private void pictureBox1_MouseClick(object sender, MouseEventArgs e)
{
Refresh();
var need = true;
var click = new Point(e.X - _offset, e.Y - _offset);
if (e.Button == MouseButtons.Left)
{
if (!_graph.GetVerts().Any())
{
var v = _graph.AddVert(new Vert(click));
dataGridView1.Rows.Add(dataGridView1.RowCount, (v.Position.X - pictureBox1.Width / 2) / 2, (-v.Position.Y + pictureBox1.Height / 2) / 2);
_edgeFrom = v;
_edging = true;
}
else
{
Vert connectTo = null;
foreach (var v in _graph.GetVerts())
{
if (Helper.InCircle(v.Position, click, Vert.R))
{
need = false;
connectTo = v;
}
}
if (need)
{
connectTo = _graph.AddVert(new Vert(click));
dataGridView1.Rows.Add(dataGridView1.RowCount, (connectTo.Position.X - pictureBox1.Width / 2) / 2, (-connectTo.Position.Y + pictureBox1.Height / 2) / 2);
if (!_edging)
{
_edgeFrom = connectTo;
_edging = true;
}
else
{
if (!_edgeFrom.LinkedVers.Contains(connectTo))
{
_edgeFrom.AddAsLinked(connectTo);
}
if (!connectTo.LinkedVers.Contains(_edgeFrom))
{
connectTo.AddAsLinked(_edgeFrom);
}
_edging = false;
}
}
else
{
if (_edging)
{
if (!_edgeFrom.LinkedVers.Contains(connectTo))
{
_edgeFrom.AddAsLinked(connectTo);
}
if (!connectTo.LinkedVers.Contains(_edgeFrom))
{
connectTo.AddAsLinked(_edgeFrom);
}
_edging = false;
}
else
{
_edgeFrom = connectTo;
_edging = true;
}
}
}
}
if (e.Button == MouseButtons.Right)
{
foreach (var v in _graph.GetVerts())
{
if (Helper.InCircle(v.Position, click, Vert.R))
{
dataGridView1.Rows.RemoveAt(_graph.GetVerts().IndexOf(v));
_graph.RemoveVert(v);
foreach (var ver in _graph.GetVerts().Where(ver => ver.LinkedVers.Contains(v)))
{
ver.LinkedVers.Remove(v);
}
for (var i = 0; i < dataGridView1.RowCount - 1; i++)
{
dataGridView1.Rows[i].Cells[0].Value = i + 1;
}
break;
}
}
}
Refresh();
}
/// <summary>
/// Удалить вершину
/// </summary>
/// <param name="vert">Удаляемая вершина</param>
public void RemoveVert(Vert vert)
{
_verts.Remove(vert);
}
/// <summary>
/// Добавить связанную вершину
/// </summary>
/// <param name="vert">Вершина</param>
public void AddAsLinked(Vert vert)
{
LinkedVers.Add(vert);
}
///<summary>
/// Добавляет вершину в граф
/// </summary>
///<returns>Возвращает добавленную вершину</returns>
public Vert AddVert(Vert vert)
{
_verts.Add(vert);
return(vert);
}