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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QFXVISUALDATAMODEL_H
#define QFXVISUALDATAMODEL_H
#include <QtCore/qobject.h>
#include <QtCore/qabstractitemmodel.h>
#include <QtDeclarative/qml.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Declarative)
/*****************************************************************************
*****************************************************************************
XXX Experimental
*****************************************************************************
*****************************************************************************/
class QFxItem;
class QmlComponent;
class QmlPackage;
class QFxVisualDataModelPrivate;
class Q_DECLARATIVE_EXPORT QFxVisualModel : public QObject
{
Q_OBJECT
Q_PROPERTY(int count READ count NOTIFY countChanged)
public:
QFxVisualModel() {}
virtual ~QFxVisualModel() {}
enum ReleaseFlag { Referenced = 0x01, Destroyed = 0x02 };
Q_DECLARE_FLAGS(ReleaseFlags, ReleaseFlag)
virtual int count() const = 0;
virtual bool isValid() const = 0;
virtual QFxItem *item(int index, bool complete=true) = 0;
virtual ReleaseFlags release(QFxItem *item) = 0;
virtual void completeItem() = 0;
virtual QVariant evaluate(int index, const QString &expression, QObject *objectContext) = 0;
virtual int indexOf(QFxItem *item, QObject *objectContext) const = 0;
Q_SIGNALS:
void countChanged();
void itemsInserted(int index, int count);
void itemsRemoved(int index, int count);
void itemsMoved(int from, int to, int count);
void createdItem(int index, QFxItem *item);
void destroyingItem(QFxItem *item);
protected:
QFxVisualModel(QObjectPrivate &dd, QObject *parent = 0)
: QObject(dd, parent) {}
private:
Q_DISABLE_COPY(QFxVisualModel)
};
class QFxVisualItemModelAttached;
class QFxVisualItemModelPrivate;
class Q_DECLARATIVE_EXPORT QFxVisualItemModel : public QFxVisualModel
{
Q_OBJECT
Q_DECLARE_PRIVATE(QFxVisualItemModel)
Q_PROPERTY(QmlList<QFxItem *>* children READ children DESIGNABLE false)
Q_CLASSINFO("DefaultProperty", "children")
public:
QFxVisualItemModel();
virtual ~QFxVisualItemModel() {}
virtual int count() const;
virtual bool isValid() const;
virtual QFxItem *item(int index, bool complete=true);
virtual ReleaseFlags release(QFxItem *item);
virtual void completeItem();
virtual QVariant evaluate(int index, const QString &expression, QObject *objectContext);
virtual int indexOf(QFxItem *item, QObject *objectContext) const;
QmlList<QFxItem *> *children();
static QFxVisualItemModelAttached *qmlAttachedProperties(QObject *obj);
private:
Q_DISABLE_COPY(QFxVisualItemModel)
};
class Q_DECLARATIVE_EXPORT QFxVisualDataModel : public QFxVisualModel
{
Q_OBJECT
Q_DECLARE_PRIVATE(QFxVisualDataModel)
Q_PROPERTY(QVariant model READ model WRITE setModel)
Q_PROPERTY(QmlComponent *delegate READ delegate WRITE setDelegate)
Q_PROPERTY(QString part READ part WRITE setPart)
Q_PROPERTY(QObject *parts READ parts CONSTANT)
Q_CLASSINFO("DefaultProperty", "delegate")
public:
QFxVisualDataModel();
QFxVisualDataModel(QmlContext *);
virtual ~QFxVisualDataModel();
QVariant model() const;
void setModel(const QVariant &);
QmlComponent *delegate() const;
void setDelegate(QmlComponent *);
QString part() const;
void setPart(const QString &);
int count() const;
bool isValid() const { return delegate() != 0; }
QFxItem *item(int index, bool complete=true);
QFxItem *item(int index, const QByteArray &, bool complete=true);
ReleaseFlags release(QFxItem *item);
void completeItem();
QVariant evaluate(int index, const QString &expression, QObject *objectContext);
int indexOf(QFxItem *item, QObject *objectContext) const;
QObject *parts();
Q_SIGNALS:
void createdPackage(int index, QmlPackage *package);
void destroyingPackage(QmlPackage *package);
private Q_SLOTS:
void _q_itemsChanged(int, int, const QList<int> &);
void _q_itemsInserted(int index, int count);
void _q_itemsRemoved(int index, int count);
void _q_itemsMoved(int from, int to, int count);
void _q_rowsInserted(const QModelIndex &,int,int);
void _q_rowsRemoved(const QModelIndex &,int,int);
void _q_dataChanged(const QModelIndex&,const QModelIndex&);
void _q_createdPackage(int index, QmlPackage *package);
void _q_destroyingPackage(QmlPackage *package);
private:
Q_DISABLE_COPY(QFxVisualDataModel)
};
QT_END_NAMESPACE
QML_DECLARE_TYPE(QFxVisualModel)
QML_DECLARE_TYPE(QFxVisualItemModel)
QML_DECLARE_TYPEINFO(QFxVisualItemModel, QML_HAS_ATTACHED_PROPERTIES)
QML_DECLARE_TYPE(QFxVisualDataModel)
QT_END_HEADER
#endif // QFXVISUALDATAMODEL_H
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