LVGL add helper functions (#20968)

lib/libesp32_lvgl/lv_binding_berry/generate/LVGL_API_Reference.md

@@ -117,8 +117,6 @@ point_set|comptr, int, int||[lv_point_set](https://docs.lvgl.io/9.0/search.html?
 point_swap|comptr, comptr||[lv_point_swap](https://docs.lvgl.io/9.0/search.html?q=lv_point_swap)
 point_transform|comptr, int, int, int, comptr, bool||[lv_point_transform](https://docs.lvgl.io/9.0/search.html?q=lv_point_transform)
 refr_now|lv.display||[lv_refr_now](https://docs.lvgl.io/9.0/search.html?q=lv_refr_now)
-scale_section_set_range|comptr, int, int||[lv_scale_section_set_range](https://docs.lvgl.io/9.0/search.html?q=lv_scale_section_set_range)
-scale_section_set_style|comptr, int, lv.style||[lv_scale_section_set_style](https://docs.lvgl.io/9.0/search.html?q=lv_scale_section_set_style)
 scr_act||lv.obj|[lv_screen_active](https://docs.lvgl.io/9.0/search.html?q=lv_screen_active)
 scr_load|lv.obj||[lv_screen_load](https://docs.lvgl.io/9.0/search.html?q=lv_screen_load)
 scr_load_anim|lv.obj, int, int, int, bool||[lv_screen_load_anim](https://docs.lvgl.io/9.0/search.html?q=lv_screen_load_anim)
@@ -1166,6 +1164,8 @@ set_text_static|string||[lv_label_set_text_static](https://docs.lvgl.io/9.0/sear
 
 Method|Arguments|Return type|LVGL equivalent
 :---|:---|:---|:---
+get_points||comptr|[lv_line_get_points](https://docs.lvgl.io/9.0/search.html?q=lv_line_get_points)
+get_points_num||int|[lv_line_get_points_num](https://docs.lvgl.io/9.0/search.html?q=lv_line_get_points_num)
 get_y_invert||bool|[lv_line_get_y_invert](https://docs.lvgl.io/9.0/search.html?q=lv_line_get_y_invert)
 set_points|lv.point_arr, int||[lv_line_set_points](https://docs.lvgl.io/9.0/search.html?q=lv_line_set_points)
 set_y_invert|bool||[lv_line_set_y_invert](https://docs.lvgl.io/9.0/search.html?q=lv_line_set_y_invert)
@@ -1303,11 +1303,18 @@ get_style||lv.style|[lv_span_get_style](https://docs.lvgl.io/9.0/search.html?q=l
 set_text|string||[lv_span_set_text](https://docs.lvgl.io/9.0/search.html?q=lv_span_set_text)
 set_text_static|string||[lv_span_set_text_static](https://docs.lvgl.io/9.0/search.html?q=lv_span_set_text_static)
 
+### widget `lv.scale_section`
+
+Method|Arguments|Return type|LVGL equivalent
+:---|:---|:---|:---
+set_range|int, int||[lv_scale_section_set_range](https://docs.lvgl.io/9.0/search.html?q=lv_scale_section_set_range)
+set_style|int, lv.style||[lv_scale_section_set_style](https://docs.lvgl.io/9.0/search.html?q=lv_scale_section_set_style)
+
 ### widget `lv.scale`
 
 Method|Arguments|Return type|LVGL equivalent
 :---|:---|:---|:---
-add_section||comptr|[lv_scale_add_section](https://docs.lvgl.io/9.0/search.html?q=lv_scale_add_section)
+add_section||lv.scale_section|[lv_scale_add_section](https://docs.lvgl.io/9.0/search.html?q=lv_scale_add_section)
 get_angle_range||int|[lv_scale_get_angle_range](https://docs.lvgl.io/9.0/search.html?q=lv_scale_get_angle_range)
 get_label_show||bool|[lv_scale_get_label_show](https://docs.lvgl.io/9.0/search.html?q=lv_scale_get_label_show)
 get_major_tick_every||int|[lv_scale_get_major_tick_every](https://docs.lvgl.io/9.0/search.html?q=lv_scale_get_major_tick_every)

