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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QQUICKVISUALADAPTORMODEL_P_H
#define QQUICKVISUALADAPTORMODEL_P_H
#include <QtCore/qabstractitemmodel.h>
#include "private/qquicklistaccessor_p.h"
#include <private/qqmlguard_p.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class QQmlEngine;
class QQuickVisualDataModel;
class QQuickVisualDataModelItem;
class QQuickVisualDataModelItemMetaType;
class QQuickVisualAdaptorModel : public QQmlGuard<QObject>
{
public:
class Accessors
{
public:
inline Accessors() {}
virtual ~Accessors();
virtual int count(const QQuickVisualAdaptorModel &) const { return 0; }
virtual void cleanup(QQuickVisualAdaptorModel &, QQuickVisualDataModel * = 0) const {}
virtual QVariant value(const QQuickVisualAdaptorModel &, int, const QString &) const {
return QVariant(); }
virtual QQuickVisualDataModelItem *createItem(
QQuickVisualAdaptorModel &,
QQuickVisualDataModelItemMetaType *,
QQmlEngine *,
int) const { return 0; }
virtual bool notify(
const QQuickVisualAdaptorModel &,
const QList<QQuickVisualDataModelItem *> &,
int,
int,
const QVector<int> &) const { return false; }
virtual void replaceWatchedRoles(
QQuickVisualAdaptorModel &,
const QList<QByteArray> &,
const QList<QByteArray> &) const {}
virtual QVariant parentModelIndex(const QQuickVisualAdaptorModel &) const {
return QVariant(); }
virtual QVariant modelIndex(const QQuickVisualAdaptorModel &, int) const {
return QVariant(); }
virtual bool canFetchMore(const QQuickVisualAdaptorModel &) const { return false; }
virtual void fetchMore(QQuickVisualAdaptorModel &) const {}
};
const Accessors *accessors;
QPersistentModelIndex rootIndex;
QQuickListAccessor list;
QQuickVisualAdaptorModel();
~QQuickVisualAdaptorModel();
inline QVariant model() const { return list.list(); }
void setModel(const QVariant &variant, QQuickVisualDataModel *vdm, QQmlEngine *engine);
void invalidateModel(QQuickVisualDataModel *vdm);
bool isValid() const;
inline QAbstractItemModel *aim() { return static_cast<QAbstractItemModel *>(object()); }
inline const QAbstractItemModel *aim() const { return static_cast<const QAbstractItemModel *>(object()); }
inline int count() const { return qMax(0, accessors->count(*this)); }
inline QVariant value(int index, const QString &role) const {
return accessors->value(*this, index, role); }
inline QQuickVisualDataModelItem *createItem(QQuickVisualDataModelItemMetaType *metaType, QQmlEngine *engine, int index) {
return accessors->createItem(*this, metaType, engine, index); }
inline bool hasProxyObject() const {
return list.type() == QQuickListAccessor::Instance || list.type() == QQuickListAccessor::ListProperty; }
inline bool notify(
const QList<QQuickVisualDataModelItem *> &items,
int index,
int count,
const QVector<int> &roles) const {
return accessors->notify(*this, items, index, count, roles); }
inline void replaceWatchedRoles(
const QList<QByteArray> &oldRoles, const QList<QByteArray> &newRoles) {
accessors->replaceWatchedRoles(*this, oldRoles, newRoles); }
inline QVariant modelIndex(int index) const { return accessors->modelIndex(*this, index); }
inline QVariant parentModelIndex() const { return accessors->parentModelIndex(*this); }
inline bool canFetchMore() const { return accessors->canFetchMore(*this); }
inline void fetchMore() { return accessors->fetchMore(*this); }
protected:
void objectDestroyed(QObject *);
};
class QQuickVisualAdaptorModelProxyInterface
{
public:
virtual ~QQuickVisualAdaptorModelProxyInterface() {}
virtual QObject *proxiedObject() = 0;
};
#define QQuickVisualAdaptorModelProxyInterface_iid "org.qt-project.Qt.QQuickVisualAdaptorModelProxyInterface"
Q_DECLARE_INTERFACE(QQuickVisualAdaptorModelProxyInterface, QQuickVisualAdaptorModelProxyInterface_iid)
QT_END_NAMESPACE
#endif
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