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/****************************************************************************
**
** This file is a part of QtChickenWranglers.
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).*
** All rights reserved.
** Contact:  Nokia Corporation (qt-info@nokia.com)
**
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in the
**     documentation and/or other materials provided with the distribution.
**
**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
**     the names of its contributors may be used to endorse or promote
**     products derived from this software without specific prior written
**     permission.
**
**  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
**  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
**  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
**  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
**  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
**  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
**  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
**  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
**  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
**  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
**  ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
**  POSSIBILITY OF SUCH DAMAGE."
**
****************************************************************************/


import Qt 4.7

Rectangle {
    id: screen

    signal transitionFinished(bool visible)

    anchors.fill: parent
    opacity: 0

    function show() {
        screen.state = "visible"
    }

    function hide() {
        screen.state = "hidden"
    }

    states {
        State {
            name: "visible"
            PropertyChanges { target: screen; opacity: 1 }
        }
        State {
            name: "hidden"
            PropertyChanges { target: screen; opacity: 0 }
        }
    }

    Behavior on opacity {
        NumberAnimation {
            duration: 200

            onRunningChanged: {
                if (!running) {
                    if (opacity == 1)
                        transitionFinished(true)
                    else
                        transitionFinished(false)
                }
            }
        }
    }
}