lvgl/lv_objx/lv_bar.h
2017-11-10 15:01:40 +01:00

145 lines
3.2 KiB
C

/**
* @file lv_bar.h
*
*/
#ifndef LV_BAR_H
#define LV_BAR_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "lv_conf.h"
#if USE_LV_BAR != 0
#include "../lv_obj/lv_obj.h"
#include "lv_cont.h"
#include "lv_btn.h"
#include "lv_label.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/*Data of bar*/
typedef struct
{
/*No inherited ext*/ /*Ext. of ancestor*/
/*New data for this type */
int16_t cur_value; /*Current value of the bar*/
int16_t min_value; /*Minimum value of the bar*/
int16_t max_value; /*Maximum value of the bar*/
lv_style_t *style_inicator; /*Style of the indicator*/
}lv_bar_ext_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Create a bar objects
* @param par pointer to an object, it will be the parent of the new bar
* @param copy pointer to a bar object, if not NULL then the new object will be copied from it
* @return pointer to the created bar
*/
lv_obj_t * lv_bar_create(lv_obj_t * par, lv_obj_t * copy);
/*=====================
* Setter functions
*====================*/
/**
* Set a new value on the bar
* @param bar pointer to a bar object
* @param value new value
*/
void lv_bar_set_value(lv_obj_t * bar, int16_t value);
/**
* Set a new value with animation on the bar
* @param bar pointer to a bar object
* @param value new value
* @param anim_time animation time in milliseconds
*/
void lv_bar_set_value_anim(lv_obj_t * bar, int16_t value, uint16_t anim_time);
/**
* Set minimum and the maximum values of a bar
* @param bar pointer to the bar object
* @param min minimum value
* @param max maximum value
*/
void lv_bar_set_range(lv_obj_t * bar, int16_t min, int16_t max);
/**
* Set the styles of a bar
* @param bar pointer to a bar object
* @param bg pointer to the background's style (NULL to leave unchanged)
* @param indic pointer to the indicator's style (NULL to leave unchanged)
*/
void lv_bar_set_style(lv_obj_t * bar, lv_style_t * bg, lv_style_t * indic);
/*=====================
* Getter functions
*====================*/
/**
* Get the value of a bar
* @param bar pointer to a bar object
* @return the value of the bar
*/
int16_t lv_bar_get_value(lv_obj_t * bar);
/**
* Get the minimum value of a bar
* @param bar pointer to a bar object
* @return the minimum value of the bar
*/
int16_t lv_bar_get_min_value(lv_obj_t * bar);
/**
* Get the maximum value of a bar
* @param bar pointer to a bar object
* @return the maximum value of the bar
*/
int16_t lv_bar_get_max_value(lv_obj_t * bar);
/**
* Get the style of bar background
* @param bar pointer to a bar object
* @return pointer to the bar's background style
*/
static inline lv_style_t * lv_bar_get_style_bg(lv_obj_t *bar)
{
return lv_obj_get_style(bar);
}
/**
* Get the style of bar indicator
* @param bar pointer to a bar object
* @return pointer to the bar indicator style
*/
lv_style_t * lv_bar_get_style_indicator(lv_obj_t * bar);
/**********************
* MACROS
**********************/
#endif /*USE_LV_BAR*/
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /*LV_BAR_H*/