CleanBackground

CATResult CATWindow::CleanBackground ( CATRect *  dirtyRect  )  [protected, virtual] CleanBackground() cleans the dirty rectangle in the background. CleanBackground() cleans the dirty rectangle in the background This keeps us from having to perform a full copy of the background image each draw. Parameters: dirtyRect  - the rectangle to draw, or 0 to draw everything. Returns: CATResult - CAT_SUCCESS on success. Definition at line 261 of file CATWindow.cpp. References CAT_SUCCESS, CATMin(), CATImage::CopyOver(), CATGuiObj::fBackgroundColor, CATImage::FillRect(), CATGuiObj::fImage, fImageCopy, CATGuiObj::fRect, CATRect::Height(), CATImage::Height(), CATRect::Intersect(), CATRECT::left, ResetBackground(), CATRECT::top, CATRect::Width(), and CATImage::Width(). Referenced by OSDraw().

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