Mercurial > hg > orthanc-stone
view Framework/Loaders/BasicFetchingItemsSorter.cpp @ 1115:f00deb2b4733
Added tag toa2019110401 for changeset 33b0a762e98a
author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Mon, 04 Nov 2019 15:11:44 +0100 |
parents | 51976977d2d3 |
children | 2d8ab34c8c91 |
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/** * Stone of Orthanc * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2019 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * This program 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 * Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #include "BasicFetchingItemsSorter.h" #include <Core/OrthancException.h> namespace OrthancStone { BasicFetchingItemsSorter::BasicFetchingItemsSorter(unsigned int itemsCount) : itemsCount_(itemsCount) { if (itemsCount == 0) { throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); } } void BasicFetchingItemsSorter::Sort(std::vector<unsigned int>& target, unsigned int current) { if (current >= itemsCount_) { throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); } target.clear(); target.reserve(itemsCount_); target.push_back(current); const unsigned int countBelow = current; const unsigned int countAbove = (itemsCount_ - 1) - current; const unsigned int n = std::min(countBelow, countAbove); for (unsigned int i = 1; i <= n; i++) { assert(current + i < itemsCount_ && current >= i); target.push_back(current + i); target.push_back(current - i); } for (unsigned int i = current - n; i > 0; i--) { target.push_back(i - 1); } for (unsigned int i = current + n + 1; i < itemsCount_; i++) { target.push_back(i); } assert(target.size() == itemsCount_); } }