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feat(flex): add LV_FLEX_PLACE_STRETCH to support stretching items in cross direction

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This commit is contained in:
Gabor Kiss-Vamosi 2020-11-03 14:14:21 +01:00
parent d12af050fa
commit 92c23bab9a
2 changed files with 16 additions and 7 deletions
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22
src/lv_core/lv_flex.c
View File

@ -277,6 +277,7 @@ static void children_repos(lv_obj_t * cont, lv_obj_t * item_first, lv_obj_t * it
lv_coord_t(*obj_get_main_size)(const lv_obj_t *) = (row ? lv_obj_get_width_margin : lv_obj_get_height_margin);
lv_coord_t(*obj_get_cross_size)(const lv_obj_t *) = (!row ? lv_obj_get_width_margin : lv_obj_get_height_margin);
void (*area_set_main_size)(lv_area_t *, lv_coord_t) = (row ? lv_area_set_width : lv_area_set_height);
void (*area_set_cross_size)(lv_area_t *, lv_coord_t) = (!row ? lv_area_set_width : lv_area_set_height);
lv_coord_t (*area_get_main_size)(const lv_area_t *) = (!row ? lv_area_get_width : lv_area_get_height);
lv_style_int_t (*get_margin_start)(const lv_obj_t *, uint8_t part) = (row ? lv_obj_get_style_margin_left : lv_obj_get_style_margin_top);
lv_style_int_t (*get_margin_end)(const lv_obj_t *, uint8_t part) = (row ? lv_obj_get_style_margin_right : lv_obj_get_style_margin_bottom);
@ -300,16 +301,23 @@ static void children_repos(lv_obj_t * cont, lv_obj_t * item_first, lv_obj_t * it
}
lv_coord_t main_size = (row ? item->w_set : item->h_set);
if(_LV_FLEX_GET_GROW(main_size)) {
lv_coord_t s = _LV_FLEX_GET_GROW(main_size) * grow_unit;
s -= get_margin_start(item, LV_OBJ_PART_MAIN) + get_margin_end(item, LV_OBJ_PART_MAIN);
if(s != area_get_main_size(&item->coords)) {
lv_area_t old_coords;
lv_area_copy(&old_coords, &item->coords);
lv_obj_invalidate(item);
if(_LV_FLEX_GET_GROW(main_size) || LV_COORD_GET_FLEX(main_set) == LV_FLEX_PLACE_STRETCH) {
lv_area_t old_coords;
lv_area_copy(&old_coords, &item->coords);
if(_LV_FLEX_GET_GROW(main_size)) {
lv_coord_t s = _LV_FLEX_GET_GROW(main_size) * grow_unit;
s -= get_margin_start(item, LV_OBJ_PART_MAIN) + get_margin_end(item, LV_OBJ_PART_MAIN);
area_set_main_size(&item->coords, s);
}
if(LV_COORD_GET_FLEX(main_set) == LV_FLEX_PLACE_STRETCH) {
area_set_cross_size(&item->coords, track_size);
}
if(lv_area_get_height(&old_coords) != area_get_main_size(&item->coords)) {
lv_obj_invalidate(item);
item->signal_cb(item, LV_SIGNAL_COORD_CHG, &old_coords);
lv_obj_invalidate(item);
}
}

1
src/lv_core/lv_flex.h
View File

@ -39,6 +39,7 @@ typedef enum {
LV_FLEX_PLACE_START,
LV_FLEX_PLACE_END,
LV_FLEX_PLACE_CENTER,
LV_FLEX_PLACE_STRETCH,
LV_FLEX_PLACE_SPACE_EVENLY,
LV_FLEX_PLACE_SPACE_AROUND,
LV_FLEX_PLACE_SPACE_BETWEEN,