public override object visit(GraphEdge edge)
{
m_edges.Add(edge);
//not looping and not second pass
if (!edge.IsLoop && edge.From == GraphNode.getFirstNonLoopingPredecessor(edge.To))
{
edge.To.getVisited(this);
}
return null;
}
public override object visit(GraphEdge edge)
{
m_edges.Add(edge);
//not looping and not second pass
if (!edge.IsLoop && edge.From == GraphNode.getFirstNonLoopingPredecessor(edge.To))
{
edge.To.getVisited(this);
}
return(null);
}
public override object visit(GraphEdge edge)
{
int frm = m_flatter.Nodes.IndexOf(edge.From);
int to = m_flatter.Nodes.IndexOf(edge.To);
m_cmd.CommandText = "INSERT INTO room_connections (frm, too, chid, type) VALUES (" + frm + ", " + to + ",0 , 0);";
m_cmd.ExecuteNonQuery();
if (!edge.IsLoop && edge.From == GraphNode.getFirstNonLoopingPredecessor(edge.To))
{
edge.To.getVisited(this);
}
return(null);
}
public static GraphNode getFirstNonLoopingPredecessor(GraphNode node)
{
//get the non-looping predecessor
for (int i = 0; i < node.Predecessors.Count; ++i)
{
GraphEdge edge = (GraphEdge)node.Predecessors[i];
if (!edge.IsLoop)
{
return(edge.From);
}
}
return(null);
}
public override object visit(GraphEdge edge)
{
if (edge.IsLoop || edge.From != GraphNode.getFirstNonLoopingPredecessor(edge.To))
{
return(null);
}
object found = edge.To.getVisited(this);
if (found != null)
{
return(found);
}
return(null);
}
public void addEdge(GraphEdge edge)
{
//TODO
//add from to roots if it was not in graph
//add to to leafs if it was not in graph
//build connections
m_leafs.Remove(edge.From);
//TODO
if (!edge.IsLoop || edge.From.getRoot() != edge.To.getRoot())
m_roots.Remove(edge.To);
edge.From.Successors.Add(edge);
edge.To.Predecessors.Add(edge);
}
public void addEdge(GraphEdge edge)
{
//TODO
//add from to roots if it was not in graph
//add to to leafs if it was not in graph
//build connections
m_leafs.Remove(edge.From);
//TODO
if (!edge.IsLoop || edge.From.getRoot() != edge.To.getRoot())
{
m_roots.Remove(edge.To);
}
edge.From.Successors.Add(edge);
edge.To.Predecessors.Add(edge);
}
public override object visit(GraphEdge edge)
{
Pen p;
if (edge.IsLoop)
p = new Pen(Brushes.Green,2.0f);
else
p = new Pen(Brushes.Black);
p.EndCap = LineCap.ArrowAnchor;
Point p2 = intersectLineCircle(edge.From.Location, edge.To.Location, edge.To.Location, edge.To.Height/2);
Point p1 = intersectLineCircle(edge.To.Location, edge.From.Location, edge.From.Location, edge.From.Height/2);
m_gc.DrawLine(p, p1.X,
p1.Y,
p2.X,
p2.Y);
if (!edge.IsLoop && edge.From == GraphNode.getFirstNonLoopingPredecessor(edge.To))
edge.To.getVisited(this);
return null;
}
public Graph(BinaryReader reader) : this()
{
m_type = Factory.ObjectType.Graph;
ArrayList tmpnodes = new ArrayList();
int count = reader.ReadInt32();
for (int i = 0; i < count; ++i)
{
GraphNode node = (GraphNode)Factory.makeObject(reader);
tmpnodes.Add(node);
addUnconnectedNode(node);
}
count = reader.ReadInt32();
for (int i = 0; i < count; ++i)
{
GraphEdge edge = (GraphEdge)Factory.makeObject(reader);
int from = reader.ReadInt32();
int to = reader.ReadInt32();
edge.From = (GraphNode)tmpnodes[from];
edge.To = (GraphNode)tmpnodes[to];
addEdge(edge);
}
}
public abstract object visit(GraphEdge edge);
public override object visit(GraphEdge edge)
{
int frm = m_flatter.Nodes.IndexOf(edge.From);
int to = m_flatter.Nodes.IndexOf(edge.To);
m_cmd.CommandText = "INSERT INTO room_connections (frm, too, chid, type) VALUES ("+frm+", "+to+",0 , 0);";
m_cmd.ExecuteNonQuery();
if (!edge.IsLoop && edge.From == GraphNode.getFirstNonLoopingPredecessor(edge.To))
edge.To.getVisited(this);
return null;
}
public void connect(GraphNode from, GraphNode to)
{
GraphEdge edge = newEdge(from, to);
addEdge(edge);
}
public abstract object visit(GraphEdge edge);
