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/**
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 * @file lv_circ.h
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 *
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 */
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#ifndef LV_CIRC_H
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#define LV_CIRC_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 <stddef.h>
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#include "lv_area.h"
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#include <utils/types.h>
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/*********************
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 *      DEFINES
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 *********************/
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#define LV_CIRC_OCT1_X(p) (p.x)
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#define LV_CIRC_OCT1_Y(p) (p.y)
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#define LV_CIRC_OCT2_X(p) (p.y)
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#define LV_CIRC_OCT2_Y(p) (p.x)
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#define LV_CIRC_OCT3_X(p) (-p.y)
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#define LV_CIRC_OCT3_Y(p) (p.x)
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#define LV_CIRC_OCT4_X(p) (-p.x)
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#define LV_CIRC_OCT4_Y(p) (p.y)
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#define LV_CIRC_OCT5_X(p) (-p.x)
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#define LV_CIRC_OCT5_Y(p) (-p.y)
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#define LV_CIRC_OCT6_X(p) (-p.y)
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#define LV_CIRC_OCT6_Y(p) (-p.x)
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#define LV_CIRC_OCT7_X(p) (p.y)
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#define LV_CIRC_OCT7_Y(p) (-p.x)
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#define LV_CIRC_OCT8_X(p) (p.x)
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#define LV_CIRC_OCT8_Y(p) (-p.y)
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/**********************
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 *      TYPEDEFS
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 **********************/
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/**********************
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 * GLOBAL PROTOTYPES
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 **********************/
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/**
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 * Initialize the circle drawing
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 * @param c pointer to a point. The coordinates will be calculated here
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 * @param tmp point to a variable. It will store temporary data
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 * @param radius radius of the circle
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 */
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void lv_circ_init(lv_point_t * c, lv_coord_t * tmp, lv_coord_t radius);
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/**
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 * Test the circle drawing is ready or not
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 * @param c same as in circ_init
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 * @return true if the circle is not ready yet
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 */
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bool lv_circ_cont(lv_point_t * c);
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/**
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 * Get the next point from the circle
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 * @param c same as in circ_init. The next point stored here.
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 * @param tmp same as in circ_init.
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 */
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void lv_circ_next(lv_point_t * c, lv_coord_t * tmp);
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/**********************
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 *      MACROS
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 **********************/
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif
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