--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Samples/Common/RtViewerView.cpp	Wed Apr 29 22:06:24 2020 +0200
@@ -0,0 +1,319 @@
+/**
+ * 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/>.
+ **/
+
+// Sample app
+#include "RtViewerView.h"
+#include "RtViewerApp.h"
+#include "SampleHelpers.h"
+
+// Stone of Orthanc
+#include <Framework/StoneInitialization.h>
+#include <Framework/Scene2D/CairoCompositor.h>
+#include <Framework/Scene2D/ColorTextureSceneLayer.h>
+#include <Framework/Scene2D/OpenGLCompositor.h>
+#include <Framework/Scene2D/PanSceneTracker.h>
+#include <Framework/Scene2D/ZoomSceneTracker.h>
+#include <Framework/Scene2D/RotateSceneTracker.h>
+
+#include <Framework/Scene2DViewport/UndoStack.h>
+#include <Framework/Scene2DViewport/CreateLineMeasureTracker.h>
+#include <Framework/Scene2DViewport/CreateAngleMeasureTracker.h>
+#include <Framework/Scene2DViewport/IFlexiblePointerTracker.h>
+#include <Framework/Scene2DViewport/MeasureTool.h>
+#include <Framework/Scene2DViewport/PredeclaredTypes.h>
+#include <Framework/Volumes/VolumeSceneLayerSource.h>
+
+#include <Framework/Oracle/GetOrthancWebViewerJpegCommand.h>
+#include <Framework/Scene2D/GrayscaleStyleConfigurator.h>
+#include <Framework/Scene2D/LookupTableStyleConfigurator.h>
+#include <Framework/Volumes/DicomVolumeImageMPRSlicer.h>
+#include <Framework/StoneException.h>
+
+// Orthanc
+#include <Core/Logging.h>
+#include <Core/OrthancException.h>
+
+// System 
+#include <boost/shared_ptr.hpp>
+#include <boost/weak_ptr.hpp>
+#include <boost/make_shared.hpp>
+
+#include <stdio.h>
+
+
+namespace OrthancStone
+{
+  boost::shared_ptr<RtViewerApp> RtViewerView::GetApp()
+  {
+    return app_.lock();
+  }
+
+  void RtViewerView::DisplayInfoText()
+  {
+    std::unique_ptr<IViewport::ILock> lock(viewport_->Lock());
+    ViewportController& controller = lock->GetController();
+    Scene2D& scene = controller.GetScene();
+
+    // do not try to use stuff too early!
+    OrthancStone::ICompositor& compositor = lock->GetCompositor();
+
+    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 (scene.HasLayer(FIXED_INFOTEXT_LAYER_ZINDEX))
+    {
+      TextSceneLayer& layer = dynamic_cast<TextSceneLayer&>(
+        scene.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);
+      scene.SetLayer(FIXED_INFOTEXT_LAYER_ZINDEX, layer.release());
+    }
+    // position the fixed info text in the upper right corner
+    layerP->SetText(msgS.c_str());
+    double cX = compositor.GetCanvasWidth() * (-0.5);
+    double cY = compositor.GetCanvasHeight() * (-0.5);
+    scene.GetCanvasToSceneTransform().Apply(cX, cY);
+    layerP->SetPosition(cX, cY);
+    lock->Invalidate();
+  }
+
+  void RtViewerView::DisplayFloatingCtrlInfoText(const PointerEvent& e)
+  {
+    std::unique_ptr<IViewport::ILock> lock(viewport_->Lock());
+    ViewportController& controller = lock->GetController();
+    Scene2D& scene = controller.GetScene();
+
+    ScenePoint2D p = e.GetMainPosition().Apply(scene.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 (scene.HasLayer(FLOATING_INFOTEXT_LAYER_ZINDEX))
+    {
+      TextSceneLayer& layer =
+        dynamic_cast<TextSceneLayer&>(scene.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());
+      scene.SetLayer(FLOATING_INFOTEXT_LAYER_ZINDEX, layer.release());
+    }
+  }
+
+  void RtViewerView::HideInfoText()
+  {
+    std::unique_ptr<IViewport::ILock> lock(viewport_->Lock());
+    ViewportController& controller = lock->GetController();
+    Scene2D& scene = controller.GetScene();
+
+    scene.DeleteLayer(FLOATING_INFOTEXT_LAYER_ZINDEX);
+  }
+
+  void RtViewerView::OnSceneTransformChanged(
+    const ViewportController::SceneTransformChanged& message)
+  {
+    DisplayInfoText();
+  }
+
+  void RtViewerView::Invalidate()
+  {
+    std::unique_ptr<OrthancStone::IViewport::ILock> lock(viewport_->Lock());
+    lock->GetCompositor().FitContent(lock->GetController().GetScene());
+    lock->Invalidate();
+  }
+
+  void RtViewerView::FitContent()
+  {
+    std::unique_ptr<OrthancStone::IViewport::ILock> lock(viewport_->Lock());
+    lock->GetCompositor().FitContent(lock->GetController().GetScene());
+    lock->Invalidate();
+  }
+
+  void RtViewerView::RetrieveGeometry()
+  {
+    const VolumeImageGeometry& geometry = GetApp()->GetMainGeometry();
+
+    const unsigned int depth = geometry.GetProjectionDepth(projection_);
+    currentPlane_ = depth / 2;
+
+    planes_.resize(depth);
+
+    for (unsigned int z = 0; z < depth; z++)
+    {
+      planes_[z] = geometry.GetProjectionSlice(projection_, z);
+    }
+
+    UpdateLayers();
+  }
+
+  void RtViewerView::UpdateLayers()
+  {
+    std::unique_ptr<IViewport::ILock> lock(viewport_->Lock());
+
+    if (planes_.size() == 0)
+    {
+      RetrieveGeometry();
+    }
+
+    if (currentPlane_ < planes_.size())
+    {
+      if (ctVolumeLayerSource_.get() != NULL)
+      {
+        ctVolumeLayerSource_->Update(planes_[currentPlane_]);
+      }
+      if (doseVolumeLayerSource_.get() != NULL)
+      {
+        doseVolumeLayerSource_->Update(planes_[currentPlane_]);
+      }
+      if (structLayerSource_.get() != NULL)
+      {
+        structLayerSource_->Update(planes_[currentPlane_]);
+      }
+    }
+    lock->Invalidate();
+  }
+
+  void RtViewerView::PrepareViewport()
+  {
+    std::unique_ptr<IViewport::ILock> lock(viewport_->Lock());
+    ViewportController& controller = lock->GetController();
+    Scene2D& scene = controller.GetScene();
+    ICompositor& compositor = lock->GetCompositor();
+
+    // False means we do NOT let a hi-DPI aware desktop managedr treat this as a legacy application that requires
+    // scaling.
