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add multi language support system + lv_label_set_text_multi

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Gabor Kiss-Vamosi
2019-01-16 09:57:07 +01:00
parent 6d449962ff
commit d0f42c26cc
5 changed files with 145 additions and 5 deletions
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45
lv_objx/lv_label.c
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@@ -175,6 +175,7 @@ void lv_label_set_text(lv_obj_t * label, const char * text)
lv_label_refr_text(label);
}
/**
* Set a new text for a label from a character array. The array don't has to be '\0' terminated.
* Memory will be allocated to store the array by the label.
@@ -232,6 +233,27 @@ void lv_label_set_static_text(lv_obj_t * label, const char * text)
lv_label_refr_text(label);
}
/**
* Set the text for the multiple languages
* @param label pointer to a label object
* @param texts '\0' terminated character strings like `const char * txts[] = {"dog", "hund"}`.
* The number of elements must be `USE_LV_MULTI_LANG`.
* Only the pointer is saved so the variable must be global, static, or dynamically allocated.
* NULL to disable multiple language for the label.
*/
void lv_label_set_text_multi(lv_obj_t * label, const char ** texts)
{
#if USE_LV_MULTI_LANG
lv_label_ext_t * ext = lv_obj_get_ext_attr(label);
ext->multi_lang_texts = texts;
/*Apply the new language*/
label->signal_func(label, LV_SIGNAL_LANG_CHG, NULL);
#else
LV_LOG_WARN("lv_label_set_text_multi: multiple languages are not enabled. See lv_conf.h USE_LV_MULTI_LANG ")
#endif
}
/**
* Set the behavior of the label with longer text then the object size
* @param label pointer to a label object
@@ -277,7 +299,6 @@ void lv_label_set_align(lv_obj_t * label, lv_label_align_t align)
ext->align = align;
lv_obj_invalidate(label); /*Enough to invalidate because alignment is only drawing related (lv_refr_label_text() not required)*/
}
/**
@@ -345,6 +366,22 @@ char * lv_label_get_text(const lv_obj_t * label)
return ext->text;
}
/**
* Get the array which stores the texts for multiple languages
* @param label pointer to a label object
* @return pointer to the array storing the texts. NULL if not specified.
*/
const char ** lv_label_get_text_multi(lv_obj_t * label)
{
#if USE_LV_MULTI_LANG
lv_label_ext_t * ext = lv_obj_get_ext_attr(label);
return ext->multi_lang_texts;
#else
LV_LOG_WARN("lv_label_get_text_multi: multiple languages are not enabled. See lv_conf.h USE_LV_MULTI_LANG ")
return NULL;
#endif
}
/**
* Get the long mode of a label
* @param label pointer to a label object
@@ -720,6 +757,12 @@ static lv_res_t lv_label_signal(lv_obj_t * label, lv_signal_t sign, void * param
label->ext_size = LV_MATH_MAX(label->ext_size, style->body.padding.hor);
label->ext_size = LV_MATH_MAX(label->ext_size, style->body.padding.ver);
}
} else if(sign == LV_SIGNAL_LANG_CHG) {
if(ext->multi_lang_texts) {
uint8_t lang = lv_lang_act();
lv_label_set_text(label, ext->multi_lang_texts[lang]);
}
} else if(sign == LV_SIGNAL_GET_TYPE) {
lv_obj_type_t * buf = param;
uint8_t i;