kc3-lang/harfbuzz/util/shape-consumer.hh

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• Hash : 7235f33f
  Author :
  Date : 2013-06-10T14:39:51
  

  Fix misc warnings reported by cppcheck
  
  https://bugs.freedesktop.org/show_bug.cgi?id=65544
  

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• util/shape-consumer.hh

• /*
   * Copyright © 2011,2012  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"
  
  #ifndef HB_SHAPE_CONSUMER_HH
  #define HB_SHAPE_CONSUMER_HH
  
  
  template <typename output_t>
  struct shape_consumer_t
  {
    shape_consumer_t (option_parser_t *parser)
  		  : failed (false),
  		    shaper (parser),
  		    output (parser),
  		    font (NULL) {}
  
    void init (const font_options_t *font_opts)
    {
      font = hb_font_reference (font_opts->get_font ());
      output.init (font_opts);
      failed = false;
    }
    void consume_line (hb_buffer_t  *buffer,
  		     const char   *text,
  		     unsigned int  text_len,
  		     const char   *text_before,
  		     const char   *text_after)
    {
      output.new_line ();
  
      for (unsigned int n = shaper.num_iterations; n; n--)
      {
        shaper.populate_buffer (buffer, text, text_len, text_before, text_after);
        if (n == 1)
  	output.consume_text (buffer, text, text_len, shaper.utf8_clusters);
        if (!shaper.shape (font, buffer)) {
  	failed = true;
  	hb_buffer_set_length (buffer, 0);
  	output.shape_failed (buffer, text, text_len, shaper.utf8_clusters);
  	return;
        }
      }
  
      output.consume_glyphs (buffer, text, text_len, shaper.utf8_clusters);
    }
    void finish (const font_options_t *font_opts)
    {
      output.finish (font_opts);
      hb_font_destroy (font);
      font = NULL;
    }
  
    public:
    bool failed;
  
    protected:
    shape_options_t shaper;
    output_t output;
  
    hb_font_t *font;
  };
  
  
  #endif
  

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