Mercurial > hg > orthanc-stone
annotate Applications/Samples/Sdl/SingleFrameViewer/SdlSimpleViewer.cpp @ 1576:92fca2b3ba3d
sanitizing the handling of canvas size
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Thu, 24 Sep 2020 16:40:30 +0200 |
| parents | b4ccd4963d37 |
| children | 5887a4f8594b |
| 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) 2017-2020 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 |
| 1368 | 21 |
| 22 #include "SdlSimpleViewerApplication.h" | |
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23 #include "../SdlHelpers.h" |
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24 #include "../../Common/SampleHelpers.h" |
| 1368 | 25 |
| 1542 | 26 #include "../../../../OrthancStone/Sources/Loaders/GenericLoadersContext.h" |
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27 #include "../../../../OrthancStone/Sources/StoneEnumerations.h" |
| 1542 | 28 #include "../../../../OrthancStone/Sources/StoneException.h" |
| 29 #include "../../../../OrthancStone/Sources/StoneInitialization.h" | |
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30 #include "../../../../OrthancStone/Sources/Viewport/DefaultViewportInteractor.h" |
| 1542 | 31 #include "../../../../OrthancStone/Sources/Viewport/SdlViewport.h" |
| 1368 | 32 |
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33 #include <Compatibility.h> // For std::unique_ptr<> |
| 1457 | 34 #include <OrthancException.h> |
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35 |
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36 #include <boost/program_options.hpp> |
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37 #include <SDL.h> |
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38 |
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39 #include <string> |
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40 |
| 1368 | 41 |
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42 std::string orthancUrl; |
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43 std::string instanceId; |
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44 int frameIndex = 0; |
| 1368 | 45 |
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46 |
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47 static void ProcessOptions(int argc, char* argv[]) |
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48 { |
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49 namespace po = boost::program_options; |
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50 po::options_description desc("Usage"); |
| 1368 | 51 |
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52 desc.add_options() |
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53 ("loglevel", po::value<std::string>()->default_value("WARNING"), |
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54 "You can choose WARNING, INFO or TRACE for the logging level: Errors and warnings will always be displayed. (default: WARNING)") |
| 1368 | 55 |
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56 ("orthanc", po::value<std::string>()->default_value("http://localhost:8042"), |
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57 "Base URL of the Orthanc instance") |
| 1368 | 58 |
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59 ("instance", po::value<std::string>()->default_value("285dece8-e1956b38-cdc7d084-6ce3371e-536a9ffc"), |
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60 "Orthanc ID of the instance to display") |
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61 |
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62 ("frame_index", po::value<int>()->default_value(0), |
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63 "The zero-based index of the frame (for multi-frame instances)") |
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64 ; |
| 1368 | 65 |
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66 std::cout << desc << std::endl; |
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67 |
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68 po::variables_map vm; |
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69 try |
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70 { |
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71 po::store(po::parse_command_line(argc, argv, desc), vm); |
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72 po::notify(vm); |
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73 } |
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74 catch (std::exception& e) |
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75 { |
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76 std::cerr << "Please check your command line options! (\"" << e.what() << "\")" << std::endl; |
| 1368 | 77 } |
| 78 | |
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79 if (vm.count("loglevel") > 0) |
| 1368 | 80 { |
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81 std::string logLevel = vm["loglevel"].as<std::string>(); |
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82 OrthancStoneHelpers::SetLogLevel(logLevel); |
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83 } |
| 1368 | 84 |
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85 if (vm.count("orthanc") > 0) |
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86 { |
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87 // maybe check URL validity here |
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88 orthancUrl = vm["orthanc"].as<std::string>(); |
| 1368 | 89 } |
| 90 | |
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91 if (vm.count("instance") > 0) |
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92 { |
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93 instanceId = vm["instance"].as<std::string>(); |
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94 } |
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95 |
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96 if (vm.count("frame_index") > 0) |
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97 { |
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98 frameIndex = vm["frame_index"].as<int>(); |
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99 } |
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100 |
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101 } |
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102 |
| 1368 | 103 /** |
