www.gusucode.com > 几个VC++打印小例子-源码程序 > 几个VC++打印小例子-源码程序/code/Dlg_PrintTest/Dlg_PrintTestDlg.cpp

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// Dlg_PrintTestDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Dlg_PrintTest.h"
#include "Dlg_PrintTestDlg.h"
#include "PrintView.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()

/////////////////////////////////////////////////////////////////////////////
// CDlg_PrintTestDlg dialog

CDlg_PrintTestDlg::CDlg_PrintTestDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDlg_PrintTestDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDlg_PrintTestDlg)
	m_strTest = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CDlg_PrintTestDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDlg_PrintTestDlg)
	DDX_Text(pDX, IDC_EDIT_PRINTTEST, m_strTest);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CDlg_PrintTestDlg, CDialog)
	//{{AFX_MSG_MAP(CDlg_PrintTestDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_PRINT_BTN, OnPrintBtn)
	ON_BN_CLICKED(IDC_PRINT_PREVIEW_BTN, OnPrintPreviewBtn)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDlg_PrintTestDlg message handlers

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

void CDlg_PrintTestDlg::OnPrintBtn() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	
	//在打印过程中，“打印”按钮禁用
	GetDlgItem(IDC_PRINT_BTN)->EnableWindow(FALSE);

	//保存当前主窗口,否则打印结束后主窗口会自动关闭
	CFrameWnd *pOldFrameWnd = (CFrameWnd*)AfxGetThread()->m_pMainWnd;

	//定义一个单文档(SDI)或多文档(MDI)类型指针，因为它们具有打印功能
	//此处采用的是多文档类型
	CMultiDocTemplate *pMulDocTemp;
	pMulDocTemp = new CMultiDocTemplate(
		IDR_PRINT_MENU,//menu id：菜单地址
		NULL,//*pDocClass:文档类对象指针
		RUNTIME_CLASS(CFrameWnd),//*pFrameClass:窗口类对象指针
		RUNTIME_CLASS(CPrintView)//*pViewClass：视口类对象指针
		);
	
	//获得文档支持，此处用到的是打印支持
	AfxGetApp()->AddDocTemplate(pMulDocTemp);
	
	//创建新的窗口：打印窗口
	CFrameWnd *pFrameWnd=pMulDocTemp->CreateNewFrame(NULL,NULL);
	//初始化该窗口
	pMulDocTemp->InitialUpdateFrame(pFrameWnd,NULL);
	//设置当前窗口为打印窗口
	AfxGetApp()->m_pMainWnd = pFrameWnd;
	//设置打印窗口
	pFrameWnd->SetWindowText(_T("PrintTest"));
	//打印之前隐藏该打印窗口
	pFrameWnd->ShowWindow(SW_HIDE);

	//定义CPrintView类的一个对象指针
	CPrintView *pPrintView = (CPrintView*)pFrameWnd->GetActiveView();
	//CPrintView类的窗口指针指向当前主窗口
	pPrintView->m_pDlg=this;
	//执行CPrintView的打印函数
	pPrintView->OnFilePrint();

	//重新获得原来的主窗口
	AfxGetApp()->m_pMainWnd = pOldFrameWnd;	
	//打印结束后关闭打印窗口
	pFrameWnd->DestroyWindow();

	//恢复“打印”按钮
	GetDlgItem(IDC_PRINT_BTN)->EnableWindow(TRUE);
	
}

void CDlg_PrintTestDlg::OnPrintPreviewBtn() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	
	//保存当前主窗口,否则打印结束后主窗口会自动关闭
	CFrameWnd *pOldFrame = (CFrameWnd*)AfxGetThread()->m_pMainWnd;

	//定义一个单文档(SDI)或多文档(MDI)类型指针，因为它们具有打印预览功能
	//此处采用的是单文档类型
	CSingleDocTemplate *pSigDocTemp;
	pSigDocTemp = new CSingleDocTemplate(
		IDR_PRINT_MENU,//menu id：菜单地址
		NULL,//*pDocClass:文档类对象指针
		RUNTIME_CLASS(CFrameWnd),//*pFrameClass:窗口类对象指针
		RUNTIME_CLASS(CPrintView)//*pViewClass：视口类对象指针
		);

	//获得文档支持，此处用到的是打印预览支持
	AfxGetApp()->AddDocTemplate(pSigDocTemp);

	//创建新的窗口：打印预览窗口
	CFrameWnd *pFrameWnd=pSigDocTemp->CreateNewFrame(NULL,NULL);
	//初始化该窗口
	pSigDocTemp->InitialUpdateFrame(pFrameWnd,NULL);
	//设置当前窗口为打印预览窗口
	AfxGetApp()->m_pMainWnd = pFrameWnd;
	//设置打印预览窗口
	pFrameWnd->SetWindowText(_T("PreviewTest"));
	//打印预览之前隐藏该打印预览窗口
	pFrameWnd->ShowWindow(SW_HIDE);
	//设置打印预览窗口最大化
	pFrameWnd->ShowWindow(SW_SHOWMAXIMIZED);

	//定义CPrintView类的一个对象指针
	CPrintView *pPrintView = (CPrintView*)pFrameWnd->GetActiveView();
	//CPrintView类的对话框指针指向主对话框
	pPrintView->m_pDlg=this;
	//CPrintView类的窗口指针指向原来主窗口
	pPrintView->m_pFrameWnd = pOldFrame;
	pPrintView->m_pDlg=this;
	//执行CPrintView的打印预览函数
	pPrintView->OnFilePrintPreview();
}