69 lines
2 KiB
C++
69 lines
2 KiB
C++
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef RANGE_H
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#define RANGE_H
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#include <vector>
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class Range {
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public:
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Range():m_start(0),m_end(0),m_size(0){};
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Range(int start,int size):m_start(start),m_end(start+size),m_size(size){};
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Range(const Range& r):m_start(r.m_start),m_end(r.m_end),m_size(r.m_size){};
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void setRange(int start,int size){m_start = start; m_end = start+size; m_size = size;};
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inline int getStart() const{return m_start;};
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inline int getEnd() const{return m_end;};
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inline int getSize() const{return m_size;};
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Range& operator=(const Range& r) {
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m_start = r.m_start;
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m_end = r.m_end;
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m_size = r.m_size;
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return *this;
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}
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bool operator ==(const Range& r) const {
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return m_start == r.m_start && m_size == r.m_size && m_end == r.m_end;
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}
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bool operator !=(const Range& r) const {return !((*this) == r);};
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bool rangeIntersection(const Range& r,Range& rOut) const ;
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bool rangeUnion(const Range& r,Range& rOut) const ;
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private:
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int m_start;
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int m_end;
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int m_size;
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};
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class RangeList {
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public:
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void addRange(const Range& r);
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void addRanges(const RangeList& rl);
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void delRange(const Range& r,RangeList& deleted);
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void delRanges(const RangeList& rl,RangeList& deleted);
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bool empty() const;
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void merge();
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int size() const;
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void clear();
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Range& operator[](unsigned int i){return list[i];};
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private:
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void erase(unsigned int i);
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std::vector<Range> list;
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};
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#endif
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