1 /****************************************************************************
3 ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4 ** All rights reserved.
5 ** Contact: Nokia Corporation (qt-info@nokia.com)
7 ** This file is part of the QtDeclarative module of the Qt Toolkit.
9 ** $QT_BEGIN_LICENSE:LGPL$
10 ** No Commercial Usage
11 ** This file contains pre-release code and may not be distributed.
12 ** You may use this file in accordance with the terms and conditions
13 ** contained in the Technology Preview License Agreement accompanying
16 ** GNU Lesser General Public License Usage
17 ** Alternatively, this file may be used under the terms of the GNU Lesser
18 ** General Public License version 2.1 as published by the Free Software
19 ** Foundation and appearing in the file LICENSE.LGPL included in the
20 ** packaging of this file. Please review the following information to
21 ** ensure the GNU Lesser General Public License version 2.1 requirements
22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
24 ** In addition, as a special exception, Nokia gives you certain additional
25 ** rights. These rights are described in the Nokia Qt LGPL Exception
26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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40 ****************************************************************************/
42 #ifndef QDECLARATIVEVISUALDATAMODEL_H
43 #define QDECLARATIVEVISUALDATAMODEL_H
45 #include <qdeclarative.h>
47 #include <QtCore/qobject.h>
48 #include <QtCore/qabstractitemmodel.h>
52 Q_DECLARE_METATYPE(QModelIndex)
56 QT_MODULE(Declarative)
58 class QDeclarativeItem;
59 class QDeclarativeComponent;
60 class QDeclarativePackage;
61 class QDeclarativeVisualDataModelPrivate;
63 class Q_AUTOTEST_EXPORT QDeclarativeVisualModel : public QObject
67 Q_PROPERTY(int count READ count NOTIFY countChanged)
70 virtual ~QDeclarativeVisualModel() {}
72 enum ReleaseFlag { Referenced = 0x01, Destroyed = 0x02 };
73 Q_DECLARE_FLAGS(ReleaseFlags, ReleaseFlag)
75 virtual int count() const = 0;
76 virtual bool isValid() const = 0;
77 virtual QDeclarativeItem *item(int index, bool complete=true) = 0;
78 virtual ReleaseFlags release(QDeclarativeItem *item) = 0;
79 virtual bool completePending() const = 0;
80 virtual void completeItem() = 0;
81 virtual QString stringValue(int, const QString &) = 0;
82 virtual void setWatchedRoles(QList<QByteArray> roles) = 0;
84 virtual int indexOf(QDeclarativeItem *item, QObject *objectContext) const = 0;
88 void itemsInserted(int index, int count);
89 void itemsRemoved(int index, int count);
90 void itemsMoved(int from, int to, int count);
91 void itemsChanged(int index, int count);
93 void createdItem(int index, QDeclarativeItem *item);
94 void destroyingItem(QDeclarativeItem *item);
97 QDeclarativeVisualModel(QObjectPrivate &dd, QObject *parent = 0)
98 : QObject(dd, parent) {}
101 Q_DISABLE_COPY(QDeclarativeVisualModel)
104 class QDeclarativeVisualItemModelAttached;
105 class QDeclarativeVisualItemModelPrivate;
106 class Q_AUTOTEST_EXPORT QDeclarativeVisualItemModel : public QDeclarativeVisualModel
109 Q_DECLARE_PRIVATE(QDeclarativeVisualItemModel)
111 Q_PROPERTY(QDeclarativeListProperty<QDeclarativeItem> children READ children NOTIFY childrenChanged DESIGNABLE false)
112 Q_CLASSINFO("DefaultProperty", "children")
115 QDeclarativeVisualItemModel(QObject *parent=0);
116 virtual ~QDeclarativeVisualItemModel() {}
118 virtual int count() const;
119 virtual bool isValid() const;
120 virtual QDeclarativeItem *item(int index, bool complete=true);
121 virtual ReleaseFlags release(QDeclarativeItem *item);
122 virtual bool completePending() const;
123 virtual void completeItem();
124 virtual QString stringValue(int index, const QString &role);
