Mercurial > hg > orthanc-stone

annotate Framework/Scene2DViewport/CreateLineMeasureTracker.cpp @ 722:28b9e3a54200

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Undo mechanism implemented (not connected to UI yet). Undo stack and measuring tools are now handled by the ViewportController. Multi-touch does not crash trackers anymore.
author Benjamin Golinvaux <bgo@osimis.io>
date Tue, 21 May 2019 10:27:54 +0200
parents 059e1fd05fd6
children 8e31b174ab26
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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 #include "CreateLineMeasureTracker.h"
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22 #include <Core/OrthancException.h>
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23
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24 using namespace Orthanc;
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25
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26 namespace OrthancStone
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27 {
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28 CreateLineMeasureTracker::CreateLineMeasureTracker(
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29 MessageBroker& broker,
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30 ViewportControllerWPtr controllerW,
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31 const PointerEvent& e)
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32 : CreateMeasureTracker(controllerW)
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33 {
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34 command_.reset(
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35 new CreateLineMeasureCommand(
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36 broker,
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37 controllerW,
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38 e.GetMainPosition().Apply(GetScene()->GetCanvasToSceneTransform())));
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39 }
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40
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41 CreateLineMeasureTracker::~CreateLineMeasureTracker()
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42 {
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43
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44 }
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45
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46 void CreateLineMeasureTracker::PointerMove(const PointerEvent& event)
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47 {
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48 assert(GetScene());
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49
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50 if (!alive_)
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51 {
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52 throw OrthancException(ErrorCode_InternalError,
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53 "Internal error: wrong state in CreateLineMeasureTracker::"
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54 "PointerMove: active_ == false");
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55 }
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56
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57 ScenePoint2D scenePos = event.GetMainPosition().Apply(
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58 GetScene()->GetCanvasToSceneTransform());
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59
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60 //LOG(TRACE) << "scenePos.GetX() = " << scenePos.GetX() << " " <<
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61 // "scenePos.GetY() = " << scenePos.GetY();
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62
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63 CreateLineMeasureTracker* concreteThis =
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64 dynamic_cast<CreateLineMeasureTracker*>(this);
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65 assert(concreteThis != NULL);
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66 GetCommand()->SetEnd(scenePos);
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67 }
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68
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69 void CreateLineMeasureTracker::PointerUp(const PointerEvent& e)
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70 {
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71 // TODO: the current app does not prevent multiple PointerDown AND
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72 // PointerUp to be sent to the tracker.
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73 // Unless we augment the PointerEvent structure with the button index,
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74 // we cannot really tell if this pointer up event matches the initial
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75 // pointer down event. Let's make it simple for now.
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76 alive_ = false;
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77 }
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78
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79 void CreateLineMeasureTracker::PointerDown(const PointerEvent& e)
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80 {
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81 LOG(WARNING) << "Additional touches (fingers, pen, mouse buttons...) "
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82 "are ignored when the line measure creation tracker is active";
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83 }
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84
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85 CreateLineMeasureCommandPtr CreateLineMeasureTracker::GetCommand()
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86 {
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87 return boost::dynamic_pointer_cast<CreateLineMeasureCommand>(command_);
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88 }
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89
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90 }