106 lines
2.9 KiB
C
106 lines
2.9 KiB
C
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/**
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* LCD/OLED fonts library
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*
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* Copyright (c) 2016 Ruslan V. Uss (https://github.com/UncleRus),
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* Zaltora (https://github.com/Zaltora)
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* MIT Licensed as described in the file LICENSE
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*/
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#ifndef _EXTRAS_FONTS_H_
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#define _EXTRAS_FONTS_H_
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#include <stdint.h>
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum
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{
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FONT_FACE_GLCD5x7 = 0,
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FONT_FACE_ROBOTO_8PT,
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FONT_FACE_ROBOTO_10PT,
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FONT_FACE_BITOCRA_4X7,
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FONT_FACE_BITOCRA_6X11,
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FONT_FACE_BITOCRA_7X13,
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FONT_FACE_TERMINUS_6X12_ISO8859_1,
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FONT_FACE_TERMINUS_8X14_ISO8859_1,
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FONT_FACE_TERMINUS_BOLD_8X14_ISO8859_1,
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FONT_FACE_TERMINUS_10X18_ISO8859_1,
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FONT_FACE_TERMINUS_BOLD_10X18_ISO8859_1,
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FONT_FACE_TERMINUS_11X22_ISO8859_1,
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FONT_FACE_TERMINUS_BOLD_11X22_ISO8859_1,
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FONT_FACE_TERMINUS_12X24_ISO8859_1,
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FONT_FACE_TERMINUS_BOLD_12X24_ISO8859_1,
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FONT_FACE_TERMINUS_14X28_ISO8859_1,
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FONT_FACE_TERMINUS_BOLD_14X28_ISO8859_1,
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FONT_FACE_TERMINUS_16X32_ISO8859_1,
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FONT_FACE_TERMINUS_BOLD_16X32_ISO8859_1,
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FONT_FACE_TERMINUS_6X12_KOI8_R,
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FONT_FACE_TERMINUS_8X14_KOI8_R,
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FONT_FACE_TERMINUS_BOLD_8X14_KOI8_R,
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FONT_FACE_TERMINUS_14X28_KOI8_R,
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FONT_FACE_TERMINUS_BOLD_14X28_KOI8_R,
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FONT_FACE_TERMINUS_16X32_KOI8_R,
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FONT_FACE_TERMINUS_BOLD_16X32_KOI8_R,
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} font_face_t;
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/**
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* Character descriptor
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*/
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typedef struct _font_char_desc
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{
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uint8_t width; ///< Character width in pixel
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uint16_t offset; ///< Offset of this character in bitmap
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} font_char_desc_t;
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/**
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* Font information
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*/
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typedef struct _font_info
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{
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uint8_t height; ///< Character height in pixel, all characters have same height
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uint8_t c; ///< Simulation of "C" width in TrueType term, the space between adjacent characters
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char char_start; ///< First character
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char char_end; ///< Last character
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const font_char_desc_t *char_descriptors; ///< descriptor for each character
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const uint8_t *bitmap; ///< Character bitmap
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} font_info_t;
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/**
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* Built-in fonts
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*/
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extern const font_info_t *font_builtin_fonts[];
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extern const size_t font_builtin_fonts_count;
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/**
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* Find character decriptor in font
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* @param fnt Poniter to font information struct
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* @param c Character
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* @return Character descriptor or NULL if no character found
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*/
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inline const font_char_desc_t *font_get_char_desc(const font_info_t *fnt, char c)
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{
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return c < fnt->char_start || c > fnt->char_end
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? NULL
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: fnt->char_descriptors + c - fnt->char_start;
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}
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/**
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* Calculate width of string in pixels
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* @param fnt Poniter to font information struct
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* @param s String
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* @return String width
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*/
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uint16_t font_measure_string(const font_info_t *fnt, const char *s);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _EXTRAS_FONTS_H_ */
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