12b4807bc9
add a very (very) basic resize/layout design to the canvas
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Items call ::queue_resize(), which sets a flag in the canvas; at next idle, we call
Canvas::layout() which walks the item tree and recursively calls layout (depth first)
on all items needing a resize.
Only Container types implement layout, and so far only Box
2021-08-13 12:51:26 -06:00
84afcb62c4
Canvas: child_changed() API fix for Box
2021-08-13 12:51:25 -06:00
cec5ce8f45
Update canvas/UI lib GPL boilerplate and (C) from git log
2019-08-03 15:53:17 +02:00
52718b3411
some initial bits of work on canvas allocation
2017-02-01 21:58:20 +01:00
4fa4b9a135
remove use of boost::optional to define "undefined" Canvas::Rect, and use Rect::empty instead.
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This commit includes Rect::operator bool() which might be a candidate for removal in a future commit, in an attempt
to make the meaning clearer
2017-01-19 20:54:54 +01:00
fccd0da9c6
bug fixes for Canvas::Box
2016-09-27 14:59:32 -05:00
85c1523611
add new Box container for Canvas.
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API subject to change and improvement
2016-09-27 14:59:32 -05:00