Fix QList<QObject*> as a model. Add docs and example.

8 files changed, 307 insertions, 7 deletions

diff --git a/doc/src/declarative/qmlmodels.qdoc b/doc/src/declarative/qmlmodels.qdoc
index 322f225..4115e8d 100644
--- a/doc/src/declarative/qmlmodels.qdoc
+++ b/doc/src/declarative/qmlmodels.qdoc
@@ -169,11 +169,58 @@ will be positioned by the view.
 
 \section1 C++ Data Models
 
-\list
-\o QAbstractItemModel provides the roles set via the QAbstractItemModel::setRoleNames() method.
-\o QStringList provides the contents of the list via the \e modelData role.
-\o QList<QObject*> provides the properties of the objects in the list as roles.
-\endlist
+\section2 QAbstractItemModel
+
+QAbstractItemModel provides the roles set via the QAbstractItemModel::setRoleNames() method.
+
+
+\section2 QStringList
+
+QStringList provides the contents of the list via the \e modelData role.
+
+
+\section2 QList<QObject*>
+
+QList<QObject*> provides the properties of the objects in the list as roles.
+
+\code
+class DataObject : public QObject
+{
+    Q_OBJECT
+
+    Q_PROPERTY(QString name READ name WRITE setName)
+    Q_PROPERTY(QString color READ color WRITE setColor)
+...
+};
+
+QList<QObject*> dataList;
+dataList.append(new DataObject("Item 1", "red"));
+dataList.append(new DataObject("Item 2", "green"));
+dataList.append(new DataObject("Item 3", "blue"));
+dataList.append(new DataObject("Item 4", "yellow"));
+
+QmlContext *ctxt = view.rootContext();
+ctxt->setContextProperty("myModel", QVariant::fromValue(&dataList));
+\endcode
+
+The properties of the object may then be accessed in the delegate:
+
+\code
+ListView {
+   width: 100
+   height: 100
+   anchors.fill: parent
+   model: myModel
+   delegate: Component {
+       Rectangle {
+            height: 25
+            width: 100
+            color: model.color
+            Text { text: name }
+       }
+   }
+}
+\endcode
 
