Merge pull request #1653 from mibcat/tabview-set-tab-name

widget tableview: add new function lv_tabview_set_tab_name() to change a tab name during runtime

CHANGELOG.md

@@ -25,6 +25,7 @@ Available in the `dev` branch
 - Add `lv_theme_set_base()` to allow easy extension of built-in (or any) themes
 - Add `lv_obj_align_x()` and `lv_obj_align_y()` functions
 - Add `lv_obj_align_origo_x()` and `lv_obj_align_origo_y()` functions
+- Add `lv_tabview_set_tab_name()` function - used to change a tab's name
 
 ### Bugfixes
 - `tileview` fix navigation when not screen sized

src/lv_widgets/lv_tabview.c

@@ -448,6 +448,36 @@ void lv_tabview_set_tab_act(lv_obj_t * tabview, uint16_t id, lv_anim_enable_t an
     lv_btnmatrix_set_btn_ctrl(ext->btns, ext->tab_cur, LV_BTNMATRIX_CTRL_CHECK_STATE);
 }
 
+/**
+ * Set the name of a tab.
+ * @param tabview pointer to Tab view object
+ * @param id index of the tab the name should be set
+ * @param name new tab name
+ */
+void lv_tabview_set_tab_name(lv_obj_t *tabview, uint16_t id, char *name)
+{
+  LV_ASSERT_OBJ(tabview, LV_OBJX_NAME);
+
+  /* get tabview's ext pointer which contains the tab name pointer list */
+  lv_tabview_ext_t *ext = lv_obj_get_ext_attr(tabview);
+
+  /* check for valid tab index */
+  if (ext->tab_cnt > id)
+  {
+    /* reallocate memory for new tab name (use reallocate due to mostly the size didn't change much) */
+    char *str = lv_mem_realloc((void *)ext->tab_name_ptr[id], strlen(name) + 1);
+    LV_ASSERT_MEM(str);
+
+    /* store new tab name at allocated memory */
+    strcpy(str, name);
+    /* update pointer  */
+    ext->tab_name_ptr[id] = str;
+
+    /* force redrawing of the tab headers */
+    lv_obj_invalidate(ext->btns);
+  }
+}
+
 /**
  * Set the animation time of tab view when a new tab is loaded
  * @param tabview pointer to Tab view object

src/lv_widgets/lv_tabview.h

@@ -119,6 +119,14 @@ void lv_tabview_clean_tab(lv_obj_t * tab);
  */
 void lv_tabview_set_tab_act(lv_obj_t * tabview, uint16_t id, lv_anim_enable_t anim);
 
+/**
+ * Set the name of a tab.
+ * @param tabview pointer to Tab view object
+ * @param id index of the tab the name should be set
+ * @param name new tab name
+ */
+void lv_tabview_set_tab_name(lv_obj_t * tabview, uint16_t id, char * name);
+
 /**
  * Set the animation time of tab view when a new tab is loaded
  * @param tabview pointer to Tab view object