# HG changeset patch
# User Sebastien Jodogne <s.jodogne@gmail.com>
# Date 1621260677 -7200
# Node ID 9b650ab68d4c0aa2cb222b59430a1b5e0b1477d3
# Parent  b325761e0bd34cf2d0ae11a50e1e6b4d69518b48
replaced unneeded use of boost::share_ptr for MeasureCommand mementos by std::unique_ptr

diff -r b325761e0bd3 -r 9b650ab68d4c OrthancStone/Sources/Scene2D/MacroSceneLayer.h
--- a/OrthancStone/Sources/Scene2D/MacroSceneLayer.h	Mon May 17 13:57:25 2021 +0200
+++ b/OrthancStone/Sources/Scene2D/MacroSceneLayer.h	Mon May 17 16:11:17 2021 +0200
@@ -32,7 +32,7 @@
 {
   /**
    * A "macro layer" is a group of sublayers that are handled as a
-   * whole.
+   * whole, and that share the same depth in the scene.
    **/
   class MacroSceneLayer : public ISceneLayer
   {
diff -r b325761e0bd3 -r 9b650ab68d4c OrthancStone/Sources/Scene2DViewport/AngleMeasureTool.cpp
--- a/OrthancStone/Sources/Scene2DViewport/AngleMeasureTool.cpp	Mon May 17 13:57:25 2021 +0200
+++ b/OrthancStone/Sources/Scene2DViewport/AngleMeasureTool.cpp	Mon May 17 16:11:17 2021 +0200
@@ -105,24 +105,21 @@
   }
 
 
-  boost::shared_ptr<MeasureToolMemento> AngleMeasureTool::GetMemento() const
+  MeasureToolMemento* AngleMeasureTool::CreateMemento() const
   {
-    boost::shared_ptr<AngleMeasureToolMemento> memento(new AngleMeasureToolMemento());
+    std::unique_ptr<AngleMeasureToolMemento> memento(new AngleMeasureToolMemento());
     memento->center_ = center_;
     memento->side1End_ = side1End_;
     memento->side2End_ = side2End_;
-    return memento;
+    return memento.release();
   }
   
-  void AngleMeasureTool::SetMemento(boost::shared_ptr<MeasureToolMemento> mementoBase)
+  void AngleMeasureTool::SetMemento(const MeasureToolMemento& mementoBase)
   {
-    boost::shared_ptr<AngleMeasureToolMemento> memento = 
-      boost::dynamic_pointer_cast<AngleMeasureToolMemento>(mementoBase);
-
-    ORTHANC_ASSERT(memento.get() != NULL, "Internal error: wrong (or bad) memento");
-    center_   = memento->center_;
-    side1End_ = memento->side1End_;
-    side2End_ = memento->side2End_;
+    const AngleMeasureToolMemento& memento = dynamic_cast<const AngleMeasureToolMemento&>(mementoBase);
+    center_   = memento.center_;
+    side1End_ = memento.side1End_;
+    side2End_ = memento.side2End_;
     RefreshScene();
   }
 
@@ -352,7 +349,7 @@
           double pointY = center_.GetY() + oy;
 
           char buf[64];
-          double angleDeg = RadiansToDegrees(delta);
+          double angleDeg = std::abs(RadiansToDegrees(delta));
 
           // http://www.ltg.ed.ac.uk/~richard/utf-8.cgi?input=00B0&mode=hex
           sprintf(buf, "%0.02f\xc2\xb0", angleDeg);
diff -r b325761e0bd3 -r 9b650ab68d4c OrthancStone/Sources/Scene2DViewport/AngleMeasureTool.h
--- a/OrthancStone/Sources/Scene2DViewport/AngleMeasureTool.h	Mon May 17 13:57:25 2021 +0200
+++ b/OrthancStone/Sources/Scene2DViewport/AngleMeasureTool.h	Mon May 17 16:11:17 2021 +0200
@@ -53,8 +53,8 @@
     virtual void Highlight(ScenePoint2D p) ORTHANC_OVERRIDE;
     virtual void ResetHighlightState() ORTHANC_OVERRIDE;
     virtual boost::shared_ptr<IFlexiblePointerTracker> CreateEditionTracker(const PointerEvent& e) ORTHANC_OVERRIDE;
-    virtual boost::shared_ptr<MeasureToolMemento> GetMemento() const ORTHANC_OVERRIDE;
-    virtual void SetMemento(boost::shared_ptr<MeasureToolMemento>) ORTHANC_OVERRIDE;
+    virtual MeasureToolMemento* CreateMemento() const ORTHANC_OVERRIDE;
+    virtual void SetMemento(const MeasureToolMemento& memento) ORTHANC_OVERRIDE;
     virtual std::string GetDescription() ORTHANC_OVERRIDE;
 
