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64 lines
2 KiB
C++
64 lines
2 KiB
C++
/*
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* Copyright © 2008 Fredrik Höglund <fredrik@kde.org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "curtaineffect.h"
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#include "curtaineffect.moc"
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#include <QApplication>
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#include <QDesktopWidget>
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#include <QWidget>
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#include <QImage>
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#include <QPixmap>
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#include <QPainter>
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#include <QTimer>
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#include "config-workspace.h"
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#include <qimageblitz.h>
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CurtainEffect::CurtainEffect(QWidget *parent, QPixmap *pixmap)
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: LogoutEffect(parent, pixmap)
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{
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}
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void CurtainEffect::start()
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{
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currentY = 0;
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nextFrame();
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emit initialized();
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}
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void CurtainEffect::nextFrame()
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{
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QImage image = QPixmap::grabWindow(QApplication::desktop()->winId(), 0, currentY,
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parent->width(), 10 ).toImage();
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Blitz::intensity(image, -0.4);
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Blitz::grayscale(image);
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QPainter painter(pixmap);
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painter.drawImage(0, currentY, image);
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painter.end();
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currentY += 10;
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parent->update(0, 0, parent->width(), currentY);
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QTimer::singleShot(5, this, SLOT(nextFrame()));
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}
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