//кнопка - удалить элемент
private void deleteButton_Click(object sender, EventArgs e)
{
mouseNow = buttonOption.deleteButton;
Timer.Stop();
G.drawALLGraph(V, E);
drawSheet.Image = G.GetBitmap();
}
private void showAlgorithm_Click(object sender, EventArgs e)
{
mouseNow = buttonOption.timer;
foreach (var edge in E)
{
edge.Capacity = edge.maxCapacity;
}
Timer.Start();
}
public MainForm()
{
InitializeComponent();
G = new DrawGraph(drawSheet.Width, drawSheet.Height);
V = new List <Node>();
E = new List <Edge>();
lineColor.EndCap = LineCap.ArrowAnchor;
mouseNow = buttonOption.none;
defaultGraph();
G.drawALLGraph(V, E);
drawSheet.Image = G.GetBitmap();
}
private void drawSheet_MouseClick(object sender, MouseEventArgs e)
{
bool somethingDelete = false;
switch (mouseNow)
{
case buttonOption.none: //не нажата никакая кнопка
matrixBox.Clear();
G.drawALLGraph(V, E);
drawSheet.Image = G.GetBitmap();
break;
case buttonOption.newVertex: //нажата кнопка "рисовать вершину"
V.Add(new Node(e.Location));
G.drawVertex(e.Location, V.Count.ToString());
drawSheet.Image = G.GetBitmap();
mouseNow = buttonOption.none;
break;
case buttonOption.newEdge: //нажата кнопка "рисовать ребро"
if (e.Button == MouseButtons.Left)
{
for (int i = 0; i < V.Count; i++)
{
if (Math.Pow((V[i].position.X - e.X), 2) + Math.Pow((V[i].position.Y - e.Y), 2) <= G.R * G.R)
{
if (selectNode == null)
{
selectNode = V[i];
G.drawSelectedVertex(V[i].position);
drawSheet.Image = G.GetBitmap();
break;
}
if (selectNode == V[i])
{
drawSheet.Image = G.GetBitmap();
G.drawALLGraph(V, E);
selectNode = null;
mouseNow = buttonOption.none;
return;
}
if (selectNode != V[i])
{
G.drawSelectedVertex(V[i].position);
inputEdgeThroughput throughput = new inputEdgeThroughput();
throughput.ShowDialog();
float c = throughput.val();
throughput.Close();
if (c != 0)
{
E.Add(new Edge(selectNode, V[i], c));
G.drawEdge(selectNode, V[i], E.Last());
}
drawSheet.Image = G.GetBitmap();
G.drawALLGraph(V, E);
selectNode = null;
mouseNow = buttonOption.none;
break;
}
}
}
}
if (e.Button == MouseButtons.Right)
{
if (selectNode != null)
{
G.drawALLGraph(V, E);
drawSheet.Image = G.GetBitmap();
selectNode = null;
}
}
break;
case buttonOption.deleteButton: //нажата кнопка "удалить элемент"
bool flag = false; //удалили ли что-нибудь по ЭТОМУ клику
//если удалена вершина
for (int i = 0; i < V.Count; i++)
{
if (Math.Pow((V[i].position.X - e.X), 2) + Math.Pow((V[i].position.Y - e.Y), 2) <= G.R * G.R)
{
for (int j = 0; j < E.Count; j++)
{
if ((E[j].NodeFrom == V[i]) || (E[j].NodeTo == V[i]))
{
E.RemoveAt(j);
j--;
}
}
V.RemoveAt(i);
flag = true;
break;
}
}
//если удалено ребро
if (!flag)
{
for (int i = 0; i < E.Count; i++)
{
if (((e.X - E[i].NodeFrom.position.X) * (E[i].NodeTo.position.Y - E[i].NodeFrom.position.Y) / (E[i].NodeTo.position.X - E[i].NodeFrom.position.X) + E[i].NodeFrom.position.Y) <= (e.Y + 6) &&
((e.X - E[i].NodeFrom.position.X) * (E[i].NodeTo.position.Y - E[i].NodeFrom.position.Y) / (E[i].NodeTo.position.X - E[i].NodeFrom.position.X) + E[i].NodeFrom.position.Y) >= (e.Y - 6))
{
if ((E[i].NodeFrom.position.X <= E[i].NodeTo.position.X && E[i].NodeFrom.position.X <= e.X && e.X <= E[i].NodeTo.position.X) ||
(E[i].NodeFrom.position.X >= E[i].NodeTo.position.X && E[i].NodeFrom.position.X >= e.X && e.X >= E[i].NodeTo.position.X))
{
E.RemoveAt(i);
flag = true;
break;
}
}
}
}
//если что-то было удалено, то обновляем граф на экране
if (flag)
{
somethingDelete = true;
G.drawALLGraph(V, E);
drawSheet.Image = G.GetBitmap();
mouseNow = buttonOption.none;
}
break;
default:
break;
}
Timer.Stop();
G.drawALLGraph(V, E);
drawSheet.Image = G.GetBitmap();
if (somethingDelete)
{
showAlgorithm.Enabled = false;
}
}