     enum AngleHighlightArea
diff -r b325761e0bd3 -r 9b650ab68d4c OrthancStone/Sources/Scene2DViewport/EditAngleMeasureCommand.cpp
--- a/OrthancStone/Sources/Scene2DViewport/EditAngleMeasureCommand.cpp	Mon May 17 13:57:25 2021 +0200
+++ b/OrthancStone/Sources/Scene2DViewport/EditAngleMeasureCommand.cpp	Mon May 17 16:11:17 2021 +0200
@@ -34,20 +34,20 @@
   void EditAngleMeasureCommand::SetCenter(ScenePoint2D scenePos)
   {
     dynamic_cast<AngleMeasureTool&>(*measureTool_).SetCenter(scenePos);
-    mementoModified_ = measureTool_->GetMemento();
+    SetMementoModified(measureTool_->CreateMemento());
   }
 
 
   void EditAngleMeasureCommand::SetSide1End(ScenePoint2D scenePos)
   {
     dynamic_cast<AngleMeasureTool&>(*measureTool_).SetSide1End(scenePos);
-    mementoModified_ = measureTool_->GetMemento();
+    SetMementoModified(measureTool_->CreateMemento());
   }
 
 
   void EditAngleMeasureCommand::SetSide2End(ScenePoint2D scenePos)
   {
     dynamic_cast<AngleMeasureTool&>(*measureTool_).SetSide2End(scenePos);
-    mementoModified_ = measureTool_->GetMemento();
+    SetMementoModified(measureTool_->CreateMemento());
   }
 }
diff -r b325761e0bd3 -r 9b650ab68d4c OrthancStone/Sources/Scene2DViewport/EditAngleMeasureTracker.cpp
--- a/OrthancStone/Sources/Scene2DViewport/EditAngleMeasureTracker.cpp	Mon May 17 13:57:25 2021 +0200
+++ b/OrthancStone/Sources/Scene2DViewport/EditAngleMeasureTracker.cpp	Mon May 17 16:11:17 2021 +0200
@@ -61,42 +61,44 @@
 
     ScenePoint2D delta = scenePos - GetOriginalClickPosition();
 
-    boost::shared_ptr<AngleMeasureToolMemento> memento =
-      boost::dynamic_pointer_cast<AngleMeasureToolMemento>(command_->mementoOriginal_);
-
-    ORTHANC_ASSERT(memento.get() != NULL);
+    const AngleMeasureToolMemento& memento =
+      dynamic_cast<const AngleMeasureToolMemento&>(command_->GetMementoOriginal());
 
     switch (modifiedZone_)
     {
       case AngleMeasureTool::AngleHighlightArea_Center:
       {
-        ScenePoint2D newCenter = memento->center_ + delta;
+        ScenePoint2D newCenter = memento.center_ + delta;
         GetCommand()->SetCenter(newCenter);
+        break;
       }
-      break;
+      
       case AngleMeasureTool::AngleHighlightArea_Side1:
       case AngleMeasureTool::AngleHighlightArea_Side2:
       {
-        ScenePoint2D newCenter = memento->center_ + delta;
-        ScenePoint2D newSide1End = memento->side1End_ + delta;
-        ScenePoint2D newSide2End = memento->side2End_ + delta;
+        ScenePoint2D newCenter = memento.center_ + delta;
+        ScenePoint2D newSide1End = memento.side1End_ + delta;
+        ScenePoint2D newSide2End = memento.side2End_ + delta;
         GetCommand()->SetCenter(newCenter);
         GetCommand()->SetSide1End(newSide1End);
         GetCommand()->SetSide2End(newSide2End);
+        break;
       }
-      break;
+      
       case AngleMeasureTool::AngleHighlightArea_Side1End:
       {
-        ScenePoint2D newSide1End = memento->side1End_ + delta;
+        ScenePoint2D newSide1End = memento.side1End_ + delta;
         GetCommand()->SetSide1End(newSide1End);
+        break;
       }
-      break;
+
       case AngleMeasureTool::AngleHighlightArea_Side2End:
       {
-        ScenePoint2D newSide2End = memento->side2End_ + delta;
+        ScenePoint2D newSide2End = memento.side2End_ + delta;
         GetCommand()->SetSide2End(newSide2End);
+        break;
       }
-      break;
+      
       default:
         LOG(WARNING) << "Warning: please retry the measuring tool editing operation!";
         break;
diff -r b325761e0bd3 -r 9b650ab68d4c OrthancStone/Sources/Scene2DViewport/EditLineMeasureCommand.cpp
--- a/OrthancStone/Sources/Scene2DViewport/EditLineMeasureCommand.cpp	Mon May 17 13:57:25 2021 +0200
+++ b/OrthancStone/Sources/Scene2DViewport/EditLineMeasureCommand.cpp	Mon May 17 16:11:17 2021 +0200
@@ -35,13 +35,13 @@
   void EditLineMeasureCommand::SetStart(ScenePoint2D scenePos)
   {
     dynamic_cast<LineMeasureTool&>(*measureTool_).SetStart(scenePos);
-    mementoModified_ = measureTool_->GetMemento();
+    SetMementoModified(measureTool_->CreateMemento());
   }
 
