- GtkWidget *chart_box = gtk_button_box_new(GTK_ORIENTATION_HORIZONTAL);
- gtk_container_add(GTK_CONTAINER(window), chart_box);
-
- GtkWidget *chart = bv_chart_new();
- gtk_container_add(GTK_CONTAINER(chart_box), chart);
+ GtkWidget *box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 1);
+ gtk_container_add(GTK_CONTAINER(window), box);
+
+ struct State *state = (struct State *)user_data;
+ state->voltage = BV_CHART(bv_chart_new());
+ bv_chart_add_point(state->voltage, 0.0, 0.0);
+ bv_chart_add_point(state->voltage, 1.0, 1.0);
+ bv_chart_add_point(state->voltage, 3.0, 2.0);
+ gboolean expand = TRUE;
+ gboolean fill = TRUE;
+ guint padding = 0;
+ gtk_box_pack_start(GTK_BOX(box), GTK_WIDGET(state->voltage), expand, fill,
+ padding);
+
+ state->current = BV_CHART(bv_chart_new());
+ bv_chart_add_point(state->current, 0.0, 1.0);
+ bv_chart_add_point(state->current, 1.0, 0.0);
+ gtk_box_pack_end(GTK_BOX(box), GTK_WIDGET(state->current), expand, fill,
+ padding);