lib/libesp32_lvgl/lv_binding_berry/generate/be_lv_c_mapping.h

@@ -1074,6 +1074,8 @@ const be_ntv_func_def_t lv_led_func[] = {
 /* `lv_line` methods */
 #ifdef BE_LV_WIDGET_LINE
 const be_ntv_func_def_t lv_line_func[] = {
+  { "get_points", { (const void*) &lv_line_get_points, "c", "(lv.obj)" } },
+  { "get_points_num", { (const void*) &lv_line_get_points_num, "i", "(lv.obj)" } },
   { "get_y_invert", { (const void*) &lv_line_get_y_invert, "b", "(lv.obj)" } },
   { "set_points", { (const void*) &lv_line_set_points, "", "(lv.obj)(lv.point_arr)i" } },
   { "set_y_invert", { (const void*) &lv_line_set_y_invert, "", "(lv.obj)b" } },
@@ -1149,7 +1151,7 @@ const be_ntv_func_def_t lv_roller_func[] = {
 /* `lv_scale` methods */
 #ifdef BE_LV_WIDGET_SCALE
 const be_ntv_func_def_t lv_scale_func[] = {
-  { "add_section", { (const void*) &lv_scale_add_section, "c", "(lv.obj)" } },
+  { "add_section", { (const void*) &lv_scale_add_section, "lv.scale_section", "(lv.obj)" } },
   { "get_angle_range", { (const void*) &lv_scale_get_angle_range, "i", "(lv.obj)" } },
   { "get_label_show", { (const void*) &lv_scale_get_label_show, "b", "(lv.obj)" } },
   { "get_major_tick_every", { (const void*) &lv_scale_get_major_tick_every, "i", "(lv.obj)" } },
@@ -1172,6 +1174,14 @@ const be_ntv_func_def_t lv_scale_func[] = {
 };
 #endif // BE_LV_WIDGET_SCALE
 
+/* `lv_scale_section` methods */
+#ifdef BE_LV_WIDGET_SCALE_SECTION
+const be_ntv_func_def_t lv_scale_section_func[] = {
+  { "set_range", { (const void*) &lv_scale_section_set_range, "", "(lv.scale_section)ii" } },
+  { "set_style", { (const void*) &lv_scale_section_set_style, "", "(lv.scale_section)i(lv.style)" } },
+};
+#endif // BE_LV_WIDGET_SCALE_SECTION
+
 /* `lv_slider` methods */
 #ifdef BE_LV_WIDGET_SLIDER
 const be_ntv_func_def_t lv_slider_func[] = {
@@ -1384,6 +1394,7 @@ extern const bclass be_class_lv_obj;
 extern const bclass be_class_lv_qrcode;
 extern const bclass be_class_lv_roller;
 extern const bclass be_class_lv_scale;
+extern const bclass be_class_lv_scale_section;
 extern const bclass be_class_lv_slider;
 extern const bclass be_class_lv_span;
 extern const bclass be_class_lv_spangroup;
@@ -1477,6 +1488,9 @@ const be_ntv_class_def_t lv_classes[] = {
 #ifdef BE_LV_WIDGET_SCALE
   { "lv_scale", &be_class_lv_scale, lv_scale_func, sizeof(lv_scale_func) / sizeof(lv_scale_func[0]) },
 #endif // BE_LV_WIDGET_SCALE
+#ifdef BE_LV_WIDGET_SCALE_SECTION
+  { "lv_scale_section", &be_class_lv_scale_section, lv_scale_section_func, sizeof(lv_scale_section_func) / sizeof(lv_scale_section_func[0]) },
+#endif // BE_LV_WIDGET_SCALE_SECTION
 #ifdef BE_LV_WIDGET_SLIDER
   { "lv_slider", &be_class_lv_slider, lv_slider_func, sizeof(lv_slider_func) / sizeof(lv_slider_func[0]) },
 #endif // BE_LV_WIDGET_SLIDER
@@ -1634,6 +1648,10 @@ const size_t lv_classes_size = sizeof(lv_classes) / sizeof(lv_classes[0]);
 #ifdef BE_LV_WIDGET_SCALE
   int be_ntv_lv_scale_init(bvm *vm)       { return be_call_c_func(vm, (void*) &lv_scale_create, "+_p", "(lv.obj)"); }
 #endif // BE_LV_WIDGET_SCALE
+  /* `lv_scale_section` methods */
+#ifdef BE_LV_WIDGET_SCALE_SECTION
+  int be_ntv_lv_scale_section_init(bvm *vm)       { return be_call_c_func(vm, (void*) &lv_scale_section_set_style, "+_p", "(lv.scale_section)i(lv.style)"); }
+#endif // BE_LV_WIDGET_SCALE_SECTION
   /* `lv_slider` methods */
 #ifdef BE_LV_WIDGET_SLIDER
   int be_ntv_lv_slider_init(bvm *vm)       { return be_call_c_func(vm, (void*) &lv_slider_create, "+_p", "(lv.obj)"); }