 
   void EditLineMeasureCommand::SetEnd(ScenePoint2D scenePos)
   {
     dynamic_cast<LineMeasureTool&>(*measureTool_).SetEnd(scenePos);
-    mementoModified_ = measureTool_->GetMemento();
+    SetMementoModified(measureTool_->CreateMemento());
   }
 }
diff -r b325761e0bd3 -r 9b650ab68d4c OrthancStone/Sources/Scene2DViewport/EditLineMeasureTracker.cpp
--- a/OrthancStone/Sources/Scene2DViewport/EditLineMeasureTracker.cpp	Mon May 17 13:57:25 2021 +0200
+++ b/OrthancStone/Sources/Scene2DViewport/EditLineMeasureTracker.cpp	Mon May 17 16:11:17 2021 +0200
@@ -56,36 +56,37 @@
 
     ScenePoint2D delta = scenePos - GetOriginalClickPosition();
 
-    boost::shared_ptr<LineMeasureToolMemento> memento =
-      boost::dynamic_pointer_cast<LineMeasureToolMemento>(command_->mementoOriginal_);
-
-    ORTHANC_ASSERT(memento.get() != NULL);
+    const LineMeasureToolMemento& memento =
+      dynamic_cast<const LineMeasureToolMemento&>(command_->GetMementoOriginal());
 
     switch (modifiedZone_)
     {
-    case LineMeasureTool::LineHighlightArea_Start:
-    {
-      ScenePoint2D newStart = memento->start_ + delta;
-      GetCommand()->SetStart(newStart);
-    }
-    break;
-    case LineMeasureTool::LineHighlightArea_End:
-    {
-      ScenePoint2D newEnd = memento->end_ + delta;
-      GetCommand()->SetEnd(newEnd);
-    }
-    break;
-    case LineMeasureTool::LineHighlightArea_Segment:
-    {
-      ScenePoint2D newStart = memento->start_ + delta;
-      ScenePoint2D newEnd = memento->end_ + delta;
-      GetCommand()->SetStart(newStart);
-      GetCommand()->SetEnd(newEnd);
-    }
-    break;
-    default:
-      LOG(WARNING) << "Warning: please retry the measuring tool editing operation!";
-      break;
+      case LineMeasureTool::LineHighlightArea_Start:
+      {
+        ScenePoint2D newStart = memento.start_ + delta;
+        GetCommand()->SetStart(newStart);
+        break;
+      }
+      
+      case LineMeasureTool::LineHighlightArea_End:
+      {
+        ScenePoint2D newEnd = memento.end_ + delta;
+        GetCommand()->SetEnd(newEnd);
+        break;
+      }
+      
+      case LineMeasureTool::LineHighlightArea_Segment:
+      {
+        ScenePoint2D newStart = memento.start_ + delta;
+        ScenePoint2D newEnd = memento.end_ + delta;
+        GetCommand()->SetStart(newStart);
+        GetCommand()->SetEnd(newEnd);
+        break;
+      }
+      
+      default:
+        LOG(WARNING) << "Warning: please retry the measuring tool editing operation!";
+        break;
     }
   }
 
@@ -106,5 +107,4 @@
     ORTHANC_ASSERT(ret.get() != NULL, "Internal error in EditLineMeasureTracker::GetCommand()");
     return ret;
   }
-
 }
diff -r b325761e0bd3 -r 9b650ab68d4c OrthancStone/Sources/Scene2DViewport/LineMeasureTool.cpp
--- a/OrthancStone/Sources/Scene2DViewport/LineMeasureTool.cpp	Mon May 17 13:57:25 2021 +0200
+++ b/OrthancStone/Sources/Scene2DViewport/LineMeasureTool.cpp	Mon May 17 16:11:17 2021 +0200
@@ -178,24 +178,19 @@
     }
   }
 
