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 (_f "bytes";_ff "errors";_e "github.com/unidoc/unipdf/v3/common";_fc "github.com/unidoc/unipdf/v3/contentstream";_fb "github.com/unidoc/unipdf/v3/contentstream/draw";_gf "github.com/unidoc/unipdf/v3/core";_gb "github.com/unidoc/unipdf/v3/internal/textencoding";
_bc "github.com/unidoc/unipdf/v3/model";_eg "image";_fd "math";_bg "strings";_b "unicode";);

// GenerateAppearanceDict generates an appearance dictionary for widget annotation `wa` for the `field` in `form`.
// Implements interface model.FieldAppearanceGenerator.
func (_eff FieldAppearance )GenerateAppearanceDict (form *_bc .PdfAcroForm ,field *_bc .PdfField ,wa *_bc .PdfAnnotationWidget )(*_gf .PdfObjectDictionary ,error ){_e .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 );
_ ,_db :=field .GetContext ().(*_bc .PdfFieldText );_fde ,_eaee :=_gf .GetDict (wa .AP );if _eaee &&_eff .OnlyIfMissing &&(!_db ||!_eff .RegenerateTextFields ){_e .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 _fde ,nil ;};if form .DR ==nil {form .DR =_bc .NewPdfPageResources ();};switch _ad :=field .GetContext ().(type ){case *_bc .PdfFieldText :_cg :=_ad ;if _fga :=_cbf (_cg .PdfField );_fga ==""{_cg .DA =form .DA ;};switch {case _cg .Flags ().Has (_bc .FieldFlagPassword ):return nil ,nil ;
case _cg .Flags ().Has (_bc .FieldFlagFileSelect ):return nil ,nil ;case _cg .Flags ().Has (_bc .FieldFlagComb ):if _cg .MaxLen !=nil {_cad ,_gag :=_fdg (wa ,_cg ,form .DR ,_eff .Style ());if _gag !=nil {return nil ,_gag ;};return _cad ,nil ;};};_dc ,_cdcb :=_gcc (wa ,_cg ,form .DR ,_eff .Style ());
if _cdcb !=nil {return nil ,_cdcb ;};return _dc ,nil ;case *_bc .PdfFieldButton :_egf :=_ad ;if _egf .IsCheckbox (){_ce ,_cf :=_fag (wa ,_egf ,form .DR ,_eff .Style ());if _cf !=nil {return nil ,_cf ;};return _ce ,nil ;};_e .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",_egf .GetType ());
case *_bc .PdfFieldChoice :_bdc :=_ad ;switch {case _bdc .Flags ().Has (_bc .FieldFlagCombo ):_ed ,_fge :=_bff (form ,wa ,_bdc ,_eff .Style ());if _fge !=nil {return nil ,_fge ;};return _ed ,nil ;default:_e .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",_bdc .Flags ().String ());
};default:_e .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",_ad );};return nil ,nil ;};

