avoid partial drawing of the smooth curve outside the graph area

diff --git a/src/graph.c b/src/graph.c
index b68c346..790e26a 100644 (file)
--- a/src/graph.c
+++ b/src/graph.c
@@ -68,19 +68,28 @@ static time_t get_graph_end_time_s(struct psensor **sensors)
        time_t ret, t;
        struct psensor *s;
        struct measure *measures;
-       int i;
+       int i, n;
 
        ret = 0;
        while (*sensors) {
                s = *sensors;
                measures = s->measures;
 
+               if (is_smooth_curves_enabled)
+                       n = 2;
+               else
+                       n = 0;
+
                for (i = s->values_max_length - 1; i >= 0; i--) {
                        if (measures[i].value != UNKNOWN_DBL_VALUE) {
-                               t = measures[i].time.tv_sec;
+                               if (!n) {
+                                       t = measures[i].time.tv_sec;
 
-                               if (t > ret)
-                                       ret = t;
+                                       if (t > ret)
+                                               ret = t;
+                               } else {
+                                       n--;
+                               }
                        }
                        i--;
                }
@@ -133,6 +142,22 @@ static void draw_left_region(cairo_t *cr, struct graph_info *info)
        cairo_fill(cr);
 }
 
+static void draw_right_region(cairo_t *cr, struct graph_info *info)
+{
+       cairo_set_source_rgb(cr,
+                            info->theme_bg_color.red,
+                            info->theme_bg_color.green,
+                            info->theme_bg_color.blue);
+
+
+       cairo_rectangle(cr,
+                       info->g_xoff + info->g_width,
+                       0,
+                       info->g_xoff + info->g_width + GRAPH_H_PADDING,
+                       info->height);
+       cairo_fill(cr);
+}
+
 static void
 draw_graph_background(cairo_t *cr,
                      struct config *config,
@@ -557,6 +582,7 @@ graph_update(struct psensor **sensors,
        }
 
        draw_left_region(cr, &info);
+       draw_right_region(cr, &info);
 
        /* draw min and max temp */
        cairo_set_source_rgb(cr,