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changeset 596:b716763571ad

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IPointerTracker
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 26 Apr 2019 17:05:14 +0200
parents 6e471e6cf09b
children 9e51fb773bbd
files Framework/Scene2D/IPointerTracker.h Framework/Scene2D/Internals/FixedPointAligner.cpp Framework/Scene2D/Internals/FixedPointAligner.h Framework/Scene2D/PanSceneTracker.cpp Framework/Scene2D/PanSceneTracker.h Framework/Scene2D/PointerEvent.cpp Framework/Scene2D/PointerEvent.h Framework/Scene2D/RotateSceneTracker.cpp Framework/Scene2D/RotateSceneTracker.h Framework/Scene2D/ScenePoint2D.h Framework/Scene2D/ZoomSceneTracker.cpp Framework/Scene2D/ZoomSceneTracker.h Framework/Viewport/IMouseTracker.h Resources/CMake/OrthancStoneConfiguration.cmake
diffstat 14 files changed, 651 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Scene2D/IPointerTracker.h	Fri Apr 26 17:05:14 2019 +0200
@@ -0,0 +1,39 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 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 "PointerEvent.h"
+
+namespace OrthancStone
+{
+  class IPointerTracker : public boost::noncopyable
+  {
+  public:
+    virtual ~IPointerTracker()
+    {
+    }
+
+    virtual void Update(const PointerEvent& event) = 0;
+
+    virtual void Release() = 0;
+  };
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Scene2D/Internals/FixedPointAligner.cpp	Fri Apr 26 17:05:14 2019 +0200
@@ -0,0 +1,51 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 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 "FixedPointAligner.h"
+
+namespace OrthancStone
+{
+  namespace Internals
+  {
+    FixedPointAligner::FixedPointAligner(Scene2D& scene,
+                                         const ScenePoint2D& p,
+                                         unsigned int canvasWidth,
+                                         unsigned int canvasHeight) :
+      scene_(scene)
+    {
+      canvas_ = ScenePoint2D(p.GetX() - static_cast<double>(canvasWidth) / 2.0,
+                             p.GetY() - static_cast<double>(canvasHeight) / 2.0);
+      pivot_ = canvas_.Apply(scene_.GetCanvasToSceneTransform());
+    }
+
+    
+    void FixedPointAligner::Apply()
+    {
+      ScenePoint2D p = canvas_.Apply(scene_.GetCanvasToSceneTransform());
+
+      scene_.SetSceneToCanvasTransform(
+        AffineTransform2D::Combine(
+          scene_.GetSceneToCanvasTransform(),
+          AffineTransform2D::CreateOffset(p.GetX() - pivot_.GetX(),
+                                          p.GetY() - pivot_.GetY())));
+    }
+  }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Scene2D/Internals/FixedPointAligner.h	Fri Apr 26 17:05:14 2019 +0200
@@ -0,0 +1,49 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 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 "../Scene2D.h"
+#include "../ScenePoint2D.h"
+
+namespace OrthancStone
+{
+  namespace Internals
+  {
+    // During a mouse event that modifies the view of a scene, keeps
+    // one point (the pivot) at the same position on the canvas
+    class FixedPointAligner : public boost::noncopyable
+    {
+    private:
+      Scene2D&      scene_;
+      ScenePoint2D  pivot_;
+      ScenePoint2D  canvas_;
+
+    public:
+      FixedPointAligner(Scene2D& scene,
+                        const ScenePoint2D& p,
+                        unsigned int canvasWidth,
+                        unsigned int canvasHeight);
+
+      void Apply();
+    };
+  }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Scene2D/PanSceneTracker.cpp	Fri Apr 26 17:05:14 2019 +0200
@@ -0,0 +1,46 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 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 "PanSceneTracker.h"
