hb-cairo.h (3097B)
1 /* 2 * Copyright © 2022 Red Hat, Inc. 3 * 4 * This is part of HarfBuzz, a text shaping library. 5 * 6 * Permission is hereby granted, without written agreement and without 7 * license or royalty fees, to use, copy, modify, and distribute this 8 * software and its documentation for any purpose, provided that the 9 * above copyright notice and the following two paragraphs appear in 10 * all copies of this software. 11 * 12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR 13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES 14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN 15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH 16 * DAMAGE. 17 * 18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, 19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS 21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO 22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. 23 * 24 * Red Hat Author(s): Matthias Clasen 25 */ 26 27 #ifndef HB_CAIRO_H 28 #define HB_CAIRO_H 29 30 #include "hb.h" 31 32 #include <cairo.h> 33 34 HB_BEGIN_DECLS 35 36 HB_EXTERN cairo_font_face_t * 37 hb_cairo_font_face_create_for_font (hb_font_t *font); 38 39 HB_EXTERN hb_font_t * 40 hb_cairo_font_face_get_font (cairo_font_face_t *font_face); 41 42 HB_EXTERN cairo_font_face_t * 43 hb_cairo_font_face_create_for_face (hb_face_t *face); 44 45 HB_EXTERN hb_face_t * 46 hb_cairo_font_face_get_face (cairo_font_face_t *font_face); 47 48 /** 49 * hb_cairo_font_init_func_t: 50 * @font: The #hb_font_t being created 51 * @scaled_font: The respective #cairo_scaled_font_t 52 * @user_data: User data accompanying this method 53 * 54 * The type of a virtual method to be called when a cairo 55 * face created using hb_cairo_font_face_create_for_face() 56 * creates an #hb_font_t for a #cairo_scaled_font_t. 57 * 58 * Return value: the #hb_font_t value to use; in most cases same as @font 59 * 60 * Since: 7.0.0 61 */ 62 typedef hb_font_t * (*hb_cairo_font_init_func_t) (hb_font_t *font, 63 cairo_scaled_font_t *scaled_font, 64 void *user_data); 65 66 HB_EXTERN void 67 hb_cairo_font_face_set_font_init_func (cairo_font_face_t *font_face, 68 hb_cairo_font_init_func_t func, 69 void *user_data, 70 hb_destroy_func_t destroy); 71 72 HB_EXTERN hb_font_t * 73 hb_cairo_scaled_font_get_font (cairo_scaled_font_t *scaled_font); 74 75 HB_EXTERN void 76 hb_cairo_font_face_set_scale_factor (cairo_font_face_t *font_face, 77 unsigned int scale_factor); 78 79 HB_EXTERN unsigned int 80 hb_cairo_font_face_get_scale_factor (cairo_font_face_t *font_face); 81 82 HB_EXTERN void 83 hb_cairo_glyphs_from_buffer (hb_buffer_t *buffer, 84 hb_bool_t utf8_clusters, 85 double x_scale_factor, 86 double y_scale_factor, 87 double x, 88 double y, 89 const char *utf8, 90 int utf8_len, 91 cairo_glyph_t **glyphs, 92 unsigned int *num_glyphs, 93 cairo_text_cluster_t **clusters, 94 unsigned int *num_clusters, 95 cairo_text_cluster_flags_t *cluster_flags); 96 97 HB_END_DECLS 98 99 #endif /* HB_CAIRO_H */