def _stroke(context, color=(0,0,0), thickness=None, dash_pattern=(), dash_offset=0):
if not thickness:
thickness = get_one_pixel(context)
context.set_dash(dash_pattern, dash_offset)
context.set_source_rgb(*color)
context.set_line_width(thickness)
context.stroke()
def draw_x(context, point, pixel_radius=4, *args, **kwargs):
with Saved(context) as c:
x, y = point
one_pixel = get_one_pixel(c)
offset = pixel_radius * one_pixel;
c.move_to(x - offset, y + offset) #upper left
c.line_to(x + offset, y - offset) #lower right
c.move_to(x + offset, y + offset) #upper right
c.line_to(x - offset, y - offset) #lower left
_stroke(c, *args, **kwargs)
