24 lines
960 B
Plaintext
24 lines
960 B
Plaintext
class CircleTarget: RectBlock {
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hits: Object
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function hitTest(self: CircleTarget, mount: Mount, point: Point): Bool {
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return point.inCircle(40, 40, 40)
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}
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function paint(self: CircleTarget, mount: Mount, geometry: Bounds): DisplayList {
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drawing = RectBlock.paint(self, mount, geometry)
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drawing.commands.at(0).width = 80
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drawing.commands.at(0).radius = 40
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return drawing
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}
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function onEvent(self: CircleTarget, event: Event): Unit {
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self.hits.increment()
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event.stopPropagation()
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}
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}
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hits = ui.state(0)
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background = ui.state(0)
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circle = CircleTarget(160, 80, 0, "#237A45", hits)
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root = Column(24, 16, circle, TextBlock("点击圆内计入圆；透明右半区域交给父容器"), TextBlock("圆内点击"), ui.textOf(hits, "value"), TextBlock("父容器点击"), ui.textOf(background, "value"))
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connection = root.on("click", background.increment)
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page = Page()
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page.render(root)
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