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hekate/bdk/libs/lvgl/lv_objx/lv_chart.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

263 lines
7.2 KiB
C

/**
* @file lv_chart.h
*
*/
#ifndef LV_CHART_H
#define LV_CHART_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_CHART != 0
#include "../lv_core/lv_obj.h"
#include "lv_line.h"
/*********************
* DEFINES
*********************/
#define LV_CHART_POINT_DEF (LV_COORD_MIN)
/**********************
* TYPEDEFS
**********************/
typedef struct
{
lv_coord_t * points;
lv_color_t color;
uint16_t start_point;
} lv_chart_series_t;
/*Data of chart */
typedef struct
{
/*No inherited ext*/ /*Ext. of ancestor*/
/*New data for this type */
lv_ll_t series_ll; /*Linked list for the data line pointers (stores lv_chart_dl_t)*/
lv_coord_t ymin; /*y min value (used to scale the data)*/
lv_coord_t ymax; /*y max value (used to scale the data)*/
uint8_t hdiv_cnt; /*Number of horizontal division lines*/
uint8_t vdiv_cnt; /*Number of vertical division lines*/
uint16_t point_cnt; /*Point number in a data line*/
uint8_t type :4; /*Line, column or point chart (from 'lv_chart_type_t')*/
struct {
lv_coord_t width; /*Line width or point radius*/
uint8_t num; /*Number of data lines in dl_ll*/
lv_opa_t opa; /*Opacity of data lines*/
lv_opa_t dark; /*Dark level of the point/column bottoms*/
} series;
} lv_chart_ext_t;
/*Chart types*/
enum
{
LV_CHART_TYPE_LINE = 0x01, /*Connect the points with lines*/
LV_CHART_TYPE_COLUMN = 0x02, /*Draw columns*/
LV_CHART_TYPE_POINT = 0x04, /*Draw circles on the points*/
LV_CHART_TYPE_VERTICAL_LINE = 0x08, /*Draw vertical lines on points (useful when chart width == point count)*/
};
typedef uint8_t lv_chart_type_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Create a chart background objects
* @param par pointer to an object, it will be the parent of the new chart background
* @param copy pointer to a chart background object, if not NULL then the new object will be copied from it
* @return pointer to the created chart background
*/
lv_obj_t * lv_chart_create(lv_obj_t * par, const lv_obj_t * copy);
/*======================
* Add/remove functions
*=====================*/
/**
* Allocate and add a data series to the chart
* @param chart pointer to a chart object
* @param color color of the data series
* @return pointer to the allocated data series
*/
lv_chart_series_t * lv_chart_add_series(lv_obj_t * chart, lv_color_t color);
/**
* Clear the point of a serie
* @param chart pointer to a chart object
* @param serie pointer to the chart's serie to clear
*/
void lv_chart_clear_serie(lv_obj_t * chart, lv_chart_series_t * serie);
/*=====================
* Setter functions
*====================*/
/**
* Set the number of horizontal and vertical division lines
* @param chart pointer to a graph background object
* @param hdiv number of horizontal division lines
* @param vdiv number of vertical division lines
*/
void lv_chart_set_div_line_count(lv_obj_t * chart, uint8_t hdiv, uint8_t vdiv);
/**
* Set the minimal and maximal y values
* @param chart pointer to a graph background object
* @param ymin y minimum value
* @param ymax y maximum value
*/
void lv_chart_set_range(lv_obj_t * chart, lv_coord_t ymin, lv_coord_t ymax);
/**
* Set a new type for a chart
* @param chart pointer to a chart object
* @param type new type of the chart (from 'lv_chart_type_t' enum)
*/
void lv_chart_set_type(lv_obj_t * chart, lv_chart_type_t type);
/**
* Set the number of points on a data line on a chart
* @param chart pointer r to chart object
* @param point_cnt new number of points on the data lines
*/
void lv_chart_set_point_count(lv_obj_t * chart, uint16_t point_cnt);
/**
* Set the opacity of the data series
* @param chart pointer to a chart object
* @param opa opacity of the data series
*/
void lv_chart_set_series_opa(lv_obj_t * chart, lv_opa_t opa);
/**
* Set the line width or point radius of the data series
* @param chart pointer to a chart object
* @param width the new width
*/
void lv_chart_set_series_width(lv_obj_t * chart, lv_coord_t width);
/**
* Set the dark effect on the bottom of the points or columns
* @param chart pointer to a chart object
* @param dark_eff dark effect level (LV_OPA_TRANSP to turn off)
*/
void lv_chart_set_series_darking(lv_obj_t * chart, lv_opa_t dark_eff);
/**
* Initialize all data points with a value
* @param chart pointer to chart object
* @param ser pointer to a data series on 'chart'
* @param y the new value for all points
*/
void lv_chart_init_points(lv_obj_t * chart, lv_chart_series_t * ser, lv_coord_t y);
/**
* Set the value s of points from an array
* @param chart pointer to chart object
* @param ser pointer to a data series on 'chart'
* @param y_array array of 'lv_coord_t' points (with 'points count' elements )
*/
void lv_chart_set_points(lv_obj_t * chart, lv_chart_series_t * ser, lv_coord_t * y_array);
/**
* Shift all data right and set the most right data on a data line
* @param chart pointer to chart object
* @param ser pointer to a data series on 'chart'
* @param y the new value of the most right data
*/
void lv_chart_set_next(lv_obj_t * chart, lv_chart_series_t * ser, lv_coord_t y);
/**
* Set the style of a chart
* @param chart pointer to a chart object
* @param style pointer to a style
*/
static inline void lv_chart_set_style(lv_obj_t *chart, lv_style_t *style)
{
lv_obj_set_style(chart, style);
}
/*=====================
* Getter functions
*====================*/
/**
* Get the type of a chart
* @param chart pointer to chart object
* @return type of the chart (from 'lv_chart_t' enum)
*/
lv_chart_type_t lv_chart_get_type(const lv_obj_t * chart);
/**
* Get the data point number per data line on chart
* @param chart pointer to chart object
* @return point number on each data line
*/
uint16_t lv_chart_get_point_cnt(const lv_obj_t * chart);
/**
* Get the opacity of the data series
* @param chart pointer to chart object
* @return the opacity of the data series
*/
lv_opa_t lv_chart_get_series_opa(const lv_obj_t * chart);
/**
* Get the data series width
* @param chart pointer to chart object
* @return the width the data series (lines or points)
*/
lv_coord_t lv_chart_get_series_width(const lv_obj_t * chart);
/**
* Get the dark effect level on the bottom of the points or columns
* @param chart pointer to chart object
* @return dark effect level (LV_OPA_TRANSP to turn off)
*/
lv_opa_t lv_chart_get_series_darking(const lv_obj_t * chart);
/**
* Get the style of an chart object
* @param chart pointer to an chart object
* @return pointer to the chart's style
*/
static inline lv_style_t* lv_chart_get_style(const lv_obj_t *chart)
{
return lv_obj_get_style(chart);
}
/*=====================
* Other functions
*====================*/
/**
* Refresh a chart if its data line has changed
* @param chart pointer to chart object
*/
void lv_chart_refresh(lv_obj_t * chart);
/**********************
* MACROS
**********************/
#endif /*USE_LV_CHART*/
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /*LV_CHART_H*/