// ImageFieldOptions defines optional parameters for a push button with image attach capability form field.
type ImageFieldOptions struct{Image *_bc .Image ;_bca AppearanceStyle ;};func _fdg (_gbbe *_bc .PdfAnnotationWidget ,_cbb *_bc .PdfFieldText ,_ecd *_bc .PdfPageResources ,_gagb AppearanceStyle )(*_gf .PdfObjectDictionary ,error ){_eege :=_bc .NewPdfPageResources ();
_fac ,_fgbc :=_gf .GetArray (_gbbe .Rect );if !_fgbc {return nil ,_ff .New ("\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0052\u0065\u0063\u0074");};_bgb ,_geb :=_bc .NewPdfRectangle (*_fac );if _geb !=nil {return nil ,_geb ;};_bfd ,_gcd :=_bgb .Width (),_bgb .Height ();
_afa ,_ada :=_bfd ,_gcd ;_aec ,_gede :=_gf .GetDict (_gbbe .MK );if _gede {_ceb ,_ :=_gf .GetDict (_gbbe .BS );_facd :=_gagb .applyAppearanceCharacteristics (_aec ,_ceb ,nil );if _facd !=nil {return nil ,_facd ;};};_bfce ,_gede :=_gf .GetIntVal (_cbb .MaxLen );
if !_gede {return nil ,_ff .New ("\u006d\u0061\u0078\u006c\u0065\u006e\u0020\u006e\u006ft\u0020\u0073\u0065\u0074");};if _bfce <=0{return nil ,_ff .New ("\u006d\u0061\u0078\u004c\u0065\u006e\u0020\u0069\u006ev\u0061\u006c\u0069\u0064");};_dfdb :=_bfd /float64 (_bfce );
_eba ,_geb :=_fc .NewContentStreamParser (_cbf (_cbb .PdfField )).Parse ();if _geb !=nil {return nil ,_geb ;};_gac :=_fc .NewContentCreator ();if _gagb .BorderSize > 0{_cccf (_gac ,_gagb ,_bfd ,_gcd );};if _gagb .DrawAlignmentReticle {_fcd :=_gagb ;_fcd .BorderSize =0.2;
_afcf (_gac ,_fcd ,_bfd ,_gcd );};_gac .Add_BMC ("\u0054\u0078");_gac .Add_q ();_ ,_gcd =_gagb .applyRotation (_aec ,_bfd ,_gcd ,_gac );_gac .Add_BT ();_ebe ,_bbc ,_geb :=_gagb .processDA (_cbb .PdfField ,_eba ,_ecd ,_eege ,_gac );if _geb !=nil {return nil ,_geb ;
};_agd :=_ebe .Font ;_afda :=_gf .MakeName (_ebe .Name );_fggd :=_ebe .Size ;_gda :=_fggd ==0;if _gda &&_bbc {_fggd =_gcd *_gagb .AutoFontSizeFraction ;};_bdaa :=_agd .Encoder ();if _bdaa ==nil {_e .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");
_bdaa =_gb .NewIdentityTextEncoder ("\u0049\u0064\u0065\u006e\u0074\u0069\u0074\u0079\u002d\u0048");};var _ace string ;if _cgf ,_bfgc :=_gf .GetString (_cbb .V );_bfgc {_ace =_cgf .Decoded ();};_gac .Add_Tf (*_afda ,_fggd );var _gbc float64 ;for _ ,_ega :=range _ace {_fbea ,_fed :=_agd .GetRuneMetrics (_ega );
if !_fed {_e .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",_ega );
continue ;};_agc :=_fbea .Wy ;if int (_agc )<=0{_agc =_fbea .Wx ;};if _agc > _gbc {_gbc =_agc ;};};if int (_gbc )==0{_e .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");
_gbc =1000;};_bfeg ,_geb :=_agd .GetFontDescriptor ();if _geb !=nil {_e .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 _edec float64 ;if _bfeg !=nil {_edec ,_geb =_bfeg .GetCapHeight ();if _geb !=nil {_e .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",_geb );
};};if int (_edec )<=0{_e .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");
_edec =1000.0;};_bea :=_edec /1000.0*_fggd ;_dgcg :=0.0;_gga :=1.0*_fggd *(_gbc /1000.0);{_dfg :=_gga ;if _gda &&_dgcg +_dfg > _gcd {_fggd =0.95*(_gcd -_dgcg );_bea =_edec /1000.0*_fggd ;};if _gcd > _bea {_dgcg =(_gcd -_bea )/2.0;};};_gac .Add_Td (0,_dgcg );
if _ddf ,_addb :=_gf .GetIntVal (_cbb .Q );_addb {switch _ddf {case 2:if len (_ace )< _bfce {_adee :=float64 (_bfce -len (_ace ))*_dfdb ;_gac .Add_Td (_adee ,0);};};};for _aae ,_aag :=range _ace {_de :=_eaf ;if _gagb .MarginLeft !=nil {_de =*_gagb .MarginLeft ;
};_gaa :=string (_aag );if _bdaa !=nil {_cea ,_gad :=_agd .GetRuneMetrics (_aag );if !_gad {_e .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",_aag );
continue ;};_gaa =string (_bdaa .Encode (_gaa ));_gbde :=_fggd *_cea .Wx /1000.0;_cca :=(_dfdb -_gbde )/2;_de =_cca ;};_gac .Add_Td (_de ,0);_gac .Add_Tj (*_gf .MakeString (_gaa ));if _aae !=len (_ace )-1{_gac .Add_Td (_dfdb -_de ,0);};};_gac .Add_ET ();
_gac .Add_Q ();_gac .Add_EMC ();_cdf :=_bc .NewXObjectForm ();_cdf .Resources =_eege ;_cdf .BBox =_gf .MakeArrayFromFloats ([]float64 {0,0,_afa ,_ada });_cdf .SetContentStream (_gac .Bytes (),_aga ());_bcd :=_gf .MakeDict ();_bcd .Set ("\u004e",_cdf .ToPdfObject ());
return _bcd ,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 *_bc .PdfPage ,name string ,rect []float64 ,opt ImageFieldOptions )(*_bc .PdfFieldButton ,error ){if page ==nil {return nil ,_ff .New ("\u0070a\u0067e\u0020\u006e\u006f\u0074\u0020s\u0070\u0065c\u0069\u0066\u0069\u0065\u0064");
};if len (name )<=0{return nil ,_ff .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 ,_ff .New ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0072\u0061\u006e\u0067\u0065");
};_fdac :=_bc .NewPdfField ();_edgac :=&_bc .PdfFieldButton {};_edgac .PdfField =_fdac ;_fdac .SetContext (_edgac );_edgac .SetType (_bc .ButtonTypePush );_edgac .T =_gf .MakeString (name );_acec :=_bc .NewPdfAnnotationWidget ();_acec .Rect =_gf .MakeArrayFromFloats (rect );
_acec .P =page .ToPdfObject ();_acec .F =_gf .MakeInteger (4);_acec .Parent =_edgac .ToPdfObject ();_bcde :=rect [2]-rect [0];_bdfd :=rect [3]-rect [1];_fcba :=opt ._bca ;_cfa :=_fc .NewContentCreator ();if _fcba .BorderSize > 0{_cccf (_cfa ,_fcba ,_bcde ,_bdfd );
};if _fcba .DrawAlignmentReticle {_cgb :=_fcba ;_cgb .BorderSize =0.2;_afcf (_cfa ,_cgb ,_bcde ,_bdfd );};_abfbg ,_aaagc :=_dabg (_bcde ,_bdfd ,opt .Image ,_fcba );if _aaagc !=nil {return nil ,_aaagc ;};_ccfg ,_aede :=_gf .GetDict (_acec .MK );if _aede {_ccfg .Set ("\u006c",_abfbg .ToPdfObject ());
};_ecbc :=_gf .MakeDict ();_ecbc .Set ("\u0046\u0052\u004d",_abfbg .ToPdfObject ());_dcdd :=_bc .NewPdfPageResources ();_dcdd .ProcSet =_gf .MakeArray (_gf .MakeName ("\u0050\u0044\u0046"));_dcdd .XObject =_ecbc ;_fgbca :=_bcde -2;_cagc :=_bdfd -2;_cfa .Add_q ();
_cfa .Add_re (1,1,_fgbca ,_cagc );_cfa .Add_W ();_cfa .Add_n ();_fgbca -=2;_cagc -=2;_cfa .Add_q ();_cfa .Add_re (2,2,_fgbca ,_cagc );_cfa .Add_W ();_cfa .Add_n ();_fec :=_fd .Min (_fgbca /float64 (opt .Image .Width ),_cagc /float64 (opt .Image .Height ));
_cfa .Add_cm (_fec ,0,0,_fec ,(_bcde /2)-(float64 (opt .Image .Width )*_fec /2)+2,2);_cfa .Add_Do ("\u0046\u0052\u004d");_cfa .Add_Q ();_cfa .Add_Q ();_afdd :=_bc .NewXObjectForm ();_afdd .FormType =_gf .MakeInteger (1);_afdd .Resources =_dcdd ;_afdd .BBox =_gf .MakeArrayFromFloats ([]float64 {0,0,_bcde ,_bdfd });
_afdd .Matrix =_gf .MakeArrayFromFloats ([]float64 {1.0,0.0,0.0,1.0,0.0,0.0});_afdd .SetContentStream (_cfa .Bytes (),_aga ());_eadg :=_gf .MakeDict ();_eadg .Set ("\u004e",_afdd .ToPdfObject ());_acec .AP =_eadg ;_edgac .Annotations =append (_edgac .Annotations ,_acec );
return _edgac ,nil ;};func _dabg (_daee ,_agef float64 ,_dcgc *_bc .Image ,_ceef AppearanceStyle )(*_bc .XObjectForm ,error ){_aaed ,_eca :=_bc .NewXObjectImageFromImage (_dcgc ,nil ,_gf .NewFlateEncoder ());if _eca !=nil {return nil ,_eca ;};_aaed .Decode =_gf .MakeArrayFromFloats ([]float64 {0.0,1.0,0.0,1.0,0.0,1.0});
_bdag :=_bc .NewPdfPageResources ();_bdag .ProcSet =_gf .MakeArray (_gf .MakeName ("\u0050\u0044\u0046"),_gf .MakeName ("\u0049\u006d\u0061\u0067\u0065\u0043"));_bdag .SetXObjectImageByName (_gf .PdfObjectName ("\u0049\u006d\u0030"),_aaed );_abca :=_fc .NewContentCreator ();
_abca .Add_q ();_abca .Add_cm (float64 (_dcgc .Width ),0,0,float64 (_dcgc .Height ),0,0);_abca .Add_Do ("\u0049\u006d\u0030");_abca .Add_Q ();_egfa :=_bc .NewXObjectForm ();_egfa .FormType =_gf .MakeInteger (1);_egfa .BBox =_gf .MakeArrayFromFloats ([]float64 {0,0,float64 (_dcgc .Width ),float64 (_dcgc .Height )});
_egfa .Resources =_bdag ;_egfa .SetContentStream (_abca .Bytes (),_aga ());return _egfa ,nil ;};func _gcc (_ae *_bc .PdfAnnotationWidget ,_cec *_bc .PdfFieldText ,_bfe *_bc .PdfPageResources ,_aac AppearanceStyle )(*_gf .PdfObjectDictionary ,error ){_ffg :=_bc .NewPdfPageResources ();
_bdf ,_ac :=_gf .GetArray (_ae .Rect );if !_ac {return nil ,_ff .New ("\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0052\u0065\u0063\u0074");};_fgca ,_acf :=_bc .NewPdfRectangle (*_bdf );if _acf !=nil {return nil ,_acf ;};_cef ,_gbf :=_fgca .Width (),_fgca .Height ();
_be ,_gbd :=_cef ,_gbf ;_dag ,_bad :=_gf .GetDict (_ae .MK );if _bad {_ccc ,_ :=_gf .GetDict (_ae .BS );_gfd :=_aac .applyAppearanceCharacteristics (_dag ,_ccc ,nil );if _gfd !=nil {return nil ,_gfd ;};};_bcf ,_acf :=_fc .NewContentStreamParser (_cbf (_cec .PdfField )).Parse ();
if _acf !=nil {return nil ,_acf ;};_eeb :=_fc .NewContentCreator ();if _aac .BorderSize > 0{_cccf (_eeb ,_aac ,_cef ,_gbf );};if _aac .DrawAlignmentReticle {_eafd :=_aac ;_eafd .BorderSize =0.2;_afcf (_eeb ,_eafd ,_cef ,_gbf );};_eeb .Add_BMC ("\u0054\u0078");
_eeb .Add_q ();_cef ,_gbf =_aac .applyRotation (_dag ,_cef ,_gbf ,_eeb );_eeb .Add_BT ();_edg ,_bgd ,_acf :=_aac .processDA (_cec .PdfField ,_bcf ,_bfe ,_ffg ,_eeb );if _acf !=nil {return nil ,_acf ;};_ab :=_edg .Font ;_dab :=_edg .Size ;_gdg :=_gf .MakeName (_edg .Name );
if _cec .Flags ().Has (_bc .FieldFlagMultiline )&&_cec .MaxLen !=nil {_e .Log .Debug ("\u004c\u006f\u006f\u006b\u0020\u0066\u006f\u0072\u0020\u0041\u0050\u0020\u0064\u0069\u0063\u0074\u0069\u006fn\u0061\u0072\u0079\u0020\u0066\u006f\u0072 \u004e\u0020\u006f\u0062\u006a\u0065\u0063\u0074\u0020\u0063\u006fn\u0074\u0065\u006e\u0074\u0020\u0073\u0074\u0072\u0065\u0061\u006d");
if _cecb ,_df ,_fe :=_ggab (_ae .PdfAnnotation .AP ,_bfe );_fe {_gdg =_cecb ;_dab =_df ;_bgd =true ;};};_ege :=_dab ==0;if _ege &&_bgd {_dab =_gbf *_aac .AutoFontSizeFraction ;};_cge :=_ab .Encoder ();if _cge ==nil {_e .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");
