef .MakeFloat (_abc .Opacity ));
_gd .Set ("\u0043\u0041",_ef .MakeFloat (_abc .Opacity ));_df :=_abe .Resources .AddExtGState ("\u0067\u0073\u0031",_gd );if _df !=nil {_a .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 ,_df ;};_abd ="\u0067\u0073\u0031";};_gb ,_fc ,_cf ,_ed :=_gc (_abc ,_abd );if _ed !=nil {return nil ,nil ,_ed ;};_ed =_abe .SetContentStream (_gb ,nil );if _ed !=nil {return nil ,nil ,_ed ;};_abe .BBox =_fc .ToPdfObject ();_eda :=_ef .MakeDict ();
_eda .Set ("\u004e",_abe .ToPdfObject ());return _eda ,_cf ,nil ;};func _cde (_ddd *_aa .PdfField )string {if _ddd ==nil {return "";};_caf ,_agff :=_ddd .GetContext ().(*_aa .PdfFieldText );if !_agff {return _cde (_ddd .Parent );};if _caf .DA !=nil {return _caf .DA .Str ();
};return _cde (_caf .Parent );};func _ae (_gbe *_aa .PdfAnnotationWidget ,_fge *_aa .PdfFieldText ,_dae *_aa .PdfPageResources ,_abdg AppearanceStyle )(*_ef .PdfObjectDictionary ,error ){_gcg :=_aa .NewPdfPageResources ();_bc ,_ba :=_ef .GetArray (_gbe .Rect );
if !_ba {return nil ,_c .New ("\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0052\u0065\u0063\u0074");};_eee ,_ec :=_aa .NewPdfRectangle (*_bc );if _ec !=nil {return nil ,_ec ;};_cgg ,_aec :=_eee .Width (),_eee .Height ();_abb ,_agb :=_cgg ,_aec ;_edg ,_dgf :=_ef .GetDict (_gbe .MK );
if _dgf {_gea ,_ :=_ef .GetDict (_gbe .BS );_aab :=_abdg .applyAppearanceCharacteristics (_edg ,_gea ,nil );if _aab !=nil {return nil ,_aab ;};};_dbd ,_ec :=_f .NewContentStreamParser (_cde (_fge .PdfField )).Parse ();if _ec !=nil {return nil ,_ec ;};_eed :=_f .NewContentCreator ();
if _abdg .BorderSize > 0{_deaf (_eed ,_abdg ,_cgg ,_aec );};if _abdg .DrawAlignmentReticle {_cga :=_abdg ;_cga .BorderSize =0.2;_aca (_eed ,_cga ,_cgg ,_aec );};_eed .Add_BMC ("\u0054\u0078");_eed .Add_q ();_cgg ,_aec =_abdg .applyRotation (_edg ,_cgg ,_aec ,_eed );
_eed .Add_BT ();_eedg ,_cba ,_ec :=_abdg .processDA (_fge .PdfField ,_dbd ,_dae ,_gcg ,_eed );if _ec !=nil {return nil ,_ec ;};_ccge :=_eedg .Font ;_geb :=_eedg .Size ;_ddf :=_ef .MakeName (_eedg .Name );_bad :=_geb ==0;if _bad &&_cba {_geb =_aec *_abdg .AutoFontSizeFraction ;
};_gdfd :=_ccge .Encoder ();if _gdfd ==nil {_a .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");
_gdfd =_ab .NewIdentityTextEncoder ("\u0049\u0064\u0065\u006e\u0074\u0069\u0074\u0079\u002d\u0048");};_gfe ,_ec :=_ccge .GetFontDescriptor ();if _ec !=nil {_a .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 _cac string ;if _gcgf ,_fd :=_ef .GetString (_fge .V );_fd {_cac =_gcgf .Decoded ();};if len (_cac )==0{return nil ,nil ;};_fgf :=[]string {_cac };_bcd :=false ;if _fge .Flags ().Has (_aa .FieldFlagMultiline ){_bcd =true ;_cac =_e .Replace (_cac ,"\u000d\u000a","\u000a",-1);
_cac =_e .Replace (_cac ,"\u000d","\u000a",-1);_fgf =_e .Split (_cac ,"\u000a");};_ggc :=0.0;_fe :=0;if _gdfd !=nil {_cfg :=len (_fgf );_fb :=0;for _fb < _cfg {var _cd float64 ;_daec :=-1;_bf :=0.0;for _ce ,_baf :=range _fgf [_fb ]{if _baf ==' '{_daec =_ce ;
_cd =_bf ;};_cgd ,_dad :=_ccge .GetRuneMetrics (_baf );if !_dad {_a .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",_baf );
continue ;};_bf +=_cgd .Wx ;if _bcd &&!_bad &&_geb *_bf /1000.0> _cgg &&_daec > 0{_bab :=_fgf [_fb ][_daec +1:];if _fb < len (_fgf )-1{_fgf =append (_fgf [:_fb +1],_fgf [_fb :]...);_fgf [_fb +1]=_bab ;}else {_fgf =append (_fgf ,_bab );};_cfg ++;_fgf [_fb ]=_fgf [_fb ][0:_daec ];
_bf =_cd ;break ;};};if _bf > _ggc {_ggc =_bf ;};_fgf [_fb ]=string (_gdfd .Encode (_fgf [_fb ]));if len (_fgf [_fb ])> 0{_fe ++;};_fb ++;};};_eag :=2.0;if _geb ==0||_bad &&_ggc > 0&&_eag +_ggc *_geb /1000.0> _cgg {_geb =0.95*1000.0*(_cgg -_eag )/_ggc ;
};_dbf :=_db ;{if _cee ,_caa :=_ef .GetIntVal (_fge .Q );_caa {switch _cee {case 0:_dbf =_db ;case 1:_dbf =_ccg ;case 2:_dbf =_gcb ;default:_a .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",_cee );
};};};_ffe :=_abdg .MultilineLineHeight ;_bada :=_geb ;if _bcd &&_fe > 1{_bada =_ffe *_geb ;};var _ffee float64 ;if _gfe !=nil {_ffee ,_ec =_gfe .GetCapHeight ();if _ec !=nil {_a .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",_ec );
};};if int (_ffee )<=0{_a .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");
_ffee =1000;};_afc :=_ffee /1000.0*_geb ;_cgb :=0.0;{_fef :=float64 (_fe )*_bada ;if _bad &&_cgb +_fef > _aec {_geb =0.95*(_aec -_cgb )/float64 (_fe );_bada =_geb ;if _bcd &&_fe > 1{_bada =_ffe *_geb ;};_afc =_ffee /1000.0*_geb ;_fef =float64 (_fe )*_bada ;
};if _aec > _fef {if _bcd {if _abdg .MultilineVAlignMiddle {_fdc :=(_aec -_fef )/2.0;_edf :=_fdc +_fef -_bada ;_cgb =_edf ;}else {_cgb =_aec -_bada ;_cgb -=_geb *0.5;};}else {_cgb =(_aec -_afc )/2.0;};};};_eed .Add_Tf (*_ddf ,_geb );_eed .Add_Td (_eag ,_cgb );
_bb :=_eag ;_ged :=_eag ;for _gfc ,_bbe :=range _fgf {_acf :=0.0;for _ ,_gca :=range _bbe {_fgb ,_dcd :=_ccge .GetRuneMetrics (_gca );if !_dcd {continue ;};_acf +=_fgb .Wx ;};_ggb :=_acf /1000.0*_geb ;_ede :=_cgg -_ggb ;var _gfeb float64 ;switch _dbf {case _db :_gfeb =_bb ;
case _ccg :_gfeb =_ede /2;case _gcb :_gfeb =_ede ;};_eag =_gfeb -_ged ;if _eag > 0.0{_eed .Add_Td (_eag ,0);};_ged =_gfeb ;_eed .Add_Tj (*_ef .MakeString (_bbe ));if _gfc < len (_fgf )-1{_eed .Add_Td (0,-_bada *_ffe );};};_eed .Add_ET ();_eed .Add_Q ();
_eed .Add_EMC ();_fdb :=_aa .NewXObjectForm ();_fdb .Resources =_gcg ;_fdb .BBox =_ef .MakeArrayFromFloats ([]float64 {0,0,_abb ,_agb });_fdb .SetContentStream (_eed .Bytes (),_daa ());_bd :=_ef .MakeDict ();_bd .Set ("\u004e",_fdb .ToPdfObject ());return _bd ,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 ;_eb *AppearanceStyle ;};func _fbdd (_accd LineAnnotationDef )(*_ef .PdfObjectDictionary ,*_aa .PdfRectangle ,error ){_cdcfe :=_aa .NewXObjectForm ();_cdcfe .Resources =_aa .NewPdfPageResources ();
_gdeg :="";if _accd .Opacity < 1.0{_fbcg :=_ef .MakeDict ();_fbcg .Set ("\u0063\u0061",_ef .MakeFloat (_accd .Opacity ));_add :=_cdcfe .Resources .AddExtGState ("\u0067\u0073\u0031",_fbcg );if _add !=nil {_a .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 ,_add ;};_gdeg ="\u0067\u0073\u0031";};_cge ,_ebb ,_cbdg ,_dgfa :=_ggf (_accd ,_gdeg );if _dgfa !=nil {return nil ,nil ,_dgfa ;};_dgfa =_cdcfe .SetContentStream (_cge ,nil );if _dgfa !=nil {return nil ,nil ,_dgfa ;};_cdcfe .BBox =_ebb .ToPdfObject ();
_dge :=_ef .MakeDict ();_dge .Set ("\u004e",_cdcfe .ToPdfObject ());return _dge ,_cbdg ,nil ;};

