Seperated chart from box; fixed kkr segfault.

box.c

@@ -73,7 +73,6 @@ draw_rectangle(double fx, double fy, double fwidth, double fheight)
 static void
 draw_chart(struct box *chart, double x, double y, double width, double height)
 {
-    char c = '@';
     long int actual_diff;
     double diff, price;
     enum ui_color color;
@@ -89,23 +88,11 @@ draw_chart(struct box *chart, double x, double y, double width, double height)
     actual_diff = 0;
 
     for (size_t i = 0; i < width; i++) {
-        diff = (double)rand() / RAND_MAX - 0.6;
-        actual_diff =  (size_t)(height + y - price)
-                       - (size_t)(height + y - (price + diff));
+        price = chart->chart->prices[i];
 
-        if (actual_diff > 0)  {
-            color = UI_GREEN;
-        } else if (actual_diff == 0) {
-            color = UI_NONE;
-        } else if (actual_diff < 0) {
-            color = UI_RED;
-        }
-
-        ui_color_on(color);
-        ui_char(x + i, height + y - price, c);
-        ui_color_off(color);
-
-        price += diff;
+        ui_color_on(UI_BLUE);
+        ui_char(x + i, height + y - price, '@');
+        ui_color_off(UI_BLUE);
     }
 }
 
@@ -163,16 +150,16 @@ draw_container(struct box *b, double x, double y, double width, double height)
 
 
 struct box *
-new_chart_box(void)
+new_chart_box(struct chart *chart)
 {
-    struct box *chart = malloc(sizeof(struct box));
+    struct box *box = malloc(sizeof(struct box));
 
-    chart->type = BOX_CHART;
-    chart->prices = emalloc(sizeof(double) * 100);
-    chart->fills = 1;
-    chart->color = UI_NONE;
+    box->type = BOX_CHART;
+    box->chart = chart;
+    box->fills = 1;
+    box->color = UI_NONE;
 
-    return chart;
+    return box;
 }