snaphelper.h

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/*
    KWin - the KDE window manager
    This file is part of the KDE project.
 
    SPDX-FileCopyrightText: 2009 Lucas Murray <lmurray@undefinedfire.com>
    SPDX-FileCopyrightText: 2018 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
 
    SPDX-License-Identifier: GPL-2.0-or-later
*/
 
#pragma once
 
#include "effect/effect.h"
#include "effect/timeline.h"
 
namespace KWin
{
 
class SnapHelperEffect : public Effect
{
    Q_OBJECT
 
public:
    SnapHelperEffect();
    ~SnapHelperEffect() override;
 
    void reconfigure(ReconfigureFlags flags) override;
 
    void prePaintScreen(ScreenPrePaintData &data, std::chrono::milliseconds presentTime) override;
    void paintScreen(const RenderTarget &renderTarget, const RenderViewport &viewport, int mask, const QRegion &region, Output *screen) override;
    void postPaintScreen() override;
 
    bool isActive() const override;
 
private Q_SLOTS:
    void slotWindowAdded(EffectWindow *w);
    void slotWindowClosed(EffectWindow *w);
    void slotWindowStartUserMovedResized(EffectWindow *w);
    void slotWindowFinishUserMovedResized(EffectWindow *w);
    void slotWindowFrameGeometryChanged(EffectWindow *w, const QRectF &old);
 
private:
    QRectF m_geometry;
    EffectWindow *m_window = nullptr;
 
    struct Animation
    {
        bool active = false;
        TimeLine timeLine;
    };
 
    Animation m_animation;
};
 
} // namespace KWin