// 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 *_aa .PdfPage ,name string ,rect []float64 ,opt ComboboxFieldOptions )(*_aa .PdfFieldChoice ,error ){if page ==nil {return nil ,_c .New ("\u0070a\u0067e\u0020\u006e\u006f\u0074\u0020s\u0070\u0065c\u0069\u0066\u0069\u0065\u0064");
};if len (name )<=0{return nil ,_c .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 ,_c .New ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0072\u0061\u006e\u0067\u0065");
};_bfae :=_aa .NewPdfField ();_cefgb :=&_aa .PdfFieldChoice {};_bfae .SetContext (_cefgb );_cefgb .PdfField =_bfae ;_cefgb .T =_ef .MakeString (name );_cefgb .Opt =_ef .MakeArray ();for _ ,_cbga :=range opt .Choices {_cefgb .Opt .Append (_ef .MakeString (_cbga ));
};_cefgb .SetFlag (_aa .FieldFlagCombo );_gaafd :=_aa .NewPdfAnnotationWidget ();_gaafd .Rect =_ef .MakeArrayFromFloats (rect );_gaafd .P =page .ToPdfObject ();_gaafd .F =_ef .MakeInteger (4);_gaafd .Parent =_cefgb .ToPdfObject ();_cefgb .Annotations =append (_cefgb .Annotations ,_gaafd );
return _cefgb ,nil ;};func _efc (_gdcc *_aa .PdfAnnotationWidget ,_aad *_aa .PdfFieldButton ,_ccga *_aa .PdfPageResources ,_gef AppearanceStyle )(*_ef .PdfObjectDictionary ,error ){_cgdf ,_ebfc :=_ef .GetArray (_gdcc .Rect );if !_ebfc {return nil ,_c .New ("\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0052\u0065\u0063\u0074");
};_efd ,_ecd :=_aa .NewPdfRectangle (*_cgdf );if _ecd !=nil {return nil ,_ecd ;};_eac ,_cfda :=_efd .Width (),_efd .Height ();_fag ,_abfa :=_eac ,_cfda ;_a .Log .Debug ("\u0043\u0068\u0065\u0063kb\u006f\u0078\u002c\u0020\u0077\u0061\u0020\u0042\u0053\u003a\u0020\u0025\u0076",_gdcc .BS );
_geec ,_ecd :=_aa .NewStandard14Font ("\u005a\u0061\u0070f\u0044\u0069\u006e\u0067\u0062\u0061\u0074\u0073");if _ecd !=nil {return nil ,_ecd ;};_gdae ,_daee :=_ef .GetDict (_gdcc .MK );if _daee {_aff ,_ :=_ef .GetDict (_gdcc .BS );_beg :=_gef .applyAppearanceCharacteristics (_gdae ,_aff ,_geec );
if _beg !=nil {return nil ,_beg ;};};_afb :=_aa .NewXObjectForm ();{_bfd :=_f .NewContentCreator ();if _gef .BorderSize > 0{_deaf (_bfd ,_gef ,_eac ,_cfda );};if _gef .DrawAlignmentReticle {_ced :=_gef ;_ced .BorderSize =0.2;_aca (_bfd ,_ced ,_eac ,_cfda );
};_eac ,_cfda =_gef .applyRotation (_gdae ,_eac ,_cfda ,_bfd );_gdfg :=_gef .AutoFontSizeFraction *_cfda ;_bcg ,_eba :=_geec .GetRuneMetrics (_gef .CheckmarkRune );if !_eba {return nil ,_c .New ("\u0067l\u0079p\u0068\u0020\u006e\u006f\u0074\u0020\u0066\u006f\u0075\u006e\u0064");
};_gdb :=_geec .Encoder ();_ebc :=_gdb .Encode (string (_gef .CheckmarkRune ));_eace :=_bcg .Wx *_gdfg /1000.0;_egd :=705.0;_fdd :=_egd /1000.0*_gdfg ;_aabb :=2.0;_gbf :=1.0;if _eace < _eac {_aabb =(_eac -_eace )/2.0;};if _fdd < _cfda {_gbf =(_cfda -_fdd )/2.0;
};_bfd .Add_q ().Add_g (0).Add_BT ().Add_Tf ("\u005a\u0061\u0044\u0062",_gdfg ).Add_Td (_aabb ,_gbf ).Add_Tj (*_ef .MakeStringFromBytes (_ebc )).Add_ET ().Add_Q ();_afb .Resources =_aa .NewPdfPageResources ();_afb .Resources .SetFontByName ("\u005a\u0061\u0044\u0062",_geec .ToPdfObject ());
_afb .BBox =_ef .MakeArrayFromFloats ([]float64 {0,0,_fag ,_abfa });_afb .SetContentStream (_bfd .Bytes (),_daa ());};_bae :=_aa .NewXObjectForm ();{_egf :=_f .NewContentCreator ();if _gef .BorderSize > 0{_deaf (_egf ,_gef ,_eac ,_cfda );};_bae .BBox =_ef .MakeArrayFromFloats ([]float64 {0,0,_fag ,_abfa });
