chore: move font/event define to lv_types.h (#5195)

Co-authored-by: Gabor Kiss-Vamosi <kisvegabor@gmail.com>

src/core/lv_global.h

@@ -119,15 +119,15 @@ typedef struct _lv_global_t {
 #endif
 
 #if LV_USE_THEME_SIMPLE
-    my_theme_t * theme_simple;
+    void * theme_simple;
 #endif
 
 #if LV_USE_THEME_DEFAULT
-    my_theme_t * theme_default;
+    void * theme_default;
 #endif
 
 #if LV_USE_THEME_MONO
-    my_theme_t * theme_mono;
+    void * theme_mono;
 #endif
 
 #if LV_USE_STDLIB_MALLOC == LV_STDLIB_BUILTIN

src/font/lv_font.h

@@ -20,6 +20,7 @@ extern "C" {
 
 #include "lv_symbol_def.h"
 #include "../misc/lv_area.h"
+#include "../misc/lv_types.h"
 #include "../misc/cache/lv_cache.h"
 
 /*********************
@@ -80,7 +81,7 @@ typedef uint8_t lv_font_kerning_t;
 #endif /*DOXYGEN*/
 
 /** Describe the properties of a font*/
-typedef struct _lv_font_t {
+struct _lv_font_t {
     /** Get a glyph's descriptor from a font*/
     bool (*get_glyph_dsc)(const lv_font_t *, lv_font_glyph_dsc_t *, uint32_t letter, uint32_t letter_next);
 
@@ -102,7 +103,7 @@ typedef struct _lv_font_t {
     const void * dsc;               /**< Store implementation specific or run_time data or caching here*/
     const lv_font_t * fallback;   /**< Fallback font for missing glyph. Resolved recursively */
     void * user_data;               /**< Custom user data for font.*/
-} lv_font_t;
+};
 
 /**********************
  * GLOBAL PROTOTYPES

src/misc/lv_event.h

@@ -119,7 +119,7 @@ typedef struct {
     uint32_t cnt;
 } lv_event_list_t;
 
-typedef struct _lv_event_t {
+struct _lv_event_t {
     void * current_target;
     void * original_target;
     lv_event_code_t code;
@@ -129,7 +129,7 @@ typedef struct _lv_event_t {
     uint8_t deleted : 1;
     uint8_t stop_processing : 1;
     uint8_t stop_bubbling : 1;
-} lv_event_t;
+};
 
 /**
  * @brief Event callback.

src/misc/lv_types.h

@@ -140,9 +140,6 @@ typedef struct _lv_anim_t lv_anim_t;
 struct _lv_font_t;
 typedef struct _lv_font_t lv_font_t;
 
-struct _my_theme_t;
-typedef struct _my_theme_t my_theme_t;
-
 struct _lv_image_decoder_t;
 typedef struct _lv_image_decoder_t lv_image_decoder_t;
 

src/themes/default/lv_theme_default.c

@@ -17,7 +17,11 @@
 /*********************
  *      DEFINES
  *********************/
-#define theme_def (LV_GLOBAL_DEFAULT()->theme_default)
+
+struct _my_theme_t;
+typedef struct _my_theme_t my_theme_t;
+
+#define theme_def (*(my_theme_t **)(&LV_GLOBAL_DEFAULT()->theme_default))
 
 #define MODE_DARK 1
 #define RADIUS_DEFAULT _LV_DPX_CALC(theme->disp_dpi, theme->disp_size == DISP_LARGE ? 12 : 8)

src/themes/mono/lv_theme_mono.c

@@ -16,7 +16,10 @@
 /*********************
  *      DEFINES
  *********************/
-#define theme_def (LV_GLOBAL_DEFAULT()->theme_mono)
+struct _my_theme_t;
+typedef struct _my_theme_t my_theme_t;
+
+#define theme_def (*(my_theme_t **)(&LV_GLOBAL_DEFAULT()->theme_mono))
 
 #define COLOR_FG      dark_bg ? lv_color_white() : lv_color_black()
 #define COLOR_BG      dark_bg ? lv_color_black() : lv_color_white()

src/themes/simple/lv_theme_simple.c

@@ -16,7 +16,11 @@
 /*********************
  *      DEFINES
  *********************/
-#define theme_def (LV_GLOBAL_DEFAULT()->theme_simple)
+
+struct _my_theme_t;
+typedef struct _my_theme_t my_theme_t;
+
+#define theme_def (*(my_theme_t **)(&LV_GLOBAL_DEFAULT()->theme_simple))
 
 #define COLOR_SCR     lv_palette_lighten(LV_PALETTE_GREY, 4)
 #define COLOR_WHITE   lv_color_white()