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hekate/bdk/libs/lvgl/lv_objx/lv_slider.h
CTCaer 185526d134 Introducing Bootloader Development Kit (BDK)
BDK will allow developers to use the full collection of drivers,
with limited editing, if any, for making payloads for Nintendo Switch.

Using a single source for everything will also help decoupling
Switch specific code and easily port it to other Tegra X1/X1+ platforms.
And maybe even to lower targets.

Everything is now centrilized into bdk folder.
Every module or project can utilize it by simply including it.

This is just the start and it will continue to improve.
2020-06-14 15:25:21 +03:00

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*/