mirror of
https://github.com/unidoc/unipdf.git
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258 lines
16 KiB
Go
258 lines
16 KiB
Go
/*
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* This file is subject to the terms and conditions defined in
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* file 'LICENSE.md', which is part of this source code package.
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*/
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/*
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* The embedded character metrics specified in this file are distributed under the terms listed in
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* ./testdata/afms/MustRead.html.
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*/
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package fonts
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import (
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"github.com/unidoc/unidoc/pdf/core"
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"github.com/unidoc/unidoc/pdf/model/textencoding"
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)
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// FontSymbol represents the Symbol font.
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// This is a built-in font and it is assumed that every reader has access to it.
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type FontSymbol struct {
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// By default encoder is not set, which means that we use the font's built in encoding.
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encoder textencoding.TextEncoder
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}
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// NewFontSymbol returns a new instance of the font with a default encoder set (SymbolEncoder).
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func NewFontSymbol() FontSymbol {
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font := FontSymbol{}
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font.encoder = textencoding.NewSymbolEncoder()
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return font
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}
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// Encoder returns the font's text encoder.
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func (font FontSymbol) Encoder() textencoding.TextEncoder {
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return font.encoder
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}
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// SetEncoder sets the font's text encoder.
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func (font FontSymbol) SetEncoder(encoder textencoding.TextEncoder) {
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font.encoder = encoder
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}
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// GetGlyphCharMetrics returns character metrics for a given glyph.
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func (font FontSymbol) GetGlyphCharMetrics(glyph string) (CharMetrics, bool) {
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metrics, has := SymbolCharMetrics[glyph]
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if !has {
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return metrics, false
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}
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return metrics, true
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}
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// ToPdfObject returns a primitive PDF object representation of the font.
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func (font FontSymbol) ToPdfObject() core.PdfObject {
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fontDict := core.MakeDict()
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fontDict.Set("Type", core.MakeName("Font"))
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fontDict.Set("Subtype", core.MakeName("Type1"))
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fontDict.Set("BaseFont", core.MakeName("Symbol"))
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if font.encoder != nil {
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fontDict.Set("Encoding", font.encoder.ToPdfObject())
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}
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return core.MakeIndirectObject(fontDict)
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}
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// SymbolCharMetrics are the font metrics loaded from afms/Symbol.afm.
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// See afms/MustRead.html for license information.
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var SymbolCharMetrics = map[string]CharMetrics{
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"Alpha": {GlyphName: "Alpha", Wx: 722.000000, Wy: 0.000000},
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"Beta": {GlyphName: "Beta", Wx: 667.000000, Wy: 0.000000},
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"Chi": {GlyphName: "Chi", Wx: 722.000000, Wy: 0.000000},
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"Delta": {GlyphName: "Delta", Wx: 612.000000, Wy: 0.000000},
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"Epsilon": {GlyphName: "Epsilon", Wx: 611.000000, Wy: 0.000000},
