update the changelog

Co-authored-by: Hopper Automation <automation_hopper@hopper.com>

docs/CHANGELOG.md

@@ -1,7 +1,27 @@
 # Changelog
 
+## [v8.3.1](https://github.com/lvgl/lvgl/compare/v8.3.0...v8.3.1) 25 July 2022
 
-## [v8.2.0](https://github.com/lvgl/lvgl/compare/v8.2.0...v8.2.0) 6 July 2022
+### Fixes
+
+- fix(led): add bg_color draw descriptors back to led draw event to support LV_DRAW_COMPLEX 0 [`3515`](https://github.com/lvgl/lvgl/pull/3515)
+- fix(slider): fix knob drawing in symmetrical mode [`2967172`](https://github.com/lvgl/lvgl/commit/2967172bee806e77da6ee2307c79e867af3f76bc)
+- fix(refr): fix lv_refr_get_top_obj [`9750c97`](https://github.com/lvgl/lvgl/commit/9750c97aff4dc3de80559b150852b829f006d6bf)
+- fix(arc): fix arc knob invalidation in SYMMETRICAL mode [`a283273`](https://github.com/lvgl/lvgl/commit/a283273bd27599dae6b044a941b6591ad45e059b)
+
+### Examples
+
+- example(freetype): Update the Micropython example to use the Lato font [`71913d3`](https://github.com/lvgl/lvgl/commit/71913d300dde25d1b87d1b44fa1fa47854defd59)
+- example(freetype): replace the arial font with lato to avoid licensing issues [`8544cc3`](https://github.com/lvgl/lvgl/commit/8544cc38062d9c817013bbe6aedbb47112e580ad)
+
+### Docs
+
+- docs(readme): fix LVGL version typo (8.3.0) [`3462`](https://github.com/lvgl/lvgl/pull/3462)
+- docs(tasmota): support LVGL 8.3.0 (#3511) [`62662f6`](https://github.com/lvgl/lvgl/commit/62662f68e9cf90adcb96d42030eca5fa135b96a5)
+
+
+
+## [v8.3.0](https://github.com/lvgl/lvgl/compare/v8.2.0...v8.3.0) 6 July 2022
 
 
 ### Overview

docs/get-started/platforms/tasmota-berry.md

@@ -31,7 +31,7 @@ In 2021, Tasmota added full support of LVGL for ESP32 based devices. It also int
 
 A comprehensive mapping of LVGL in Berry language is now available, similar to the mapping of Micropython. It allows to use +98% of all LVGL features. It is also possible to write custom widgets in Berry.
 
-Versions supported: LVGL v8.0.2, LodePNG v20201017, Freetype 2.10.4
+Versions supported: LVGL v8.3.0, LodePNG v20201017, Freetype 2.10.4
 
 ### Tasmota + Berry + LVGL could be used for:
 

examples/libs/freetype/lv_example_freetype_1.c

@@ -10,7 +10,7 @@ void lv_example_freetype_1(void)
     /*Create a font*/
     static lv_ft_info_t info;
     /*FreeType uses C standard file system, so no driver letter is required.*/
-    info.name = "./lvgl/examples/libs/freetype/arial.ttf";
+    info.name = "./lvgl/examples/libs/freetype/Lato-Regular.ttf";
     info.weight = 24;
     info.style = FT_FONT_STYLE_NORMAL;
     info.mem = NULL;

examples/libs/freetype/lv_example_freetype_1.py

@@ -4,7 +4,7 @@ import display_driver
 import fs_driver
 
 info = lv.ft_info_t()
-info.name ="./arial.ttf"
+info.name ="./Lato-Regular.ttf"
 info.weight = 24
 info.style = lv.FT_FONT_STYLE.NORMAL
 info.font_init()

library.json

@@ -1,6 +1,6 @@
 {
 	"name": "lvgl",
-	"version": "8.3.0",
+	"version": "8.3.1",
 	"keywords": "graphics, gui, embedded, tft, lvgl",
 	"description": "Graphics library to create embedded GUI with easy-to-use graphical elements, beautiful visual effects and low memory footprint. It offers anti-aliasing, opacity, and animations using only one frame buffer.",
 	"repository": {

library.properties

@@ -1,5 +1,5 @@
 name=lvgl
-version=8.3.0
+version=8.3.1
 author=kisvegabor
 maintainer=kisvegabor,embeddedt,pete-pjb
 sentence=Full-featured Graphics Library for Embedded Systems

lv_conf_template.h

@@ -1,6 +1,6 @@
 /**
  * @file lv_conf.h
- * Configuration file for v8.3.0
+ * Configuration file for v8.3.1
  */
 
 /*

lvgl.h

@@ -15,7 +15,7 @@ extern "C" {
  ***************************/
 #define LVGL_VERSION_MAJOR 8
 #define LVGL_VERSION_MINOR 3
-#define LVGL_VERSION_PATCH 0
+#define LVGL_VERSION_PATCH 1
 #define LVGL_VERSION_INFO ""
 
 /*********************

src/core/lv_refr.c

@@ -738,9 +738,9 @@ static lv_obj_t * lv_refr_get_top_obj(const lv_area_t * area_p, lv_obj_t * obj)
     lv_event_send(obj, LV_EVENT_COVER_CHECK, &info);
     if(info.res == LV_COVER_RES_MASKED) return NULL;
 
