Re: gdk_draw_polygon +stipple fill has problem

[Tor Lillqvist <tml iki fi>]

The problem was caused by a silly bug in gdk/win32... The code that
calculates the bounding box in gdk_win32_draw_lines() was like this:

  for (i = 0; i < npoints; i++)
    {
      bounds.x = MIN (bounds.x, points[i].x);
      bounds.y = MIN (bounds.y, points[i].y);
      bounds.width = MAX (bounds.width, points[i].x - bounds.x);
      bounds.height = MAX (bounds.height, points[i].y - bounds.y);
    }

The width and height calculations are wrong. Obvioously, one cannot
calculate them before knowing what the actual minimum x and y will
be. I.e. two separate loops are needed:

  for (i = 0; i < npoints; i++)
    {
      bounds.x = MIN (bounds.x, points[i].x);
      bounds.y = MIN (bounds.y, points[i].y);
    }

  for (i = 0; i < npoints; i++)
    {
      bounds.width = MAX (bounds.width, points[i].x - bounds.x);
      bounds.height = MAX (bounds.height, points[i].y - bounds.y);
    }

Fixed in CVS.

--tml