--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/declarative/graphicsitems/qdeclarativevisualitemmodel_p.h Tue Jul 06 15:10:48 2010 +0300
@@ -0,0 +1,261 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QDECLARATIVEVISUALDATAMODEL_H
+#define QDECLARATIVEVISUALDATAMODEL_H
+
+#include <qdeclarative.h>
+
+#include <QtCore/qobject.h>
+#include <QtCore/qabstractitemmodel.h>
+
+QT_BEGIN_HEADER
+
+Q_DECLARE_METATYPE(QModelIndex)
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Declarative)
+/*****************************************************************************
+ *****************************************************************************
+ XXX Experimental
+ *****************************************************************************
+*****************************************************************************/
+
+class QDeclarativeItem;
+class QDeclarativeComponent;
+class QDeclarativePackage;
+class QDeclarativeVisualDataModelPrivate;
+
+class Q_DECLARATIVE_EXPORT QDeclarativeVisualModel : public QObject
+{
+ Q_OBJECT
+
+ Q_PROPERTY(int count READ count NOTIFY countChanged)
+
+public:
+ QDeclarativeVisualModel(QObject *parent=0) : QObject(parent) {}
+ virtual ~QDeclarativeVisualModel() {}
+
+ enum ReleaseFlag { Referenced = 0x01, Destroyed = 0x02 };
+ Q_DECLARE_FLAGS(ReleaseFlags, ReleaseFlag)
+
+ virtual int count() const = 0;
+ virtual bool isValid() const = 0;
+ virtual QDeclarativeItem *item(int index, bool complete=true) = 0;
+ virtual ReleaseFlags release(QDeclarativeItem *item) = 0;
+ virtual bool completePending() const = 0;
+ virtual void completeItem() = 0;
+ virtual QVariant evaluate(int index, const QString &expression, QObject *objectContext) = 0;
+ virtual QString stringValue(int, const QString &) { return QString(); }
+
+ virtual int indexOf(QDeclarativeItem *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 modelReset();
+ void createdItem(int index, QDeclarativeItem *item);
+ void destroyingItem(QDeclarativeItem *item);
+
+protected:
+ QDeclarativeVisualModel(QObjectPrivate &dd, QObject *parent = 0)
+ : QObject(dd, parent) {}
+
+private:
+ Q_DISABLE_COPY(QDeclarativeVisualModel)
+};
+
+class QDeclarativeVisualItemModelAttached;
+class QDeclarativeVisualItemModelPrivate;
+class Q_DECLARATIVE_EXPORT QDeclarativeVisualItemModel : public QDeclarativeVisualModel
+{
+ Q_OBJECT
+ Q_DECLARE_PRIVATE(QDeclarativeVisualItemModel)
+
+ Q_PROPERTY(QDeclarativeListProperty<QDeclarativeItem> children READ children NOTIFY childrenChanged DESIGNABLE false)
+ Q_CLASSINFO("DefaultProperty", "children")
+
+public:
+ QDeclarativeVisualItemModel(QObject *parent=0);
+ virtual ~QDeclarativeVisualItemModel() {}
+
+ virtual int count() const;
+ virtual bool isValid() const;
+ virtual QDeclarativeItem *item(int index, bool complete=true);
+ virtual ReleaseFlags release(QDeclarativeItem *item);
+ virtual bool completePending() const;
+ virtual void completeItem();
+ virtual QString stringValue(int index, const QString &role);
+ virtual QVariant evaluate(int index, const QString &expression, QObject *objectContext);
+
+ virtual int indexOf(QDeclarativeItem *item, QObject *objectContext) const;
+
+ QDeclarativeListProperty<QDeclarativeItem> children();
+
+ static QDeclarativeVisualItemModelAttached *qmlAttachedProperties(QObject *obj);
