polyadddlg.cpp

关于多项式相加的小程序

// PolyAddDlg.cpp : implementation file
//

#include "stdafx.h"
#include "PolyAdd.h"
#include "PolyAddDlg.h"
#include "String.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()

/////////////////////////////////////////////////////////////////////////////
// CPolyAddDlg dialog

CPolyAddDlg::CPolyAddDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CPolyAddDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CPolyAddDlg)
	m_nExpA = 0;
	m_nExpB = 0;
	m_strPolyA = _T("");
	m_strPolyB = _T("");
	m_strResult = _T("");
	m_nCoefB = 0;
	m_nCoefA = 0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CPolyAddDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CPolyAddDlg)
	DDX_Text(pDX, IDC_EXPA, m_nExpA);
	DDX_Text(pDX, IDC_EXPB, m_nExpB);
	DDX_Text(pDX, IDC_POLYA, m_strPolyA);
	DDX_Text(pDX, IDC_POLYB, m_strPolyB);
	DDX_Text(pDX, IDC_RESULT, m_strResult);
	DDX_Text(pDX, IDC_COEFB, m_nCoefB);
	DDX_Text(pDX, IDC_COEFA, m_nCoefA);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CPolyAddDlg, CDialog)
	//{{AFX_MSG_MAP(CPolyAddDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_ENSUREA, OnEnsurea)
	ON_BN_CLICKED(IDC_ENSUREB, OnEnsureb)
	ON_BN_CLICKED(IDC_POLY_ADD, OnPolyAdd)
	ON_BN_CLICKED(IDC_SHOWA, OnShowa)
	ON_BN_CLICKED(IDC_SHOWB, OnShowb)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CPolyAddDlg message handlers

BOOL CPolyAddDlg::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 CPolyAddDlg::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 CPolyAddDlg::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 CPolyAddDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CPolyAddDlg::ShowPoly()
{

}

void CPolyAddDlg::OnEnsurea() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	int coef, exp;
	coef = m_nCoefA;
	exp  = m_nExpA;
	polyA.InsertItem(coef, exp);
	UpdateData(FALSE);
}

void CPolyAddDlg::OnEnsureb() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	int coef, exp;
	coef = m_nCoefB;
	exp  = m_nExpB;
	polyB.InsertItem(coef, exp);
	UpdateData(FALSE);
}

void CPolyAddDlg::OnShowa() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	m_strPolyA = polyA.ShowPoly();
	UpdateData(FALSE);
}

void CPolyAddDlg::OnShowb() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	m_strPolyB = polyB.ShowPoly();
	UpdateData(FALSE);
}

void CPolyAddDlg::OnPolyAdd() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	polyC.head = polyA.head;
	polyA.p = polyA.head->next;
	polyB.p = polyB.head->next;
	polyC.p = polyA.head;
	while(polyA.p!=NULL&&polyB.p!=NULL)
	{
		if(polyA.p->node.exp<polyB.p->node.exp)
		{
			polyC.p = polyA.p;
			polyA.p = polyA.p->next;
		}
		else if(polyA.p->node.exp == polyB.p->node.exp)
		{
			int x = polyA.p->node.coef + polyB.p->node.coef;
			if(x!=0)
			{
				polyA.p->node.coef = x;
				polyC.p = polyA.p;
			}
			else
			{
				polyC.p->next = polyA.p->next;
				delete(polyA.p);
			}
			polyA.p = polyC.p->next;
			polyC.q = polyB.p;
			polyB.p = polyB.p->next;
			delete(polyC.q);
		}
		else
		{
			polyC.q = polyB.p->next;
			polyB.p->next = polyA.p;
			polyC.p->next = polyB.p;
			polyC.p = polyC.p->next;
			polyB.p = polyC.q;
		}		
	}
	if(polyB.p!=NULL)
		polyC.p->next = polyB.p;
	delete(polyB.head);
	m_strResult = polyA.ShowPoly();
	UpdateData(FALSE);
}