libcairodoc.py 文件源码

def draw(self, cairo_context, pango_layout, width, dpi_x, dpi_y):
        """Draw itself onto a cairo surface.

        @param cairo_context: context to draw on
        @param type: cairo.Context class
        @param pango_layout: pango layout to write on
        @param type: Pango.Layout class
        @param width: width of available space for this element
        @param type: device points
        @param dpi_x: the horizontal resolution
        @param type: dots per inch
        @param dpi_y: the vertical resolution
        @param type: dots per inch

        @return: height of the element
        @rtype: device points

        """
        raise NotImplementedError