+
+namespace OrthancStone
+{
+  PanSceneTracker::PanSceneTracker(Scene2D& scene,
+                                   const PointerEvent& event) :
+    scene_(scene),
+    originalSceneToCanvas_(scene_.GetSceneToCanvasTransform()),
+    originalCanvasToScene_(scene_.GetCanvasToSceneTransform())
+  {
+    pivot_ = event.GetMainPosition().Apply(originalCanvasToScene_);
+  }
+
+
+  void PanSceneTracker::Update(const PointerEvent& event)
+  {
+    ScenePoint2D p = event.GetMainPosition().Apply(originalCanvasToScene_);
+      
+    scene_.SetSceneToCanvasTransform(
+      AffineTransform2D::Combine(
+        originalSceneToCanvas_,
+        AffineTransform2D::CreateOffset(p.GetX() - pivot_.GetX(),
+                                        p.GetY() - pivot_.GetY())));
+  }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Scene2D/PanSceneTracker.h	Fri Apr 26 17:05:14 2019 +0200
@@ -0,0 +1,47 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 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 "IPointerTracker.h"
+#include "Scene2D.h"
+
+namespace OrthancStone
+{
+  class PanSceneTracker : public IPointerTracker
+  {
+  private:
+    Scene2D&           scene_;
+    ScenePoint2D       pivot_;
+    AffineTransform2D  originalSceneToCanvas_;
+    AffineTransform2D  originalCanvasToScene_;
+
+  public:
+    PanSceneTracker(Scene2D& scene,
+                    const PointerEvent& event);
+
+    virtual void Update(const PointerEvent& event);
+
+    virtual void Release()
+    {
+    }
+  };
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Scene2D/PointerEvent.cpp	Fri Apr 26 17:05:14 2019 +0200
@@ -0,0 +1,69 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 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 "PointerEvent.h"
+
+#include <Core/OrthancException.h>
+
+namespace OrthancStone
+{
+  PointerEvent::PointerEvent() :
+    hasAltModifier_(false),
+    hasControlModifier_(false),
+    hasShiftModifier_(false)
+  {
+  }
+
+  
+  ScenePoint2D PointerEvent::GetMainPosition() const
+  {
+    if (positions_.empty())
+    {
+      return ScenePoint2D(0, 0);
+    }
+    else
+    {
+      return positions_[0];
+    }
+  }
+    
+
+  // Add the center of the pixel
+  void PointerEvent::AddIntegerPosition(int x,
+                                        int y)
+  {
+    AddPosition(static_cast<double>(x) + 0.5,
+                static_cast<double>(y) + 0.5);
+  }
+    
+    
+  ScenePoint2D PointerEvent::GetPosition(size_t index) const
+  {
+    if (index < positions_.size())
+    {
+      return positions_[index];
+    }
+    else
+    {
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
+    }
+  }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Scene2D/PointerEvent.h	Fri Apr 26 17:05:14 2019 +0200
@@ -0,0 +1,91 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 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 "ScenePoint2D.h"
+
+#include <boost/noncopyable.hpp>
+#include <stdint.h>
+
+namespace OrthancStone
+{
+  class PointerEvent : public boost::noncopyable
+  {
+  private:
+    std::vector<ScenePoint2D>  positions_;
+    bool                       hasAltModifier_;
+    bool                       hasControlModifier_;
+    bool                       hasShiftModifier_;
+
+  public:
+    PointerEvent();
+
+    ScenePoint2D GetMainPosition() const;
+    
+    void AddPosition(double x,
+                     double y)
+    {
+      positions_.push_back(ScenePoint2D(x, y));
+    }
+
+    // Add the center of the pixel
+    void AddIntegerPosition(int x,
+                            int y);
+    
+    size_t GetPositionsCount() const
+    {
+      return positions_.size();
+    }
+    
+    ScenePoint2D GetPosition(size_t index) const;
+
+    void SetAltModifier(bool value)
