plasma-framework/animations/pulser_p.h
Adenilson Cavalcanti Da Silva 6265ebb629 We no longer need this to be a slot.
svn path=/trunk/KDE/kdelibs/; revision=1095302
2010-02-23 23:31:20 +00:00

111 lines
2.9 KiB
C++

/* Copyright (C) 2009 Adenilson Cavalcanti <cavalcantii@gmail.com>
*
* 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 Pulse effect.
*/
#ifndef PLASMA_ANIMATIONS_PULSER_P_H
#define PLASMA_ANIMATIONS_PULSER_P_H
#include <plasma/animations/animation.h>
#include <plasma/plasma_export.h>
namespace Plasma
{
class ShadowFake;
/**
* @class PulseAnimation plasma/animations/pulser_p.h
* @short Pulse effect
*
* Effect that pulses a shadow copy of any QGraphicsWidget making
* it more translucent and bigger along the time until it vanishes.
*/
class PulseAnimation : public Animation
{
Q_OBJECT
Q_PROPERTY(qreal targetScale READ targetScale WRITE setTargetScale)
public:
/** Default Constructor */
explicit PulseAnimation(QObject *parent = 0);
/** Destructor */
~PulseAnimation();
/** Pulse scale factor.
*
* How much the pulsed shadow will expand (the default is 1.5x the
* size of pulsed widget).
*
* @param scale Pulse scale value (should be bigger than 1.0).
*/
void setTargetScale(qreal scale);
/** Returns pulsed scale factor.
*
* The amount of pulsed shadow factor used (default is 1.5x the size
* of widget).
*/
qreal targetScale() const;
/**
* Resets the shadow widget to its initial state (full translucent
* and with same geometry as the target widget). It is executed
* when the animation is over.
*/
void resetPulser();
protected:
void updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState);
void updateCurrentTime(int currentTime);
void setCopy();
private:
/** Zvalue (tipically -1 than the target widget) */
qreal m_zvalue;
/** Original widget scale */
qreal m_scale;
/** Opacity of shadow widget (full translucent) */
qreal m_opacity;
/** Target scale of shadow widget (default is 1.5x the animated
* widget scale).
*/
qreal m_endScale;
/** The shadow copy (it really is a QGraphicsWidget with a pixmap
* copy of the original widget).
*/
QWeakPointer<ShadowFake> m_under;
};
}
#endif // PLASMA_ANIMATIONS_PULSER_P_H