plasma-framework/animations/fade_p.h
Marco Martin 47a6082bf5 use opacity, not a qgraphicseffect, since an item can't have more than
one effect and the opacity property of the widget would lie.
if there will be graphics glitches it would be a qt problem that should
be resolved, not by a workaround

svn path=/trunk/KDE/kdelibs/; revision=1047550
2009-11-11 12:04:58 +00:00

71 lines
1.9 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.
*/
/**
* @file This file contains the definition for the Fade effect.
*/
#ifndef PLASMA_ANIMATIONS_FADE_H
#define PLASMA_ANIMATIONS_FADE_H
#include <plasma/animations/animation.h>
#include <plasma/plasma_export.h>
namespace Plasma
{
class FadeAnimationPrivate;
/**
* @class Fade plasma/animations/fade.h
* @short Fade effect
*
* Effect that slowly transforms the opacity of the object to the given value.
*/
class FadeAnimation : public Animation
{
Q_OBJECT
Q_PROPERTY(qreal startOpacity READ startOpacity WRITE setStartOpacity)
Q_PROPERTY(qreal targetOpacity READ targetOpacity WRITE setTargetOpacity)
public:
FadeAnimation(QObject *parent = 0);
virtual ~FadeAnimation();
qreal startOpacity() const;
void setStartOpacity(qreal);
qreal targetOpacity() const;
void setTargetOpacity(qreal);
void setWidgetToAnimate(QGraphicsWidget *widget);
protected:
virtual QAbstractAnimation* render(QObject* parent = 0);
private:
QWeakPointer<QGraphicsWidget> m_widget;
qreal m_startOpacity;
qreal m_targetOpacity;
};
}
#endif