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      1 // Copyright 2016 PDFium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
      6 
      7 #ifndef CORE_FPDFDOC_CPVT_WORDRANGE_H_
      8 #define CORE_FPDFDOC_CPVT_WORDRANGE_H_
      9 
     10 #include "core/fpdfdoc/cpvt_wordplace.h"
     11 #include "core/fxcrt/fx_system.h"
     12 
     13 struct CPVT_WordRange {
     14   CPVT_WordRange() {}
     15 
     16   CPVT_WordRange(const CPVT_WordPlace& begin, const CPVT_WordPlace& end) {
     17     Set(begin, end);
     18   }
     19 
     20   void Default() {
     21     BeginPos.Default();
     22     EndPos.Default();
     23   }
     24 
     25   void Set(const CPVT_WordPlace& begin, const CPVT_WordPlace& end) {
     26     BeginPos = begin;
     27     EndPos = end;
     28     SwapWordPlace();
     29   }
     30 
     31   void SetBeginPos(const CPVT_WordPlace& begin) {
     32     BeginPos = begin;
     33     SwapWordPlace();
     34   }
     35 
     36   void SetEndPos(const CPVT_WordPlace& end) {
     37     EndPos = end;
     38     SwapWordPlace();
     39   }
     40 
     41   bool IsExist() const { return BeginPos != EndPos; }
     42 
     43   bool operator!=(const CPVT_WordRange& wr) const {
     44     return wr.BeginPos != BeginPos || wr.EndPos != EndPos;
     45   }
     46 
     47   void SwapWordPlace() {
     48     if (BeginPos.WordCmp(EndPos) > 0) {
     49       CPVT_WordPlace place = EndPos;
     50       EndPos = BeginPos;
     51       BeginPos = place;
     52     }
     53   }
     54 
     55   CPVT_WordPlace BeginPos;
     56   CPVT_WordPlace EndPos;
     57 };
     58 
     59 #endif  // CORE_FPDFDOC_CPVT_WORDRANGE_H_
     60