- Qt 5.5
- Qt Quick
- UI Components: Dial Control Example
- Dial.qml Example File
- Qt 5.5.1 Reference Documentation

# Dial.qml Example File

customitems/dialcontrol/content/Dial.qml

    /****************************************************************************
    **
    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** This file is part of the examples of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:BSD$
    ** You may use this file under the terms of the BSD license as follows:
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    import QtQuick 2.0

    Item {
        id: root
        property real value : 0

        width: 210; height: 210

        Image { source: "background.png" }

        Image {
            x: 96
            y: 35
            source: "needle_shadow.png"
            transform: Rotation {
                origin.x: 9; origin.y: 67
                angle: needleRotation.angle
            }
        }
        Image {
            id: needle
            x: 98; y: 33
            antialiasing: true
            source: "needle.png"
            transform: Rotation {
                id: needleRotation
                origin.x: 5; origin.y: 65
                angle: Math.min(Math.max(-130, root.value*2.6 - 130), 133)
                Behavior on angle {
                    SpringAnimation {
                        spring: 1.4
                        damping: .15
                    }
                }
            }
        }
        Image { x: 21; y: 18; source: "overlay.png" }
    }