func (self HorizontalLayout) Layout(bounds geom.Rect, widgets ...Widget) {
n := len(widgets)
bounds.W -= float64(n-1) * self.Spacing
bounds.W /= float64(n)
for _, w := range widgets {
w.SetBounds(bounds)
bounds.X += bounds.W + self.Spacing
}
}
func redraw(widget Widget, bounds geom.Rect) {
if view, ok := widget.(*View); ok {
view.redraw(bounds)
return
}
if parent := widget.Parent(); parent != nil {
r := parent.Bounds()
bounds.X += r.X
bounds.Y += r.Y
redraw(parent, bounds)
return
}
}
func (self *Frame) SetBounds(bounds geom.Rect) {
self.Control.SetBounds(bounds)
bounds.X = 0
bounds.Y = 0
self.Layout().Layout(bounds, self.Children()...)
}
func RedrawRect(widget Widget, rect geom.Rect) {
bounds := widget.Bounds()
rect.X += bounds.X
rect.Y += bounds.Y
redraw(widget, rect)
}