kis_ls_drop_shadow_filter.h

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/*
 *  SPDX-FileCopyrightText: 2014 Dmitry Kazakov <dimula73@gmail.com>
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#ifndef KIS_LS_DROP_SHADOW_FILTER_H
#define KIS_LS_DROP_SHADOW_FILTER_H
 
 
#include "kis_layer_style_filter.h"
#include <kritaimage_export.h>
 
class psd_layer_effects_shadow_base;
 
 
class KRITAIMAGE_EXPORT KisLsDropShadowFilter : public KisLayerStyleFilter
{
public:
 
    enum Mode {
        DropShadow,
        InnerShadow,
        OuterGlow,
        InnerGlow
    };
 
    KisLsDropShadowFilter(Mode mode = DropShadow);
 
    KisLayerStyleFilter* clone() const override;
 
    void processDirectly(KisPaintDeviceSP src,
                         KisMultipleProjection *dst,
                         KisLayerStyleKnockoutBlower *blower,
                         const QRect &applyRect,
                         KisPSDLayerStyleSP style,
                         KisLayerStyleFilterEnvironment *env) const override;
 
    QRect neededRect(const QRect & rect, KisPSDLayerStyleSP style, KisLayerStyleFilterEnvironment *env) const override;
    QRect changedRect(const QRect & rect, KisPSDLayerStyleSP style, KisLayerStyleFilterEnvironment *env) const override;
 
private:
    KisLsDropShadowFilter(const KisLsDropShadowFilter &rhs);
    const psd_layer_effects_shadow_base* getShadowStruct(KisPSDLayerStyleSP style) const;
 
    void applyDropShadow(KisPaintDeviceSP srcDevice,
                         KisMultipleProjection *dst,
                         const QRect &applyRect,
                         const psd_layer_effects_context *context,
                         const psd_layer_effects_shadow_base *shadow, KisResourcesInterfaceSP resourcesInterface,
                         KisLayerStyleFilterEnvironment *env) const;
 
private:
    const Mode m_mode;
};
 
#endif