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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt 5 launch demo.
**
** $QT_BEGIN_LICENSE:BSD$
** 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 Digia Plc 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."
**
** $QT_END_LICENSE$
**
****************************************************************************/


import QtQuick 2.0
import "presentation"

Presentation {

    id: deck

    width: 1280
    height: 720

    property bool inTransition: false;

    property variant fromSlide;
    property variant toSlide;

    property int transitionTime: 500;

    SequentialAnimation {
        id: forwardTransition
        PropertyAction { target: deck; property: "inTransition"; value: true }
        PropertyAction { target: toSlide; property: "visible"; value: true }
        ParallelAnimation {
            NumberAnimation { target: fromSlide; property: "opacity"; from: 1; to: 0; duration: deck.transitionTime; easing.type: Easing.OutQuart }
            NumberAnimation { target: fromSlide; property: "scale"; from: 1; to: 1.1; duration: deck.transitionTime; easing.type: Easing.InOutQuart }
            NumberAnimation { target: toSlide; property: "opacity"; from: 0; to: 1; duration: deck.transitionTime; easing.type: Easing.InQuart }
            NumberAnimation { target: toSlide; property: "scale"; from: 0.7; to: 1; duration: deck.transitionTime; easing.type: Easing.InOutQuart }
        }
        PropertyAction { target: fromSlide; property: "visible"; value: false }
        PropertyAction { target: fromSlide; property: "scale"; value: 1 }
        PropertyAction { target: deck; property: "inTransition"; value: false }
    }
    SequentialAnimation {
        id: backwardTransition
        running: false
        PropertyAction { target: deck; property: "inTransition"; value: true }
        PropertyAction { target: toSlide; property: "visible"; value: true }
        ParallelAnimation {
            NumberAnimation { target: fromSlide; property: "opacity"; from: 1; to: 0; duration: deck.transitionTime; easing.type: Easing.OutQuart }
            NumberAnimation { target: fromSlide; property: "scale"; from: 1; to: 0.7; duration: deck.transitionTime; easing.type: Easing.InOutQuart }
            NumberAnimation { target: toSlide; property: "opacity"; from: 0; to: 1; duration: deck.transitionTime; easing.type: Easing.InQuart }
            NumberAnimation { target: toSlide; property: "scale"; from: 1.1; to: 1; duration: deck.transitionTime; easing.type: Easing.InOutQuart }
        }
        PropertyAction { target: fromSlide; property: "visible"; value: false }
        PropertyAction { target: fromSlide; property: "scale"; value: 1 }
        PropertyAction { target: deck; property: "inTransition"; value: false }
    }

    function switchSlides(from, to, forward)
    {
        if (deck.inTransition)
            return false

        deck.fromSlide = from
        deck.toSlide = to

        if (forward)
            forwardTransition.running = true
        else
            backwardTransition.running = true

        return true
    }
}