/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Graphical Effects module.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** GNU General Public License Usage
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** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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import QtQuick 2.12

Image {
    id: positionPicker
    property real xValue: 0
    property real yValue: 0

    x: parent.width * xValue - positionPicker.width / 2
    y: parent.height * yValue - positionPicker.height / 2

    property alias pressed: mouseArea.pressed

    source: pressed ? "images/slider_handle_pressed.png" : "images/slider_handle.png"

    MouseArea {
        id: mouseArea

        property real startX
        property real startY

        anchors.fill: parent
        onPressed: {
            startX = mouseX;
            startY = mouseY;
        }

        onPositionChanged: {
            xValue = (positionPicker.x + positionPicker.width / 2 + mouseX - startX) / positionPicker.parent.width;
            yValue = (positionPicker.y + positionPicker.height / 2 + mouseY - startY) / positionPicker.parent.height;
        }
    }
}