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/*********************
* INCLUDES
*********************/
#include "lv_analog_time.h"
#include "lv_pointer.h"
#include <time.h>
#if LV_USE_ANALOG_TIME
/*********************
* DEFINES
*********************/
#define MY_CLASS &lv_analog_time_class
#define UNIT_ONE_SECOND (1000)
#define UNIT_ONE_MINUTE (60 * UNIT_ONE_SECOND)
#define UNIT_ONE_HOUR (60 * UNIT_ONE_MINUTE)
#define UNIT_ONE_DAY (24 * UNIT_ONE_HOUR)
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void lv_analog_time_constructor(const lv_obj_class_t* class_p,
lv_obj_t* obj);
static void lv_analog_time_destructor(const lv_obj_class_t* class_p,
lv_obj_t* obj);
static void update_time(lv_obj_t* obj);
static void timer_cb(lv_timer_t* timer);
static lv_obj_t* create_hand(lv_obj_t* obj, const char* img);
/**********************
* STATIC VARIABLES
**********************/
const lv_obj_class_t lv_analog_time_class = {
.constructor_cb = lv_analog_time_constructor,
.destructor_cb = lv_analog_time_destructor,
.instance_size = sizeof(lv_analog_time_t),
.base_class = &lv_obj_class,
};
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
lv_obj_t* lv_analog_time_create(lv_obj_t* parent)
{
lv_obj_t* obj = lv_obj_class_create_obj(MY_CLASS, parent);
lv_obj_class_init_obj(obj);
return obj;
}
void lv_analog_time_set_hands(lv_obj_t* obj, const void* hour,
const void* minute, const void* second)
{
lv_analog_time_t* analog = (lv_analog_time_t*)obj;
uint32_t period = UNIT_ONE_MINUTE; /* default */
/* remove hand if it's null */
if (analog->second) {
lv_obj_del(analog->second);
analog->second = NULL;
}
if (analog->minute) {
lv_obj_del(analog->minute);
analog->minute = NULL;
}
if (analog->hour) {
lv_obj_del(analog->hour);
analog->hour = NULL;
}
/* create hand if not null */
if (hour) {
analog->hour = create_hand(obj, hour);
/* for hour, we use minute as unit*/
lv_pointer_set_range(analog->hour, 0, 24 * 60, 0, 3600 * 2);
/* update period should be faster than 1minute(default) */
}
if (minute) {
analog->minute = create_hand(obj, minute);
/* for minute, update per second */
lv_pointer_set_range(analog->minute, 0, 60 * 60, 0, 3600);
/* update period should be faster than 1second */
if (period > 1 * UNIT_ONE_SECOND) {
period = UNIT_ONE_SECOND;
}
}
if (second) {
analog->second = create_hand(obj, second);
/* update per second */
lv_pointer_set_range(analog->second, 0, 60 * UNIT_ONE_SECOND, 0, 3600);
/* update period should be faster than 1second */
if (period > 1 * UNIT_ONE_SECOND) {
period = UNIT_ONE_SECOND;
}
}
if (period < analog->period)
analog->period = period;
if (analog->hour || analog->minute || analog->second) {
lv_timer_resume(analog->timer);
} else {
/* no more needed */
lv_timer_pause(analog->timer);
}
update_time(obj);
}
void lv_analog_time_pause(lv_obj_t* obj)
{
lv_analog_time_t* analog = (lv_analog_time_t*)obj;
lv_timer_pause(analog->timer);
}
void lv_analog_time_resume(lv_obj_t* obj)
{
lv_analog_time_t* analog = (lv_analog_time_t*)obj;
lv_timer_resume(analog->timer);
update_time(obj);
}
void lv_analog_time_set_period(lv_obj_t* obj, uint32_t period)
{
lv_analog_time_t* analog = (lv_analog_time_t*)obj;
analog->period = period;
lv_timer_set_period(analog->timer, period);
}
/**********************
* STATIC FUNCTIONS
**********************/
static void lv_analog_time_constructor(const lv_obj_class_t* class_p,
lv_obj_t* obj)
{
LV_UNUSED(class_p);
LV_TRACE_OBJ_CREATE("begin");
lv_analog_time_t* analog = (lv_analog_time_t*)obj;
analog->period = 60 * 60 * 1000; /* default to 1Hour = 60min*60sec*1000ms*/
lv_obj_add_flag(lv_obj_get_parent(obj), LV_OBJ_FLAG_OVERFLOW_VISIBLE);
/* hands pivot is place to 0, 0 */
lv_obj_remove_style_all(obj);
lv_obj_set_size(obj, 0, 0);
analog->timer = lv_timer_create(timer_cb, UNIT_ONE_MINUTE, obj);
lv_timer_pause(analog->timer);
LV_TRACE_OBJ_CREATE("finished");
}
static void lv_analog_time_destructor(const lv_obj_class_t* class_p,
lv_obj_t* obj)
{
lv_analog_time_t* analog = (lv_analog_time_t*)obj;
lv_timer_del(analog->timer);
}
static lv_obj_t* create_hand(lv_obj_t* obj, const char* img)
{
lv_obj_t* hand;
hand = lv_pointer_create(obj);
lv_img_set_src(hand, img);
lv_point_t pivot;
lv_img_get_pivot(hand, &pivot);
/* we position the hand using image's center */
lv_obj_set_pos(hand, -pivot.x, -pivot.y);
return hand;
}
static void update_time(lv_obj_t* obj)
{
int value;
struct timespec ts;
struct tm* time;
int ret;
ret = clock_gettime(CLOCK_REALTIME, &ts);
if (ret != 0) {
LV_LOG_ERROR("get real time failed");
return;
}
time = localtime(&ts.tv_sec);
if (time == NULL) {
LV_LOG_ERROR("get local time failed");
return;
}
lv_analog_time_t* analog = (lv_analog_time_t*)obj;
value = time->tm_sec * 1000;
if (analog->period < UNIT_ONE_SECOND) {
/* sub-second update mode */
value += ts.tv_nsec / 1000000; /* add ms part */
}
if (analog->second)
lv_pointer_set_value(analog->second, value);
if (analog->minute)
lv_pointer_set_value(analog->minute, time->tm_min * 60 + time->tm_sec);
if (analog->hour)
lv_pointer_set_value(analog->hour, time->tm_hour * 60 + time->tm_min);
}
static void timer_cb(lv_timer_t* t)
{
/* timeup */
update_time(t->user_data);
}
/* examples */
#if 0
void lv_analog_time_example(void)
{
lv_obj_t* scr = lv_scr_act();
lv_obj_t* analog = lv_analog_time_create(scr);
lv_obj_center(analog);
lv_analog_time_set_hands(analog, "/data/hand-second.png", "/data/hand-second.png", "/data/hand-second.png");
lv_analog_time_set_period(analog, 60);
}
#endif
#endif
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