_bae .SetContentStream (_egf .Bytes (),_daa ());};_abec :=_ef .MakeDict ();_abec .Set ("\u004f\u0066\u0066",_bae .ToPdfObject ());_abec .Set ("\u0059\u0065\u0073",_afb .ToPdfObject ());_bedb :=_ef .MakeDict ();_bedb .Set ("\u004e",_abec );return _bedb ,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 *_aa .PdfPage ,name string ,rect []float64 ,opt CheckboxFieldOptions )(*_aa .PdfFieldButton ,error ){if page ==nil {return nil ,_c .New ("\u0070a\u0067e\u0020\u006e\u006f\u0074\u0020s\u0070\u0065c\u0069\u0066\u0069\u0065\u0064");
};if len (name )<=0{return nil ,_c .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 ,_c .New ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0072\u0061\u006e\u0067\u0065");
};_eab ,_bff :=_aa .NewStandard14Font (_aa .ZapfDingbatsName );if _bff !=nil {return nil ,_bff ;};_decb :=_aa .NewPdfField ();_cfgbb :=&_aa .PdfFieldButton {};_decb .SetContext (_cfgbb );_cfgbb .PdfField =_decb ;_cfgbb .T =_ef .MakeString (name );_cfgbb .SetType (_aa .ButtonTypeCheckbox );
_cfbg :="\u004f\u0066\u0066";if opt .Checked {_cfbg ="\u0059\u0065\u0073";};_cfgbb .V =_ef .MakeName (_cfbg );_bde :=_aa .NewPdfAnnotationWidget ();_bde .Rect =_ef .MakeArrayFromFloats (rect );_bde .P =page .ToPdfObject ();_bde .F =_ef .MakeInteger (4);
_bde .Parent =_cfgbb .ToPdfObject ();_dcdac :=rect [2]-rect [0];_bda :=rect [3]-rect [1];var _fbba _g .Buffer ;_fbba .WriteString ("\u0071\u000a");_fbba .WriteString ("\u0030 \u0030\u0020\u0031\u0020\u0072\u0067\n");_fbba .WriteString ("\u0042\u0054\u000a");
_fbba .WriteString ("\u002f\u005a\u0061D\u0062\u0020\u0031\u0032\u0020\u0054\u0066\u000a");_fbba .WriteString ("\u0045\u0054\u000a");_fbba .WriteString ("\u0051\u000a");_adgd :=_f .NewContentCreator ();_adgd .Add_q ();_adgd .Add_rg (0,0,1);_adgd .Add_BT ();
_adgd .Add_Tf (*_ef .MakeName ("\u005a\u0061\u0044\u0062"),12);_adgd .Add_Td (0,0);_adgd .Add_ET ();_adgd .Add_Q ();_bafgc :=_aa .NewXObjectForm ();_bafgc .SetContentStream (_adgd .Bytes (),_ef .NewRawEncoder ());_bafgc .BBox =_ef .MakeArrayFromFloats ([]float64 {0,0,_dcdac ,_bda });
_bafgc .Resources =_aa .NewPdfPageResources ();_bafgc .Resources .SetFontByName ("\u005a\u0061\u0044\u0062",_eab .ToPdfObject ());_adgd =_f .NewContentCreator ();_adgd .Add_q ();_adgd .Add_re (0,0,_dcdac ,_bda );_adgd .Add_W ().Add_n ();_adgd .Add_rg (0,0,1);
_adgd .Translate (0,3.0);_adgd .Add_BT ();_adgd .Add_Tf (*_ef .MakeName ("\u005a\u0061\u0044\u0062"),12);_adgd .Add_Td (0,0);_adgd .Add_Tj (*_ef .MakeString ("\u0034"));_adgd .Add_ET ();_adgd .Add_Q ();_aead :=_aa .NewXObjectForm ();_aead .SetContentStream (_adgd .Bytes (),_ef .NewRawEncoder ());
_aead .BBox =_ef .MakeArrayFromFloats ([]float64 {0,0,_dcdac ,_bda });_aead .Resources =_aa .NewPdfPageResources ();_aead .Resources .SetFontByName ("\u005a\u0061\u0044\u0062",_eab .ToPdfObject ());_ace :=_ef .MakeDict ();_ace .Set ("\u004f\u0066\u0066",_bafgc .ToPdfObject ());
_ace .Set ("\u0059\u0065\u0073",_aead .ToPdfObject ());_aag :=_ef .MakeDict ();_aag .Set ("\u004e",_ace );_bde .AP =_aag ;_bde .AS =_ef .MakeName (_cfbg );_cfgbb .Annotations =append (_cfgbb .Annotations ,_bde );return _cfgbb ,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 *_aa .PdfColorDeviceRGB ;Opacity float64 ;LineWidth float64 ;LineEndingStyle1 _gad .LineEndingStyle ;LineEndingStyle2 _gad .LineEndingStyle ;};

