72 lines
1.5 KiB
Go
72 lines
1.5 KiB
Go
package ui
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import "opslag.de/schobers/geom"
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var _ Control = &Overlays{}
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type Overlays struct {
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Proxy
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overlays map[string]Control
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order []string
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visible map[string]bool
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}
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func NewOverlays(over Control) *Overlays {
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return &Overlays{
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Proxy: Proxy{Content: over},
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overlays: map[string]Control{},
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visible: map[string]bool{},
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}
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}
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func (o *Overlays) AddOnTop(name string, control Control, visible bool) {
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o.order = append(o.order, name)
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o.overlays[name] = control
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o.visible[name] = visible
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}
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func (o *Overlays) AddOnBottom(name string, control Control, visible bool) {
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o.order = append([]string{name}, o.order...)
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o.overlays[name] = control
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o.visible[name] = visible
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}
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func (o *Overlays) Arrange(ctx Context, bounds geom.RectangleF32, offset geom.PointF32, parent Control) {
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o.Proxy.Arrange(ctx, bounds, offset, parent)
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for _, overlay := range o.overlays {
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overlay.Arrange(ctx, bounds, offset, parent)
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}
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}
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func (o *Overlays) Handle(ctx Context, e Event) {
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for overlay, visible := range o.visible {
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if visible {
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o.overlays[overlay].Handle(ctx, e)
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}
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}
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o.Proxy.Handle(ctx, e)
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}
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func (o *Overlays) Hide(name string) {
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o.visible[name] = false
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}
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func (o *Overlays) Render(ctx Context) {
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o.Proxy.Render(ctx)
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for overlay, visible := range o.visible {
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if visible {
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o.overlays[overlay].Render(ctx)
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}
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}
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}
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func (o *Overlays) Show(name string) {
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o.visible[name] = true
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}
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func (o *Overlays) Toggle(name string) {
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o.visible[name] = !o.visible[name]
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}
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