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// 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
stack Stack
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)
r.stack = NewHorizontalStack(r.x, r.y, r.width, r.height, r.repaint, r.all)
r.stack.SetStretchy(0)
r.stack.SetStretchy(1)
r.stack.SetStretchy(2)
r.stack.SetStretchy(3)
r.stack = NewVerticalStack(r.area, r.stack)
r.stack.SetStretchy(0)
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()
}
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