// смещение поддерева
// ======
public void Delta(HoTSNode p, int dx, int dy)
{
p.x -= dx; p.y -= dy;
if (p.node_Left != null)
Delta(p.node_Left, dx, dy);
if (p.node_Right != null)
Delta(p.node_Right, dx, dy);
}
// конструктор
public HoTSNode(HoTSNode Left, HoTSNode Right, int Data, int x, int y)
{
node_Left = Left;
node_Right = Right;
node_Data = Data;
this.x = x;
this.y = y;
visit = false;
}
// поиск по координатам
public HoTSNode FindNode(HoTSNode p, int x, int y)
{
HoTSNode result = null;
if (p == null)
return result;
if (((p.x - x) * (p.x - x) + (p.y - y) * (p.y - y)) < 100)
result = p;
else
{
result = FindNode(p.node_Left, x, y);
if (result == null)
result = FindNode(p.node_Right, x, y);
}
return result;
}
// конструктор
public HoTSTree(int VW, int VH)
{
tree_Top = null;
tree_Canvas = new Bitmap(VW, VH);
_Font = new Font("Courier New", 10, FontStyle.Bold);
}
void HoTSGetNum(HoTSNode p)
{
if (p != null)
{
if (p.node_Left != null && p.node_Left.node_Data == p.node_Data)
Result = true;
else
if (p.node_Right != null && p.node_Right.node_Data == p.node_Data)
Result = true;
else
{
HoTSGetNum(p.node_Left);
HoTSGetNum(p.node_Right);
}
}
}
// рисование дерева
void DrawNode(HoTSNode p)
{
int R = 17;
if (p.node_Left != null)
_Graph.DrawLine(_Ren, p.x, p.y, p.node_Left.x, p.node_Left.y);
if (p.node_Right != null)
_Graph.DrawLine(_Ren, p.x, p.y, p.node_Right.x, p.node_Right.y);
if (p.visit)
_Brush = (SolidBrush)Brushes.Yellow;
else
_Brush = (SolidBrush)Brushes.LightYellow;
_Graph.FillEllipse(_Brush, p.x - R, p.y - R, 2 * R, 2 * R);
_Graph.DrawEllipse(_Ren, p.x - R, p.y - R, 2 * R, 2 * R);
string s = Convert.ToString(p.node_Data);
SizeF size = _Graph.MeasureString(s, _Font);
_Graph.DrawString(s, _Font, Brushes.Black,
p.x - size.Width / 2,
p.y - size.Height / 2);
if (p.node_Left != null)
DrawNode(p.node_Left);
if (p.node_Right != null)
DrawNode(p.node_Right);
}
// вставка
public void HoTSInsert(ref HoTSNode t, int data, int x, int y)
{
if (t == null)
t = new HoTSNode(null, null, data, x, y);
else
if (data < Convert.ToInt32(t.node_Data))
HoTSInsert(ref t.node_Left, data, t.x - 50, t.y + 50);
else
HoTSInsert(ref t.node_Right, data, t.x + 50, t.y + 50);
}
public void HoTSDeSelect(HoTSNode Node)
{
if (Node != null)
{
HoTSDeSelect(Node.node_Left);
Node.visit = false;
HoTSDeSelect(Node.node_Right);
}
}