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Diffstat (limited to 'src/qml/util/qqmladaptormodel_p.h')
| -rw-r--r-- | src/qml/util/qqmladaptormodel_p.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/src/qml/util/qqmladaptormodel_p.h b/src/qml/util/qqmladaptormodel_p.h new file mode 100644 index 0000000000..399350d725 --- /dev/null +++ b/src/qml/util/qqmladaptormodel_p.h @@ -0,0 +1,154 @@ +/**************************************************************************** +** +** 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 QQMLADAPTORMODEL_P_H +#define QQMLADAPTORMODEL_P_H + +#include <QtCore/qabstractitemmodel.h> + +#include "private/qqmllistaccessor_p.h" + +#include <private/qqmlguard_p.h> + +QT_BEGIN_NAMESPACE + +class QQmlEngine; + +class QQmlDelegateModel; +class QQmlDelegateModelItem; +class QQmlDelegateModelItemMetaType; + +class QQmlAdaptorModel : public QQmlGuard<QObject> +{ +public: + class Accessors + { + public: + inline Accessors() {} + virtual ~Accessors(); + virtual int count(const QQmlAdaptorModel &) const { return 0; } + virtual void cleanup(QQmlAdaptorModel &, QQmlDelegateModel * = 0) const {} + + virtual QVariant value(const QQmlAdaptorModel &, int, const QString &) const { + return QVariant(); } + + virtual QQmlDelegateModelItem *createItem( + QQmlAdaptorModel &, + QQmlDelegateModelItemMetaType *, + QQmlEngine *, + int) const { return 0; } + + virtual bool notify( + const QQmlAdaptorModel &, + const QList<QQmlDelegateModelItem *> &, + int, + int, + const QVector<int> &) const { return false; } + virtual void replaceWatchedRoles( + QQmlAdaptorModel &, + const QList<QByteArray> &, + const QList<QByteArray> &) const {} + virtual QVariant parentModelIndex(const QQmlAdaptorModel &) const { + return QVariant(); } + virtual QVariant modelIndex(const QQmlAdaptorModel &, int) const { + return QVariant(); } + virtual bool canFetchMore(const QQmlAdaptorModel &) const { return false; } + virtual void fetchMore(QQmlAdaptorModel &) const {} + }; + + const Accessors *accessors; + QPersistentModelIndex rootIndex; + QQmlListAccessor list; + + QQmlAdaptorModel(); + ~QQmlAdaptorModel(); + + inline QVariant model() const { return list.list(); } + void setModel(const QVariant &variant, QQmlDelegateModel *vdm, QQmlEngine *engine); + void invalidateModel(QQmlDelegateModel *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 QQmlDelegateModelItem *createItem(QQmlDelegateModelItemMetaType *metaType, QQmlEngine *engine, int index) { + return accessors->createItem(*this, metaType, engine, index); } + inline bool hasProxyObject() const { + return list.type() == QQmlListAccessor::Instance || list.type() == QQmlListAccessor::ListProperty; } + + inline bool notify( + const QList<QQmlDelegateModelItem *> &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 QQmlAdaptorModelProxyInterface +{ +public: + virtual ~QQmlAdaptorModelProxyInterface() {} + + virtual QObject *proxiedObject() = 0; +}; + +#define QQmlAdaptorModelProxyInterface_iid "org.qt-project.Qt.QQmlAdaptorModelProxyInterface" + +Q_DECLARE_INTERFACE(QQmlAdaptorModelProxyInterface, QQmlAdaptorModelProxyInterface_iid) + +QT_END_NAMESPACE + +#endif |