kis_async_merger.h

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/* SPDX-FileCopyrightText: 2009 Dmitry Kazakov <dimula73@gmail.com>
 *
 * SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
#ifndef __KIS_ASYNC_MERGER_H
#define __KIS_ASYNC_MERGER_H
 
#include "kritaimage_export.h"
#include "kis_types.h"
#include "KisRenderPassFlags.h"
 
class QRect;
class KisBaseRectsWalker;
 
class KRITAIMAGE_EXPORT KisAsyncMerger
{
public:
    void startMerge(KisBaseRectsWalker &walker, bool notifyClones = true);
 
private:
    inline void resetProjection();
    inline void setupProjection(KisProjectionLeafSP currentLeaf, const QRect& rect, bool useTempProjection);
    inline void writeProjection(KisProjectionLeafSP topmostLeaf, bool useTempProjection, const QRect &rect);
    inline bool compositeWithProjection(KisProjectionLeafSP leaf, const QRect &rect);
    inline void doNotifyClones(KisBaseRectsWalker &walker);
 
private:
    KisPaintDeviceSP m_currentProjection;
 
    KisPaintDeviceSP m_finalProjection;
 
    KisPaintDeviceSP m_cachedPaintDevice;
};
 
 
#endif /* __KIS_ASYNC_MERGER_H */