Mercurial > hg > orthanc-stone
annotate Framework/Scene2DViewport/OneGesturePointerTracker.cpp @ 1036:d7d3227c11a9
merge
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 07 Oct 2019 15:26:29 +0200 |
parents | e42b491f1fb2 |
children | 6f3f1ef347a3 2d8ab34c8c91 |
rev | line source |
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1 /** |
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2 * Stone of Orthanc |
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2019 Osimis S.A., Belgium |
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6 * |
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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 Affero General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
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11 * |
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12 * This program is distributed in the hope that it will be useful, but |
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Affero General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Affero General Public License |
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 **/ |
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20 |
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21 |
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22 #include "OneGesturePointerTracker.h" |
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24 #include <Core/OrthancException.h> |
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25 |
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26 #include "../StoneException.h" |
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27 |
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28 namespace OrthancStone |
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29 { |
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30 OneGesturePointerTracker::OneGesturePointerTracker( |
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31 boost::weak_ptr<ViewportController> controllerW) |
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32 : controllerW_(controllerW) |
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33 , alive_(true) |
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34 , currentTouchCount_(1) |
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35 { |
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36 } |
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37 |
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38 void OneGesturePointerTracker::PointerUp(const PointerEvent& event) |
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39 { |
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40 // pointer up is only called for the LAST up event in case of a multi-touch |
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41 // gesture |
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42 ORTHANC_ASSERT(currentTouchCount_ > 0, "Wrong state in tracker"); |
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43 currentTouchCount_--; |
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44 LOG(INFO) << "currentTouchCount_ becomes: " << currentTouchCount_; |
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45 if (currentTouchCount_ == 0) |
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46 { |
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47 LOG(INFO) << "currentTouchCount_ == 0 --> alive_ = false"; |
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48 alive_ = false; |
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49 } |
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50 } |
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51 |
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52 void OneGesturePointerTracker::PointerDown(const PointerEvent& event) |
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53 { |
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54 // additional touches are not taken into account but we need to count |
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55 // the number of active touches |
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56 currentTouchCount_++; |
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57 LOG(INFO) << "currentTouchCount_ becomes: " << currentTouchCount_; |
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58 } |
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59 |
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60 bool OneGesturePointerTracker::IsAlive() const |
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61 { |
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62 return alive_; |
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63 } |
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64 |
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65 boost::shared_ptr<ViewportController> OneGesturePointerTracker::GetController() |
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66 { |
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67 return controllerW_.lock(); |
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68 } |
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69 } |