PSQt/include/WdgSpecHist.h

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#ifndef PSQT_WDGSPECHIST_H
#define PSQT_WDGSPECHIST_H

#include "ndarray/ndarray.h"
#include <stdint.h> // uint8_t, uint32_t, etc.

#include <PSQt/GUAxes.h>
#include <PSQt/WdgColorBar.h>

#include <QWidget>

//#include <Qt>
#include <QtGui>
#include <QtCore>


namespace PSQt {

/// @addtogroup PSQt PSQt

/**
 *  @ingroup PSQt
 * 
 *  @brief Widget to display spectral historgam for image.
 * 
 *  @code
 *  public slots:
 *    void onSHistIsFilled(float*, const float&, const float&, const unsigned&);
 *  @endcode
 * 
 *  Constructor creates a widget with default frame of axes.
 *  Actual axes scale and histogram show up through the call to slot onSHistIsFilled(...).
 *
 *  This software was developed for the LCLS project.  If you use all or 
 *  part of it, please give an appropriate acknowledgment.
 *
 *  @see GUView
 *
 *  @version $Id: WdgSpecHist.h 9841 2015-03-26 18:35:44Z dubrovin@SLAC.STANFORD.EDU $
 *
 *  @author Mikhail Dubrovin
 */

class WdgSpecHist : public QWidget
{
 Q_OBJECT // macro is needed for connection of signals and slots

  public:
    WdgSpecHist(QWidget *parent = 0); 
    virtual ~WdgSpecHist();

    PSQt::WdgColorBar* colorBar() { return m_cbar; };
    PSQt::GUAxes* axes() { return m_axes; };

  public slots:
  /**
   *  @brief Public slot for histogram update. 
   *  
   *  @param[in] - float* - pointer to the histogram array
   *  @param[in] - const float& - low limit for histogram range
   *  @param[in] - const float& - upper limit for histogram range
   *  @param[in] - const unsigned& - number of bins
   */ 
    void onSHistIsFilled(float*, const float&, const float&, const unsigned&);

  private:
    inline const char* _name_(){return "WdgSpecHist";}

    QHBoxLayout* m_hbox;
    QVBoxLayout* m_vbox;
    PSQt::GUAxes* m_axes;
    PSQt::WdgColorBar* m_cbar;
    QGraphicsPathItem* m_path_item;
};

} // namespace PSQt

#endif // PSQT_WDGSPECHIST_H

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