Mercurial > hg > orthanc-stone

annotate Deprecated/Platforms/Wasm/Defaults.h @ 1458:828a9b4ee1b7

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added missing copyright
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 11 Jun 2020 21:23:02 +0200
parents 419d0320c344
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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) 2017-2020 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 #pragma once
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23
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24 #include <emscripten/emscripten.h>
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25
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26 #include "../../Framework/Deprecated/Viewport/WidgetViewport.h"
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27 #include "../../Framework/Deprecated/Widgets/LayoutWidget.h"
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28 #include <Applications/IStoneApplication.h>
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29 #include <Platforms/Wasm/WasmPlatformApplicationAdapter.h>
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31 typedef Deprecated::WidgetViewport* ViewportHandle; // the objects exchanged between JS and C++
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33 #ifdef __cplusplus
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34 extern "C" {
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35 #endif
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36
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37 // JS methods accessible from C++
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38 extern void ScheduleWebViewportRedrawFromCpp(ViewportHandle cppViewportHandle);
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39 extern void UpdateStoneApplicationStatusFromCppWithString(const char* statusUpdateMessage);
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40 extern void UpdateStoneApplicationStatusFromCppWithSerializedMessage(const char* statusUpdateMessage);
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41 extern void stone_console_error(const char*);
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42 extern void stone_console_warning(const char*);
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43 extern void stone_console_info(const char*);
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44 extern void stone_console_trace(const char*);
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46 // C++ methods accessible from JS
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47 extern void EMSCRIPTEN_KEEPALIVE CreateWasmApplication(ViewportHandle cppViewportHandle);
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48 extern void EMSCRIPTEN_KEEPALIVE SetStartupParameter(const char* keyc, const char* value);
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51 #ifdef __cplusplus
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52 }
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53 #endif
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54
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55 // these methods must be implemented in the custom app "mainWasm.cpp"
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56 extern OrthancStone::IStoneApplication* CreateUserApplication(OrthancStone::MessageBroker& broker);
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57 extern OrthancStone::WasmPlatformApplicationAdapter* CreateWasmApplicationAdapter(OrthancStone::MessageBroker& broker, OrthancStone::IStoneApplication* application);
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58
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59 namespace OrthancStone {
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60
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61 // default Observer to trigger Viewport redraw when something changes in the Viewport
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62 class ViewportContentChangedObserver : public IObserver
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63 {
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64 private:
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65 // Flag to avoid flooding JavaScript with redundant Redraw requests
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66 bool isScheduled_;
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67
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68 public:
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69 ViewportContentChangedObserver(MessageBroker& broker) :
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70 IObserver(broker),
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71 isScheduled_(false)
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72 {
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73 }
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74
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75 void Reset()
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76 {
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77 isScheduled_ = false;
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78 }
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79
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80 void OnViewportChanged(const Deprecated::IViewport::ViewportChangedMessage& message)
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81 {
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82 if (!isScheduled_)
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83 {
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84 ScheduleWebViewportRedrawFromCpp((ViewportHandle)&message.GetOrigin()); // loosing constness when transmitted to Web
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85 isScheduled_ = true;
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86 }
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87 }
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88 };
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90 // default status bar to log messages on the console/stdout
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91 class StatusBar : public Deprecated::IStatusBar
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92 {
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93 public:
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94 virtual void ClearMessage()
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95 {
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96 }
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97
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98 virtual void SetMessage(const std::string& message)
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99 {
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100 printf("%s\n", message.c_str());
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101 }
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102 };
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103 }