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SharedGraphics: Add PainterStateSaver RAII helper and Point::operator-().

Two little things to help tidy up a bit in WSWindowManager.
This commit is contained in:
Andreas Kling 2019-03-09 16:54:41 +01:00
parent 3c2139b824
commit 88f6ce152f
3 changed files with 22 additions and 7 deletions

View file

@ -80,3 +80,20 @@ private:
Retained<GraphicsBitmap> m_target;
Vector<State> m_state_stack;
};
class PainterStateSaver {
public:
PainterStateSaver(Painter& painter)
: m_painter(painter)
{
m_painter.save();
}
~PainterStateSaver()
{
m_painter.restore();
}
private:
Painter& m_painter;
};