private void buttonNewEdge_Click(object sender, EventArgs e)
{
NodeWrapper current_node = CurrentSelectedNodeWrapper();
if (current_node == null)
{
return;
}
TargetChooser new_edge_dlg = new TargetChooser();
new_edge_dlg.InitForNewEdge(CurrentGraph, current_node.GraphNode, "Choose destination node for the new edge");
new_edge_dlg.ShowDialog();
if (new_edge_dlg.DialogResult == System.Windows.Forms.DialogResult.OK)
{
current_node.GraphNode.ConnectTo(new_edge_dlg.ChosenNode);
RebuildEdgeList();
}
}
private void buttonFindPath_Click(object sender, EventArgs e)
{
NodeWrapper current_node = CurrentSelectedNodeWrapper();
if (current_node == null)
{
return;
}
TargetChooser destination_dlg = new TargetChooser();
destination_dlg.OfferAllNodes(CurrentGraph, "choose destination node for the path"); //, current_node.GraphNode);
destination_dlg.ShowDialog();
if (destination_dlg.DialogResult == System.Windows.Forms.DialogResult.OK)
{
if (destination_dlg.ChosenNode == current_node.GraphNode)
{
MessageBox.Show("That's the same node");
}
else
{
List <GlGraphEdge> short_path = CurrentGraph.ShortestPath(current_node.GraphNode, destination_dlg.ChosenNode);
if (short_path == null)
{
MessageBox.Show("No path found");
}
else
{
string path_desc = NodeWrapper.GetNodeName(current_node.GraphNode);
foreach (GlGraphEdge one_step in short_path)
{
path_desc += "->" + NodeWrapper.GetNodeName(one_step.TargetNode);
}
MessageBox.Show(path_desc);
}
}
}
}
private void buttonDeleteNode_Click(object sender, EventArgs e)
{
NodeWrapper node_to_delete = CurrentSelectedNodeWrapper();
if (node_to_delete == null)
{
return;
}
if (!node_to_delete.DeleteNodeFromGraphSafely())
{
string confirm_msg = "That node has edges either incoming or outgoing. Delete anyway, along with all related edges?";
if (MessageBox.Show(confirm_msg, "Confirm", MessageBoxButtons.OKCancel) == System.Windows.Forms.DialogResult.Cancel)
{
return;
}
else
{
node_to_delete.DeleteNodeFromGraphRegardless();
}
}
RebuildNodeList();
}