43 lines
1.1 KiB
Go
43 lines
1.1 KiB
Go
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package ui
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import (
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"github.com/gdamore/tcell"
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)
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type Drawable interface {
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// Called when this renderable should draw itself
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Draw(ctx *Context)
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// Specifies a function to call when this cell needs to be redrawn
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OnInvalidate(callback func(d Drawable))
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// Invalidates the drawable
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Invalidate()
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}
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type Interactive interface {
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// Returns true if the event was handled by this component
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Event(event tcell.Event) bool
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}
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type Simulator interface {
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// Queues up the given input events for simulation
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Simulate(events []tcell.Event)
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}
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type DrawableInteractive interface {
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Drawable
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Interactive
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}
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// A drawable which contains other drawables
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type Container interface {
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Drawable
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// A list of all drawables which are children of this one (do not recurse
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// into your grandchildren).
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Children() []Drawable
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// Return the "focused" child, or none of no preference. Does not actually
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// have to be Interactive. If there is a preferred child, input events will
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// be directed to it. If there's no preference, events will be delivered to
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// all children.
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InteractiveChild() Drawable
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}
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