87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
/*
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* Copyright © 2011 Google, Inc.
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Google Author(s): Behdad Esfahbod
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*/
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#ifndef HELPER_CAIRO_HH
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#define HELPER_CAIRO_HH
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#include "hb.hh"
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#include "options.hh"
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#include <cairo.h>
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cairo_scaled_font_t *
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helper_cairo_create_scaled_font (const font_options_t *font_opts);
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bool
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helper_cairo_scaled_font_has_color (cairo_scaled_font_t *scaled_font);
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extern const char *helper_cairo_supported_formats[];
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cairo_t *
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helper_cairo_create_context (double w, double h,
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view_options_t *view_opts,
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output_options_t *out_opts,
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cairo_content_t content);
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void
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helper_cairo_destroy_context (cairo_t *cr);
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struct helper_cairo_line_t {
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cairo_glyph_t *glyphs;
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unsigned int num_glyphs;
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char *utf8;
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unsigned int utf8_len;
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cairo_text_cluster_t *clusters;
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unsigned int num_clusters;
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cairo_text_cluster_flags_t cluster_flags;
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void finish () {
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if (glyphs)
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cairo_glyph_free (glyphs);
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if (clusters)
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cairo_text_cluster_free (clusters);
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if (utf8)
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g_free (utf8);
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}
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void get_advance (double *x_advance, double *y_advance) {
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*x_advance = glyphs[num_glyphs].x;
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*y_advance = glyphs[num_glyphs].y;
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}
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};
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void
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helper_cairo_line_from_buffer (helper_cairo_line_t *l,
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hb_buffer_t *buffer,
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const char *text,
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unsigned int text_len,
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int scale_bits,
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hb_bool_t utf8_clusters);
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#endif
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