lib/libesp32_lvgl/lv_binding_berry/generate/be_lvgl_module.c

@@ -139,8 +139,6 @@ const be_ntv_func_def_t lv_func[] = {
   { "point_swap", { (const void*) &lv_point_swap, "", "cc" } },
   { "point_transform", { (const void*) &lv_point_transform, "", "ciiicb" } },
   { "refr_now", { (const void*) &lv_refr_now, "", "(lv.display)" } },
-  { "scale_section_set_range", { (const void*) &lv_scale_section_set_range, "", "cii" } },
-  { "scale_section_set_style", { (const void*) &lv_scale_section_set_style, "", "ci(lv.style)" } },
   { "scr_act", { (const void*) &lv_screen_active, "lv.obj", "" } },
   { "scr_load", { (const void*) &lv_screen_load, "", "(lv.obj)" } },
   { "scr_load_anim", { (const void*) &lv_screen_load_anim, "", "(lv.obj)iiib" } },

lib/libesp32_lvgl/lv_binding_berry/generate/be_lvgl_widgets_lib.c

@@ -20,6 +20,7 @@ extern int lv_x_member(bvm *vm);
 extern int lv_x_tostring(bvm *vm);       // generic function
 
 extern int lv_be_style_init(bvm *vm);
+extern int lv_be_style_del(bvm *vm);
 extern int lv_be_anim_init(bvm *vm);
 extern int lv_x_tostring(bvm *vm);
 
@@ -62,6 +63,7 @@ extern int be_ntv_lv_menu_init(bvm *vm);
 extern int be_ntv_lv_msgbox_init(bvm *vm);
 extern int be_ntv_lv_roller_init(bvm *vm);
 extern int be_ntv_lv_scale_init(bvm *vm);
+extern int be_ntv_lv_scale_section_init(bvm *vm);
 extern int be_ntv_lv_slider_init(bvm *vm);
 extern int be_ntv_lv_span_init(bvm *vm);
 extern int be_ntv_lv_spangroup_init(bvm *vm);
@@ -103,6 +105,7 @@ extern const bclass be_class_lv_obj;
 extern const bclass be_class_lv_qrcode;
 extern const bclass be_class_lv_roller;
 extern const bclass be_class_lv_scale;
+extern const bclass be_class_lv_scale_section;
 extern const bclass be_class_lv_slider;
 extern const bclass be_class_lv_span;
 extern const bclass be_class_lv_spangroup;
@@ -126,6 +129,7 @@ extern const bclass be_class_lv_timer;
 class be_class_lv_style (scope: global, name: lv_style, strings: weak) {
     _p, var
     init, func(lv_be_style_init)
+    del, func(lv_be_style_del)
     tostring, func(lv_x_tostring)
     member, func(lv_x_member)
 }
@@ -507,6 +511,16 @@ class be_class_lv_scale (scope: global, name: lv_scale, super: be_class_lv_obj,
 }
 @const_object_info_end */
 
+/********************************************************************
+** Solidified class: lv_scale_section
+********************************************************************/
+#include "be_fixed_be_class_lv_scale_section.h"
+/* @const_object_info_begin
+class be_class_lv_scale_section (scope: global, name: lv_scale_section, super: be_class_lv_obj, strings: weak) {
+    init, func(be_ntv_lv_scale_section_init)
+}
+@const_object_info_end */
+
 /********************************************************************
 ** Solidified class: lv_slider
 ********************************************************************/

lib/libesp32_lvgl/lv_binding_berry/mapping/lv_funcs.h

@@ -1489,4 +1489,6 @@ void be_load_lvgl_classes(bvm *vm)
 void lv_image_set_tasmota_logo(lv_obj_t * img)
 lv_style_t * lv_span_get_style(lv_span_t * span)
 lv_area_t * lv_bar_get_indic_area(lv_obj_t * bar)
+lv_point_t * lv_line_get_points(lv_obj_t * line)
+int lv_line_get_points_num(lv_obj_t * line)
 

lib/libesp32_lvgl/lv_binding_berry/src/lv_berry.c

@@ -82,14 +82,27 @@ int lv_be_style_init(bvm *vm) {
     if (style == NULL) {
         be_throw(vm, BE_MALLOC_FAIL);
     }
-    if (style != NULL) {
+    lv_style_init(style);
-      lv_style_init(style);
-    }
   }
   be_pushcomptr(vm, style);
   be_setmember(vm, 1, "_p");
   be_return_nil(vm);
 }
+/*********************************************************************************************\
+ * Delete style
+ * 
+ * Use with caution, it shouldn't be referenced after this call
+\*********************************************************************************************/
+int lv_be_style_del(bvm *vm) {
+  be_getmember(vm, 1, "_p");
+  lv_style_t * style = be_tocomptr(vm, -1);
+  if (style != NULL) {
+    be_free(vm, style, sizeof(lv_style_t));
+  }
+  be_pushcomptr(vm, NULL);
+  be_setmember(vm, 1, "_p");
+  be_return_nil(vm);
+}
 
