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examples/ui: Use image.Rectangle as struct members

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This commit is contained in:
Hajime Hoshi 2017-07-23 03:21:02 +09:00
parent ce7dc79697
commit ce126fbcdd
1 changed files with 20 additions and 37 deletions
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49
examples/ui/main.go
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@ -168,10 +168,7 @@ func drawNinePatches(dst *ebiten.Image, dstRect image.Rectangle, srcRect image.R
}
type Button struct {
X int
Y int
Width int
Height int
Rect image.Rectangle
Text string
mouseDown bool
@ -182,7 +179,7 @@ func (b *Button) Update() {
b.pressed = false
if theInput.IsMouseButtonPressed() {
x, y := ebiten.CursorPosition()
if b.X <= x && x < (b.X+b.Width) && b.Y <= y && y < (b.Y+b.Height) {
if b.Rect.Min.X <= x && x < b.Rect.Max.X && b.Rect.Min.Y <= y && y < b.Rect.Max.Y {
b.mouseDown = true
} else {
b.mouseDown = false
@ -200,13 +197,12 @@ func (b *Button) Draw(dst *ebiten.Image) {
if b.mouseDown {
t = imageTypeButtonPressed
}
r := image.Rect(b.X, b.Y, b.X+b.Width, b.Y+b.Height)
drawNinePatches(dst, r, imageSrcRects[t])
drawNinePatches(dst, b.Rect, imageSrcRects[t])
bounds, _ := font.BoundString(uiFont, b.Text)
w := (bounds.Max.X - bounds.Min.X).Ceil()
x := b.X + (b.Width-w)/2
y := (b.Y + b.Height) - (b.Height-uiFontMHeight)/2
x := b.Rect.Min.X + (b.Rect.Dx()-w)/2
y := b.Rect.Max.Y - (b.Rect.Dy()-uiFontMHeight)/2
text.Draw(dst, b.Text, uiFont, x, y, color.Black)
}
@ -307,10 +303,7 @@ const (
)
type TextBox struct {
X int
Y int
Width int
Height int
Rect image.Rectangle
Text string
contentBuf *ebiten.Image
@ -331,9 +324,9 @@ func (t *TextBox) Update() {
if t.vScrollBar == nil {
t.vScrollBar = &VScrollBar{}
}
t.vScrollBar.X = t.X + t.Width - VScrollBarWidth
t.vScrollBar.Y = t.Y
t.vScrollBar.Height = t.Height
t.vScrollBar.X = t.Rect.Max.X - VScrollBarWidth
t.vScrollBar.Y = t.Rect.Min.Y
t.vScrollBar.Height = t.Rect.Dy()
_, h := t.contentSize()
t.vScrollBar.Update(h)
@ -344,11 +337,11 @@ func (t *TextBox) Update() {
func (t *TextBox) contentSize() (int, int) {
h := len(strings.Split(t.Text, "\n")) * lineHeight
return t.Width, h
return t.Rect.Dx(), h
}
func (t *TextBox) viewSize() (int, int) {
return t.Width - VScrollBarWidth - textBoxPaddingLeft, t.Height
return t.Rect.Dx() - VScrollBarWidth - textBoxPaddingLeft, t.Rect.Dy()
}
func (t *TextBox) contentOffset() (int, int) {
@ -356,8 +349,7 @@ func (t *TextBox) contentOffset() (int, int) {
}
func (t *TextBox) Draw(dst *ebiten.Image) {
r := image.Rect(t.X, t.Y, t.X+t.Width, t.Y+t.Height)
drawNinePatches(dst, r, imageSrcRects[imageTypeTextBox])
drawNinePatches(dst, t.Rect, imageSrcRects[imageTypeTextBox])
if t.contentBuf != nil {
vw, vh := t.viewSize()
@ -386,7 +378,7 @@ func (t *TextBox) Draw(dst *ebiten.Image) {
text.Draw(t.contentBuf, line, uiFont, x, y, color.Black)
}
op := &ebiten.DrawImageOptions{}
op.GeoM.Translate(float64(t.X), float64(t.Y))
op.GeoM.Translate(float64(t.Rect.Min.X), float64(t.Rect.Min.Y))
dst.DrawImage(t.contentBuf, op)
t.vScrollBar.Draw(dst)
@ -460,17 +452,11 @@ func (c *CheckBox) CheckChanged() bool {
var (
button1 = &Button{
X: 16,
Y: 16,
Width: 128,
Height: 32,
Rect: image.Rect(16, 16, 144, 48),
Text: "Button 1",
}
button2 = &Button{
X: 160,
Y: 16,
Width: 128,
Height: 32,
Rect: image.Rect(160, 16, 288, 48),
Text: "Button 2",
}
checkBox = &CheckBox{
@ -479,10 +465,7 @@ var (
Text: "Check Box!",
}
textBoxLog = &TextBox{
X: 16,
Y: 96,
Width: 608,
Height: 368,
Rect: image.Rect(16, 96, 624, 464),
}
)