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
27 #ifndef HELPER_CAIRO_HH
28 #define HELPER_CAIRO_HH
37 helper_cairo_create_scaled_font (const font_options_t *font_opts);
40 helper_cairo_scaled_font_has_color (cairo_scaled_font_t *scaled_font);
42 extern const char *helper_cairo_supported_formats[];
45 helper_cairo_create_context (double w, double h,
46 view_options_t *view_opts,
47 output_options_t *out_opts,
48 cairo_content_t content);
51 helper_cairo_destroy_context (cairo_t *cr);
54 struct helper_cairo_line_t {
55 cairo_glyph_t *glyphs;
56 unsigned int num_glyphs;
58 unsigned int utf8_len;
59 cairo_text_cluster_t *clusters;
60 unsigned int num_clusters;
61 cairo_text_cluster_flags_t cluster_flags;
65 cairo_glyph_free (glyphs);
67 cairo_text_cluster_free (clusters);
72 void get_advance (double *x_advance, double *y_advance) {
73 *x_advance = glyphs[num_glyphs].x;
74 *y_advance = glyphs[num_glyphs].y;
79 helper_cairo_line_from_buffer (helper_cairo_line_t *l,
82 unsigned int text_len,
84 hb_bool_t utf8_clusters);