 /*********************************************************************************************\
  * Support for lv_anim `init()`
@@ -384,3 +397,10 @@ lv_style_t * lv_span_get_style(lv_span_t * span) {
 lv_area_t * lv_bar_get_indic_area(lv_obj_t * bar) {
   return &((lv_bar_t*)bar)->indic_area;
 }
+// add accessor for lv_line points array
+lv_point_t * lv_line_get_points(lv_obj_t * line) {
+  return &((lv_line_t*)line)->point_array[0];
+}
+int lv_line_get_points_num(lv_obj_t * line) {
+  return ((lv_line_t*)line)->point_num;
+}

lib/libesp32_lvgl/lv_binding_berry/src/lv_berry.h

@@ -31,6 +31,10 @@ extern lv_style_t * lv_span_get_style(lv_span_t * span);
 // add accessor for lv_bar->indic_area
 extern lv_area_t * lv_bar_get_indic_area(lv_obj_t * bar);
 
+// add accessor for lv_line points array
+extern lv_point_t * lv_line_get_points(lv_obj_t * line);
+extern int lv_line_get_points_num(lv_obj_t * line);
+
 #ifdef __cplusplus
 }
 #endif

lib/libesp32_lvgl/lv_binding_berry/tools/convert.py

@@ -35,9 +35,10 @@ lv_widgets = ['obj',
               'dropdown', 'image', 'label', 'line', 'roller', 'slider',
               'switch', 'table', 'textarea',
               # added in LVGL 9
-              'spangroup', 'span', 'scale',
+              'spangroup', 'span',
+              'scale_section', 'scale',   # 'scale_section' needs to be before 'scale' to capture more selective first
               ]
-lv_widgets_no_class = ['span']      # widgets that don't have a lv_obj class
+lv_widgets_no_class = ['span', 'scale_section']      # widgets that don't have a lv_obj class
 # extra widgets
 lv_widgets = lv_widgets + [ 'chart', 'imagebutton', 'led', 'msgbox', 'spinbox', 'spinner', 'keyboard', 'tabview', 'tileview' , 'list',
                             'animimg', 'calendar', 'menu']
@@ -349,7 +350,6 @@ class type_mapper_class:
     "lv_span_mode_t": "i",
     "lv_vector_path_t *": "c",    # treat as opaque pointer
     "lv_vector_dsc_t *": "c",     # treat as opaque pointer
-    "lv_scale_section_t *": "c",  # treat as opaque pointer
     "lv_point_t *": "c",          # treat as opaque pointer
     "lv_hit_test_info_t *": "c",  # treat as opaque pointer
     "lv_screen_load_anim_t": "i",
@@ -424,6 +424,7 @@ class type_mapper_class:
     "lv_indev_t *": "lv_indev",
     "lv_point_t []": "lv_point_arr",
     "lv_span_t *": "lv_span",
+    "lv_scale_section_t *": "lv_scale_section",  # treat as opaque pointer
     # "lv_image_header_t *": "lv_image_header",
     "lv_image_dsc_t *": "lv_image_dsc",
     "lv_ts_calibration_t *": "lv_ts_calibration",
@@ -890,6 +891,7 @@ extern int lv_x_member(bvm *vm);
 extern int lv_x_tostring(bvm *vm);       // generic function
 
 extern int lv_be_style_init(bvm *vm);
+extern int lv_be_style_del(bvm *vm);
 extern int lv_be_anim_init(bvm *vm);
 extern int lv_x_tostring(bvm *vm);
 
@@ -922,6 +924,7 @@ print("""
 class be_class_lv_style (scope: global, name: lv_style, strings: weak) {
     _p, var
     init, func(lv_be_style_init)
+    del, func(lv_be_style_del)
     tostring, func(lv_x_tostring)
     member, func(lv_x_member)
 }

tasmota/my_user_config.h

@@ -1241,6 +1241,7 @@ https://rya.nc/tasmota-fingerprint.html"
     #define BE_LV_WIDGET_MSGBOX
     #define BE_LV_WIDGET_QRCODE
     #define BE_LV_WIDGET_SCALE
+    #define BE_LV_WIDGET_SCALE_SECTION
     // #define BE_LV_WIDGET_SPINBOX
     #define BE_LV_WIDGET_SPINNER
     #define BE_LV_WIDGET_SPANGROUP