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/***************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (directui@nokia.com)
**
** This file is part of libmeegotouch.
**
** If you have questions regarding the use of this file, please contact
** Nokia at directui@nokia.com.
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation
** and appearing in the file LICENSE.LGPL included in the packaging
** of this file.
**
****************************************************************************/
#ifndef MLAYOUTANIMATION_H
#define MLAYOUTANIMATION_H
#include "manimation.h"
#include "mexport.h"
#include "mlayout.h"
class MLayoutAnimationPrivate;
/*!
* \class MLayoutAnimation
* \brief Animation interface for animating adding and removing of items and animating
* switching between policies in a MLayout.
*
* Note that the item to animate will only be inherited from QGraphicsWidget. Non-widgets are not animated.
*
* \section custom_animation How to write a custom animation
*/
class M_CORE_EXPORT MLayoutAnimation : public MAnimation
{
public:
/*!
* \brief Construct the layout animator.
*/
explicit MLayoutAnimation(MLayout *layout);
/*!
* \brief Destroys the layout animator.
*/
virtual ~MLayoutAnimation();
/*!
* \brief Return a pointer to the associated layout
*/
MLayout *layout() const;
virtual void itemRemovedFromLayout(int index) = 0;
virtual void itemAddedToLayout(int index) = 0;
virtual void animatedDeleteItem(int index) = 0;
virtual void setItemGeometry(int index, const QRectF &geometry) = 0;
virtual void hideItem(int index) = 0;
/*!
* \brief Return whether the animator is currently animating any items.
*/
bool isAnimating() const;
protected:
/*! \brief Hide the given item.
*
* Dervived classes should call this function to hide the given item, rather than
* calling QGraphicsItem::hide() on the item directly. */
void hideItemNow(QGraphicsWidget *item);
/*! \brief Show the given item if it was hidden by the layout.
*
* Dervived classes should call this function to show the given item, rather than
* calling QGraphicsItem::show() on the item directly. */
void showItemNow(QGraphicsWidget *item);
/** \internal
* Shared d_ptr setup constructor. */
explicit MLayoutAnimation(MLayoutAnimationPrivate &, MLayout *layout);
/** \internal_end */
MLayoutAnimationPrivate *const d_ptr;
private:
Q_DISABLE_COPY(MLayoutAnimation)
Q_DECLARE_PRIVATE(MLayoutAnimation)
};
#endif // Header Guard
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