// SetStyle applies appearance `style` to `fa`.
func (_ca *FieldAppearance )SetStyle (style AppearanceStyle ){_ca ._eb =&style };

// SignatureLine represents a line of information in the signature field appearance.
type SignatureLine struct{Desc string ;Text string ;};const (_db quadding =0;_ccg quadding =1;_gcb quadding =2;);func (_dgcd *AppearanceStyle )applyAppearanceCharacteristics (_dcda *_ef .PdfObjectDictionary ,_fcf *_ef .PdfObjectDictionary ,_edef *_aa .PdfFont )error {if !_dgcd .AllowMK {return nil ;
};if CA ,_fdf :=_ef .GetString (_dcda .Get ("\u0043\u0041"));_fdf &&_edef !=nil {_fga :=CA .Bytes ();if len (_fga )!=0{_dec :=[]rune (_edef .Encoder ().Decode (_fga ));if len (_dec )==1{_dgcd .CheckmarkRune =_dec [0];};};};if BC ,_fdfg :=_ef .GetArray (_dcda .Get ("\u0042\u0043"));
_fdfg {_ega ,_fad :=BC .ToFloat64Array ();if _fad !=nil {return _fad ;};switch len (_ega ){case 1:_dgcd .BorderColor =_aa .NewPdfColorDeviceGray (_ega [0]);case 3:_dgcd .BorderColor =_aa .NewPdfColorDeviceRGB (_ega [0],_ega [1],_ega [2]);case 4:_dgcd .BorderColor =_aa .NewPdfColorDeviceCMYK (_ega [0],_ega [1],_ega [2],_ega [3]);
default:_a .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 (_ega ));
};if _fcf !=nil {if _dbad ,_eacc :=_ef .GetNumberAsFloat (_fcf .Get ("\u0057"));_eacc ==nil {_dgcd .BorderSize =_dbad ;};};};if BG ,_ffc :=_ef .GetArray (_dcda .Get ("\u0042\u0047"));_ffc {_aea ,_gedg :=BG .ToFloat64Array ();if _gedg !=nil {return _gedg ;
};switch len (_aea ){case 1:_dgcd .FillColor =_aa .NewPdfColorDeviceGray (_aea [0]);case 3:_dgcd .FillColor =_aa .NewPdfColorDeviceRGB (_aea [0],_aea [1],_aea [2]);case 4:_dgcd .FillColor =_aa .NewPdfColorDeviceCMYK (_aea [0],_aea [1],_aea [2],_aea [3]);
default:_a .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 (_aea ));
};};return 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 *_aa .PdfPage ,name string ,rect []float64 ,opt TextFieldOptions )(*_aa .PdfFieldText ,error ){if page ==nil {return nil ,_c .New ("\u0070a\u0067e\u0020\u006e\u006f\u0074\u0020s\u0070\u0065c\u0069\u0066\u0069\u0065\u0064");};if len (name )<=0{return nil ,_c .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 ,_c .New ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0072\u0061\u006e\u0067\u0065");};_dgca :=_aa .NewPdfField ();_aaefc :=&_aa .PdfFieldText {};_dgca .SetContext (_aaefc );_aaefc .PdfField =_dgca ;_aaefc .T =_ef .MakeString (name );
if opt .MaxLen > 0{_aaefc .MaxLen =_ef .MakeInteger (int64 (opt .MaxLen ));};if len (opt .Value )> 0{_aaefc .V =_ef .MakeString (opt .Value );};_gcf :=_aa .NewPdfAnnotationWidget ();_gcf .Rect =_ef .MakeArrayFromFloats (rect );_gcf .P =page .ToPdfObject ();
_gcf .F =_ef .MakeInteger (4);_gcf .Parent =_aaefc .ToPdfObject ();_aaefc .Annotations =append (_aaefc .Annotations ,_gcf );return _aaefc ,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 _aa .PdfColor ;FillColor _aa .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 ;};

