/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** 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:
**
** "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,
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****************************************************************************/

import QtQuick 2.0

Grid {
    id: root

    function checkOrientation() {
        root.spacing = (app.height + app.width) * 0.02

        if (app.width >= app.height) {
            root.columns = 1
            root.anchors.bottom = undefined
            root.anchors.horizontalCenter = undefined
            root.anchors.right = app.right
            root.anchors.verticalCenter = app.verticalCenter
            root.anchors.rightMargin = app.width * 0.02
            root.anchors.bottomMargin = 0
        }
        else {
            root.columns = 3
            root.anchors.right = undefined
            root.anchors.verticalCenter = undefined
            root.anchors.bottom = app.bottom
            root.anchors.horizontalCenter = app.horizontalCenter
            root.anchors.rightMargin = 0
            root.anchors.bottomMargin = app.width * 0.02
        }
    }

    Button {
        id: nextButton
        imageSource: "images/btn_next.png"
        onClicked: canvas.goNext()
    }

    Button {
        id: prevButton
        imageSource: "images/btn_previous.png"
        onClicked: canvas.goPrevious()
    }

    Button {
        id: homeButton
        imageSource: app.navigationState === 0 && !helpscreen.visible ? "images/btn_help.png" : "images/btn_home.png"
        onClicked: {
            if (app.navigationState===0){
                helpscreen.show()
                return;
            }
            canvas.goBack()
        }
    }
}