public static Cursor CursorOnRangeHandler(Rectangle[] hands, Point p)
{
RangeHandlerPos pos = InRangeHandler(hands, p);
switch (pos)
{
default:
return(Cursors.Default);
case RangeHandlerPos.Left:
case RangeHandlerPos.Right:
return(Cursors.SizeWE);
case RangeHandlerPos.Top:
case RangeHandlerPos.Bottom:
return(Cursors.SizeNS);
case RangeHandlerPos.LeftTop:
case RangeHandlerPos.RightBottom:
return(Cursors.SizeNWSE);
case RangeHandlerPos.RightTop:
case RangeHandlerPos.LeftBottom:
return(Cursors.SizeNESW);
}
}
public static void UpdateRangeHandlers(Rectangle rect, Rectangle[] hands, RangeHandlerPos pos)
{
int hx = rect.Left + rect.Width / 2 - hs - 1;
int hy = rect.Top + rect.Height / 2 - hs - 1;
if (pos == RangeHandlerPos.None || pos == RangeHandlerPos.LeftTop)
{
hands[(int)RangeHandlerPos.LeftTop] = new Rectangle(rect.X - hs - 1, rect.Y - hs - 1, size, size);
}
if (pos == RangeHandlerPos.None || pos == RangeHandlerPos.LeftBottom)
{
hands[(int)RangeHandlerPos.LeftBottom] = new Rectangle(rect.X - hs - 1, rect.Bottom - hs + 1, size, size);
}
if (pos == RangeHandlerPos.None || pos == RangeHandlerPos.RightTop)
{
hands[(int)RangeHandlerPos.RightTop] = new Rectangle(rect.Right - hs + 1, rect.Y - hs - 1, size, size);
}
if (pos == RangeHandlerPos.None || pos == RangeHandlerPos.RightBottom)
{
hands[(int)RangeHandlerPos.RightBottom] = new Rectangle(rect.Right - hs + 1, rect.Bottom - hs + 1, size, size);
}
if (pos == RangeHandlerPos.None || pos == RangeHandlerPos.Left)
{
hands[(int)RangeHandlerPos.Left] = new Rectangle(rect.X - hs - 1, hy, size, size);
}
if (pos == RangeHandlerPos.None || pos == RangeHandlerPos.Right)
{
hands[(int)RangeHandlerPos.Right] = new Rectangle(rect.Right - hs + 1, hy, size, size);
}
if (pos == RangeHandlerPos.None || pos == RangeHandlerPos.Top)
{
hands[(int)RangeHandlerPos.Top] = new Rectangle(hx, rect.Top - hs - 1, size, size);
}
if (pos == RangeHandlerPos.None || pos == RangeHandlerPos.Bottom)
{
hands[(int)RangeHandlerPos.Bottom] = new Rectangle(hx, rect.Bottom - hs + 1, size, size);
}
}