44 lines
962 B
Go
44 lines
962 B
Go
package konstructor
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import (
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"image/color"
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"io/ioutil"
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"golang.org/x/image/font"
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"golang.org/x/image/font/opentype"
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)
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// Font name type for function input validation
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type FontName string
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// Font preset
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type FontLayout struct {
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Path string
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DPI float64
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Size float64
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Color color.Color
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SelectedColor color.Color
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cachedFontFace font.Face
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}
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// Get font face from the preset
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func (fl *FontLayout) GetFontFace(scale int) font.Face {
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if fl.cachedFontFace != nil {
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return fl.cachedFontFace
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}
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file, _ := ioutil.ReadFile(fl.Path)
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true_type, _ := opentype.Parse(file)
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font_face, _ := opentype.NewFace(true_type, &opentype.FaceOptions{
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Size: fl.Size * float64(scale),
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DPI: fl.DPI,
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Hinting: font.HintingVertical,
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})
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fl.cachedFontFace = font_face
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return font_face
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}
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// Helper, which return the path of font
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func GetFontPath(name FontName) string {
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return "assets/fonts/" + string(name) + ".ttf"
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}
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