lv_font.h File Reference

#include "../../../lv_conf.h"
#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#include "lv_symbol_def.h"

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Data Structures
struct	lv_font_glyph_dsc_t
struct	_lv_font_struct

Macros
#define	LV_FONT_WIDTH_FRACT_DIGIT   4
#define	LV_FONT_KERN_POSITIVE   0
#define	LV_FONT_KERN_NEGATIVE   1
#define	LV_FONT_DECLARE(font_name)   extern lv_font_t font_name;

Typedefs
typedef struct _lv_font_struct	lv_font_t

Functions
const uint8_t *	lv_font_get_glyph_bitmap (const lv_font_t *font_p, uint32_t letter)
bool	lv_font_get_glyph_dsc (const lv_font_t *font_p, lv_font_glyph_dsc_t *dsc_out, uint32_t letter, uint32_t letter_next)
uint16_t	lv_font_get_glyph_width (const lv_font_t *font, uint32_t letter, uint32_t letter_next)

Macro Definition Documentation

LV_FONT_WIDTH_FRACT_DIGIT

#define LV_FONT_WIDTH_FRACT_DIGIT   4

LV_FONT_KERN_POSITIVE

#define LV_FONT_KERN_POSITIVE   0

LV_FONT_KERN_NEGATIVE

#define LV_FONT_KERN_NEGATIVE   1

LV_FONT_DECLARE

#define LV_FONT_DECLARE

(

font_name

)

extern lv_font_t font_name;

Typedef Documentation

lv_font_t

typedef struct _lv_font_struct lv_font_t

Function Documentation

lv_font_get_glyph_bitmap()

const uint8_t* lv_font_get_glyph_bitmap	(	const lv_font_t *	font_p,
		uint32_t	letter
	)

Return with the bitmap of a font.

Parameters

font_p	pointer to a font
letter	an UNICODE character code

Returns

pointer to the bitmap of the letter

lv_font_get_glyph_dsc()

bool lv_font_get_glyph_dsc	(	const lv_font_t *	font_p,
		lv_font_glyph_dsc_t *	dsc_out,
		uint32_t	letter,
		uint32_t	letter_next
	)

Get the descriptor of a glyph

Parameters

font_p	pointer to font
dsc_out	store the result descriptor here
letter	an UNICODE letter code

Returns

true: descriptor is successfully loaded into dsc_out. false: the letter was not found, no data is loaded to dsc_out

lv_font_get_glyph_width()

uint16_t lv_font_get_glyph_width	(	const lv_font_t *	font,
		uint32_t	letter,
		uint32_t	letter_next
	)

Get the width of a glyph with kerning

Parameters

font	pointer to a font
letter	an UNICODE letter
letter_next	the next letter after letter. Used for kerning

Returns

the width of the glyph