konstructor file prefixes refactor

konstructor/layout.font.go

@@ -0,0 +1,33 @@
+package konstructor
+
+import (
+	"image/color"
+	"io/ioutil"
+
+	"golang.org/x/image/font"
+	"golang.org/x/image/font/opentype"
+)
+
+type FontLayout struct {
+	Path           string
+	DPI            float64
+	Size           float64
+	Color          color.Color
+	SelectedColor  color.Color
+	cachedFontFace font.Face
+}
+
+func (fl *FontLayout) GetFontFace() font.Face {
+	if fl.cachedFontFace != nil {
+		return fl.cachedFontFace
+	}
+	file, _ := ioutil.ReadFile(fl.Path)
+	true_type, _ := opentype.Parse(file)
+	font_face, _ := opentype.NewFace(true_type, &opentype.FaceOptions{
+		Size:    fl.DPI,
+		DPI:     fl.Size,
+		Hinting: font.HintingVertical,
+	})
+	fl.cachedFontFace = font_face
+	return font_face
+}