102 lines
3.3 KiB
C++
102 lines
3.3 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) 2006 Lubos Lunak <l.lunak@kde.org>
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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 "scalein.h"
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#include <QtCore/QTimeLine>
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#include <QtGui/QVector2D>
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namespace KWin
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{
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KWIN_EFFECT(scalein, ScaleInEffect)
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ScaleInEffect::ScaleInEffect()
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: Effect()
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{
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connect(effects, SIGNAL(windowAdded(KWin::EffectWindow*)), this, SLOT(slotWindowAdded(KWin::EffectWindow*)));
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connect(effects, SIGNAL(windowClosed(KWin::EffectWindow*)), this, SLOT(slotWindowClosed(KWin::EffectWindow*)));
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}
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void ScaleInEffect::prePaintScreen(ScreenPrePaintData& data, int time)
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{
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if (!mTimeLineWindows.isEmpty())
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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 ScaleInEffect::prePaintWindow(EffectWindow* w, WindowPrePaintData& data, int time)
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{
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if (mTimeLineWindows.contains(w)) {
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mTimeLineWindows[ w ]->setCurveShape(QTimeLine::EaseInOutCurve);
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mTimeLineWindows[ w ]->setCurrentTime(mTimeLineWindows[ w ]->currentTime() + time);
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if (mTimeLineWindows[ w ]->currentValue() < 1)
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data.setTransformed();
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else
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delete mTimeLineWindows.take(w);
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}
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effects->prePaintWindow(w, data, time);
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}
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void ScaleInEffect::paintWindow(EffectWindow* w, int mask, QRegion region, WindowPaintData& data)
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{
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if (mTimeLineWindows.contains(w) && isScaleWindow(w)) {
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const qreal value = mTimeLineWindows[ w ]->currentValue();
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data.opacity *= value;
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data *= QVector2D(value, value);
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data += QPoint(int(w->width() / 2 * (1 - value)), int(w->height() / 2 * (1 - value)));
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}
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effects->paintWindow(w, mask, region, data);
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}
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bool ScaleInEffect::isScaleWindow(EffectWindow* w)
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{
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const void* e = w->data(WindowAddedGrabRole).value<void*>();
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// TODO: isSpecialWindow is rather generic, maybe tell windowtypes separately?
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if (w->isPopupMenu() || w->isSpecialWindow() || w->isUtility() || (e && e != this))
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return false;
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return true;
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}
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void ScaleInEffect::postPaintWindow(EffectWindow* w)
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{
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if (mTimeLineWindows.contains(w))
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w->addRepaintFull(); // trigger next animation repaint
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effects->postPaintWindow(w);
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}
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void ScaleInEffect::slotWindowAdded(EffectWindow* c)
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{
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if (c->isOnCurrentDesktop()) {
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mTimeLineWindows.insert(c, new QTimeLine(animationTime(250), this));
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c->addRepaintFull();
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}
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}
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void ScaleInEffect::slotWindowClosed(EffectWindow* c)
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{
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delete mTimeLineWindows.take(c);
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}
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bool ScaleInEffect::isActive() const
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{
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return !mTimeLineWindows.isEmpty();
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}
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} // namespace
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