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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used 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. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QQUICKITEMVIEWTRANSITION_P_P_H
#define QQUICKITEMVIEWTRANSITION_P_P_H
#include <private/qdeclarativetransitionmanager_p_p.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Declarative)
class QQuickItem;
class QQuickViewItem;
class QQuickItemViewTransitionJob;
class QQuickItemViewTransitionChangeListener
{
public:
QQuickItemViewTransitionChangeListener() {}
virtual ~QQuickItemViewTransitionChangeListener() {}
virtual void viewItemTransitionFinished(QQuickViewItem *item) = 0;
};
class QQuickItemViewTransitioner
{
public:
enum TransitionType {
NoTransition,
PopulateTransition,
AddTransition,
MoveTransition,
RemoveTransition
};
QQuickItemViewTransitioner();
virtual ~QQuickItemViewTransitioner();
bool canTransition(QQuickItemViewTransitioner::TransitionType type, bool asTarget) const;
void transitionNextReposition(QQuickViewItem *item, QQuickItemViewTransitioner::TransitionType type, bool isTarget);
QDeclarativeTransition *transitionObject(QQuickItemViewTransitioner::TransitionType type, bool asTarget);
const QList<int> &targetIndexes(QQuickItemViewTransitioner::TransitionType type) const;
const QList<QObject *> &targetItems(QQuickItemViewTransitioner::TransitionType type) const;
inline void setPopulateTransitionEnabled(bool b) { usePopulateTransition = b; }
inline void setChangeListener(QQuickItemViewTransitionChangeListener *obj) { changeListener = obj; }
QSet<QQuickItemViewTransitionJob *> runningJobs;
QList<int> addTransitionIndexes;
QList<int> moveTransitionIndexes;
QList<int> removeTransitionIndexes;
QList<QObject *> addTransitionTargets;
QList<QObject *> moveTransitionTargets;
QList<QObject *> removeTransitionTargets;
QDeclarativeTransition *populateTransition;
QDeclarativeTransition *addTransition;
QDeclarativeTransition *addDisplacedTransition;
QDeclarativeTransition *moveTransition;
QDeclarativeTransition *moveDisplacedTransition;
QDeclarativeTransition *removeTransition;
QDeclarativeTransition *removeDisplacedTransition;
QDeclarativeTransition *displacedTransition;
private:
friend class QQuickItemViewTransitionJob;
QQuickItemViewTransitionChangeListener *changeListener;
bool usePopulateTransition;
void finishedTransition(QQuickItemViewTransitionJob *job, QQuickViewItem *item);
};
/*
An item in a view, that can be transitioned using QQuickViewTransitionJob.
*/
class QQuickViewItem
{
public:
QQuickViewItem(QQuickItem *i);
virtual ~QQuickViewItem();
qreal itemX() const;
qreal itemY() const;
void moveTo(const QPointF &pos);
void setVisible(bool visible);
bool transitionScheduledOrRunning() const;
bool transitionRunning() const;
bool isPendingRemoval() const;
bool prepareTransition(const QRectF &viewBounds);
void startTransition(QQuickItemViewTransitioner *transitioner);
void stopTransition();
QPointF nextTransitionTo;
QQuickItem *item;
QQuickItemViewTransitionJob *transition;
QQuickItemViewTransitioner::TransitionType nextTransitionType;
int index;
bool isTransitionTarget;
bool nextTransitionToSet;
private:
friend class QQuickItemViewTransitioner;
friend class QQuickItemViewTransitionJob;
void setNextTransition(QQuickItemViewTransitioner::TransitionType, bool isTargetItem);
bool transitionWillChangePosition() const;
void finishedTransition();
void resetTransitionData();
};
class QQuickViewTransitionAttached : public QObject
{
Q_OBJECT
Q_PROPERTY(int index READ index NOTIFY indexChanged)
Q_PROPERTY(QQuickItem* item READ item NOTIFY itemChanged)
Q_PROPERTY(QPointF destination READ destination NOTIFY destinationChanged)
Q_PROPERTY(QList<int> targetIndexes READ targetIndexes NOTIFY targetIndexesChanged)
Q_PROPERTY(QDeclarativeListProperty<QObject> targetItems READ targetItems NOTIFY targetItemsChanged)
public:
QQuickViewTransitionAttached(QObject *parent);
int index() const { return m_index; }
QQuickItem *item() const { return m_item; }
QPointF destination() const { return m_destination; }
QList<int> targetIndexes() const { return m_targetIndexes; }
QDeclarativeListProperty<QObject> targetItems();
static QQuickViewTransitionAttached *qmlAttachedProperties(QObject *);
signals:
void indexChanged();
void itemChanged();
void destinationChanged();
void targetIndexesChanged();
void targetItemsChanged();
private:
friend class QQuickItemViewTransitionJob;
QPointF m_destination;
QList<int> m_targetIndexes;
QList<QObject *> m_targetItems;
QQuickItem *m_item;
int m_index;
};
QT_END_NAMESPACE
QML_DECLARE_TYPE(QQuickViewTransitionAttached)
QML_DECLARE_TYPEINFO(QQuickViewTransitionAttached, QML_HAS_ATTACHED_PROPERTIES)
QT_END_HEADER
#endif // QQUICKITEMVIEWTRANSITION_P_P_H
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