+    {
+      hasAltModifier_ = value;
+    }
+
+    bool HasAltModifier() const
+    {
+      return hasAltModifier_;
+    }
+
+    void SetControlModifier(bool value)
+    {
+      hasControlModifier_ = value;
+    }
+
+    bool HasControlModifier() const
+    {
+      return hasControlModifier_;
+    }
+
+    void SetShiftModifier(bool value)
+    {
+      hasShiftModifier_ = value;
+    }
+
+    bool HasShiftModifier() const
+    {
+      return hasShiftModifier_;
+    }
+  };
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Scene2D/RotateSceneTracker.cpp	Fri Apr 26 17:05:14 2019 +0200
@@ -0,0 +1,64 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 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 "RotateSceneTracker.h"
+
+namespace OrthancStone
+{
+  RotateSceneTracker::RotateSceneTracker(Scene2D& scene,
+                                         const PointerEvent& event,
+                                         unsigned int canvasWidth,
+                                         unsigned int canvasHeight) :
+    scene_(scene),
+    click_(event.GetMainPosition()),
+    aligner_(scene, click_, canvasWidth, canvasHeight),
+    isFirst_(true),
+    originalSceneToCanvas_(scene.GetSceneToCanvasTransform())
+  {
+  }
+
+
+  void RotateSceneTracker::Update(const PointerEvent& event)
+  {
+    ScenePoint2D p = event.GetMainPosition();
+    double dx = p.GetX() - click_.GetX();
+    double dy = p.GetY() - click_.GetY();
+
+    if (std::abs(dx) > 5.0 || 
+        std::abs(dy) > 5.0)
+    {
+      double a = atan2(dy, dx);
+
+      if (isFirst_)
+      {
+        referenceAngle_ = a;
+        isFirst_ = false;
+      }
+
+      scene_.SetSceneToCanvasTransform(
+        AffineTransform2D::Combine(
+          AffineTransform2D::CreateRotation(a - referenceAngle_),
+          originalSceneToCanvas_));
+      
+      aligner_.Apply();
+    }
+  }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Scene2D/RotateSceneTracker.h	Fri Apr 26 17:05:14 2019 +0200
@@ -0,0 +1,51 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 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 "IPointerTracker.h"
+#include "Internals/FixedPointAligner.h"
+
+namespace OrthancStone
+{
+  class RotateSceneTracker : public IPointerTracker
+  {
+  private:
+    Scene2D&                      scene_;
+    ScenePoint2D                  click_;
+    Internals::FixedPointAligner  aligner_;
+    double                        referenceAngle_;
+    bool                          isFirst_;
+    AffineTransform2D             originalSceneToCanvas_;
+
+  public:
+    RotateSceneTracker(Scene2D& scene,
+                       const PointerEvent& event,
+                       unsigned int canvasWidth,
+                       unsigned int canvasHeight);
+
+    virtual void Update(const PointerEvent& event);
+
+    virtual void Release()
+    {
+    }
+  };
+}
--- a/Framework/Scene2D/ScenePoint2D.h	Fri Apr 26 15:11:11 2019 +0200
+++ b/Framework/Scene2D/ScenePoint2D.h	Fri Apr 26 17:05:14 2019 +0200
@@ -33,6 +33,12 @@
     double  y_;
 
   public:
+    ScenePoint2D() :
+      x_(0),
+      y_(0)
+    {
+    }
+
     ScenePoint2D(double x,
                  double y) :
       x_(x),
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Scene2D/ZoomSceneTracker.cpp	Fri Apr 26 17:05:14 2019 +0200
@@ -0,0 +1,82 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 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 "ZoomSceneTracker.h"
+
+namespace OrthancStone
+{
+  ZoomSceneTracker::ZoomSceneTracker(Scene2D& scene,
+                                     const PointerEvent& event,
+                                     unsigned int canvasWidth,
+                                     unsigned int canvasHeight) :
