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/****************************************************************************
**
** Copyright (C) 2010 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 QDECLARATIVESTATE_P_H
#define QDECLARATIVESTATE_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 "qdeclarativestate_p.h"
#include "qdeclarativeanimation_p_p.h"
#include "qdeclarativetransitionmanager_p_p.h"
#include <qdeclarativemetaproperty_p.h>
#include <qdeclarativeguard_p.h>
#include <private/qobject_p.h>
QT_BEGIN_NAMESPACE
class QDeclarativeSimpleAction
{
public:
enum State { StartState, EndState };
QDeclarativeSimpleAction(const QDeclarativeAction &a, State state = StartState)
{
property = a.property;
specifiedObject = a.specifiedObject;
specifiedProperty = a.specifiedProperty;
event = a.event;
if (state == StartState) {
value = a.fromValue;
binding = QDeclarativeMetaPropertyPrivate::binding(property);
reverseEvent = true;
} else {
value = a.toValue;
binding = a.toBinding;
reverseEvent = false;
}
}
QDeclarativeMetaProperty property;
QVariant value;
QDeclarativeAbstractBinding *binding;
QObject *specifiedObject;
QString specifiedProperty;
QDeclarativeActionEvent *event;
bool reverseEvent;
};
class QDeclarativeStatePrivate : public QObjectPrivate
{
Q_DECLARE_PUBLIC(QDeclarativeState)
public:
QDeclarativeStatePrivate()
: when(0), inState(false), group(0) {}
typedef QList<QDeclarativeSimpleAction> SimpleActionList;
QString name;
QDeclarativeBinding *when;
struct OperationGuard : public QDeclarativeGuard<QDeclarativeStateOperation>
{
OperationGuard(QObject *obj, QList<OperationGuard> *l) : list(l) { (QDeclarativeGuard<QObject>&)*this = obj; }
QList<OperationGuard> *list;
void objectDestroyed(QDeclarativeStateOperation *) {
// we assume priv will always be destroyed after objectDestroyed calls
list->removeOne(*this);
}
};
QList<OperationGuard> operations;
static void operations_append(QDeclarativeListProperty<QDeclarativeStateOperation> *prop, QDeclarativeStateOperation *op) {
QList<OperationGuard> *list = static_cast<QList<OperationGuard> *>(prop->data);
list->append(OperationGuard(op, list));
}
static void operations_clear(QDeclarativeListProperty<QDeclarativeStateOperation> *prop) {
QList<OperationGuard> *list = static_cast<QList<OperationGuard> *>(prop->data);
list->clear();
}
static int operations_count(QDeclarativeListProperty<QDeclarativeStateOperation> *prop) {
QList<OperationGuard> *list = static_cast<QList<OperationGuard> *>(prop->data);
return list->count();
}
static QDeclarativeStateOperation *operations_at(QDeclarativeListProperty<QDeclarativeStateOperation> *prop, int index) {
QList<OperationGuard> *list = static_cast<QList<OperationGuard> *>(prop->data);
return list->at(index);
}
QDeclarativeTransitionManager transitionManager;
SimpleActionList revertList;
QList<QDeclarativeMetaProperty> reverting;
QString extends;
mutable bool inState;
QDeclarativeStateGroup *group;
QDeclarativeStateOperation::ActionList generateActionList(QDeclarativeStateGroup *) const;
void complete();
};
QT_END_NAMESPACE
#endif // QDECLARATIVESTATE_P_H
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