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+/****************************************************************************
+**
+** Copyright (C) 2017 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//! [file]
+import QtQuick 2.6
+import QtQuick.Controls 2.2
+
+DelayButton {
+ id: control
+ checked: true
+ text: qsTr("Delay\nButton")
+
+ contentItem: Text {
+ text: control.text
+ font: control.font
+ opacity: enabled ? 1.0 : 0.3
+ color: "white"
+ horizontalAlignment: Text.AlignHCenter
+ verticalAlignment: Text.AlignVCenter
+ elide: Text.ElideRight
+ }
+
+ background: Rectangle {
+ implicitWidth: 100
+ implicitHeight: 100
+ opacity: enabled ? 1 : 0.3
+ color: control.down ? "#17a81a" : "#21be2b"
+ radius: size / 2
+
+ readonly property real size: Math.min(control.width, control.height)
+ width: size
+ height: size
+ anchors.centerIn: parent
+
+ Canvas {
+ id: canvas
+ anchors.fill: parent
+
+ Connections {
+ target: control
+ onProgressChanged: canvas.requestPaint()
+ }
+
+ onPaint: {
+ var ctx = getContext("2d")
+ ctx.clearRect(0, 0, width, height)
+ ctx.strokeStyle = "white"
+ ctx.lineWidth = parent.size / 20
+ ctx.beginPath()
+ var startAngle = Math.PI / 5 * 3
+ var endAngle = startAngle + control.progress * Math.PI / 5 * 9
+ ctx.arc(width / 2, height / 2, width / 2 - ctx.lineWidth / 2 - 2, startAngle, endAngle)
+ ctx.stroke()
+ }
+ }
+ }
+}
+//! [file]