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feat(obj) add lv_obj_swap() function (#2461)

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* proposal for lv_obj_swap() function

* review issues applied

* review changes for comments
This commit is contained in:
Karijn Wessing
2021-08-18 11:32:10 +02:00
committed by GitHub
parent 36ddbd0756
commit 9a1f7f2fcb
8 changed files with 153 additions and 1 deletions
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24
src/core/lv_obj_tree.c
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@@ -235,6 +235,30 @@ void lv_obj_move_background(lv_obj_t * obj)
lv_obj_invalidate(parent);
}
void lv_obj_swap(lv_obj_t * obj1, lv_obj_t * obj2)
{
LV_ASSERT_OBJ(obj1, MY_CLASS);
LV_ASSERT_OBJ(obj2, MY_CLASS);
lv_obj_t* parent = lv_obj_get_parent(obj1);
lv_obj_t* parent2 = lv_obj_get_parent(obj2);
uint_fast32_t index1 = lv_obj_get_child_id(obj1);
uint_fast32_t index2 = lv_obj_get_child_id(obj2);
parent->spec_attr->children[index1] = obj2;
parent2->spec_attr->children[index2] = obj1;
lv_event_send(parent, LV_EVENT_CHILD_CHANGED, obj2);
lv_event_send(parent2, LV_EVENT_CHILD_CHANGED, obj1);
lv_obj_invalidate(parent);
if( parent != parent2)
{
lv_obj_invalidate(parent2);
}
}
lv_obj_t * lv_obj_get_screen(const lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);