ddtCPLImageGraphicsItem.hpp

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// @copyright
// (c) Copyright ESO 2020
// All Rights Reserved
// ESO (eso.org) is an Intergovernmental Organization, and therefore special
// legal conditions apply.
//
// @file ddtCPLImageGraphicsItem.hpp
// @brief DDT Widgets. Class for CPL Image Graphics Items.
//
// Class derived from QGraphicsItem. Allows to render a CPL image as a
// QGraphicsItem.
//
// @author Carsten Mannel, CGI
// @since  2020/02/28
//
 
#ifndef DDT_DATAVISUALISATION_DDTWIDGETS_CPL_IMAGE_GRAPHICSITEM_HPP
#define DDT_DATAVISUALISATION_DDTWIDGETS_CPL_IMAGE_GRAPHICSITEM_HPP
 
#include "ddt/ddtImageGraphicsItem.hpp"
#include "ddt/imageColor.hpp"
 
#include <cpl.h>
 
class DdtCPLImageGraphicsItem : public DdtImageGraphicsItem {
 public:
  DdtCPLImageGraphicsItem();
  explicit DdtCPLImageGraphicsItem(cpl_image* const in_image);
 
  DdtCPLImageGraphicsItem(cpl_image* const in_image,
                          ddt::colorMap_t* const color_map,
                          ddt::scalingLut_t* scaling_lut);
 
  DdtCPLImageGraphicsItem(cpl_image* const in_image,
                          ddt::colorMapARGB_t* const color_map,
                          ddt::scalingLut_t* scaling_lut);
 
  virtual ~DdtCPLImageGraphicsItem();
 
  QRectF boundingRect() const;
  void paint(QPainter* painter, const QStyleOptionGraphicsItem* option,
             QWidget* widget);
 
  virtual QImage* GetImage();
 
  enum { ITEM_TYPE = 66036 };
 
  int type() const;
 
 protected:
  cpl_image* cimage;
  QImage* qimage;
 
 private:
  int width;
  int height;
 
  void Init();
 
  void loadImageGrayColor(cpl_image* const in_image);
 
  void loadImageGrayColorInt(cpl_image* const in_image);
 
  void loadImageGrayColorFloat(cpl_image* const in_image);
 
  void loadImageGrayColorDouble(cpl_image* const in_image);
 
  void loadImageColor(const cpl_image* const in_image,
                      ddt::colorMap_t* color_map,
                      ddt::scalingLut_t* scaling_lut);
 
  void loadImageColor(const cpl_image* const in_image,
                      ddt::colorMapARGB_t* const color_map,
                      ddt::scalingLut_t* const scaling_lut);
 
  void loadImageColorInt(cpl_image* const in_image,
                         ddt::colorMap_t* const color_map,
                         ddt::scalingLut_t* const scaling_lut);
 
  void loadImageColorInt(cpl_image* const in_image,
                         ddt::colorMapARGB_t* const color_map,
                         ddt::scalingLut_t* const scaling_lut);
 
  void loadImageColorFloat(cpl_image* const in_image,
                           ddt::colorMap_t* const color_map,
                           ddt::scalingLut_t* const scaling_lut);
 
  void loadImageColorFloat(cpl_image* const in_image,
                           ddt::colorMapARGB_t* const color_map,
                           ddt::scalingLut_t* const scaling_lut);
 
  void loadImageColorDouble(cpl_image* const in_image,
                            ddt::colorMap_t* const color_map,
                            ddt::scalingLut_t* const scaling_lut);
 
  void loadImageColorDouble(cpl_image* const in_image,
                            ddt::colorMapARGB_t* const color_map,
                            ddt::scalingLut_t* const scaling_lut);
 
  std::vector<unsigned int> getRgbVectorGray() const;
 
  std::vector<unsigned int> getRgbVectorColor(
      ddt::colorMap_t* const color_map) const;
 
  void createImageAndPixvalRange(const cpl_image* const in_image,
                                 double* const min_pixval,
                                 double* const pixval_range);
 
  void createImageAndScalingFactors(const cpl_image* const in_image,
                                    const ddt::scalingLut_t* const scaling_lut,
                                    double* const offset, double* const factor);
 
  void createImage(const cpl_image* const in_image);
};
 
#endif  // DDT_DATAVISUALISATION_DDTWIDGETS_CPL_IMAGE_GRAPHICSITEM_HPP