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"Eta": {GlyphName: "Eta", Wx: 722.000000, Wy: 0.000000},
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"Euro": {GlyphName: "Euro", Wx: 750.000000, Wy: 0.000000},
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"Gamma": {GlyphName: "Gamma", Wx: 603.000000, Wy: 0.000000},
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"Ifraktur": {GlyphName: "Ifraktur", Wx: 686.000000, Wy: 0.000000},
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"Iota": {GlyphName: "Iota", Wx: 333.000000, Wy: 0.000000},
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"Kappa": {GlyphName: "Kappa", Wx: 722.000000, Wy: 0.000000},
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"Lambda": {GlyphName: "Lambda", Wx: 686.000000, Wy: 0.000000},
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"Mu": {GlyphName: "Mu", Wx: 889.000000, Wy: 0.000000},
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"Nu": {GlyphName: "Nu", Wx: 722.000000, Wy: 0.000000},
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"Omega": {GlyphName: "Omega", Wx: 768.000000, Wy: 0.000000},
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"Omicron": {GlyphName: "Omicron", Wx: 722.000000, Wy: 0.000000},
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"Phi": {GlyphName: "Phi", Wx: 763.000000, Wy: 0.000000},
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"Pi": {GlyphName: "Pi", Wx: 768.000000, Wy: 0.000000},
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"Psi": {GlyphName: "Psi", Wx: 795.000000, Wy: 0.000000},
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"Rfraktur": {GlyphName: "Rfraktur", Wx: 795.000000, Wy: 0.000000},
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"Rho": {GlyphName: "Rho", Wx: 556.000000, Wy: 0.000000},
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"Sigma": {GlyphName: "Sigma", Wx: 592.000000, Wy: 0.000000},
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"Tau": {GlyphName: "Tau", Wx: 611.000000, Wy: 0.000000},
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"Theta": {GlyphName: "Theta", Wx: 741.000000, Wy: 0.000000},
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"Upsilon": {GlyphName: "Upsilon", Wx: 690.000000, Wy: 0.000000},
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"Upsilon1": {GlyphName: "Upsilon1", Wx: 620.000000, Wy: 0.000000},
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"Xi": {GlyphName: "Xi", Wx: 645.000000, Wy: 0.000000},
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"Zeta": {GlyphName: "Zeta", Wx: 611.000000, Wy: 0.000000},
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"aleph": {GlyphName: "aleph", Wx: 823.000000, Wy: 0.000000},
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"alpha": {GlyphName: "alpha", Wx: 631.000000, Wy: 0.000000},
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"ampersand": {GlyphName: "ampersand", Wx: 778.000000, Wy: 0.000000},
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"angle": {GlyphName: "angle", Wx: 768.000000, Wy: 0.000000},
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"angleleft": {GlyphName: "angleleft", Wx: 329.000000, Wy: 0.000000},
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"angleright": {GlyphName: "angleright", Wx: 329.000000, Wy: 0.000000},
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"apple": {GlyphName: "apple", Wx: 790.000000, Wy: 0.000000},
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"approxequal": {GlyphName: "approxequal", Wx: 549.000000, Wy: 0.000000},
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"arrowboth": {GlyphName: "arrowboth", Wx: 1042.000000, Wy: 0.000000},
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"arrowdblboth": {GlyphName: "arrowdblboth", Wx: 1042.000000, Wy: 0.000000},
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"arrowdbldown": {GlyphName: "arrowdbldown", Wx: 603.000000, Wy: 0.000000},
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"arrowdblleft": {GlyphName: "arrowdblleft", Wx: 987.000000, Wy: 0.000000},
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"arrowdblright": {GlyphName: "arrowdblright", Wx: 987.000000, Wy: 0.000000},
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"arrowdblup": {GlyphName: "arrowdblup", Wx: 603.000000, Wy: 0.000000},
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"arrowdown": {GlyphName: "arrowdown", Wx: 603.000000, Wy: 0.000000},
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"arrowhorizex": {GlyphName: "arrowhorizex", Wx: 1000.000000, Wy: 0.000000},
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"arrowleft": {GlyphName: "arrowleft", Wx: 987.000000, Wy: 0.000000},
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"arrowright": {GlyphName: "arrowright", Wx: 987.000000, Wy: 0.000000},
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"arrowup": {GlyphName: "arrowup", Wx: 603.000000, Wy: 0.000000},
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"arrowvertex": {GlyphName: "arrowvertex", Wx: 603.000000, Wy: 0.000000},
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"asteriskmath": {GlyphName: "asteriskmath", Wx: 500.000000, Wy: 0.000000},
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"bar": {GlyphName: "bar", Wx: 200.000000, Wy: 0.000000},
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"beta": {GlyphName: "beta", Wx: 549.000000, Wy: 0.000000},
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"braceex": {GlyphName: "braceex", Wx: 494.000000, Wy: 0.000000},
