- Qt 5.5
- Qt Multimedia
- QML Video Shader Effects Example
- Slider.qml Example File
- Qt 5.5.1 Reference Documentation

# Slider.qml Example File

video/qmlvideofx/qml/qmlvideofx/Slider.qml

    /****************************************************************************
    **
    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** This file is part of the Qt Mobility Components.
    **
    ** $QT_BEGIN_LICENSE:LGPL21$
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    ** Alternatively, this file may be used under the terms of the GNU Lesser
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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
                    }
                }
            }

        }
    }