//- persistance ---------------------------------------------------------------
//get source & dest box nums from XML file and get the matching boxes from the canvas
//then get the panel nums from XML and get the matching panels from the boxes
//having the source & dest panels. create a new line between them
//this will create a connection in the backing model, call loadFromXML() on it with XML node to set its properties
public static PatchLine loadFromXML(PatchCanvas canvas, XmlNode lineNode)
{
PatchLine line = null;
try
{
int srcBoxNum = Convert.ToInt32(lineNode.Attributes["sourcebox"].Value);
int srcPanelNum = Convert.ToInt32(lineNode.Attributes["sourcepanel"].Value);
int destBoxNum = Convert.ToInt32(lineNode.Attributes["destbox"].Value);
int destPanelNum = Convert.ToInt32(lineNode.Attributes["destpanel"].Value);
PatchBox sourceBox = canvas.findPatchBox(srcBoxNum);
PatchBox destBox = canvas.findPatchBox(destBoxNum);
if (sourceBox != null && destBox != null)
{
PatchPanel sourcePanel = sourceBox.findPatchPanel(srcPanelNum);
PatchPanel destPanel = destBox.findPatchPanel(destPanelNum);
if (sourcePanel != null && destPanel != null)
{
line = new PatchLine(canvas, sourcePanel, destPanel);
}
}
}
catch (Exception e)
{
throw new PatchLoadException();
}
return(line);
}
public virtual void disconnectLine(PatchLine line)
{
connectors.Remove(line);
}
public virtual void connectLine(PatchLine line)
{
connectors.Add(line);
}