87 lines
2.1 KiB
C++
87 lines
2.1 KiB
C++
/*
|
|
* Copyright 2009 Mehmet Ali Akmanalp <makmanalp@wpi.edu>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU Library General Public License as
|
|
* published by the Free Software Foundation; either version 2, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this program; if not, write to the
|
|
* Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#include "fade.h"
|
|
|
|
#include <QRect>
|
|
#include <QtGui/QGraphicsOpacityEffect>
|
|
|
|
#include <kdebug.h>
|
|
|
|
namespace Plasma
|
|
{
|
|
|
|
class FadeAnimationPrivate
|
|
{
|
|
public:
|
|
FadeAnimationPrivate()
|
|
{
|
|
}
|
|
|
|
~FadeAnimationPrivate()
|
|
{
|
|
}
|
|
|
|
QGraphicsOpacityEffect *opacityEffect;
|
|
};
|
|
|
|
FadeAnimation::FadeAnimation(qreal factor)
|
|
: d(new FadeAnimationPrivate()),
|
|
m_animFactor(qBound(qreal(0.0), factor, qreal(1.0)))
|
|
{
|
|
}
|
|
|
|
FadeAnimation::~FadeAnimation()
|
|
{
|
|
delete d;
|
|
}
|
|
|
|
void FadeAnimation::setWidgetToAnimate(QGraphicsWidget *widget)
|
|
{
|
|
QGraphicsWidget *m_widget = widgetToAnimate();
|
|
if (m_widget) {
|
|
QGraphicsEffect *effect = m_widget->graphicsEffect();
|
|
if (effect && dynamic_cast<QGraphicsOpacityEffect *>(effect)) {
|
|
effect->deleteLater();
|
|
}
|
|
}
|
|
|
|
Animation::setWidgetToAnimate(widget);
|
|
|
|
d->opacityEffect = new QGraphicsOpacityEffect(widget);
|
|
widget->setGraphicsEffect(d->opacityEffect);
|
|
}
|
|
|
|
QAbstractAnimation* FadeAnimation::render(QObject* parent)
|
|
{
|
|
|
|
//create animation
|
|
QPropertyAnimation* anim = new QPropertyAnimation(d->opacityEffect, "opacity", parent);
|
|
anim->setStartValue(0);
|
|
anim->setEndValue(m_animFactor);
|
|
anim->setDuration(duration());
|
|
|
|
//QObject::connect(anim, SIGNAL(finished()), anim, SLOT(deleteLater()));
|
|
|
|
return anim;
|
|
}
|
|
|
|
} //namespace Plasma
|
|
|