psignalgeneratedlg.cpp

基于Windows CE的正旋信号发生程序

// PSignalGenerateDlg.cpp : implementation file
//

#include "stdafx.h"
#include "PSignalGenerate.h"
#include "PSignalGenerateDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CPSignalGenerateDlg dialog

CPSignalGenerateDlg::CPSignalGenerateDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CPSignalGenerateDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CPSignalGenerateDlg)
	m_iAmplitude = 10000;
	m_iFrequency = 3000;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CPSignalGenerateDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CPSignalGenerateDlg)
	DDX_Text(pDX, IDC_EDIT_AMPLITUDE, m_iAmplitude);
	DDX_Text(pDX, IDC_EDIT_FREQUENCY, m_iFrequency);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CPSignalGenerateDlg, CDialog)
	//{{AFX_MSG_MAP(CPSignalGenerateDlg)
	ON_WM_DESTROY()
	ON_BN_CLICKED(IDC_BUTTON_START, OnButtonStart)
	ON_BN_CLICKED(IDC_BUTTON_STOP, OnButtonStop)
	ON_EN_CHANGE(IDC_EDIT_AMPLITUDE, OnChangeEditAmplitude)
	ON_EN_CHANGE(IDC_EDIT_FREQUENCY, OnChangeEditFrequency)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CPSignalGenerateDlg message handlers

BOOL CPSignalGenerateDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	CenterWindow(GetDesktopWindow());	// center to the hpc screen

	// TODO: Add extra initialization here
	m_SoundOut=new CSinGenerator;
	m_SoundOut->SetSinParametres(m_iAmplitude,m_iFrequency);

	return TRUE;  // return TRUE  unless you set the focus to a control
}



void CPSignalGenerateDlg::OnDestroy() 
{
	CDialog::OnDestroy();
	
	m_SoundOut->StopOutput();
	delete m_SoundOut;
}

void CPSignalGenerateDlg::OnButtonStart() 
{
	//m_SoundOut->OpenOutput();
	m_SoundOut->Restart();
}

void CPSignalGenerateDlg::OnButtonStop() 
{
	m_SoundOut->CloseOutput();
}

void CPSignalGenerateDlg::OnChangeEditAmplitude() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	UpdateData();
	if(m_iAmplitude<0)
	{
		m_iAmplitude=0;
	}
	if(m_iAmplitude>32000)
	{
		m_iAmplitude=32000;
	}
	m_SoundOut->SetSinParametres(m_iAmplitude,m_iFrequency);
	m_SoundOut->Restart();
	
}

void CPSignalGenerateDlg::OnChangeEditFrequency() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	UpdateData();
	if(m_iFrequency<0)
	{
		m_iFrequency=0;
	}
	if(m_iFrequency>44100)
	{
		m_iFrequency=44100;
	}
	m_SoundOut->SetSinParametres(m_iAmplitude,m_iFrequency);
	m_SoundOut->Restart();
	
}