From 2c9695afb4ed6597ae54806c5eb2a287925343f8 Mon Sep 17 00:00:00 2001
From: pete-pjb <petebone00@gmail.com>
Date: Mon, 13 Jun 2022 12:56:37 +0100
Subject: [PATCH] feat(tabview) add API to rename tab.

https://github.com/lvgl/lvgl/issues/3407#issue-1265916615
---
 docs/widgets/extra/tabview.md          |  4 ++++
 src/extra/widgets/tabview/lv_tabview.c | 14 ++++++++++++++
 src/extra/widgets/tabview/lv_tabview.h |  2 ++
 3 files changed, 20 insertions(+)

diff --git a/docs/widgets/extra/tabview.md b/docs/widgets/extra/tabview.md
index fcb79491c..1677aec11 100644
--- a/docs/widgets/extra/tabview.md
+++ b/docs/widgets/extra/tabview.md
@@ -28,6 +28,10 @@ There are no special parts on the Tab view but the `lv_obj` and `lv_btnnmatrix`
 
 New tabs can be added with `lv_tabview_add_tab(tabview, "Tab name")`. This will return a pointer to an [lv_obj](/widgets/obj) object where the tab's content can be created.
 
+### Rename tabs
+
+A tab can be renamed with `lv_tabview_rename_tab( tabview, tab_id, "New Name" )`.
+
 ### Change tab
 
 To select a new tab you can:
diff --git a/src/extra/widgets/tabview/lv_tabview.c b/src/extra/widgets/tabview/lv_tabview.c
index 90ac0e7dc..bb7a1e1fd 100755
--- a/src/extra/widgets/tabview/lv_tabview.c
+++ b/src/extra/widgets/tabview/lv_tabview.c
@@ -121,6 +121,20 @@ lv_obj_t * lv_tabview_add_tab(lv_obj_t * obj, const char * name)
     return page;
 }
 
+void lv_tabview_rename_tab( lv_obj_t *obj, uint32_t id, const char *new_name )
+{
+    LV_ASSERT_OBJ(obj, MY_CLASS);
+    lv_tabview_t * tabview = (lv_tabview_t *)obj;
+
+    if(id >= tabview->tab_cnt) return;
+    if( tabview->tab_pos & LV_DIR_HOR ) id *= 2;
+
+    lv_mem_free( tabview->map[id] );
+    tabview->map[id] = lv_mem_alloc(strlen( new_name )+1 );
+    strcpy( tabview->map[id], new_name );
+    lv_obj_invalidate(obj);
+}
+
 void lv_tabview_set_act(lv_obj_t * obj, uint32_t id, lv_anim_enable_t anim_en)
 {
     LV_ASSERT_OBJ(obj, MY_CLASS);
diff --git a/src/extra/widgets/tabview/lv_tabview.h b/src/extra/widgets/tabview/lv_tabview.h
index a01c6b9ba..023dbd1d9 100644
--- a/src/extra/widgets/tabview/lv_tabview.h
+++ b/src/extra/widgets/tabview/lv_tabview.h
@@ -42,6 +42,8 @@ lv_obj_t * lv_tabview_create(lv_obj_t * parent, lv_dir_t tab_pos, lv_coord_t tab
 
 lv_obj_t * lv_tabview_add_tab(lv_obj_t * tv, const char * name);
 
+void lv_tabview_rename_tab( lv_obj_t *obj, uint32_t tab_id, const char *new_name );
+
 lv_obj_t * lv_tabview_get_content(lv_obj_t * tv);
 
 lv_obj_t * lv_tabview_get_tab_btns(lv_obj_t * tv);