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Viewing changes to kwin/effects/minimizeanimation/minimizeanimation.cpp

  • Committer: Bazaar Package Importer
  • Author(s): Michał Zając
  • Date: 2011-07-09 08:31:15 UTC
  • Revision ID: james.westby@ubuntu.com-20110709083115-ohyxn6z93mily9fc
Tags: upstream-4.6.90
Import upstream version 4.6.90

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kwin/effects/minimizeanimation/minimizeanimation.cpp
 
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/********************************************************************
 
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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) 2007 Rivo Laks <rivolaks@hot.ee>
 
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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 "minimizeanimation.h"
 
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#include <QtCore/QTimeLine>
 
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namespace KWin
 
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{
 
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KWIN_EFFECT(minimizeanimation, MinimizeAnimationEffect)
 
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MinimizeAnimationEffect::MinimizeAnimationEffect()
 
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{
 
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    mActiveAnimations = 0;
 
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    connect(effects, SIGNAL(windowDeleted(EffectWindow*)), this, SLOT(slotWindowDeleted(EffectWindow*)));
 
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    connect(effects, SIGNAL(windowMinimized(EffectWindow*)), this, SLOT(slotWindowMinimized(EffectWindow*)));
 
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    connect(effects, SIGNAL(windowUnminimized(EffectWindow*)), this, SLOT(slotWindowUnminimized(EffectWindow*)));
 
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}
 
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void MinimizeAnimationEffect::prePaintScreen(ScreenPrePaintData& data, int time)
 
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{
 
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    QHash< EffectWindow*, QTimeLine* >::iterator entry = mTimeLineWindows.begin();
 
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    bool erase = false;
 
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    while (entry != mTimeLineWindows.end()) {
 
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        QTimeLine *timeline = entry.value();
 
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        if (entry.key()->isMinimized()) {
 
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            timeline->setCurrentTime(timeline->currentTime() + time);
 
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            erase = (timeline->currentValue() >= 1.0f);
 
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        } else {
 
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            timeline->setCurrentTime(timeline->currentTime() - time);
 
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            erase = (timeline->currentValue() <= 0.0f);
 
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        }
 
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        if (erase) {
 
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            delete timeline;
 
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            entry = mTimeLineWindows.erase(entry);
 
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        } else
 
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            ++entry;
 
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    }
 
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    mActiveAnimations = mTimeLineWindows.count();
 
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    if (mActiveAnimations > 0)
 
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        // We need to mark the screen windows as transformed. Otherwise the
 
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        //  whole screen won't be repainted, resulting in artefacts
 
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        data.mask |= PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS;
 
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    effects->prePaintScreen(data, time);
 
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}
 
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void MinimizeAnimationEffect::prePaintWindow(EffectWindow* w, WindowPrePaintData& data, int time)
 
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{
 
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    // Schedule window for transformation if the animation is still in
 
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    //  progress
 
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    if (mTimeLineWindows.contains(w)) {
 
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        // We'll transform this window
 
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        data.setTransformed();
 
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        w->enablePainting(EffectWindow::PAINT_DISABLED_BY_MINIMIZE);
 
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    }
 
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    effects->prePaintWindow(w, data, time);
 
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}
 
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void MinimizeAnimationEffect::paintWindow(EffectWindow* w, int mask, QRegion region, WindowPaintData& data)
 
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{
 
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    QHash< EffectWindow*, QTimeLine* >::const_iterator entry = mTimeLineWindows.constFind(w);
 
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    if (entry != mTimeLineWindows.constEnd()) {
 
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        // 0 = not minimized, 1 = fully minimized
 
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        double progress = entry.value()->currentValue();
 
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        QRect geo = w->geometry();
 
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        QRect icon = w->iconGeometry();
 
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        // If there's no icon geometry, minimize to the center of the screen
 
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        if (!icon.isValid())
 
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            icon = QRect(displayWidth() / 2, displayHeight() / 2, 0, 0);
 
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        data.xScale *= interpolate(1.0, icon.width() / (double)geo.width(), progress);
 
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        data.yScale *= interpolate(1.0, icon.height() / (double)geo.height(), progress);
 
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        data.xTranslate = (int)interpolate(data.xTranslate, icon.x() - geo.x(), progress);
 
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        data.yTranslate = (int)interpolate(data.yTranslate, icon.y() - geo.y(), progress);
 
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        data.opacity *= 0.1 + (1 - progress) * 0.9;
 
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    }
 
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    // Call the next effect.
 
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    effects->paintWindow(w, mask, region, data);
 
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}
 
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void MinimizeAnimationEffect::postPaintScreen()
 
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{
 
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    if (mActiveAnimations > 0)
 
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        // Repaint the workspace so that everything would be repainted next time
 
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        effects->addRepaintFull();
 
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    mActiveAnimations = mTimeLineWindows.count();
 
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    // Call the next effect.
 
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    effects->postPaintScreen();
 
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}
 
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void MinimizeAnimationEffect::slotWindowDeleted(EffectWindow* w)
 
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{
 
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    delete mTimeLineWindows.take(w);
 
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}
 
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void MinimizeAnimationEffect::slotWindowMinimized(EffectWindow* w)
 
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{
 
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    if (effects->activeFullScreenEffect())
 
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        return;
 
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    QTimeLine *timeline;
 
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    if (mTimeLineWindows.contains(w)) {
 
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        timeline = mTimeLineWindows[w];
 
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    } else {
 
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        timeline = new QTimeLine(animationTime(250), this);
 
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        mTimeLineWindows.insert(w, timeline);
 
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    }
 
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    timeline->setCurveShape(QTimeLine::EaseInCurve);
 
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    timeline->setCurrentTime(0.0);
 
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}
 
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void MinimizeAnimationEffect::slotWindowUnminimized(EffectWindow* w)
 
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{
 
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    if (effects->activeFullScreenEffect())
 
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        return;
 
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    QTimeLine *timeline;
 
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    if (mTimeLineWindows.contains(w)) {
 
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        timeline = mTimeLineWindows[w];
 
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    } else {
 
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        timeline = new QTimeLine(animationTime(250), this);
 
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        mTimeLineWindows.insert(w, timeline);
 
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    }
 
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    timeline->setCurveShape(QTimeLine::EaseInOutCurve);
 
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    timeline->setCurrentTime(timeline->duration());
 
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}
 
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} // namespace
 
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