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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkVTKImageImport_h
#define itkVTKImageImport_h
#include "itkImageSource.h"
#include "itkImportImageContainer.h"
#define itkSetMacro2(name, type) \
virtual void Set##name(type _arg) \
{ \
itkDebugMacro("setting " #name " to " << _arg); \
if (this->m_##name != _arg) \
{ \
this->m_##name = _arg; \
this->Modified(); \
} \
}
namespace itk
{
/**
* \class VTKImageImport
* \brief Connect the end of an VTK pipeline to an ITK image pipeline.
*
* VTKImageImport can be used at the beginning of an ITK image pipeline to
* connect with a VTK pipeline that ends with vtkImageExport. Callbacks
* provided by VTKImageImport are registered with vtkImageExport to connect
* the pipeline execution together. Once connected, update requests coming
* through the ITK pipeline are automatically propagated to the VTK pipeline.
*
* Note that the VTK images are assumed to be of 1, 2, or 3 dimensions.
* Scalar value types can be one of: float, double, char, unsigned char,
* short, unsigned short, int, unsigned int, long, unsigned long. The
* images can also have pixel types with more than one component.
*
* \ingroup IOFilters
* \sa VTKImageImport
* \ingroup ITKVTK
*/
template <typename TOutputImage>
class ITK_TEMPLATE_EXPORT VTKImageImport : public ImageSource<TOutputImage>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(VTKImageImport);
/** Standard class type aliases. */
using Self = VTKImageImport;
using Superclass = ImageSource<TOutputImage>;
using Pointer = SmartPointer<Self>;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(VTKImageImport);
/** Convenient type alias from the output image. */
using OutputImageType = TOutputImage;
using OutputImagePointer = typename OutputImageType::Pointer;
using OutputPixelType = typename OutputImageType::PixelType;
using OutputSizeType = typename OutputImageType::SizeType;
using OutputIndexType = typename OutputImageType::IndexType;
using OutputRegionType = typename OutputImageType::RegionType;
/** The output image dimension. */
static constexpr unsigned int OutputImageDimension = OutputImageType::ImageDimension;
/** These are function pointer types for the pipeline connection
* callbacks. */
using UpdateInformationCallbackType = void (*)(void *);
using PipelineModifiedCallbackType = int (*)(void *);
using WholeExtentCallbackType = int * (*)(void *);
using SpacingCallbackType = double * (*)(void *);
using OriginCallbackType = double * (*)(void *);
using DirectionCallbackType = double * (*)(void *);
using ScalarTypeCallbackType = const char * (*)(void *);
using NumberOfComponentsCallbackType = int (*)(void *);
using PropagateUpdateExtentCallbackType = void (*)(void *, int *);
using UpdateDataCallbackType = void (*)(void *);
using DataExtentCallbackType = int * (*)(void *);
using BufferPointerCallbackType = void * (*)(void *);
/** Compatibility for VTK older than 4.4. */
using FloatSpacingCallbackType = float * (*)(void *);
using FloatOriginCallbackType = float * (*)(void *);
/** What to do when receiving UpdateInformation(). */
itkSetMacro(UpdateInformationCallback, UpdateInformationCallbackType);
itkGetConstMacro(UpdateInformationCallback, UpdateInformationCallbackType);
/** What to do when receiving PipelineModified(). */
itkSetMacro(PipelineModifiedCallback, PipelineModifiedCallbackType);
itkGetConstMacro(PipelineModifiedCallback, PipelineModifiedCallbackType);
/** What to do when receiving SetWholeExtent(). */
itkSetMacro(WholeExtentCallback, WholeExtentCallbackType);