// CreateCircleAnnotation creates a circle/ellipse annotation object with appearance stream that can be added to
// page PDF annotations.
func CreateCircleAnnotation (circDef CircleAnnotationDef )(*_aa .PdfAnnotation ,error ){_ge :=_aa .NewPdfAnnotationCircle ();if circDef .BorderEnabled {_ag ,_ac ,_ff :=circDef .BorderColor .R (),circDef .BorderColor .G (),circDef .BorderColor .B ();_ge .C =_ef .MakeArrayFromFloats ([]float64 {_ag ,_ac ,_ff });
_dg :=_aa .NewBorderStyle ();_dg .SetBorderWidth (circDef .BorderWidth );_ge .BS =_dg .ToPdfObject ();};if circDef .FillEnabled {_da ,_cg ,_gg :=circDef .FillColor .R (),circDef .FillColor .G (),circDef .FillColor .B ();_ge .IC =_ef .MakeArrayFromFloats ([]float64 {_da ,_cg ,_gg });
}else {_ge .IC =_ef .MakeArrayFromIntegers ([]int {});};if circDef .Opacity < 1.0{_ge .CA =_ef .MakeFloat (circDef .Opacity );};_dea ,_gf ,_cc :=_gaa (circDef );if _cc !=nil {return nil ,_cc ;};_ge .AP =_dea ;_ge .Rect =_ef .MakeArrayFromFloats ([]float64 {_gf .Llx ,_gf .Lly ,_gf .Urx ,_gf .Ury });
return _ge .PdfAnnotation ,nil ;};

// 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 ;};

// 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 ;

// 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) specify a valid font.
// If no fallback font is provided, setting this field has no effect.
ForceReplace bool ;};

// Style returns the appearance style of `fa`. If not specified, returns default style.
func (_b FieldAppearance )Style ()AppearanceStyle {if _b ._eb !=nil {return *_b ._eb ;};return AppearanceStyle {AutoFontSizeFraction :0.65,CheckmarkRune :'✔',BorderSize :0.0,BorderColor :_aa .NewPdfColorDeviceGray (0),FillColor :_aa .NewPdfColorDeviceGray (1),MultilineLineHeight :1.2,MultilineVAlignMiddle :false ,DrawAlignmentReticle :false ,AllowMK :true };
};func _gc (_aae CircleAnnotationDef ,_fg string )([]byte ,*_aa .PdfRectangle ,*_aa .PdfRectangle ,error ){_ad :=_gad .Circle {X :_aae .X ,Y :_aae .Y ,Width :_aae .Width ,Height :_aae .Height ,FillEnabled :_aae .FillEnabled ,FillColor :_aae .FillColor ,BorderEnabled :_aae .BorderEnabled ,BorderWidth :_aae .BorderWidth ,BorderColor :_aae .BorderColor ,Opacity :_aae .Opacity };
_ee ,_ccc ,_gdf :=_ad .Draw (_fg );if _gdf !=nil {return nil ,nil ,nil ,_gdf ;};_deab :=&_aa .PdfRectangle {};_deab .Llx =_aae .X +_ccc .Llx ;_deab .Lly =_aae .Y +_ccc .Lly ;_deab .Urx =_aae .X +_ccc .Urx ;_deab .Ury =_aae .Y +_ccc .Ury ;return _ee ,_ccc ,_deab ,nil ;
};

