public GOM_Link(System.Xml.XmlNode node, GOM_ResourceArrays resources)
{
m_startStyle = GOMLib.GOM_Terminal_Style.None;
m_endStyle = GOMLib.GOM_Terminal_Style.Triangle;
m_drawingStyle = new GOMLib.GOM_Style_Drawing();
m_linkingStyle = GOM_Linking_Style.Line;
m_keyPts = new GOM_Points();
m_drawingStyle.id = "default";
LoadFromXML(node, resources);
}
public GOM_Link(GOM_Interface_Graphic_Object startObj, GOM_Point startPt, GOM_Interface_Graphic_Object endObj, GOM_Point endPt, GOM_Style_Drawing drawingStyle, GOM_Linking_Style linkingStyle, GOM_Terminal_Style startStyle, GOM_Terminal_Style endStyle)
{
m_startObj = startObj;
m_endObj = endObj;
m_startPt = startPt;
m_endPt = endPt;
m_startStyle = startStyle;
m_endStyle = endStyle;
m_drawingStyle = drawingStyle;
m_linkingStyle = linkingStyle;
m_keyPts = new GOM_Points();
m_drawingStyle.id = "default";
}
/// <summary>
/// Load the link from XmlNode.
/// </summary>
/// <param name="node">The XmlNode.</param>
/// <param name="resources">GOM resource.</param>
public void LoadFromXML(System.Xml.XmlNode node, GOM_ResourceArrays resources)
{
GOM_Utility.VerifyXmlNode(node, GOM_TAGS.CONNECTION);
for( int i=0; i<node.Attributes.Count; i++ )
{
// if ( string.Compare(node.Attributes[i].Name,GOM_TAGS.DRAWING_STYLE) == 0 )
// {
// this.m_drawingStyle = resources.DrawingStyles[node.Attributes[i].Value];
// }
if ( string.Compare(node.Attributes[i].Name,GOM_TAGS.LINKING_STYLE) == 0 )
{
this.m_linkingStyle = ConvertStringToLinkingStyle(node.Attributes[i].Value);
}
}
GOM_Utility.VerifyXmlNode(node.ChildNodes[0], GOM_TAGS.POINT);
GOM_Utility.VerifyXmlNode(node.ChildNodes[1], GOM_TAGS.POINT);
// 1st pass
// objectID
for( int i=0; i<node.ChildNodes[0].Attributes.Count; i++ )
{
if ( string.Compare(node.ChildNodes[0].Attributes[i].Name, GOM_TAGS.OBJECTID) == 0 )
{
this.m_startObj = GOM_Utility.RecursiveFindObject(node.ChildNodes[0].Attributes[i].Value, resources.Objects);
}
}
for( int i=0; i<node.ChildNodes[1].Attributes.Count; i++ )
{
if ( string.Compare(node.ChildNodes[1].Attributes[i].Name, GOM_TAGS.OBJECTID) == 0 )
{
this.m_endObj = GOM_Utility.RecursiveFindObject(node.ChildNodes[1].Attributes[i].Value, resources.Objects);
}
}
if ( m_startObj==null || m_endObj==null )
{
throw new System.Xml.XmlException("Missing points in the connection.");
}
// if ( !(m_startObj is GOM_Object_Primitive) || !(m_endObj is GOM_Object_Primitive) )
// {
// throw new System.Xml.XmlException("Terminal points' objects are not all primitives.");
// }
// 2nd pass
// pointID
// terminalStyle
for( int i=0; i<node.ChildNodes[0].Attributes.Count; i++ )
{
if ( string.Compare(node.ChildNodes[0].Attributes[i].Name, GOM_TAGS.POINTID) == 0 )
{
this.m_startPt = m_startObj.GetPointByName(node.ChildNodes[0].Attributes[i].Value);
}
if ( string.Compare(node.ChildNodes[0].Attributes[i].Name, GOM_TAGS.TERMINAL_STYLE) == 0 )
{
this.m_startStyle = ConvertStringToTerminalStyle(node.ChildNodes[0].Attributes[i].Value);
}
}
for( int i=0; i<node.ChildNodes[1].Attributes.Count; i++ )
{
if ( string.Compare(node.ChildNodes[1].Attributes[i].Name, GOM_TAGS.POINTID) == 0 )
{
this.m_endPt = m_endObj.GetPointByName(node.ChildNodes[1].Attributes[i].Value);
}
if ( string.Compare(node.ChildNodes[1].Attributes[i].Name, GOM_TAGS.TERMINAL_STYLE) == 0 )
{
this.m_endStyle = ConvertStringToTerminalStyle(node.ChildNodes[1].Attributes[i].Value);
}
}
if ( m_startPt==null || m_endPt==null )
{
throw new System.Xml.XmlException("Cannot find find terminal points.");
}
// Drawing style
this.m_drawingStyle.LoadFromXML( node.ChildNodes[2], resources );
// Key points
GOM_Utility.VerifyXmlNode(node.ChildNodes[3], GOM_TAGS.KEYPOINTS);
for(int i=0; i<node.ChildNodes[3].ChildNodes.Count; i++ )
{
if ( string.Compare(node.ChildNodes[3].ChildNodes[i].Name, GOM_TAGS.POINT, true) == 0 )
{
GOM_Point keyPoint = new GOM_Point();
for(int j=0; j<node.ChildNodes[3].ChildNodes[i].Attributes.Count; j++ )
{
if ( string.Compare(node.ChildNodes[3].ChildNodes[i].Attributes[j].Name, GOM_TAGS.X, true) == 0 )
{
keyPoint.x = float.Parse(node.ChildNodes[3].ChildNodes[i].Attributes[j].Value);
}
if ( string.Compare(node.ChildNodes[3].ChildNodes[i].Attributes[j].Name, GOM_TAGS.Y, true) == 0 )
{
keyPoint.y = float.Parse(node.ChildNodes[3].ChildNodes[i].Attributes[j].Value);
}
}
m_keyPts.Add(keyPoint);
}
}
}
/// <summary>
/// Convert the LinkingStyle to a string.
/// </summary>
/// <param name="linkingStyle">The LinkingStyle.</param>
/// <returns>A string</returns>
public string ConvertLinkingStyleToString( GOM_Linking_Style linkingStyle )
{
switch(linkingStyle)
{
case GOM_Linking_Style.Line:
return "line";
case GOM_Linking_Style.Polyline:
return "polyline";
case GOM_Linking_Style.Curve:
return "curve";
}
throw new ArgumentException("Unknown LinkingStyle["+linkingStyle.ToString()+"].");
}
