showpaint.h

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/*
    KWin - the KDE window manager
    This file is part of the KDE project.
 
    SPDX-FileCopyrightText: 2007 Lubos Lunak <l.lunak@kde.org>
 
    SPDX-License-Identifier: GPL-2.0-or-later
*/
 
#pragma once
 
#include "effect/effect.h"
 
namespace KWin
{
 
class ShowPaintEffect : public Effect
{
    Q_OBJECT
 
public:
    ShowPaintEffect();
 
    void paintScreen(const RenderTarget &renderTarget, const RenderViewport &viewport, int mask, const QRegion &region, Output *screen) override;
    void paintWindow(const RenderTarget &renderTarget, const RenderViewport &viewport, EffectWindow *w, int mask, QRegion region, WindowPaintData &data) override;
 
    bool isActive() const override;
 
private Q_SLOTS:
    void toggle();
 
private:
    void paintGL(const QMatrix4x4 &projection, qreal scale);
    void paintQPainter();
 
    bool m_active = false;
    QRegion m_painted; // what's painted in one pass
    int m_colorIndex = 0;
};
 
} // namespace KWin