fix(editor): a spotlight resizes by its handles - #52
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The handles sit on a layer's bounds, but a spotlight is hit-tested against its opening, so for the default elliptical shape the corner handle lies outside the shape, a press there read as empty canvas, and dragging it started a marquee instead of resizing. The press now asks which handle is under the pointer before it asks which layer is, which also leaves one copy of the tolerance test instead of two.
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Drag a spotlight's corner handle and you get a marquee selection instead of a resize.
The handles are drawn on the layer's bounding box, but a spotlight is hit-tested against its opening, so for the default ellipse the corner lands outside the shape, out in the dimmed surround. The press finds no layer, reads as empty canvas, and starts a marquee.
So the press asks which handle is under the pointer before it asks which layer is. That's the cheaper question anyway, since the handle belongs to a layer that's already selected, and it's the only order that works for any layer whose handles can sit outside itself. It also let me collapse two copies of the handle-tolerance test into one.
Draw a spotlight, leave it selected, drag a corner: on
mainthe canvas dims into a marquee, here it resizes.runSpotlightHandleSmoke(exit 96) is deliberately narrow: make handles stop answering for spotlights only and every other handle test still passes.