Tumbler: normalize position to [-1.0..1.0]

Change-Id: Id47f3b938e4d2e6ce27fadc47d4aa7437f2bc085
Reviewed-by: Mitch Curtis <mitch.curtis@theqtcompany.com>

1 files changed, 44 insertions, 0 deletions

diff --git a/src/imports/controls/doc/snippets/qtquickcontrols2-tumbler-position.qml b/src/imports/controls/doc/snippets/qtquickcontrols2-tumbler-position.qml
new file mode 100644
index 00000000..65263110
--- /dev/null
+++ b/src/imports/controls/doc/snippets/qtquickcontrols2-tumbler-position.qml
@@ -0,0 +1,44 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:FDL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Free Documentation License Usage
+** Alternatively, this file may be used under the terms of the GNU Free
+** Documentation License version 1.3 as published by the Free Software
+** Foundation and appearing in the file included in the packaging of
+** this file. Please review the following information to ensure
+** the GNU Free Documentation License version 1.3 requirements
+** will be met: http://www.gnu.org/copyleft/fdl.html.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.0
+import QtQuick.Controls 2.0
+
+Frame {
+    Tumbler {
+        model: 6
+        visibleItemCount: 5
+        delegate: Label {
+            text: qsTr("%1 (%2)").arg(index).arg(Tumbler.position.toFixed(1))
+            horizontalAlignment: Text.AlignHCenter
+            verticalAlignment: Text.AlignVCenter
+            //! [1]
+            opacity: 1 - Math.abs(Tumbler.position * 0.8)
+            //! [1]
+        }
+    }
+}