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/**
* @file lv_cb.h
*
*/
#ifndef LV_CB_H
#define LV_CB_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#ifdef LV_CONF_INCLUDE_SIMPLE
#include "lv_conf.h"
#else
#include "../../../lv_conf.h"
#endif
#if LV_USE_CB != 0
/*Testing of dependencies*/
#if LV_USE_BTN == 0
#error "lv_cb: lv_btn is required. Enable it in lv_conf.h (LV_USE_BTN 1) "
#endif
#if LV_USE_LABEL == 0
#error "lv_cb: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL 1) "
#endif
#include "../lv_core/lv_obj.h"
#include "lv_btn.h"
#include "lv_label.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/*Data of check box*/
typedef struct
{
lv_btn_ext_t bg_btn; /*Ext. of ancestor*/
/*New data for this type */
lv_obj_t * bullet; /*Pointer to button*/
lv_obj_t * label; /*Pointer to label*/
} lv_cb_ext_t;
/** Checkbox styles. */
enum {
LV_CB_STYLE_BG, /**< Style of object background. */
LV_CB_STYLE_BOX_REL, /**< Style of box (released). */
LV_CB_STYLE_BOX_PR, /**< Style of box (pressed). */
LV_CB_STYLE_BOX_TGL_REL, /**< Style of box (released but checked). */
LV_CB_STYLE_BOX_TGL_PR, /**< Style of box (pressed and checked). */
LV_CB_STYLE_BOX_INA, /**< Style of disabled box */
};
typedef uint8_t lv_cb_style_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Create a check box objects
* @param par pointer to an object, it will be the parent of the new check box
* @param copy pointer to a check box object, if not NULL then the new object will be copied from it
* @return pointer to the created check box
*/
lv_obj_t * lv_cb_create(lv_obj_t * par, const lv_obj_t * copy);
/*=====================
* Setter functions
*====================*/
/**
* Set the text of a check box. `txt` will be copied and may be deallocated
* after this function returns.
* @param cb pointer to a check box
* @param txt the text of the check box. NULL to refresh with the current text.
*/
void lv_cb_set_text(lv_obj_t * cb, const char * txt);
/**
* Set the text of a check box. `txt` must not be deallocated during the life
* of this checkbox.
* @param cb pointer to a check box
* @param txt the text of the check box. NULL to refresh with the current text.
*/
void lv_cb_set_static_text(lv_obj_t * cb, const char * txt);
/**
* Set the state of the check box
* @param cb pointer to a check box object
* @param checked true: make the check box checked; false: make it unchecked
*/
static inline void lv_cb_set_checked(lv_obj_t * cb, bool checked)
{
lv_btn_set_state(cb, checked ? LV_BTN_STATE_TGL_REL : LV_BTN_STATE_REL);
}
/**
* Make the check box inactive (disabled)
* @param cb pointer to a check box object
*/
static inline void lv_cb_set_inactive(lv_obj_t * cb)
{
lv_btn_set_state(cb, LV_BTN_STATE_INA);
}
/**
* Set a style of a check box
* @param cb pointer to check box object
* @param type which style should be set
* @param style pointer to a style
* */
void lv_cb_set_style(lv_obj_t * cb, lv_cb_style_t type, const lv_style_t * style);
/*=====================
* Getter functions
*====================*/
/**
* Get the text of a check box
* @param cb pointer to check box object
* @return pointer to the text of the check box
*/
const char * lv_cb_get_text(const lv_obj_t * cb);
/**
* Get the current state of the check box
* @param cb pointer to a check box object
* @return true: checked; false: not checked
*/
static inline bool lv_cb_is_checked(const lv_obj_t * cb)
{
return lv_btn_get_state(cb) == LV_BTN_STATE_REL ? false : true;
}
/**
* Get whether the check box is inactive or not.
* @param cb pointer to a check box object
* @return true: inactive; false: not inactive
*/
static inline bool lv_cb_is_inactive(const lv_obj_t * cb)
{
return lv_btn_get_state(cb) == LV_BTN_STATE_INA ? true :false;
}
/**
* Get a style of a button
* @param cb pointer to check box object
* @param type which style should be get
* @return style pointer to the style
* */
const lv_style_t * lv_cb_get_style(const lv_obj_t * cb, lv_cb_style_t type);
/**********************
* MACROS
**********************/
#endif /*LV_USE_CB*/
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /*LV_CB_H*/
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