-  boost::shared_ptr<MeasureToolMemento> LineMeasureTool::GetMemento() const
+  MeasureToolMemento* LineMeasureTool::CreateMemento() const
   {
-    boost::shared_ptr<LineMeasureToolMemento> memento(new LineMeasureToolMemento());
+    std::unique_ptr<LineMeasureToolMemento> memento(new LineMeasureToolMemento());
     memento->start_ = start_;
     memento->end_ = end_;
-    return memento;
+    return memento.release();
   }
 
-  void LineMeasureTool::SetMemento(
-    boost::shared_ptr<MeasureToolMemento> mementoBase)
+  void LineMeasureTool::SetMemento(const MeasureToolMemento& mementoBase)
   {
-    boost::shared_ptr<LineMeasureToolMemento> memento = 
-      boost::dynamic_pointer_cast<LineMeasureToolMemento>(mementoBase);
-    
-    ORTHANC_ASSERT(memento.get() != NULL, "Internal error: wrong (or bad) memento");
-    
-    start_ = memento->start_;
-    end_ = memento->end_;
+    const LineMeasureToolMemento& memento = dynamic_cast<const LineMeasureToolMemento&>(mementoBase);
+    start_ = memento.start_;
+    end_ = memento.end_;
     RefreshScene();
   }
 
diff -r b325761e0bd3 -r 9b650ab68d4c OrthancStone/Sources/Scene2DViewport/LineMeasureTool.h
--- a/OrthancStone/Sources/Scene2DViewport/LineMeasureTool.h	Mon May 17 13:57:25 2021 +0200
+++ b/OrthancStone/Sources/Scene2DViewport/LineMeasureTool.h	Mon May 17 16:11:17 2021 +0200
@@ -52,8 +52,8 @@
     virtual void Highlight(ScenePoint2D p) ORTHANC_OVERRIDE;
     virtual void ResetHighlightState() ORTHANC_OVERRIDE;
     virtual boost::shared_ptr<IFlexiblePointerTracker> CreateEditionTracker(const PointerEvent& e) ORTHANC_OVERRIDE;
-    virtual boost::shared_ptr<MeasureToolMemento> GetMemento() const ORTHANC_OVERRIDE;
-    virtual void SetMemento(boost::shared_ptr<MeasureToolMemento>) ORTHANC_OVERRIDE;
+    virtual MeasureToolMemento* CreateMemento() const ORTHANC_OVERRIDE;
+    virtual void SetMemento(const MeasureToolMemento& memento) ORTHANC_OVERRIDE;
     virtual std::string GetDescription() ORTHANC_OVERRIDE;
 
     enum LineHighlightArea
diff -r b325761e0bd3 -r 9b650ab68d4c OrthancStone/Sources/Scene2DViewport/MeasureCommands.cpp
--- a/OrthancStone/Sources/Scene2DViewport/MeasureCommands.cpp	Mon May 17 13:57:25 2021 +0200
+++ b/OrthancStone/Sources/Scene2DViewport/MeasureCommands.cpp	Mon May 17 16:11:17 2021 +0200
@@ -90,8 +90,8 @@
                                              boost::weak_ptr<IViewport> viewport) :
     MeasureCommand(viewport),
     measureTool_(measureTool),
-    mementoModified_(measureTool->GetMemento()),
-    mementoOriginal_(measureTool->GetMemento())
+    mementoModified_(measureTool->CreateMemento()),
+    mementoOriginal_(measureTool->CreateMemento())
   {
     std::unique_ptr<IViewport::ILock> lock(GetViewportLock());
     GetMeasureTool()->Disable();
@@ -101,8 +101,8 @@
   EditMeasureCommand::EditMeasureCommand(boost::shared_ptr<MeasureTool> measureTool,
                                          boost::weak_ptr<IViewport> viewport) :
     MeasureCommand(viewport),
-    mementoModified_(measureTool->GetMemento()),
-    mementoOriginal_(measureTool->GetMemento())
+    mementoModified_(measureTool->CreateMemento()),
+    mementoOriginal_(measureTool->CreateMemento())
   {
   }
 
