Mercurial > hg > orthanc-stone
diff Applications/Samples/Sdl/SingleFrameViewer/SdlSimpleViewer.cpp @ 1538:d1806b4e4839
moving OrthancStone/Samples/ as Applications/Samples/
author | Sebastien Jodogne <s.jodogne@gmail.com> |
---|---|
date | Tue, 11 Aug 2020 13:24:38 +0200 |
parents | OrthancStone/Samples/Sdl/SingleFrameViewer/SdlSimpleViewer.cpp@301571299212 |
children | 6e0da8370270 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Applications/Samples/Sdl/SingleFrameViewer/SdlSimpleViewer.cpp Tue Aug 11 13:24:38 2020 +0200 @@ -0,0 +1,276 @@ +/** + * Stone of Orthanc + * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics + * Department, University Hospital of Liege, Belgium + * Copyright (C) 2017-2020 Osimis S.A., Belgium + * + * This program is free software: you can redistribute it and/or + * modify it under the terms of the GNU Affero General Public License + * as published by the Free Software Foundation, either version 3 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + **/ + + +#include "SdlSimpleViewerApplication.h" +#include "../SdlHelpers.h" +#include "../../Common/SampleHelpers.h" + +#include "../../../Sources/Loaders/GenericLoadersContext.h" +#include "../../../Sources/StoneException.h" +#include "../../../Sources/StoneEnumerations.h" +#include "../../../Sources/StoneInitialization.h" +#include "../../../Sources/Viewport/SdlViewport.h" + +#include <Compatibility.h> // For std::unique_ptr<> +#include <OrthancException.h> + +#include <boost/program_options.hpp> +#include <SDL.h> + +#include <string> + + +std::string orthancUrl; +std::string instanceId; +int frameIndex = 0; + + +static void ProcessOptions(int argc, char* argv[]) +{ + namespace po = boost::program_options; + po::options_description desc("Usage"); + + desc.add_options() + ("loglevel", po::value<std::string>()->default_value("WARNING"), + "You can choose WARNING, INFO or TRACE for the logging level: Errors and warnings will always be displayed. (default: WARNING)") + + ("orthanc", po::value<std::string>()->default_value("http://localhost:8042"), + "Base URL of the Orthanc instance") + + ("instance", po::value<std::string>()->default_value("285dece8-e1956b38-cdc7d084-6ce3371e-536a9ffc"), + "Orthanc ID of the instance to display") + + ("frame_index", po::value<int>()->default_value(0), + "The zero-based index of the frame (for multi-frame instances)") + ; + + std::cout << desc << std::endl; + + po::variables_map vm; + try + { + po::store(po::parse_command_line(argc, argv, desc), vm); + po::notify(vm); + } + catch (std::exception& e) + { + std::cerr << "Please check your command line options! (\"" << e.what() << "\")" << std::endl; + } + + if (vm.count("loglevel") > 0) + { + std::string logLevel = vm["loglevel"].as<std::string>(); + OrthancStoneHelpers::SetLogLevel(logLevel); + } + + if (vm.count("orthanc") > 0) + { + // maybe check URL validity here + orthancUrl = vm["orthanc"].as<std::string>(); + } + + if (vm.count("instance") > 0) + { + instanceId = vm["instance"].as<std::string>(); + } + + if (vm.count("frame_index") > 0) + { + frameIndex = vm["frame_index"].as<int>(); + } + +} + +/** + * IMPORTANT: The full arguments to "main()" are needed for SDL on + * Windows. Otherwise, one gets the linking error "undefined reference + * to `SDL_main'". https://wiki.libsdl.org/FAQWindows + **/ +int main(int argc, char* argv[]) +{ + try + { + OrthancStone::StoneInitialize(); + + ProcessOptions(argc, argv); + + //Orthanc::Logging::EnableInfoLevel(true); + //Orthanc::Logging::EnableTraceLevel(true); + + { + +#if 