/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

import QtQuick 1.0

/* A toggle button component. */
Rectangle {
    id: toggleButton

    property url offImageSource: ""
    property url onImageSource: ""
    property alias imageSource: buttonImage.source

    signal selected()
    signal pushed()

    color: "transparent"
    state: "unPressed"
    onStateChanged: {
        if (state == "pressed") {
            selected()
        }
    }

    Image {
        id: buttonImage

        smooth: true
        anchors.fill: parent
    }
    MouseArea {
        id: mouseArea

        anchors.fill: parent
        onPressed: {
            if (parent.state == "unPressed") {
                pushed()
            }
        }
    }

    states: [
        State {
            name: "pressed"
            PropertyChanges {
                target: toggleButton
                scale: 0.95
                imageSource: onImageSource
            }
        },
        State {
            name: "unPressed"
            PropertyChanges {
                target: toggleButton
                scale: 1/0.95
                imageSource: offImageSource
            }
        }
    ]

    transitions: [
        Transition {
            from: "unPressed"
            to: "pressed"
            reversible: true
            PropertyAnimation {
                target: toggleButton
                properties: "scale"
                duration: 100
            }
        }
    ]
}