_cge =_gb .NewIdentityTextEncoder ("\u0049\u0064\u0065\u006e\u0074\u0069\u0074\u0079\u002d\u0048");};_ccb ,_acf :=_ab .GetFontDescriptor ();if _acf !=nil {_e .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 _cdg string ;if _gfg ,_fdb :=_gf .GetString (_cec .V );_fdb {_cdg =_gfg .Decoded ();};if len (_cdg )==0{return nil ,nil ;};_ec :=[]string {_cdg };_dga :=false ;if _cec .Flags ().Has (_bc .FieldFlagMultiline ){_dga =true ;_cdg =_bg .Replace (_cdg ,"\u000d\u000a","\u000a",-1);
_cdg =_bg .Replace (_cdg ,"\u000d","\u000a",-1);_ec =_bg .Split (_cdg ,"\u000a");};_edf :=make ([]string ,len (_ec ));copy (_edf ,_ec );_edd :=_aac .MultilineLineHeight ;_add :=0.0;_addc :=0;if _cge !=nil {for _dab >=0{_egef :=make ([]string ,len (_ec ));
copy (_egef ,_ec );_daa :=make ([]string ,len (_edf ));copy (_daa ,_edf );_add =0.0;_addc =0;_dgc :=len (_egef );_dgce :=0;for _dgce < _dgc {var _dgd float64 ;_daac :=-1;_ag :=_eaf ;if _aac .MarginLeft !=nil {_ag =*_aac .MarginLeft ;};for _ccbd ,_bge :=range _egef [_dgce ]{if _bge ==' '{_daac =_ccbd ;
};_ede ,_gbb :=_ab .GetRuneMetrics (_bge );if !_gbb {_e .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",_bge );
continue ;};_dgd =_ag ;_ag +=_ede .Wx ;if _dga &&!_ege &&_dab *_ag /1000.0> _cef {_addf :=_ccbd ;_cfe :=_ccbd ;if _daac > 0{_addf =_daac +1;_cfe =_daac ;};_ged :=_egef [_dgce ][_addf :];_dfd :=_daa [_dgce ][_addf :];if _dgce < len (_egef )-1{_egef =append (_egef [:_dgce +1],_egef [_dgce :]...);
_egef [_dgce +1]=_ged ;_daa =append (_daa [:_dgce +1],_daa [_dgce :]...);_daa [_dgce +1]=_dfd ;}else {_egef =append (_egef ,_ged );_daa =append (_daa ,_dfd );};_egef [_dgce ]=_egef [_dgce ][0:_cfe ];_daa [_dgce ]=_daa [_dgce ][0:_cfe ];_dgc ++;_ag =_dgd ;
break ;};};if _ag > _add {_add =_ag ;};_egef [_dgce ]=string (_cge .Encode (_egef [_dgce ]));if len (_egef [_dgce ])> 0{_addc ++;};_dgce ++;};_cfd :=_dab ;if _addc > 1{_cfd *=_edd ;};_daga :=float64 (_addc )*_cfd ;if _ege ||_daga <=_gbf {_ec =_egef ;_edf =_daa ;
break ;};_dab --;};};_fbg :=_eaf ;if _aac .MarginLeft !=nil {_fbg =*_aac .MarginLeft ;};if _dab ==0||_ege &&_add > 0&&_fbg +_add *_dab /1000.0> _cef {_dab =0.95*1000.0*(_cef -_fbg )/_add ;};_ffb :=_ebf ;{if _dgaf ,_eeg :=_gf .GetIntVal (_cec .Q );_eeg {switch _dgaf {case 0:_ffb =_ebf ;
case 1:_ffb =_ga ;case 2:_ffb =_afd ;default:_e .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",_dgaf );
};};};_fgbg :=_dab ;if _dga &&_addc > 1{_fgbg =_edd *_dab ;};var _abf float64 ;if _ccb !=nil {_abf ,_acf =_ccb .GetCapHeight ();if _acf !=nil {_e .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",_acf );
};};if int (_abf )<=0{_e .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;};_agf :=_abf /1000.0*_dab ;_ade :=0.0;{_fa :=float64 (_addc )*_fgbg ;if _ege &&_ade +_fa > _gbf {_dab =0.95*(_gbf -_ade )/float64 (_addc );_fgbg =_dab ;if _dga &&_addc > 1{_fgbg =_edd *_dab ;};_agf =_abf /1000.0*_dab ;_fa =float64 (_addc )*_fgbg ;
};if _gbf > _fa {if _dga {if _aac .MultilineVAlignMiddle {_bfg :=(_gbf -(_fa +_agf ))/2.0;_aaa :=_bfg +_fa +_agf -_fgbg ;_ade =_aaa ;if _addc > 1{_ade =_ade +(_fa /_dab *float64 (_addc ))-_fgbg -_agf ;};if _ade < _fa {_ade =(_gbf -_agf )/2.0;};}else {_ade =_gbf -_fgbg ;
if _ade > _dab {_ecg :=0.0;if _dga &&_aac .MultilineLineHeight > 1&&_addc > 1{_ecg =_aac .MultilineLineHeight -1;};_ade -=_dab *(0.5-_ecg );};};}else {_ade =(_gbf -_agf )/2.0;};};};_eeb .Add_Tf (*_gdg ,_dab );_eeb .Add_Td (_fbg ,_ade );_eef :=_fbg ;_bb :=_fbg ;
for _bab ,_cccg :=range _ec {_cb :=0.0;for _ ,_cecf :=range _edf [_bab ]{_gfc ,_edgb :=_ab .GetRuneMetrics (_cecf );if !_edgb {continue ;};_cb +=_gfc .Wx ;};_ecf :=_cb /1000.0*_dab ;_bda :=_cef -_ecf ;var _ecc float64 ;switch _ffb {case _ebf :_ecc =_eef ;
case _ga :_ecc =_bda /2;case _afd :_ecc =_bda ;};_fbg =_ecc -_bb ;if _fbg > 0.0{_eeb .Add_Td (_fbg ,0);};_bb =_ecc ;_eeb .Add_Tj (*_gf .MakeString (_cccg ));if _bab < len (_ec )-1{_eeb .Add_Td (0,-_dab *_edd );};};_eeb .Add_ET ();_eeb .Add_Q ();_eeb .Add_EMC ();
_abe :=_bc .NewXObjectForm ();_abe .Resources =_ffg ;_abe .BBox =_gf .MakeArrayFromFloats ([]float64 {0,0,_be ,_gbd });_abe .SetContentStream (_eeb .Bytes (),_aga ());_fda :=_gf .MakeDict ();_fda .Set ("\u004e",_abe .ToPdfObject ());return _fda ,nil ;};
func _fag (_dcd *_bc .PdfAnnotationWidget ,_afg *_bc .PdfFieldButton ,_edff *_bc .PdfPageResources ,_fba AppearanceStyle )(*_gf .PdfObjectDictionary ,error ){_aed ,_aaag :=_gf .GetArray (_dcd .Rect );if !_aaag {return nil ,_ff .New ("\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0052\u0065\u0063\u0074");
};_baba ,_dbb :=_bc .NewPdfRectangle (*_aed );if _dbb !=nil {return nil ,_dbb ;};_aeca ,_cag :=_baba .Width (),_baba .Height ();_ccca ,_fdee :=_aeca ,_cag ;_e .Log .Debug ("\u0043\u0068\u0065\u0063kb\u006f\u0078\u002c\u0020\u0077\u0061\u0020\u0042\u0053\u003a\u0020\u0025\u0076",_dcd .BS );
_gfdc ,_dbb :=_bc .NewStandard14Font ("\u005a\u0061\u0070f\u0044\u0069\u006e\u0067\u0062\u0061\u0074\u0073");if _dbb !=nil {return nil ,_dbb ;};_bfcb ,_bgbe :=_gf .GetDict (_dcd .MK );if _bgbe {_dge ,_ :=_gf .GetDict (_dcd .BS );_aaad :=_fba .applyAppearanceCharacteristics (_bfcb ,_dge ,_gfdc );
if _aaad !=nil {return nil ,_aaad ;};};_gcb :=_bc .NewXObjectForm ();{_cgfa :=_fc .NewContentCreator ();if _fba .BorderSize > 0{_cccf (_cgfa ,_fba ,_aeca ,_cag );};if _fba .DrawAlignmentReticle {_ebd :=_fba ;_ebd .BorderSize =0.2;_afcf (_cgfa ,_ebd ,_aeca ,_cag );
};_aeca ,_cag =_fba .applyRotation (_bfcb ,_aeca ,_cag ,_cgfa );_gbbf :=_fba .AutoFontSizeFraction *_cag ;_cdad ,_ffc :=_gfdc .GetRuneMetrics (_fba .CheckmarkRune );if !_ffc {return nil ,_ff .New ("\u0067l\u0079p\u0068\u0020\u006e\u006f\u0074\u0020\u0066\u006f\u0075\u006e\u0064");
};_gbcf :=_gfdc .Encoder ();_gfde :=_gbcf .Encode (string (_fba .CheckmarkRune ));_bba :=_cdad .Wx *_gbbf /1000.0;_fdag :=705.0;_fded :=_fdag /1000.0*_gbbf ;_gba :=_eaf ;if _fba .MarginLeft !=nil {_gba =*_fba .MarginLeft ;};_bac :=1.0;if _bba < _aeca {_gba =(_aeca -_bba )/2.0;
};if _fded < _cag {_bac =(_cag -_fded )/2.0;};_cgfa .Add_q ().Add_g (0).Add_BT ().Add_Tf ("\u005a\u0061\u0044\u0062",_gbbf ).Add_Td (_gba ,_bac ).Add_Tj (*_gf .MakeStringFromBytes (_gfde )).Add_ET ().Add_Q ();_gcb .Resources =_bc .NewPdfPageResources ();
_gcb .Resources .SetFontByName ("\u005a\u0061\u0044\u0062",_gfdc .ToPdfObject ());_gcb .BBox =_gf .MakeArrayFromFloats ([]float64 {0,0,_ccca ,_fdee });_gcb .SetContentStream (_cgfa .Bytes (),_aga ());};_cae :=_bc .NewXObjectForm ();{_gccc :=_fc .NewContentCreator ();
if _fba .BorderSize > 0{_cccf (_gccc ,_fba ,_aeca ,_cag );};_cae .BBox =_gf .MakeArrayFromFloats ([]float64 {0,0,_ccca ,_fdee });_cae .SetContentStream (_gccc .Bytes (),_aga ());};_egff :=_gf .PdfObjectName ("\u0059\u0065\u0073");_aacd ,_bgbe :=_gf .GetDict (_dcd .PdfAnnotation .AP );
if _bgbe &&_aacd !=nil {_afb :=_gf .TraceToDirectObject (_aacd .Get ("\u004e"));switch _feb :=_afb .(type ){case *_gf .PdfObjectDictionary :_fdc :=_feb .Keys ();for _ ,_fbf :=range _fdc {if _fbf !="\u004f\u0066\u0066"{_egff =_fbf ;};};};};_age :=_gf .MakeDict ();
_age .Set ("\u004f\u0066\u0066",_cae .ToPdfObject ());_age .Set (_egff ,_gcb .ToPdfObject ());_aeg :=_gf .MakeDict ();_aeg .Set ("\u004e",_age );return _aeg ,nil ;};func (_fdca *AppearanceStyle )processDA (_dbf *_bc .PdfField ,_ccbb *_fc .ContentStreamOperations ,_eac ,_fcf *_bc .PdfPageResources ,_cacf *_fc .ContentCreator )(*AppearanceFont ,bool ,error ){var _adc *AppearanceFont ;
var _fbd bool ;if _fdca .Fonts !=nil {if _fdca .Fonts .Fallback !=nil {_adc =_fdca .Fonts .Fallback ;};if _ccfa :=_fdca .Fonts .FieldFallbacks ;_ccfa !=nil {if _dcc ,_gbdg :=_ccfa [_dbf .PartialName ()];_gbdg {_adc =_dcc ;}else if _adf ,_bbf :=_dbf .FullName ();
_bbf ==nil {if _eda ,_ecga :=_ccfa [_adf ];_ecga {_adc =_eda ;};};};if _adc !=nil {_adc .fillName ();};_fbd =_fdca .Fonts .ForceReplace ;};var _fccc string ;var _afbc float64 ;var _bdcb bool ;if _ccbb !=nil {for _ ,_eccg :=range *_ccbb {if _eccg .Operand =="\u0054\u0066"&&len (_eccg .Params )==2{if _feda ,_cee :=_gf .GetNameVal (_eccg .Params [0]);
_cee {_fccc =_feda ;};if _ddcb ,_aea :=_gf .GetNumberAsFloat (_eccg .Params [1]);_aea ==nil {_afbc =_ddcb ;};_bdcb =true ;continue ;};_cacf .AddOperand (*_eccg );};};var _ceaf *AppearanceFont ;var _agcb _gf .PdfObject ;if _fbd &&_adc !=nil {_ceaf =_adc ;
}else {if _eac !=nil &&_fccc !=""{if _eaeb ,_ffdf :=_eac .GetFontByName (*_gf .MakeName (_fccc ));_ffdf {if _bfb ,_bbce :=_bc .NewPdfFontFromPdfObject (_eaeb );_bbce ==nil {_agcb =_eaeb ;_ceaf =&AppearanceFont {Name :_fccc ,Font :_bfb ,Size :_afbc };}else {_e .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",_bbce );
};};};if _ceaf ==nil &&_adc !=nil {_ceaf =_adc ;};if _ceaf ==nil {_ebb ,_beg :=_bc .NewStandard14Font ("\u0048e\u006c\u0076\u0065\u0074\u0069\u0063a");if _beg !=nil {return nil ,false ,_beg ;};_ceaf =&AppearanceFont {Name :"\u0048\u0065\u006c\u0076",Font :_ebb ,Size :_afbc };
};};if _ceaf .Size <=0&&_fdca .Fonts !=nil &&_fdca .Fonts .FallbackSize > 0{_ceaf .Size =_fdca .Fonts .FallbackSize ;};_dec :=*_gf .MakeName (_ceaf .Name );if _agcb ==nil {_agcb =_ceaf .Font .ToPdfObject ();};if _eac !=nil &&!_eac .HasFontByName (_dec ){_eac .SetFontByName (_dec ,_agcb );
};if _fcf !=nil &&!_fcf .HasFontByName (_dec ){_fcf .SetFontByName (_dec ,_agcb );};return _ceaf ,_bdcb ,nil ;};func (_cda *AppearanceFont )fillName (){if _cda .Font ==nil ||_cda .Name !=""{return ;};_aa :=_cda .Font .FontDescriptor ();if _aa ==nil ||_aa .FontName ==nil {return ;
};_cda .Name =_aa .FontName .String ();};

