--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancStone/Sources/Scene2DViewport/MeasureCommands.h	Tue Jul 07 16:21:02 2020 +0200
@@ -0,0 +1,108 @@
+/**
+ * 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/>.
+ **/
+#pragma once
+
+#include "../Viewport/IViewport.h"
+
+// to be moved into Stone
+#include "PredeclaredTypes.h"
+#include "MeasureTool.h"
+#include "LineMeasureTool.h"
+#include "AngleMeasureTool.h"
+
+#include <boost/shared_ptr.hpp>
+#include <boost/noncopyable.hpp>
+
+namespace OrthancStone
+{
+  class MeasureCommand : public boost::noncopyable
+  {
+  public:
+    MeasureCommand(boost::shared_ptr<IViewport> viewport) : viewport_(viewport)
+    {}
+    virtual void Undo() = 0;
+    virtual void Redo() = 0;
+    
+    virtual ~MeasureCommand() {};
+
+  protected:
+    boost::shared_ptr<IViewport> viewport_;
+  };
+
+  class CreateMeasureCommand : public MeasureCommand
+  {
+  public:
+    CreateMeasureCommand(boost::shared_ptr<IViewport> viewport);
+    virtual ~CreateMeasureCommand();
+    virtual void Undo() ORTHANC_OVERRIDE;
+    virtual void Redo() ORTHANC_OVERRIDE;
+  private:
+    /** Must be implemented by the subclasses that create the actual tool */
+    virtual boost::shared_ptr<MeasureTool> GetMeasureTool() = 0;
+  };
+  
+  class EditMeasureCommand : public MeasureCommand
+  {
+  public:
+    EditMeasureCommand(boost::shared_ptr<MeasureTool> measureTool, boost::shared_ptr<IViewport> viewport);
+    virtual ~EditMeasureCommand();
+    virtual void Undo() ORTHANC_OVERRIDE;
+    virtual void Redo() ORTHANC_OVERRIDE;
+
+    /** This memento is the original object state */
+    boost::shared_ptr<MeasureToolMemento> mementoOriginal_;
+
+  private:
+    /** Must be implemented by the subclasses that edit the actual tool */
+    virtual boost::shared_ptr<MeasureTool> GetMeasureTool() = 0;
+
+  protected:
+
+    /** This memento is updated by the subclasses upon modifications */
+    boost::shared_ptr<MeasureToolMemento> mementoModified_;
+  };
+
+  class DeleteMeasureCommand : public MeasureCommand
+  {
+  public:
+    DeleteMeasureCommand(boost::shared_ptr<MeasureTool> measureTool, boost::shared_ptr<IViewport> viewport);
+    virtual ~DeleteMeasureCommand();
+    virtual void Undo() ORTHANC_OVERRIDE;
+    virtual void Redo() ORTHANC_OVERRIDE;
+
+    /** This memento is the original object state */
+    boost::shared_ptr<MeasureToolMemento> mementoOriginal_;
+
+  private:
+    /** Must be implemented by the subclasses that edit the actual tool */
+    virtual boost::shared_ptr<MeasureTool> GetMeasureTool()
+    {
+      return measureTool_;
+    }
+
+    boost::shared_ptr<MeasureTool> measureTool_;
+
+  protected:
+
+    /** This memento is updated by the subclasses upon modifications */
+    boost::shared_ptr<MeasureToolMemento> mementoModified_;
+  };
+}
+