KisLayerStyleKnockoutBlower.h

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/*
 *  SPDX-FileCopyrightText: 2019 Dmitry Kazakov <dimula73@gmail.com>
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 */
#ifndef KISLAYERSTYLEKNOCKOUTBLOWER_H
#define KISLAYERSTYLEKNOCKOUTBLOWER_H
 
#include "kis_selection.h"
#include <QReadWriteLock>
 
class KisPainter;
 
 
class KRITAIMAGE_EXPORT KisLayerStyleKnockoutBlower
{
public:
    KisLayerStyleKnockoutBlower();
    KisLayerStyleKnockoutBlower(const KisLayerStyleKnockoutBlower &rhs);
 
    KisSelectionSP knockoutSelectionLazy();
 
    void setKnockoutSelection(KisSelectionSP selection);
    void resetKnockoutSelection();
 
 
    void apply(KisPainter *painter, KisPaintDeviceSP mergedStyle, const QRect &rect) const;
    bool isEmpty() const;
 
private:
    mutable QReadWriteLock m_lock;
    KisSelectionSP m_knockoutSelection;
};
 
#endif // KISLAYERSTYLEKNOCKOUTBLOWER_H