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114 lines
3.1 KiB
C
114 lines
3.1 KiB
C
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//
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// Header file for TTF library
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//
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// https://github.com/michaelrsweet/ttf
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//
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// Copyright © 2018-2021 by Michael R Sweet.
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//
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// Licensed under Apache License v2.0. See the file "LICENSE" for more
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// information.
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//
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#ifndef TTF_H
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# define TTF_H
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//
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// Include necessary headers...
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//
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# include <stdbool.h>
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# include <sys/types.h>
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# ifdef __cplusplus
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extern "C" {
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# endif //
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//
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// Types...
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//
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typedef struct _ttf_s ttf_t; //// Font object
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typedef void (*ttf_err_cb_t)(void *data, const char *message);
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//// Font error callback
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typedef enum ttf_stretch_e //// Font stretch
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{
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TTF_STRETCH_NORMAL, // normal
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TTF_STRETCH_ULTRA_CONDENSED, // ultra-condensed
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TTF_STRETCH_EXTRA_CONDENSED, // extra-condensed
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TTF_STRETCH_CONDENSED, // condensed
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TTF_STRETCH_SEMI_CONDENSED, // semi-condensed
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TTF_STRETCH_SEMI_EXPANDED, // semi-expanded
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TTF_STRETCH_EXPANDED, // expanded
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TTF_STRETCH_EXTRA_EXPANDED, // extra-expanded
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TTF_STRETCH_ULTRA_EXPANDED // ultra-expanded
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} ttf_stretch_t;
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typedef enum ttf_style_e //// Font style
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{
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TTF_STYLE_NORMAL, // Normal font
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TTF_STYLE_ITALIC, // Italic font
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TTF_STYLE_OBLIQUE // Oblique (angled) font
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} ttf_style_t;
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typedef enum ttf_variant_e //// Font variant
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{
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TTF_VARIANT_NORMAL, // Normal font
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TTF_VARIANT_SMALL_CAPS // Font whose lowercase letters are small capitals
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} ttf_variant_t;
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typedef enum ttf_weight_e //// Font weight
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{
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TTF_WEIGHT_100 = 100, // Weight 100 (Thin)
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TTF_WEIGHT_200 = 200, // Weight 200 (Extra/Ultra-Light)
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TTF_WEIGHT_300 = 300, // Weight 300 (Light)
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TTF_WEIGHT_400 = 400, // Weight 400 (Normal/Regular)
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TTF_WEIGHT_500 = 500, // Weight 500 (Medium)
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TTF_WEIGHT_600 = 600, // Weight 600 (Semi/Demi-Bold)
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TTF_WEIGHT_700 = 700, // Weight 700 (Bold)
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TTF_WEIGHT_800 = 800, // Weight 800 (Extra/Ultra-Bold)
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TTF_WEIGHT_900 = 900 // Weight 900 (Black/Heavy)
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} ttf_weight_t;
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typedef struct ttf_rect_s //// Bounding rectangle
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{
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float left; // Left offset
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float top; // Top offset
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float right; // Right offset
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float bottom; // Bottom offset
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} ttf_rect_t;
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//
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// Functions...
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//
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extern ttf_t *ttfCreate(const char *filename, size_t idx, ttf_err_cb_t err_cb, void *err_data);
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extern void ttfDelete(ttf_t *font);
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extern int ttfGetAscent(ttf_t *font);
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extern ttf_rect_t *ttfGetBounds(ttf_t *font, ttf_rect_t *bounds);
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extern int ttfGetCapHeight(ttf_t *font);
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extern const char *ttfGetCopyright(ttf_t *font);
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extern int ttfGetDescent(ttf_t *font);
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extern ttf_rect_t *ttfGetExtents(ttf_t *font, float size, const char *s, ttf_rect_t *extents);
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extern const char *ttfGetFamily(ttf_t *font);
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extern float ttfGetItalicAngle(ttf_t *font);
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extern size_t ttfGetNumFonts(ttf_t *font);
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extern const char *ttfGetPostScriptName(ttf_t *font);
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extern ttf_stretch_t ttfGetStretch(ttf_t *font);
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extern ttf_style_t ttfGetStyle(ttf_t *font);
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extern const char *ttfGetVersion(ttf_t *font);
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extern int ttfGetWidth(ttf_t *font, int ch);
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extern ttf_weight_t ttfGetWeight(ttf_t *font);
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extern int ttfGetXHeight(ttf_t *font);
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extern bool ttfIsFixedPitch(ttf_t *font);
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# ifdef __cplusplus
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}
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# endif // __cplusplus
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#endif // !TTF_H
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