VtkGeoImageSource.h

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// SPDX-FileCopyrightText: Copyright (c) OpenGeoSys Community (opengeosys.org)
// SPDX-License-Identifier: BSD-3-Clause
 
#pragma once
 
#include <vtkSimpleImageToImageFilter.h>
 
#include <optional>
 
#include "GeoLib/Raster.h"
#include "VtkAlgorithmProperties.h"
 
namespace GeoLib
{
class Raster;
}
 
class QString;
class QPointF;
class QImage;
class vtkQImageToImageSource;
class vtkImageShiftScale;
class vtkImageData;

class VtkGeoImageSource : public vtkSimpleImageToImageFilter, public VtkAlgorithmProperties
{
public:
    static VtkGeoImageSource* New();
 
    vtkTypeMacro(VtkGeoImageSource, vtkSimpleImageToImageFilter);

    void PrintSelf(ostream& os, vtkIndent indent) override;
 
    VtkGeoImageSource(const VtkGeoImageSource&) = delete;
    void operator=(const VtkGeoImageSource&) = delete;

    vtkImageData* getImageData();

    bool readImage(const QString &filename);

    void setImage(vtkImageAlgorithm* image, const QString& name);
 
    void SetUserProperty(QString name, QVariant value) override;
 
    // @brief Converts the source object into a Raster object
    static std::optional<GeoLib::Raster> convertToRaster(
        VtkGeoImageSource* const source);
 
protected:
    VtkGeoImageSource();

    ~VtkGeoImageSource() override;

    void SimpleExecute(vtkImageData* input, vtkImageData* output) override;
 
private:
    vtkImageAlgorithm* _imageSource{nullptr};
};