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"braceleft": {GlyphName: "braceleft", Wx: 480.000000, Wy: 0.000000},
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"braceleftbt": {GlyphName: "braceleftbt", Wx: 494.000000, Wy: 0.000000},
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"braceleftmid": {GlyphName: "braceleftmid", Wx: 494.000000, Wy: 0.000000},
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"bracelefttp": {GlyphName: "bracelefttp", Wx: 494.000000, Wy: 0.000000},
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"braceright": {GlyphName: "braceright", Wx: 480.000000, Wy: 0.000000},
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"bracerightbt": {GlyphName: "bracerightbt", Wx: 494.000000, Wy: 0.000000},
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"bracerightmid": {GlyphName: "bracerightmid", Wx: 494.000000, Wy: 0.000000},
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"bracerighttp": {GlyphName: "bracerighttp", Wx: 494.000000, Wy: 0.000000},
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"bracketleft": {GlyphName: "bracketleft", Wx: 333.000000, Wy: 0.000000},
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"bracketleftbt": {GlyphName: "bracketleftbt", Wx: 384.000000, Wy: 0.000000},
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"bracketleftex": {GlyphName: "bracketleftex", Wx: 384.000000, Wy: 0.000000},
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"bracketlefttp": {GlyphName: "bracketlefttp", Wx: 384.000000, Wy: 0.000000},
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"bracketright": {GlyphName: "bracketright", Wx: 333.000000, Wy: 0.000000},
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"bracketrightbt": {GlyphName: "bracketrightbt", Wx: 384.000000, Wy: 0.000000},
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"bracketrightex": {GlyphName: "bracketrightex", Wx: 384.000000, Wy: 0.000000},
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"bracketrighttp": {GlyphName: "bracketrighttp", Wx: 384.000000, Wy: 0.000000},
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"bullet": {GlyphName: "bullet", Wx: 460.000000, Wy: 0.000000},
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"carriagereturn": {GlyphName: "carriagereturn", Wx: 658.000000, Wy: 0.000000},
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"chi": {GlyphName: "chi", Wx: 549.000000, Wy: 0.000000},
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"circlemultiply": {GlyphName: "circlemultiply", Wx: 768.000000, Wy: 0.000000},
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"circleplus": {GlyphName: "circleplus", Wx: 768.000000, Wy: 0.000000},
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"club": {GlyphName: "club", Wx: 753.000000, Wy: 0.000000},
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"colon": {GlyphName: "colon", Wx: 278.000000, Wy: 0.000000},
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"comma": {GlyphName: "comma", Wx: 250.000000, Wy: 0.000000},
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"congruent": {GlyphName: "congruent", Wx: 549.000000, Wy: 0.000000},
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"copyrightsans": {GlyphName: "copyrightsans", Wx: 790.000000, Wy: 0.000000},
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"copyrightserif": {GlyphName: "copyrightserif", Wx: 790.000000, Wy: 0.000000},
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"degree": {GlyphName: "degree", Wx: 400.000000, Wy: 0.000000},
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"delta": {GlyphName: "delta", Wx: 494.000000, Wy: 0.000000},
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"diamond": {GlyphName: "diamond", Wx: 753.000000, Wy: 0.000000},
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"divide": {GlyphName: "divide", Wx: 549.000000, Wy: 0.000000},
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"dotmath": {GlyphName: "dotmath", Wx: 250.000000, Wy: 0.000000},
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"eight": {GlyphName: "eight", Wx: 500.000000, Wy: 0.000000},
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"element": {GlyphName: "element", Wx: 713.000000, Wy: 0.000000},
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"ellipsis": {GlyphName: "ellipsis", Wx: 1000.000000, Wy: 0.000000},
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"emptyset": {GlyphName: "emptyset", Wx: 823.000000, Wy: 0.000000},
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"epsilon": {GlyphName: "epsilon", Wx: 439.000000, Wy: 0.000000},
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"equal": {GlyphName: "equal", Wx: 549.000000, Wy: 0.000000},
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"equivalence": {GlyphName: "equivalence", Wx: 549.000000, Wy: 0.000000},
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"eta": {GlyphName: "eta", Wx: 603.000000, Wy: 0.000000},
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"exclam": {GlyphName: "exclam", Wx: 333.000000, Wy: 0.000000},
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"existential": {GlyphName: "existential", Wx: 549.000000, Wy: 0.000000},
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"five": {GlyphName: "five", Wx: 500.000000, Wy: 0.000000},
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"florin": {GlyphName: "florin", Wx: 500.000000, Wy: 0.000000},
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"four": {GlyphName: "four", Wx: 500.000000, Wy: 0.000000},
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"fraction": {GlyphName: "fraction", Wx: 167.000000, Wy: 0.000000},
