[lvgl] fix bg_image_src (#8005)

Co-authored-by: clydeps <U5yx99dok9>

esphome/components/lvgl/lvgl_esphome.h

@@ -59,6 +59,16 @@ inline void lv_img_set_src(lv_obj_t *obj, esphome::image::Image *image) {
 inline void lv_disp_set_bg_image(lv_disp_t *disp, esphome::image::Image *image) {
   lv_disp_set_bg_image(disp, image->get_lv_img_dsc());
 }
+
+inline void lv_obj_set_style_bg_img_src(lv_obj_t *obj, esphome::image::Image *image, lv_style_selector_t selector) {
+  lv_obj_set_style_bg_img_src(obj, image->get_lv_img_dsc(), selector);
+}
+#ifdef USE_LVGL_METER
+inline lv_meter_indicator_t *lv_meter_add_needle_img(lv_obj_t *obj, lv_meter_scale_t *scale, esphome::image::Image *src,
+                                                     lv_coord_t pivot_x, lv_coord_t pivot_y) {
+  return lv_meter_add_needle_img(obj, scale, src->get_lv_img_dsc(), pivot_x, pivot_y);
+}
+#endif  // USE_LVGL_METER
 #endif  // USE_LVGL_IMAGE
 #ifdef USE_LVGL_ANIMIMG
 inline void lv_animimg_set_src(lv_obj_t *img, std::vector<image::Image *> images) {

esphome/components/lvgl/widgets/meter.py

@@ -27,7 +27,7 @@ from ..defines import (
     CONF_START_VALUE,
     CONF_TICKS,
 )
-from ..helpers import add_lv_use
+from ..helpers import add_lv_use, lvgl_components_required
 from ..lv_validation import (
     angle,
     get_end_value,
@@ -182,6 +182,7 @@ class MeterType(WidgetType):
     async def to_code(self, w: Widget, config):
         """For a meter object, create and set parameters"""
 
+        lvgl_components_required.add(CONF_METER)
         var = w.obj
         for scale_conf in config.get(CONF_SCALES, ()):
             rotation = 90 + (360 - scale_conf[CONF_ANGLE_RANGE]) / 2

esphome/core/defines.h

@@ -49,6 +49,7 @@
 #define USE_LVGL_IMAGE
 #define USE_LVGL_KEY_LISTENER
 #define USE_LVGL_KEYBOARD
+#define USE_LVGL_METER
 #define USE_LVGL_ROLLER
 #define USE_LVGL_ROTARY_ENCODER
 #define USE_LVGL_TOUCHSCREEN

tests/components/lvgl/lvgl-package.yaml

@@ -132,6 +132,7 @@ lvgl:
 
   pages:
     - id: page1
+      bg_image_src: cat_image
       on_load:
         - logger.log: page loaded
         - lvgl.widget.focus: