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GUI: Don't try drawing widgets with an empty bounding rectangle

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Fixes the dropdown buttons being incorrectly drawn in the keymaps
dialog with the classic theme when scrolled down.
This commit is contained in:
Bastien Bouclet 2020-02-19 20:07:12 +01:00 committed by Filippos Karapetis
parent 9475192e81
commit aaa71d53b2
1 changed files with 5 additions and 0 deletions
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5
gui/ThemeEngine.cpp
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@ -876,6 +876,11 @@ void ThemeEngine::drawDD(DrawData type, const Common::Rect &r, uint32 dynamic, b
extendedRect.clip(_clip);
}
// Cull the elements not in the clip rect
if (extendedRect.isEmpty()) {
return;
}
if (forceRestore || drawData->_layer == kDrawLayerBackground)
restoreBackground(extendedRect);