Qt 5.7 | Qt Quick | UI Components: Scroll Bar Example | ScrollBar.qml Example File

Qt 5.7.1 Reference Documentation

# ScrollBar.qml Example File

customitems/scrollbar/ScrollBar.qml

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      import QtQuick 2.0

      Item {
          id: scrollBar

          // The properties that define the scrollbar's state.
          // position and pageSize are in the range 0.0 - 1.0.  They are relative to the
          // height of the page, i.e. a pageSize of 0.5 means that you can see 50%
          // of the height of the view.
          // orientation can be either Qt.Vertical or Qt.Horizontal
          property real position
          property real pageSize
          property variant orientation : Qt.Vertical

          // A light, semi-transparent background
          Rectangle {
              id: background
              anchors.fill: parent
              radius: orientation == Qt.Vertical ? (width/2 - 1) : (height/2 - 1)
              color: "white"
              opacity: 0.3
          }

          // Size the bar to the required size, depending upon the orientation.
          Rectangle {
              x: orientation == Qt.Vertical ? 1 : (scrollBar.position * (scrollBar.width-2) + 1)
              y: orientation == Qt.Vertical ? (scrollBar.position * (scrollBar.height-2) + 1) : 1
              width: orientation == Qt.Vertical ? (parent.width-2) : (scrollBar.pageSize * (scrollBar.width-2))
              height: orientation == Qt.Vertical ? (scrollBar.pageSize * (scrollBar.height-2)) : (parent.height-2)
              radius: orientation == Qt.Vertical ? (width/2 - 1) : (height/2 - 1)
              color: "black"
              opacity: 0.7
          }
      }