112 lines
3.4 KiB
C++
112 lines
3.4 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2009 Lucas Murray <lmurray@undefinedfire.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#include "fadedesktop.h"
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#include <math.h>
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namespace KWin
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{
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KWIN_EFFECT(fadedesktop, FadeDesktopEffect)
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FadeDesktopEffect::FadeDesktopEffect()
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: m_fading(false)
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{
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m_timeline.setCurveShape(TimeLine::LinearCurve);
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reconfigure(ReconfigureAll);
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}
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void FadeDesktopEffect::reconfigure(ReconfigureFlags)
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{
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m_timeline.setDuration(animationTime(250));
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}
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void FadeDesktopEffect::prePaintScreen(ScreenPrePaintData &data, int time)
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{
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if (m_fading) {
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m_timeline.addTime(time);
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// PAINT_SCREEN_BACKGROUND_FIRST is needed because screen will be actually painted more than once,
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// so with normal screen painting second screen paint would erase parts of the first paint
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if (m_timeline.value() != 1.0)
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data.mask |= PAINT_SCREEN_TRANSFORMED | PAINT_SCREEN_BACKGROUND_FIRST;
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else {
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m_fading = false;
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m_timeline.setProgress(0.0);
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foreach (EffectWindow * w, effects->stackingOrder()) {
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w->setData(WindowForceBlurRole, QVariant(false));
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}
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effects->setActiveFullScreenEffect(NULL);
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}
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}
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effects->prePaintScreen(data, time);
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}
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void FadeDesktopEffect::postPaintScreen()
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{
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if (m_fading)
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effects->addRepaintFull();
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effects->postPaintScreen();
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}
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void FadeDesktopEffect::prePaintWindow(EffectWindow *w, WindowPrePaintData &data, int time)
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{
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if (m_fading) {
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if (w->isOnDesktop(m_oldDesktop))
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w->enablePainting(EffectWindow::PAINT_DISABLED_BY_DESKTOP);
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data.setTranslucent();
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}
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effects->prePaintWindow(w, data, time);
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}
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void FadeDesktopEffect::paintWindow(EffectWindow *w, int mask, QRegion region, WindowPaintData &data)
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{
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if (m_fading && !(w->isOnCurrentDesktop() && w->isOnDesktop(m_oldDesktop))) {
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if (w->isOnDesktop(m_oldDesktop))
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data.opacity *= 1 - m_timeline.value();
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else
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data.opacity *= m_timeline.value();
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}
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effects->paintWindow(w, mask, region, data);
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}
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void FadeDesktopEffect::desktopChanged(int old)
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{
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if (effects->activeFullScreenEffect() && effects->activeFullScreenEffect() != this)
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return;
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// TODO: Fix glitches when fading while a previous fade is still happening
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effects->setActiveFullScreenEffect(this);
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m_fading = true;
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m_timeline.setProgress(0);
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m_oldDesktop = old;
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foreach (EffectWindow * w, effects->stackingOrder()) {
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w->setData(WindowForceBlurRole, QVariant(true));
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}
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effects->addRepaintFull();
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}
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} // namespace
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#include "fadedesktop.moc"
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