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";
}
public static GOM_Link CreateLink(GOM_Interface_Graphic_Object startObj, GOM_Point startPt, GOM_Interface_Graphic_Object endObj, GOM_Point endPt, GOM_Points keyPoints)
{
GOM_Style_Drawing drawing = new GOMLib.GOM_Style_Drawing();
drawing.drawingStyle.Color = System.Drawing.Color.Gray;
GOM_Link link = new GOMLib.GOM_Link(startObj, startPt,
endObj, endPt,
drawing,
GOMLib.GOM_Linking_Style.Line,
GOMLib.GOM_Terminal_Style.None,
GOMLib.GOM_Terminal_Style.None);
if ( keyPoints!=null && keyPoints.Count>0 )
{
link.m_linkingStyle = GOMLib.GOM_Linking_Style.Polyline;
link.m_keyPts = keyPoints;
}
return link;
}
public static GOM_Link CreateLink(GOM_Interface_Graphic_Object startObj, GOM_Point startPt, GOM_Interface_Graphic_Object endObj, GOM_Point endPt)
{
return CreateLink(startObj, startPt, endObj, endPt, null);
}
public static void ScaleObject(GOM_Interface_Graphic_Object obj, float maxWidth, float maxHeight)
{
float ratio;
ratio = System.Math.Min(maxWidth / obj.width, maxHeight / obj.height);
obj.width *= ratio;
obj.height *= ratio;
}
/// <summary>
/// The constructor of GOM_Rotation_Constraint
/// </summary>
/// <param name="obj">The graphic object to be resized</param>
/// <param name="pt">The south east resizing point</param>
public GOM_Rotation_Constraint(GOM_Interface_Graphic_Object obj, GOM_Point pt)
{
m_obj = obj;
m_pt = pt;
}
/// <summary>
/// The constructor of GOM_Resizing_SW_Constraint
/// </summary>
/// <param name="obj">The graphic object to be resized</param>
/// <param name="pt">The south east resizing point</param>
public GOM_Resizing_SW_Constraint(GOM_Interface_Graphic_Object obj, GOM_Point pt)
{
m_obj = obj;
m_pt = pt;
}
/// <summary>
/// Add a graphic object into the list
/// </summary>
/// <param name="val">The graphic object being stored</param>
public void Add(GOM_Interface_Graphic_Object val)
{
rgObject.Add(val);
}
public void Remove(GOM_Interface_Graphic_Object val)
{
rgObject.Remove(val);
}
public void Insert(GOM_Interface_Graphic_Object val, int idx)
{
rgObject.Insert(idx, val);
}
public bool Contains(GOM_Interface_Graphic_Object val)
{
return rgObject.Contains(val);
}
private bool CalculatePointLocation(ref System.Drawing.PointF pt, GOM_Interface_Graphic_Object obj, GOM_Objects rgObjs)
{
bool bTranslated = false;
for (int i = 0; i < rgObjs.Count; i++)
{
if (rgObjs[i].Equals(obj))
{
bTranslated = true;
}
else if (rgObjs[i] is GOM_Object_Group)
{
bTranslated |= CalculatePointLocation(ref pt, obj, ((GOM_Object_Group)rgObjs[i]).rgObjects);
}
if (bTranslated)
{
pt = rgObjs[i].PointToCanvas(pt);
break;
}
}
return bTranslated;
}
/// <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>
/// Indicates whether this link is linked with an specilized object.
/// </summary>
/// <param name="obj">The object.</param>
/// <returns>Whether this link is linked with an specilized object.</returns>
public bool LinkWith(GOM_Interface_Graphic_Object obj)
{
if (m_startObj.Equals(obj) || m_endObj.Equals(obj))
{
return true;
}
else if (obj is GOM_Object_Group)
{
GOM_Object_Group objGroup = ((GOM_Object_Group)obj);
for (int i = 0; i < objGroup.rgObjects.Count; i++)
{
if (LinkWith(objGroup.rgObjects[i]))
{
return true;
}
}
}
return false;
}
