基于对话框打印程序--虚拟视图

1、基于对话框打印程序-采取虚拟的文档视图结构方法首先生成基于对话框的MFC程序，类名为CTestDlg; 往对话框上拖动2个按钮，一个事件为打印，一个为预览; void CTestDlg:OnBtnPrint() CPrintFrmWnd* WooPrintFrmWnd = new CPrintFrmWnd(1);void CTestDlg:OnBtnView() CPrintFrmWnd* WooPrintFrmWnd = new CPrintFrmWnd(0);然后按照以下步骤操作步骤1，从CView类派生新类CPrintView； 该类主要实现预览等需要重载函数OnPrepareDC On

2、PreparePrinting OnPrint等等#define HEADER_TOP 300/ 头部信息距离页面最顶端的距离class CPrintView : public CViewprotected:CPrintView(); / protected constructor used by dynamic creationDECLARE_DYNCREATE(CPrintView)/ AttributesUINT m_nPageNums;CFont m_FontHeader;/ 头部内容字体CFont m_FontMain;/ 主体内容字体CFont m_FontFooter;/ 尾部内

3、容字体CSize m_szView;/ 预览窗口大小UINT m_uHeadSmpGap;/ 头部信息和样本信息垂直方向间距UINT m_uMainLeftGap;/ 除头部内容外其他内容距左边的距离, 也是距离右边的距离PRINTINFO m_printInfo2;/ 存储需要打印的页内容public:void OnFilePrintPreview();void InitPrintInfo();void PrintContent(CDC *pDC, UINT nInex);/ Operationspublic:virtual void OnPrepareDC(CDC* pDC, CPrint

4、Info* pInfo);/ Overrides/ ClassWizard generated virtual function overrides/AFX_VIRTUAL(CPrintView)protected:virtual BOOL OnPreparePrinting(CPrintInfo* pInfo);virtual void OnDraw(CDC* pDC); / overridden to draw this viewvirtual void OnPrint(CDC* pDC, CPrintInfo* pInfo);/AFX_VIRTUAL/ Implementationpro

5、tected:virtual CPrintView();#ifdef _DEBUGvirtual void AssertValid() const;virtual void Dump(CDumpContext& dc) const;#endif/ Generated message map functions/AFX_MSG(CPrintView)/AFX_MSGDECLARE_MESSAGE_MAP();实现如下:#include stdafx.h#include test.h#include PrintView.h#include PrintPreviewView.h#ifdef _DEB

6、UG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE = _FILE_;#endif/ CPrintView/ 使类支持RUNTIMEIMPLEMENT_DYNCREATE(CPrintView, CView)/*/ Function name : _AfxMyPreviewCloseProc/ Description : 很关键，删除打印类资源/*/BOOL CALLBACK _AfxMyPreviewCloseProc(CFrameWnd* pFrameWnd)ASSERT_VALID(pFrameWnd);CPrintP

7、reviewView* pView = (CPrintPreviewView*) pFrameWnd-GetDlgItem(AFX_IDW_PANE_FIRST);ASSERT_KINDOF(CPreviewView, pView);pView-OnPreviewClose();return FALSE;/ CPrintView drawingvoid CPrintView:OnDraw(CDC* pDC)CDocument* pDoc = GetDocument();/ CPrintView diagnostics#ifdef _DEBUGvoid CPrintView:AssertVali

8、d() constCView:AssertValid();void CPrintView:Dump(CDumpContext& dc) constCView:Dump(dc);#endif /_DEBUG/ CPrintView message handlers/*/ Function name : CPrintView:CPrintView/ Description : 设定头及底部高度，字体等/*/CPrintView:CPrintView()m_uHeadSmpGap = 300;m_uMainLeftGap = 500;m_FontHeader.CreateFont(150, 80,

9、0, 0, FW_EXTRABOLD, 0, 0, 0, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH, _T(宋体);m_FontMain.CreateFont(100, 50, 0, 0, FW_NORMAL, 0, 0, 0, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH, 宋体);m_FontFooter.CreateFont

10、(100, 50, 0, 0, FW_NORMAL, 0, 0, 0, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH, 宋体);InitPrintInfo();void CPrintView:InitPrintInfo()/设置 头部CString strHeader(_T(省立医院检验报告单);m_printInfo0.SetHeader(strHeader);/ 设置样本信息PATINFO ptInfo;ptInfo.strAge = 25;ptInfo.st

