1 /**
2  * @file lv_cb.h
3  *
4  */
5 
6 #ifndef LV_CHECKBOX_H
7 #define LV_CHECKBOX_H
8 
9 #ifdef __cplusplus
10 extern "C" {
11 #endif
12 
13 /*********************
14  *      INCLUDES
15  *********************/
16 #include "../lv_conf_internal.h"
17 #include "../core/lv_obj.h"
18 
19 #if LV_USE_CHECKBOX != 0
20 
21 /*********************
22  *      DEFINES
23  *********************/
24 
25 /**********************
26  *      TYPEDEFS
27  **********************/
28 
29 typedef struct {
30     lv_obj_t obj;
31     const char * txt;
32     uint32_t static_txt : 1;
33 } lv_checkbox_t;
34 
35 extern const lv_obj_class_t lv_checkbox_class;
36 
37 /**
38  * `type` field in `lv_obj_draw_part_dsc_t` if `class_p = lv_checkbox_class`
39  * Used in `LV_EVENT_DRAW_PART_BEGIN` and `LV_EVENT_DRAW_PART_END`
40  */
41 typedef enum {
42     LV_CHECKBOX_DRAW_PART_BOX,    /**< The tick box*/
43 } lv_checkbox_draw_part_type_t;
44 
45 /**********************
46  * GLOBAL PROTOTYPES
47  **********************/
48 
49 /**
50  * Create a check box object
51  * @param parent    pointer to an object, it will be the parent of the new button
52  * @return          pointer to the created check box
53  */
54 lv_obj_t * lv_checkbox_create(lv_obj_t * parent);
55 
56 /*=====================
57  * Setter functions
58  *====================*/
59 
60 /**
61  * Set the text of a check box. `txt` will be copied and may be deallocated
62  * after this function returns.
63  * @param cb    pointer to a check box
64  * @param txt   the text of the check box. NULL to refresh with the current text.
65  */
66 void lv_checkbox_set_text(lv_obj_t * obj, const char * txt);
67 
68 /**
69  * Set the text of a check box. `txt` must not be deallocated during the life
70  * of this checkbox.
71  * @param cb    pointer to a check box
72  * @param txt   the text of the check box.
73  */
74 void lv_checkbox_set_text_static(lv_obj_t * obj, const char * txt);
75 
76 /*=====================
77  * Getter functions
78  *====================*/
79 
80 /**
81  * Get the text of a check box
82  * @param cb    pointer to check box object
83  * @return      pointer to the text of the check box
84  */
85 const char * lv_checkbox_get_text(const lv_obj_t * obj);
86 
87 /**********************
88  *      MACROS
89  **********************/
90 
91 #endif /*LV_USE_CHECKBOX*/
92 
93 #ifdef __cplusplus
94 } /*extern "C"*/
95 #endif
96 
97 #endif /*LV_CHECKBOX_H*/
98