// GenerateAppearanceDict generates an appearance dictionary for widget annotation `wa` for the `field` in `form`.
// Implements interface model.FieldAppearanceGenerator.
func (_eef FieldAppearance )GenerateAppearanceDict (form *_aa .PdfAcroForm ,field *_aa .PdfField ,wa *_aa .PdfAnnotationWidget )(*_ef .PdfObjectDictionary ,error ){_a .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 );
_ ,_gdc :=field .GetContext ().(*_aa .PdfFieldText );_eg ,_eeb :=_ef .GetDict (wa .AP );if _eeb &&_eef .OnlyIfMissing &&(!_gdc ||!_eef .RegenerateTextFields ){_a .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 _eg ,nil ;};if form .DR ==nil {form .DR =_aa .NewPdfPageResources ();};switch _ffg :=field .GetContext ().(type ){case *_aa .PdfFieldText :_af :=_ffg ;switch {case _af .Flags ().Has (_aa .FieldFlagPassword ):return nil ,nil ;case _af .Flags ().Has (_aa .FieldFlagFileSelect ):return nil ,nil ;
case _af .Flags ().Has (_aa .FieldFlagComb ):if _af .MaxLen !=nil {_bg ,_bga :=_agg (wa ,_af ,form .DR ,_eef .Style ());if _bga !=nil {return nil ,_bga ;};return _bg ,nil ;};};_dfg ,_dgd :=_ae (wa ,_af ,form .DR ,_eef .Style ());if _dgd !=nil {return nil ,_dgd ;
};return _dfg ,nil ;case *_aa .PdfFieldButton :_dd :=_ffg ;if _dd .IsCheckbox (){_age ,_be :=_efc (wa ,_dd ,form .DR ,_eef .Style ());if _be !=nil {return nil ,_be ;};return _age ,nil ;};_a .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",_dd .GetType ());
case *_aa .PdfFieldChoice :_eec :=_ffg ;switch {case _eec .Flags ().Has (_aa .FieldFlagCombo ):_dgb ,_cb :=_gbeg (form ,wa ,_eec ,_eef .Style ());if _cb !=nil {return nil ,_cb ;};return _dgb ,nil ;default:_a .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",_eec .Flags ().String ());
};default:_a .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",_ffg );};return nil ,nil ;};func _gbeg (_edgc *_aa .PdfAcroForm ,_cab *_aa .PdfAnnotationWidget ,_gfg *_aa .PdfFieldChoice ,_daeb AppearanceStyle )(*_ef .PdfObjectDictionary ,error ){_cff ,_gfge :=_ef .GetArray (_cab .Rect );
if !_gfge {return nil ,_c .New ("\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0052\u0065\u0063\u0074");};_edda ,_edc :=_aa .NewPdfRectangle (*_cff );if _edc !=nil {return nil ,_edc ;};_gbef ,_aga :=_edda .Width (),_edda .Height ();_a .Log .Debug ("\u0043\u0068\u006f\u0069\u0063\u0065\u002c\u0020\u0077\u0061\u0020\u0042S\u003a\u0020\u0025\u0076",_cab .BS );
_gcaf ,_edc :=_f .NewContentStreamParser (_cde (_gfg .PdfField )).Parse ();if _edc !=nil {return nil ,_edc ;};_dbab ,_fdbg :=_ef .GetDict (_cab .MK );if _fdbg {_adf ,_ :=_ef .GetDict (_cab .BS );_bafg :=_daeb .applyAppearanceCharacteristics (_dbab ,_adf ,nil );
if _bafg !=nil {return nil ,_bafg ;};};_dcc :=_ef .MakeDict ();for _ ,_afba :=range _gfg .Opt .Elements (){if _bfa ,_aggf :=_ef .GetArray (_afba );_aggf &&_bfa .Len ()==2{_afba =_bfa .Get (1);};var _fdg string ;if _abg ,_cdc :=_ef .GetString (_afba );_cdc {_fdg =_abg .Decoded ();
}else if _agcc ,_egff :=_ef .GetName (_afba );_egff {_fdg =_agcc .String ();}else {_a .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",_afba );
return nil ,_c .New ("\u006e\u006f\u0074\u0020\u0061\u0020\u006e\u0061\u006d\u0065\u002f\u0073t\u0072\u0069\u006e\u0067");};if len (_fdg )> 0{_fgeg ,_afg :=_cdg (_gfg .PdfField ,_gbef ,_aga ,_fdg ,_daeb ,_gcaf ,_edgc .DR ,_dbab );if _afg !=nil {return nil ,_afg ;
};_dcc .Set (*_ef .MakeName (_fdg ),_fgeg .ToPdfObject ());};};_cec :=_ef .MakeDict ();_cec .Set ("\u004e",_dcc );return _cec ,nil ;};type quadding int ;

