# File gtk/sample/gtk-demo/cairo-long-lines.rb, line 19 def draw(cr) cr.move_to(0.1, -50) cr.line_to(0.1, 50) cr.set_source_rgba(1, 0, 0) cr.stroke cr.move_to(0.2, -60) cr.line_to(0.2, 60) cr.set_source_rgba(1, 1, 0) cr.stroke cr.move_to(0.3, -70) cr.line_to(0.3, 70) cr.set_source_rgba(0, 1, 0) cr.stroke cr.move_to(0.4, -80) cr.line_to(0.4, 80) cr.set_source_rgba(0, 0, 1) cr.stroke end