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// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef CORE_FPDFDOC_CPVT_WORDRANGE_H_
#define CORE_FPDFDOC_CPVT_WORDRANGE_H_
#include <algorithm>
#include <utility>
#include "core/fpdfdoc/cpvt_wordplace.h"
#include "core/fxcrt/fx_system.h"
struct CPVT_WordRange {
CPVT_WordRange() {}
CPVT_WordRange(const CPVT_WordPlace& begin, const CPVT_WordPlace& end)
: BeginPos(begin), EndPos(end) {
Normalize();
}
void Reset() {
BeginPos.Reset();
EndPos.Reset();
}
void Set(const CPVT_WordPlace& begin, const CPVT_WordPlace& end) {
BeginPos = begin;
EndPos = end;
Normalize();
}
void SetBeginPos(const CPVT_WordPlace& begin) {
BeginPos = begin;
Normalize();
}
void SetEndPos(const CPVT_WordPlace& end) {
EndPos = end;
Normalize();
}
CPVT_WordRange Intersect(const CPVT_WordRange& that) const {
if (that.EndPos < BeginPos || that.BeginPos > EndPos)
return CPVT_WordRange();
return CPVT_WordRange(std::max(BeginPos, that.BeginPos),
std::min(EndPos, that.EndPos));
}
inline bool IsEmpty() const { return BeginPos == EndPos; }
inline bool operator==(const CPVT_WordRange& wr) const {
return wr.BeginPos == BeginPos && wr.EndPos == EndPos;
}
inline bool operator!=(const CPVT_WordRange& wr) const {
return !(*this == wr);
}
void Normalize() {
if (BeginPos > EndPos)
std::swap(BeginPos, EndPos);
}
CPVT_WordPlace BeginPos;
CPVT_WordPlace EndPos;
};
#endif // CORE_FPDFDOC_CPVT_WORDRANGE_H_
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