Tumbler: add positionViewAtIndex() function

This calls the respective PathView/ListView function (depending on
the value of wrap), and allows users to change the current index
without animations.

[ChangeLog][Controls][Tumbler] Added positionViewAtIndex() function
that calls the respective PathView/ListView function, depending on
the value of wrap. This allows changing currentIndex without
animations.

Task-number: QTBUG-66358
Change-Id: I7fe73bd3e53548ef41a165b68637d99f3171e02e
Reviewed-by: J-P Nurmi <jpnurmi@qt.io>

1 files changed, 13 insertions, 0 deletions

diff --git a/src/quicktemplates2/qquicktumbler_p.h b/src/quicktemplates2/qquicktumbler_p.h
index 5d4df4a7..3f7c06db 100644
--- a/src/quicktemplates2/qquicktumbler_p.h
+++ b/src/quicktemplates2/qquicktumbler_p.h
@@ -100,6 +100,19 @@ public:
     // 2.2 (Qt 5.9)
     bool isMoving() const;
 
+    enum PositionMode {
+        Beginning,
+        Center,
+        End,
+        Visible, // ListView-only
+        Contain,
+        SnapPosition
+    };
+    Q_ENUM(PositionMode)
+
+    // 2.5 (Qt 5.12)
+    Q_REVISION(5) Q_INVOKABLE void positionViewAtIndex(int index, PositionMode mode);
+
 Q_SIGNALS:
     void modelChanged();
     void countChanged();