Add example that uses QmlComponent to create view items in QGraphicsListView.

2 files changed, 113 insertions, 0 deletions

diff --git a/examples/qmlListView/main.cpp b/examples/qmlListView/main.cpp
new file mode 100644
index 0000000..7c391f4
--- /dev/null
+++ b/examples/qmlListView/main.cpp
@@ -0,0 +1,98 @@
+#include <QtGui>
+#include <QtDeclarative>
+
+#include <qgraphicslistview.h>
+
+#include <qlistwidgetng.h>
+#include <qlistcontroller.h>
+#include <qlistdefaultmodel.h>
+
+#include <qdebug.h>
+
+// creator
+
+class QmlListViewCreator : public QtGraphicsListViewItemCreatorBase
+{
+public:
+    ~QmlListViewCreator();
+    QGraphicsObject *create(int index, QtGraphicsListView *view);
+    QGraphicsObject *reassign(int index, QGraphicsObject *item, QtGraphicsListView *view);
+    void recycle(QGraphicsObject *item, QtGraphicsListView *view);
+    QmlComponent *m_component;
+    QmlEngine *m_engine;
+};
+
+QmlListViewCreator::~QmlListViewCreator()
+{
+}
+
+QGraphicsObject *QmlListViewCreator::create(int index, QtGraphicsListView *view)
+{
+    QGraphicsObject *gobj = 0;
+    QmlContext *context = new QmlContext(m_engine);
+
+    QHash<int, QByteArray> roles = view->model()->roles();
+    QHash<int, QVariant> data = view->model()->data(index);
+    QHash<int, QVariant>::ConstIterator it = data.constBegin();
+    for (;it != data.constEnd(); ++it) {
+        QByteArray name = roles.value(it.key());
+        QVariant value = it.value();
+        context->setContextProperty(name, value);
+    }
+
+    if (QObject *obj = m_component->create(context)) {
+        gobj = static_cast<QGraphicsObject*>(obj);
+        gobj->setParentItem(view);
+        context->setParent(gobj);
+    }
+
+    if (!context->parent())
+        delete context;
+
+    return gobj;
+}
+
+QGraphicsObject *QmlListViewCreator::reassign(int index, QGraphicsObject *item, QtGraphicsListView *view)
+{
+    delete item;
+    return create(index, view);
+    //return item;
+}
+
+void QmlListViewCreator::recycle(QGraphicsObject *item, QtGraphicsListView *view)
+{
+    Q_UNUSED(view);
+    delete item;
+}
+
+// main
+
+int main(int argc, char *argv[])
+{
+	QApplication app(argc, argv);
+    QmlEngine engine;
+
+    QString qml = "import Qt 4.6\n"
+                   "Rect { \n"
+                   " width: 200\n"
+                   " height: 50\n"
+                   " color: \"green\"\n"
+                   " Text {\n"
+                   "  id: \"text\"\n"
+                   "  text: DisplayRole\n"
+                   "  x: 20; y: 20\n"
+                   " }\n"
+                   "}";
+
+    QmlListViewCreator *creator = new QmlListViewCreator;
+    creator->m_component = new QmlComponent(&engine, qml.toUtf8(), QUrl());
+    creator->m_engine = &engine;
+
+    QtListWidgetNG widget;
+    widget.controller()->view()->setItemCreator(creator);
+    for (int i = 0; i < 100; ++i)
+        widget.defaultModel()->appendItem(new QtListDefaultItem(QString("foo ") + QString::number(i)));
+    widget.show();
+
+	return app.exec();
+}
diff --git a/examples/qmlListView/qmlListView.pro b/examples/qmlListView/qmlListView.pro
new file mode 100644
index 0000000..3fbd254
--- /dev/null
+++ b/examples/qmlListView/qmlListView.pro
@@ -0,0 +1,15 @@
+######################################################################
+# Automatically generated by qmake (2.01a) Wed Jul 22 14:34:40 2009
+######################################################################
+
+TEMPLATE = app
+TARGET = 
+DEPENDPATH += .
+INCLUDEPATH += .
+QT += declarative
+CONFIG += debug
+
+include(../examples.pri)
+
+# Input
+SOURCES += main.cpp