245 lines
7.1 KiB
C
245 lines
7.1 KiB
C
|
/**
|
||
|
|
* @file lv_led.c
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*********************
|
||
|
|
* INCLUDES
|
||
|
|
*********************/
|
||
|
|
#include "lv_led.h"
|
||
|
|
#if USE_LV_LED != 0
|
||
|
|
|
||
|
|
#include "../lv_themes/lv_theme.h"
|
||
|
|
#include "../lv_draw/lv_draw.h"
|
||
|
|
|
||
|
|
/*********************
|
||
|
|
* DEFINES
|
||
|
|
*********************/
|
||
|
|
#define LV_LED_WIDTH_DEF (LV_DPI / 3)
|
||
|
|
#define LV_LED_HEIGHT_DEF (LV_DPI / 3)
|
||
|
|
#define LV_LED_BRIGHT_OFF 100
|
||
|
|
#define LV_LED_BRIGHT_ON 255
|
||
|
|
|
||
|
|
/**********************
|
||
|
|
* TYPEDEFS
|
||
|
|
**********************/
|
||
|
|
|
||
|
|
/**********************
|
||
|
|
* STATIC PROTOTYPES
|
||
|
|
**********************/
|
||
|
|
static bool lv_led_design(lv_obj_t * led, const lv_area_t * mask, lv_design_mode_t mode);
|
||
|
|
static lv_res_t lv_led_signal(lv_obj_t * led, lv_signal_t sign, void * param);
|
||
|
|
|
||
|
|
/**********************
|
||
|
|
* STATIC VARIABLES
|
||
|
|
**********************/
|
||
|
|
static lv_design_func_t ancestor_design_f;
|
||
|
|
static lv_signal_func_t ancestor_signal;
|
||
|
|
|
||
|
|
/**********************
|
||
|
|
* MACROS
|
||
|
|
**********************/
|
||
|
|
|
||
|
|
/**********************
|
||
|
|
* GLOBAL FUNCTIONS
|
||
|
|
**********************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create a led objects
|
||
|
|
* @param par pointer to an object, it will be the parent of the new led
|
||
|
|
* @param copy pointer to a led object, if not NULL then the new object will be copied from it
|
||
|
|
* @return pointer to the created led
|
||
|
|
*/
|
||
|
|
lv_obj_t * lv_led_create(lv_obj_t * par, const lv_obj_t * copy)
|
||
|
|
{
|
||
|
|
LV_LOG_TRACE("led create started");
|
||
|
|
|
||
|
|
/*Create the ancestor basic object*/
|
||
|
|
lv_obj_t * new_led = lv_obj_create(par, copy);
|
||
|
|
lv_mem_assert(new_led);
|
||
|
|
if(new_led == NULL) return NULL;
|
||
|
|
|
||
|
|
if(ancestor_signal == NULL) ancestor_signal = lv_obj_get_signal_func(new_led);
|
||
|
|
if(ancestor_design_f == NULL) ancestor_design_f = lv_obj_get_design_func(new_led);
|
||
|
|
|
||
|
|
/*Allocate the object type specific extended data*/
|
||
|
|
lv_led_ext_t * ext = lv_obj_allocate_ext_attr(new_led, sizeof(lv_led_ext_t));
|
||
|
|
lv_mem_assert(ext);
|
||
|
|
if(ext == NULL) return NULL;
|
||
|
|
|
||
|
|
ext->bright = LV_LED_BRIGHT_ON;
|
||
|
|
|
||
|
|
lv_obj_set_signal_func(new_led, lv_led_signal);
|
||
|
|
lv_obj_set_design_func(new_led, lv_led_design);
|
||
|
|
|
||
|
|
/*Init the new led object*/
|
||
|
|
if(copy == NULL) {
|
||
|
|
lv_obj_set_size(new_led, LV_LED_WIDTH_DEF, LV_LED_HEIGHT_DEF);
|
||
|
|
|
||
|
|
/*Set the default styles*/
|
||
|
|
lv_theme_t * th = lv_theme_get_current();
|
||
|
|
if(th) {
|
||
|
|
lv_led_set_style(new_led, th->led);
|
||
|
|
} else {
|
||
|
|