-    uint32_t i;
-    uint32_t child_cnt = lv_obj_get_child_cnt(obj);
-    for(i = 0; i < child_cnt; i++) {
+    int32_t i;
+    int32_t child_cnt = lv_obj_get_child_cnt(obj);
+    for(i = child_cnt - 1; i >= 0; i--) {
         lv_obj_t * child = obj->spec_attr->children[i];
         found_p = lv_refr_get_top_obj(area_p, child);
 

src/extra/widgets/led/lv_led.c

@@ -178,6 +178,7 @@ static void lv_led_event(const lv_obj_class_t * class_p, lv_event_t * e)
         lv_obj_init_draw_rect_dsc(obj, LV_PART_MAIN, &rect_dsc);
 
         /*Use the original colors brightness to modify color->led*/
+        rect_dsc.bg_color = lv_color_mix(led->color, lv_color_black(), lv_color_brightness(rect_dsc.bg_color));
         rect_dsc.bg_grad.stops[0].color = lv_color_mix(led->color, lv_color_black(),
                                                        lv_color_brightness(rect_dsc.bg_grad.stops[0].color));
         rect_dsc.bg_grad.stops[1].color = lv_color_mix(led->color, lv_color_black(),
@@ -187,6 +188,7 @@ static void lv_led_event(const lv_obj_class_t * class_p, lv_event_t * e)
         rect_dsc.outline_color = lv_color_mix(led->color, lv_color_black(), lv_color_brightness(rect_dsc.outline_color));
 
         /*Mix. the color with black proportionally with brightness*/
+        rect_dsc.bg_color = lv_color_mix(rect_dsc.bg_color, lv_color_black(), led->bright);
         rect_dsc.bg_grad.stops[0].color   = lv_color_mix(rect_dsc.bg_grad.stops[0].color, lv_color_black(), led->bright);
         rect_dsc.bg_grad.stops[1].color   = lv_color_mix(rect_dsc.bg_grad.stops[1].color, lv_color_black(), led->bright);
         rect_dsc.border_color = lv_color_mix(rect_dsc.border_color, lv_color_black(), led->bright);

src/widgets/lv_arc.c

@@ -757,9 +757,15 @@ static lv_coord_t get_angle(const lv_obj_t * obj)
         angle += arc->indic_angle_start;
     }
     else if(arc->type == LV_ARC_MODE_SYMMETRICAL) {
-        int32_t range_midpoint = (int32_t)(arc->min_value + arc->max_value) / 2;
-        if(arc->value < range_midpoint) angle += arc->indic_angle_start;
-        else angle += arc->indic_angle_end;
+        int16_t bg_end = arc->bg_angle_end;
+        if(arc->bg_angle_end < arc->bg_angle_start) bg_end = arc->bg_angle_end + 360;
+        int16_t indic_end = arc->indic_angle_end;
+        if(arc->indic_angle_end < arc->indic_angle_start) indic_end = arc->indic_angle_end + 360;
+
+        int32_t angle_midpoint = (int32_t)(arc->bg_angle_start + bg_end) / 2;
+        if(arc->indic_angle_start < angle_midpoint) angle += arc->indic_angle_start;
+        else if(indic_end > angle_midpoint) angle += arc->indic_angle_end;
+        else angle += angle_midpoint;
     }
 
     return angle;

src/widgets/lv_slider.c

@@ -238,7 +238,6 @@ static void lv_slider_event(const lv_obj_class_t * class_p, lv_event_t * e)
         }
 
         new_value = LV_CLAMP(real_min_value, new_value, real_max_value);
-
         if(*slider->value_to_set != new_value) {
             *slider->value_to_set = new_value;
             lv_obj_invalidate(obj);
@@ -337,15 +336,16 @@ static void draw_knob(lv_event_t * e)
 
     lv_area_t knob_area;
     lv_coord_t knob_size;
+    bool is_symmetrical = false;
+    if(slider->bar.mode == LV_BAR_MODE_SYMMETRICAL && slider->bar.min_value < 0 &&
+       slider->bar.max_value > 0) is_symmetrical = true;
+
     if(is_horizontal) {
         knob_size = lv_obj_get_height(obj);
-        knob_area.x1 = LV_SLIDER_KNOB_COORD(is_rtl, slider->bar.indic_area);
+        if(is_symmetrical && slider->bar.cur_value < 0) knob_area.x1 = slider->bar.indic_area.x1;
+        else knob_area.x1 = LV_SLIDER_KNOB_COORD(is_rtl, slider->bar.indic_area);
     }
     else {
-        bool is_symmetrical = false;
-        if(slider->bar.mode == LV_BAR_MODE_SYMMETRICAL && slider->bar.min_value < 0 &&
-           slider->bar.max_value > 0) is_symmetrical = true;
-
         knob_size = lv_obj_get_width(obj);
         if(is_symmetrical && slider->bar.cur_value < 0) knob_area.y1 = slider->bar.indic_area.y2;
         else knob_area.y1 = slider->bar.indic_area.y1;