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lv_label: lv_label_append_text added

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This commit is contained in:
Gabor
2017-02-06 08:52:59 +01:00
parent 13f75de6ee
commit 253fbe0ee5
2 changed files with 32 additions and 0 deletions
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26
lv_objx/lv_label.c
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@@ -236,6 +236,32 @@ void lv_label_set_text_static(lv_obj_t * label, const char * text)
lv_label_refr_text(label);
}
/**
* Append a text to the label. The label current label text can not be static.
* @param label pointer to label object
* @param text pointe rto the new text
*/
void lv_label_append_text(lv_obj_t * label, const char * text)
{
lv_label_ext_t * ext = lv_obj_get_ext(label);
/*Can not append to static text*/
if(ext->static_txt != 0) return;
lv_obj_inv(label);
/*Allocate space for the new text*/
uint32_t old_len = strlen(ext->txt);
uint32_t app_len = strlen(text);
uint32_t new_len = app_len + old_len;
ext->txt = dm_realloc(ext->txt, new_len + 1);
memcpy(ext->txt + old_len, text, app_len);
ext->txt[new_len] = '\0';
lv_label_refr_text(label);
}
/**
* Set the behavior of the label with longer text then the object size
* @param label pointer to a label object

6
lv_objx/lv_label.h
View File

@@ -111,6 +111,12 @@ void lv_label_set_text_array(lv_obj_t * label, const char * array, uint16_t size
*/
void lv_label_set_text_static(lv_obj_t * label, const char * text);
/**
* Append a text to the label. The label current label text can not be static.
* @param label pointer to label object
* @param text pointe rto the new text
*/
void lv_label_append_text(lv_obj_t * label, const char * text);
/**
* Set the behavior of the label with longer text then the object size
* @param label pointer to a label object