+    scene_(scene),
+    clickY_(event.GetMainPosition().GetY()),
+    aligner_(scene, event.GetMainPosition(), canvasWidth, canvasHeight),
+    originalSceneToCanvas_(scene.GetSceneToCanvasTransform())
+  {
+    if (canvasHeight <= 3)
+    {
+      active_ = false;
+    }
+    else
+    {
+      normalization_ = 1.0 / static_cast<double>(canvasHeight - 1);
+      active_ = true;
+    }
+  }
+  
+
+  void ZoomSceneTracker::Update(const PointerEvent& event)
+  {
+    static const double MIN_ZOOM = -4;
+    static const double MAX_ZOOM = 4;
+      
+    if (active_)
+    {
+      double y = event.GetMainPosition().GetY();
+      double dy = static_cast<double>(y - clickY_) * normalization_;  // In the range [-1,1]
+      double z;
+
+      // Linear interpolation from [-1, 1] to [MIN_ZOOM, MAX_ZOOM]
+      if (dy < -1.0)
+      {
+        z = MIN_ZOOM;
+      }
+      else if (dy > 1.0)
+      {
+        z = MAX_ZOOM;
+      }
+      else
+      {
+        z = MIN_ZOOM + (MAX_ZOOM - MIN_ZOOM) * (dy + 1.0) / 2.0;
+      }
+
+      double zoom = pow(2.0, z);
+
+      scene_.SetSceneToCanvasTransform(
+        AffineTransform2D::Combine(
+          AffineTransform2D::CreateScaling(zoom, zoom),
+          originalSceneToCanvas_));
+
+      aligner_.Apply();
+    }
+  }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Scene2D/ZoomSceneTracker.h	Fri Apr 26 17:05:14 2019 +0200
@@ -0,0 +1,51 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 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 "IPointerTracker.h"
+#include "Internals/FixedPointAligner.h"
+
+namespace OrthancStone
+{
+  class ZoomSceneTracker : public IPointerTracker
+  {
+  private:
+    Scene2D&                      scene_;
+    double                        clickY_;
+    bool                          active_;
+    double                        normalization_;
+    Internals::FixedPointAligner  aligner_;
+    AffineTransform2D             originalSceneToCanvas_;
+
+  public:
+    ZoomSceneTracker(Scene2D& scene,
+                     const PointerEvent& event,
+                     unsigned int canvasWidth,
+                     unsigned int canvasHeight);
+
+    virtual void Update(const PointerEvent& event);
+
+    virtual void Release()
+    {
+    }
+  };
+}
--- a/Framework/Viewport/IMouseTracker.h	Fri Apr 26 15:11:11 2019 +0200
+++ b/Framework/Viewport/IMouseTracker.h	Fri Apr 26 17:05:14 2019 +0200
@@ -62,7 +62,5 @@
     virtual void MouseMove(int x, 
                            int y,
                            const std::vector<Touch>& displayTouches) = 0;
-
-    virtual bool IsTouchTracker() const {return false;}
   };
 }
--- a/Resources/CMake/OrthancStoneConfiguration.cmake	Fri Apr 26 15:11:11 2019 +0200
+++ b/Resources/CMake/OrthancStoneConfiguration.cmake	Fri Apr 26 17:05:14 2019 +0200
@@ -262,10 +262,15 @@
   ${ORTHANC_STONE_ROOT}/Framework/Scene2D/InfoPanelSceneLayer.cpp
   ${ORTHANC_STONE_ROOT}/Framework/Scene2D/Internals/CairoPolylineRenderer.cpp
   ${ORTHANC_STONE_ROOT}/Framework/Scene2D/Internals/CompositorHelper.cpp
+  ${ORTHANC_STONE_ROOT}/Framework/Scene2D/Internals/FixedPointAligner.cpp
+  ${ORTHANC_STONE_ROOT}/Framework/Scene2D/PanSceneTracker.cpp
+  ${ORTHANC_STONE_ROOT}/Framework/Scene2D/PointerEvent.cpp
   ${ORTHANC_STONE_ROOT}/Framework/Scene2D/PolylineSceneLayer.cpp
+  ${ORTHANC_STONE_ROOT}/Framework/Scene2D/RotateSceneTracker.cpp
   ${ORTHANC_STONE_ROOT}/Framework/Scene2D/Scene2D.cpp
   ${ORTHANC_STONE_ROOT}/Framework/Scene2D/TextSceneLayer.cpp
   ${ORTHANC_STONE_ROOT}/Framework/Scene2D/TextureBaseSceneLayer.cpp
+  ${ORTHANC_STONE_ROOT}/Framework/Scene2D/ZoomSceneTracker.cpp
 
   ${ORTHANC_STONE_ROOT}/Framework/Fonts/FontRenderer.cpp
   ${ORTHANC_STONE_ROOT}/Framework/Fonts/Glyph.cpp