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WindowServer: Fix MenuApplets painting

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We need to clip painting to the actual size to prevent corrupting
the area outside of the applet as the backing store is not
guaranteed to be perfectly in sync.

Fixes #3107
This commit is contained in:
Tom 2020-08-20 17:20:30 -06:00 committed by Andreas Kling
parent 7902d215b3
commit 5c60a6a8fb
Notes: sideshowbarker 2024-07-19 03:23:03 +09:00 
Author: https://github.com/tomuta
Commit: https://github.com/SerenityOS/serenity/commit/5c60a6a8fbb
Pull-request: https://github.com/SerenityOS/serenity/pull/3238
Issue: https://github.com/SerenityOS/serenity/issues/3107
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2
Services/WindowServer/AppletManager.cpp
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@ -126,6 +126,8 @@ void AppletManager::draw_applet(const Window& applet)
return;
Gfx::Painter painter(*MenuManager::the().window().backing_store());
Gfx::PainterStateSaver saver(painter);
painter.add_clip_rect(applet.rect_in_menubar());
painter.fill_rect(applet.rect_in_menubar(), WindowManager::the().palette().window());
painter.blit(applet.rect_in_menubar().location(), *applet.backing_store(), applet.backing_store()->rect());
}