public void CreatePoint(int width, int heigth)
{
if (_lstDinh == null)
{
_lstDinh = new List <Dinh>();
}
int nameUnicode = 65;
int bacCuaDinh, banBacVao = 0, banBacRa = 0;
Dinh item;
Random rand = new Random();
Point pRand = new Point();
for (int i = 0; i < _soDinh; ++i)
{
pRand.X = rand.Next(width - 30);
pRand.Y = rand.Next(heigth - 30);
if (_coHuong)
{
banBacVao = 0;
banBacRa = 0;
for (int j = 0; j < _soDinh; ++j)
{
if (_maTran[i, j] != 0)
{
banBacRa++;
}
if (_maTran[j, i] != 0)
{
banBacVao++;
}
}
bacCuaDinh = banBacVao + banBacRa;
_tongBac += bacCuaDinh;
}
else
{
bacCuaDinh = 0;
for (int j = 0; j < _soDinh; ++j)
{
if (_maTran[i, j] != 0)
{
bacCuaDinh++;
}
}
_tongBac += bacCuaDinh;
}
item = new Dinh(((char)(nameUnicode + i)).ToString(), bacCuaDinh, banBacVao, banBacRa, pRand);
lstDinh.Add(item);
}
}
private void pnlGraph_MouseDown(object sender, MouseEventArgs e)
{
mouseDownLocation = e.Location;
isMouseDown = true;
if (tool == Tool.DiChuyen)
{
for (int i = 0; i < _doThi.soDinh; ++i)
{
int x = _doThi.lstDinh[i].pos.X;
int y = _doThi.lstDinh[i].pos.Y;
if (mouseDownLocation.X > x && mouseDownLocation.X < x + 30 &&
mouseDownLocation.Y > y && mouseDownLocation.Y < y + 30)
{
curSelectedNode = i;
break;
}
}
}
if (tool == Tool.VeNode && mode == Mode.VeTrucTiep)
{
if (curNodeAmount == 0)
{
_doThi.lstDinh = new List <Dinh>();
}
Dinh dinh = new Dinh(((char)(nameUnicode + curNodeAmount)).ToString(), 0, 0, 0, e.Location);
dinh.DrawNode(grs, sb);
dinh.AddNodeName(grs);
curNodeAmount++;
_doThi.lstDinh.Add(dinh);
if (_doThi.MaTranBangKhong())
{
_doThi.maTran = new int[curNodeAmount, curNodeAmount];
for (int i = 0; i < curNodeAmount; ++i)
{
for (int j = 0; j < curNodeAmount; ++j)
{
_doThi.maTran[i, j] = 0;
}
}
}
else
{
int[,] temMatrix = new int[curNodeAmount - 1, curNodeAmount - 1];
for (int i = 0; i < curNodeAmount - 1; ++i)
{
for (int j = 0; j < curNodeAmount - 1; ++j)
{
temMatrix[i, j] = _doThi.maTran[i, j];
}
}
_doThi.maTran = new int[curNodeAmount, curNodeAmount];
for (int i = 0; i < curNodeAmount - 1; ++i)
{
for (int j = 0; j < curNodeAmount - 1; ++j)
{
_doThi.maTran[i, j] = temMatrix[i, j];
}
}
}
_doThi.soDinh = curNodeAmount;
}
if (tool == Tool.VeCanh)
{
for (int i = 0; i < curNodeAmount; ++i)
{
int x = _doThi.lstDinh[i].pos.X;
int y = _doThi.lstDinh[i].pos.Y;
if (mouseDownLocation.X > x && mouseDownLocation.X < x + 30 &&
mouseDownLocation.Y > y && mouseDownLocation.Y < y + 30)
{
nodeDau = i;
break;
}
}
}
}