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/**
* @file lv_spinner.c
*
*/
/*********************
* INCLUDES
*********************/
#include "../../lvgl.h"
#if LV_USE_SPINNER
/*********************
* DEFINES
*********************/
#define DEF_ARC_ANGLE 200
#define DEF_TIME 1000
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void lv_spinner_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj);
static void arc_anim_start_angle(void * obj, int32_t v);
static void arc_anim_end_angle(void * obj, int32_t v);
/**********************
* STATIC VARIABLES
**********************/
const lv_obj_class_t lv_spinner_class = {
.base_class = &lv_arc_class,
.constructor_cb = lv_spinner_constructor,
.name = "spinner",
};
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
lv_obj_t * lv_spinner_create(lv_obj_t * parent)
{
lv_obj_t * obj = lv_obj_class_create_obj(&lv_spinner_class, parent);
lv_obj_class_init_obj(obj);
return obj;
}
void lv_spinner_set_anim_params(lv_obj_t * obj, uint32_t t, uint32_t angle)
{
/*Delete the current animation*/
lv_anim_delete(obj, NULL);
lv_anim_t a;
lv_anim_init(&a);
lv_anim_set_var(&a, obj);
lv_anim_set_exec_cb(&a, arc_anim_end_angle);
lv_anim_set_repeat_count(&a, LV_ANIM_REPEAT_INFINITE);
lv_anim_set_duration(&a, t);
lv_anim_set_values(&a, angle, 360 + angle);
lv_anim_start(&a);
lv_anim_set_path_cb(&a, lv_anim_path_custom_bezier3);
lv_anim_set_bezier3_param(&a, LV_BEZIER_VAL_FLOAT(0.42), LV_BEZIER_VAL_FLOAT(0.58),
LV_BEZIER_VAL_FLOAT(0), LV_BEZIER_VAL_FLOAT(1));
lv_anim_set_values(&a, 0, 360);
lv_anim_set_exec_cb(&a, arc_anim_start_angle);
lv_anim_start(&a);
lv_arc_set_bg_angles(obj, 0, 360);
lv_arc_set_rotation(obj, 270);
}
/**********************
* STATIC FUNCTIONS
**********************/
static void lv_spinner_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
{
LV_TRACE_OBJ_CREATE("begin");
LV_UNUSED(class_p);
lv_obj_remove_flag(obj, LV_OBJ_FLAG_CLICKABLE);
lv_spinner_set_anim_params(obj, DEF_TIME, DEF_ARC_ANGLE);
}
static void arc_anim_start_angle(void * obj, int32_t v)
{
lv_arc_set_start_angle(obj, (uint32_t) v);
}
static void arc_anim_end_angle(void * obj, int32_t v)
{
lv_arc_set_end_angle(obj, (uint32_t) v);
}
#endif /*LV_USE_SPINNER*/
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