﻿/*******************************************************************************
 * You may amend and distribute as you like, but don't remove this header!
 *
 * EPPlus provides server-side generation of Excel 2007/2010 spreadsheets.
 * See http://www.codeplex.com/EPPlus for details.
 *
 * Copyright (C) 2011  Jan Källman
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.

 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
 * See the GNU Lesser General Public License for more details.
 *
 * The GNU Lesser General Public License can be viewed at http://www.opensource.org/licenses/lgpl-license.php
 * If you unfamiliar with this license or have questions about it, here is an http://www.gnu.org/licenses/gpl-faq.html
 *
 * All code and executables are provided "as is" with no warranty either express or implied. 
 * The author accepts no liability for any damage or loss of business that this product may cause.
 *
 * Code change notes:
 * 
 * Author							Change						Date
 * ******************************************************************************
 * Jan Källman		Initial Release		        2009-10-01
 * Jan Källman		License changed GPL-->LGPL 2011-12-16
 *******************************************************************************/
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Text;
using System.Xml;

namespace OfficeOpenXml.Drawing.Chart
{
    /// <summary>
    /// A serie for a scatter chart
    /// </summary>
    public sealed class ExcelScatterChartSerie : ExcelChartSerie
    {
        /// <summary>
        /// Default constructor
        /// </summary>
        /// <param name="chartSeries">Parent collection</param>
        /// <param name="ns">Namespacemanager</param>
        /// <param name="node">Topnode</param>
        /// <param name="isPivot">Is pivotchart</param>
        internal ExcelScatterChartSerie(ExcelChartSeries chartSeries, XmlNamespaceManager ns, XmlNode node, bool isPivot) :
            base(chartSeries, ns, node, isPivot)
        {
            if (chartSeries.Chart.ChartType == eChartType.XYScatterLines ||
                chartSeries.Chart.ChartType == eChartType.XYScatterSmooth)
            {
                Marker = eMarkerStyle.Square;
            }

            if (chartSeries.Chart.ChartType == eChartType.XYScatterSmooth ||
                chartSeries.Chart.ChartType == eChartType.XYScatterSmoothNoMarkers)
            {
                Smooth = 1;
            }
            else if (chartSeries.Chart.ChartType == eChartType.XYScatterLines || chartSeries.Chart.ChartType == eChartType.XYScatterLinesNoMarkers || chartSeries.Chart.ChartType == eChartType.XYScatter)

            {
                Smooth = 0;
            }
        }
        ExcelChartSerieDataLabel _DataLabel = null;
        /// <summary>
        /// Datalabel
        /// </summary>
        public ExcelChartSerieDataLabel DataLabel
        {
            get
            {
                if (_DataLabel == null)
                {
                    _DataLabel = new ExcelChartSerieDataLabel(_ns, _node);
                }
                return _DataLabel;
            }
        }
        const string smoothPath = "c:smooth/@val";
        /// <summary>
        /// Smooth for scattercharts
        /// </summary>
        public int Smooth
        {
            get
            {
                return GetXmlNodeInt(smoothPath);
            }
            internal set
            {
                SetXmlNodeString(smoothPath, value.ToString());
            }
        }
        const string markerPath = "c:marker/c:symbol/@val";
        /// <summary>
        /// Marker symbol 
        /// </summary>
        public eMarkerStyle Marker
        {
            get
            {
                string marker = GetXmlNodeString(markerPath);
                if (marker == "")
                {
                    return eMarkerStyle.None;
                }
                else
                {
                    return (eMarkerStyle)Enum.Parse(typeof(eMarkerStyle), marker, true);
                }
            }
            set
            {
                if (_chartSeries.Chart.ChartType == eChartType.XYScatterLinesNoMarkers ||
                    _chartSeries.Chart.ChartType == eChartType.XYScatterSmoothNoMarkers)
                {
                    throw (new InvalidOperationException("Can't set marker style for this charttype."));
                }
                SetXmlNodeString(markerPath, value.ToString().ToLower(CultureInfo.InvariantCulture));
            }
        }
    }
}