| 104 * IMPORTANT: The full arguments to "main()" are needed for SDL on | |
| 105 * Windows. Otherwise, one gets the linking error "undefined reference | |
| 106 * to `SDL_main'". https://wiki.libsdl.org/FAQWindows | |
| 107 **/ | |
| 108 int main(int argc, char* argv[]) | |
| 109 { | |
| 110 try | |
| 111 { | |
| 112 OrthancStone::StoneInitialize(); | |
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113 |
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114 ProcessOptions(argc, argv); |
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115 |
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116 //Orthanc::Logging::EnableInfoLevel(true); |
| 1368 | 117 //Orthanc::Logging::EnableTraceLevel(true); |
| 118 | |
| 119 { | |
| 120 | |
| 121 #if 1 | |
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122 boost::shared_ptr<OrthancStone::SdlViewport> viewport = |
| 1368 | 123 OrthancStone::SdlOpenGLViewport::Create("Stone of Orthanc", 800, 600); |
| 124 #else | |
| 125 boost::shared_ptr<OrthancStone::SdlViewport> viewport = | |
| 126 OrthancStone::SdlCairoViewport::Create("Stone of Orthanc", 800, 600); | |
| 127 #endif | |
| 128 | |
| 129 OrthancStone::GenericLoadersContext context(1, 4, 1); | |
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130 |
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131 Orthanc::WebServiceParameters orthancWebService; |
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132 orthancWebService.SetUrl(orthancUrl); |
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133 context.SetOrthancParameters(orthancWebService); |
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134 |
| 1368 | 135 context.StartOracle(); |
| 136 | |
| 137 { | |
| 138 | |
| 139 boost::shared_ptr<SdlSimpleViewerApplication> application( | |
| 140 SdlSimpleViewerApplication::Create(context, viewport)); | |
| 141 | |
| 142 OrthancStone::DicomSource source; | |
| 143 | |
| 144 application->LoadOrthancFrame(source, instanceId, frameIndex); | |
| 145 | |
| 146 OrthancStone::DefaultViewportInteractor interactor; | |
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147 interactor.SetWindowingLayer(0); |
| 1368 | 148 |
| 149 { | |
| 150 int scancodeCount = 0; | |
| 151 const uint8_t* keyboardState = SDL_GetKeyboardState(&scancodeCount); | |
| 152 | |
| 153 bool stop = false; | |
| 154 while (!stop) | |
| 155 { | |
| 156 bool paint = false; | |
| 157 SDL_Event event; | |
| 158 while (SDL_PollEvent(&event)) | |
| 159 { | |
| 160 if (event.type == SDL_QUIT) | |
| 161 { | |
| 162 stop = true; | |
| 163 break; | |
| 164 } | |
| 165 else if (viewport->IsRefreshEvent(event)) | |
| 166 { | |
| 167 paint = true; | |
| 168 } | |
| 169 else if (event.type == SDL_WINDOWEVENT && | |
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170 (event.window.event == SDL_WINDOWEVENT_RESIZED || |
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171 event.window.event == SDL_WINDOWEVENT_SIZE_CHANGED)) |
| 1368 | 172 { |
| 173 viewport->UpdateSize(event.window.data1, event.window.data2); | |
| 174 } | |
| 175 else if (event.type == SDL_WINDOWEVENT && | |
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176 (event.window.event == SDL_WINDOWEVENT_SHOWN || |
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177 event.window.event == SDL_WINDOWEVENT_EXPOSED)) |
| 1368 | 178 { |
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179 std::unique_ptr<OrthancStone::IViewport::ILock> lock(viewport->Lock()); |
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180 lock->RefreshCanvasSize(); |
| 1368 | 181 } |
| 182 else if (event.type == SDL_KEYDOWN && | |
| 183 event.key.repeat == 0 /* Ignore key bounce */) | |
| 184 { | |
| 185 switch (event.key.keysym.sym) | |
| 186 { | |
| 187 case SDLK_f: | |
| 188 viewport->ToggleMaximize(); | |
| 189 break; | |
| 190 | |
| 191 case SDLK_s: | |
| 192 application->FitContent(); | |
| 193 break; | |
| 194 | |
| 195 case SDLK_q: | |
| 196 stop = true; | |
| 197 break; | |
| 198 | |
| 199 default: | |
| 200 break; | |
| 201 } | |
| 202 } | |
| 203 else if (event.type == SDL_MOUSEBUTTONDOWN || | |
| 204 event.type == SDL_MOUSEMOTION || | |
| 205 event.type == SDL_MOUSEBUTTONUP) | |
| 206 { | |
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207 std::unique_ptr<OrthancStone::IViewport::ILock> lock(viewport->Lock()); |
| 1368 | 208 if (lock->HasCompositor()) |
| 209 { | |
| 210 OrthancStone::PointerEvent p; | |
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211 OrthancStoneHelpers::GetPointerEvent(p, lock->GetCompositor(), |
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212 event, keyboardState, scancodeCount); |
| 1368 | 213 |
| 214 switch (event.type) | |
| 215 { | |
| 216 case SDL_MOUSEBUTTONDOWN: | |
| 217 lock->GetController().HandleMousePress(interactor, p, | |
| 218 lock->GetCompositor().GetCanvasWidth(), | |
| 219 lock->GetCompositor().GetCanvasHeight()); | |
| 220 lock->Invalidate(); | |
| 221 break; | |
| 222 | |
| 223 case SDL_MOUSEMOTION: | |
| 224 if (lock->GetController().HandleMouseMove(p)) | |
| 225 { | |
| 226 lock->Invalidate(); | |
| 227 } | |
| 228 break; | |
| 229 | |
| 230 case SDL_MOUSEBUTTONUP: | |
| 231 lock->GetController().HandleMouseRelease(p); | |
| 232 lock->Invalidate(); | |
| 233 break; | |
| 234 | |
| 235 default: | |
| 236 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 237 } | |
| 238 } | |
| 239 } | |
| 240 } | |
| 241 | |
| 242 if (paint) | |
| 243 { | |
| 244 viewport->Paint(); | |
| 245 } | |
| 246 | |
| 247 // Small delay to avoid using 100% of CPU | |
| 248 SDL_Delay(1); | |
| 249 } | |
| 250 } | |
| 251 context.StopOracle(); | |
| 252 } | |
| 253 } | |
| 254 | |
| 255 OrthancStone::StoneFinalize(); | |
| 256 return 0; | |
| 257 } | |
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258 catch (Orthanc::OrthancException& e) |
| 1368 | 259 { |
| 260 LOG(ERROR) << "OrthancException: " << e.What(); | |
| 261 return -1; | |
| 262 } | |
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263 catch (OrthancStone::StoneException& e) |
| 1368 | 264 { |
| 265 LOG(ERROR) << "StoneException: " << e.What(); | |
| 266 return -1; | |
| 267 } | |
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268 catch (std::runtime_error& e) |
| 1368 | 269 { |
| 270 LOG(ERROR) << "Runtime error: " << e.what(); | |
| 271 return -1; | |
| 272 } | |
| 273 catch (...) | |
| 274 { | |
| 275 LOG(ERROR) << "Native exception"; | |
| 276 return -1; | |
| 277 } | |
| 278 } |