+    controller.FitContent(compositor.GetCanvasWidth(), compositor.GetCanvasHeight());
+
+
+    compositor.SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT,
+                       FONT_SIZE_0, Orthanc::Encoding_Latin1);
+    compositor.SetFont(1, Orthanc::EmbeddedResources::UBUNTU_FONT,
+                       FONT_SIZE_1, Orthanc::Encoding_Latin1);
+  }
+
+  void RtViewerView::SetInfoDisplayMessage(
+    std::string key, std::string value)
+  {
+    if (value == "")
+      infoTextMap_.erase(key);
+    else
+      infoTextMap_[key] = value;
+    DisplayInfoText();
+  }
+
+  void RtViewerView::RegisterMessages()
+  {
+    std::unique_ptr<IViewport::ILock> lock(viewport_->Lock());
+    ViewportController& controller = lock->GetController();
+    Scene2D& scene = controller.GetScene();
+    Register<ViewportController::SceneTransformChanged>(controller, &RtViewerView::OnSceneTransformChanged);
+  }
+
+  void RtViewerView::CreateLayers(boost::shared_ptr<OrthancSeriesVolumeProgressiveLoader> ctLoader,
+                                  boost::shared_ptr<OrthancMultiframeVolumeLoader>        doseLoader,
+                                  boost::shared_ptr<DicomVolumeImage>                     doseVolume,
+                                  boost::shared_ptr<DicomStructureSetLoader>              rtstructLoader)
+  {
+    /**
+    Configure the CT
+    */
+    std::auto_ptr<GrayscaleStyleConfigurator> style(new GrayscaleStyleConfigurator);
+    style->SetLinearInterpolation(true);
+
+    this->SetCtVolumeSlicer(ctLoader, style.release());
+
+    {
+      std::unique_ptr<LookupTableStyleConfigurator> config(new LookupTableStyleConfigurator);
+      config->SetLookupTable(Orthanc::EmbeddedResources::COLORMAP_HOT);
+
+      boost::shared_ptr<DicomVolumeImageMPRSlicer> tmp(new DicomVolumeImageMPRSlicer(doseVolume));
+      this->SetDoseVolumeSlicer(tmp, config.release());
+    }
+
+    this->SetStructureSet(rtstructLoader);
+  }
+
+  void RtViewerView::SetCtVolumeSlicer(const boost::shared_ptr<OrthancStone::IVolumeSlicer>& volume,
+                                       OrthancStone::ILayerStyleConfigurator* style)
+  {
+    std::unique_ptr<IViewport::ILock> lock(viewport_->Lock());
+    ViewportController& controller = lock->GetController();
+    Scene2D& scene = controller.GetScene();
+    int depth = scene.GetMaxDepth() + 1;
+
+    ctVolumeLayerSource_.reset(new OrthancStone::VolumeSceneLayerSource(scene, depth, volume));
+
+    if (style != NULL)
+    {
+      ctVolumeLayerSource_->SetConfigurator(style);
+    }
+  }
+
+  void RtViewerView::SetDoseVolumeSlicer(const boost::shared_ptr<OrthancStone::IVolumeSlicer>& volume,
+                                         OrthancStone::ILayerStyleConfigurator* style)
+  {
+    std::unique_ptr<IViewport::ILock> lock(viewport_->Lock());
+    ViewportController& controller = lock->GetController();
+    Scene2D& scene = controller.GetScene();
+    int depth = scene.GetMaxDepth() + 1;
+
+    doseVolumeLayerSource_.reset(new OrthancStone::VolumeSceneLayerSource(scene, depth, volume));
+
+    if (style != NULL)
+    {
+      doseVolumeLayerSource_->SetConfigurator(style);
+    }
+  }
+
+  void RtViewerView::SetStructureSet(const boost::shared_ptr<OrthancStone::DicomStructureSetLoader>& volume)
+  {
+    std::unique_ptr<IViewport::ILock> lock(viewport_->Lock());
+    ViewportController& controller = lock->GetController();
+    Scene2D& scene = controller.GetScene();
+    int depth = scene.GetMaxDepth() + 1;
+
+    structLayerSource_.reset(new OrthancStone::VolumeSceneLayerSource(scene, depth, volume));
+  }
+}
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