lawavecapture.h

Lakey这是一个免费的CW练习/收/发软件

#pragma once

#include "EventManagerWin32.h"
#include "FFT.h"
#include "dsound.h"

class ICwEventListener
{
public:
	virtual void OnCwEvent(BOOL bCwDown) = 0;
};

class CLaWaveCapture
	: public IPaintEventControl
{
public:
	CLaWaveCapture(IPaintableParent* pParent, const RECT* pRect, int nSamplePerSec, int nAnalyzeSample, ICwEventListener* pCwEventListener = NULL);
	~CLaWaveCapture(void);

	virtual BOOL IsRelated(int x, int y);
	virtual void GetRect(RECT* r);
	virtual void OnPaint(void* owner, CGraphics* g, const RECT* pRect);

	virtual BOOL Initialize();
	virtual BOOL Refresh();

	virtual void SetThresholdLevel(double rThresholdLevel);
	virtual void SetFreqRange(int nLowFreq, int nHighFreq);

private:
	void DrawRuler();

	IPaintableParent*		m_pParent;
	CFont*		m_pFont;
	RECT		m_oRect;	// by parent
	RECT		m_oPaintRect;	// by self
	RECT		m_oRulerRect;	// by self
	CGraphics*	m_pPaintBoard;

	IDirectSoundCapture*		m_pDsCap;
	IDirectSoundCaptureBuffer*	m_pDsCapBuff;

	WAVEFORMATEX		m_oFormat;
	DSCBUFFERDESC		m_oCaptureBufferDesc;

	short int*	m_pWavBuff; //[512];
	short int*	m_pDctBuff; //[256];
	short int*	m_pFreqRuler; //[256];

	TCosFFT<short int>*		m_pFft;

	ICwEventListener* m_pCwEventListener;
	DWORD		m_nAnalyzeSamples;
	int			m_nRecvThreshold;
	int			m_nRecvFreqStart;
	int			m_nRecvFreqEnd;
	BOOL		m_bState;
};