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

// CheckboxFieldOptions defines optional parameters for a checkbox field a form.
type CheckboxFieldOptions struct{Checked bool ;};

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

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

// 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 _bc .PdfColor ;FillColor _bc .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 ;};

// 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 (_gcce FieldAppearance )WrapContentStream (page *_bc .PdfPage )error {_eddg ,_ccac :=page .GetAllContentStreams ();if _ccac !=nil {return _ccac ;};_geeb :=_fc .NewContentStreamParser (_eddg );_eafdc ,_ccac :=_geeb .Parse ();if _ccac !=nil {return _ccac ;
};_eafdc .WrapIfNeeded ();_ebbb :=[]string {_eafdc .String ()};return page .SetContentStreams (_ebbb ,_aga ());};

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

// 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 *_bc .PdfPage ,name string ,rect []float64 ,opt TextFieldOptions )(*_bc .PdfFieldText ,error ){if page ==nil {return nil ,_ff .New ("\u0070a\u0067e\u0020\u006e\u006f\u0074\u0020s\u0070\u0065c\u0069\u0066\u0069\u0065\u0064");};if len (name )<=0{return nil ,_ff .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 ,_ff .New ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0072\u0061\u006e\u0067\u0065");};_dgb :=_bc .NewPdfField ();_bbd :=&_bc .PdfFieldText {};_dgb .SetContext (_bbd );_bbd .PdfField =_dgb ;_bbd .T =_gf .MakeString (name );
if opt .MaxLen > 0{_bbd .MaxLen =_gf .MakeInteger (int64 (opt .MaxLen ));};if len (opt .Value )> 0{_bbd .V =_gf .MakeString (opt .Value );};_dcbe :=_bc .NewPdfAnnotationWidget ();_dcbe .Rect =_gf .MakeArrayFromFloats (rect );_dcbe .P =page .ToPdfObject ();
_dcbe .F =_gf .MakeInteger (4);_dcbe .Parent =_bbd .ToPdfObject ();_bbd .Annotations =append (_bbd .Annotations ,_dcbe );return _bbd ,nil ;};func _ggab (_cdaf _gf .PdfObject ,_ddgb *_bc .PdfPageResources )(*_gf .PdfObjectName ,float64 ,bool ){var (_efd *_gf .PdfObjectName ;
_caa float64 ;_ccd bool ;);if _bacc ,_dce :=_gf .GetDict (_cdaf );_dce &&_bacc !=nil {_bfbe :=_gf .TraceToDirectObject (_bacc .Get ("\u004e"));switch _afgf :=_bfbe .(type ){case *_gf .PdfObjectStream :_cecg ,_gfb :=_gf .DecodeStream (_afgf );if _gfb !=nil {_e .Log .Debug ("\u0045\u0052\u0052\u004f\u0052\u0020\u0075\u006e\u0061\u0062\u006c\u0065\u0020\u0064\u0065\u0063\u006f\u0064\u0065\u0020\u0063\u006f\u006e\u0074e\u006e\u0074\u0020\u0073\u0074r\u0065\u0061m\u003a\u0020\u0025\u0076",_gfb .Error ());
return nil ,0,false ;};_gaaf ,_gfb :=_fc .NewContentStreamParser (string (_cecg )).Parse ();if _gfb !=nil {_e .Log .Debug ("\u0045\u0052R\u004f\u0052\u0020\u0075n\u0061\u0062l\u0065\u0020\u0070\u0061\u0072\u0073\u0065\u0020c\u006f\u006e\u0074\u0065\u006e\u0074\u0020\u0073\u0074\u0072\u0065\u0061m\u003a\u0020\u0025\u0076",_gfb .Error ());
return nil ,0,false ;};_ecb :=_fc .NewContentStreamProcessor (*_gaaf );_ecb .AddHandler (_fc .HandlerConditionEnumOperand ,"\u0054\u0066",func (_gcf *_fc .ContentStreamOperation ,_edda _fc .GraphicsState ,_eadd *_bc .PdfPageResources )error {if len (_gcf .Params )==2{if _fad ,_cde :=_gf .GetName (_gcf .Params [0]);
_cde {_efd =_fad ;};if _bede ,_cace :=_gf .GetNumberAsFloat (_gcf .Params [1]);_cace ==nil {_caa =_bede ;};_ccd =true ;return _fc .ErrEarlyExit ;};return nil ;});_ecb .Process (_ddgb );return _efd ,_caa ,_ccd ;};};return nil ,0,false ;};

// CreateCircleAnnotation creates a circle/ellipse annotation object with appearance stream that can be added to
// page PDF annotations.
func CreateCircleAnnotation (circDef CircleAnnotationDef )(*_bc .PdfAnnotation ,error ){_bf :=_bc .NewPdfAnnotationCircle ();if circDef .BorderEnabled {_ea ,_ee ,_fcc :=circDef .BorderColor .R (),circDef .BorderColor .G (),circDef .BorderColor .B ();_bf .C =_gf .MakeArrayFromFloats ([]float64 {_ea ,_ee ,_fcc });
_bd :=_bc .NewBorderStyle ();_bd .SetBorderWidth (circDef .BorderWidth );_bf .BS =_bd .ToPdfObject ();};if circDef .FillEnabled {_ffd ,_fbe ,_eae :=circDef .FillColor .R (),circDef .FillColor .G (),circDef .FillColor .B ();_bf .IC =_gf .MakeArrayFromFloats ([]float64 {_ffd ,_fbe ,_eae });
}else {_bf .IC =_gf .MakeArrayFromIntegers ([]int {});};if circDef .Opacity < 1.0{_bf .CA =_gf .MakeFloat (circDef .Opacity );};_d ,_ge ,_ef :=_fg (circDef );if _ef !=nil {return nil ,_ef ;};_bf .AP =_d ;_bf .Rect =_gf .MakeArrayFromFloats ([]float64 {_ge .Llx ,_ge .Lly ,_ge .Urx ,_ge .Ury });
return _bf .PdfAnnotation ,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 *_bc .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 _bc .PdfColor ;

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

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

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

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

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

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

// ImagePosition specifies the image location relative to the text signature.
ImagePosition SignatureImagePosition ;};func (_dbge *AppearanceStyle )applyAppearanceCharacteristics (_dac *_gf .PdfObjectDictionary ,_ffea *_gf .PdfObjectDictionary ,_abfc *_bc .PdfFont )error {if !_dbge .AllowMK {return nil ;};if CA ,_aef :=_gf .GetString (_dac .Get ("\u0043\u0041"));
_aef &&_abfc !=nil {_dbd :=CA .Bytes ();if len (_dbd )!=0{_faag :=[]rune (_abfc .Encoder ().Decode (_dbd ));if len (_faag )==1{_dbge .CheckmarkRune =_faag [0];};};};if BC ,_ceg :=_gf .GetArray (_dac .Get ("\u0042\u0043"));_ceg {_bcg ,_fbfg :=BC .ToFloat64Array ();
if _fbfg !=nil {return _fbfg ;};switch len (_bcg ){case 1:_dbge .BorderColor =_bc .NewPdfColorDeviceGray (_bcg [0]);case 3:_dbge .BorderColor =_bc .NewPdfColorDeviceRGB (_bcg [0],_bcg [1],_bcg [2]);case 4:_dbge .BorderColor =_bc .NewPdfColorDeviceCMYK (_bcg [0],_bcg [1],_bcg [2],_bcg [3]);
default:_e .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 (_bcg ));
};if _ffea !=nil {if _gbgb ,_eafg :=_gf .GetNumberAsFloat (_ffea .Get ("\u0057"));_eafg ==nil {_dbge .BorderSize =_gbgb ;};};};if BG ,_acfe :=_gf .GetArray (_dac .Get ("\u0042\u0047"));_acfe {_def ,_gde :=BG .ToFloat64Array ();if _gde !=nil {return _gde ;
};switch len (_def ){case 1:_dbge .FillColor =_bc .NewPdfColorDeviceGray (_def [0]);case 3:_dbge .FillColor =_bc .NewPdfColorDeviceRGB (_def [0],_def [1],_def [2]);case 4:_dbge .FillColor =_bc .NewPdfColorDeviceCMYK (_def [0],_def [1],_def [2],_def [3]);
default:_e .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 (_def ));
};};return nil ;};

// InkAnnotationDef holds base information for constructing an ink annotation.
type InkAnnotationDef struct{

// Paths is the array of stroked paths which compose the annotation.
Paths []_fb .Path ;

// Color is the color of the line. Default to black.
Color *_bc .PdfColorDeviceRGB ;

// LineWidth is the width of the line.
LineWidth float64 ;};const (_ebf quadding =0;_ga quadding =1;_afd quadding =2;_eaf float64 =2.0;);func _cbf (_bfgf *_bc .PdfField )string {if _bfgf ==nil {return "";};_cac ,_adbf :=_bfgf .GetContext ().(*_bc .PdfFieldText );if !_adbf {return _cbf (_bfgf .Parent );
};if _cac .DA !=nil {return _cac .DA .Str ();};return _cbf (_cac .Parent );};func _ecdg (_gdbc *_bc .PdfField ,_dcg ,_bdca float64 ,_gee string ,_gfeg AppearanceStyle ,_edga *_fc .ContentStreamOperations ,_geg *_bc .PdfPageResources ,_edgc *_gf .PdfObjectDictionary )(*_bc .XObjectForm ,error ){_effe :=_bc .NewPdfPageResources ();
_fbfa ,_ebcb :=_dcg ,_bdca ;_dae :=_fc .NewContentCreator ();if _gfeg .BorderSize > 0{_cccf (_dae ,_gfeg ,_dcg ,_bdca );};if _gfeg .DrawAlignmentReticle {_dca :=_gfeg ;_dca .BorderSize =0.2;_afcf (_dae ,_dca ,_dcg ,_bdca );};_dae .Add_BMC ("\u0054\u0078");
_dae .Add_q ();_dae .Add_BT ();_dcg ,_bdca =_gfeg .applyRotation (_edgc ,_dcg ,_bdca ,_dae );_deb ,_edfg ,_gegf :=_gfeg .processDA (_gdbc ,_edga ,_geg ,_effe ,_dae );if _gegf !=nil {return nil ,_gegf ;};_edfa :=_deb .Font ;_efc :=_deb .Size ;_abg :=_gf .MakeName (_deb .Name );
_afc :=_efc ==0;if _afc &&_edfg {_efc =_bdca *_gfeg .AutoFontSizeFraction ;};_cff :=_edfa .Encoder ();if _cff ==nil {_e .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");
_cff =_gb .NewIdentityTextEncoder ("\u0049\u0064\u0065\u006e\u0074\u0069\u0074\u0079\u002d\u0048");};if len (_gee )==0{return nil ,nil ;};_adb :=_eaf ;if _gfeg .MarginLeft !=nil {_adb =*_gfeg .MarginLeft ;};_ddg :=0.0;if _cff !=nil {for _ ,_dea :=range _gee {_dbe ,_bgbg :=_edfa .GetRuneMetrics (_dea );
if !_bgbg {_e .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",_dea );
continue ;};_ddg +=_dbe .Wx ;};_gee =string (_cff .Encode (_gee ));};if _efc ==0||_afc &&_ddg > 0&&_adb +_ddg *_efc /1000.0> _dcg {_efc =0.95*1000.0*(_dcg -_adb )/_ddg ;};_dgda :=1.0*_efc ;_bga :=2.0;{_caf :=_dgda ;if _afc &&_bga +_caf > _bdca {_efc =0.95*(_bdca -_bga );
_dgda =1.0*_efc ;_caf =_dgda ;};if _bdca > _caf {_bga =(_bdca -_caf )/2.0;_bga +=1.50;};};_dae .Add_Tf (*_abg ,_efc );_dae .Add_Td (_adb ,_bga );_dae .Add_Tj (*_gf .MakeString (_gee ));_dae .Add_ET ();_dae .Add_Q ();_dae .Add_EMC ();_aadc :=_bc .NewXObjectForm ();
_aadc .Resources =_effe ;_aadc .BBox =_gf .MakeArrayFromFloats ([]float64 {0,0,_fbfa ,_ebcb });_aadc .SetContentStream (_dae .Bytes (),_aga ());return _aadc ,nil ;};func _fg (_a CircleAnnotationDef )(*_gf .PdfObjectDictionary ,*_bc .PdfRectangle ,error ){_eb :=_bc .NewXObjectForm ();
_eb .Resources =_bc .NewPdfPageResources ();_c :="";if _a .Opacity < 1.0{_af :=_gf .MakeDict ();_af .Set ("\u0063\u0061",_gf .MakeFloat (_a .Opacity ));_af .Set ("\u0043\u0041",_gf .MakeFloat (_a .Opacity ));_cc :=_eb .Resources .AddExtGState ("\u0067\u0073\u0031",_af );
if _cc !=nil {_e .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 ,_cc ;};_c ="\u0067\u0073\u0031";};_gd ,_fgg ,_fgc ,_cd :=_gc (_a ,_c );
if _cd !=nil {return nil ,nil ,_cd ;};_cd =_eb .SetContentStream (_gd ,nil );if _cd !=nil {return nil ,nil ,_cd ;};_eb .BBox =_fgg .ToPdfObject ();_ba :=_gf .MakeDict ();_ba .Set ("\u004e",_eb .ToPdfObject ());return _ba ,_fgc ,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 };};func _fbag (_cege []float64 )[]float64 {var (_cbgc =len (_cege );_bbfb =make ([]float64 ,_cbgc );_ccba =make ([]float64 ,_cbgc ););_bdbf :=2.0;_bbfb [0]=_cege [0]/_bdbf ;
for _faed :=1;_faed < _cbgc ;_faed ++{_ccba [_faed ]=1/_bdbf ;if _faed < _cbgc -1{_bdbf =4.0;}else {_bdbf =3.5;};_bdbf -=_ccba [_faed ];_bbfb [_faed ]=(_cege [_faed ]-_bbfb [_faed -1])/_bdbf ;};for _acd :=1;_acd < _cbgc ;_acd ++{_bbfb [_cbgc -_acd -1]-=_ccba [_cbgc -_acd ]*_bbfb [_cbgc -_acd ];
};return _bbfb ;};func _afcf (_cgc *_fc .ContentCreator ,_bfcf AppearanceStyle ,_afce ,_gbg float64 ){_cgc .Add_q ().Add_re (0,0,_afce ,_gbg ).Add_re (0,_gbg /2,_afce ,_gbg /2).Add_re (0,0,_afce ,_gbg ).Add_re (_afce /2,0,_afce /2,_gbg ).Add_w (_bfcf .BorderSize ).SetStrokingColor (_bfcf .BorderColor ).SetNonStrokingColor (_bfcf .FillColor ).Add_B ().Add_Q ();
};

