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https://github.com/lvgl/lvgl.git
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146 lines
3.2 KiB
C
146 lines
3.2 KiB
C
/**
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* @file lv_arc.h
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*
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*/
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#ifndef LV_ARC_H
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#define LV_ARC_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*********************
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* INCLUDES
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*********************/
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#include "../lv_conf_internal.h"
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#if LV_USE_ARC != 0
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#include "../lv_core/lv_obj.h"
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/*********************
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* DEFINES
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*********************/
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/**********************
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* TYPEDEFS
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**********************/
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/*Data of arc*/
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typedef struct {
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/*New data for this type */
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lv_coord_t arc_angle_start;
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lv_coord_t arc_angle_end;
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lv_coord_t bg_angle_start;
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lv_coord_t bg_angle_end;
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lv_style_list_t style_arc;
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} lv_arc_ext_t;
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/*Parts of the arc*/
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enum {
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LV_ARC_PART_BG = LV_OBJ_PART_MAIN,
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LV_ARC_PART_INDIC,
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_LV_ARC_PART_VIRTUAL_LAST,
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_LV_ARC_PART_REAL_LAST = _LV_OBJ_PART_REAL_LAST,
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};
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typedef uint8_t lv_arc_part_t;
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/**********************
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* GLOBAL PROTOTYPES
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**********************/
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/**
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* Create a arc objects
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* @param par pointer to an object, it will be the parent of the new arc
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* @param copy pointer to a arc object, if not NULL then the new object will be copied from it
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* @return pointer to the created arc
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*/
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lv_obj_t * lv_arc_create(lv_obj_t * par, const lv_obj_t * copy);
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/*======================
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* Add/remove functions
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*=====================*/
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/*=====================
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* Setter functions
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*====================*/
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/**
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* Set the start angle of an arc. 0 deg: right, 90 bottom, etc.
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* @param arc pointer to an arc object
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* @param start the start angle
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*/
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void lv_arc_set_start_angle(lv_obj_t * arc, int16_t start);
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/**
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* Set the start angle of an arc. 0 deg: right, 90 bottom, etc.
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* @param arc pointer to an arc object
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* @param end the end angle
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*/
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void lv_arc_set_end_angle(lv_obj_t * arc, int16_t end);
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/**
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* Set the start and end angles
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* @param arc pointer to an arc object
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* @param start the start angle
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* @param end the end angle
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*/
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void lv_arc_set_angles(lv_obj_t * arc, int16_t start, int16_t end);
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/**
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* Set the start angle of an arc background. 0 deg: right, 90 bottom, etc.
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* @param arc pointer to an arc object
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* @param start the start angle
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*/
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void lv_arc_set_bg_start_angle(lv_obj_t * arc, int16_t start);
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/**
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* Set the start angle of an arc background. 0 deg: right, 90 bottom etc.
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* @param arc pointer to an arc object
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* @param end the end angle
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*/
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void lv_arc_set_bg_end_angle(lv_obj_t * arc, int16_t end);
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/**
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* Set the start and end angles of the arc background
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* @param arc pointer to an arc object
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* @param start the start angle
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* @param end the end angle
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*/
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void lv_arc_set_bg_angles(lv_obj_t * arc, int16_t start, int16_t end);
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/*=====================
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* Getter functions
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*====================*/
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/**
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* Get the start angle of an arc.
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* @param arc pointer to an arc object
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* @return the start angle [0..360]
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*/
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uint16_t lv_arc_get_angle_start(lv_obj_t * arc);
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/**
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* Get the end angle of an arc.
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* @param arc pointer to an arc object
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* @return the end angle [0..360]
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*/
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uint16_t lv_arc_get_angle_end(lv_obj_t * arc);
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/*=====================
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* Other functions
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*====================*/
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/**********************
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* MACROS
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**********************/
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#endif /*LV_USE_ARC*/
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /*LV_ARC_H*/
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