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"gamma": {GlyphName: "gamma", Wx: 411.000000, Wy: 0.000000},
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"gradient": {GlyphName: "gradient", Wx: 713.000000, Wy: 0.000000},
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"greater": {GlyphName: "greater", Wx: 549.000000, Wy: 0.000000},
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"greaterequal": {GlyphName: "greaterequal", Wx: 549.000000, Wy: 0.000000},
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"heart": {GlyphName: "heart", Wx: 753.000000, Wy: 0.000000},
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"infinity": {GlyphName: "infinity", Wx: 713.000000, Wy: 0.000000},
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"integral": {GlyphName: "integral", Wx: 274.000000, Wy: 0.000000},
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"integralbt": {GlyphName: "integralbt", Wx: 686.000000, Wy: 0.000000},
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"integralex": {GlyphName: "integralex", Wx: 686.000000, Wy: 0.000000},
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"integraltp": {GlyphName: "integraltp", Wx: 686.000000, Wy: 0.000000},
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"intersection": {GlyphName: "intersection", Wx: 768.000000, Wy: 0.000000},
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"iota": {GlyphName: "iota", Wx: 329.000000, Wy: 0.000000},
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"kappa": {GlyphName: "kappa", Wx: 549.000000, Wy: 0.000000},
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"lambda": {GlyphName: "lambda", Wx: 549.000000, Wy: 0.000000},
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"less": {GlyphName: "less", Wx: 549.000000, Wy: 0.000000},
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"lessequal": {GlyphName: "lessequal", Wx: 549.000000, Wy: 0.000000},
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"logicaland": {GlyphName: "logicaland", Wx: 603.000000, Wy: 0.000000},
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"logicalnot": {GlyphName: "logicalnot", Wx: 713.000000, Wy: 0.000000},
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"logicalor": {GlyphName: "logicalor", Wx: 603.000000, Wy: 0.000000},
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"lozenge": {GlyphName: "lozenge", Wx: 494.000000, Wy: 0.000000},
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"minus": {GlyphName: "minus", Wx: 549.000000, Wy: 0.000000},
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"minute": {GlyphName: "minute", Wx: 247.000000, Wy: 0.000000},
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"mu": {GlyphName: "mu", Wx: 576.000000, Wy: 0.000000},
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"multiply": {GlyphName: "multiply", Wx: 549.000000, Wy: 0.000000},
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"nine": {GlyphName: "nine", Wx: 500.000000, Wy: 0.000000},
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"notelement": {GlyphName: "notelement", Wx: 713.000000, Wy: 0.000000},
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"notequal": {GlyphName: "notequal", Wx: 549.000000, Wy: 0.000000},
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"notsubset": {GlyphName: "notsubset", Wx: 713.000000, Wy: 0.000000},
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"nu": {GlyphName: "nu", Wx: 521.000000, Wy: 0.000000},
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"numbersign": {GlyphName: "numbersign", Wx: 500.000000, Wy: 0.000000},
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"omega": {GlyphName: "omega", Wx: 686.000000, Wy: 0.000000},
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"omega1": {GlyphName: "omega1", Wx: 713.000000, Wy: 0.000000},
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"omicron": {GlyphName: "omicron", Wx: 549.000000, Wy: 0.000000},
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"one": {GlyphName: "one", Wx: 500.000000, Wy: 0.000000},
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"parenleft": {GlyphName: "parenleft", Wx: 333.000000, Wy: 0.000000},
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"parenleftbt": {GlyphName: "parenleftbt", Wx: 384.000000, Wy: 0.000000},
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"parenleftex": {GlyphName: "parenleftex", Wx: 384.000000, Wy: 0.000000},
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"parenlefttp": {GlyphName: "parenlefttp", Wx: 384.000000, Wy: 0.000000},
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"parenright": {GlyphName: "parenright", Wx: 333.000000, Wy: 0.000000},
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"parenrightbt": {GlyphName: "parenrightbt", Wx: 384.000000, Wy: 0.000000},
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"parenrightex": {GlyphName: "parenrightex", Wx: 384.000000, Wy: 0.000000},
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"parenrighttp": {GlyphName: "parenrighttp", Wx: 384.000000, Wy: 0.000000},
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"partialdiff": {GlyphName: "partialdiff", Wx: 494.000000, Wy: 0.000000},
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"percent": {GlyphName: "percent", Wx: 833.000000, Wy: 0.000000},
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"period": {GlyphName: "period", Wx: 250.000000, Wy: 0.000000},
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"perpendicular": {GlyphName: "perpendicular", Wx: 658.000000, Wy: 0.000000},
