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/**
* @file lv_line.h
*
*/
#ifndef LV_LINE_H
#define LV_LINE_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "../../core/lv_obj.h"
#if LV_USE_LINE != 0
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/*Data of line*/
typedef struct {
lv_obj_t obj;
const lv_point_precise_t * point_array; /**< Pointer to an array with the points of the line*/
uint32_t point_num; /**< Number of points in 'point_array'*/
uint32_t y_inv : 1; /**< 1: y == 0 will be on the bottom*/
} lv_line_t;
LV_ATTRIBUTE_EXTERN_DATA extern const lv_obj_class_t lv_line_class;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Create a line object
* @param parent pointer to an object, it will be the parent of the new line
* @return pointer to the created line
*/
lv_obj_t * lv_line_create(lv_obj_t * parent);
/*=====================
* Setter functions
*====================*/
/**
* Set an array of points. The line object will connect these points.
* @param obj pointer to a line object
* @param points an array of points. Only the address is saved, so the array needs to be alive while the line exists
* @param point_num number of points in 'point_a'
*/
void lv_line_set_points(lv_obj_t * obj, const lv_point_precise_t points[], uint32_t point_num);
/**
* Enable (or disable) the y coordinate inversion.
* If enabled then y will be subtracted from the height of the object,
* therefore the y = 0 coordinate will be on the bottom.
* @param obj pointer to a line object
* @param en true: enable the y inversion, false:disable the y inversion
*/
void lv_line_set_y_invert(lv_obj_t * obj, bool en);
/*=====================
* Getter functions
*====================*/
/**
* Get the y inversion attribute
* @param obj pointer to a line object
* @return true: y inversion is enabled, false: disabled
*/
bool lv_line_get_y_invert(const lv_obj_t * obj);
/**********************
* MACROS
**********************/
#endif /*LV_USE_LINE*/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_LINE_H*/
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