itkGetConstMacro(WholeExtentCallback, WholeExtentCallbackType);
/** What to do when receiving SetSpacing(). */
itkSetMacro(SpacingCallback, SpacingCallbackType);
itkGetConstMacro(SpacingCallback, SpacingCallbackType);
itkSetMacro(FloatSpacingCallback, FloatSpacingCallbackType);
itkGetConstMacro(FloatSpacingCallback, FloatSpacingCallbackType);
void
SetSpacingCallback(FloatSpacingCallbackType f)
{
this->SetFloatSpacingCallback(f);
}
/** What to do when receiving SetOrigin(). */
itkSetMacro(OriginCallback, OriginCallbackType);
itkGetConstMacro(OriginCallback, OriginCallbackType);
itkSetMacro(FloatOriginCallback, FloatOriginCallbackType);
itkGetConstMacro(FloatOriginCallback, FloatOriginCallbackType);
void
SetOriginCallback(FloatOriginCallbackType f)
{
this->SetFloatOriginCallback(f);
}
/** What to do when receiving SetDirection(). */
itkSetMacro(DirectionCallback, DirectionCallbackType);
itkGetConstMacro(DirectionCallback, DirectionCallbackType);
/** What to do when receiving UpdateInformation(). */
itkSetMacro(ScalarTypeCallback, ScalarTypeCallbackType);
itkGetConstMacro(ScalarTypeCallback, ScalarTypeCallbackType);
/** What to do when receiving SetNumberOfComponents(). */
itkSetMacro(NumberOfComponentsCallback, NumberOfComponentsCallbackType);
itkGetConstMacro(NumberOfComponentsCallback, NumberOfComponentsCallbackType);
/** What to do when receiving PropagateUpdateExtent(). */
itkSetMacro(PropagateUpdateExtentCallback, PropagateUpdateExtentCallbackType);
itkGetConstMacro(PropagateUpdateExtentCallback, PropagateUpdateExtentCallbackType);
/** What to do when receiving UpdateData(). */
itkSetMacro(UpdateDataCallback, UpdateDataCallbackType);
itkGetConstMacro(UpdateDataCallback, UpdateDataCallbackType);
/** What to do when receiving DataExtent(). */
itkSetMacro(DataExtentCallback, DataExtentCallbackType);
itkGetConstMacro(DataExtentCallback, DataExtentCallbackType);
/** What to do when receiving BufferPointer(). */
itkSetMacro(BufferPointerCallback, BufferPointerCallbackType);
itkGetConstMacro(BufferPointerCallback, BufferPointerCallbackType);
/** Specify callback data. */
itkSetMacro2(CallbackUserData, void *);
itkGetConstMacro(CallbackUserData, void *);
protected:
VTKImageImport();
~VTKImageImport() override = default;
void
PrintSelf(std::ostream & os, Indent indent) const override;
void
PropagateRequestedRegion(DataObject *) override;
void
UpdateOutputInformation() override;
void
GenerateData() override;
void
GenerateOutputInformation() override;
private:
void * m_CallbackUserData{ nullptr };
UpdateInformationCallbackType m_UpdateInformationCallback{ nullptr };
PipelineModifiedCallbackType m_PipelineModifiedCallback{ nullptr };
WholeExtentCallbackType m_WholeExtentCallback{ nullptr };
SpacingCallbackType m_SpacingCallback{ nullptr };
FloatSpacingCallbackType m_FloatSpacingCallback{ nullptr };
OriginCallbackType m_OriginCallback{ nullptr };
FloatOriginCallbackType m_FloatOriginCallback{ nullptr };
DirectionCallbackType m_DirectionCallback{ nullptr };
ScalarTypeCallbackType m_ScalarTypeCallback{ nullptr };
NumberOfComponentsCallbackType m_NumberOfComponentsCallback{ nullptr };
PropagateUpdateExtentCallbackType m_PropagateUpdateExtentCallback{ nullptr };
UpdateDataCallbackType m_UpdateDataCallback{ nullptr };
DataExtentCallbackType m_DataExtentCallback{ nullptr };
BufferPointerCallbackType m_BufferPointerCallback{ nullptr };
std::string m_ScalarTypeName{};
};
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkVTKImageImport.hxx"
#endif
#endif // itkVTKImageImport_h
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