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/**
* @file lv_draw_arc.h
*
*/
#ifndef LV_DRAW_ARC_H
#define LV_DRAW_ARC_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "../lv_conf_internal.h"
#include "../misc/lv_color.h"
#include "../misc/lv_area.h"
#include "../misc/lv_style.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
typedef struct {
lv_draw_dsc_base_t base;
lv_color_t color;
int32_t width;
lv_value_precise_t start_angle;
lv_value_precise_t end_angle;
lv_point_t center;
uint16_t radius;
const void * img_src;
lv_opa_t opa;
uint8_t rounded : 1;
} lv_draw_arc_dsc_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Initialize an arc draw descriptor.
* @param dsc pointer to a draw descriptor
*/
void lv_draw_arc_dsc_init(lv_draw_arc_dsc_t * dsc);
/**
* Try to get an arc draw descriptor from a draw task.
* @param task draw task
* @return the task's draw descriptor or NULL if the task is not of type LV_DRAW_TASK_TYPE_ARC
*/
lv_draw_arc_dsc_t * lv_draw_task_get_arc_dsc(lv_draw_task_t * task);
/**
* Create an arc draw task.
* @param layer pointer to a layer
* @param dsc pointer to an initialized draw descriptor variable
*/
void lv_draw_arc(lv_layer_t * layer, const lv_draw_arc_dsc_t * dsc);
/**
* Get an area the should be invalidated when the arcs angle changed between start_angle and end_ange
* @param x the x coordinate of the center of the arc
* @param y the y coordinate of the center of the arc
* @param radius the radius of the arc
* @param start_angle the start angle of the arc (0 deg on the bottom, 90 deg on the right)
* @param end_angle the end angle of the arc
* @param w width of the arc
* @param rounded true: the arc is rounded
* @param area store the area to invalidate here
*/
void lv_draw_arc_get_area(int32_t x, int32_t y, uint16_t radius, lv_value_precise_t start_angle,
lv_value_precise_t end_angle,
int32_t w, bool rounded, lv_area_t * area);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_DRAW_ARC_H*/
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