private void FullItem_Click(object sender, EventArgs e)
{
Point ul = Point.Empty;
Point ur = new Point(_tile.Width - 1, 0);
Point lr = new Point(_tile.Width - 1, _tile.Height - 1);
Point ll = new Point(0, _tile.Height - 1);
_tile.Obstructions.Clear();
_tile.Obstructions.Add(new Line(ul, ur));
_tile.Obstructions.Add(new Line(ur, lr));
_tile.Obstructions.Add(new Line(ll, lr));
_tile.Obstructions.Add(new Line(ul, ll));
TileImage.Refresh();
}
private void TileImage_MouseMove(object sender, MouseEventArgs e)
{
if (_paint)
{
last_x = cur_x;
last_y = cur_y;
cur_x = e.X / _zoom;
cur_y = e.Y / _zoom;
if (cur_x != last_x || cur_y != last_y)
{
_end_loc.X = e.X / _zoom;
_end_loc.Y = e.Y / _zoom;
TileImage.Refresh();
}
}
}
private void ClearItem_Click(object sender, EventArgs e)
{
_tile.Obstructions.Clear();
TileImage.Refresh();
}
private void TileImage_MouseUp(object sender, MouseEventArgs e)
{
_paint = false;
if (_tool == 0)
{
_tile.Obstructions.Add(new Line(_start_loc, _end_loc));
}
else if (_tool == 1)
{
Rectangle rect = Line.ToRectangle(new Line(_start_loc, _end_loc));
short x1 = (short)rect.X, y1 = (short)rect.Y;
short x2 = (short)(rect.X + rect.Width);
short y2 = (short)(rect.Y + rect.Height);
if (rect.Width == 0)
{
_tile.Obstructions.Add(new Line(x1, y1, x1, y2)); // horizontal
}
else if (rect.Height == 0)
{
_tile.Obstructions.Add(new Line(x1, y1, x2, y1)); // vertical
}
else
{
_tile.Obstructions.Add(new Line(x1, y1, x1, y2)); // top
_tile.Obstructions.Add(new Line(x1, y1, x2, y1)); // left
_tile.Obstructions.Add(new Line(x1, y2, x2, y2)); // bottom
_tile.Obstructions.Add(new Line(x2, y1, x2, y2)); // right
}
}
else if (_tool == 2)
{
if (_tile.Obstructions.Count == 0)
{
return;
}
int index = 0;
int cur = 0;
int dist = _tile.Width;
int c_x = e.X / _zoom;
int c_y = e.Y / _zoom;
foreach (Line l in _tile.Obstructions)
{
int m_x = l.X1 + (l.X2 - l.X1) / 2;
int m_y = l.Y1 + (l.Y2 - l.Y1) / 2;
int d_x = m_x - c_x;
int d_y = m_y - c_y;
int l_dist = (int)Math.Sqrt(d_x * d_x + d_y * d_y);
if (l_dist < dist)
{
dist = l_dist;
cur = index;
}
index++;
}
_tile.Obstructions.RemoveAt(cur);
}
if (Modified != null)
{
Modified(this, new EventArgs());
}
TileImage.Refresh();
}