albaGUIHistogramWidget.h

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/*=========================================================================
 
 Program: ALBA (Agile Library for Biomedical Applications)
 Module: albaGUIHistogramWidget
 Authors: Paolo Quadrani, Gianluigi Crimi
 
 Copyright (c) BIC
 All rights reserved. See Copyright.txt or
 
 
 This software is distributed WITHOUT ANY WARRANTY; without even
 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 PURPOSE.  See the above copyright notice for more information.
 
=========================================================================*/
 
#ifndef __albaGUIHistogramWidget_H__
#define __albaGUIHistogramWidget_H__
 
 
//----------------------------------------------------------------------------
// Include:
//----------------------------------------------------------------------------
#include "albaGUIPanel.h"
#include "albaDecl.h"
#include "albaEvent.h"
 
#include "vtkALBAHistogram.h"
 
//----------------------------------------------------------------------------
// forward refs
//----------------------------------------------------------------------------
class albaRWI;
class vtkDataArray;
class albaGUI;
class albaVME;
class vtkImageData;
class albaGUIRangeSlider;
class albaGUILutSlider;
class vtkLookupTable;
 
//----------------------------------------------------------------------------
class ALBA_EXPORT albaGUIHistogramWidget: public albaGUIPanel, public albaObserver
{
public:
  albaGUIHistogramWidget(wxWindow* parent, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition, 
           const wxSize& size = wxSize(400,300), long style = wxTAB_TRAVERSAL /*| wxSUNKEN_BORDER */, bool showThresholds = false);
  virtual ~albaGUIHistogramWidget();
 
  virtual void SetListener(albaObserver *Listener) {m_Listener = Listener;};
  
  void OnEvent(albaEventBase *event);
 
  ALBA_ID_DEC(RANGE_MODIFIED);
 
  enum HISTOGRAM_WIDGET_ID
  {
      ID_LOGSCALE = MINID,
      ID_NUMBER_OF_BIN,
    ID_RANGE_SLICER,
    ID_SLIDER_THRESHOLD,
      ID_EXPORT_DATA,
      ID_EXPORT_STATS,
  };
 
   void SetHistogramData(vtkImageData *histogram);
 
   void SetData(vtkDataArray *data, albaVME *vme = NULL);
 
  void LogarithmicScale(int enable = 1);
 
  void LogarithmicScaleOn() {LogarithmicScale();};
 
  void LogarithmicScaleOff() {LogarithmicScale(0);};
 
  bool IsLogarithmicScale() {return m_LogHistogramFlag != 0;};
 
    
  void ShowLines(int value=1);
 
  void ShowText(int value=1){m_ShowText=value;};
  
  void SetLut(vtkLookupTable *lut);
 
  albaGUI *GetGui();
 
  void GetThresholds(double *lower, double *upper);
 
  /* Get the number of samples in the bin associated to the x coordinate */
  long int GetHistogramValue(int x, int y);
 
  /* Get the scalar vale of the histogram associated to the x coordinate */
  double GetHistogramScalarValue(int x, int y);
  
  void UpdateLines(int min,int max);
protected:
 
  void CreateGui();
 
  void UpdateGui();
 
  void EnableWidgets(bool enable = true);
 
  albaObserver   *m_Listener;
  int            m_HisctogramValue;
  int            m_NumberOfBins;
  int            m_LogHistogramFlag;
  double         m_Threshold[2];
  int            m_ShowText;
 
  albaGUI        *m_Gui;
 
  albaGUIRangeSlider *m_Slider;
  albaGUILutSlider *m_SliderThresholds;
  double m_SelectedRange[2];
  
  vtkLookupTable*m_Lut;
  vtkDataArray  *m_Data;
   albaVME *m_VME;
  albaRWI        *m_HistogramRWI;
  vtkALBAHistogram  *m_Histogram;
   vtkImageData  *m_HistogramData;
private:
   void ExportData();
   void ExportStats();
};
#endif