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Diffstat (limited to 'src/quick/items/qquickvisualitemmodel_p.h')
-rw-r--r-- | src/quick/items/qquickvisualitemmodel_p.h | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/src/quick/items/qquickvisualitemmodel_p.h b/src/quick/items/qquickvisualitemmodel_p.h new file mode 100644 index 0000000000..c00f841572 --- /dev/null +++ b/src/quick/items/qquickvisualitemmodel_p.h @@ -0,0 +1,174 @@ +// Commit: ac5c099cc3c5b8c7eec7a49fdeb8a21037230350 +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation ([email protected]) +** +** 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 QQUICKVISUALITEMMODEL_P_H +#define QQUICKVISUALITEMMODEL_P_H + +#include <QtQuick/qtquickglobal.h> +#include <QtDeclarative/qdeclarative.h> +#include <QtCore/qobject.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +class QQuickItem; +class QDeclarativeChangeSet; + +class Q_QUICK_EXPORT QQuickVisualModel : public QObject +{ + Q_OBJECT + + Q_PROPERTY(int count READ count NOTIFY countChanged) + +public: + virtual ~QQuickVisualModel() {} + + enum ReleaseFlag { Referenced = 0x01, Destroyed = 0x02 }; + Q_DECLARE_FLAGS(ReleaseFlags, ReleaseFlag) + + virtual int count() const = 0; + virtual bool isValid() const = 0; + virtual QQuickItem *item(int index, bool asynchronous=false) = 0; + virtual ReleaseFlags release(QQuickItem *item) = 0; + virtual QString stringValue(int, const QString &) = 0; + virtual void setWatchedRoles(QList<QByteArray> roles) = 0; + + virtual int indexOf(QQuickItem *item, QObject *objectContext) const = 0; + +Q_SIGNALS: + void countChanged(); + void modelUpdated(const QDeclarativeChangeSet &changeSet, bool reset); + void createdItem(int index, QQuickItem *item); + void initItem(int index, QQuickItem *item); + void destroyingItem(QQuickItem *item); + +protected: + QQuickVisualModel(QObjectPrivate &dd, QObject *parent = 0) + : QObject(dd, parent) {} + +private: + Q_DISABLE_COPY(QQuickVisualModel) +}; + +class QQuickVisualItemModelAttached; +class QQuickVisualItemModelPrivate; +class Q_QUICK_EXPORT QQuickVisualItemModel : public QQuickVisualModel +{ + Q_OBJECT + Q_DECLARE_PRIVATE(QQuickVisualItemModel) + + Q_PROPERTY(QDeclarativeListProperty<QQuickItem> children READ children NOTIFY childrenChanged DESIGNABLE false) + Q_CLASSINFO("DefaultProperty", "children") + +public: + QQuickVisualItemModel(QObject *parent=0); + virtual ~QQuickVisualItemModel() {} + + virtual int count() const; + virtual bool isValid() const; + virtual QQuickItem *item(int index, bool asynchronous=false); + virtual ReleaseFlags release(QQuickItem *item); + virtual QString stringValue(int index, const QString &role); + virtual void setWatchedRoles(QList<QByteArray>) {} + + virtual int indexOf(QQuickItem *item, QObject *objectContext) const; + + QDeclarativeListProperty<QQuickItem> children(); + + static QQuickVisualItemModelAttached *qmlAttachedProperties(QObject *obj); + +Q_SIGNALS: + void childrenChanged(); + +private: + Q_DISABLE_COPY(QQuickVisualItemModel) +}; + +class QQuickVisualItemModelAttached : public QObject +{ + Q_OBJECT + +public: + QQuickVisualItemModelAttached(QObject *parent) + : QObject(parent), m_index(0) {} + ~QQuickVisualItemModelAttached() { + attachedProperties.remove(parent()); + } + + Q_PROPERTY(int index READ index NOTIFY indexChanged) + int index() const { return m_index; } + void setIndex(int idx) { + if (m_index != idx) { + m_index = idx; + emit indexChanged(); + } + } + + static QQuickVisualItemModelAttached *properties(QObject *obj) { + QQuickVisualItemModelAttached *rv = attachedProperties.value(obj); + if (!rv) { + rv = new QQuickVisualItemModelAttached(obj); + attachedProperties.insert(obj, rv); + } + return rv; + } + +Q_SIGNALS: + void indexChanged(); + +public: + int m_index; + + static QHash<QObject*, QQuickVisualItemModelAttached*> attachedProperties; +}; + + +QT_END_NAMESPACE + +QML_DECLARE_TYPE(QQuickVisualModel) +QML_DECLARE_TYPE(QQuickVisualItemModel) +QML_DECLARE_TYPEINFO(QQuickVisualItemModel, QML_HAS_ATTACHED_PROPERTIES) + +QT_END_HEADER + +#endif // QQUICKVISUALITEMMODEL_P_H |