2 * Copyright © 2011 Google, Inc.
4 * This is part of HarfBuzz, a text shaping library.
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.
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
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.
24 * Google Author(s): Behdad Esfahbod
31 #ifndef HELPER_CAIRO_HH
32 #define HELPER_CAIRO_HH
36 helper_cairo_create_scaled_font (const font_options_t *font_opts);
39 helper_cairo_scaled_font_has_color (cairo_scaled_font_t *scaled_font);
41 extern const char *helper_cairo_supported_formats[];
44 helper_cairo_create_context (double w, double h,
45 view_options_t *view_opts,
46 output_options_t *out_opts,
47 cairo_content_t content);
50 helper_cairo_destroy_context (cairo_t *cr);
53 struct helper_cairo_line_t {
54 cairo_glyph_t *glyphs;
55 unsigned int num_glyphs;
57 unsigned int utf8_len;
58 cairo_text_cluster_t *clusters;
59 unsigned int num_clusters;
60 cairo_text_cluster_flags_t cluster_flags;
64 cairo_glyph_free (glyphs);
66 cairo_text_cluster_free (clusters);
71 void get_advance (double *x_advance, double *y_advance) {
72 *x_advance = glyphs[num_glyphs].x;
73 *y_advance = glyphs[num_glyphs].y;
78 helper_cairo_line_from_buffer (helper_cairo_line_t *l,
81 unsigned int text_len,
83 hb_bool_t utf8_clusters);