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TransferFunctionEditorWindow.h

#if !defined(AFX_TRANSFERFUNCTIONEDITORWINDOW_H__AF86700E_3536_4440_AB2D_79855D9FEA4A__INCLUDED_)
#define AFX_TRANSFERFUNCTIONEDITORWINDOW_H__AF86700E_3536_4440_AB2D_79855D9FEA4A__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
// TransferFunctionEditorWindow.h : header file
//

#include "TransferFunction.h"

#define TFEDITOR_GRADIENT_TRIANGLE_SIZE 5

// TransferFunctionEditorWindow frame

class TransferFunctionEditorWindow : public CFrameWnd
{
/*
        DECLARE_DYNCREATE(TransferFunctionEditorWindow)
protected: 
        TransferFunctionEditorWindow();           // protected constructor used by dynamic creation
*/
public:
        TransferFunctionEditorWindow();           // ordinary constructor

// Attributes
public:
        HDC m_hgldc;              // GDI Device Context
        HGLRC m_hglRC;          // Rendering Context

// Operations
public:
        void SetHistogramDataIndex(int index);

        virtual BOOL PreCreateWindow( CREATESTRUCT& cs );
        BOOL SetPixelformat(HDC hdc); 
        int InitGL(void);
        void ReSizeGLScene(int width, int height);
        int DrawGLScene(void);

    TransferFunction *tf;
// Overrides
        // ClassWizard generated virtual function overrides
        //{{AFX_VIRTUAL(TransferFunctionEditorWindow)
        //}}AFX_VIRTUAL

// Implementation
protected:
        virtual ~TransferFunctionEditorWindow();

  // Generated message map functions
        //{{AFX_MSG(TransferFunctionEditorWindow)
          afx_msg void OnPaint();
          afx_msg int  OnCreate(LPCREATESTRUCT lpCreateStruct);
          afx_msg void OnSize(UINT nType, int cx, int cy );
          afx_msg BOOL OnEraseBkgnd( CDC* pDC );
          afx_msg void OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags);
          afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
          afx_msg void OnLButtonUp(UINT nFlags, CPoint point);
          afx_msg void OnRButtonDown(UINT nFlags, CPoint point);
          afx_msg void OnRButtonUp(UINT nFlags, CPoint point);
          afx_msg void OnMouseMove( UINT nFlags, CPoint point );
        afx_msg void OnTransferfunctionLoad();
        afx_msg void OnTransferfunctionSave();
        //}}AFX_MSG
        DECLARE_MESSAGE_MAP()
private:
    CMenu menu;
        CPoint dragStart;
        TransferPoint* dragPoint;
        TransferPoint* findNearestTFPoint(CPoint point);

        int drawTransferFunction();
        int drawHistogram();

    CFlowVisApp* m_App;
        int m_windowWidth;
        int m_windowHeight;
    bool m_draggingPosition;
        double histogramColor[3];
        double histogramBGColor[3];
    int m_HistogramDataIndex;
};


//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_TRANSFERFUNCTIONEDITORWINDOW_H__AF86700E_3536_4440_AB2D_79855D9FEA4A__INCLUDED_)

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