lv_led_set_style(new_led, &lv_style_pretty_color);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/*Copy an existing object*/
|
||
|
|
else {
|
||
|
|
lv_led_ext_t * copy_ext = lv_obj_get_ext_attr(copy);
|
||
|
|
ext->bright = copy_ext->bright;
|
||
|
|
|
||
|
|
/*Refresh the style with new signal function*/
|
||
|
|
lv_obj_refresh_style(new_led);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
LV_LOG_INFO("led created");
|
||
|
|
|
||
|
|
return new_led;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*=====================
|
||
|
|
* Setter functions
|
||
|
|
*====================*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the brightness of a LED object
|
||
|
|
* @param led pointer to a LED object
|
||
|
|
* @param bright 0 (max. dark) ... 255 (max. light)
|
||
|
|
*/
|
||
|
|
void lv_led_set_bright(lv_obj_t * led, uint8_t bright)
|
||
|
|
{
|
||
|
|
/*Set the brightness*/
|
||
|
|
lv_led_ext_t * ext = lv_obj_get_ext_attr(led);
|
||
|
|
if(ext->bright == bright) return;
|
||
|
|
|
||
|
|
ext->bright = bright;
|
||
|
|
|
||
|
|
/*Invalidate the object there fore it will be redrawn*/
|
||
|
|
lv_obj_invalidate(led);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Light on a LED
|
||
|
|
* @param led pointer to a LED object
|
||
|
|
*/
|
||
|
|
void lv_led_on(lv_obj_t * led)
|
||
|
|
{
|
||
|
|
lv_led_set_bright(led, LV_LED_BRIGHT_ON);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Light off a LED
|
||
|
|
* @param led pointer to a LED object
|
||
|
|
*/
|
||
|
|
void lv_led_off(lv_obj_t * led)
|
||
|
|
{
|
||
|
|
lv_led_set_bright(led, LV_LED_BRIGHT_OFF);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Toggle the state of a LED
|
||
|
|
* @param led pointer to a LED object
|
||
|
|
*/
|
||
|
|
void lv_led_toggle(lv_obj_t * led)
|
||
|
|
{
|
||
|
|
uint8_t bright = lv_led_get_bright(led);
|
||
|
|
if(bright > (LV_LED_BRIGHT_OFF + LV_LED_BRIGHT_ON) >> 1) lv_led_off(led);
|
||
|
|
else lv_led_on(led);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*=====================
|
||
|
|
* Getter functions
|
||
|
|
*====================*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the brightness of a LEd object
|
||
|
|
* @param led pointer to LED object
|
||
|
|
* @return bright 0 (max. dark) ... 255 (max. light)
|
||
|
|
*/
|
||
|
|
uint8_t lv_led_get_bright(const lv_obj_t * led)
|
||
|
|
{
|
||
|
|
lv_led_ext_t * ext = lv_obj_get_ext_attr(led);
|
||
|
|
return ext->bright;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**********************
|
||
|
|
* STATIC FUNCTIONS
|
||
|
|
**********************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Handle the drawing related tasks of the leds
|
||
|
|
* @param led pointer to an object
|
||
|
|
* @param mask the object will be drawn only in this area
|
||
|
|
* @param mode LV_DESIGN_COVER_CHK: only check if the object fully covers the 'mask_p' area
|
||
|
|
* (return 'true' if yes)
|
||
|
|
* LV_DESIGN_DRAW: draw the object (always return 'true')
|
||
