Andreas Kling c6ffb3e2b8 VisualBuilder: Use real GWidgets instead of pretend VBWidgets. ...

That first design was the wrong idea. Instead, have VBWidget instantiate
a GWidget of the appropriate type and parent it to the VBForm.
We then use a new "greedy hit-testing" mechanism in GWidget to prevent any
mouse events from reaching the VBForm's children.

To paint the grabbers above the child widgets, I added a slightly hackish
but kind of neat second_paint_event() that is called after a widget has
painted all of his children. :^)

2019-04-11 03:34:37 +02:00

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