convdlg.cpp

来自「数字信号处理中的卷积程序,通过显示列表很清楚的显示卷积结果,而且精度较高」· C++ 代码 · 共 226 行

// convDlg.cpp : implementation file
//

#include "stdafx.h"
#include "conv.h"
#include "convDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CConvDlg dialog

CConvDlg::CConvDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CConvDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CConvDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CConvDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CConvDlg)
	DDX_Control(pDX, IDC_LISTB, m_listb);
	DDX_Control(pDX, IDC_LISTA, m_lista);
	DDX_Control(pDX, IDC_LIST2, m_list);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CConvDlg, CDialog)
	//{{AFX_MSG_MAP(CConvDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_COMMAND(ID_MENU_CONV, OnMenuConv)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CConvDlg message handlers

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

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// 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
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CConvDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CConvDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CConvDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CConvDlg::OnMenuConv() 
{
	int size;
	size1=64;
	size2=8;
	if(size1>size2)
		size=size2;
	else
		size=size1;
	a=new double[size1];
	b=new double[size2];
	c=new double[size1+size2-1];
	for(int i=0;i<size1;i++)
	{
		a[i]=i+1;
		CString str;
		str.Format("%f",a[i]);
		m_lista.AddString(str);
	}
	for(i=0;i<size2;i++)
	{
		b[i]=i+1;
		CString str;
		str.Format("%f",b[i]);
		m_listb.AddString(str);
	}
	for(int k=0;k<size1+size2-1;k++)
	{
		double temp=0;
		for(i=0;i<size1;i++)
		{
		
			if(((k-i)>=0)&&((k-i)<size2))
			{
				temp+=a[i]*b[k-i];
			}
			else continue;
		}
		c[k]=temp;
	}

	for(i=0;i<size1+size2-1;i++)
	{
		CString str;
		str.Format("%f",c[i]);
		m_list.AddString(str);
	}
	Invalidate(true);


}