Mercurial > hg > orthanc-stone
diff Samples/Deprecated/Sdl/TrackerSampleApp.cpp @ 1348:eac254fb6791 broker
Moved Application/Samples/* to Application/Samples/Deprecated/* (remaining) + moved Samples/* to Samples/Deprecated/*
author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Tue, 07 Apr 2020 14:31:28 +0200 |
parents | Samples/Sdl/TrackerSampleApp.cpp@8a0a62189f46 |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Samples/Deprecated/Sdl/TrackerSampleApp.cpp Tue Apr 07 14:31:28 2020 +0200 @@ -0,0 +1,733 @@ +/** + * 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 "TrackerSampleApp.h" + +#include "../../Framework/OpenGL/SdlOpenGLContext.h" +#include "../../Framework/Scene2D/CairoCompositor.h" +#include "../../Framework/Scene2D/ColorTextureSceneLayer.h" +#include "../../Framework/Scene2D/OpenGLCompositor.h" +#include "../../Framework/Scene2D/PanSceneTracker.h" +#include "../../Framework/Scene2D/RotateSceneTracker.h" +#include "../../Framework/Scene2D/Scene2D.h" +#include "../../Framework/Scene2D/ZoomSceneTracker.h" +#include "../../Framework/Scene2DViewport/UndoStack.h" +#include "../../Framework/Scene2DViewport/CreateAngleMeasureTracker.h" +#include "../../Framework/Scene2DViewport/CreateLineMeasureTracker.h" +#include "../../Framework/StoneInitialization.h" + +// From Orthanc framework +#include <Core/Logging.h> +#include <Core/OrthancException.h> +#include <Core/Images/Image.h> +#include <Core/Images/ImageProcessing.h> +#include <Core/Images/PngWriter.h> + +#include <boost/ref.hpp> +#include <boost/make_shared.hpp> +#include <SDL.h> + +#include <stdio.h> + +namespace OrthancStone +{ + const char* MeasureToolToString(size_t i) + { + static const char* descs[] = { + "GuiTool_Rotate", + "GuiTool_Pan", + "GuiTool_Zoom", + "GuiTool_LineMeasure", + "GuiTool_CircleMeasure", + "GuiTool_AngleMeasure", + "GuiTool_EllipseMeasure", + "GuiTool_LAST" + }; + if (i >= GuiTool_LAST) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError, "Wrong tool index"); + } + return descs[i]; + } + + void TrackerSampleApp::SelectNextTool() + { + currentTool_ = static_cast<GuiTool>(currentTool_ + 1); + if (currentTool_ == GuiTool_LAST) + currentTool_ = static_cast<GuiTool>(0);; + printf("Current tool is now: %s\n", MeasureToolToString(currentTool_)); + } + + void TrackerSampleApp::DisplayInfoText() + { + // do not try to use stuff too early! + std::stringstream msg; + + for (std::map<std::string, std::string>::const_iterator kv = infoTextMap_.begin(); + kv != infoTextMap_.end(); ++kv) + { + msg << kv->first << " : " << kv->second << std::endl; + } + std::string msgS = msg.str(); + + TextSceneLayer* layerP = NULL; + if (controller_->GetScene().HasLayer(FIXED_INFOTEXT_LAYER_ZINDEX)) + { + TextSceneLayer& layer = dynamic_cast<TextSceneLayer&>( + controller_->GetScene().GetLayer(FIXED_INFOTEXT_LAYER_ZINDEX)); + layerP = &layer; + } + else + { + std::unique_ptr<TextSceneLayer> layer(new TextSceneLayer); + layerP = layer.get(); + layer->SetColor(0, 255, 0); + layer->SetFontIndex(1); + layer->SetBorder(20); + layer->SetAnchor(BitmapAnchor_TopLeft); + //layer->SetPosition(0,0); + controller_->GetScene().SetLayer(FIXED_INFOTEXT_LAYER_ZINDEX, layer.release()); + } + // position the fixed info text in the upper right corner + layerP->SetText(msgS.c_str()); + double cX = GetCompositor().GetCanvasWidth() * (-0.5); + double cY = GetCompositor().GetCanvasHeight() * (-0.5); + controller_->GetScene().GetCanvasToSceneTransform().Apply(cX,cY); + layerP->SetPosition(cX, cY); + } + + void TrackerSampleApp::DisplayFloatingCtrlInfoText(const PointerEvent& e) + { + ScenePoint2D p = e.GetMainPosition().Apply(controller_->GetScene().GetCanvasToSceneTransform()); + + char buf[128]; + sprintf(buf, "S:(%0.02f,%0.02f) C:(%0.02f,%0.02f)", + p.GetX(), p.GetY(), + e.GetMainPosition().GetX(), e.GetMainPosition().GetY()); + + if (controller_->GetScene().HasLayer(FLOATING_INFOTEXT_LAYER_ZINDEX)) + { + TextSceneLayer& layer = + dynamic_cast<TextSceneLayer&>(controller_->GetScene().GetLayer(FLOATING_INFOTEXT_LAYER_ZINDEX)); + layer.SetText(buf); + layer.SetPosition(p.GetX(), p.GetY()); + } + else + { + std::unique_ptr<TextSceneLayer> layer(new TextSceneLayer); + layer->SetColor(0, 255, 0); + layer->SetText(buf); + layer->SetBorder(20); + layer->SetAnchor(BitmapAnchor_BottomCenter); + layer->SetPosition(p.GetX(), p.GetY()); + controller_->GetScene().SetLayer(FLOATING_INFOTEXT_LAYER_ZINDEX, layer.release()); + } + } + + void TrackerSampleApp::HideInfoText() + { + controller_->GetScene().DeleteLayer(FLOATING_INFOTEXT_LAYER_ZINDEX); + } + + ScenePoint2D TrackerSampleApp::GetRandomPointInScene() const + { + unsigned int w = GetCompositor().GetCanvasWidth(); + LOG(TRACE) << "GetCompositor().GetCanvasWidth() = " << + GetCompositor().GetCanvasWidth(); + unsigned int h = GetCompositor().GetCanvasHeight(); + LOG(TRACE) << "GetCompositor().GetCanvasHeight() = " << + GetCompositor().GetCanvasHeight(); + + if ((w >= RAND_MAX) || (h >= RAND_MAX)) + LOG(WARNING) << "Canvas is too big : tools will not be randomly placed"; + + int x = rand() % w; + int y = rand() % h; + LOG(TRACE) << "random x = " << x << "random y = " << y; + + ScenePoint2D p = controller_->GetViewport().GetPixelCenterCoordinates(x, y); + LOG(TRACE) << "--> p.GetX() = " << p.GetX() << " p.GetY() = " << p.GetY(); + + ScenePoint2D r = p.Apply(controller_->GetScene().GetCanvasToSceneTransform()); + LOG(TRACE) << "--> r.GetX() = " << r.GetX() << " r.GetY() = " << r.GetY(); + return r; + } + + void TrackerSampleApp::CreateRandomMeasureTool() + { + static bool srandCalled = false; + if (!srandCalled) + { + srand(42); + srandCalled = true; + } + + int i = rand() % 2; + LOG(TRACE) << "random i = " << i; + switch (i) + { + case 0: + // line measure + { + boost::shared_ptr<CreateLineMeasureCommand> cmd = + boost::make_shared<CreateLineMeasureCommand>( + boost::ref(IObserver::GetBroker()), + controller_, + GetRandomPointInScene()); + cmd->SetEnd(GetRandomPointInScene()); + controller_->PushCommand(cmd); + } + break; + case 1: + // angle measure + { + boost::shared_ptr<CreateAngleMeasureCommand> cmd = + boost::make_shared<CreateAngleMeasureCommand>( + boost::ref(IObserver::GetBroker()), + controller_, + GetRandomPointInScene()); + cmd->SetCenter(GetRandomPointInScene()); + cmd->SetSide2End(GetRandomPointInScene()); + controller_->PushCommand(cmd); + } + break; + } + } + + void TrackerSampleApp::HandleApplicationEvent( + const SDL_Event & event) + { + DisplayInfoText(); + + if (event.type == SDL_MOUSEMOTION) + { + int scancodeCount = 0; + const uint8_t* keyboardState = SDL_GetKeyboardState(&scancodeCount); + + if (activeTracker_.get() == NULL && + SDL_SCANCODE_LALT < scancodeCount && + keyboardState[SDL_SCANCODE_LALT]) + { + // The "left-ctrl" key is down, while no tracker