--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Deprecated/Radiography/RadiographyLayerCropTracker.cpp	Wed Apr 29 20:43:09 2020 +0200
@@ -0,0 +1,145 @@
+/**
+ * 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 "RadiographyLayerCropTracker.h"
+
+#include "RadiographySceneCommand.h"
+
+#include <Core/OrthancException.h>
+
+namespace OrthancStone
+{
+  class RadiographyLayerCropTracker::UndoRedoCommand : public RadiographySceneCommand
+  {
+  private:
+    unsigned int  sourceCropX_;
+    unsigned int  sourceCropY_;
+    unsigned int  sourceCropWidth_;
+    unsigned int  sourceCropHeight_;
+    unsigned int  targetCropX_;
+    unsigned int  targetCropY_;
+    unsigned int  targetCropWidth_;
+    unsigned int  targetCropHeight_;
+
+  protected:
+    virtual void UndoInternal(RadiographyLayer& layer) const
+    {
+      layer.SetCrop(sourceCropX_, sourceCropY_, sourceCropWidth_, sourceCropHeight_);
+    }
+
+    virtual void RedoInternal(RadiographyLayer& layer) const
+    {
+      layer.SetCrop(targetCropX_, targetCropY_, targetCropWidth_, targetCropHeight_);
+    }
+
+  public:
+    UndoRedoCommand(const RadiographyLayerCropTracker& tracker) :
+      RadiographySceneCommand(tracker.accessor_),
+      sourceCropX_(tracker.cropX_),
+      sourceCropY_(tracker.cropY_),
+      sourceCropWidth_(tracker.cropWidth_),
+      sourceCropHeight_(tracker.cropHeight_)
+    {
+      tracker.accessor_.GetLayer().GetCrop(targetCropX_, targetCropY_,
+                                           targetCropWidth_, targetCropHeight_);
+    }
+  };
+
+
+  RadiographyLayerCropTracker::RadiographyLayerCropTracker(UndoRedoStack& undoRedoStack,
+                                                           RadiographyScene& scene,
+                                                           const Deprecated::ViewportGeometry& view,
+                                                           size_t layer,
+                                                           const ControlPoint& startControlPoint) :
+    undoRedoStack_(undoRedoStack),
+    accessor_(scene, layer),
+    startControlPoint_(startControlPoint)
+  {
+    if (accessor_.IsValid())
+    {
+      accessor_.GetLayer().GetCrop(cropX_, cropY_, cropWidth_, cropHeight_);
+    }
+  }
+
+
+  void RadiographyLayerCropTracker::Render(CairoContext& context,
+                                           double zoom)
+  {
+    throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
+  }
+
+
+  void RadiographyLayerCropTracker::MouseUp()
+  {
+    if (accessor_.IsValid())
+    {
+      undoRedoStack_.Add(new UndoRedoCommand(*this));
+    }
+  }
+
+  
+  void RadiographyLayerCropTracker::MouseMove(int displayX,
+                                              int displayY,
+                                              double sceneX,
+                                              double sceneY,
+                                              const std::vector<Deprecated::Touch>& displayTouches,
+                                              const std::vector<Deprecated::Touch>& sceneTouches)
+  {
+    if (accessor_.IsValid())
+    {
+      unsigned int x, y;
+        
+      RadiographyLayer& layer = accessor_.GetLayer();
+      if (layer.GetPixel(x, y, sceneX, sceneY))
+      {
+        unsigned int targetX, targetWidth;
+
+        if (startControlPoint_.index == RadiographyControlPointType_TopLeftCorner ||
+            startControlPoint_.index == RadiographyControlPointType_BottomLeftCorner)
+        {
+          targetX = std::min(x, cropX_ + cropWidth_);
+          targetWidth = cropX_ + cropWidth_ - targetX;
+        }
+        else
+        {
+          targetX = cropX_;
+          targetWidth = std::max(x, cropX_) - cropX_;
+        }
+
+        unsigned int targetY, targetHeight;
+
+        if (startControlPoint_.index == RadiographyControlPointType_TopLeftCorner ||
+            startControlPoint_.index == RadiographyControlPointType_TopRightCorner)
+        {
+          targetY = std::min(y, cropY_ + cropHeight_);
+          targetHeight = cropY_ + cropHeight_ - targetY;
+        }
+        else
+        {
+          targetY = cropY_;
+          targetHeight = std::max(y, cropY_) - cropY_;
+        }
+
+        layer.SetCrop(targetX, targetY, targetWidth, targetHeight);
+      }
+    }
+  }
+}