/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QML Presentation System.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
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** $QT_END_LICENSE$
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****************************************************************************/


import QtQuick 2.0

Item {
    /*
      Slides can only be instantiated as a direct child of a Presentation {} as they rely on
      several properties there.
     */

    id: slide

    property bool isSlide: true;

    property bool delayPoints: false;
    property int _pointCounter: 0;
    function _advance() {
        if (!parent.allowDelay)
            return false;

        _pointCounter = _pointCounter + 1;
        if (_pointCounter < content.length)
            return true;
        _pointCounter = 0;
        return false;
    }

    property string title;
    property variant content: []
    property string centeredText
    property string writeInText;
    property string notes;
    property alias imageSource: contentImage.source

    property real fontSize: parent.height * 0.05
    property real fontScale: 1

    property real baseFontSize: fontSize * fontScale
    property real titleFontSize: fontSize * 1.2 * fontScale
    property real bulletSpacing: 1

    property real contentWidth: width

    // Define the slide to be the "content area"
    x: parent.width * 0.05
    y: parent.height * 0.2
    width: parent.width * 0.9
    height: parent.height * 0.7

    property real masterWidth: parent.width
    property real masterHeight: parent.height

    property color titleColor: parent.titleColor;
    property color textColor: parent.textColor;
    property string fontFamily: parent.fontFamily;

    visible: false

    Text {
        id: titleText
        font.pixelSize: titleFontSize
        text: title;
        anchors.horizontalCenter: parent.horizontalCenter
        anchors.bottom: parent.top
        anchors.bottomMargin: parent.fontSize * 1.5
        font.bold: true;
        font.family: slide.fontFamily
        color: slide.titleColor
        horizontalAlignment: Text.Center
        z: 1
    }

    Text {
        id: centeredId
        width: parent.width
        anchors.centerIn: parent
        anchors.verticalCenterOffset: - parent.y / 3
        text: centeredText
        horizontalAlignment: Text.Center
        font.pixelSize: baseFontSize
        font.family: slide.fontFamily
        color: slide.textColor
        wrapMode: Text.Wrap
    }

    Text {
        id: writeInTextId
        property int length;
        font.family: slide.fontFamily
        font.pixelSize: baseFontSize
        color: slide.textColor

        anchors.fill: parent;
        wrapMode: Text.Wrap

        text: slide.writeInText.substring(0, length);

        NumberAnimation on length {
            from: 0;
            to: slide.writeInText.length;
            duration: slide.writeInText.length * 30;
            running: slide.visible && parent.visible && slide.writeInText.length > 0
        }

        visible: slide.writeInText != undefined;
    }


    Column {
        id: contentId
        anchors.fill: parent

	Image {
	    id: contentImage
	    
	    width: parent.width
            anchors.centerIn: parent
            anchors.verticalCenterOffset: - parent.y / 3
            
            fillMode: Image.PreserveAspectFit
	}
    }

}