// TextFieldOptions defines optional parameter for a text field in a form.
type TextFieldOptions struct{MaxLen int ;Value string ;};func _agg (_fde *_aa .PdfAnnotationWidget ,_eedgf *_aa .PdfFieldText ,_afa *_aa .PdfPageResources ,_ddc AppearanceStyle )(*_ef .PdfObjectDictionary ,error ){_dcg :=_aa .NewPdfPageResources ();_fcg ,_gee :=_ef .GetArray (_fde .Rect );
if !_gee {return nil ,_c .New ("\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0052\u0065\u0063\u0074");};_cda ,_acc :=_aa .NewPdfRectangle (*_fcg );if _acc !=nil {return nil ,_acc ;};_dcb ,_dgbc :=_cda .Width (),_cda .Height ();_bec ,_abf :=_dcb ,_dgbc ;
_gfcb ,_dab :=_ef .GetDict (_fde .MK );if _dab {_fbc ,_ :=_ef .GetDict (_fde .BS );_cfd :=_ddc .applyAppearanceCharacteristics (_gfcb ,_fbc ,nil );if _cfd !=nil {return nil ,_cfd ;};};_cce ,_dab :=_ef .GetIntVal (_eedgf .MaxLen );if !_dab {return nil ,_c .New ("\u006d\u0061\u0078\u006c\u0065\u006e\u0020\u006e\u006ft\u0020\u0073\u0065\u0074");
};if _cce <=0{return nil ,_c .New ("\u006d\u0061\u0078\u004c\u0065\u006e\u0020\u0069\u006ev\u0061\u006c\u0069\u0064");};_dca :=_dcb /float64 (_cce );_gcc ,_acc :=_f .NewContentStreamParser (_cde (_eedgf .PdfField )).Parse ();if _acc !=nil {return nil ,_acc ;
};_agc :=_f .NewContentCreator ();if _ddc .BorderSize > 0{_deaf (_agc ,_ddc ,_dcb ,_dgbc );};if _ddc .DrawAlignmentReticle {_bed :=_ddc ;_bed .BorderSize =0.2;_aca (_agc ,_bed ,_dcb ,_dgbc );};_agc .Add_BMC ("\u0054\u0078");_agc .Add_q ();_ ,_dgbc =_ddc .applyRotation (_gfcb ,_dcb ,_dgbc ,_agc );
_agc .Add_BT ();_cgde ,_fa ,_acc :=_ddc .processDA (_eedgf .PdfField ,_gcc ,_afa ,_dcg ,_agc );if _acc !=nil {return nil ,_acc ;};_cggc :=_cgde .Font ;_faf :=_ef .MakeName (_cgde .Name );_egb :=_cgde .Size ;_dgfg :=_egb ==0;if _dgfg &&_fa {_egb =_dgbc *_ddc .AutoFontSizeFraction ;
};_ebf :=_cggc .Encoder ();if _ebf ==nil {_a .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");
_ebf =_ab .NewIdentityTextEncoder ("\u0049\u0064\u0065\u006e\u0074\u0069\u0074\u0079\u002d\u0048");};var _gda string ;if _bdc ,_daf :=_ef .GetString (_eedgf .V );_daf {_gda =_bdc .Decoded ();};_agc .Add_Tf (*_faf ,_egb );var _cbg float64 ;for _ ,_bfe :=range _gda {_adb ,_bbf :=_cggc .GetRuneMetrics (_bfe );
if !_bbf {_a .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",_bfe );
continue ;};_edac :=_adb .Wy ;if int (_edac )<=0{_edac =_adb .Wx ;};if _edac > _cbg {_cbg =_edac ;};};if int (_cbg )==0{_a .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");
_cbg =1000;};_bcf ,_acc :=_cggc .GetFontDescriptor ();if _acc !=nil {_a .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 _eca float64 ;if _bcf !=nil {_eca ,_acc =_bcf .GetCapHeight ();if _acc !=nil {_a .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",_acc );
};};if int (_eca )<=0{_a .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");
_eca =1000.0;};_eeg :=_eca /1000.0*_egb ;_ggcc :=0.0;_dga :=1.0*_egb *(_cbg /1000.0);{_gedf :=_dga ;if _dgfg &&_ggcc +_gedf > _dgbc {_egb =0.95*(_dgbc -_ggcc );_eeg =_eca /1000.0*_egb ;};if _dgbc > _eeg {_ggcc =(_dgbc -_eeg )/2.0;};};_agc .Add_Td (0,_ggcc );
if _edd ,_gdg :=_ef .GetIntVal (_eedgf .Q );_gdg {switch _edd {case 2:if len (_gda )< _cce {_dba :=float64 (_cce -len (_gda ))*_dca ;_agc .Add_Td (_dba ,0);};};};for _bgc ,_eff :=range _gda {_fae :=2.0;_aabf :=string (_eff );if _ebf !=nil {_ddfb ,_aaef :=_cggc .GetRuneMetrics (_eff );
if !_aaef {_a .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",_eff );
continue ;};_aabf =string (_ebf .Encode (_aabf ));_dgc :=_egb *_ddfb .Wx /1000.0;_ade :=(_dca -_dgc )/2;_fae =_ade ;};_agc .Add_Td (_fae ,0);_agc .Add_Tj (*_ef .MakeString (_aabf ));if _bgc !=len (_gda )-1{_agc .Add_Td (_dca -_fae ,0);};};_agc .Add_ET ();
_agc .Add_Q ();_agc .Add_EMC ();_fcb :=_aa .NewXObjectForm ();_fcb .Resources =_dcg ;_fcb .BBox =_ef .MakeArrayFromFloats ([]float64 {0,0,_bec ,_abf });_fcb .SetContentStream (_agc .Bytes (),_daa ());_gde :=_ef .MakeDict ();_gde .Set ("\u004e",_fcb .ToPdfObject ());
return _gde ,nil ;};func (_fgd *AppearanceStyle )applyRotation (_dbe *_ef .PdfObjectDictionary ,_gdcf ,_deb float64 ,_afbc *_f .ContentCreator )(float64 ,float64 ){if !_fgd .AllowMK {return _gdcf ,_deb ;};if _dbe ==nil {return _gdcf ,_deb ;};_fbb ,_ :=_ef .GetNumberAsFloat (_dbe .Get ("\u0052"));
if _fbb ==0{return _gdcf ,_deb ;};_cef :=-_fbb ;_dggd :=_gad .Path {Points :[]_gad .Point {_gad .NewPoint (0,0).Rotate (_cef ),_gad .NewPoint (_gdcf ,0).Rotate (_cef ),_gad .NewPoint (0,_deb ).Rotate (_cef ),_gad .NewPoint (_gdcf ,_deb ).Rotate (_cef )}}.GetBoundingBox ();
_afbc .RotateDeg (_fbb );_afbc .Translate (_dggd .X ,_dggd .Y );return _dggd .Width ,_dggd .Height ;};

// 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 ;

// 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 *_aa .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 _aa .PdfColor ;

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

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

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

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

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

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

// ImagePosition specifies the image location relative to the text signature.
ImagePosition SignatureImagePosition ;};

// 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 };};func _dbadg (_bafc RectangleAnnotationDef )(*_ef .PdfObjectDictionary ,*_aa .PdfRectangle ,error ){_cggf :=_aa .NewXObjectForm ();_cggf .Resources =_aa .NewPdfPageResources ();
_dggg :="";if _bafc .Opacity < 1.0{_ccfa :=_ef .MakeDict ();_ccfa .Set ("\u0063\u0061",_ef .MakeFloat (_bafc .Opacity ));_ccfa .Set ("\u0043\u0041",_ef .MakeFloat (_bafc .Opacity ));_dfgd :=_cggf .Resources .AddExtGState ("\u0067\u0073\u0031",_ccfa );if _dfgd !=nil {_a .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 ,_dfgd ;};_dggg ="\u0067\u0073\u0031";};_ffcg ,_fdag ,_agea ,_ffa :=_gbedg (_bafc ,_dggg );if _ffa !=nil {return nil ,nil ,_ffa ;};_ffa =_cggf .SetContentStream (_ffcg ,nil );if _ffa !=nil {return nil ,nil ,_ffa ;};_cggf .BBox =_fdag .ToPdfObject ();
_bgbf :=_ef .MakeDict ();_bgbf .Set ("\u004e",_cggf .ToPdfObject ());return _bgbf ,_agea ,nil ;};func _aca (_afd *_f .ContentCreator ,_gff AppearanceStyle ,_bgce ,_bedbc float64 ){_afd .Add_q ().Add_re (0,0,_bgce ,_bedbc ).Add_re (0,_bedbc /2,_bgce ,_bedbc /2).Add_re (0,0,_bgce ,_bedbc ).Add_re (_bgce /2,0,_bgce /2,_bedbc ).Add_w (_gff .BorderSize ).SetStrokingColor (_gff .BorderColor ).SetNonStrokingColor (_gff .FillColor ).Add_B ().Add_Q ();
};