 
 \section1 Other Data Models
diff --git a/examples/declarative/objectlistmodel/dataobject.cpp b/examples/declarative/objectlistmodel/dataobject.cpp
new file mode 100644
index 0000000..da85fe2
--- /dev/null
+++ b/examples/declarative/objectlistmodel/dataobject.cpp
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QDebug>
+#include "dataobject.h"
+
+DataObject::DataObject(QObject *parent)
+    : QObject(parent)
+{
+}
+
+DataObject::DataObject(const QString &name, const QString &color, QObject *parent)
+    : QObject(parent), m_name(name), m_color(color)
+{
+}
+
+QString DataObject::name() const
+{
+    return m_name;
+}
+
+void DataObject::setName(const QString &name)
+{
+    m_name = name;
+}
+
+QString DataObject::color() const
+{
+    return m_color;
+}
+
+void DataObject::setColor(const QString &color)
+{
+    m_color = color;
+}
diff --git a/examples/declarative/objectlistmodel/dataobject.h b/examples/declarative/objectlistmodel/dataobject.h
new file mode 100644
index 0000000..c0aa159
--- /dev/null
+++ b/examples/declarative/objectlistmodel/dataobject.h
@@ -0,0 +1,69 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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 DATAOBJECT_H
+#define DATAOBJECT_H
+
+#include <QObject>
+
+class DataObject : public QObject
+{
+    Q_OBJECT
+
+    Q_PROPERTY(QString name READ name WRITE setName)
+    Q_PROPERTY(QString color READ color WRITE setColor)
+
+public:
+    DataObject(QObject *parent=0);
+    DataObject(const QString &name, const QString &color, QObject *parent=0);
+
+    QString name() const;
+    void setName(const QString &name);
+
+    QString color() const;
+    void setColor(const QString &color);
+
+private:
+    QString m_name;
+    QString m_color;
+};
+
+#endif // DATAOBJECT_H
diff --git a/examples/declarative/objectlistmodel/main.cpp b/examples/declarative/objectlistmodel/main.cpp
new file mode 100644
index 0000000..3f2ac6d
--- /dev/null
+++ b/examples/declarative/objectlistmodel/main.cpp
@@ -0,0 +1,78 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+
+#include <qmlengine.h>
+#include <qmlcontext.h>
+#include <qml.h>
+#include <qmlgraphicsitem.h>
+#include <qmlview.h>
+
+#include "dataobject.h"
+
+/*
+   This example illustrates exposing a QList<QObject*> as a
+   model in QML
+*/
+
+int main(int argc, char ** argv)
+{
+    QApplication app(argc, argv);
+
+    QmlView view;
+    view.setUrl(QUrl("qrc:view.qml"));
+
+    QList<QObject*> dataList;
+    dataList.append(new DataObject("Item 1", "red"));
+    dataList.append(new DataObject("Item 2", "green"));
+    dataList.append(new DataObject("Item 3", "blue"));
+    dataList.append(new DataObject("Item 4", "yellow"));
+
+    QmlContext *ctxt = view.rootContext();
+    ctxt->setContextProperty("myModel", QVariant::fromValue(&dataList));
+
+    view.execute();
+    view.show();
+
+    return app.exec();
+}
+
diff --git a/examples/declarative/objectlistmodel/objectlistmodel.pro b/examples/declarative/objectlistmodel/objectlistmodel.pro
new file mode 100644
index 0000000..ca61e4c
--- /dev/null
+++ b/examples/declarative/objectlistmodel/objectlistmodel.pro
@@ -0,0 +1,11 @@
+TEMPLATE = app
+TARGET = objectlistmodel
+DEPENDPATH += .
+INCLUDEPATH += .
+QT += declarative
+
+# Input
+SOURCES += main.cpp \
+           dataobject.cpp
+HEADERS += dataobject.h
+RESOURCES += objectlistmodel.qrc
diff --git a/examples/declarative/objectlistmodel/objectlistmodel.qrc b/examples/declarative/objectlistmodel/objectlistmodel.qrc
new file mode 100644
index 0000000..17e9301
--- /dev/null
+++ b/examples/declarative/objectlistmodel/objectlistmodel.qrc
@@ -0,0 +1,5 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource>
+    <file>view.qml</file>
+</qresource>
+</RCC>
diff --git a/examples/declarative/objectlistmodel/view.qml b/examples/declarative/objectlistmodel/view.qml
new file mode 100644
index 0000000..5f5e415
--- /dev/null
+++ b/examples/declarative/objectlistmodel/view.qml
@@ -0,0 +1,16 @@
+import Qt 4.6
+
+ListView {
+    width: 100
+    height: 100
+    anchors.fill: parent
+    model: myModel
+    delegate: Component {
+        Rectangle {
+            height: 25
+            width: 100
+            color: model.color
+            Text { text: name }
+        }
+    }
+}
diff --git a/src/declarative/graphicsitems/qmlgraphicsvisualitemmodel.cpp b/src/declarative/graphicsitems/qmlgraphicsvisualitemmodel.cpp
index 70e3a43..bd60562 100644
--- a/src/declarative/graphicsitems/qmlgraphicsvisualitemmodel.cpp
+++ b/src/declarative/graphicsitems/qmlgraphicsvisualitemmodel.cpp
@@ -462,7 +462,8 @@ int QmlGraphicsVisualDataModelDataMetaObject::createProperty(const char *name, c
     QmlGraphicsVisualDataModelPrivate *model = QmlGraphicsVisualDataModelPrivate::get(data->m_model);
 
     if ((!model->m_listModelInterface || !model->m_abstractItemModel) && model->m_listAccessor) {
-        if (model->m_listAccessor->type() == QmlListAccessor::QmlList) {
+        if (model->m_listAccessor->type() == QmlListAccessor::QmlList
+            || model->m_listAccessor->type() == QmlListAccessor::QListPtr) {
             model->ensureRoles();
             QObject *object = model->m_listAccessor->at(data->m_index).value<QObject*>();
             if (object && object->property(name).isValid())
@@ -724,7 +725,7 @@ void QmlGraphicsVisualDataModel::setModel(const QVariant &model)
     }
     d->m_listAccessor = new QmlListAccessor;
     d->m_listAccessor->setList(model, d->m_context?d->m_context->engine():qmlEngine(this));
-    if (d->m_listAccessor->type() != QmlListAccessor::QmlList)
+    if (d->m_listAccessor->type() != QmlListAccessor::QmlList && d->m_listAccessor->type() != QmlListAccessor::QListPtr)
         d->m_metaDataCacheable = true;
     if (d->m_delegate && d->modelCount()) {
         emit itemsInserted(0, d->modelCount());