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feat(event) add LV_EVENT_LAYOUT_CHANGED and fix tabview's tab position on resize

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This commit is contained in:
Gabor Kiss-Vamosi
2021-05-20 07:40:48 +02:00
parent b06a1f35f3
commit a63ab1eef1
5 changed files with 26 additions and 15 deletions
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8
examples/widgets/obj/lv_example_obj_1.c
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@@ -14,9 +14,9 @@ void lv_example_obj_1(void)
lv_style_set_shadow_spread(&style_shadow, 5);
lv_style_set_shadow_color(&style_shadow, lv_palette_main(LV_PALETTE_BLUE));
lv_obj_t * obj3;
obj3 = lv_obj_create(lv_scr_act());
lv_obj_add_style(obj3, &style_shadow, 0);
lv_obj_align(obj3, LV_ALIGN_CENTER, 60, 30);
lv_obj_t * obj2;
obj2 = lv_obj_create(lv_scr_act());
lv_obj_add_style(obj2, &style_shadow, 0);
lv_obj_align(obj2, LV_ALIGN_CENTER, 60, 30);
}
#endif

3
src/core/lv_event.h
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@@ -73,8 +73,9 @@ typedef enum {
/** Other events*/
LV_EVENT_DELETE, /**< Object is being deleted*/
LV_EVENT_CHILD_CHANGED, /**< Child was removed/added*/
LV_EVENT_SIZE_CHANGED, /**< Object coordinates/size have changed*/
LV_EVENT_SIZE_CHANGED, /**< Object coordinates/size have changed*/
LV_EVENT_STYLE_CHANGED, /**< Object's style has changed*/
LV_EVENT_LAYOUT_CHANGED, /**< The children position has changed due to a layout recalculation*/
LV_EVENT_GET_SELF_SIZE, /**< Get the internal size of a widget*/
_LV_EVENT_LAST /** Number of default events*/

2
src/extra/layouts/flex/lv_flex.c
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@@ -215,6 +215,8 @@ static void flex_update(lv_obj_t * cont, void * user_data)
lv_obj_refr_size(cont);
}
lv_event_send(cont, LV_EVENT_LAYOUT_CHANGED, NULL);
LV_TRACE_LAYOUT("finished");
}

2
src/extra/layouts/grid/lv_grid.c
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@@ -182,6 +182,8 @@ static void grid_update(lv_obj_t * cont, void * user_data)
lv_obj_refr_size(cont);
}
lv_event_send(cont, LV_EVENT_LAYOUT_CHANGED, NULL);
LV_TRACE_LAYOUT("finished");
}

26
src/extra/widgets/tabview/lv_tabview.c
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@@ -193,7 +193,7 @@ static void lv_tabview_constructor(const lv_obj_class_t * class_p, lv_obj_t * ob
lv_obj_add_event_cb(btnm, btns_value_changed_event_cb, LV_EVENT_VALUE_CHANGED, NULL);
lv_obj_add_flag(btnm, LV_OBJ_FLAG_EVENT_BUBBLE);
lv_obj_add_event_cb(cont, cont_scroll_end_event_cb, LV_EVENT_SCROLL_END, NULL);
lv_obj_add_event_cb(cont, cont_scroll_end_event_cb, LV_EVENT_ALL, NULL);
lv_obj_set_scrollbar_mode(cont, LV_SCROLLBAR_MODE_OFF);
switch(tabview->tab_pos) {
@@ -247,7 +247,7 @@ static void lv_tabview_event(const lv_obj_class_t * class_p, lv_event_t * e)
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * target = lv_event_get_target(e);
if(code == LV_EVENT_SIZE_CHANGED || e == LV_EVENT_CHILD_CHANGED) {
if(code == LV_EVENT_SIZE_CHANGED) {
lv_tabview_set_act(target, lv_tabview_get_tab_act(target), LV_ANIM_OFF);
}
}
@@ -263,19 +263,25 @@ static void btns_value_changed_event_cb(lv_event_t * e)
lv_event_send(tv, LV_EVENT_VALUE_CHANGED, NULL);
}
static void cont_scroll_end_event_cb(lv_event_t * e)
{
lv_obj_t * cont = lv_event_get_target(e);
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * tv = lv_obj_get_parent(cont);
if(code == LV_EVENT_LAYOUT_CHANGED) {
lv_tabview_set_act(tv, lv_tabview_get_tab_act(tv), LV_ANIM_OFF);
}
else if(code == LV_EVENT_SCROLL_END) {
lv_point_t p;
lv_obj_get_scroll_end(cont, &p);
lv_point_t p;
lv_obj_get_scroll_end(cont, &p);
lv_coord_t w = lv_obj_get_content_width(cont);
lv_coord_t t = (p.x + w/ 2) / w;
if(t < 0) t = 0;
lv_tabview_set_act(tv, t, LV_ANIM_ON);
lv_event_send(tv, LV_EVENT_VALUE_CHANGED, NULL);
lv_coord_t w = lv_obj_get_content_width(cont);
lv_coord_t t = (p.x + w/ 2) / w;
if(t < 0) t = 0;
lv_tabview_set_act(tv, t, LV_ANIM_ON);
lv_event_send(tv, LV_EVENT_VALUE_CHANGED, NULL);
}
}
#endif /*LV_USE_TABVIEW*/