PathView: update modelCount before attempting to regenerate delegates.

If the model is a VisualDataModel, the count will initally be zero
and modelCount is not updated due to itemsInserted() before the
component is completed.

Task-number: QTBUG-16357
Reviewed-by: Bea Lam

3 files changed, 45 insertions, 1 deletions

diff --git a/src/declarative/graphicsitems/qdeclarativepathview.cpp b/src/declarative/graphicsitems/qdeclarativepathview.cpp
index e3987d0..74d3418 100644
--- a/src/declarative/graphicsitems/qdeclarativepathview.cpp
+++ b/src/declarative/graphicsitems/qdeclarativepathview.cpp
@@ -1318,8 +1318,10 @@ void QDeclarativePathView::componentComplete()
     // It is possible that a refill has already happended to to Path
     // bindings being handled in the componentComplete().  If so
     // don't do it again.
-    if (d->items.count() == 0)
+    if (d->items.count() == 0 && d->model) {
+        d->modelCount = d->model->count();
         d->regenerate();
+    }
     d->updateHighlight();
 }
 
diff --git a/tests/auto/declarative/qdeclarativepathview/data/vdm.qml b/tests/auto/declarative/qdeclarativepathview/data/vdm.qml
new file mode 100644
index 0000000..012db3f
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativepathview/data/vdm.qml
@@ -0,0 +1,28 @@
+import QtQuick 1.0
+
+PathView {
+    id: pathView
+    width: 240; height: 320
+
+    pathItemCount: 4
+    preferredHighlightBegin : 0.5
+    preferredHighlightEnd : 0.5
+
+    path: Path {
+        startX: 120; startY: 20;
+        PathLine { x: 120; y: 300 }
+    }
+
+    ListModel {
+        id: mo
+        ListElement { value: "one" }
+        ListElement { value: "two" }
+        ListElement { value: "three" }
+    }
+
+    model: VisualDataModel {
+        delegate: Text { text: model.value }
+        model : mo
+    }
+}
+
diff --git a/tests/auto/declarative/qdeclarativepathview/tst_qdeclarativepathview.cpp b/tests/auto/declarative/qdeclarativepathview/tst_qdeclarativepathview.cpp
index 9193707..90b1056 100644
--- a/tests/auto/declarative/qdeclarativepathview/tst_qdeclarativepathview.cpp
+++ b/tests/auto/declarative/qdeclarativepathview/tst_qdeclarativepathview.cpp
@@ -87,6 +87,7 @@ private slots:
     void emptyModel();
     void closed();
     void pathUpdate();
+    void visualDataModel();
 
 private:
     QDeclarativeView *createView();
@@ -839,6 +840,19 @@ void tst_QDeclarativePathView::pathUpdate()
     delete canvas;
 }
 
+void tst_QDeclarativePathView::visualDataModel()
+{
+    QDeclarativeEngine engine;
+    QDeclarativeComponent c(&engine, QUrl::fromLocalFile(SRCDIR "/data/vdm.qml"));
+
+    QDeclarativePathView *obj = qobject_cast<QDeclarativePathView*>(c.create());
+    QVERIFY(obj != 0);
+
+    QCOMPARE(obj->count(), 3);
+
+    delete obj;
+}
+
 QDeclarativeView *tst_QDeclarativePathView::createView()
 {
     QDeclarativeView *canvas = new QDeclarativeView(0);