kwin/effects/_test/test_thumbnail.cpp

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

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

You can Freely distribute this program under the GNU General Public
License. See the file "COPYING" for the exact licensing terms.
******************************************************************/

/*

 Testing of painting a window more than once. The active window is painted
 once more as a thumbnail in the bottom-right corner of the screen.

*/

#include "test_thumbnail.h"

namespace KWin
{

KWIN_EFFECT(test_thumbnail, TestThumbnailEffect)

TestThumbnailEffect::TestThumbnailEffect()
    : active_window(NULL)
{
}

void TestThumbnailEffect::paintScreen(int mask, QRegion region, ScreenPaintData& data)
{
    effects->paintScreen(mask, region, data);
    if (active_window != NULL && region.contains(thumbnailRect())) {
        WindowPaintData data(active_window);
        QRect region;
        setPositionTransformations(data, region, active_window, thumbnailRect(), Qt::KeepAspectRatio);
        effects->drawWindow(active_window,
                            PAINT_WINDOW_OPAQUE | PAINT_WINDOW_TRANSLUCENT | PAINT_WINDOW_TRANSFORMED,
                            region, data);
    }
}

void TestThumbnailEffect::windowActivated(EffectWindow* act)
{
    active_window = act;
    effects->addRepaint(thumbnailRect());
}

void TestThumbnailEffect::windowDamaged(EffectWindow* w, const QRect&)
{
    if (w == active_window)
        effects->addRepaint(thumbnailRect());
    // TODO maybe just the relevant part of the area should be repainted?
}

void TestThumbnailEffect::windowGeometryShapeChanged(EffectWindow* w, const QRect& old)
{
    if (w == active_window && w->size() != old.size())
        effects->addRepaint(thumbnailRect());
}

void TestThumbnailEffect::windowClosed(EffectWindow* w)
{
    if (w == active_window) {
        active_window = NULL;
        effects->addRepaint(thumbnailRect());
    }
}

QRect TestThumbnailEffect::thumbnailRect() const
{
    return QRect(displayWidth() - 100, displayHeight() - 100, 100, 100);
}

} // namespace