gfio: encapsulate x- and y-offsets into graph library

[fio.git] / graph.c

diff --git a/graph.c b/graph.c
index de65055b99c1ffbb0dc00c88b805629c9bfd5bc9..111a7203b4a44ab5975cc43c730e8c808c13f429 100644 (file)
--- a/graph.c
+++ b/graph.c
@@ -55,6 +55,7 @@ struct graph {
        char *xtitle;
        char *ytitle;
        unsigned int xdim, ydim;
+       double xoffset, yoffset;
        struct graph_label *labels;
        struct graph_label *tail;
        int per_label_limit;
@@ -69,6 +70,12 @@ void graph_set_size(struct graph *g, unsigned int xdim, unsigned int ydim)
        g->ydim = ydim;
 }
 
+void graph_set_position(struct graph *g, double xoffset, double yoffset)
+{
+       g->xoffset = xoffset;
+       g->yoffset = yoffset;
+}
+
 struct graph *graph_new(unsigned int xdim, unsigned int ydim, const char *font)
 {
        struct graph *g;
@@ -397,6 +404,7 @@ void bar_graph_draw(struct graph *bg, cairo_t *cr)
        struct graph_label *lb;
 
        cairo_save(cr);
+       cairo_translate(cr, bg->xoffset, bg->yoffset);
        graph_draw_common(bg, cr, &x1, &y1, &x2, &y2);
 
        nlabels = count_labels(bg->labels);
@@ -473,6 +481,7 @@ void line_graph_draw(struct graph *g, cairo_t *cr)
        int good_data = 1, first = 1;
 
        cairo_save(cr);
+       cairo_translate(cr, g->xoffset, g->yoffset);
        graph_draw_common(g, cr, &x1, &y1, &x2, &y2);
 
        minx = find_xy_value(g, getx, mindouble);