Mercurial > hg > orthanc-stone
annotate Framework/Loaders/BasicFetchingItemsSorter.cpp @ 1270:2d8ab34c8c91
upgrade to year 2020
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Fri, 31 Jan 2020 17:34:29 +0100 |
| parents | 51976977d2d3 |
| children | 30deba7bc8e2 |
| rev | line source |
|---|---|
| 708 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
|
1270
2d8ab34c8c91
upgrade to year 2020
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
708
diff
changeset
|
5 * Copyright (C) 2017-2020 Osimis S.A., Belgium |
| 708 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU Affero General Public License | |
| 9 * as published by the Free Software Foundation, either version 3 of | |
| 10 * the License, or (at your option) any later version. | |
| 11 * | |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 * Affero General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Affero General Public License | |
| 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #include "BasicFetchingItemsSorter.h" | |
| 23 | |
| 24 #include <Core/OrthancException.h> | |
| 25 | |
| 26 namespace OrthancStone | |
| 27 { | |
| 28 BasicFetchingItemsSorter::BasicFetchingItemsSorter(unsigned int itemsCount) : | |
| 29 itemsCount_(itemsCount) | |
| 30 { | |
| 31 if (itemsCount == 0) | |
| 32 { | |
| 33 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 34 } | |
| 35 } | |
| 36 | |
| 37 | |
| 38 void BasicFetchingItemsSorter::Sort(std::vector<unsigned int>& target, | |
| 39 unsigned int current) | |
| 40 { | |
| 41 if (current >= itemsCount_) | |
| 42 { | |
| 43 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 44 } | |
| 45 | |
| 46 target.clear(); | |
| 47 target.reserve(itemsCount_); | |
| 48 target.push_back(current); | |
| 49 | |
| 50 const unsigned int countBelow = current; | |
| 51 const unsigned int countAbove = (itemsCount_ - 1) - current; | |
| 52 const unsigned int n = std::min(countBelow, countAbove); | |
| 53 | |
| 54 for (unsigned int i = 1; i <= n; i++) | |
| 55 { | |
| 56 assert(current + i < itemsCount_ && | |
| 57 current >= i); | |
| 58 target.push_back(current + i); | |
| 59 target.push_back(current - i); | |
| 60 } | |
| 61 | |
| 62 for (unsigned int i = current - n; i > 0; i--) | |
| 63 { | |
| 64 target.push_back(i - 1); | |
| 65 } | |
| 66 | |
| 67 for (unsigned int i = current + n + 1; i < itemsCount_; i++) | |
| 68 { | |
| 69 target.push_back(i); | |
| 70 } | |
| 71 | |
| 72 assert(target.size() == itemsCount_); | |
| 73 } | |
| 74 } |