gfio: get rid of invisible data

[fio.git] / graph.c

diff --git a/graph.c b/graph.c
index 663fe38035b033b74e4455e118af159e4f6c5f15..d3fcb8dbbcdd02d11373508878e3eaf341c98500 100644 (file)
--- a/graph.c
+++ b/graph.c
@@ -402,7 +402,7 @@ void line_graph_draw(struct graph *g, cairo_t *cr)
        double tx, ty;
        struct graph_label *i;
        struct graph_value *j;
-       int first = 1;
+       int good_data = 1, first = 1;
 
        cairo_save(cr);
        graph_draw_common(g, cr, &x1, &y1, &x2, &y2);
@@ -413,15 +413,19 @@ void line_graph_draw(struct graph *g, cairo_t *cr)
        maxy = find_xy_value(g, gety, maxdouble);
 
        if (fabs(maxx - minx) < 1e-20 || fabs(maxy - miny) < 1e-20) {
-               draw_centered_text(g, cr,
-                       x1 + (x2 - x1) / 2.0,
-                       y1 + (y2 - y1) / 2.0, 20.0, "No good Data");
-               return;
+               good_data = 0;
+               minx = 0.0;
+               miny = 0.0;
+               maxx = 10.0;
+               maxy = 100.0;
        }
 
        graph_draw_x_ticks(g, cr, x1, y1, x2, y2, minx, maxx, 10);
        graph_draw_y_ticks(g, cr, x1, y1, x2, y2, miny, maxy, 10);
 
+       if (!good_data)
+               goto skip_data;
+
        cairo_set_line_width(cr, 1.5);
        for (i = g->labels; i; i = i->next) {
                first = 1;
@@ -440,7 +444,10 @@ void line_graph_draw(struct graph *g, cairo_t *cr)
                }
                cairo_stroke(cr);
        }
+
+skip_data:
        cairo_restore(cr);
+
 }
 
 static void gfree(void *f)