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"phi": {GlyphName: "phi", Wx: 521.000000, Wy: 0.000000},
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"phi1": {GlyphName: "phi1", Wx: 603.000000, Wy: 0.000000},
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"pi": {GlyphName: "pi", Wx: 549.000000, Wy: 0.000000},
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"plus": {GlyphName: "plus", Wx: 549.000000, Wy: 0.000000},
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"plusminus": {GlyphName: "plusminus", Wx: 549.000000, Wy: 0.000000},
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"product": {GlyphName: "product", Wx: 823.000000, Wy: 0.000000},
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"propersubset": {GlyphName: "propersubset", Wx: 713.000000, Wy: 0.000000},
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"propersuperset": {GlyphName: "propersuperset", Wx: 713.000000, Wy: 0.000000},
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"proportional": {GlyphName: "proportional", Wx: 713.000000, Wy: 0.000000},
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"psi": {GlyphName: "psi", Wx: 686.000000, Wy: 0.000000},
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"question": {GlyphName: "question", Wx: 444.000000, Wy: 0.000000},
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"radical": {GlyphName: "radical", Wx: 549.000000, Wy: 0.000000},
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"radicalex": {GlyphName: "radicalex", Wx: 500.000000, Wy: 0.000000},
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"reflexsubset": {GlyphName: "reflexsubset", Wx: 713.000000, Wy: 0.000000},
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"reflexsuperset": {GlyphName: "reflexsuperset", Wx: 713.000000, Wy: 0.000000},
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"registersans": {GlyphName: "registersans", Wx: 790.000000, Wy: 0.000000},
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"registerserif": {GlyphName: "registerserif", Wx: 790.000000, Wy: 0.000000},
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"rho": {GlyphName: "rho", Wx: 549.000000, Wy: 0.000000},
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"second": {GlyphName: "second", Wx: 411.000000, Wy: 0.000000},
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"semicolon": {GlyphName: "semicolon", Wx: 278.000000, Wy: 0.000000},
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"seven": {GlyphName: "seven", Wx: 500.000000, Wy: 0.000000},
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"sigma": {GlyphName: "sigma", Wx: 603.000000, Wy: 0.000000},
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"sigma1": {GlyphName: "sigma1", Wx: 439.000000, Wy: 0.000000},
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"similar": {GlyphName: "similar", Wx: 549.000000, Wy: 0.000000},
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"six": {GlyphName: "six", Wx: 500.000000, Wy: 0.000000},
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"slash": {GlyphName: "slash", Wx: 278.000000, Wy: 0.000000},
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"space": {GlyphName: "space", Wx: 250.000000, Wy: 0.000000},
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"spade": {GlyphName: "spade", Wx: 753.000000, Wy: 0.000000},
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"suchthat": {GlyphName: "suchthat", Wx: 439.000000, Wy: 0.000000},
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"summation": {GlyphName: "summation", Wx: 713.000000, Wy: 0.000000},
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"tau": {GlyphName: "tau", Wx: 439.000000, Wy: 0.000000},
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"therefore": {GlyphName: "therefore", Wx: 863.000000, Wy: 0.000000},
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"theta": {GlyphName: "theta", Wx: 521.000000, Wy: 0.000000},
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"theta1": {GlyphName: "theta1", Wx: 631.000000, Wy: 0.000000},
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"three": {GlyphName: "three", Wx: 500.000000, Wy: 0.000000},
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"trademarksans": {GlyphName: "trademarksans", Wx: 786.000000, Wy: 0.000000},
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"trademarkserif": {GlyphName: "trademarkserif", Wx: 890.000000, Wy: 0.000000},
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"two": {GlyphName: "two", Wx: 500.000000, Wy: 0.000000},
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"underscore": {GlyphName: "underscore", Wx: 500.000000, Wy: 0.000000},
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"union": {GlyphName: "union", Wx: 768.000000, Wy: 0.000000},
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"universal": {GlyphName: "universal", Wx: 713.000000, Wy: 0.000000},
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"upsilon": {GlyphName: "upsilon", Wx: 576.000000, Wy: 0.000000},
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"weierstrass": {GlyphName: "weierstrass", Wx: 987.000000, Wy: 0.000000},
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"xi": {GlyphName: "xi", Wx: 493.000000, Wy: 0.000000},
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"zero": {GlyphName: "zero", Wx: 500.000000, Wy: 0.000000},
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"zeta": {GlyphName: "zeta", Wx: 494.000000, Wy: 0.000000},
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}
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