Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Loaders/BasicFetchingItemsSorter.cpp @ 1619:4c9e68291467
Added code to remove the wheel callback in dtor, to prevent access to dead object
author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Mon, 02 Nov 2020 17:55:35 +0100 |
parents | 8563ea5d8ae4 |
children | 59f95b9ea858 |
rev | line source |
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708 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
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Sebastien Jodogne <s.jodogne@gmail.com>
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium |
708 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
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8 * modify it under the terms of the GNU Lesser General Public License |
708 | 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 | |
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parents:
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
8563ea5d8ae4
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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15 * Lesser General Public License for more details. |
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16 * |
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parents:
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17 * You should have received a copy of the GNU Lesser General Public |
8563ea5d8ae4
relicensing some files, cf. osimis bm26 and chu agreement on 2020-05-20
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
18 * License along with this program. If not, see |
8563ea5d8ae4
relicensing some files, cf. osimis bm26 and chu agreement on 2020-05-20
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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19 * <http://www.gnu.org/licenses/>. |
708 | 20 **/ |
21 | |
22 | |
23 #include "BasicFetchingItemsSorter.h" | |
24 | |
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25 #include <OrthancException.h> |
708 | 26 |
27 namespace OrthancStone | |
28 { | |
29 BasicFetchingItemsSorter::BasicFetchingItemsSorter(unsigned int itemsCount) : | |
30 itemsCount_(itemsCount) | |
31 { | |
32 if (itemsCount == 0) | |
33 { | |
34 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
35 } | |
36 } | |
37 | |
38 | |
39 void BasicFetchingItemsSorter::Sort(std::vector<unsigned int>& target, | |
40 unsigned int current) | |
41 { | |
42 if (current >= itemsCount_) | |
43 { | |
44 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
45 } | |
46 | |
47 target.clear(); | |
48 target.reserve(itemsCount_); | |
49 target.push_back(current); | |
50 | |
51 const unsigned int countBelow = current; | |
52 const unsigned int countAbove = (itemsCount_ - 1) - current; | |
53 const unsigned int n = std::min(countBelow, countAbove); | |
54 | |
55 for (unsigned int i = 1; i <= n; i++) | |
56 { | |
57 assert(current + i < itemsCount_ && | |
58 current >= i); | |
59 target.push_back(current + i); | |
60 target.push_back(current - i); | |
61 } | |
62 | |
63 for (unsigned int i = current - n; i > 0; i--) | |
64 { | |
65 target.push_back(i - 1); | |
66 } | |
67 | |
68 for (unsigned int i = current + n + 1; i < itemsCount_; i++) | |
69 { | |
70 target.push_back(i); | |
71 } | |
72 | |
73 assert(target.size() == itemsCount_); | |
74 } | |
75 } |