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🎨 Improve export PDF footer font

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Liang Ding 2023-04-01 13:23:45 +08:00
parent 2489633760
commit b48e78df5d
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GPG key ID: 136F30F901A2231D
4 changed files with 47 additions and 27 deletions
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45
kernel/util/font.go
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@ -22,7 +22,10 @@ import (
"strings"
"github.com/88250/gulu"
"github.com/88250/pdfcpu/pkg/api"
"github.com/88250/pdfcpu/pkg/font"
"github.com/ConradIrwin/font/sfnt"
"github.com/adrg/sysfont"
"github.com/flopp/go-findfont"
"github.com/siyuan-note/logging"
ttc "golang.org/x/image/font/sfnt"
@ -31,23 +34,43 @@ import (
)
var (
preferredFonts = []string{"Microsoft YaHei", "SimSun", "微软雅黑", "宋体", "仿宋", "Helvetica Neue", "Luxi Sans", "DejaVu Sans", "sans-serif", "Arial"}
preferredPDFFonts = []string{"Microsoft YaHei", "SimSun", "微软雅黑", "宋体", "仿宋", "Helvetica Neue", "Luxi Sans", "DejaVu Sans", "sans-serif", "Arial"}
preferredPDFWatermarkFonts = []string{"MicrosoftYaHei", "SimSun", "LucidaSans", "Corbel", "Helvetica", "Arial", "sans-serif"}
)
func GetPreferredFontFilePath(currentLanguage string) *Font {
fonts := loadFonts(currentLanguage)
for _, font := range fonts {
logging.LogInfof("font: %+v", font)
func InstallPDFFonts() string {
names := font.UserFontNames()
if 0 < len(names) {
return getPreferredPDFWatermarkFont(names)
}
sort.Slice(fonts, func(i, j int) bool { return len(fonts[i].Family) > len(fonts[j].Family) })
for _, font := range fonts {
if gulu.Str.Contains(font.Family, preferredFonts) {
return font
finder := sysfont.NewFinder(&sysfont.FinderOpts{Extensions: []string{".ttf", ".ttc"}})
var fontPaths []string
for _, preferredFont := range preferredPDFFonts {
f := finder.Match(preferredFont)
if nil != f {
fontPaths = append(fontPaths, f.Filename)
}
}
return nil
if err := api.InstallFonts(fontPaths); nil != err {
logging.LogErrorf("install font failed: %s", err)
}
names = font.UserFontNames()
logging.LogInfof("pdf fonts [%s]", strings.Join(names, ", "))
return getPreferredPDFWatermarkFont(names)
}
func getPreferredPDFWatermarkFont(userFontNames []string) string {
for _, preferredFont := range preferredPDFWatermarkFonts {
for _, userFont := range userFontNames {
if preferredFont == userFont {
return preferredFont
}
}
}
return "Helvetica"
}
func GetSysFonts(currentLanguage string) (ret []string) {