text: /*
   * 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
   */
  
  #ifndef VIEW_CAIRO_HH
  #define VIEW_CAIRO_HH
  
  #include "hb-private.hh"
  #include "options.hh"
  #include "helper-cairo.hh"
  
  
  struct view_cairo_t
  {
    view_cairo_t (option_parser_t *parser)
  	       : output_options (parser, helper_cairo_supported_formats),
  		 view_options (parser),
  		 direction (HB_DIRECTION_INVALID),
  		 lines (0), scale_bits (0) {}
    ~view_cairo_t (void) {
      if (debug)
        cairo_debug_reset_static_data ();
    }
  
    void init (hb_buffer_t *buffer, const font_options_t *font_opts)
    {
      lines = g_array_new (false, false, sizeof (helper_cairo_line_t));
      scale_bits = -font_opts->subpixel_bits;
    }
    void new_line (void)
    {
    }
    void consume_text (hb_buffer_t  *buffer,
  		     const char   *text,
  		     unsigned int  text_len,
  		     hb_bool_t     utf8_clusters)
    {
    }
    void error (const char *message)
    {
      g_printerr ("%s: %s\n", g_get_prgname (), message);
    }
    void consume_glyphs (hb_buffer_t  *buffer,
  		       const char   *text,
  		       unsigned int  text_len,
  		       hb_bool_t     utf8_clusters)
    {
      direction = hb_buffer_get_direction (buffer);
      helper_cairo_line_t l;
      helper_cairo_line_from_buffer (&l, buffer, text, text_len, scale_bits, utf8_clusters);
      g_array_append_val (lines, l);
    }
    void finish (hb_buffer_t *buffer, const font_options_t *font_opts)
    {
      render (font_opts);
  
      for (unsigned int i = 0; i < lines->len; i++) {
        helper_cairo_line_t &line = g_array_index (lines, helper_cairo_line_t, i);
        line.finish ();
      }
  #if GLIB_CHECK_VERSION (2, 22, 0)
      g_array_unref (lines);
  #else
      g_array_free (lines, TRUE);
  #endif
    }
  
    protected:
  
    output_options_t output_options;
    view_options_t view_options;
  
    void render (const font_options_t *font_opts);
  
    hb_direction_t direction; // Remove this, make segment_properties accessible
    GArray *lines;
    int scale_bits;
  };
  
  #endif
  