@@ -113,11 +113,49 @@
   void EditMeasureCommand::Undo()
   {
     // simply disable the measure tool upon undo
-    GetMeasureTool()->SetMemento(mementoOriginal_);
+    assert(mementoOriginal_.get() != NULL);
+    GetMeasureTool()->SetMemento(*mementoOriginal_);
   }
 
   void EditMeasureCommand::Redo()
   {
-    GetMeasureTool()->SetMemento(mementoModified_);
+    assert(mementoModified_.get() != NULL);
+    GetMeasureTool()->SetMemento(*mementoModified_);
+  }
+
+  const MeasureToolMemento& EditMeasureCommand::GetMementoOriginal() const
+  {
+    assert(mementoOriginal_.get() != NULL);
+    return *mementoOriginal_;
+  }    
+
+  void EditMeasureCommand::SetMementoModified(MeasureToolMemento* memento)
+  {
+    if (memento == NULL)
+    {
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
+    }
+    else
+    {
+      mementoModified_.reset(memento);
+    }
+  }
+
+  const MeasureToolMemento& DeleteMeasureCommand::GetMementoOriginal() const
+  {
+    assert(mementoOriginal_.get() != NULL);
+    return *mementoOriginal_;
+  }    
+
+  void DeleteMeasureCommand::SetMementoModified(MeasureToolMemento* memento)
+  {
+    if (memento == NULL)
+    {
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
+    }
+    else
+    {
+      mementoModified_.reset(memento);
+    }
   }
 }
diff -r b325761e0bd3 -r 9b650ab68d4c OrthancStone/Sources/Scene2DViewport/MeasureCommands.h
--- a/OrthancStone/Sources/Scene2DViewport/MeasureCommands.h	Mon May 17 13:57:25 2021 +0200
+++ b/OrthancStone/Sources/Scene2DViewport/MeasureCommands.h	Mon May 17 16:11:17 2021 +0200
@@ -84,9 +84,14 @@
     /** Must be implemented by the subclasses that edit the actual tool */
     virtual boost::shared_ptr<MeasureTool> GetMeasureTool() = 0;
 
+    /** This memento is updated by the subclasses upon modifications */
+    std::unique_ptr<MeasureToolMemento> mementoModified_;
+    
+    /** This memento is the original object state */
+    std::unique_ptr<MeasureToolMemento> mementoOriginal_;
+
   protected:
-    /** This memento is updated by the subclasses upon modifications */
-    boost::shared_ptr<MeasureToolMemento> mementoModified_;
+    void SetMementoModified(MeasureToolMemento* memento);  // takes ownership
 
   public:
     EditMeasureCommand(boost::shared_ptr<MeasureTool> measureTool,
@@ -97,9 +102,8 @@
     virtual void Undo() ORTHANC_OVERRIDE;
 
     virtual void Redo() ORTHANC_OVERRIDE;
-    
-    /** This memento is the original object state */
-    boost::shared_ptr<MeasureToolMemento> mementoOriginal_;
+
+    const MeasureToolMemento& GetMementoOriginal() const;
   };
 
   
@@ -114,9 +118,14 @@
 
     boost::shared_ptr<MeasureTool> measureTool_;
 
+    /** This memento is updated by the subclasses upon modifications */
+    std::unique_ptr<MeasureToolMemento> mementoModified_;
+
+    /** This memento is the original object state */
+    std::unique_ptr<MeasureToolMemento> mementoOriginal_;
+
   protected:
-    /** This memento is updated by the subclasses upon modifications */
-    boost::shared_ptr<MeasureToolMemento> mementoModified_;
+    void SetMementoModified(MeasureToolMemento* memento);  // takes ownership
 
   public:
     DeleteMeasureCommand(boost::shared_ptr<MeasureTool> measureTool,
@@ -128,8 +137,7 @@
     
     virtual void Redo() ORTHANC_OVERRIDE;
 
-    /** This memento is the original object state */
-    boost::shared_ptr<MeasureToolMemento> mementoOriginal_;
+    const MeasureToolMemento& GetMementoOriginal() const;
   };
 }
 
diff -r b325761e0bd3 -r 9b650ab68d4c OrthancStone/Sources/Scene2DViewport/MeasureTool.h
--- a/OrthancStone/Sources/Scene2DViewport/MeasureTool.h	Mon May 17 13:57:25 2021 +0200
+++ b/OrthancStone/Sources/Scene2DViewport/MeasureTool.h	Mon May 17 16:11:17 2021 +0200
@@ -124,13 +124,13 @@
        This method must return a memento the captures the tool state (not including
        the highlighting state
     */
-    virtual boost::shared_ptr<MeasureToolMemento> GetMemento() const = 0;
+    virtual MeasureToolMemento* CreateMemento() const = 0;
 
     /**
        This method must apply the supplied memento (this requires RTTI to check
        the type)
     */
-    virtual void SetMemento(boost::shared_ptr<MeasureToolMemento>) = 0;
+    virtual void SetMemento(const MeasureToolMemento& memento) = 0;
 
     /**
        This must create an edition tracker suitable for the supplied click position,