ddtColourmapWidget.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 ddtColourmapWdiget.hpp
// @brief DDT Widgets. Class for the DDT Colourmap Widget.
//
// Class for the Colourmap Widget. The widget will display a colourbar for the
// given colourmap.
//
// @author Carsten Mannel, CGI
// @since  2020/10/09
//
 
#ifndef DDT_DATAVISUALISATION_DDTWIDGETS_COLOURMAPWIDGET_HPP
#define DDT_DATAVISUALISATION_DDTWIDGETS_COLOURMAPWIDGET_HPP
 
#include <QtUiPlugin/QDesignerExportWidget>
 
#include "ddt/imageHandling.hpp"
#include "ddt/widgets/ddtWidget.hpp"
 
class QDESIGNER_WIDGET_EXPORT DdtColourmapWidget : public DdtWidget {
  Q_OBJECT
 
 public:
  explicit DdtColourmapWidget(QWidget* parent = nullptr);
 
  virtual ~DdtColourmapWidget();
 
 protected:
 private:
  QLabel* colourbar_label;
  QLabel* colourscale_label;
 
  void CreateWidget();
  void UpdateColourmap(QVector<QRgb> colourmap);
  void UpdateColourscale(double min_value, double max_value,
                         int scaling_function);
 
  void DrawScale(double min_value, double max_value, QPainter& painter,
                 int scaling_function);
  void DrawScaleLog(double min_value, double max_value, QPainter& painter);
  int CalculateTickPositionLinear(double tick, double min_value, double width,
                                  double maxsize);
  int CalculateTickPositionSqrt(double tick, double min_value, double width,
                                double maxsize);
 
 protected slots:
  void SetCurrentColourmap(QVector<QRgb> colourmap);
 
  void UpdateColourbarAxis(double min_value, double max_value,
                           int scaling_function);
};
 
#endif  // DDT_DATAVISUALISATION_DDTWIDGETS_COLOURMAPWIDGET_HPP