mirror of
https://github.com/shchmue/Lockpick_RCM.git
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118 lines
2.4 KiB
C
118 lines
2.4 KiB
C
/**
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* @file lv_lang.c
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*
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*/
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/*********************
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* INCLUDES
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*********************/
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#include "lv_lang.h"
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#if USE_LV_MULTI_LANG
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#include "lv_obj.h"
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#include "../lv_misc/lv_gc.h"
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/*********************
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* DEFINES
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*********************/
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/**********************
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* TYPEDEFS
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**********************/
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/**********************
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* STATIC PROTOTYPES
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**********************/
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static void lang_set_core(lv_obj_t * obj);
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/**********************
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* STATIC VARIABLES
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**********************/
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static uint8_t lang_act = 0;
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static const void * (*get_txt)(uint16_t);
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/**********************
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* MACROS
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**********************/
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/**********************
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* GLOBAL FUNCTIONS
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**********************/
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/**
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* Change the language
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* @param lang_id the id of the
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*/
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void lv_lang_set(uint8_t lang_id)
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{
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lang_act = lang_id;
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lv_obj_t * i;
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LL_READ(LV_GC_ROOT(_lv_scr_ll), i) {
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i->signal_func(i, LV_SIGNAL_LANG_CHG, NULL);
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lang_set_core(i);
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}
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lang_set_core(lv_scr_act());
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}
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/**
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* Set a function to get the texts of the set languages from a `txt_id`
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* @param fp a function pointer to get the texts
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*/
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void lv_lang_set_text_func(const void * (*fp)(uint16_t))
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{
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get_txt = fp;
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}
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/**
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* Use the function set by `lv_lang_set_text_func` to get the `txt_id` text in the set language
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* @param txt_id an ID of the text to get
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* @return the `txt_id` txt on the set language
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*/
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const void * lv_lang_get_text(uint16_t txt_id)
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{
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if(get_txt == NULL) {
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LV_LOG_WARN("lv_lang_get_text: text_func is not specified");
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return NULL; /*No text_get function specified */
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}
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if(txt_id == LV_LANG_TXT_ID_NONE) {
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LV_LOG_WARN("lv_lang_get_text: attempts to get invalid text ID");
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return NULL; /*Invalid txt_id*/
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}
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return get_txt(txt_id);
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}
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/**
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* Return with ID of the currently selected language
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* @return pointer to the active screen object (loaded by 'lv_scr_load()')
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*/
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uint8_t lv_lang_act(void)
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{
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return lang_act;
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}
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/**********************
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* STATIC FUNCTIONS
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**********************/
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/**
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* Change the language of the children. (Called recursively)
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* @param obj pointer to an object
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*/
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static void lang_set_core(lv_obj_t * obj)
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{
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lv_obj_t * i;
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LL_READ(obj->child_ll, i) {
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i->signal_func(i, LV_SIGNAL_LANG_CHG, NULL);
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lang_set_core(i);
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}
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}
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#endif /*USE_LV_MULTI_LANG*/
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