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112 lines
3.5 KiB
112 lines
3.5 KiB
/******************************************************************** |
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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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connect(effects, SIGNAL(desktopChanged(int,int)), this, SLOT(slotDesktopChanged(int))); |
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m_timeline.setCurveShape(QTimeLine::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.setCurrentTime(m_timeline.currentTime() + 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.currentValue() != 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.setCurrentTime(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.currentValue(); |
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else |
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data.opacity *= m_timeline.currentValue(); |
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} |
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effects->paintWindow(w, mask, region, data); |
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} |
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void FadeDesktopEffect::slotDesktopChanged(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.setCurrentTime(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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