printdialogdlg.cpp

C++编程实践与技巧一书各章节的源码

// printdialogDlg.cpp : implementation file
//

#include "stdafx.h"
#include "printdialog.h"
#include "printdialogDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CPrintdialogDlg dialog

CPrintdialogDlg::CPrintdialogDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CPrintdialogDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CPrintdialogDlg)
		// 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 CPrintdialogDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CPrintdialogDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CPrintdialogDlg, CDialog)
	//{{AFX_MSG_MAP(CPrintdialogDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_PRINT, OnPrint)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CPrintdialogDlg message handlers

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

// 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 CPrintdialogDlg::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 CPrintdialogDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CPrintdialogDlg::OnPrint() 
{
	CDC dc;
    CPrintDialog printDlg(FALSE);
	if (printDlg.DoModal() == IDCANCEL)         // Get printer settings from user
        return;
	dc.Attach(printDlg.GetPrinterDC());         // Attach a printer DC
    dc.m_bPrinting = TRUE;
	CString strTitle;                           // Get the application title
    strTitle.LoadString(AFX_IDS_APP_TITLE);
	DOCINFO di;                                 // Initialise print document details
    ::ZeroMemory (&di, sizeof (DOCINFO));
    di.cbSize = sizeof (DOCINFO);
    di.lpszDocName = strTitle;
	BOOL bPrintingOK = dc.StartDoc(&di);        // Begin a new print job
	// Get the printing extents and store in the m_rectDraw field of a 
    // CPrintInfo object
    CPrintInfo Info;
    Info.m_rectDraw.SetRect(0,0, 
                            dc.GetDeviceCaps(HORZRES), 
                            dc.GetDeviceCaps(VERTRES));

    OnBeginPrinting(&dc, &Info);                // Initialise printing
    for (UINT page = Info.GetMinPage(); 
         page <= Info.GetMaxPage() && bPrintingOK; 
         page++)
    {
        dc.StartPage();                         // begin new page
        Info.m_nCurPage = page;
        cv->OnPrint(&dc, &Info);                    // Print page
        bPrintingOK = (dc.EndPage() > 0);       // end page
    }
    cv->OnEndPrinting(&dc, &Info);                  // Clean up after printing
	if (bPrintingOK)
        dc.EndDoc();                            // end a print job
    else
        dc.AbortDoc();                          // abort job.
    dc.Detach();                                	
}