/*

 * Copyright © 2011  Google, Inc.

 *

 *  This is part of HarfBuzz, a text shaping library.

 *

 * Permission is hereby granted, without written agreement and without

 * license or royalty fees, to use, copy, modify, and distribute this

 * software and its documentation for any purpose, provided that the

 * above copyright notice and the following two paragraphs appear in

 * all copies of this software.

 *

 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR

 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES

 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN

 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH

 * DAMAGE.

 *

 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,

 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

 * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS

 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO

 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

 *

 * Google Author(s): Behdad Esfahbod

 */

#include "options.hh"

#include <cairo.h>

#ifndef HELPER_CAIRO_HH

#define HELPER_CAIRO_HH

cairo_scaled_font_t *

helper_cairo_create_scaled_font (const font_options_t *font_opts);

bool

helper_cairo_scaled_font_has_color (cairo_scaled_font_t *scaled_font);

extern const char *helper_cairo_supported_formats[];

cairo_t *

helper_cairo_create_context (double w, double h,

			     view_options_t *view_opts,

			     output_options_t *out_opts,

			     cairo_content_t content);

void

helper_cairo_destroy_context (cairo_t *cr);

struct helper_cairo_line_t {

  cairo_glyph_t *glyphs;

  unsigned int num_glyphs;

  char *utf8;

  unsigned int utf8_len;

  cairo_text_cluster_t *clusters;

  unsigned int num_clusters;

  cairo_text_cluster_flags_t cluster_flags;

  void finish (void) {

    if (glyphs)

      cairo_glyph_free (glyphs);

    if (clusters)

      cairo_text_cluster_free (clusters);

    if (utf8)

      g_free (utf8);

  }

  void get_advance (double *x_advance, double *y_advance) {

    *x_advance = glyphs[num_glyphs].x;

    *y_advance = glyphs[num_glyphs].y;

  }

};

void

helper_cairo_line_from_buffer (helper_cairo_line_t *l,

			       hb_buffer_t         *buffer,

			       const char          *text,

			       unsigned int         text_len,

			       int                  scale_bits,

			       hb_bool_t            utf8_clusters);

#endif