func (cb *CheckBox) Draw() {
var img image.Image
if cb.checked && cb.mouseIn {
img = tk.cbCheckedHover
} else if cb.checked && !cb.mouseIn {
img = tk.cbChecked
} else if !cb.checked && cb.mouseIn {
img = tk.cbUncheckedHover
} else if !cb.checked && !cb.mouseIn {
img = tk.cbUnchecked
}
gfx.DrawOver(&cb.parent.Element, img, cb.Element.X, cb.Element.Y, cb.Element.Width, cb.Element.Height)
if cb.txt != "" {
w, h, _ := fonts.ExpectedSize(cb.Element.Font, cb.txt)
voffsetTxt := cb.Element.Height/2 - int(h)/2 + 1
// FIXME: temp solution. instead, parent element should expose region redraw method
bg := cb.parent.GetBG()
gfx.RectFilled(cb.parent.Element.Buffer,
cb.Element.X+cb.Element.Width+ICON_TEXT_SPACE,
cb.Element.Y+voffsetTxt,
cb.Element.X+cb.Element.Width+ICON_TEXT_SPACE+int(w),
cb.Element.Y+voffsetTxt+int(h),
cb.parent.Element.Width,
bg.R, bg.G, bg.B, bg.A)
fonts.Render(&cb.parent.Element, cb.txt,
cb.Element.X+cb.Element.Width+ICON_TEXT_SPACE, cb.Element.Y+voffsetTxt,
cb.parent.Element.Width-cb.Element.X-ICON_TEXT_SPACE-cb.Element.Width, cb.Element.Height,
cb.Element.Font)
}
}
func (but *Button) Draw() {
var r, g, b byte
if but.pushed {
r, g, b = 49, 80, 0
} else {
r, g, b = 80, 130, 0
}
gfx.RectFilled(but.parent.Element.Buffer, but.Element.X, but.Element.Y, but.Element.X+but.Element.Width, but.Element.Y+but.Element.Height, but.parent.Element.Width, r, g, b, gfx.A_OPAQUE)
gfx.Rect(but.parent.Element.Buffer, but.Element.X, but.Element.Y, but.Element.X+but.Element.Width-1, but.Element.Y+but.Element.Height-1, but.parent.Element.Width, 0, 0, 0, gfx.A_OPAQUE)
if but.style&BS_TEXT != 0 {
w, h, _ := fonts.ExpectedSize(but.Element.Font, but.txt)
hoffsetTxt := but.Element.Width/2 - int(w)/2
voffsetTxt := but.Element.Height/2 - int(h)/2 + 1
fonts.Render(&but.parent.Element, but.txt,
but.Element.X+hoffsetTxt, but.Element.Y+voffsetTxt,
but.Element.Width, but.Element.Height, but.Element.Font)
} else if but.style&BS_ICON_TEXT != 0 {
iw := but.icon.Bounds().Dx()
ih := but.icon.Bounds().Dy()
w, h, _ := fonts.ExpectedSize(but.Element.Font, but.txt)
hoffsetIcon := but.Element.Width/2 - int(int(w)+iw+ICON_TEXT_SPACE)/2
voffsetTxt := but.Element.Height/2 - int(h)/2 + 1
voffsetIcon := but.Element.Height/2 - int(ih)/2
gfx.DrawOver(&but.parent.Element, but.icon, but.Element.X+hoffsetIcon, but.Element.Y+voffsetIcon, iw, ih)
fonts.Render(&but.parent.Element, but.txt,
but.Element.X+hoffsetIcon+iw+ICON_TEXT_SPACE, but.Element.Y+voffsetTxt,
but.Element.Width, but.Element.Height, but.Element.Font)
} else if but.style&BS_ICON != 0 {
iw := but.icon.Bounds().Dx()
ih := but.icon.Bounds().Dy()
hoffsetIcon := but.Element.Width/2 - int(iw)/2
voffsetIcon := but.Element.Height/2 - int(ih)/2
gfx.DrawOver(&but.parent.Element, but.icon, but.Element.X+hoffsetIcon, but.Element.Y+voffsetIcon, iw, ih)
}
}
func (win *Window) CheckBox(style byte, ms *mouse.Mouse, txt string, fnClick clickHandler, x, y int) *CheckBox {
cb := &CheckBox{
parent: win,
fb: win.fb,
clickHndr: fnClick,
txt: txt,
style: style,
checked: false,
mouseIn: false,
}
win.Children.PushFront(cb)
cb.Element = base.Element{
Id: base.GenerateId(),
X: x,
Y: y,
ScreenX: win.Element.X + x,
ScreenY: win.Element.Y + y,
Width: tk.cbChecked.Bounds().Dx(),
Height: tk.cbChecked.Bounds().Dy(),
InvMsgPipe: win.InvMsgPipe,
Font: fonts.Default(),
}
var totalWidth, totalHeight int
if txt != "" {
w, h, _ := fonts.ExpectedSize(cb.Element.Font, txt)
totalWidth = cb.Element.Width + ICON_TEXT_SPACE + int(w)
if int(h) > cb.Element.Height {
totalHeight = int(h)
} else {
totalHeight = cb.Element.Height
}
} else {
totalWidth = cb.Element.Width
totalHeight = cb.Element.Height
}
ms.RegisterMouse(cb.Element.Id, cb.Mouse, nil, &cb.Element.ScreenX, &cb.Element.ScreenY, totalWidth, totalHeight)
cb.Draw()
return cb
}