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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 QDECLARATIVELISTMODEL_H
#define QDECLARATIVELISTMODEL_H
#include <qdeclarative.h>
#include <private/qdeclarativecustomparser_p.h>
#include <QtCore/QObject>
#include <QtCore/QStringList>
#include <QtCore/QHash>
#include <QtCore/QList>
#include <QtCore/QVariant>
#include "qlistmodelinterface_p.h"
#include <private/qv8engine_p.h>
#include <private/qpodvector_p.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class QDeclarativeListModelWorkerAgent;
class ListModel;
class ListLayout;
class Q_DECLARATIVE_PRIVATE_EXPORT QDeclarativeListModel : public QListModelInterface
{
Q_OBJECT
Q_PROPERTY(int count READ count NOTIFY countChanged)
Q_PROPERTY(bool dynamicRoles READ dynamicRoles WRITE setDynamicRoles)
public:
QDeclarativeListModel(QObject *parent=0);
~QDeclarativeListModel();
virtual QList<int> roles() const;
virtual QString toString(int role) const;
virtual int count() const;
virtual QVariant data(int index, int role) const;
Q_INVOKABLE void clear();
Q_INVOKABLE void remove(QDeclarativeV8Function *args);
Q_INVOKABLE void append(QDeclarativeV8Function *args);
Q_INVOKABLE void insert(QDeclarativeV8Function *args);
Q_INVOKABLE QDeclarativeV8Handle get(int index) const;
Q_INVOKABLE void set(int index, const QDeclarativeV8Handle &);
Q_INVOKABLE void setProperty(int index, const QString& property, const QVariant& value);
Q_INVOKABLE void move(int from, int to, int count);
Q_INVOKABLE void sync();
QDeclarativeListModelWorkerAgent *agent();
bool dynamicRoles() const { return m_dynamicRoles; }
void setDynamicRoles(bool enableDynamicRoles);
Q_SIGNALS:
void countChanged();
private:
friend class QDeclarativeListModelParser;
friend class QDeclarativeListModelWorkerAgent;
friend class ModelObject;
friend class ModelNodeMetaObject;
friend class ListModel;
friend class ListElement;
friend class DynamicRoleModelNode;
friend class DynamicRoleModelNodeMetaObject;
// Constructs a flat list model for a worker agent
QDeclarativeListModel(QDeclarativeListModel *orig, QDeclarativeListModelWorkerAgent *agent);
QDeclarativeListModel(const QDeclarativeListModel *owner, ListModel *data, QV8Engine *eng, QObject *parent=0);
QV8Engine *engine() const;
inline bool canMove(int from, int to, int n) const { return !(from+n > count() || to+n > count() || from < 0 || to < 0 || n < 0); }
QDeclarativeListModelWorkerAgent *m_agent;
mutable QV8Engine *m_engine;
bool m_mainThread;
bool m_primary;
bool m_dynamicRoles;
ListLayout *m_layout;
ListModel *m_listModel;
QVector<class DynamicRoleModelNode *> m_modelObjects;
QVector<QString> m_roles;
int m_uid;
struct ElementSync
{
ElementSync() : src(0), target(0) {}
DynamicRoleModelNode *src;
DynamicRoleModelNode *target;
};
int getUid() const { return m_uid; }
static void sync(QDeclarativeListModel *src, QDeclarativeListModel *target, QHash<int, QDeclarativeListModel *> *targetModelHash);
static QDeclarativeListModel *createWithOwner(QDeclarativeListModel *newOwner);
void emitItemsChanged(int index, int count, const QList<int> &roles);
void emitItemsRemoved(int index, int count);
void emitItemsInserted(int index, int count);
void emitItemsMoved(int from, int to, int n);
};
// ### FIXME
class QDeclarativeListElement : public QObject
{
Q_OBJECT
};
class QDeclarativeListModelParser : public QDeclarativeCustomParser
{
public:
QDeclarativeListModelParser() : QDeclarativeCustomParser(QDeclarativeCustomParser::AcceptsSignalHandlers) {}
QByteArray compile(const QList<QDeclarativeCustomParserProperty> &);
void setCustomData(QObject *, const QByteArray &);
private:
struct ListInstruction
{
enum { Push, Pop, Value, Set } type;
int dataIdx;
};
struct ListModelData
{
int dataOffset;
int instrCount;
ListInstruction *instructions() const;
};
bool compileProperty(const QDeclarativeCustomParserProperty &prop, QList<ListInstruction> &instr, QByteArray &data);
bool definesEmptyList(const QString &);
QString listElementTypeName;
struct DataStackElement
{
DataStackElement() : model(0), elementIndex(0) {}
QString name;
ListModel *model;
int elementIndex;
};
};
QT_END_NAMESPACE
QML_DECLARE_TYPE(QDeclarativeListModel)
QML_DECLARE_TYPE(QDeclarativeListElement)
QT_END_HEADER
#endif // QDECLARATIVELISTMODEL_H
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