#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2011 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
 *
 * This file is part of HeuristicLab.
 *
 * HeuristicLab is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * HeuristicLab 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
 */
#endregion

using System;
using System.Drawing;
using System.Xml;

namespace HeuristicLab.Persistence.Default.Xml.Primitive {
  internal sealed class Font2XmlSerializer : PrimitiveXmlSerializerBase<Font> {

    public override XmlString Format(Font font) {
      XmlDocument doc = new XmlDocument();
      XmlNode fontNode = doc.CreateElement("Font");
      fontNode.Attributes.Append(doc.CreateAttribute("Name"));
      fontNode.Attributes.Append(doc.CreateAttribute("Size"));
      fontNode.Attributes.Append(doc.CreateAttribute("Style"));
      if (font != null) {
        fontNode.Attributes["Name"].Value = font.Name;
        fontNode.Attributes["Size"].Value = font.Size.ToString();
        fontNode.Attributes["Style"].Value = font.Style.ToString("d");
      }
      return new XmlString(fontNode.OuterXml);
    }

    public override Font Parse(XmlString fontData) {
      XmlTextReader tr = new XmlTextReader(fontData.Data, XmlNodeType.Element, null);
      if (!tr.Read() || tr.Name != "Font") return null;
      string name = tr.GetAttribute("Name");
      if (string.IsNullOrEmpty(name)) return null;
      float size = 12.0f;
      if (!float.TryParse(tr.GetAttribute("Size"), out size)) return null;
      FontStyle style = FontStyle.Regular;
      if (!Enum.TryParse<FontStyle>(tr.GetAttribute("Style"), out style)) return null;
      return new Font(name, size, style);
    }
  }
}