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add lv_obj_fade_in/out

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This commit is contained in:
Gabor Kiss-Vamosi 2020-02-20 12:14:53 +01:00
parent 63ae4a6570
commit ecbf97178d
2 changed files with 76 additions and 15 deletions
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73
src/lv_core/lv_obj.c
View File

@ -57,6 +57,8 @@ typedef struct _lv_event_temp_data
/**********************
* STATIC PROTOTYPES
**********************/
static lv_design_res_t lv_obj_design(lv_obj_t * obj, const lv_area_t * clip_area, lv_design_mode_t mode);
static lv_res_t lv_obj_signal(lv_obj_t * obj, lv_signal_t sign, void * param);
static void refresh_children_position(lv_obj_t * obj, lv_coord_t x_diff, lv_coord_t y_diff);
static void report_style_mod_core(void * style_p, lv_obj_t * obj);
static void refresh_children_style(lv_obj_t * obj);
@ -67,8 +69,7 @@ static void obj_state_anim_cb(void * p, lv_anim_value_t value);
#endif
static void lv_event_mark_deleted(lv_obj_t * obj);
static void lv_obj_del_async_cb(void * obj);
static lv_design_res_t lv_obj_design(lv_obj_t * obj, const lv_area_t * clip_area, lv_design_mode_t mode);
static lv_res_t lv_obj_signal(lv_obj_t * obj, lv_signal_t sign, void * param);
static void opa_scale_anim(lv_obj_t * obj, lv_anim_value_t v);
/**********************
* STATIC VARIABLES
@ -2801,21 +2802,10 @@ lv_res_t lv_obj_handle_get_type_signal(lv_obj_type_t * buf, const char * name)
return LV_RES_OK;
}
/**********************
* STATIC FUNCTIONS
**********************/
static void lv_obj_del_async_cb(void * obj)
{
LV_ASSERT_OBJ(obj, LV_OBJX_NAME);
lv_obj_del(obj);
}
/**
* Initialize a rectangle descriptor from an object's styles
* @param obj pointer to an object
* @param type type of style. E.g. `LV_OBJ_STYLE_MAIN`, `LV_BTN_STYLE_REL` or `LV_PAGE_STYLE_SCRL`
* @param type type of style. E.g. `LV_OBJ_PART_MAIN`, `LV_BTN_STYLE_REL` or `LV_PAGE_STYLE_SCRL`
* @param draw_dsc the descriptor the initialize
* @note Only the relevant fields will be set.
* E.g. if `border width == 0` the other border properties won't be evaluated.
@ -3103,6 +3093,55 @@ lv_coord_t lv_obj_get_draw_rect_ext_pad_size(lv_obj_t * obj, uint8_t part)
return s;
}
/**
* Fade in (from transparent to fully cover) an object and all its children using an `opa_scale` animation.
* @param obj the object to fade in
* @param time duration of the animation [ms]
* @param delay wait before the animation starts [ms]
*/
void lv_obj_fade_in(lv_obj_t * obj, uint32_t time, uint32_t delay)
{
lv_anim_t a;
lv_anim_init(&a);
lv_anim_set_var(&a, obj);
lv_anim_set_values(&a, LV_OPA_TRANSP, LV_OPA_COVER);
lv_anim_set_exec_cb(&a, (lv_anim_exec_xcb_t)opa_scale_anim);
lv_anim_set_time(&a, time);
lv_anim_set_delay(&a, delay);
lv_anim_start(&a);
}
/**
* Fade out (from fully cover to transparent) an object and all its children using an `opa_scale` animation.
* @param obj the object to fade in
* @param time duration of the animation [ms]
* @param delay wait before the animation starts [ms]
*/
void lv_obj_fade_out(lv_obj_t * obj, uint32_t time, uint32_t delay)
{
lv_anim_t a;
lv_anim_init(&a);
lv_anim_set_var(&a, obj);
lv_anim_set_values(&a, LV_OPA_COVER, LV_OPA_TRANSP);
lv_anim_set_exec_cb(&a, (lv_anim_exec_xcb_t)opa_scale_anim);
lv_anim_set_time(&a, time);
lv_anim_set_delay(&a, delay);
lv_anim_start(&a);
}
/**********************
* STATIC FUNCTIONS
**********************/
static void lv_obj_del_async_cb(void * obj)
{
LV_ASSERT_OBJ(obj, LV_OBJX_NAME);
lv_obj_del(obj);
}
/**
* Handle the drawing related tasks of the base objects.
* @param obj pointer to an object
@ -3417,3 +3456,9 @@ static void lv_event_mark_deleted(lv_obj_t * obj)
}
}
static void opa_scale_anim(lv_obj_t * obj, lv_anim_value_t v)
{
lv_obj_set_style_opa_scale(obj, LV_OBJ_PART_MAIN, LV_STATE_NORMAL, v);
}

18
src/lv_core/lv_obj.h
View File

@ -1235,7 +1235,7 @@ lv_res_t lv_obj_handle_get_type_signal(lv_obj_type_t * buf, const char * name);
/**
* Initialize a rectangle descriptor from an object's styles
* @param obj pointer to an object
* @param type type of style. E.g. `LV_OBJ_STYLE_MAIN`, `LV_BTN_STYLE_REL` or `LV_PAGE_STYLE_SCRL`
* @param type type of style. E.g. `LV_OBJ_PART_MAIN`, `LV_BTN_STYLE_REL` or `LV_PAGE_STYLE_SCRL`
* @param draw_dsc the descriptor the initialize
* @note Only the relevant fields will be set.
* E.g. if `border width == 0` the other border properties won't be evaluated.
@ -1255,6 +1255,22 @@ void lv_obj_init_draw_line_dsc(lv_obj_t * obj, uint8_t part, lv_draw_line_dsc_t
*/
lv_coord_t lv_obj_get_draw_rect_ext_pad_size(lv_obj_t * obj, uint8_t part);
/**
* Fade in (from transparent to fully cover) an object and all its children using an `opa_scale` animation.
* @param obj the object to fade in
* @param time duration of the animation [ms]
* @param delay wait before the animation starts [ms]
*/
void lv_obj_fade_in(lv_obj_t * obj, uint32_t time, uint32_t delay);
/**
* Fade out (from fully cover to transparent) an object and all its children using an `opa_scale` animation.
* @param obj the object to fade in
* @param time duration of the animation [ms]
* @param delay wait before the animation starts [ms]
*/
void lv_obj_fade_out(lv_obj_t * obj, uint32_t time, uint32_t delay);
/**********************
* MACROS
**********************/