1 /*
   2  * Copyright © 2018  Google, Inc.
   3  *
   4  *  This is part of HarfBuzz, a text shaping library.
   5  *
   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.
  11  *
  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
  16  * DAMAGE.
  17  *
  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.
  23  *
  24  * Google Author(s): Garret Rieger, Roderick Sheeter
  25  */
  26 
  27 #ifndef HB_SUBSET_HH
  28 #define HB_SUBSET_HH
  29 
  30 
  31 #include "hb.hh"
  32 
  33 #include "hb-subset.h"
  34 
  35 #include "hb-machinery.hh"
  36 #include "hb-subset-input.hh"
  37 #include "hb-subset-plan.hh"
  38 
  39 struct hb_subset_context_t :
  40        hb_dispatch_context_t<hb_subset_context_t, bool, HB_DEBUG_SUBSET>
  41 {
  42   const char *get_name () { return "SUBSET"; }
  43   template <typename T>
  44   bool dispatch (const T &obj) { return obj.subset (this); }
  45   static bool default_return_value () { return true; }
  46 
  47   hb_subset_plan_t *plan;
  48   hb_serialize_context_t *serializer;
  49   unsigned int debug_depth;
  50 
  51   hb_subset_context_t (hb_subset_plan_t *plan_,
  52                        hb_serialize_context_t *serializer_) :
  53                         plan (plan_),
  54                         serializer (serializer_),
  55                         debug_depth (0) {}
  56 };
  57 
  58 
  59 #endif /* HB_SUBSET_HH */