cxTexture3DSlicerProxy.h

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.

Copyright (c) 2008-2014, SINTEF Department of Medical Technology
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#ifndef CXTEXTURE3DSLICERPROXY_H_
#define CXTEXTURE3DSLICERPROXY_H_

#include "cxResourceVisualizationExport.h"

#include "cxRepImpl.h"
#include <vector>
#include "cxTransform3D.h"
#include "cxBoundingBox3D.h"

#include "vtkForwardDeclarations.h"
#include "cxForwardDeclarations.h"
#include "cxConfig.h"
#include "cxShaderCallback.h"

typedef vtkSmartPointer<class vtkPolyDataAlgorithm> vtkPolyDataAlgorithmPtr;
typedef vtkSmartPointer<class vtkOpenGLPolyDataMapper> vtkOpenGLPolyDataMapperPtr;

//---------------------------------------------------------
namespace cx
{

typedef vtkSmartPointer<class TextureSlicePainter> TextureSlicePainterPtr;
typedef boost::shared_ptr<class Texture3DSlicerProxy> Texture3DSlicerProxyPtr;

class cxResourceVisualization_EXPORT Texture3DSlicerProxy: public QObject
{
        Q_OBJECT
public:
        static Texture3DSlicerProxyPtr New(SharedOpenGLContextPtr context);

        virtual ~Texture3DSlicerProxy() {}
        virtual void setShaderPath(QString shaderFile) {}
        virtual void setViewportData(const Transform3D& vpMs, const DoubleBoundingBox3D& vp) {}
        virtual void setImages(std::vector<ImagePtr> images) {}
        virtual std::vector<ImagePtr> getImages()
        {
                return std::vector<ImagePtr>();
        }
        virtual void setSliceProxy(SliceProxyPtr slicer) {}
        virtual SliceProxyPtr getSliceProxy()
        {
                return SliceProxyPtr();
        }
        virtual void setTargetSpaceToR() {}
        virtual vtkActorPtr getActor()
        {
                return vtkActorPtr();
        }
        virtual void setRenderWindow(vtkRenderWindowPtr window) {};

        static bool isSupported(vtkRenderWindowPtr window)
        {
                return true;
        };

protected:
        Texture3DSlicerProxy() {};
};

//--------------------------------------------------------------------

class cxResourceVisualization_EXPORT Texture3DSlicerProxyImpl: public Texture3DSlicerProxy
{
        Q_OBJECT

public:
        static Texture3DSlicerProxyPtr New(SharedOpenGLContextPtr context);

        virtual ~Texture3DSlicerProxyImpl();

        void setViewportData(const Transform3D& vpMs, const DoubleBoundingBox3D& vp); // DEPRECATED: use zoomfactor in View and the object will auto-update
        void setImages(std::vector<ImagePtr> images);
        void setSliceProxy(SliceProxyPtr slicer);
        SliceProxyPtr getSliceProxy();
        void setTargetSpaceToR(); 
        vtkActorPtr getActor();
        std::vector<ImagePtr> getImages();
        virtual void setRenderWindow(vtkRenderWindowPtr window);

protected slots:
        void transformChangedSlot();
        void transferFunctionChangedSlot();
        void imageChanged();

protected:
        Texture3DSlicerProxyImpl(SharedOpenGLContextPtr context);
        void createGeometryPlane(Vector3D point1_s, Vector3D point2_s, Vector3D origin_s);

private:
        void resetGeometryPlane();

        void updateAndUploadImages(std::vector<ImagePtr> new_images_raw);
        void updateAndUploadCoordinates();
        void updateAndUploadColorAttribute();

        void uploadImagesToSharedContext(std::vector<ImagePtr> images, SharedOpenGLContextPtr sharedOpenGLContext, ShaderCallbackPtr shaderCallback) const;
        void uploadTextureCoordinatesToSharedContext(QString image_uid, vtkFloatArrayPtr textureCoordinates, SharedOpenGLContextPtr sharedOpenGLContext, ShaderCallbackPtr shaderCallback) const;
        void uploadColorAttributesToSharedContext(QString imageUid, float llr, vtkLookupTablePtr lut, float window, float level, float alpha, SharedOpenGLContextPtr sharedOpenGLContext, ShaderCallbackPtr shaderCallback) const;

        QString getTCoordName(int index);
        void setColorAttributes(int i);
        std::vector<ImagePtr> convertToUnsigned(std::vector<ImagePtr> images_raw);

        bool isNewInputImages(std::vector<ImagePtr> images_raw);

        QString generateTextureCoordinateName(QString imageUid) const;
        void generateAndSetShaders();


        SharedOpenGLContextPtr mSharedOpenGLContext;
        ShaderCallbackPtr mShaderCallback;
        QString mUid;

        DoubleBoundingBox3D mBB_s;
        std::vector<ImagePtr> mImages;
        std::vector<ImagePtr> mRawImages;
        SliceProxyPtr mSliceProxy;
        bool mTargetSpaceIsR;

        vtkActorPtr mActor;
        vtkPolyDataPtr mPolyData;
        vtkPlaneSourcePtr mPlaneSource;
        vtkPolyDataAlgorithmPtr mPolyDataAlgorithm;
        vtkOpenGLPolyDataMapperPtr mOpenGLPolyDataMapper;
        vtkRenderWindowPtr mCurrentRenderWindow;

        vtkFloatArrayPtr mTextureCoordinates;

};
//--------------------------------------------------------------------

}//namespace cx

#endif /* CXTEXTURE3DSLICERPROXY_H_ */