www.pudn.com > waveinFFTdemo.rar > SpectrumGraph.h

#if !defined(AFX_SPECTRUMGRAPH_H__D00FAB3B_95DC_433A_B106_D507409E1A0F__INCLUDED_) 
#define AFX_SPECTRUMGRAPH_H__D00FAB3B_95DC_433A_B106_D507409E1A0F__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
// SpectrumGraph.h : header file 
// 
 
///////////////////////////////////////////////////////////////////////////// 
// CFrequencyGraph window 
enum FrequencyGraphType{ FG_MICRO_EQ, FG_EQ_CHANNEL, FG_SPECTRUM, FG_OSCILLOSCOPE, FG_PEAK, FG_PEAK2, FG_PIXELGRAM }; 
 
class CFrequencyGraph : public CWnd 
{ 
// Construction 
public: 
	CFrequencyGraph(); 
	 
	void SetNumberOfSteps(WORD nSteps) { m_wSteps = nSteps; m_nStepFactor = (int)((m_nLength/m_wSteps)+0.5);} 
	void SetLowColor(COLORREF clrLow) { m_clrLow = clrLow; } 
	void SetMediumColor(COLORREF clrMedium) { m_clrMedium = clrMedium;	} 
	void SetHighColor(COLORREF clrHigh) { m_clrHigh = clrHigh; } 
	void SetMediumLevel(int nLevel) { m_nMediumLevel = nLevel; } 
	void SetHighLevel(int nLevel) { m_nHighLevel = nLevel; } 
	void SetGrid(BOOL bGridOn=TRUE) { m_bGrid = bGridOn; } 
	 
	WORD GetNumberOfSteps() { return m_wSteps; } 
	COLORREF GetLowColor() { return m_clrLow; } 
	COLORREF GetMediumColor() { return m_clrMedium; } 
	COLORREF GetHighColor() { return m_clrHigh; } 
	int GetMediumLevel() { return m_nMediumLevel; } 
	int GetHighLevel() { return m_nHighLevel; } 
	BOOL GetGrid() { return m_bGrid; } 
	void SetYRange(int nMin, int nMax) 
	{ 
		m_nMinValue=nMin; 
		m_nMaxValue=nMax; 
	} 
	void SetLogScale(BOOL bUseLogScale) { m_bLogScale = bUseLogScale; } 
	FrequencyGraphType GetGraphType() { return m_graphType; } 
	void SetGraphType(FrequencyGraphType gType) { m_graphType = gType; } 
 
	void Update(int nNumber, double* dArray);//Takes Intensity after FFT is performed on Wave Data 
protected: 
	int m_nLength; 
	double *m_dArray; 
	int m_nMinValue; 
	int m_nMaxValue; 
	int m_nHighLevel; 
	int m_nMediumLevel; 
	WORD m_wSteps; 
	int m_nStepFactor; 
	COLORREF m_clrLow; 
	COLORREF m_clrMedium; 
	COLORREF m_clrHigh; 
	BOOL m_bGrid; 
	BOOL m_bLogScale; 
	FrequencyGraphType m_graphType; 
	void Point(HDC hDC, int x, int y, COLORREF color); 
	BOOL Line(HDC hDC, int x1, int y1, int x2, int y2); 
 
// Attributes 
public: 
 
// Operations 
public: 
 
// Overrides 
	// ClassWizard generated virtual function overrides 
	//{{AFX_VIRTUAL(CFrequencyGraph) 
	//}}AFX_VIRTUAL 
 
// Implementation 
public: 
	virtual ~CFrequencyGraph(); 
 
	// Generated message map functions 
protected: 
	//{{AFX_MSG(CFrequencyGraph) 
	afx_msg void OnPaint(); 
	//}}AFX_MSG 
	DECLARE_MESSAGE_MAP() 
}; 
 
///////////////////////////////////////////////////////////////////////////// 
 
//{{AFX_INSERT_LOCATION}} 
// Microsoft Visual C++ will insert additional declarations immediately before the previous line. 
 
#endif // !defined(AFX_SPECTRUMGRAPH_H__D00FAB3B_95DC_433A_B106_D507409E1A0F__INCLUDED_)