import Qt 4.6

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 'Vertical' or 'Horizontal'

    property real position

    property real pageSize

    property var orientation : "Vertical"

    // A light, semi-transparent background

    Rectangle {

        id: background

        radius: orientation == 'Vertical' ? (width/2 - 1) : (height/2 - 1)

        color: "white"; opacity: 0.3

        anchors.fill: parent

    }

    // Size the bar to the required size, depending upon the orientation.

    Rectangle {

        opacity: 0.7

        color: "black"

        radius: orientation == 'Vertical' ? (width/2 - 1) : (height/2 - 1)

        x: orientation == 'Vertical' ? 1 : (scrollBar.position * (scrollBar.width-2) + 1)

        y: orientation == 'Vertical' ? (scrollBar.position * (scrollBar.height-2) + 1) : 1

        width: orientation == 'Vertical' ? (parent.width-2) : (scrollBar.pageSize * (scrollBar.width-2))

        height: orientation == 'Vertical' ? (scrollBar.pageSize * (scrollBar.height-2)) : (parent.height-2)

    }

}