//adding edge
private void btn_add_edge_Click(object sender, EventArgs e)
{
_selectedVerticle = null;
foreach (var ve in listOfVerticles)
{
ve.isSelected = false;
}
Drawing_panel.Invalidate();
var aef = new AddEdgeForm {
Verticles = listOfVerticles, Edges = listOfEdges
};
if (listOfVerticles.Count < 2)
{
MessageBox.Show("В графе менее 2 вершин, создать ребро нельзя.", "Ошибка!");
return;
}
aef.ShowDialog();
if (aef.DialogResult != DialogResult.OK)
{
return;
}
listOfEdges.Add(aef.Return);
listOfVerticles.Find(x => x.Equals(aef.Return.A)).connections++;
listOfVerticles.Find(x => x.Equals(aef.Return.B)).connections++;
RenewLists();
RandomizeWeightsPositions(listOfEdges);
Drawing_panel.Refresh();
}
private void Drawing_panel_MouseDown(object sender, MouseEventArgs e)
{
if (lb_verticle.SelectedIndex != -1)
{
lb_verticle.SetSelected(lb_verticle.SelectedIndex, false);
}
if (lb_edges.SelectedIndex != -1)
{
lb_edges.SetSelected(lb_edges.SelectedIndex, false);
}
if (e.Button != MouseButtons.Left)
{
wwClick = WhereWasClick.DrawingPanel;
return;
}
Verticle select = null;
foreach (var verticle in listOfVerticles)
{
int dx = e.X - verticle.point.X, dy = e.Y - verticle.point.Y;
if (!(Math.Sqrt(dx * dx + dy * dy) <= verticleRadius))
{
continue;
}
select = verticle;
break;
}
if (Equals(_selectedVerticle, select) || select == null)
{
if (_selectedVerticle != null)
{
_selectedVerticle.isSelected = false;
_selectedVerticle = null;
Drawing_panel.Invalidate();
}
return;
}
if (_selectedVerticle == null)
{
_selectedVerticle = select;
if (_selectedVerticle != null)
{
_selectedVerticle.isSelected = true;
}
Drawing_panel.Invalidate();
}
else
{
if (listOfEdges.Any(ed => Equals(ed.A, select) && Equals(ed.B, _selectedVerticle) ||
Equals(ed.A, _selectedVerticle) && Equals(ed.B, select)))
{
return;
}
var aef = new AddEdgeForm
{
Verticles = listOfVerticles,
Edges = listOfEdges,
SetDefaultVerticles = true,
Va = _selectedVerticle,
Vb = select
};
aef.ShowDialog();
if (aef.DialogResult != DialogResult.OK)
{
if (_selectedVerticle != null)
{
_selectedVerticle.isSelected = false;
}
_selectedVerticle.isSelected = false;
_selectedVerticle = null;
Drawing_panel.Invalidate();
return;
}
listOfEdges.Add(aef.Return);
listOfVerticles.Find(x => x.Equals(aef.Return.A)).connections++;
listOfVerticles.Find(x => x.Equals(aef.Return.B)).connections++;
RandomizeWeightsPositions(listOfEdges);
RenewLists();
if (_selectedVerticle != null)
{
_selectedVerticle.isSelected = false;
}
Drawing_panel.Refresh();
_selectedVerticle = null;
}
}