kerning in StrokeText

tfriedel6 · Mar 22, 2020 · 066f4f5 · 066f4f5
1 parent d3cc20f
commit 066f4f5
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/text.go b/text.go
@@ -326,11 +326,20 @@ func (cv *Canvas) StrokeText(str string, x, y float64) {
  prevPath := cv.path
  cv.BeginPath()
 
+ prev, hasPrev := truetype.Index(0), false
  for _, rn := range str {
  idx := fnt.Index(rn)
  if idx == 0 {
  idx = fnt.Index(' ')
  }
+
+ if hasPrev {
+ kern := fnt.Kern(cv.state.fontSize, prev, idx)
+ if frc.hinting != font.HintingNone {
+ kern = (kern + 32) &^ 63
+ }
+ x += float64(kern) / 64
+ }
  advance, _, err := frc.glyphMeasure(idx, fixed.Point26_6{})
  if err != nil {
  continue