cxCameraStyleForView.h

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.
                 
Copyright (c) SINTEF Department of Medical Technology.
All rights reserved.
                 
CustusX is released under a BSD 3-Clause license.
                 
See Lisence.txt (https://github.com/SINTEFMedtek/CustusX/blob/master/License.txt) for details.
=========================================================================*/
#ifndef CXCameraStyleForViewFORVIEW_H
#define CXCameraStyleForViewFORVIEW_H
 
#include "org_custusx_core_view_Export.h"
 
#include "cxTransform3D.h"
#include "cxForwardDeclarations.h"
#include "cxViewService.h"
#include "cxViewGroupData.h"
#include "cxRegionOfInterestMetric.h"
#include "cxDoubleRange.h"
class QIcon;
class QWidget;
class QMenu;
class QActionGroup;
class vtkInteractorStyle;
 
namespace cx
{
typedef boost::shared_ptr<class ViewportPreRenderListener> ViewportPreRenderListenerPtr;
typedef boost::shared_ptr<class CoreServices> CoreServicesPtr;
 
typedef boost::shared_ptr<class CameraStyleForView> CameraStyleForViewPtr;
using cx::Transform3D;
 
class JitterFilter
{
public:
        JitterFilter();
        double newValue(double value);
private:
        DoubleRange range;
        double currentValue;
};
 
struct CameraInfo
{
        CameraInfo() {}
        explicit CameraInfo(vtkCameraPtr camera);
        double distance() const { return (pos-focus).length(); }
        Vector3D vpn() const { return (pos-focus).normal(); }
 
        Vector3D pos;
        Vector3D focus;
        Vector3D vup;
        double viewAngle; // vtk View angle in DEGREES
};
 
bool similar(const CameraInfo& lhs, const CameraInfo& rhs, double tol=1.0E-6);
 
class org_custusx_core_view_EXPORT CameraStyleForView: public QObject
{
Q_OBJECT
public:
        explicit CameraStyleForView(CoreServicesPtr backend);
        void setView(ViewPtr widget);
 
        void setCameraStyle(CameraStyleData style);
        CameraStyleData getCameraStyle();
 
private slots:
        void setModified();
        void activeToolChangedSlot();
 
private:
        ViewPtr getView() const;
        vtkRendererPtr getRenderer() const;
        vtkCameraPtr getCamera() const;
        ToolRep3DPtr getToolRep() const;
        bool isToolFollowingStyle() const;
        void onPreRender();
        void applyCameraStyle(); 
 
        void connectTool();
        void disconnectTool();
        void viewportChangedSlot();
        RegionOfInterest getROI(QString uid) const;
        void setInteractor(vtkSmartPointer<vtkInteractorStyle> style);
 
        CameraStyleData mStyle; 
        ToolPtr mFollowingTool; 
        ViewportListenerPtr mViewportListener;
        ViewportPreRenderListenerPtr mPreRenderListener;
        bool mBlockCameraUpdate; 
        ViewPtr mView;
        CoreServicesPtr mBackend;
 
//      Vector3D mPreviousZoomCameraPos;
        JitterFilter mZoomJitterFilter;
 
        Vector3D smoothZoomedCameraPosition(Vector3D pos);
        void handleLights();
        CameraInfo viewEntireAutoZoomROI(CameraInfo info);
        void updateCamera(CameraInfo info);
        Vector3D getToolTip_r();
        Transform3D get_rMto();
};
 
} //namespace cx
 
#endif // CXCameraStyleForViewFORVIEW_H