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bl_mcu_sdk/components/lvgl/lv_font/lv_font.c
2021-06-20 12:25:46 +08:00

90 lines
2.0 KiB
C

/**
* @file lv_font.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_font.h"
#include "../lv_misc/lv_utils.h"
#include "../lv_misc/lv_log.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
/**********************
* STATIC VARIABLES
**********************/
/**********************
* GLOBAL PROTOTYPES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Return with the bitmap of a font.
* @param font_p pointer to a font
* @param letter an UNICODE character code
* @return pointer to the bitmap of the letter
*/
const uint8_t *lv_font_get_glyph_bitmap(const lv_font_t *font_p, uint32_t letter)
{
return font_p->get_glyph_bitmap(font_p, letter);
}
/**
* Get the descriptor of a glyph
* @param font_p pointer to font
* @param dsc_out store the result descriptor here
* @param letter an UNICODE letter code
* @return true: descriptor is successfully loaded into `dsc_out`.
* false: the letter was not found, no data is loaded to `dsc_out`
*/
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)
{
return font_p->get_glyph_dsc(font_p, dsc_out, letter, letter_next);
}
/**
* Get the width of a glyph with kerning
* @param font pointer to a font
* @param letter an UNICODE letter
* @param letter_next the next letter after `letter`. Used for kerning
* @return the width of the glyph
*/
uint16_t lv_font_get_glyph_width(const lv_font_t *font, uint32_t letter, uint32_t letter_next)
{
lv_font_glyph_dsc_t g;
bool ret;
ret = lv_font_get_glyph_dsc(font, &g, letter, letter_next);
if (ret) {
return g.adv_w;
} else {
return 0;
}
}
/**********************
* STATIC FUNCTIONS
**********************/