Qt 5.6 | Qt Multimedia | QML Video Shader Effects Example | Slider.qml Example File

Qt 5.6.2 Reference Documentation

# Slider.qml Example File

multimedia/video/qmlvideofx/qml/qmlvideofx/Slider.qml

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      ** $QT_BEGIN_LICENSE:LGPL21$
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      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
                      }
                  }
              }

          }
      }