125 virtual void setWatchedRoles(QList<QByteArray>) {}
127 virtual int indexOf(QDeclarativeItem *item, QObject *objectContext) const;
129 QDeclarativeListProperty<QDeclarativeItem> children();
131 static QDeclarativeVisualItemModelAttached *qmlAttachedProperties(QObject *obj);
134 void childrenChanged();
137 Q_DISABLE_COPY(QDeclarativeVisualItemModel)
141 class Q_AUTOTEST_EXPORT QDeclarativeVisualDataModel : public QDeclarativeVisualModel
144 Q_DECLARE_PRIVATE(QDeclarativeVisualDataModel)
146 Q_PROPERTY(QVariant model READ model WRITE setModel)
147 Q_PROPERTY(QDeclarativeComponent *delegate READ delegate WRITE setDelegate)
148 Q_PROPERTY(QString part READ part WRITE setPart)
149 Q_PROPERTY(QObject *parts READ parts CONSTANT)
150 Q_PROPERTY(QVariant rootIndex READ rootIndex WRITE setRootIndex NOTIFY rootIndexChanged)
151 Q_CLASSINFO("DefaultProperty", "delegate")
153 QDeclarativeVisualDataModel();
154 QDeclarativeVisualDataModel(QDeclarativeContext *, QObject *parent=0);
155 virtual ~QDeclarativeVisualDataModel();
157 QVariant model() const;
158 void setModel(const QVariant &);
160 QDeclarativeComponent *delegate() const;
161 void setDelegate(QDeclarativeComponent *);
163 QVariant rootIndex() const;
164 void setRootIndex(const QVariant &root);
166 Q_INVOKABLE QVariant modelIndex(int idx) const;
167 Q_INVOKABLE QVariant parentModelIndex() const;
169 QString part() const;
170 void setPart(const QString &);
173 bool isValid() const { return delegate() != 0; }
174 QDeclarativeItem *item(int index, bool complete=true);
175 QDeclarativeItem *item(int index, const QByteArray &, bool complete=true);
176 ReleaseFlags release(QDeclarativeItem *item);
177 bool completePending() const;
179 virtual QString stringValue(int index, const QString &role);
180 virtual void setWatchedRoles(QList<QByteArray> roles);
182 int indexOf(QDeclarativeItem *item, QObject *objectContext) const;
187 void createdPackage(int index, QDeclarativePackage *package);
188 void destroyingPackage(QDeclarativePackage *package);
189 void rootIndexChanged();
192 void _q_itemsChanged(int, int, const QList<int> &);
193 void _q_itemsInserted(int index, int count);
194 void _q_itemsRemoved(int index, int count);
195 void _q_itemsMoved(int from, int to, int count);
196 void _q_rowsInserted(const QModelIndex &,int,int);
197 void _q_rowsRemoved(const QModelIndex &,int,int);
198 void _q_rowsMoved(const QModelIndex &, int, int, const QModelIndex &, int);
199 void _q_dataChanged(const QModelIndex&,const QModelIndex&);
200 void _q_layoutChanged();
201 void _q_modelReset();
202 void _q_createdPackage(int index, QDeclarativePackage *package);
203 void _q_destroyingPackage(QDeclarativePackage *package);
206 Q_DISABLE_COPY(QDeclarativeVisualDataModel)
209 class QDeclarativeVisualItemModelAttached : public QObject
214 QDeclarativeVisualItemModelAttached(QObject *parent)
215 : QObject(parent), m_index(0) {}
216 ~QDeclarativeVisualItemModelAttached() {
217 attachedProperties.remove(parent());
220 Q_PROPERTY(int index READ index NOTIFY indexChanged)
221 int index() const { return m_index; }
222 void setIndex(int idx) {
223 if (m_index != idx) {
229 static QDeclarativeVisualItemModelAttached *properties(QObject *obj) {
230 QDeclarativeVisualItemModelAttached *rv = attachedProperties.value(obj);
232 rv = new QDeclarativeVisualItemModelAttached(obj);
233 attachedProperties.insert(obj, rv);
244 static QHash<QObject*, QDeclarativeVisualItemModelAttached*> attachedProperties;
250 QML_DECLARE_TYPE(QDeclarativeVisualModel)
251 QML_DECLARE_TYPE(QDeclarativeVisualItemModel)
252 QML_DECLARE_TYPEINFO(QDeclarativeVisualItemModel, QML_HAS_ATTACHED_PROPERTIES)
253 QML_DECLARE_TYPE(QDeclarativeVisualDataModel)
257 #endif // QDECLARATIVEVISUALDATAMODEL_H