|
|
* LV_DESIGN_DRAW_POST: drawing after every children are drawn
|
||
|
|
* @param return true/false, depends on 'mode'
|
||
|
|
*/
|
||
|
|
static bool lv_led_design(lv_obj_t * led, const lv_area_t * mask, lv_design_mode_t mode)
|
||
|
|
{
|
||
|
|
if(mode == LV_DESIGN_COVER_CHK) {
|
||
|
|
/*Return false if the object is not covers the mask area*/
|
||
|
|
return ancestor_design_f(led, mask, mode);
|
||
|
|
} else if(mode == LV_DESIGN_DRAW_MAIN) {
|
||
|
|
/*Make darker colors in a temporary style according to the brightness*/
|
||
|
|
lv_led_ext_t * ext = lv_obj_get_ext_attr(led);
|
||
|
|
lv_style_t * style = lv_obj_get_style(led);
|
||
|
|
|
||
|
|
/* Store the real pointer because of 'lv_group'
|
||
|
|
* If the object is in focus 'lv_obj_get_style()' will give a pointer to tmp style
|
||
|
|
* and to the real object style. It is important because of style change tricks below*/
|
||
|
|
lv_style_t * style_ori_p = led->style_p;
|
||
|
|
|
||
|
|
/*Create a temporal style*/
|
||
|
|
lv_style_t leds_tmp;
|
||
|
|
memcpy(&leds_tmp, style, sizeof(leds_tmp));
|
||
|
|
|
||
|
|
/*Mix. the color with black proportionally with brightness*/
|
||
|
|
leds_tmp.body.main_color = lv_color_mix(leds_tmp.body.main_color, LV_COLOR_BLACK, ext->bright);
|
||
|
|
leds_tmp.body.grad_color = lv_color_mix(leds_tmp.body.grad_color, LV_COLOR_BLACK, ext->bright);
|
||
|
|
leds_tmp.body.border.color = lv_color_mix(leds_tmp.body.border.color, LV_COLOR_BLACK, ext->bright);
|
||
|
|
|
||
|
|
/*Set the current swidth according to brightness proportionally between LV_LED_BRIGHT_OFF and LV_LED_BRIGHT_ON*/
|
||
|
|
uint16_t bright_tmp = ext->bright;
|
||
|
|
leds_tmp.body.shadow.width = ((bright_tmp - LV_LED_BRIGHT_OFF) * style->body.shadow.width) / (LV_LED_BRIGHT_ON - LV_LED_BRIGHT_OFF);
|
||
|
|
|
||
|
|
led->style_p = &leds_tmp;
|
||
|
|
ancestor_design_f(led, mask, mode);
|
||
|
|
led->style_p = style_ori_p; /*Restore the ORIGINAL style pointer*/
|
||
|
|
}
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Signal function of the led
|
||
|
|
* @param led pointer to a led object
|
||
|
|
* @param sign a signal type from lv_signal_t enum
|
||
|
|
* @param param pointer to a signal specific variable
|
||
|
|
* @return LV_RES_OK: the object is not deleted in the function; LV_RES_INV: the object is deleted
|
||
|
|
*/
|
||
|
|
static lv_res_t lv_led_signal(lv_obj_t * led, lv_signal_t sign, void * param)
|
||
|
|
{
|
||
|
|
lv_res_t res;
|
||
|
|
|
||
|
|
/* Include the ancient signal function */
|
||
|
|
res = ancestor_signal(led, sign, param);
|
||
|
|
if(res != LV_RES_OK) return res;
|
||
|
|
|
||
|
|
|
||
|
|
if(sign == LV_SIGNAL_GET_TYPE) {
|
||
|
|
lv_obj_type_t * buf = param;
|
||
|
|
uint8_t i;
|
||
|
|
for(i = 0; i < LV_MAX_ANCESTOR_NUM - 1; i++) { /*Find the last set data*/
|
||
|
|
if(buf->type[i] == NULL) break;
|
||
|
|
}
|
||
|
|
buf->type[i] = "lv_led";
|
||
|
|
}
|
||
|
|
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
#endif
|