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opentype.go
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opentype.go
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// seehuhn.de/go/pdf - a library for reading and writing PDF files
// Copyright (C) 2024 Jochen Voss <voss@seehuhn.de>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package embed
import (
"seehuhn.de/go/pdf"
"seehuhn.de/go/pdf/font"
"seehuhn.de/go/pdf/font/cff"
"seehuhn.de/go/pdf/font/truetype"
"seehuhn.de/go/sfnt"
)
// OpenTypeFile loads and embeds an OpenType/TrueType font.
func OpenTypeFile(w pdf.Putter, fname string, opt *font.Options) (font.Layouter, error) {
info, err := sfnt.ReadFile(fname)
if err != nil {
return nil, err
}
return OpenTypeFont(w, info, opt)
}
// OpenTypeFont embeds an OpenType/TrueType font.
func OpenTypeFont(w pdf.Putter, info *sfnt.Font, opt *font.Options) (font.Layouter, error) {
var F font.Font
var err error
if info.IsCFF() {
F, err = cff.New(info)
} else {
F, err = truetype.New(info)
}
if err != nil {
return nil, err
}
return F.Embed(w, opt)
}