/* graph_new() Returns a new graph structure of the given dimensions and font */
void graph_set_size(struct graph *g, unsigned int xdim, unsigned int ydim);
/* graph_set_size() Changes the size of a graph to the given dimensions. */
+void graph_set_position(struct graph *g, double xoffset, double yoffset);
+/* graph_set_position() sets the x- and y-offset to translate the graph */
void bar_graph_draw(struct graph *g, cairo_t *cr);
/* bar_graph_draw() draws the given graph as a bar graph */
void line_graph_draw(struct graph *g, cairo_t *cr);