more refact

inc/ui.text.go

@@ -1,107 +0,0 @@
-package inc
-
-import (
-	"image"
-	"image/color"
-	"unicode/utf8"
-
-	"github.com/hajimehoshi/ebiten/v2"
-	"github.com/hajimehoshi/ebiten/v2/ebitenutil"
-)
-
-const (
-	glyphW = 6
-	glyphH = 16
-)
-
-var scratch *ebiten.Image
-
-func textW(s string) int { return utf8.RuneCountInString(s) * glyphW }
-
-func drawTextC(dst *ebiten.Image, s string, x, y int, c color.Color) {
-	if s == "" {
-		return
-	}
-	w, h := textW(s)+glyphW, glyphH
-	if scratch == nil || scratch.Bounds().Dx() < w || scratch.Bounds().Dy() < h {
-		nw, nh := w, h
-		if nw < 320 {
-			nw = 320
-		}
-		scratch = ebiten.NewImage(nw, nh)
-	}
-	scratch.Clear()
-	ebitenutil.DebugPrintAt(scratch, s, 0, 0)
-
-	if c == nil {
-		c = color.White
-	}
-	r, g, b, a := c.RGBA()
-	op := &ebiten.DrawImageOptions{}
-	op.GeoM.Translate(float64(x), float64(y))
-	op.ColorScale.Scale(
-		float32(r)/0xffff, float32(g)/0xffff, float32(b)/0xffff, float32(a)/0xffff,
-	)
-	dst.DrawImage(scratch.SubImage(image.Rect(0, 0, w, h)).(*ebiten.Image), op)
-}
-
-func wrap(s string, maxPx int) []string {
-	if maxPx <= glyphW || textW(s) <= maxPx {
-		return []string{s}
-	}
-	var out []string
-	line, word := "", ""
-	flush := func() {
-		if line != "" {
-			out = append(out, line)
-			line = ""
-		}
-	}
-	emit := func() {
-		if word == "" {
-			return
-		}
-		switch {
-		case line == "":
-			line = word
-		case textW(line+" "+word) <= maxPx:
-			line += " " + word
-		default:
-			flush()
-			line = word
-		}
-		word = ""
-	}
-	for _, r := range s {
-		switch r {
-		case ' ':
-			emit()
-		case '\n':
-			emit()
-			flush()
-		default:
-			word += string(r)
-		}
-	}
-	emit()
-	flush()
-	if len(out) == 0 {
-		return []string{s}
-	}
-	return out
-}
-
-func clip(s string, maxPx int) string {
-	r := []rune(s)
-	max := maxPx / glyphW
-	switch {
-	case max <= 0:
-		return ""
-	case len(r) <= max:
-		return s
-	case max == 1:
-		return string(r[:1])
-	default:
-		return string(r[:max-1]) + "…"
-	}
-}