Description
After update from 9.1 to 9.2 extends current theme example doesn’t work. raise this error
error: aggregate 'lv_theme_t th_new' has incomplete type and cannot be defined
static lv_theme_t th_new;
^~~~~~
What MCU/Processor/Board and compiler are you using?
ESP32S3 and Platformio
What LVGL version are you using?
9.2
What do you want to achieve?
Works like the 9.1
Code to reproduce
I try with my code and with example in LVGL doc
LVGL example
#include "../../src/themes/lv_theme_private.h"
#include "../lv_examples.h"
#if LV_BUILD_EXAMPLES && LV_USE_IMAGE
static lv_style_t style_btn;
/*Will be called when the styles of the base theme are already added
to add new styles*/
static void new_theme_apply_cb(lv_theme_t * th, lv_obj_t * obj)
{
LV_UNUSED(th);
if(lv_obj_check_type(obj, &lv_button_class)) {
lv_obj_add_style(obj, &style_btn, 0);
}
}
static void new_theme_init_and_set(void)
{
/*Initialize the styles*/
lv_style_init(&style_btn);
lv_style_set_bg_color(&style_btn, lv_palette_main(LV_PALETTE_GREEN));
lv_style_set_border_color(&style_btn, lv_palette_darken(LV_PALETTE_GREEN, 3));
lv_style_set_border_width(&style_btn, 3);
/*Initialize the new theme from the current theme*/
lv_theme_t * th_act = lv_display_get_theme(NULL);
static lv_theme_t th_new;
th_new = *th_act;
/*Set the parent theme and the style apply callback for the new theme*/
lv_theme_set_parent(&th_new, th_act);
lv_theme_set_apply_cb(&th_new, new_theme_apply_cb);
/*Assign the new theme to the current display*/
lv_display_set_theme(NULL, &th_new);
}
/**
* Extending the current theme
*/
void lv_example_style_14(void)
{
lv_obj_t * btn;
lv_obj_t * label;
btn = lv_button_create(lv_screen_active());
lv_obj_align(btn, LV_ALIGN_TOP_MID, 0, 20);
label = lv_label_create(btn);
lv_label_set_text(label, "Original theme");
new_theme_init_and_set();
btn = lv_button_create(lv_screen_active());
lv_obj_align(btn, LV_ALIGN_BOTTOM_MID, 0, -20);
label = lv_label_create(btn);
lv_label_set_text(label, "New theme");
}
#endif
My code for init and set the theme is this:
void new_theme_init_and_set(void)
{
/*Initialize the styles*/
lv_style_init(&styleThemeBkg);
lv_style_set_bg_color(&styleThemeBkg, lv_color_black());
lv_style_set_border_color(&styleThemeBkg, lv_color_hex(objectColor));
lv_style_init(&styleObjectBkg);
lv_style_set_bg_color(&styleObjectBkg, lv_color_hex(objectColor));
lv_style_set_border_color(&styleObjectBkg, lv_color_hex(objectColor));
lv_style_init(&styleObjectSel);
lv_style_set_bg_color(&styleObjectSel, lv_color_hex(0x757575));
/*Initialize the new theme from the current theme*/
lv_theme_t *th_act = lv_disp_get_theme(NULL);
static lv_theme_t th_new;
th_new = *th_act;
/*Set the parent theme and the style apply callback for the new theme*/
lv_theme_set_parent(&th_new, th_act);
lv_theme_set_apply_cb(&th_new, applyModifyTheme);
/*Assign the new theme to the current display*/
lv_disp_set_theme(NULL, &th_new);
}
``