private void RemoveEdgeButton_Click(object sender, EventArgs e)
{
SelectTwoVerticesDialog selectEdge = new SelectTwoVerticesDialog();
bool repeate = true;
do
{
if (DialogResult.OK == selectEdge.ShowDialog())
{
try
{
// remove edge
_forestGraph.RemoveEdge(selectEdge.StartVertex, selectEdge.TargetVertex);
_graphPath.Clear();
_saved = false;
_dijkstra.Invalidate();
RegenerateTrajectoryMatrix();
}
catch (Exception ex)
{
ShowMessage(ex.Message);
continue;
}
graphCanvas.Invalidate();
}
repeate = false;
} while (repeate);
}
private void FindRouteButton_Click(object sender, EventArgs e)
{
SelectTwoVerticesDialog selectPath = new SelectTwoVerticesDialog(true);
bool repeate = true;
do
{
if (DialogResult.OK == selectPath.ShowDialog())
{
// start and target points are same
if (selectPath.StartVertex == selectPath.TargetVertex &&
_forestGraph.HasVertex(selectPath.TargetVertex))
{
ShowMessage(Resources.PathToSameVertex, MessageBoxIcon.Information);
continue;
}
// start or target point (or both) do not exist
if (!_forestGraph.HasVertex(selectPath.StartVertex) ||
!_forestGraph.HasVertex(selectPath.TargetVertex))
{
ShowMessage(Resources.SelectedVerticesNotExist, MessageBoxIcon.Warning);
continue;
}
try
{
if (selectPath.Starship == true)
{
_graphPath = new List <string>()
{
selectPath.StartVertex, selectPath.TargetVertex
};
graphCanvas.Invalidate();
ShowMessage(Resources.UsingSpaceship, MessageBoxIcon.Warning, "EASTER EGG");
}
else
{
// find and store path
_graphPath.Clear();
var path = _dijkstra.FindPaths(selectPath.StartVertex).GetPath(selectPath.TargetVertex);
if (path.Count > 0)
{
_graphPath = path;
graphCanvas.Invalidate();
}
else
{
ShowMessage(Resources.PathNotExists, MessageBoxIcon.Warning);
}
}
}
catch (Exception ex)
{
ShowMessage(ex.Message);
continue;
}
graphCanvas.Invalidate();
}
repeate = false;
} while (repeate);
}
