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/***************************************************************************
* Copyright (C) 2011 by Peter Penz <[email protected]> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, 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 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 *
***************************************************************************/
#ifndef KITEMLISTVIEWANIMATION_H
#define KITEMLISTVIEWANIMATION_H
#include "dolphin_export.h"
#include <QHash>
#include <QObject>
#include <QVariant>
class KItemListView;
class QGraphicsWidget;
class QPropertyAnimation;
/**
* @brief Internal helper class for KItemListView to animate the items.
*
* Supports item animations for moving, creating, deleting and resizing
* an item. Several applications can be applied to one item in parallel.
*/
class DOLPHIN_EXPORT KItemListViewAnimation : public QObject
{
Q_OBJECT
public:
enum AnimationType {
MovingAnimation,
CreateAnimation,
DeleteAnimation,
ResizeAnimation
};
KItemListViewAnimation(QObject* parent = 0);
virtual ~KItemListViewAnimation();
void setScrollOrientation(Qt::Orientation orientation);
Qt::Orientation scrollOrientation() const;
void setScrollOffset(qreal scrollOffset);
qreal scrollOffset() const;
/**
* Starts the animation of the type \a type for the widget \a widget. If an animation
* of the type is already running, this animation will be stopped before starting
* the new animation.
*/
void start(QGraphicsWidget* widget, AnimationType type, const QVariant& endValue = QVariant());
/**
* Stops the animation of the type \a type for the widget \a widget.
*/
void stop(QGraphicsWidget* widget, AnimationType type);
/**
* Stops all animations that have been applied to the widget \a widget.
*/
void stop(QGraphicsWidget* widget);
/**
* @return True if the animation of the type \a type has been started
* for the widget \a widget..
*/
bool isStarted(QGraphicsWidget *widget, AnimationType type) const;
/**
* @return True if any animation has been started for the widget.
*/
bool isStarted(QGraphicsWidget* widget) const;
signals:
void finished(QGraphicsWidget* widget, KItemListViewAnimation::AnimationType type);
private slots:
void slotFinished();
private:
enum { AnimationTypeCount = 4 };
Qt::Orientation m_scrollOrientation;
qreal m_scrollOffset;
QHash<QGraphicsWidget*, QPropertyAnimation*> m_animation[AnimationTypeCount];
};
#endif
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