// Style returns the appearance style of `fa`. If not specified, returns default style.
func (_agfc ImageFieldAppearance )Style ()AppearanceStyle {if _agfc ._dagb !=nil {return *_agfc ._dagb ;};return AppearanceStyle {BorderSize :0.0,BorderColor :_bc .NewPdfColorDeviceGray (0),FillColor :_bc .NewPdfColorDeviceGray (1),DrawAlignmentReticle :false };
};

// CreateLineAnnotation creates a line annotation object that can be added to page PDF annotations.
func CreateLineAnnotation (lineDef LineAnnotationDef )(*_bc .PdfAnnotation ,error ){_gdag :=_bc .NewPdfAnnotationLine ();_gdag .L =_gf .MakeArrayFromFloats ([]float64 {lineDef .X1 ,lineDef .Y1 ,lineDef .X2 ,lineDef .Y2 });_gdge :=_gf .MakeName ("\u004e\u006f\u006e\u0065");
if lineDef .LineEndingStyle1 ==_fb .LineEndingStyleArrow {_gdge =_gf .MakeName ("C\u006c\u006f\u0073\u0065\u0064\u0041\u0072\u0072\u006f\u0077");};_fggc :=_gf .MakeName ("\u004e\u006f\u006e\u0065");if lineDef .LineEndingStyle2 ==_fb .LineEndingStyleArrow {_fggc =_gf .MakeName ("C\u006c\u006f\u0073\u0065\u0064\u0041\u0072\u0072\u006f\u0077");
};_gdag .LE =_gf .MakeArray (_gdge ,_fggc );if lineDef .Opacity < 1.0{_gdag .CA =_gf .MakeFloat (lineDef .Opacity );};_dabe ,_cbfb ,_aaca :=lineDef .LineColor .R (),lineDef .LineColor .G (),lineDef .LineColor .B ();_gdag .IC =_gf .MakeArrayFromFloats ([]float64 {_dabe ,_cbfb ,_aaca });
_gdag .C =_gf .MakeArrayFromFloats ([]float64 {_dabe ,_cbfb ,_aaca });_gab :=_bc .NewBorderStyle ();_gab .SetBorderWidth (lineDef .LineWidth );_gdag .BS =_gab .ToPdfObject ();_cdab ,_dfc ,_fedc :=_gbgbb (lineDef );if _fedc !=nil {return nil ,_fedc ;};_gdag .AP =_cdab ;
_gdag .Rect =_gf .MakeArrayFromFloats ([]float64 {_dfc .Llx ,_dfc .Lly ,_dfc .Urx ,_dfc .Ury });return _gdag .PdfAnnotation ,nil ;};func _aga ()_gf .StreamEncoder {return _gf .NewFlateEncoder ()};func _bff (_aaaf *_bc .PdfAcroForm ,_dgee *_bc .PdfAnnotationWidget ,_bgc *_bc .PdfFieldChoice ,_egd AppearanceStyle )(*_gf .PdfObjectDictionary ,error ){_aacb ,_fbcd :=_gf .GetArray (_dgee .Rect );
if !_fbcd {return nil ,_ff .New ("\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0052\u0065\u0063\u0074");};_ead ,_baf :=_bc .NewPdfRectangle (*_aacb );if _baf !=nil {return nil ,_baf ;};_ddfb ,_beb :=_ead .Width (),_ead .Height ();_e .Log .Debug ("\u0043\u0068\u006f\u0069\u0063\u0065\u002c\u0020\u0077\u0061\u0020\u0042S\u003a\u0020\u0025\u0076",_dgee .BS );
_ebc ,_baf :=_fc .NewContentStreamParser (_cbf (_bgc .PdfField )).Parse ();if _baf !=nil {return nil ,_baf ;};_dbg ,_acg :=_gf .GetDict (_dgee .MK );if _acg {_bgf ,_ :=_gf .GetDict (_dgee .BS );_gce :=_egd .applyAppearanceCharacteristics (_dbg ,_bgf ,nil );
if _gce !=nil {return nil ,_gce ;};};_eag :=_gf .MakeDict ();for _ ,_ffbb :=range _bgc .Opt .Elements (){if _caec ,_faa :=_gf .GetArray (_ffbb );_faa &&_caec .Len ()==2{_ffbb =_caec .Get (1);};var _ddc string ;if _bfa ,_gdb :=_gf .GetString (_ffbb );_gdb {_ddc =_bfa .Decoded ();
}else if _ccg ,_dgg :=_gf .GetName (_ffbb );_dgg {_ddc =_ccg .String ();}else {_e .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",_ffbb );
return nil ,_ff .New ("\u006e\u006f\u0074\u0020\u0061\u0020\u006e\u0061\u006d\u0065\u002f\u0073t\u0072\u0069\u006e\u0067");};if len (_ddc )> 0{_agdf ,_babb :=_ecdg (_bgc .PdfField ,_ddfb ,_beb ,_ddc ,_egd ,_ebc ,_aaaf .DR ,_dbg );if _babb !=nil {return nil ,_babb ;
};_eag .Set (*_gf .MakeName (_ddc ),_agdf .ToPdfObject ());};};_fdd :=_gf .MakeDict ();_fdd .Set ("\u004e",_eag );return _fdd ,nil ;};func (_gccd *AppearanceStyle )applyRotation (_cfg *_gf .PdfObjectDictionary ,_cbd ,_bgdg float64 ,_bbcd *_fc .ContentCreator )(float64 ,float64 ){if !_gccd .AllowMK {return _cbd ,_bgdg ;
};if _cfg ==nil {return _cbd ,_bgdg ;};_ecde ,_ :=_gf .GetNumberAsFloat (_cfg .Get ("\u0052"));if _ecde ==0{return _cbd ,_bgdg ;};_dda :=-_ecde ;_gdgf :=_fb .Path {Points :[]_fb .Point {_fb .NewPoint (0,0).Rotate (_dda ),_fb .NewPoint (_cbd ,0).Rotate (_dda ),_fb .NewPoint (0,_bgdg ).Rotate (_dda ),_fb .NewPoint (_cbd ,_bgdg ).Rotate (_dda )}}.GetBoundingBox ();
_bbcd .RotateDeg (_ecde );_bbcd .Translate (_gdgf .X ,_gdgf .Y );return _gdgf .Width ,_gdgf .Height ;};func _ebdb (_acfeb []*SignatureLine ,_fbdd *SignatureFieldOpts )(*_gf .PdfObjectDictionary ,error ){if _fbdd ==nil {_fbdd =NewSignatureFieldOpts ();};
var _bccb error ;var _ebfb *_gf .PdfObjectName ;_cacc :=_fbdd .Font ;if _cacc !=nil {_aab ,_ :=_cacc .GetFontDescriptor ();if _aab !=nil {if _abc ,_cab :=_aab .FontName .(*_gf .PdfObjectName );_cab {_ebfb =_abc ;};};if _ebfb ==nil {_ebfb =_gf .MakeName ("\u0046\u006f\u006et\u0031");
};}else {if _cacc ,_bccb =_bc .NewStandard14Font ("\u0048e\u006c\u0076\u0065\u0074\u0069\u0063a");_bccb !=nil {return nil ,_bccb ;};_ebfb =_gf .MakeName ("\u0048\u0065\u006c\u0076");};_aabg :=_fbdd .FontSize ;if _aabg <=0{_aabg =10;};if _fbdd .LineHeight <=0{_fbdd .LineHeight =1;
};_faeb :=_fbdd .LineHeight *_aabg ;_bgg ,_bef :=_cacc .GetRuneMetrics (' ');if !_bef {return nil ,_ff .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");
};_abfb :=_bgg .Wx ;var _aff float64 ;var _ecdgd []string ;for _ ,_acee :=range _acfeb {if _acee .Text ==""{continue ;};_fea :=_acee .Text ;if _acee .Desc !=""{_fea =_acee .Desc +"\u003a\u0020"+_fea ;};_ecdgd =append (_ecdgd ,_fea );var _fdf float64 ;for _ ,_cgef :=range _fea {_aaf ,_daace :=_cacc .GetRuneMetrics (_cgef );
if !_daace {continue ;};_fdf +=_aaf .Wx ;};if _fdf > _aff {_aff =_fdf ;};};_aff =_aff *_aabg /1000.0;_cacce :=float64 (len (_ecdgd ))*_faeb ;_fbddc :=_fbdd .Image !=nil ;_cbfc :=_fbdd .Rect ;if _cbfc ==nil {_cbfc =[]float64 {0,0,_aff ,_cacce };if _fbddc {_cbfc [2]=_aff *2;
_cbfc [3]=_cacce *2;};_fbdd .Rect =_cbfc ;};_fddg :=_cbfc [2]-_cbfc [0];_bed :=_cbfc [3]-_cbfc [1];_aafc ,_gcceb :=_cbfc ,_cbfc ;var _edb ,_eed float64 ;if _fbddc &&len (_ecdgd )> 0{if _fbdd .ImagePosition <=SignatureImageRight {_dage :=[]float64 {_cbfc [0],_cbfc [1],_cbfc [0]+(_fddg /2),_cbfc [3]};
_cgec :=[]float64 {_cbfc [0]+(_fddg /2),_cbfc [1],_cbfc [2],_cbfc [3]};if _fbdd .ImagePosition ==SignatureImageLeft {_aafc ,_gcceb =_dage ,_cgec ;}else {_aafc ,_gcceb =_cgec ,_dage ;};}else {_faae :=[]float64 {_cbfc [0],_cbfc [1],_cbfc [2],_cbfc [1]+(_bed /2)};
_eegg :=[]float64 {_cbfc [0],_cbfc [1]+(_bed /2),_cbfc [2],_cbfc [3]};if _fbdd .ImagePosition ==SignatureImageTop {_aafc ,_gcceb =_eegg ,_faae ;}else {_aafc ,_gcceb =_faae ,_eegg ;};};};_edb =_gcceb [2]-_gcceb [0];_eed =_gcceb [3]-_gcceb [1];var _bedb float64 ;
if _fbdd .AutoSize {if _aff > _edb ||_cacce > _eed {_fcb :=_fd .Min (_edb /_aff ,_eed /_cacce );_aabg *=_fcb ;};_faeb =_fbdd .LineHeight *_aabg ;_bedb +=(_eed -float64 (len (_ecdgd ))*_faeb )/2;};_adfb :=_fc .NewContentCreator ();_caba :=_bc .NewPdfPageResources ();
_caba .SetFontByName (*_ebfb ,_cacc .ToPdfObject ());if _fbdd .BorderSize <=0{_fbdd .BorderSize =0;_fbdd .BorderColor =_bc .NewPdfColorDeviceGray (1);};_adfb .Add_q ();if _fbdd .FillColor !=nil {_adfb .SetNonStrokingColor (_fbdd .FillColor );};if _fbdd .BorderColor !=nil {_adfb .SetStrokingColor (_fbdd .BorderColor );
};_adfb .Add_w (_fbdd .BorderSize ).Add_re (_cbfc [0],_cbfc [1],_fddg ,_bed );if _fbdd .FillColor !=nil &&_fbdd .BorderColor !=nil {_adfb .Add_B ();}else if _fbdd .FillColor !=nil {_adfb .Add_f ();}else if _fbdd .BorderColor !=nil {_adfb .Add_S ();};_adfb .Add_Q ();
if _fbdd .WatermarkImage !=nil {_ddgc :=[]float64 {_cbfc [0],_cbfc [1],_cbfc [2],_cbfc [3]};_aecg ,_cfc ,_bcb :=_eab (_fbdd .WatermarkImage ,"\u0049\u006d\u0061\u0067\u0065\u0057\u0061\u0074\u0065r\u006d\u0061\u0072\u006b",_fbdd ,_ddgc ,_adfb );if _bcb !=nil {return nil ,_bcb ;
};_caba .SetXObjectImageByName (*_aecg ,_cfc );};_adfb .Add_q ();_adfb .Translate (_gcceb [0],_gcceb [3]-_faeb -_bedb );_adfb .Add_BT ();_aadb :=_cacc .Encoder ();for _ ,_cga :=range _ecdgd {var _bbad []byte ;for _ ,_adcg :=range _cga {if _b .IsSpace (_adcg ){if len (_bbad )> 0{_adfb .SetNonStrokingColor (_fbdd .TextColor ).Add_Tf (*_ebfb ,_aabg ).Add_TL (_faeb ).Add_TJ ([]_gf .PdfObject {_gf .MakeStringFromBytes (_bbad )}...);
_bbad =nil ;};_adfb .Add_Tf (*_ebfb ,_aabg ).Add_TL (_faeb ).Add_TJ ([]_gf .PdfObject {_gf .MakeFloat (-_abfb )}...);}else {_bbad =append (_bbad ,_aadb .Encode (string (_adcg ))...);};};if len (_bbad )> 0{_adfb .SetNonStrokingColor (_fbdd .TextColor ).Add_Tf (*_ebfb ,_aabg ).Add_TL (_faeb ).Add_TJ ([]_gf .PdfObject {_gf .MakeStringFromBytes (_bbad )}...);
};_adfb .Add_Td (0,-_faeb );};_adfb .Add_ET ();_adfb .Add_Q ();if _fbddc {_fbab ,_dbed ,_deg :=_eab (_fbdd .Image ,"\u0049\u006d\u0061\u0067\u0065\u0053\u0069\u0067\u006ea\u0074\u0075\u0072\u0065",_fbdd ,_aafc ,_adfb );if _deg !=nil {return nil ,_deg ;
};_caba .SetXObjectImageByName (*_fbab ,_dbed );};_cgd :=_bc .NewXObjectForm ();_cgd .Resources =_caba ;_cgd .BBox =_gf .MakeArrayFromFloats (_cbfc );_cgd .SetContentStream (_adfb .Bytes (),_aga ());_gaf :=_gf .MakeDict ();_gaf .Set ("\u004e",_cgd .ToPdfObject ());
return _gaf ,nil ;};

