public Nodes DeserializeFromString(string sNodesXml, ITreemapComponent oTreemapComponent)
{
Debug.Assert(sNodesXml != null);
Debug.Assert(oTreemapComponent != null);
AssertValid();
StringReader input = new StringReader(sNodesXml);
XmlTextReader xmlTextReader = new XmlTextReader(input);
xmlTextReader.WhitespaceHandling = WhitespaceHandling.Significant;
Nodes nodes = null;
try
{
xmlTextReader.IsStartElement("Nodes");
bool isEmptyElement = xmlTextReader.IsEmptyElement;
nodes = new Nodes(null);
DeserializeNodes(xmlTextReader, oTreemapComponent, nodes);
if ((!isEmptyElement && xmlTextReader.NodeType != XmlNodeType.EndElement) || xmlTextReader.Name != "Nodes")
{
throw new ApplicationException(string.Format("The top-level {0} XML element is missing a closing element.", "Nodes"));
}
}
catch (Exception innerException)
{
throw new ApplicationException("ITreemapComponent.NodesXml: The XML string is not in the expected format.", innerException);
}
finally
{
xmlTextReader.Close();
}
return(nodes);
}
public string SerializeToString(Nodes oNodes, ITreemapComponent oTreemapComponent)
{
Debug.Assert(oNodes != null);
Debug.Assert(oTreemapComponent != null);
AssertValid();
StringWriter stringWriter = new StringWriter();
XmlTextWriter xmlTextWriter = new XmlTextWriter(stringWriter);
xmlTextWriter.Formatting = Formatting.Indented;
SerializeNodes(oNodes, xmlTextWriter);
xmlTextWriter.Close();
return(stringWriter.ToString());
}
protected Node DeserializeNode(XmlTextReader oXmlTextReader, ITreemapComponent oTreemapComponent)
{
Debug.Assert(oXmlTextReader != null);
Debug.Assert(oXmlTextReader.NodeType == XmlNodeType.Element);
Debug.Assert(oXmlTextReader.Name == "Node");
Debug.Assert(oTreemapComponent != null);
this.AssertValid();
string text = SerializationUtil.DeserializeRequiredStringAttribute(oXmlTextReader, "Node", "Text");
float sizeMetric = SerializationUtil.DeserializeRequiredSingleAttribute(oXmlTextReader, "Node", "SizeMetric");
float colorMetric = SerializationUtil.DeserializeRequiredSingleAttribute(oXmlTextReader, "Node", "ColorMetric");
Color absoluteColor = Color.FromArgb(SerializationUtil.DeserializeRequiredInt32Attribute(oXmlTextReader, "Node", "AbsoluteColor"));
string toolTip = SerializationUtil.DeserializeRequiredStringAttribute(oXmlTextReader, "Node", "ToolTip");
string attribute = oXmlTextReader.GetAttribute("Tag");
Node node = new Node(text, sizeMetric, colorMetric, attribute, toolTip);
switch (oTreemapComponent.NodeColorAlgorithm)
{
case NodeColorAlgorithm.UseColorMetric:
{
break;
}
case NodeColorAlgorithm.UseAbsoluteColor:
{
node.AbsoluteColor = absoluteColor;
break;
}
default:
{
Debug.Assert(false);
break;
}
}
if (!oXmlTextReader.Read() || oXmlTextReader.NodeType != XmlNodeType.Element || oXmlTextReader.Name != "Nodes")
{
throw new ApplicationException(string.Format("A {0} XML element is missing a required {1} child.", "Node", "Nodes"));
}
this.DeserializeNodes(oXmlTextReader, oTreemapComponent, node.Nodes);
if (!oXmlTextReader.Read() || oXmlTextReader.NodeType != XmlNodeType.EndElement || oXmlTextReader.Name != "Node")
{
throw new ApplicationException(string.Format("A {0} XML element is missing a closing element.", "Node"));
}
return(node);
}
protected void DeserializeNodes(XmlTextReader oXmlTextReader, ITreemapComponent oTreemapComponent, Nodes oNodes)
{
Debug.Assert(oXmlTextReader != null);
Debug.Assert(oXmlTextReader.NodeType == XmlNodeType.Element);
Debug.Assert(oXmlTextReader.Name == "Nodes");
Debug.Assert(oTreemapComponent != null);
Debug.Assert(oNodes != null);
AssertValid();
oNodes.EmptySpace.SizeMetric = SerializationUtil.DeserializeRequiredSingleAttribute(oXmlTextReader, "Nodes", "EmptySizeMetric");
if (oXmlTextReader.IsEmptyElement)
{
return;
}
while (oXmlTextReader.Read())
{
switch (oXmlTextReader.NodeType)
{
case XmlNodeType.Element:
if (oXmlTextReader.Name != "Node")
{
throw new ApplicationException(string.Format("A {0} XML element has an unexpected child node named {1}. Only {2} child nodes are allowed.", "Nodes", oXmlTextReader.Name, "Node"));
}
oNodes.Add(DeserializeNode(oXmlTextReader, oTreemapComponent));
if (oXmlTextReader.NodeType != XmlNodeType.EndElement || oXmlTextReader.Name != "Node")
{
throw new ApplicationException(string.Format("A {0} XML element is missing a closing element.", "Node"));
}
break;
case XmlNodeType.EndElement:
if (oXmlTextReader.Name != "Nodes")
{
throw new ApplicationException(string.Format("A {0} XML element is missing a closing element.", "Nodes"));
}
return;
default:
throw new ApplicationException(string.Format("A {0} XML element has an unexpected child node of type {1}. Only {2} child nodes are allowed.", "Nodes", oXmlTextReader.NodeType, "Node"));
}
}
}