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WindowServer: Optimize backing store placement for resizing windows

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When a window is being resized, its size may differ from the size of its backing
store. In this case, peek at the direction the window is being resized in, and
render the backing store at the same place as it was previously.

https://github.com/SerenityOS/serenity/issues/52
This commit is contained in:
Sergey Bugaev 2019-11-22 19:13:32 +03:00 • committed by Andreas Kling
parent 555b4236f8
commit 2b9ec22576
3 changed files with 52 additions and 16 deletions
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1
Servers/WindowServer/WSWindowManager.h
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@ -123,6 +123,7 @@ public:
void set_resize_candidate(WSWindow&, ResizeDirection);
void clear_resize_candidate();
ResizeDirection resize_direction_of_window(const WSWindow&);
bool any_opaque_window_contains_rect(const Rect&);
bool any_opaque_window_above_this_one_contains_rect(const WSWindow&, const Rect&);