// 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 *_aa .PdfFont ;

// Size represents the size of the font used for the field appearance.
// If size is 0, a default font size will be used.
// The default font size is calculated using the available annotation
// height and the AutoFontSizeFraction of the AppearanceStyle.
Size float64 ;};

// CheckboxFieldOptions defines optional parameters for a checkbox field a form.
type CheckboxFieldOptions struct{Checked bool ;};func _daa ()_ef .StreamEncoder {return _ef .NewFlateEncoder ()};

// CreateLineAnnotation creates a line annotation object that can be added to page PDF annotations.
func CreateLineAnnotation (lineDef LineAnnotationDef )(*_aa .PdfAnnotation ,error ){_aecb :=_aa .NewPdfAnnotationLine ();_aecb .L =_ef .MakeArrayFromFloats ([]float64 {lineDef .X1 ,lineDef .Y1 ,lineDef .X2 ,lineDef .Y2 });_bbea :=_ef .MakeName ("\u004e\u006f\u006e\u0065");
if lineDef .LineEndingStyle1 ==_gad .LineEndingStyleArrow {_bbea =_ef .MakeName ("C\u006c\u006f\u0073\u0065\u0064\u0041\u0072\u0072\u006f\u0077");};_ccfb :=_ef .MakeName ("\u004e\u006f\u006e\u0065");if lineDef .LineEndingStyle2 ==_gad .LineEndingStyleArrow {_ccfb =_ef .MakeName ("C\u006c\u006f\u0073\u0065\u0064\u0041\u0072\u0072\u006f\u0077");
};_aecb .LE =_ef .MakeArray (_bbea ,_ccfb );if lineDef .Opacity < 1.0{_aecb .CA =_ef .MakeFloat (lineDef .Opacity );};_egda ,_dfd ,_fefb :=lineDef .LineColor .R (),lineDef .LineColor .G (),lineDef .LineColor .B ();_aecb .IC =_ef .MakeArrayFromFloats ([]float64 {_egda ,_dfd ,_fefb });
_aecb .C =_ef .MakeArrayFromFloats ([]float64 {_egda ,_dfd ,_fefb });_bbg :=_aa .NewBorderStyle ();_bbg .SetBorderWidth (lineDef .LineWidth );_aecb .BS =_bbg .ToPdfObject ();_cfba ,_gag ,_bgb :=_fbdd (lineDef );if _bgb !=nil {return nil ,_bgb ;};_aecb .AP =_cfba ;
_aecb .Rect =_ef .MakeArrayFromFloats ([]float64 {_gag .Llx ,_gag .Lly ,_gag .Urx ,_gag .Ury });return _aecb .PdfAnnotation ,nil ;};const (SignatureImageLeft SignatureImagePosition =iota ;SignatureImageRight ;SignatureImageTop ;SignatureImageBottom ;);
func _ggf (_daae LineAnnotationDef ,_cfeg string )([]byte ,*_aa .PdfRectangle ,*_aa .PdfRectangle ,error ){_agfg :=_gad .Line {X1 :0,Y1 :0,X2 :_daae .X2 -_daae .X1 ,Y2 :_daae .Y2 -_daae .Y1 ,LineColor :_daae .LineColor ,Opacity :_daae .Opacity ,LineWidth :_daae .LineWidth ,LineEndingStyle1 :_daae .LineEndingStyle1 ,LineEndingStyle2 :_daae .LineEndingStyle2 };
_agdf ,_daefe ,_bbgf :=_agfg .Draw (_cfeg );if _bbgf !=nil {return nil ,nil ,nil ,_bbgf ;};_baa :=&_aa .PdfRectangle {};_baa .Llx =_daae .X1 +_daefe .Llx ;_baa .Lly =_daae .Y1 +_daefe .Lly ;_baa .Urx =_daae .X1 +_daefe .Urx ;_baa .Ury =_daae .Y1 +_daefe .Ury ;
return _agdf ,_daefe ,_baa ,nil ;};

// 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 *_aa .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_aa .PdfColorDeviceRGB ;Opacity float64 ;};

// CreateRectangleAnnotation creates a rectangle annotation object that can be added to page PDF annotations.
func CreateRectangleAnnotation (rectDef RectangleAnnotationDef )(*_aa .PdfAnnotation ,error ){_gfb :=_aa .NewPdfAnnotationSquare ();if rectDef .BorderEnabled {_ecag ,_ebfb ,_cdd :=rectDef .BorderColor .R (),rectDef .BorderColor .G (),rectDef .BorderColor .B ();
_gfb .C =_ef .MakeArrayFromFloats ([]float64 {_ecag ,_ebfb ,_cdd });_gdd :=_aa .NewBorderStyle ();_gdd .SetBorderWidth (rectDef .BorderWidth );_gfb .BS =_gdd .ToPdfObject ();};if rectDef .FillEnabled {_dcbf ,_bge ,_fcfc :=rectDef .FillColor .R (),rectDef .FillColor .G (),rectDef .FillColor .B ();
_gfb .IC =_ef .MakeArrayFromFloats ([]float64 {_dcbf ,_bge ,_fcfc });}else {_gfb .IC =_ef .MakeArrayFromIntegers ([]int {});};if rectDef .Opacity < 1.0{_gfb .CA =_ef .MakeFloat (rectDef .Opacity );};_egdc ,_feag ,_fbf :=_dbadg (rectDef );if _fbf !=nil {return nil ,_fbf ;
};_gfb .AP =_egdc ;_gfb .Rect =_ef .MakeArrayFromFloats ([]float64 {_feag .Llx ,_feag .Lly ,_feag .Urx ,_feag .Ury });return _gfb .PdfAnnotation ,nil ;};