+
+Q_SIGNALS:
+ void childrenChanged();
+
+private:
+ Q_DISABLE_COPY(QDeclarativeVisualItemModel)
+};
+
+
+class Q_DECLARATIVE_EXPORT QDeclarativeVisualDataModel : public QDeclarativeVisualModel
+{
+ Q_OBJECT
+ Q_DECLARE_PRIVATE(QDeclarativeVisualDataModel)
+
+ Q_PROPERTY(QVariant model READ model WRITE setModel)
+ Q_PROPERTY(QDeclarativeComponent *delegate READ delegate WRITE setDelegate)
+ Q_PROPERTY(QString part READ part WRITE setPart)
+ Q_PROPERTY(QObject *parts READ parts CONSTANT)
+ Q_PROPERTY(QVariant rootIndex READ rootIndex WRITE setRootIndex NOTIFY rootIndexChanged)
+ Q_CLASSINFO("DefaultProperty", "delegate")
+public:
+ QDeclarativeVisualDataModel();
+ QDeclarativeVisualDataModel(QDeclarativeContext *, QObject *parent=0);
+ virtual ~QDeclarativeVisualDataModel();
+
+ QVariant model() const;
+ void setModel(const QVariant &);
+
+ QDeclarativeComponent *delegate() const;
+ void setDelegate(QDeclarativeComponent *);
+
+ QVariant rootIndex() const;
+ void setRootIndex(const QVariant &root);
+
+ Q_INVOKABLE QVariant modelIndex(int idx) const;
+ Q_INVOKABLE QVariant parentModelIndex() const;
+
+ QString part() const;
+ void setPart(const QString &);
+
+ int count() const;
+ bool isValid() const { return delegate() != 0; }
+ QDeclarativeItem *item(int index, bool complete=true);
+ QDeclarativeItem *item(int index, const QByteArray &, bool complete=true);
+ ReleaseFlags release(QDeclarativeItem *item);
+ bool completePending() const;
+ void completeItem();
+ virtual QString stringValue(int index, const QString &role);
+ QVariant evaluate(int index, const QString &expression, QObject *objectContext);
+
+ int indexOf(QDeclarativeItem *item, QObject *objectContext) const;
+
+ QObject *parts();
+
+Q_SIGNALS:
+ void createdPackage(int index, QDeclarativePackage *package);
+ void destroyingPackage(QDeclarativePackage *package);
+ void rootIndexChanged();
+
+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_rowsMoved(const QModelIndex &, int, int, const QModelIndex &, int);
+ void _q_dataChanged(const QModelIndex&,const QModelIndex&);
+ void _q_modelReset();
+ void _q_createdPackage(int index, QDeclarativePackage *package);
+ void _q_destroyingPackage(QDeclarativePackage *package);
+
+private:
+ Q_DISABLE_COPY(QDeclarativeVisualDataModel)
+};
+
+class QDeclarativeVisualItemModelAttached : public QObject
+{
+ Q_OBJECT
+
+public:
+ QDeclarativeVisualItemModelAttached(QObject *parent)
+ : QObject(parent), m_index(0) {}
+ ~QDeclarativeVisualItemModelAttached() {
+ 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 QDeclarativeVisualItemModelAttached *properties(QObject *obj) {
+ QDeclarativeVisualItemModelAttached *rv = attachedProperties.value(obj);
+ if (!rv) {
+ rv = new QDeclarativeVisualItemModelAttached(obj);
+ attachedProperties.insert(obj, rv);
+ }
+ return rv;
+ }
+
+Q_SIGNALS:
+ void indexChanged();
+
+public:
+ int m_index;
+
+ static QHash<QObject*, QDeclarativeVisualItemModelAttached*> attachedProperties;
+};
+
+
+QT_END_NAMESPACE
+
+QML_DECLARE_TYPE(QDeclarativeVisualModel)
+QML_DECLARE_TYPE(QDeclarativeVisualItemModel)
+QML_DECLARE_TYPEINFO(QDeclarativeVisualItemModel, QML_HAS_ATTACHED_PROPERTIES)
+QML_DECLARE_TYPE(QDeclarativeVisualDataModel)
+
+QT_END_HEADER
+
+#endif // QDECLARATIVEVISUALDATAMODEL_H