is present + // Let's display the info text + PointerEvent e; + e.AddPosition(controller_->GetViewport().GetPixelCenterCoordinates( + event.button.x, event.button.y)); + + DisplayFloatingCtrlInfoText(e); + } + else if (activeTracker_.get() != NULL) + { + HideInfoText(); + //LOG(TRACE) << "(event.type == SDL_MOUSEMOTION)"; + if (activeTracker_.get() != NULL) + { + //LOG(TRACE) << "(activeTracker_.get() != NULL)"; + PointerEvent e; + e.AddPosition(controller_->GetViewport().GetPixelCenterCoordinates( + event.button.x, event.button.y)); + + //LOG(TRACE) << "event.button.x = " << event.button.x << " " << + // "event.button.y = " << event.button.y; + LOG(TRACE) << "activeTracker_->PointerMove(e); " << + e.GetMainPosition().GetX() << " " << e.GetMainPosition().GetY(); + + activeTracker_->PointerMove(e); + if (!activeTracker_->IsAlive()) + activeTracker_.reset(); + } + } + else + { + HideInfoText(); + + PointerEvent e; + e.AddPosition(controller_->GetViewport().GetPixelCenterCoordinates(event.button.x, event.button.y)); + + ScenePoint2D scenePos = e.GetMainPosition().Apply( + controller_->GetScene().GetCanvasToSceneTransform()); + //auto measureTools = GetController()->HitTestMeasureTools(scenePos); + //LOG(TRACE) << "# of hit tests: " << measureTools.size(); + + // this returns the collection of measuring tools where hit test is true + std::vector<boost::shared_ptr<MeasureTool> > measureTools = controller_->HitTestMeasureTools(scenePos); + + // let's refresh the measuring tools highlighted state + // first let's tag them as "unhighlighted" + controller_->ResetMeasuringToolsHighlight(); + + // then immediately take the first one and ask it to highlight the + // measuring tool UI part that is hot + if (measureTools.size() > 0) + { + measureTools[0]->Highlight(scenePos); + } + } + } + else if (event.type == SDL_MOUSEBUTTONUP) + { + if (activeTracker_) + { + PointerEvent e; + e.AddPosition(controller_->GetViewport().GetPixelCenterCoordinates(event.button.x, event.button.y)); + activeTracker_->PointerUp(e); + if (!activeTracker_->IsAlive()) + activeTracker_.reset(); + } + } + else if (event.type == SDL_MOUSEBUTTONDOWN) + { + PointerEvent e; + e.AddPosition(controller_->GetViewport().GetPixelCenterCoordinates( + event.button.x, event.button.y)); + if (activeTracker_) + { + activeTracker_->PointerDown(e); + if (!activeTracker_->IsAlive()) + activeTracker_.reset(); + } + else + { + // we ATTEMPT to create a tracker if need be + activeTracker_ = CreateSuitableTracker(event, e); + } + } + else if (event.type == SDL_KEYDOWN && + event.key.repeat == 0 /* Ignore key bounce */) + { + switch (event.key.keysym.sym) + { + case SDLK_ESCAPE: + if (activeTracker_) + { + activeTracker_->Cancel(); + if (!activeTracker_->IsAlive()) + activeTracker_.reset(); + } + break; + + case SDLK_t: + if (!activeTracker_) + SelectNextTool(); + else + { + LOG(WARNING) << "You cannot change the active tool when an interaction" + " is taking place"; + } + break; + + case SDLK_m: + CreateRandomMeasureTool(); + break; + case SDLK_s: + controller_->FitContent(GetCompositor().GetCanvasWidth(), + GetCompositor().GetCanvasHeight()); + break; + + case SDLK_z: + LOG(TRACE) << "SDLK_z has been pressed. event.key.keysym.mod == " << event.key.keysym.mod; + if (event.key.keysym.mod & KMOD_CTRL) + { + if (controller_->CanUndo()) + { + LOG(TRACE) << "Undoing..."; + controller_->Undo(); + } + else + { + LOG(WARNING) << "Nothing to undo!!!"; + } + } + break; + + case SDLK_y: + LOG(TRACE) << "SDLK_y has been pressed. event.key.keysym.mod == " << event.key.keysym.mod; + if (event.key.keysym.mod & KMOD_CTRL) + { + if (controller_->CanRedo()) + { + LOG(TRACE) << "Redoing..."; + controller_->Redo(); + } + else + { + LOG(WARNING) << "Nothing to redo!!!"; + } + } + break; + + case SDLK_c: + TakeScreenshot( + "screenshot.png", + GetCompositor().GetCanvasWidth(), + GetCompositor().GetCanvasHeight()); + break; + + default: + break; + } + } + } + + + void TrackerSampleApp::OnSceneTransformChanged( + const ViewportController::SceneTransformChanged& message) + { + DisplayInfoText(); + } + + boost::shared_ptr<IFlexiblePointerTracker> TrackerSampleApp::CreateSuitableTracker( + const SDL_Event & event, + const PointerEvent & e) + { + using namespace Orthanc; + + switch (event.button.button) + { + case SDL_BUTTON_MIDDLE: + return boost::shared_ptr<IFlexiblePointerTracker>(new PanSceneTracker + (controller_, e)); + + case SDL_BUTTON_RIGHT: + return boost::shared_ptr<IFlexiblePointerTracker>(new ZoomSceneTracker + (controller_, e, GetCompositor().GetCanvasHeight())); + + case SDL_BUTTON_LEFT: + { + //LOG(TRACE) << "CreateSuitableTracker: case SDL_BUTTON_LEFT:"; + // TODO: we need to iterate on the set of measuring tool and perform + // a hit test to check if a tracker needs to be created for edition. + // Otherwise, depending upon the active tool, we might want to create + // a "measuring tool creation" tracker + + // TODO: if there are conflicts, we should prefer a tracker that + // pertains to the type of measuring tool currently selected (TBD?) + boost::shared_ptr<IFlexiblePointerTracker> hitTestTracker = TrackerHitTest(e); + + if (hitTestTracker != NULL) + { + //LOG(TRACE) << "hitTestTracker != NULL"; + return hitTestTracker; + } + else + { + switch (currentTool_) + { + case GuiTool_Rotate: + //LOG(TRACE) << "Creating RotateSceneTracker"; + return boost::shared_ptr<IFlexiblePointerTracker>(new RotateSceneTracker( + controller_, e)); + case GuiTool_Pan: + return boost::shared_ptr<IFlexiblePointerTracker>(new PanSceneTracker( + controller_, e)); + case GuiTool_Zoom: + return boost::shared_ptr<IFlexiblePointerTracker>(new ZoomSceneTracker( + controller_, e, GetCompositor().GetCanvasHeight())); + //case GuiTool_AngleMeasure: + // return new AngleMeasureTracker(GetScene(), e); + //case GuiTool_CircleMeasure: + // return new CircleMeasureTracker(GetScene(), e); + //case GuiTool_EllipseMeasure: + // return new EllipseMeasureTracker(GetScene(), e); + case GuiTool_LineMeasure: + return boost::shared_ptr<IFlexiblePointerTracker>(new CreateLineMeasureTracker( + IObserver::GetBroker(), controller_, e)); + case GuiTool_AngleMeasure: + return boost::shared_ptr<IFlexiblePointerTracker>(new CreateAngleMeasureTracker( + IObserver::GetBroker(), controller_, e)); + case GuiTool_CircleMeasure: + LOG(ERROR) << "Not implemented yet!"; + return boost::shared_ptr<IFlexiblePointerTracker>(); + case GuiTool_EllipseMeasure: + LOG(ERROR) << "Not implemented yet!"; + return boost::shared_ptr<IFlexiblePointerTracker>(); + default: + throw OrthancException(ErrorCode_InternalError, "Wrong tool!"); + } + } + } + default: + return boost::shared_ptr<IFlexiblePointerTracker>(); + } + } + + + TrackerSampleApp::TrackerSampleApp(MessageBroker& broker) : IObserver(broker) + , currentTool_(GuiTool_Rotate) + , undoStack_(new