// CreateInkAnnotation creates an ink annotation object that can be added to the annotation list of a PDF page.
func CreateInkAnnotation (inkDef InkAnnotationDef )(*_bc .PdfAnnotation ,error ){_addg :=_bc .NewPdfAnnotationInk ();_ccdf :=_gf .MakeArray ();for _ ,_gddd :=range inkDef .Paths {if _gddd .Length ()==0{continue ;};_aca :=[]float64 {};for _ ,_decc :=range _gddd .Points {_aca =append (_aca ,_decc .X ,_decc .Y );
};_ccdf .Append (_gf .MakeArrayFromFloats (_aca ));};_addg .InkList =_ccdf ;if inkDef .Color ==nil {inkDef .Color =_bc .NewPdfColorDeviceRGB (0.0,0.0,0.0);};_addg .C =_gf .MakeArrayFromFloats ([]float64 {inkDef .Color .R (),inkDef .Color .G (),inkDef .Color .B ()});
_fage ,_gff ,_edfb :=_faaec (&inkDef );if _edfb !=nil {return nil ,_edfb ;};_addg .AP =_fage ;_addg .Rect =_gf .MakeArrayFromFloats ([]float64 {_gff .Llx ,_gff .Lly ,_gff .Urx ,_gff .Ury });return _addg .PdfAnnotation ,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 *_bc .PdfSignature ,lines []*SignatureLine ,opts *SignatureFieldOpts )(*_bc .PdfFieldSignature ,error ){if signature ==nil {return nil ,_ff .New ("\u0073\u0069\u0067na\u0074\u0075\u0072\u0065\u0020\u0063\u0061\u006e\u006e\u006f\u0074\u0020\u0062\u0065\u0020\u006e\u0069\u006c");
};_bbca ,_dgbf :=_ebdb (lines ,opts );if _dgbf !=nil {return nil ,_dgbf ;};_cfee :=_bc .NewPdfFieldSignature (signature );_cfee .Rect =_gf .MakeArrayFromFloats (opts .Rect );_cfee .AP =_bbca ;return _cfee ,nil ;};func _cccf (_bfef *_fc .ContentCreator ,_ffef AppearanceStyle ,_dba ,_dbee float64 ){_bfef .Add_q ().Add_re (0,0,_dba ,_dbee ).Add_w (_ffef .BorderSize ).SetStrokingColor (_ffef .BorderColor ).SetNonStrokingColor (_ffef .FillColor ).Add_B ().Add_Q ();
};func _faaec (_fbcg *InkAnnotationDef )(*_gf .PdfObjectDictionary ,*_bc .PdfRectangle ,error ){_ecdd :=_bc .NewXObjectForm ();_cgaf ,_fegc ,_fdgb :=_dfa (_fbcg );if _fdgb !=nil {return nil ,nil ,_fdgb ;};_fdgb =_ecdd .SetContentStream (_cgaf ,nil );if _fdgb !=nil {return nil ,nil ,_fdgb ;
};_ecdd .BBox =_fegc .ToPdfObject ();_ecdd .Resources =_bc .NewPdfPageResources ();_ecdd .Resources .ProcSet =_gf .MakeArray (_gf .MakeName ("\u0050\u0044\u0046"));_afac :=_gf .MakeDict ();_afac .Set ("\u004e",_ecdd .ToPdfObject ());return _afac ,_fegc ,nil ;
};func _daae (_gddc LineAnnotationDef ,_bdea string )([]byte ,*_bc .PdfRectangle ,*_bc .PdfRectangle ,error ){_ccbde :=_fb .Line {X1 :0,Y1 :0,X2 :_gddc .X2 -_gddc .X1 ,Y2 :_gddc .Y2 -_gddc .Y1 ,LineColor :_gddc .LineColor ,Opacity :_gddc .Opacity ,LineWidth :_gddc .LineWidth ,LineEndingStyle1 :_gddc .LineEndingStyle1 ,LineEndingStyle2 :_gddc .LineEndingStyle2 };
_bdfb ,_faga ,_eea :=_ccbde .Draw (_bdea );if _eea !=nil {return nil ,nil ,nil ,_eea ;};_efag :=&_bc .PdfRectangle {};_efag .Llx =_gddc .X1 +_faga .Llx ;_efag .Lly =_gddc .Y1 +_faga .Lly ;_efag .Urx =_gddc .X1 +_faga .Urx ;_efag .Ury =_gddc .Y1 +_faga .Ury ;
return _bdfb ,_faga ,_efag ,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 ;};

