acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
lv_line.h (2274B)
      1 /**
      2  * @file lv_line.h
      3  *
      4  */
      5 
      6 #ifndef LV_LINE_H
      7 #define LV_LINE_H
      8 
      9 #ifdef __cplusplus
     10 extern "C" {
     11 #endif
     12 
     13 /*********************
     14  *      INCLUDES
     15  *********************/
     16 #include "../lv_conf_internal.h"
     17 
     18 #if LV_USE_LINE != 0
     19 
     20 #include "../core/lv_obj.h"
     21 
     22 /*********************
     23  *      DEFINES
     24  *********************/
     25 
     26 /**********************
     27  *      TYPEDEFS
     28  **********************/
     29 
     30 /*Data of line*/
     31 typedef struct {
     32     lv_obj_t obj;
     33     const lv_point_t * point_array;     /**< Pointer to an array with the points of the line*/
     34     uint16_t point_num;                 /**< Number of points in 'point_array'*/
     35     uint8_t y_inv : 1;                  /**< 1: y == 0 will be on the bottom*/
     36 } lv_line_t;
     37 
     38 extern const lv_obj_class_t lv_line_class;
     39 
     40 /**********************
     41  * GLOBAL PROTOTYPES
     42  **********************/
     43 
     44 /**
     45  * Create a line object
     46  * @param parent pointer to an object, it will be the parent of the new line
     47  * @return pointer to the created line
     48  */
     49 lv_obj_t * lv_line_create(lv_obj_t * parent);
     50 
     51 /*=====================
     52  * Setter functions
     53  *====================*/
     54 
     55 /**
     56  * Set an array of points. The line object will connect these points.
     57  * @param obj           pointer to a line object
     58  * @param points        an array of points. Only the address is saved, so the array needs to be alive while the line exists
     59  * @param point_num     number of points in 'point_a'
     60  */
     61 void lv_line_set_points(lv_obj_t * obj, const lv_point_t points[], uint16_t point_num);
     62 
     63 /**
     64  * Enable (or disable) the y coordinate inversion.
     65  * If enabled then y will be subtracted from the height of the object,
     66  * therefore the y = 0 coordinate will be on the bottom.
     67  * @param obj       pointer to a line object
     68  * @param en        true: enable the y inversion, false:disable the y inversion
     69  */
     70 void lv_line_set_y_invert(lv_obj_t * obj, bool en);
     71 
     72 /*=====================
     73  * Getter functions
     74  *====================*/
     75 
     76 /**
     77  * Get the y inversion attribute
     78  * @param obj       pointer to a line object
     79  * @return          true: y inversion is enabled, false: disabled
     80  */
     81 bool lv_line_get_y_invert(const lv_obj_t * obj);
     82 
     83 /**********************
     84  *      MACROS
     85  **********************/
     86 
     87 #endif /*LV_USE_LINE*/
     88 
     89 #ifdef __cplusplus
     90 } /*extern "C"*/
     91 #endif
     92 
     93 #endif /*LV_LINE_H*/