/// <summary>
/// 加载文件
/// </summary>
/// <param name="filename"></param>
/// <returns></returns>
public bool Load(string filename)
{
try
{
StreamReader sr = new StreamReader(filename);
//XmlTextReader rd = new XmlTextReader(sr);
XmlDocument doc = new XmlDocument();
doc.Load(sr);
sr.Dispose();
XmlElement root = doc.DocumentElement;
if (root.Name != "CanvasDataModel")
{
return(false);
}
m_layers.Clear();
m_undoBuffer.Clear();
m_undoBuffer.Dirty = false;
foreach (XmlElement childnode in root.ChildNodes)
{
if (childnode.Name == "backgroundlayer")
{
XmlUtil.ParseProperties(childnode, m_backgroundLayer);
continue;
}
if (childnode.Name == "gridlayer")
{
XmlUtil.ParseProperties(childnode, m_gridLayer);
continue;
}
if (childnode.Name == "layer")
{
DrawingLayer l = DrawingLayer.NewLayer(childnode as XmlElement);
m_layers.Add(l);
}
if (childnode.Name == "property")
{
XmlUtil.ParseProperty(childnode, this);
}
}
return(true);
}
catch (Exception e)
{
DefaultLayer();
Console.WriteLine("Load exception - {0}", e.Message);
}
return(false);
}
/// <summary>
/// 新绘制图层
/// </summary>
/// <param name="xmlelement"></param>
/// <returns></returns>
public static DrawingLayer NewLayer(XmlElement xmlelement)
{
string id = xmlelement.GetAttribute("Id");
if (id.Length == 0)
{
id = Guid.NewGuid().ToString();
}
DrawingLayer layer = new DrawingLayer(id, string.Empty, Color.White, 0.0f);
foreach (XmlElement node in xmlelement.ChildNodes)
{
XmlUtil.ParseProperty(node, layer);
if (node.Name != "items")
{
continue;
}
foreach (XmlElement itemnode in node.ChildNodes)
{
object item = DataModel.NewDrawObject(itemnode.Name);
if (item == null)
{
continue;
}
if (item != null)
{
XmlUtil.ParseProperties(itemnode, item);
}
if (item is ISerialize)
{
((ISerialize)item).AfterSerializedIn();
}
if (item is IDrawObject)
{
layer.AddObject(item as IDrawObject);
}
}
}
return(layer);
}