/** * @file lv_led.h * */ #ifndef LV_LED_H #define LV_LED_H #ifdef __cplusplus extern "C" { #endif /********************* * INCLUDES *********************/ #include "lvgl.h" #if LV_USE_LED /********************* * DEFINES *********************/ /** Brightness when the LED if OFF */ #ifndef LV_LED_BRIGHT_MIN # define LV_LED_BRIGHT_MIN 80 #endif /** Brightness when the LED if ON */ #ifndef LV_LED_BRIGHT_MAX # define LV_LED_BRIGHT_MAX 255 #endif /********************** * TYPEDEFS **********************/ /*Data of led*/ typedef struct { lv_obj_t obj; lv_color_t color; uint8_t bright; /**< Current brightness of the LED (0..255)*/ } lv_led_t; extern const lv_obj_class_t lv_led_class; /** * `type` field in `lv_obj_draw_part_dsc_t` if `class_p = lv_led_class` * Used in `LV_EVENT_DRAW_PART_BEGIN` and `LV_EVENT_DRAW_PART_END` */ typedef enum { LV_LED_DRAW_PART_RECTANGLE, /**< The main rectangle*/ } lv_led_draw_part_type_t; /********************** * GLOBAL PROTOTYPES **********************/ /** * Create a led object * @param parent pointer to an object, it will be the parent of the new led * @return pointer to the created led */ lv_obj_t * lv_led_create(lv_obj_t * parent); /** * Set the color of the LED * @param led pointer to a LED object * @param color the color of the LED */ void lv_led_set_color(lv_obj_t * led, lv_color_t color); /** * Set the brightness of a LED object * @param led pointer to a LED object * @param bright LV_LED_BRIGHT_MIN (max. dark) ... LV_LED_BRIGHT_MAX (max. light) */ void lv_led_set_brightness(lv_obj_t * led, uint8_t bright); /** * Light on a LED * @param led pointer to a LED object */ void lv_led_on(lv_obj_t * led); /** * Light off a LED * @param led pointer to a LED object */ void lv_led_off(lv_obj_t * led); /** * Toggle the state of a LED * @param led pointer to a LED object */ void lv_led_toggle(lv_obj_t * led); /** * 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_brightness(const lv_obj_t * obj); /********************** * MACROS **********************/ #endif /*LV_USE_LED*/ #ifdef __cplusplus } /*extern "C"*/ #endif #endif /*LV_LED_H*/