private void RowColumnNumTextChanged(object sender, EventArgs e)
{
if (int.TryParse(NumRowsEntry.Text, out row) && int.TryParse(NumColumnsEntry.Text, out col) && row > 0 && col > 0)
{
this.Grid.Controls.Clear();
buttons.Clear();
start = new ManagedPoint(-1, -1);
end = new ManagedPoint(-1, -1);
graph = ManagedGridHelper.CreateGrid(col, row);
int ID = 0;
for (int i = 0; i < row; ++i)
{
for (int j = 0; j < col; ++j)
{
Button button = new Button();
buttons.Add(button);
this.Grid.Controls.Add(button);
button.Dock = System.Windows.Forms.DockStyle.Top;
button.Location = new System.Drawing.Point(0, 0);
button.Name = ID.ToString();
++ID;
button.UseVisualStyleBackColor = true;
button.MouseDown += Button_MouseClick;
}
}
horizontalTolerance = buttons[0].Margin.Horizontal * row;
verticalTolerance = buttons[0].Margin.Vertical * col;
UpdateButtons();
}
else
{
NumRowsEntry.Text = row.ToString();
NumColumnsEntry.Text = col.ToString();
}
}
private void Button_MouseClick(object sender, MouseEventArgs e)
{
switch (e.Button)
{
case MouseButtons.Left:
{
Button b = sender as Button;
int x, y;
GetButtonGraphCoords(b, out x, out y);
if (graph[x, y].Type != ManagedNodeType.Start)
{
if (start != invalidPoint)
{
graph[start.X, start.Y].Type = ManagedNodeType.Normal;
}
graph[x, y].Type = ManagedNodeType.Start;
start = new ManagedPoint(x, y);
}
else
{
graph[x, y].Type = ManagedNodeType.Normal;
start = invalidPoint;
}
}
break;
case MouseButtons.Right:
{
Button b = sender as Button;
int x, y;
GetButtonGraphCoords(b, out x, out y);
if (graph[x, y].Type != ManagedNodeType.End)
{
if (end != invalidPoint)
{
graph[end.X, end.Y].Type = ManagedNodeType.Normal;
}
graph[x, y].Type = ManagedNodeType.End;
end = new ManagedPoint(x, y);
}
else
{
graph[x, y].Type = ManagedNodeType.Normal;
end = invalidPoint;
}
}
break;
case MouseButtons.Middle:
{
Button b = sender as Button;
int x, y;
GetButtonGraphCoords(b, out x, out y);
ManagedPoint Point = new ManagedPoint(x, y);
if (graph[x, y].Type == ManagedNodeType.Wall)
{
graph[x, y].Type = ManagedNodeType.Normal;
}
else
{
graph[Point].Type = ManagedNodeType.Wall;
if (start == Point)
{
start = invalidPoint;
}
else if (end == Point)
{
end = invalidPoint;
}
}
}
break;
}
UpdateTextures();
}
