HistogramDialog.h

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#ifndef __HISTOGRAMSDIALOG__
#define __HISTOGRAMSDIALOG__


// ----------------------------------------------------------------------------
// wx headers inclusion.
// For compilers that support precompilation, includes <wx/wx.h>.
// ----------------------------------------------------------------------------
#include <wx/wxprec.h>
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include <wx/wx.h>
#endif

 //---------------------
 // Includes
 //----------------------
 #include "HistogramWidget.h"
 #include "vtkImageData.h"      
 //#include <vector>
 #include <vtkPiecewiseFunction.h>
 #include <vtkColorTransferFunction.h>
 #include <vtkVolumeRayCastMapper.h>
 #include <vtkVolume.h>
 #include "../wxMPRWidget.h"

class HistogramDialog:public wxDialog
{
public:
        /*
         Constructor
        */
        HistogramDialog(wxWindow *parent,wxString title,vtkImageData* imageData,int type);
        /*
         Constructor
        */
        HistogramDialog(wxWindow *parent,wxString title);
        /*
         Methods
        */
        /*
                get number of points of the transference function
        */
        int getSizeTransferenceFunction();
        /*
                get number of points of the barColor
        */
        int getSizeBarColor();
        /*
                get a point of the transference function
        */
        void getTransferenceFunctionPoint(int index,int& x,int& y);
        /*
                get a  color int the bqr color
        */
        void getDataBarColorPoint(int index,int&x, int& red,int& green,int& blue);
        /*
                get a point of the Histogram
                given the grey value
        */
        int getHistogramPoint(int gValue);

        //--------------------
        // bar Information
        //---------------------
        /*
         Get the porcentage of the positions of 
         the min,max and actual in the bar range
        */
        float getMaxShowedPorcentage();
        float getMinShowedPorcentage(); 
        float getActualShowedPorcentage();

        //---------------------------------------
        // setting data in transferences function
        // and in bar color
        //----------------------------------------
        /*
          Adds a point to the transference function
        */
        bool addPointToTransferenceFunction(double x, double y);
        /*
                add a color point to the histogram
                @param x the level of grey to which the color is assigned
                @param red the level of red for the color
                @param green the level of red for the color
                @param blue the level of red for the color
        */
        bool addColorPoint(double x,int red,int green, int blue);
        //------------------------
        //Erase data
        //------------------------
        
        /*
         Erase all the points that are in the transference function
        */
        void erasePointsTransferenceFunction();
        void eraseColorPoints();
        //-------------------
        // Getter and setters
        //-------------------

        void setTransferenceFunctionHasPoints(bool hasPoints);
        void setTransferenceFunctionHasColor(bool hasColorPoints);
        
        //returns if the user has pressed refresh       
        
        bool getRefreshed();
        void setCTF(vtkColorTransferFunction* cf);
        void setTF(vtkPiecewiseFunction* tf);
        void setVolumeMapper(vtkVolumeRayCastMapper* volMapper);
        void setVolume(vtkVolume* vol);
        void setMPR3Dview(wxVtkMPR3DView *wxvtkmpr3Dview1);
        void setClipping3DView(wxVtkClipping3DView *wxvtkclipping3Dview1);

        //--------------------
        // plotter Information
        //---------------------
        void updatePlotter();
        
        //-----------------------
        //Handling events
        //-----------------------

        void OnSaveData(wxCommandEvent& event);
        void OnLoadData(wxCommandEvent& event);
        void OnRefreshBtn(wxCommandEvent& event);

        void initializeHistogram(vtkImageData* img);
        void GetValuesPointsFunction(std::vector<double>& greylevel,std::vector<double>& value);

        void GetValuesColorPointsFunction(std::vector<double>& greylevel,
                                                                        std::vector<double>& red,
                                                                        std::vector<double>& green,
                                                                        std::vector<double>& blue);
        void SetFunctions(vtkPiecewiseFunction* _opac, vtkColorTransferFunction* _color);
private:
        /*
        Histogram Widget
        */
        HistogramWidget*  histogramW;

        /*
         ok Button
        */
        wxButton                *okBtn;
        /*
         cancel Button
        */
        wxButton                *cancelBtn;
        /*
         save Button
        */
        wxButton                *saveDataBtn;   
        /*
        Load Button
        */
        wxButton                *loadDataBtn;
        /*
        Refresh Button
        */
        wxButton                *refreshBtn;

        
        
        // the user had pressed refresh
        bool refreshed;
        
        vtkColorTransferFunction                        *_ctfun;
        vtkPiecewiseFunction                            *_tfun;
        vtkVolumeRayCastMapper                          *volumeMapper; 
        vtkVolume                                                       *newvol;

        //things to refresh
        wxVtkMPR3DView                                          *wxvtkmpr3Dview;
        wxVtkClipping3DView                                     *wxvtkclipping3Dview;
        
        
//      DECLARE_CLASS(HistogramDialog);
        // any class wishing to process wxWindows events must use this macro
        //DECLARE_EVENT_TABLE()
};

#endif

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