UndoStack) + , viewport_("Hello", 1024, 1024, false) // False means we do NOT let Windows treat this as a legacy application that needs to be scaled + { + controller_ = boost::shared_ptr<ViewportController>( + new ViewportController(undoStack_, broker, viewport_)); + + controller_->RegisterObserverCallback( + new Callable<TrackerSampleApp, ViewportController::SceneTransformChanged> + (*this, &TrackerSampleApp::OnSceneTransformChanged)); + + TEXTURE_2x2_1_ZINDEX = 1; + TEXTURE_1x1_ZINDEX = 2; + TEXTURE_2x2_2_ZINDEX = 3; + LINESET_1_ZINDEX = 4; + LINESET_2_ZINDEX = 5; + FLOATING_INFOTEXT_LAYER_ZINDEX = 6; + FIXED_INFOTEXT_LAYER_ZINDEX = 7; + } + + void TrackerSampleApp::PrepareScene() + { + // Texture of 2x2 size + { + Orthanc::Image i(Orthanc::PixelFormat_RGB24, 2, 2, false); + + uint8_t* p = reinterpret_cast<uint8_t*>(i.GetRow(0)); + p[0] = 255; + p[1] = 0; + p[2] = 0; + + p[3] = 0; + p[4] = 255; + p[5] = 0; + + p = reinterpret_cast<uint8_t*>(i.GetRow(1)); + p[0] = 0; + p[1] = 0; + p[2] = 255; + + p[3] = 255; + p[4] = 0; + p[5] = 0; + + controller_->GetScene().SetLayer(TEXTURE_2x2_1_ZINDEX, new ColorTextureSceneLayer(i)); + + std::unique_ptr<ColorTextureSceneLayer> l(new ColorTextureSceneLayer(i)); + l->SetOrigin(-3, 2); + l->SetPixelSpacing(1.5, 1); + l->SetAngle(20.0 / 180.0 * M_PI); + controller_->GetScene().SetLayer(TEXTURE_2x2_2_ZINDEX, l.release()); + } + + // Texture of 1x1 size + { + Orthanc::Image i(Orthanc::PixelFormat_RGB24, 1, 1, false); + + uint8_t* p = reinterpret_cast<uint8_t*>(i.GetRow(0)); + p[0] = 255; + p[1] = 0; + p[2] = 0; + + std::unique_ptr<ColorTextureSceneLayer> l(new ColorTextureSceneLayer(i)); + l->SetOrigin(-2, 1); + l->SetAngle(20.0 / 180.0 * M_PI); + controller_->GetScene().SetLayer(TEXTURE_1x1_ZINDEX, l.release()); + } + + // Some lines + { + std::unique_ptr<PolylineSceneLayer> layer(new PolylineSceneLayer); + + layer->SetThickness(1); + + PolylineSceneLayer::Chain chain; + chain.push_back(ScenePoint2D(0 - 0.5, 0 - 0.5)); + chain.push_back(ScenePoint2D(0 - 0.5, 2 - 0.5)); + chain.push_back(ScenePoint2D(2 - 0.5, 2 - 0.5)); + chain.push_back(ScenePoint2D(2 - 0.5, 0 - 0.5)); + layer->AddChain(chain, true, 255, 0, 0); + + chain.clear(); + chain.push_back(ScenePoint2D(-5, -5)); + chain.push_back(ScenePoint2D(5, -5)); + chain.push_back(ScenePoint2D(5, 5)); + chain.push_back(ScenePoint2D(-5, 5)); + layer->AddChain(chain, true, 0, 255, 0); + + double dy = 1.01; + chain.clear(); + chain.push_back(ScenePoint2D(-4, -4)); + chain.push_back(ScenePoint2D(4, -4 + dy)); + chain.push_back(ScenePoint2D(-4, -4 + 2.0 * dy)); + chain.push_back(ScenePoint2D(4, 2)); + layer->AddChain(chain, false, 0, 0, 255); + + controller_->GetScene().SetLayer(LINESET_1_ZINDEX, layer.release()); + } + + // Some text + { + std::unique_ptr<TextSceneLayer> layer(new TextSceneLayer); + layer->SetText("Hello"); + controller_->GetScene().SetLayer(LINESET_2_ZINDEX, layer.release()); + } + } + + + void TrackerSampleApp::DisableTracker() + { + if (activeTracker_) + { + activeTracker_->Cancel(); + activeTracker_.reset(); + } + } + + void TrackerSampleApp::TakeScreenshot(const std::string& target, + unsigned int canvasWidth, + unsigned int canvasHeight) + { + CairoCompositor compositor(controller_->GetScene(), canvasWidth, canvasHeight); + compositor.SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT, FONT_SIZE_0, Orthanc::Encoding_Latin1); + compositor.Refresh(); + + Orthanc::ImageAccessor