// CreateRectangleAnnotation creates a rectangle annotation object that can be added to page PDF annotations.
func CreateRectangleAnnotation (rectDef RectangleAnnotationDef )(*_bc .PdfAnnotation ,error ){_cdd :=_bc .NewPdfAnnotationSquare ();if rectDef .BorderEnabled {_abec ,_gdff ,_bdg :=rectDef .BorderColor .R (),rectDef .BorderColor .G (),rectDef .BorderColor .B ();
_cdd .C =_gf .MakeArrayFromFloats ([]float64 {_abec ,_gdff ,_bdg });_bfgd :=_bc .NewBorderStyle ();_bfgd .SetBorderWidth (rectDef .BorderWidth );_cdd .BS =_bfgd .ToPdfObject ();};if rectDef .FillEnabled {_daf ,_feff ,_bbdc :=rectDef .FillColor .R (),rectDef .FillColor .G (),rectDef .FillColor .B ();
_cdd .IC =_gf .MakeArrayFromFloats ([]float64 {_daf ,_feff ,_bbdc });}else {_cdd .IC =_gf .MakeArrayFromIntegers ([]int {});};if rectDef .Opacity < 1.0{_cdd .CA =_gf .MakeFloat (rectDef .Opacity );};_bbde ,_dbeb ,_bfcg :=_fgf (rectDef );if _bfcg !=nil {return nil ,_bfcg ;
};_cdd .AP =_bbde ;_cdd .Rect =_gf .MakeArrayFromFloats ([]float64 {_dbeb .Llx ,_dbeb .Lly ,_dbeb .Urx ,_dbeb .Ury });return _cdd .PdfAnnotation ,nil ;};func _fgf (_dfec RectangleAnnotationDef )(*_gf .PdfObjectDictionary ,*_bc .PdfRectangle ,error ){_afba :=_bc .NewXObjectForm ();
_afba .Resources =_bc .NewPdfPageResources ();_cadb :="";if _dfec .Opacity < 1.0{_daaf :=_gf .MakeDict ();_daaf .Set ("\u0063\u0061",_gf .MakeFloat (_dfec .Opacity ));_daaf .Set ("\u0043\u0041",_gf .MakeFloat (_dfec .Opacity ));_gdde :=_afba .Resources .AddExtGState ("\u0067\u0073\u0031",_daaf );
if _gdde !=nil {_e .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 ,_gdde ;};_cadb ="\u0067\u0073\u0031";};_ggf ,_bfdd ,_beef ,_fagaa :=_dcbd (_dfec ,_cadb );
if _fagaa !=nil {return nil ,nil ,_fagaa ;};_fagaa =_afba .SetContentStream (_ggf ,nil );if _fagaa !=nil {return nil ,nil ,_fagaa ;};_afba .BBox =_bfdd .ToPdfObject ();_begb :=_gf .MakeDict ();_begb .Set ("\u004e",_afba .ToPdfObject ());return _begb ,_beef ,nil ;
};func _dcbd (_bcbd RectangleAnnotationDef ,_bdae string )([]byte ,*_bc .PdfRectangle ,*_bc .PdfRectangle ,error ){_bcfc :=_fb .Rectangle {X :0,Y :0,Width :_bcbd .Width ,Height :_bcbd .Height ,FillEnabled :_bcbd .FillEnabled ,FillColor :_bcbd .FillColor ,BorderEnabled :_bcbd .BorderEnabled ,BorderWidth :2*_bcbd .BorderWidth ,BorderColor :_bcbd .BorderColor ,Opacity :_bcbd .Opacity };
_gaca ,_eafda ,_ggca :=_bcfc .Draw (_bdae );if _ggca !=nil {return nil ,nil ,nil ,_ggca ;};_ebdg :=&_bc .PdfRectangle {};_ebdg .Llx =_bcbd .X +_eafda .Llx ;_ebdg .Lly =_bcbd .Y +_eafda .Lly ;_ebdg .Urx =_bcbd .X +_eafda .Urx ;_ebdg .Ury =_bcbd .Y +_eafda .Ury ;
return _gaca ,_eafda ,_ebdg ,nil ;};func _fddb (_eedf *_bc .PdfFieldButton ,_cbg *_bc .PdfAnnotationWidget ,_bega AppearanceStyle )(*_gf .PdfObjectDictionary ,error ){_dgdf ,_cfab :=_gf .GetArray (_cbg .Rect );if !_cfab {return nil ,_ff .New ("\u0069\u006e\u0076a\u006c\u0069\u0064\u0020\u0052\u0065\u0063\u0074");
};_cefe ,_cdbc :=_bc .NewPdfRectangle (*_dgdf );if _cdbc !=nil {return nil ,_cdbc ;};_gcg ,_gded :=_cefe .Width (),_cefe .Height ();_gedcf :=_fc .NewContentCreator ();if _bega .BorderSize > 0{_cccf (_gedcf ,_bega ,_gcg ,_gded );};if _bega .DrawAlignmentReticle {_ebeg :=_bega ;
_ebeg .BorderSize =0.2;_afcf (_gedcf ,_ebeg ,_gcg ,_gded );};_feab :=_eedf .GetFillImage ();_ggae ,_cdbc :=_dabg (_gcg ,_gded ,_feab ,_bega );if _cdbc !=nil {return nil ,_cdbc ;};_gbcfd ,_cdag :=_gf .GetDict (_cbg .MK );if _cdag {_gbcfd .Set ("\u006c",_ggae .ToPdfObject ());
};_gcbb :=_gf .MakeDict ();_gcbb .Set ("\u0046\u0052\u004d",_ggae .ToPdfObject ());_gdd :=_bc .NewPdfPageResources ();_gdd .ProcSet =_gf .MakeArray (_gf .MakeName ("\u0050\u0044\u0046"));_gdd .XObject =_gcbb ;_dbc :=_gcg -2;_efa :=_gded -2;_gedcf .Add_q ();
_gedcf .Add_re (1,1,_dbc ,_efa );_gedcf .Add_W ();_gedcf .Add_n ();_dbc -=2;_efa -=2;_gedcf .Add_q ();_gedcf .Add_re (2,2,_dbc ,_efa );_gedcf .Add_W ();_gedcf .Add_n ();_cdafg :=_fd .Min (_dbc /float64 (_feab .Width ),_efa /float64 (_feab .Height ));_gedcf .Add_cm (_cdafg ,0,0,_cdafg ,(_gcg /2)-(float64 (_feab .Width )*_cdafg /2)+2,2);
_gedcf .Add_Do ("\u0046\u0052\u004d");_gedcf .Add_Q ();_gedcf .Add_Q ();_afdg :=_bc .NewXObjectForm ();_afdg .FormType =_gf .MakeInteger (1);_afdg .Resources =_gdd ;_afdg .BBox =_gf .MakeArrayFromFloats ([]float64 {0,0,_gcg ,_gded });_afdg .Matrix =_gf .MakeArrayFromFloats ([]float64 {1.0,0.0,0.0,1.0,0.0,0.0});
_afdg .SetContentStream (_gedcf .Bytes (),_aga ());_gcfd :=_gf .MakeDict ();_gcfd .Set ("\u004e",_afdg .ToPdfObject ());return _gcfd ,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 ;_bce *AppearanceStyle ;};

// 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 *_bc .PdfColorDeviceRGB ;Opacity float64 ;LineWidth float64 ;LineEndingStyle1 _fb .LineEndingStyle ;LineEndingStyle2 _fb .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 *_bc .PdfPage ,name string ,rect []float64 ,opt ComboboxFieldOptions )(*_bc .PdfFieldChoice ,error ){if page ==nil {return nil ,_ff .New ("\u0070a\u0067e\u0020\u006e\u006f\u0074\u0020s\u0070\u0065c\u0069\u0066\u0069\u0065\u0064");
};if len (name )<=0{return nil ,_ff .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 ,_ff .New ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0072\u0061\u006e\u0067\u0065");
};_eedb :=_bc .NewPdfField ();_egb :=&_bc .PdfFieldChoice {};_eedb .SetContext (_egb );_egb .PdfField =_eedb ;_egb .T =_gf .MakeString (name );_egb .Opt =_gf .MakeArray ();for _ ,_feg :=range opt .Choices {_egb .Opt .Append (_gf .MakeString (_feg ));};
_egb .SetFlag (_bc .FieldFlagCombo );_ffge :=_bc .NewPdfAnnotationWidget ();_ffge .Rect =_gf .MakeArrayFromFloats (rect );_ffge .P =page .ToPdfObject ();_ffge .F =_gf .MakeInteger (4);_ffge .Parent =_egb .ToPdfObject ();_egb .Annotations =append (_egb .Annotations ,_ffge );
return _egb ,nil ;};func _gc (_ca CircleAnnotationDef ,_dg string )([]byte ,*_bc .PdfRectangle ,*_bc .PdfRectangle ,error ){_ccf :=_fb .Circle {X :_ca .X ,Y :_ca .Y ,Width :_ca .Width ,Height :_ca .Height ,FillEnabled :_ca .FillEnabled ,FillColor :_ca .FillColor ,BorderEnabled :_ca .BorderEnabled ,BorderWidth :_ca .BorderWidth ,BorderColor :_ca .BorderColor ,Opacity :_ca .Opacity };
_fgb ,_fbc ,_cdc :=_ccf .Draw (_dg );if _cdc !=nil {return nil ,nil ,nil ,_cdc ;};_gfe :=&_bc .PdfRectangle {};_gfe .Llx =_ca .X +_fbc .Llx ;_gfe .Lly =_ca .Y +_fbc .Lly ;_gfe .Urx =_ca .X +_fbc .Urx ;_gfe .Ury =_ca .Y +_fbc .Ury ;return _fgb ,_fbc ,_gfe ,nil ;
};

// 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 ;};

// 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 ;

// TextFieldOptions defines optional parameter for a text field in a form.
type TextFieldOptions struct{MaxLen int ;Value string ;};

// 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 *_bc .PdfColorDeviceRGB ;BorderEnabled bool ;BorderWidth float64 ;BorderColor *_bc .PdfColorDeviceRGB ;Opacity float64 ;};func _bdaaf (_aaba [][]_fb .CubicBezierCurve ,_bgac *_bc .PdfColorDeviceRGB ,_aeaa float64 )([]byte ,*_bc .PdfRectangle ,error ){_gdba :=_fc .NewContentCreator ();
_gdba .Add_q ().SetStrokingColor (_bgac ).Add_w (_aeaa );_degb :=_fb .NewCubicBezierPath ();for _ ,_aafcg :=range _aaba {_degb .Curves =append (_degb .Curves ,_aafcg ...);for _bead ,_bgad :=range _aafcg {if _bead ==0{_gdba .Add_m (_bgad .P0 .X ,_bgad .P0 .Y );
}else {_gdba .Add_l (_bgad .P0 .X ,_bgad .P0 .Y );};_gdba .Add_c (_bgad .P1 .X ,_bgad .P1 .Y ,_bgad .P2 .X ,_bgad .P2 .Y ,_bgad .P3 .X ,_bgad .P3 .Y );};};_gdba .Add_S ().Add_Q ();return _gdba .Bytes (),_degb .GetBoundingBox ().ToPdfRectangle (),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 *_bc .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 ;};

// GenerateAppearanceDict generates an appearance dictionary for widget annotation `wa` for the `field` in `form`.
// Implements interface model.FieldAppearanceGenerator.
func (_gdeg ImageFieldAppearance )GenerateAppearanceDict (form *_bc .PdfAcroForm ,field *_bc .PdfField ,wa *_bc .PdfAnnotationWidget )(*_gf .PdfObjectDictionary ,error ){_ ,_gdf :=field .GetContext ().(*_bc .PdfFieldButton );if !_gdf {_e .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 ;};_adag ,_fade :=_gf .GetDict (wa .AP );if _fade &&_gdeg .OnlyIfMissing {_e .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 _adag ,nil ;};if form .DR ==nil {form .DR =_bc .NewPdfPageResources ();};switch _gdbb :=field .GetContext ().(type ){case *_bc .PdfFieldButton :if _gdbb .IsPush (){_cgdf ,_aecf :=_fddb (_gdbb ,wa ,_gdeg .Style ());if _aecf !=nil {return nil ,_aecf ;
};return _cgdf ,nil ;};};return nil ,nil ;};

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

// SetStyle applies appearance `style` to `fa`.
func (_bccc *ImageFieldAppearance )SetStyle (style AppearanceStyle ){_bccc ._dagb =&style };type quadding int ;

