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TegraExplorer/bdk/libs/lvgl/lv_objx/lv_slider.h
SuchMemeManySkill d6c4204027 Start of rewrite
Based on lockpick_rcm 1.9.0
2020-12-23 17:39:22 +01:00

202 lines
4.9 KiB
C

/**
* @file lv_slider.h
*
*/
#ifndef LV_SLIDER_H
#define LV_SLIDER_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#ifdef LV_CONF_INCLUDE_SIMPLE
#include "lv_conf.h"
#else
#include "../../lv_conf.h"
#endif
#if USE_LV_SLIDER != 0
/*Testing of dependencies*/
#if USE_LV_BAR == 0
#error "lv_slider: lv_bar is required. Enable it in lv_conf.h (USE_LV_BAR 1) "
#endif
#include "../lv_core/lv_obj.h"
#include "lv_bar.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/*Data of slider*/
typedef struct
{
lv_bar_ext_t bar; /*Ext. of ancestor*/
/*New data for this type */
lv_action_t action; /*Function to call when a new value is set*/
lv_style_t *style_knob; /*Style of the knob*/
int16_t drag_value; /*Store a temporal value during press until release (Handled by the library)*/
uint8_t knob_in :1; /*1: Draw the knob inside the bar*/
} lv_slider_ext_t;
/*Built-in styles of slider*/
enum
{
LV_SLIDER_STYLE_BG,
LV_SLIDER_STYLE_INDIC,
LV_SLIDER_STYLE_KNOB,
};
typedef uint8_t lv_slider_style_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Create a slider objects
* @param par pointer to an object, it will be the parent of the new slider
* @param copy pointer to a slider object, if not NULL then the new object will be copied from it
* @return pointer to the created slider
*/
lv_obj_t * lv_slider_create(lv_obj_t * par, const lv_obj_t * copy);
/*=====================
* Setter functions
*====================*/
/**
* Set a new value on the slider
* @param slider pointer to a slider object
* @param value new value
*/
static inline void lv_slider_set_value(lv_obj_t * slider, int16_t value)
{
lv_bar_set_value(slider, value);
}
/**
* Set a new value with animation on a slider
* @param slider pointer to a slider object
* @param value new value
* @param anim_time animation time in milliseconds
*/
static inline void lv_slider_set_value_anim(lv_obj_t * slider, int16_t value, uint16_t anim_time)
{
lv_bar_set_value_anim(slider, value, anim_time);
}
/**
* Set minimum and the maximum values of a bar
* @param slider pointer to the slider object
* @param min minimum value
* @param max maximum value
*/
static inline void lv_slider_set_range(lv_obj_t *slider, int16_t min, int16_t max)
{
lv_bar_set_range(slider, min, max);
}
/**
* Set a function which will be called when a new value is set on the slider
* @param slider pointer to slider object
* @param action a callback function
*/
void lv_slider_set_action(lv_obj_t * slider, lv_action_t action);
/**
* Set the 'knob in' attribute of a slider
* @param slider pointer to slider object
* @param in true: the knob is drawn always in the slider;
* false: the knob can be out on the edges
*/
void lv_slider_set_knob_in(lv_obj_t * slider, bool in);
/**
* Set a style of a slider
* @param slider pointer to a slider object
* @param type which style should be set
* @param style pointer to a style
*/
void lv_slider_set_style(lv_obj_t *slider, lv_slider_style_t type, lv_style_t *style);
/*=====================
* Getter functions
*====================*/
/**
* Get the value of a slider
* @param slider pointer to a slider object
* @return the value of the slider
*/
int16_t lv_slider_get_value(const lv_obj_t * slider);
/**
* Get the minimum value of a slider
* @param slider pointer to a slider object
* @return the minimum value of the slider
*/
static inline int16_t lv_slider_get_min_value(const lv_obj_t * slider)
{
return lv_bar_get_min_value(slider);
}
/**
* Get the maximum value of a slider
* @param slider pointer to a slider object
* @return the maximum value of the slider
*/
static inline int16_t lv_slider_get_max_value(const lv_obj_t * slider)
{
return lv_bar_get_max_value(slider);
}
/**
* Get the slider action function
* @param slider pointer to slider object
* @return the callback function
*/
lv_action_t lv_slider_get_action(const lv_obj_t * slider);
/**
* Give the slider is being dragged or not
* @param slider pointer to a slider object
* @return true: drag in progress false: not dragged
*/
bool lv_slider_is_dragged(const lv_obj_t * slider);
/**
* Get the 'knob in' attribute of a slider
* @param slider pointer to slider object
* @return true: the knob is drawn always in the slider;
* false: the knob can be out on the edges
*/
bool lv_slider_get_knob_in(const lv_obj_t * slider);
/**
* Get a style of a slider
* @param slider pointer to a slider object
* @param type which style should be get
* @return style pointer to a style
*/
lv_style_t * lv_slider_get_style(const lv_obj_t *slider, lv_slider_style_t type);
/**********************
* MACROS
**********************/
#endif /*USE_LV_SLIDER*/
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /*LV_SLIDER_H*/