dashboard: draw fuel value on bar

firmware/esp32-s3-dashboard/dashboard_config.h

@@ -1,6 +1,6 @@
 #pragma once
 
-static const char *DASHBOARD_VERSION = "0.1.49-vehicle-meter-fit";
+static const char *DASHBOARD_VERSION = "0.1.50-fuel-bar-value-draw";
 
 // Update these if your Cargo ESP AP credentials are different.
 static const char *CARGO_WIFI_SSID = "OverlandController";

firmware/esp32-s3-dashboard/esp32-s3-dashboard.ino

@@ -608,6 +608,52 @@ static void update_system_status_label()
 
 
 
+
+static void fuel_bar_draw_value_cb(lv_event_t *e)
+{
+    lv_obj_draw_part_dsc_t *dsc = lv_event_get_draw_part_dsc(e);
+    if (dsc == nullptr || dsc->part != LV_PART_INDICATOR) {
+        return;
+    }
+
+    lv_obj_t *bar = lv_event_get_target(e);
+
+    lv_draw_label_dsc_t label_dsc;
+    lv_draw_label_dsc_init(&label_dsc);
+    label_dsc.font = &lv_font_montserrat_26;
+
+    char buf[10];
+    lv_snprintf(buf, sizeof(buf), "%d%%", (int)lv_bar_get_value(bar));
+
+    lv_point_t txt_size;
+    lv_txt_get_size(
+        &txt_size,
+        buf,
+        label_dsc.font,
+        label_dsc.letter_space,
+        label_dsc.line_space,
+        LV_COORD_MAX,
+        label_dsc.flag
+    );
+
+    lv_area_t txt_area;
+
+    if (lv_area_get_width(dsc->draw_area) > txt_size.x + 20) {
+        txt_area.x2 = dsc->draw_area->x2 - 6;
+        txt_area.x1 = txt_area.x2 - txt_size.x + 1;
+        label_dsc.color = lv_color_hex(0xFFFFFF);
+    } else {
+        txt_area.x1 = dsc->draw_area->x2 + 8;
+        txt_area.x2 = txt_area.x1 + txt_size.x - 1;
+        label_dsc.color = lv_color_hex(0xFFFFFF);
+    }
+
+    txt_area.y1 = dsc->draw_area->y1 + (lv_area_get_height(dsc->draw_area) - txt_size.y) / 2;
+    txt_area.y2 = txt_area.y1 + txt_size.y - 1;
+
+    lv_draw_label(dsc->draw_ctx, &label_dsc, &txt_area, buf, NULL);
+}
+
 static void update_temp_tile_alert_style(int index, bool alert)
 {
     if (index < 0 || index >= 2 || temp_tile_objs[index] == nullptr) {
@@ -1178,11 +1224,12 @@ static void create_overland_overview_screen()
     lv_label_set_text(fuel_title, "Fuel");
     lv_obj_set_style_text_color(fuel_title, lv_color_hex(0xDDE3EA), 0);
     lv_obj_set_style_text_font(fuel_title, &lv_font_montserrat_26, 0);
-    lv_obj_align(fuel_title, LV_ALIGN_BOTTOM_LEFT, 14, -18);
+    lv_obj_align(fuel_title, LV_ALIGN_BOTTOM_LEFT, 10, -18);
 
     vehicle_fuel_bar = lv_bar_create(vehicle_card);
-    lv_obj_set_size(vehicle_fuel_bar, 154, 20);
+    lv_obj_add_event_cb(vehicle_fuel_bar, fuel_bar_draw_value_cb, LV_EVENT_DRAW_PART_END, NULL);
-    lv_obj_align(vehicle_fuel_bar, LV_ALIGN_BOTTOM_LEFT, 76, -21);
+    lv_obj_set_size(vehicle_fuel_bar, 190, 22);
+    lv_obj_align(vehicle_fuel_bar, LV_ALIGN_BOTTOM_LEFT, 64, -21);
     lv_bar_set_range(vehicle_fuel_bar, 0, 100);
     lv_bar_set_value(vehicle_fuel_bar, 72, LV_ANIM_OFF);
     lv_obj_set_style_radius(vehicle_fuel_bar, 3, 0);
@@ -1200,14 +1247,12 @@ static void create_overland_overview_screen()
         lv_obj_set_style_bg_color(tick, lv_color_hex(0x7D8996), 0);
         lv_obj_set_style_border_width(tick, 0, 0);
         lv_obj_set_style_radius(tick, 0, 0);
-        lv_obj_align(tick, LV_ALIGN_BOTTOM_LEFT, 76 + (i * 38), -18);
+        lv_obj_align(tick, LV_ALIGN_BOTTOM_LEFT, 64 + (i * 47), -18);
     }
 
     vehicle_fuel_value_label = lv_label_create(vehicle_card);
-    lv_label_set_text(vehicle_fuel_value_label, "72%");
+    lv_label_set_text(vehicle_fuel_value_label, "");
-    lv_obj_set_style_text_color(vehicle_fuel_value_label, lv_color_hex(0xFFFFFF), 0);
+    lv_obj_add_flag(vehicle_fuel_value_label, LV_OBJ_FLAG_HIDDEN);
-    lv_obj_set_style_text_font(vehicle_fuel_value_label, &lv_font_montserrat_30, 0);
-    lv_obj_align(vehicle_fuel_value_label, LV_ALIGN_BOTTOM_RIGHT, -12, -15);
 
     for (int i = 0; i < 6; i++) {
         relay_buttons[i] = lv_btn_create(relay_card);