/// <summary>
/// Draws all arrows of this pair
/// </summary>
/// <param name="g">The graphics to draw</param>
public void SetArrows(Graphics g)
{
object[] arrs = arrows.ToArray();
int n = arrs.Length;
int xs = 0;
int ys = 0;
int xt = 0;
int yt = 0;
Control p = null;
if (objects[0] is Panel | objects[0] is UserControl)
{
p = objects[0] as Control;
}
else
{
p = ContainerPerformer.GetPanel(objects[0]) as Control;
}
xs = p.Left + p.Width / 2;
ys = p.Top + p.Height / 2;
if (objects[1] is Panel | objects[1] is UserControl)
{
p = objects[1] as Control;
}
else
{
p = ContainerPerformer.GetPanel(objects[1]) as Control;
}
if (p == null)
{
return;
}
xt = p.Left + p.Width / 2;
yt = p.Top + p.Height / 2;
int xc = (xt + xs) / 2;
int yc = (yt + ys) / 2;
int dx = (xt - xs) / 2;
int dy = (yt - ys) / 2;
double d = Math.Sqrt((double)(dx * dx + dy * dy));
double px = -DISTANCE * ((double)dy) / d;
double py = DISTANCE * ((double)dx) / d;
int posX = xc - (int)((n - 1) * px / 2);
int posY = yc - (int)((n - 1) * py / 2);
for (int i = 0; i < n; i++)
{
IArrowLabelUI lab = arrs[i] as IArrowLabelUI;
Control control = lab.Control as Control;
lab.X = posX + i * (int)px - control.Width / 2;
lab.Y = posY + i * (int)py - control.Height / 2;
if (g == null)
{
continue;
}
lab.Draw(g);
}
}