/// <summary>
/// Decodes an mxCell and uses the enclosing XML node as
/// the user object for the cell (inversion).
/// </summary>
public override XmlNode BeforeDecode(mxCodec dec, XmlNode node, Object obj)
{
XmlElement inner = (XmlElement)node;
if (obj is mxCell)
{
mxCell cell = (mxCell)obj;
String classname = GetName();
if (!node.Name.Equals(classname))
{
// Passes the inner graphical annotation node to the
// object codec for further processing of the cell.
XmlNode tmp = inner.GetElementsByTagName(classname)[0];
if (tmp != null && tmp.ParentNode == node)
{
inner = (XmlElement)tmp;
// Removes annotation and whitespace from node
XmlNode tmp2 = tmp.PreviousSibling;
while (tmp2 != null && tmp2.NodeType == XmlNodeType.Text)
{
XmlNode tmp3 = tmp2.PreviousSibling;
if (tmp2.Value.Trim().Length == 0)
{
tmp2.ParentNode.RemoveChild(tmp2);
}
tmp2 = tmp3;
}
// Removes more whitespace
tmp2 = tmp.NextSibling;
while (tmp2 != null && tmp2.NodeType == XmlNodeType.Text)
{
XmlNode tmp3 = tmp2.PreviousSibling;
if (tmp2.Value.Trim().Length == 0)
{
tmp2.ParentNode.RemoveChild(tmp2);
}
tmp2 = tmp3;
}
tmp.ParentNode.RemoveChild(tmp);
}
else
{
inner = null;
}
// Creates the user object out of the XML node
XmlElement value = (XmlElement)node.CloneNode(true);
cell.Value = value;
String id = value.GetAttribute("id");
if (id != null)
{
cell.Id = id;
value.RemoveAttribute("id");
}
}
else
{
cell.Id = ((XmlElement)node).GetAttribute("id");
}
// Preprocesses and removes all Id-references
// in order to use the correct encoder (this)
// for the known references to cells (all).
if (inner != null && idrefs != null)
{
foreach (string attr in idrefs)
{
string rf = inner.GetAttribute(attr);
if (rf != null && rf.Length > 0)
{
inner.RemoveAttribute(attr);
Object tmp = (dec.Objects.ContainsKey(rf)) ? dec.Objects[rf] : null;
if (tmp == null)
{
tmp = dec.Lookup(rf);
}
if (tmp == null)
{
// Needs to decode forward reference
XmlNode element = dec.GetElementById(rf);
if (element != null)
{
mxObjectCodec decoder = mxCodecRegistry
.GetCodec(element.Name);
if (decoder == null)
{
decoder = this;
}
tmp = decoder.Decode(dec, element);
}
}
SetFieldValue(obj, attr, tmp);
}
}
}
}
return(inner);
}
/// <summary>
/// Decodes an mxCell and uses the enclosing XML node as
/// the user object for the cell (inversion).
/// </summary>
public override XmlNode BeforeDecode(mxCodec dec, XmlNode node, Object obj)
{
XmlElement inner = (XmlElement)node;
if (obj is mxCell)
{
mxCell cell = (mxCell)obj;
String classname = GetName();
if (!node.Name.Equals(classname))
{
// Passes the inner graphical annotation node to the
// object codec for further processing of the cell.
XmlNode tmp = inner.GetElementsByTagName(classname)[0];
if (tmp != null && tmp.ParentNode == node)
{
inner = (XmlElement)tmp;
// Removes annotation and whitespace from node
XmlNode tmp2 = tmp.PreviousSibling;
while (tmp2 != null && tmp2.NodeType == XmlNodeType.Text)
{
XmlNode tmp3 = tmp2.PreviousSibling;
if (tmp2.Value.Trim().Length == 0)
{
tmp2.ParentNode.RemoveChild(tmp2);
}
tmp2 = tmp3;
}
// Removes more whitespace
tmp2 = tmp.NextSibling;
while (tmp2 != null && tmp2.NodeType == XmlNodeType.Text)
{
XmlNode tmp3 = tmp2.PreviousSibling;
if (tmp2.Value.Trim().Length == 0)
{
tmp2.ParentNode.RemoveChild(tmp2);
}
tmp2 = tmp3;
}
tmp.ParentNode.RemoveChild(tmp);
}
else
{
inner = null;
}
// Creates the user object out of the XML node
XmlElement value = (XmlElement)node.CloneNode(true);
cell.Value = value;
String id = value.GetAttribute("id");
if (id != null)
{
cell.Id = id;
value.RemoveAttribute("id");
}
}
else
{
cell.Id = ((XmlElement)node).GetAttribute("id");
}
// Preprocesses and removes all Id-references
// in order to use the correct encoder (this)
// for the known references to cells (all).
if (inner != null && idrefs != null)
{
foreach (string attr in idrefs)
{
string rf = inner.GetAttribute(attr);
if (rf != null && rf.Length > 0)
{
inner.RemoveAttribute(attr);
Object tmp = (dec.Objects.ContainsKey(rf)) ? dec.Objects[rf] : null;
if (tmp == null)
{
tmp = dec.Lookup(rf);
}
if (tmp == null)
{
// Needs to decode forward reference
XmlNode element = dec.GetElementById(rf);
if (element != null)
{
mxObjectCodec decoder = mxCodecRegistry
.GetCodec(element.Name);
if (decoder == null)
{
decoder = this;
}
tmp = decoder.Decode(dec, element);
}
}
SetFieldValue(obj, attr, tmp);
}
}
}
}
return inner;
}
