Slider.qml Example File

  /****************************************************************************
  **
  ** Copyright (C) 2016 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the Qt Mobility Components.
  **
  ** $QT_BEGIN_LICENSE:BSD$
  ** 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 https://www.qt.io/terms-conditions. For further
  ** information use the contact form at https://www.qt.io/contact-us.
  **
  ** BSD License Usage
  ** Alternatively, you may use this file under the terms of the BSD license
  ** as follows:
  **
  ** "Redistribution and use in source and binary forms, with or without
  ** modification, are permitted provided that the following conditions are
  ** met:
  **   * Redistributions of source code must retain the above copyright
  **     notice, this list of conditions and the following disclaimer.
  **   * Redistributions in binary form must reproduce the above copyright
  **     notice, this list of conditions and the following disclaimer in
  **     the documentation and/or other materials provided with the
  **     distribution.
  **   * Neither the name of The Qt Company Ltd nor the names of its
  **     contributors may be used to endorse or promote products derived
  **     from this software without specific prior written permission.
  **
  **
  ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
  **
  ** $QT_END_LICENSE$
  **
  ****************************************************************************/

  import QtQuick 2.1

  Rectangle {
      id: root
      color: "transparent"
      radius: 5
      property alias value: grip.value
      property color fillColor: "#14aaff"
      property real gripSize: 40
      property real gripTolerance: 3.0
      property real increment: 0.1
      property bool enabled: true

      Rectangle {
          id: slider
          anchors {
              left: parent.left
              right: parent.right
              verticalCenter: parent.verticalCenter
          }
          height: 10
          color: "transparent"

          BorderImage {
             id: sliderbarimage
             source: "qrc:/images/Slider_bar.png"
             anchors { fill: parent; margins: 1 }
             border.right: 5
             border.left: 5
          }
          Rectangle {
              height: parent.height -2
              anchors.left: parent.left
              anchors.right: grip.horizontalCenter
              color: root.fillColor
              radius: 3
              border.width: 1
              border.color: Qt.darker(color, 1.3)
              opacity: 0.8
          }
          Rectangle {
              id: grip
              property real value: 0.5
              x: (value * parent.width) - width/2
              anchors.verticalCenter: parent.verticalCenter
              width: root.gripTolerance * root.gripSize
              height: width
              radius: width/2
              color: "transparent"

              Image {
                  id: sliderhandleimage
                  source: "qrc:/images/Slider_handle.png"
                  anchors.centerIn: parent
              }

              MouseArea {
                  id: mouseArea
                  enabled: root.enabled
                  anchors.fill:  parent
                  drag {
                      target: grip
                      axis: Drag.XAxis
                      minimumX: -parent.width/2
                      maximumX: root.width - parent.width/2
                  }
                  onPositionChanged:  {
                      if (drag.active)
                          updatePosition()
                  }
                  onReleased: {
                      updatePosition()
                  }
                  function updatePosition() {
                      value = (grip.x + grip.width/2) / slider.width
                  }
              }
          }

      }
  }