Item views: improve initial Z-value handling

Respect the initial Z-values of item, highlight, header, footer and
section delegate instances. Mention also the default values in docs.

Change-Id: I2ce4bb537898a0f5fdfa776b79d5747b1c080a7b
Reviewed-by: Michael Brasser <michael.brasser@live.com>
Reviewed-by: Alan Alpert <aalpert@blackberry.com>
Reviewed-by: Martin Jones <martin.jones@jollamobile.com>

1 files changed, 55 insertions, 0 deletions

diff --git a/tests/auto/quick/qquicklistview/data/boundZValues.qml b/tests/auto/quick/qquicklistview/data/boundZValues.qml
new file mode 100644
index 0000000000..10810e540d
--- /dev/null
+++ b/tests/auto/quick/qquicklistview/data/boundZValues.qml
@@ -0,0 +1,55 @@
+import QtQuick 2.0
+
+Rectangle {
+    width: 240
+    height: 320
+
+    ListView {
+        id: list
+
+        property real itemZ: 342
+        property real headerZ: 341
+        property real footerZ: 340
+        property real highlightZ: 339
+        property real sectionZ: 338
+
+        anchors.fill: parent
+        objectName: "list"
+        model: ListModel { ListElement { text: "text" } }
+        currentIndex: 0
+
+        delegate: Text {
+            objectName: "wrapper"
+            font.pointSize: 20
+            text: index
+            z: list.itemZ
+        }
+
+        header: Rectangle {
+            width: 240
+            height: 30
+            z: list.headerZ
+        }
+
+        footer: Rectangle {
+            width: 240
+            height: 30
+            z: list.footerZ
+        }
+
+        highlight: Rectangle {
+            width: 240
+            height: 30
+            z: list.highlightZ
+        }
+
+        section.property: "text"
+        section.delegate: Text {
+            objectName: "section"
+            font.pointSize: 20
+            text: section
+            z: list.sectionZ
+        }
+    }
+}
+