Mercurial > hg > orthanc-stone

annotate Framework/Messages/IMessage.h @ 542:efdf45c5aeb0

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 20 Mar 2019 12:38:48 +0100
parents b70e9be013e4
children 9cd19b28f011
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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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21
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22 #pragma once
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23
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24 #include "../StoneEnumerations.h"
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26 #include <boost/noncopyable.hpp>
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28 namespace OrthancStone
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29 {
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30 // base message that are exchanged between IObservable and IObserver
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31 class IMessage : public boost::noncopyable
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32 {
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33 private:
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34 int messageType_;
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36 protected:
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37 IMessage(const int& messageType) :
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38 messageType_(messageType)
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39 {
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40 }
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42 public:
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43 virtual ~IMessage()
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44 {
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45 }
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46
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47 virtual int GetType() const
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48 {
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49 return messageType_;
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50 }
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51 };
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53
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54 // base class to derive from to implement your own messages
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55 // it handles the message type for you
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56 template <int type>
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57 class BaseMessage : public IMessage
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58 {
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59 public:
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60 enum
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61 {
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62 Type = type
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63 };
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64
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65 BaseMessage() :
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66 IMessage(static_cast<int>(Type))
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67 {
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68 }
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69 };
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72 // simple message implementation when no payload is needed
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73 // sample usage:
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74 // typedef NoPayloadMessage<MessageType_VolumeSlicer_GeometryReady> GeometryReadyMessage;
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75 template <int type>
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76 class NoPayloadMessage : public BaseMessage<type>
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77 {
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78 public:
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79 NoPayloadMessage() :
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80 BaseMessage<type>()
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81 {
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82 }
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83 };
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85 // simple message implementation when no payload is needed but the origin is required
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86 // sample usage:
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87 // typedef OriginMessage<MessageType_SliceLoader_GeometryError, OrthancSlicesLoader> SliceGeometryErrorMessage;
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88 template <int type, typename TOrigin>
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89 class OriginMessage : public BaseMessage<type>
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90 {
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91 private:
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92 const TOrigin& origin_;
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93
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94 public:
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95 OriginMessage(const TOrigin& origin) :
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96 BaseMessage<type>(),
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97 origin_(origin)
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98 {
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99 }
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100
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101 const TOrigin& GetOrigin() const
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102 {
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103 return origin_;
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104 }
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105 };
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106 }