1 + boost::shared_ptr<OrthancStone::SdlViewport> viewport = + OrthancStone::SdlOpenGLViewport::Create("Stone of Orthanc", 800, 600); +#else + boost::shared_ptr<OrthancStone::SdlViewport> viewport = + OrthancStone::SdlCairoViewport::Create("Stone of Orthanc", 800, 600); +#endif + + OrthancStone::GenericLoadersContext context(1, 4, 1); + + Orthanc::WebServiceParameters orthancWebService; + orthancWebService.SetUrl(orthancUrl); + context.SetOrthancParameters(orthancWebService); + + context.StartOracle(); + + { + + boost::shared_ptr<SdlSimpleViewerApplication> application( + SdlSimpleViewerApplication::Create(context, viewport)); + + OrthancStone::DicomSource source; + + application->LoadOrthancFrame(source, instanceId, frameIndex); + + OrthancStone::DefaultViewportInteractor interactor; + interactor.SetWindowingLayer(0); + + { + int scancodeCount = 0; + const uint8_t* keyboardState = SDL_GetKeyboardState(&scancodeCount); + + bool stop = false; + while (!stop) + { + bool paint = false; + SDL_Event event; + while (SDL_PollEvent(&event)) + { + if (event.type == SDL_QUIT) + { + stop = true; + break; + } + else if (viewport->IsRefreshEvent(event)) + { + paint = true; + } + else if (event.type == SDL_WINDOWEVENT && + (event.window.event == SDL_WINDOWEVENT_RESIZED || + event.window.event == SDL_WINDOWEVENT_SIZE_CHANGED)) + { + viewport->UpdateSize(event.window.data1, event.window.data2); + } + else if (event.type == SDL_WINDOWEVENT && + (event.window.event == SDL_WINDOWEVENT_SHOWN || + event.window.event == SDL_WINDOWEVENT_EXPOSED)) + { + paint = true; + } + else if (event.type == SDL_KEYDOWN && + event.key.repeat == 0 /* Ignore key bounce */) + { + switch (event.key.keysym.sym) + { + case SDLK_f: + viewport->ToggleMaximize(); + break; + + case SDLK_s: + application->FitContent(); + break; + + case SDLK_q: + stop = true; + break; + + default: + break; + } + } + else if (event.type == SDL_MOUSEBUTTONDOWN || + event.type == SDL_MOUSEMOTION || + event.type == SDL_MOUSEBUTTONUP) + { + std::unique_ptr<OrthancStone::IViewport::ILock> lock(viewport->Lock()); + if (lock->HasCompositor()) + { + OrthancStone::PointerEvent p; + OrthancStoneHelpers::GetPointerEvent(p, lock->GetCompositor(), + event, keyboardState, scancodeCount); + + switch (event.type) + { + case SDL_MOUSEBUTTONDOWN: + lock->GetController().HandleMousePress(interactor, p, + lock->GetCompositor().GetCanvasWidth(), + lock->GetCompositor().GetCanvasHeight()); + lock->Invalidate(); + break; + + case SDL_MOUSEMOTION: + if (lock->GetController().HandleMouseMove(p)) + { + lock->Invalidate(); + } + break; + + case SDL_MOUSEBUTTONUP: + lock->GetController().HandleMouseRelease(p); + lock->Invalidate(); + break; + + default: + throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); + } + } + } + } + + if (paint) + { + viewport->Paint(); + } + + // Small delay to avoid using 100% of CPU + SDL_Delay(1); + } + } + context.StopOracle(); + } + } + + OrthancStone::StoneFinalize(); + return 0; + } + catch (Orthanc::OrthancException& e) + { + LOG(ERROR) << "OrthancException: " << e.What(); + return -1; + } + catch (OrthancStone::StoneException& e) + { + LOG(ERROR) << "StoneException: " << e.What(); + return -1; + } + catch (std::runtime_error& e) + { + LOG(ERROR) << "Runtime error: " << e.what(); + return -1; + } + catch (...) + { + LOG(ERROR) << "Native exception"; + return -1; + } +}