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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMLSTATE_P_H
#define QMLSTATE_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qmlstate_p.h"
#include <private/qobject_p.h>
#include "qmlanimation_p_p.h"
#include "qmltransitionmanager_p_p.h"
QT_BEGIN_NAMESPACE
class SimpleAction
{
public:
enum State { StartState, EndState };
SimpleAction(const Action &a, State state = StartState)
{
property = a.property;
specifiedObject = a.specifiedObject;
specifiedProperty = a.specifiedProperty;
event = a.event;
if (state == StartState) {
value = a.fromValue;
binding = property.binding();
reverseEvent = true;
} else {
value = a.toValue;
binding = a.toBinding;
reverseEvent = false;
}
}
QmlMetaProperty property;
QVariant value;
QmlAbstractBinding *binding;
QObject *specifiedObject;
QString specifiedProperty;
ActionEvent *event;
bool reverseEvent;
};
class QmlStatePrivate : public QObjectPrivate
{
Q_DECLARE_PUBLIC(QmlState)
public:
QmlStatePrivate()
: when(0), inState(false), group(0) {}
typedef QList<SimpleAction> SimpleActionList;
QString name;
QmlBinding *when;
class OperationList;
struct OperationGuard : public QGuard<QmlStateOperation>
{
OperationGuard(QObject *obj, OperationList *l) : list(l) { (QGuard<QObject>&)*this = obj; }
OperationList *list;
void objectDestroyed(QmlStateOperation *) {
// we assume priv will always be destroyed after objectDestroyed calls
list->removeOne(*this);
}
};
typedef QList<OperationGuard> GuardedOpList;
class OperationList : public GuardedOpList, public QmlList<QmlStateOperation*>
{
public:
virtual void append(QmlStateOperation* v) { GuardedOpList::append(OperationGuard(v, this)); }
virtual void insert(int i, QmlStateOperation* v) { GuardedOpList::insert(i, OperationGuard(v, this)); }
virtual void clear() { GuardedOpList::clear(); }
virtual QmlStateOperation* at(int i) const { return GuardedOpList::at(i); }
virtual void removeAt(int i) { GuardedOpList::removeAt(i); }
virtual int count() const { return GuardedOpList::count(); }
};
OperationList operations;
QmlTransitionManager transitionManager;
SimpleActionList revertList;
QList<QmlMetaProperty> reverting;
QString extends;
mutable bool inState;
QmlStateGroup *group;
QmlStateOperation::ActionList generateActionList(QmlStateGroup *) const;
void complete();
};
QT_END_NAMESPACE
#endif // QMLSTATE_P_H
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