canvas; + compositor.GetCanvas().GetReadOnlyAccessor(canvas); + + Orthanc::Image png(Orthanc::PixelFormat_RGB24, canvas.GetWidth(), canvas.GetHeight(), false); + Orthanc::ImageProcessing::Convert(png, canvas); + + Orthanc::PngWriter writer; + writer.WriteToFile(target, png); + } + + + boost::shared_ptr<IFlexiblePointerTracker> TrackerSampleApp::TrackerHitTest(const PointerEvent & e) + { + // std::vector<boost::shared_ptr<MeasureTool>> measureTools_; + ScenePoint2D scenePos = e.GetMainPosition().Apply( + controller_->GetScene().GetCanvasToSceneTransform()); + + std::vector<boost::shared_ptr<MeasureTool> > measureTools = controller_->HitTestMeasureTools(scenePos); + + if (measureTools.size() > 0) + { + return measureTools[0]->CreateEditionTracker(e); + } + return boost::shared_ptr<IFlexiblePointerTracker>(); + } + + static void GLAPIENTRY + OpenGLMessageCallback(GLenum source, + GLenum type, + GLuint id, + GLenum severity, + GLsizei length, + const GLchar* message, + const void* userParam) + { + if (severity != GL_DEBUG_SEVERITY_NOTIFICATION) + { + fprintf(stderr, "GL CALLBACK: %s type = 0x%x, severity = 0x%x, message = %s\n", + (type == GL_DEBUG_TYPE_ERROR ? "** GL ERROR **" : ""), + type, severity, message); + } + } + + static bool g_stopApplication = false; + + ICompositor& TrackerSampleApp::GetCompositor() + { + using namespace Orthanc; + try + { + SdlViewport& viewport = dynamic_cast<SdlViewport&>(viewport_); + return viewport.GetCompositor(); + } + catch (std::bad_cast e) + { + throw OrthancException(ErrorCode_InternalError, "Wrong viewport type!"); + } + } + + const ICompositor& TrackerSampleApp::GetCompositor() const + { + using namespace Orthanc; + try + { + SdlViewport& viewport = const_cast<SdlViewport&>(dynamic_cast<const SdlViewport&>(viewport_)); + return viewport.GetCompositor(); + } + catch (std::bad_cast e) + { + throw OrthancException(ErrorCode_InternalError, "Wrong viewport type!"); + } + } + + + void TrackerSampleApp::Run() + { + controller_->FitContent(viewport_.GetCanvasWidth(), viewport_.GetCanvasHeight()); + + glEnable(GL_DEBUG_OUTPUT); + glDebugMessageCallback(OpenGLMessageCallback, 0); + + GetCompositor().SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT, + FONT_SIZE_0, Orthanc::Encoding_Latin1); + GetCompositor().SetFont(1, Orthanc::EmbeddedResources::UBUNTU_FONT, + FONT_SIZE_1, Orthanc::Encoding_Latin1); + + while (!g_stopApplication) + { + GetCompositor().Refresh(); + + SDL_Event event; + while (!g_stopApplication && SDL_PollEvent(&event)) + { + if (event.type == SDL_QUIT) + { + g_stopApplication = true; + break; + } + else if (event.type == SDL_WINDOWEVENT && + event.window.event == SDL_WINDOWEVENT_SIZE_CHANGED) + { + DisableTracker(); // was: tracker.reset(NULL); + } + else if (event.type == SDL_KEYDOWN && + event.key.repeat == 0 /* Ignore key bounce */) + { + switch (event.key.keysym.sym) + { + case SDLK_f: + viewport_.GetWindow().ToggleMaximize(); + break; + + case SDLK_q: + g_stopApplication = true; + break; + default: + break; + } + } + HandleApplicationEvent(event); + } + SDL_Delay(1); + } + } + + void TrackerSampleApp::SetInfoDisplayMessage( + std::string key, std::string value) + { + if (value == "") + infoTextMap_.erase(key); + else + infoTextMap_[key] = value; + DisplayInfoText(); + } + +}