// 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 (_ecae ImageFieldAppearance )WrapContentStream (page *_bc .PdfPage )error {_ebaf ,_beaf :=page .GetAllContentStreams ();if _beaf !=nil {return _beaf ;};_bdac :=_fc .NewContentStreamParser (_ebaf );_adaa ,_beaf :=_bdac .Parse ();if _beaf !=nil {return _beaf ;
};_adaa .WrapIfNeeded ();_gbca :=[]string {_adaa .String ()};return page .SetContentStreams (_gbca ,_aga ());};func _dcdge (_fegg []_fb .Point )(_bace []_fb .Point ,_fee []_fb .Point ,_gbad error ){_dbgb :=len (_fegg )-1;if len (_fegg )< 1{return nil ,nil ,_ff .New ("\u0041\u0074\u0020\u006c\u0065\u0061\u0073\u0074\u0020\u0074\u0077\u006f\u0020\u0070\u006f\u0069\u006e\u0074s \u0072e\u0071\u0075\u0069\u0072\u0065\u0064\u0020\u0074\u006f\u0020\u0063\u0061l\u0063\u0075\u006c\u0061\u0074\u0065\u0020\u0063\u0075\u0072\u0076\u0065\u0020\u0063\u006f\u006e\u0074r\u006f\u006c\u0020\u0070\u006f\u0069\u006e\u0074\u0073");
};if _dbgb ==1{_abce :=_fb .Point {X :(2*_fegg [0].X +_fegg [1].X )/3,Y :(2*_fegg [0].Y +_fegg [1].Y )/3};_bace =append (_bace ,_abce );_fee =append (_fee ,_fb .Point {X :2*_abce .X -_fegg [0].X ,Y :2*_abce .Y -_fegg [0].Y });return _bace ,_fee ,nil ;};
_faebc :=make ([]float64 ,_dbgb );for _eacc :=1;_eacc < _dbgb -1;_eacc ++{_faebc [_eacc ]=4*_fegg [_eacc ].X +2*_fegg [_eacc +1].X ;};_faebc [0]=_fegg [0].X +2*_fegg [1].X ;_faebc [_dbgb -1]=(8*_fegg [_dbgb -1].X +_fegg [_dbgb ].X )/2.0;_afcc :=_fbag (_faebc );
for _bde :=1;_bde < _dbgb -1;_bde ++{_faebc [_bde ]=4*_fegg [_bde ].Y +2*_fegg [_bde +1].Y ;};_faebc [0]=_fegg [0].Y +2*_fegg [1].Y ;_faebc [_dbgb -1]=(8*_fegg [_dbgb -1].Y +_fegg [_dbgb ].Y )/2.0;_gadd :=_fbag (_faebc );_bace =make ([]_fb .Point ,_dbgb );
_fee =make ([]_fb .Point ,_dbgb );for _edbd :=0;_edbd < _dbgb ;_edbd ++{_bace [_edbd ]=_fb .Point {X :_afcc [_edbd ],Y :_gadd [_edbd ]};if _edbd < _dbgb -1{_fee [_edbd ]=_fb .Point {X :2*_fegg [_edbd +1].X -_afcc [_edbd +1],Y :2*_fegg [_edbd +1].Y -_gadd [_edbd +1]};
}else {_fee [_edbd ]=_fb .Point {X :(_fegg [_dbgb ].X +_afcc [_dbgb -1])/2,Y :(_fegg [_dbgb ].Y +_gadd [_dbgb -1])/2};};};return _bace ,_fee ,nil ;};const (SignatureImageLeft SignatureImagePosition =iota ;SignatureImageRight ;SignatureImageTop ;SignatureImageBottom ;
);

// ImageFieldAppearance implements interface model.FieldAppearanceGenerator and generates appearance streams
// for attaching an image to a button field.
type ImageFieldAppearance struct{OnlyIfMissing bool ;_dagb *AppearanceStyle ;};func _eab (_dcgg _eg .Image ,_bec string ,_bdfg *SignatureFieldOpts ,_dgaff []float64 ,_bcbf *_fc .ContentCreator )(*_gf .PdfObjectName ,*_bc .XObjectImage ,error ){_eeba ,_agg :=_bc .DefaultImageHandler {}.NewImageFromGoImage (_dcgg );
if _agg !=nil {return nil ,nil ,_agg ;};_bdb ,_agg :=_bc .NewXObjectImageFromImage (_eeba ,nil ,_bdfg .Encoder );if _agg !=nil {return nil ,nil ,_agg ;};_egg ,_gbbb :=float64 (*_bdb .Width ),float64 (*_bdb .Height );_fab :=_dgaff [2]-_dgaff [0];_deaa :=_dgaff [3]-_dgaff [1];
if _bdfg .AutoSize {_baa :=_fd .Min (_fab /_egg ,_deaa /_gbbb );_egg *=_baa ;_gbbb *=_baa ;_dgaff [0]=_dgaff [0]+(_fab /2)-(_egg /2);_dgaff [1]=_dgaff [1]+(_deaa /2)-(_gbbb /2);};var _dcdg *_gf .PdfObjectName ;if _aeag ,_cgab :=_gf .GetName (_bdb .Name );
_cgab {_dcdg =_aeag ;}else {_dcdg =_gf .MakeName (_bec );};if _bcbf !=nil {_bcbf .Add_q ().Translate (_dgaff [0],_dgaff [1]).Scale (_egg ,_gbbb ).Add_Do (*_dcdg ).Add_Q ();}else {return nil ,nil ,_ff .New ("\u0043\u006f\u006e\u0074en\u0074\u0043\u0072\u0065\u0061\u0074\u006f\u0072\u0020\u0069\u0073\u0020\u006e\u0075l\u006c");
};return _dcdg ,_bdb ,nil ;};func _dfa (_efg *InkAnnotationDef )([]byte ,*_bc .PdfRectangle ,error ){_fbb :=[][]_fb .CubicBezierCurve {};for _ ,_debd :=range _efg .Paths {if _debd .Length ()==0{continue ;};_cage :=_debd .Points ;_fgd ,_aaae ,_dgacf :=_dcdge (_cage );
if _dgacf !=nil {return nil ,nil ,_dgacf ;};if len (_fgd )!=len (_aaae ){return nil ,nil ,_ff .New ("\u0049\u006e\u0065\u0071\u0075\u0061\u006c\u0020\u006e\u0075\u006d\u0062\u0065\u0072\u0020\u006f\u0066\u0020\u0063\u0061l\u0063\u0075\u006c\u0061\u0074\u0065\u0064\u0020\u0066\u0069\u0072\u0073\u0074\u0020\u0061\u006e\u0064\u0020\u0073\u0065\u0063\u006f\u006e\u0064\u0020\u0063\u006f\u006e\u0074\u0072o\u006c\u0020\u0070\u006f\u0069n\u0074");
};_edea :=[]_fb .CubicBezierCurve {};for _gfda :=0;_gfda < len (_fgd );_gfda ++{_edea =append (_edea ,_fb .CubicBezierCurve {P0 :_cage [_gfda ],P1 :_fgd [_gfda ],P2 :_aaae [_gfda ],P3 :_cage [_gfda +1]});};if len (_edea )> 0{_fbb =append (_fbb ,_edea );
};};_ffa ,_abd ,_dgbe :=_bdaaf (_fbb ,_efg .Color ,_efg .LineWidth );if _dgbe !=nil {return nil ,nil ,_dgbe ;};return _ffa ,_abd ,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 *_bc .PdfPage ,name string ,rect []float64 ,opt CheckboxFieldOptions )(*_bc .PdfFieldButton ,error ){if page ==nil {return nil ,_ff .New ("\u0070a\u0067e\u0020\u006e\u006f\u0074\u0020s\u0070\u0065c\u0069\u0066\u0069\u0065\u0064");
};if len (name )<=0{return nil ,_ff .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 ,_ff .New ("\u0069\u006e\u0076\u0061\u006c\u0069\u0064\u0020\u0072\u0061\u006e\u0067\u0065");
};_dgac ,_eddf :=_bc .NewStandard14Font (_bc .ZapfDingbatsName );if _eddf !=nil {return nil ,_eddf ;};_bedc :=_bc .NewPdfField ();_gdc :=&_bc .PdfFieldButton {};_bedc .SetContext (_gdc );_gdc .PdfField =_bedc ;_gdc .T =_gf .MakeString (name );_gdc .SetType (_bc .ButtonTypeCheckbox );
_ceec :="\u004f\u0066\u0066";if opt .Checked {_ceec ="\u0059\u0065\u0073";};_gdc .V =_gf .MakeName (_ceec );_agda :=_bc .NewPdfAnnotationWidget ();_agda .Rect =_gf .MakeArrayFromFloats (rect );_agda .P =page .ToPdfObject ();_agda .F =_gf .MakeInteger (4);
_agda .Parent =_gdc .ToPdfObject ();_fdgf :=rect [2]-rect [0];_aegb :=rect [3]-rect [1];var _decf _f .Buffer ;_decf .WriteString ("\u0071\u000a");_decf .WriteString ("\u0030 \u0030\u0020\u0031\u0020\u0072\u0067\n");_decf .WriteString ("\u0042\u0054\u000a");
_decf .WriteString ("\u002f\u005a\u0061D\u0062\u0020\u0031\u0032\u0020\u0054\u0066\u000a");_decf .WriteString ("\u0045\u0054\u000a");_decf .WriteString ("\u0051\u000a");_dgec :=_fc .NewContentCreator ();_dgec .Add_q ();_dgec .Add_rg (0,0,1);_dgec .Add_BT ();
_dgec .Add_Tf (*_gf .MakeName ("\u005a\u0061\u0044\u0062"),12);_dgec .Add_Td (0,0);_dgec .Add_ET ();_dgec .Add_Q ();_fcff :=_bc .NewXObjectForm ();_fcff .SetContentStream (_dgec .Bytes (),_gf .NewRawEncoder ());_fcff .BBox =_gf .MakeArrayFromFloats ([]float64 {0,0,_fdgf ,_aegb });
_fcff .Resources =_bc .NewPdfPageResources ();_fcff .Resources .SetFontByName ("\u005a\u0061\u0044\u0062",_dgac .ToPdfObject ());_dgec =_fc .NewContentCreator ();_dgec .Add_q ();_dgec .Add_re (0,0,_fdgf ,_aegb );_dgec .Add_W ().Add_n ();_dgec .Add_rg (0,0,1);
_dgec .Translate (0,3.0);_dgec .Add_BT ();_dgec .Add_Tf (*_gf .MakeName ("\u005a\u0061\u0044\u0062"),12);_dgec .Add_Td (0,0);_dgec .Add_Tj (*_gf .MakeString ("\u0034"));_dgec .Add_ET ();_dgec .Add_Q ();_ggc :=_bc .NewXObjectForm ();_ggc .SetContentStream (_dgec .Bytes (),_gf .NewRawEncoder ());
_ggc .BBox =_gf .MakeArrayFromFloats ([]float64 {0,0,_fdgf ,_aegb });_ggc .Resources =_bc .NewPdfPageResources ();_ggc .Resources .SetFontByName ("\u005a\u0061\u0044\u0062",_dgac .ToPdfObject ());_dde :=_gf .MakeDict ();_dde .Set ("\u004f\u0066\u0066",_fcff .ToPdfObject ());
_dde .Set ("\u0059\u0065\u0073",_ggc .ToPdfObject ());_dfe :=_gf .MakeDict ();_dfe .Set ("\u004e",_dde );_agda .AP =_dfe ;_agda .AS =_gf .MakeName (_ceec );_gdc .Annotations =append (_gdc .Annotations ,_agda );return _gdc ,nil ;};func _gbgbb (_bceb LineAnnotationDef )(*_gf .PdfObjectDictionary ,*_bc .PdfRectangle ,error ){_ced :=_bc .NewXObjectForm ();
_ced .Resources =_bc .NewPdfPageResources ();_cba :="";if _bceb .Opacity < 1.0{_badg :=_gf .MakeDict ();_badg .Set ("\u0063\u0061",_gf .MakeFloat (_bceb .Opacity ));_fecb :=_ced .Resources .AddExtGState ("\u0067\u0073\u0031",_badg );if _fecb !=nil {_e .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 ,_fecb ;};_cba ="\u0067\u0073\u0031";};_dgaa ,_fcg ,_bee ,_bdbg :=_daae (_bceb ,_cba );if _bdbg !=nil {return nil ,nil ,_bdbg ;};_bdbg =_ced .SetContentStream (_dgaa ,nil );if _bdbg !=nil {return nil ,nil ,_bdbg ;};_ced .BBox =_fcg .ToPdfObject ();
_dbae :=_gf .MakeDict ();_dbae .Set ("\u004e",_ced .ToPdfObject ());return _dbae ,_bee ,nil ;};