xdot.py 文件源码

def draw(self, cr, highlight_items=None):
        if highlight_items is None:
            highlight_items = ()
        cr.set_source_rgba(0.0, 0.0, 0.0, 1.0)

        cr.set_line_cap(cairo.LINE_CAP_BUTT)
        cr.set_line_join(cairo.LINE_JOIN_MITER)

        for shape in self.shapes:
            shape.draw(cr)
        for edge in self.edges:
            edge.draw(cr, highlight=(edge in highlight_items))
        for node in self.nodes:
            node.draw(cr, highlight=(node in highlight_items))