kwin/effects/showpaint/showpaint.h

/********************************************************************
 KWin - the KDE window manager
 This file is part of the KDE project.

Copyright (C) 2007 Lubos Lunak <l.lunak@kde.org>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/

#ifndef KWIN_SHOWPAINT_H
#define KWIN_SHOWPAINT_H

#include <kwineffects.h>

namespace KWin
{

class ShowPaintEffect : public Effect
{
    Q_OBJECT

public:
    ShowPaintEffect();

    void paintScreen(int mask, QRegion region, ScreenPaintData &data) override;
    void paintWindow(EffectWindow *w, int mask, QRegion region, WindowPaintData &data) override;

    bool isActive() const override;

private Q_SLOTS:
    void toggle();

private:
    void paintGL(const QMatrix4x4 &projection);
    void paintXrender();
    void paintQPainter();

    bool m_active = false;
    QRegion m_painted; // what's painted in one pass
    int m_colorIndex = 0;
};

} // namespace KWin

#endif