-also draw a line if we only have one data point

1 files changed, 15 insertions, 0 deletions

diff --git a/src/statistics/gtk_statistics.c b/src/statistics/gtk_statistics.c
index bc7797f4..4b75b1ef 100644
--- a/src/statistics/gtk_statistics.c
+++ b/src/statistics/gtk_statistics.c
@@ -472,7 +472,22 @@ gtk_statistics_draw (GtkWidget *widget,
     h += te.height / 2 + 1.0;
     cairo_show_text (cr, vh->label);
     if (xmax == xmin) 
+    {
+      hv = &vh->history[vh->last_history_offset % MAX_HISTORY];
+      ry = hv->y / (double) ymax;
+      ry = BORDER + tex_max.height / 2.0 + (1.0 - ry) * (height - BORDER * 2.0 - tey_max.height - tex_max.height);
+      /* if y-values are small, offset y-values a bit to allow overlapping curves to still show up */
+      if (ymax < height / (priv->num_values * 4))
+        ry += priv->num_values * 2 - (4 * i);
+      cairo_move_to (cr, 
+                     width - BORDER - tex_max.width / 2.0, 
+                     ry);      
+      cairo_line_to (cr, 
+                     rx = tey_max.width + BORDER * 2.0,
+                     ry);
+      cairo_stroke (cr);
       continue;
+    }
 
     for (j=0;j<vh->history_size;j++)
     {