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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* rangemap.h
*
* Wed Sep 22 19:17:49 CEST 2010
* Copyright 2010 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of DrumGizmo.
*
* DrumGizmo is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* DrumGizmo is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with DrumGizmo; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#pragma once
#include <vector>
#include <map>
template <typename T1, typename T2> class RangeMap
{
public:
void insert(T1 from, T1 to, T2 value);
std::vector<T2> get(T1 from, T1 to);
std::vector<T2> get(T1 at);
private:
std::multimap<std::pair<T1, T1>, T2> values;
};
template <typename T1, typename T2>
void RangeMap<T1, T2>::insert(T1 from, T1 to, T2 value)
{
if(from < to)
{
values.insert(std::make_pair(std::make_pair(from, to), value));
}
else
{
values.insert(std::make_pair(std::make_pair(to, from), value));
}
}
template <typename T1, typename T2>
std::vector<T2> RangeMap<T1, T2>::get(T1 from, T1 to)
{
std::vector<T2> res;
typename std::multimap<std::pair<T1, T1>, T2>::iterator i = values.begin();
while(i != values.end())
{
T1 a = i->first.first;
T1 b = i->first.second;
if((from >= a && to <= b) || // inside
(from <= a && to >= b) || // containing
(from <= a && to >= a && to <= b) || // overlapping lower
(from >= a && from <= b && to >= b) // overlapping upper
)
{
res.push_back(i->second);
}
i++;
}
return res;
}
template <typename T1, typename T2> std::vector<T2> RangeMap<T1, T2>::get(T1 at)
{
std::vector<T2> res;
typename std::multimap<std::pair<T1, T1>, T2>::iterator i = values.begin();
while(i != values.end())
{
T1 a = i->first.first;
T1 b = i->first.second;
if(at >= a && at <= b)
{
res.push_back(i->second);
}
i++;
}
return res;
}
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