/// <summary>
/// Returns the adjacent shapes on the basis of a structuring IGraph, usually
/// what is being returned by Prim's algorithm.
/// This is equal to the adjacent nodes if the graph is a tree.
/// Whether a connected nodes is really a 'child' is the sense of being positioned
/// on a lower level cannot be decided here but belongs to the layout
/// </summary>
/// <param name="structure"></param>
/// <param name="shape"></param>
/// <returns>A ShapeCollection of shapes</returns>
private ShapeCollection AdjacentNodes(IGraph structure, Shape shape)
{
try
{
mSite.OutputInfo("Adjacents of '" + shape.Text + "':");
int index = (int)shape.Tag;
IVertex vertex;
//TODO: take direction into account
IEnumerator numer = structure.GetVertex(index).Successors.GetEnumerator();
ShapeCollection shapes = new ShapeCollection();
while (numer.MoveNext())
{
vertex = numer.Current as IVertex;
shapes.Add(nodes[vertex.Number]);
mSite.OutputInfo("\t - '" + nodes[vertex.Number].Text + "'");
}
numer = structure.GetVertex(index).Predecessors.GetEnumerator();
while (numer.MoveNext())
{
vertex = numer.Current as IVertex;
shapes.Add(nodes[vertex.Number]);
mSite.OutputInfo("\t - '" + nodes[vertex.Number].Text + "'");
}
return(shapes);
}
catch
{
//don't return null, make the collection just empty
return(new ShapeCollection());
}
}
/// <summary>
/// Inserts a new object into the plex.
/// </summary>
/// <param name="so">the object to insert</param>
/// <remarks>Note that you can add only one shape at a time.
/// </remarks>
internal protected void Insert(Shape so)
{
//so.Insert(this);
so.Site = Site;
mShapes.Add(so);
so.SetLayer(mCurrentLayer.Name);
so.AddProperties();
Site.RaiseOnShapeAdded(so);
}
/// <summary>
/// return the shapes of layer
/// </summary>
/// <param name="layerName"></param>
/// <returns></returns>
public ShapeCollection ShapesOfLayer(string layerName)
{
ShapeCollection shapes = new ShapeCollection();
GraphLayer layer = Layers[layerName];
if (layer != null)
{
foreach (Shape shape in Shapes)
{
if (shape.Layer == layer)
{
shapes.Add(shape);
}
}
}
return(shapes);
}
/// <summary>
/// Implements the copy function to the clipboard
/// </summary>
/// <remarks>
/// This doesn't work, bug in Clipboard object, hopefully fixed in Net v2
///</remarks>
public void Copy()
{
ShapeCollection ar = new ShapeCollection();
foreach(Shape so in extract.Shapes)
{
if(so.IsSelected)
{
ar.Add(so);
}
}
if(ar.Count>0)
{
DataObject blurb = new DataObject(format.Name,extract);
Clipboard.SetDataObject(blurb);
}
}
public virtual ShapeCollection GetChildShapes()
{
ShapeCollection sc = new ShapeCollection();
foreach (Connector cr in this.Connectors) {
foreach (Connection cn in cr.Connections) {
sc.Add(cn.From == cr ? cn.To.BelongsTo : cn.From.BelongsTo);
}
}
return sc;
}