Forgot the modified test, oops.

newctrl/yz_repaint_test.go

@@ -0,0 +1,128 @@
+// 21 august 2014
+
+package ui
+
+import (
+	"image"
+	"image/color"
+	"image/draw"
+	"strconv"
+)
+
+type repainter struct {
+	img     *image.RGBA
+	area    Area
+	x       TextField
+	y       TextField
+	width   TextField
+	height  TextField
+	repaint Button
+	all     Button
+	grid    Grid
+
+	xv int
+	yv int
+	wv int
+	hv int
+}
+
+func newRepainter(times int) *repainter {
+	r := new(repainter)
+	r.img = tileImage(times)
+	r.area = NewArea(r.img.Rect.Dx(), r.img.Rect.Dy(), r)
+	r.area.OnTextFieldDismissed(r.tfdone)
+	r.x = NewTextField()
+	r.x.OnChanged(r.setx)
+	r.y = NewTextField()
+	r.y.OnChanged(r.sety)
+	r.width = NewTextField()
+	r.width.OnChanged(r.setwidth)
+	r.height = NewTextField()
+	r.height.OnChanged(r.setheight)
+	r.repaint = NewButton("Rect")
+	r.repaint.OnClicked(r.dorect)
+	r.all = NewButton("All")
+	r.all.OnClicked(r.doall)
+	grid := NewGrid()
+	grid.Add(r.area, nil, South, true, Fill, true, Fill, 3, 6)
+	grid.Add(r.x, nil, East, true, Fill, false, LeftTop, 1, 1)
+	grid.Add(r.y, nil, South, true, Fill, false, LeftTop, 1, 1)
+	grid.Add(r.width, nil, South, true, Fill, false, LeftTop, 1, 1)
+	grid.Add(r.height, nil, South, true, Fill, false, LeftTop, 1, 1)
+	grid.Add(r.repaint, nil, South, true, Fill, true, Fill, 1, 1)
+	grid.Add(r.all, nil, South, true, Center, false, LeftTop, 1, 1)
+	r.grid = grid
+	r.grid.SetPadded(*spaced)
+	return r
+}
+
+func (r *repainter) Paint(rect image.Rectangle) *image.RGBA {
+	return r.img.SubImage(rect).(*image.RGBA)
+}
+
+func (r *repainter) Mouse(me MouseEvent) {
+	if me.Up == 1 {
+		r.area.OpenTextFieldAt(me.Pos.X, me.Pos.Y)
+	}
+}
+
+func (r *repainter) tfdone() {
+	println(r.area.TextFieldText())
+}
+
+func (r *repainter) Key(ke KeyEvent) bool { return false }
+
+func (r *repainter) setx() {
+	i, err := strconv.Atoi(r.x.Text())
+	if err != nil {
+		r.x.Invalid(err.Error())
+		return
+	}
+	r.x.Invalid("")
+	r.xv = i
+}
+
+func (r *repainter) sety() {
+	i, err := strconv.Atoi(r.y.Text())
+	if err != nil {
+		r.y.Invalid(err.Error())
+		return
+	}
+	r.y.Invalid("")
+	r.yv = i
+}
+
+func (r *repainter) setwidth() {
+	i, err := strconv.Atoi(r.width.Text())
+	if err != nil {
+		r.width.Invalid(err.Error())
+		return
+	}
+	r.width.Invalid("")
+	r.wv = i
+}
+
+func (r *repainter) setheight() {
+	i, err := strconv.Atoi(r.height.Text())
+	if err != nil {
+		r.height.Invalid(err.Error())
+		return
+	}
+	r.height.Invalid("")
+	r.hv = i
+}
+
+func (r *repainter) alter(rect image.Rectangle, c color.Color) {
+	draw.Draw(r.img, rect, &image.Uniform{c}, image.ZP, draw.Over)
+}
+
+func (r *repainter) dorect() {
+	rect := image.Rect(r.xv, r.yv, r.xv+r.wv, r.yv+r.hv)
+	r.alter(rect, color.RGBA{255, 0, 255, 128})
+	r.area.Repaint(rect)
+}
+
+func (r *repainter) doall() {
+	r.alter(r.img.Rect, color.RGBA{255, 255, 0, 128})
+	r.area.RepaintAll()
+}