Add SwitchDelegate

SwitchDelegate is an item delegate that is used in lists, and can be
checked and unchecked. It derives from QQuickItemDelegate and hence has
background press effects. The order of the indicator and text is
reversed (compared to Switch) to reflect what is most commonly
seen on mobile.

Change-Id: I6f8fca8d1a8c91f2cb9d8bbbb685ad163712dfa1
Reviewed-by: J-P Nurmi <jpnurmi@theqtcompany.com>

1 files changed, 91 insertions, 0 deletions

diff --git a/src/imports/controls/material/SwitchIndicator.qml b/src/imports/controls/material/SwitchIndicator.qml
new file mode 100644
index 00000000..cc026d74
--- /dev/null
+++ b/src/imports/controls/material/SwitchIndicator.qml
@@ -0,0 +1,91 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Labs Controls module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** 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 Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.6
+import QtGraphicalEffects 1.0
+import Qt.labs.controls.material 1.0
+import Qt.labs.controls.material.impl 1.0
+
+Item {
+    implicitWidth: 38
+    implicitHeight: 32
+
+    property alias control: ripple.control
+
+    Ripple {
+        id: ripple
+        x: handle.x + handle.width / 2 - width / 2
+        y: handle.y + handle.height / 2 - height / 2
+        width: handle.width
+        height: width
+        colored: control.checked
+        opacity: control.pressed || control.activeKeyFocus ? 1 : 0
+    }
+
+    Rectangle {
+        width: parent.width
+        height: 14
+        radius: height / 2
+        y: parent.height / 2 - height / 2
+        color: control.enabled ? (control.checked ? control.Material.switchCheckedTrackColor : control.Material.switchUncheckedTrackColor)
+                               : control.Material.switchDisabledTrackColor
+    }
+
+    Rectangle {
+        id: handle
+        x: Math.max(0, Math.min(parent.width - width, control.visualPosition * parent.width - (width / 2)))
+        y: (parent.height - height) / 2
+        width: 20
+        height: 20
+        radius: width / 2
+        color: control.enabled ? (control.checked ? control.Material.switchCheckedHandleColor : control.Material.switchUncheckedHandleColor)
+                               : control.Material.switchDisabledHandleColor
+
+        Behavior on x {
+            enabled: !control.pressed
+            SmoothedAnimation {
+                duration: 300
+            }
+        }
+
+        layer.enabled: true
+        layer.effect: DropShadow {
+            verticalOffset: 1
+            color: control.Material.dropShadowColor
+            spread: 0.3
+        }
+    }
+}