11、rName = 卢正云;ptInfo.strSex = 女;m_printInfo0.SetPatInfo(ptInfo);/ 设置列标题信息vector vColTitle;ColTitlePos colTp;/ 设置项目及其结果信息-同一个人可能检验多个项目colTp.strColName = 项目名称;colTp.vValue.push_back(AFP);colTp.vValue.push_back(T3);colTp.vValue.push_back(CEA);vColTitle.push_back(colTp);colTp.ReSet();colTp.strColName = 检验

12、结果;colTp.vValue.push_back(20);colTp.vValue.push_back(5);colTp.vValue.push_back(68);vColTitle.push_back(colTp);colTp.ReSet();colTp.strColName = 参考值;colTp.vValue.push_back(0-10);colTp.vValue.push_back(2-10);colTp.vValue.push_back(10-100);vColTitle.push_back(colTp);m_printInfo0.SetvColumnTitle(vColTitl

13、e);/ 设置尾部TAIL tl;tl.strAudit = 何旭峰;tl.strSender = 夏小斌;CTime time = CTime:GetCurrentTime();tl.strSendTime.Format(%d-%d-%d, time.GetYear(), time.GetMonth(), time.GetDay();tl.strAudiTime.Format(%d-%d-%d, time.GetYear(), time.GetMonth(), time.GetDay();m_printInfo0.SetTail(tl);/ 设置第二个样本打印信息/设置 头部strHeade

14、r.Format(%s, _T(省立医院检验报告单);m_printInfo1.SetHeader(strHeader);/ 设置样本信息ptInfo.strAge = 28;ptInfo.strName = 刘鹏;ptInfo.strSex = 男;m_printInfo1.SetPatInfo(ptInfo);/ 设置列标题vColTitle.clear();colTp.ReSet();/ 设置项目及其结果信息-同一个人可能检验多个项目colTp.strColName = 项目名称;colTp.vValue.push_back(ESP);colTp.vValue.push_back(25V

15、ID);colTp.vValue.push_back(T4);colTp.vValue.push_back(Pep);colTp.vValue.push_back(USP);vColTitle.push_back(colTp);colTp.ReSet();colTp.strColName = 检验结果;colTp.vValue.push_back(10);colTp.vValue.push_back(25);colTp.vValue.push_back(18);colTp.vValue.push_back(15);colTp.vValue.push_back(10);vColTitle.pus

16、h_back(colTp);colTp.ReSet();colTp.strColName = 参考值;colTp.vValue.push_back(3-30);colTp.vValue.push_back(1-100);colTp.vValue.push_back(10-20);colTp.vValue.push_back(10-100);colTp.vValue.push_back(0-0);vColTitle.push_back(colTp);m_printInfo1.SetvColumnTitle(vColTitle);/ 设置尾部tl.strAudit = 何旭芳;tl.strSend

17、er = 夏小斌;time = CTime:GetCurrentTime();tl.strSendTime.Format(%d-%d-%d, time.GetYear(), time.GetMonth(), time.GetDay();tl.strAudiTime.Format(%d-%d-%d, time.GetYear(), time.GetMonth(), time.GetDay();m_printInfo1.SetTail(tl);CPrintView:CPrintView()if (&m_FontHeader)m_FontHeader.DeleteObject();if (&m_Fo

18、ntFooter)m_FontFooter.DeleteObject();if (&m_FontMain)m_FontMain.DeleteObject();BEGIN_MESSAGE_MAP(CPrintView, CView)ON_COMMAND(ID_FILE_PRINT, CView:OnFilePrint)ON_COMMAND(ID_FILE_PRINT_DIRECT, CView:OnFilePrint)ON_COMMAND(ID_FILE_PRINT_PREVIEW, OnFilePrintPreview)/AFX_MSG_MAP(CPrintView)/AFX_MSG_MAPE

19、ND_MESSAGE_MAP()/*/ Description : 设定每页行数及总行数/*/BOOL CPrintView:OnPreparePrinting(CPrintInfo* pInfo)/ int nLines = 30;/行数/ m_nPageNums = (nLines%20 = 0 ? nLines/20 : (1+nLines/20) );/页数,每页约20行/ m_nPageNums = (m_nPageNums = 0 ? 1 : m_nPageNums);m_nPageNums = sizeof(m_printInfo) /sizeof(m_printInfo0);/

20、 设定总共页数pInfo-SetMinPage(0);pInfo-SetMaxPage(m_nPageNums);return DoPreparePrinting(pInfo);void CPrintView:OnFilePrintPreview( )CPrintPreviewState* pState = new CPrintPreviewState;pState-lpfnCloseProc =_AfxMyPreviewCloseProc;/设置打印预览窗口关闭时的调用函数；if(!DoPrintPreview(AFX_IDD_PREVIEW_TOOLBAR, this, RUNTIME_C

21、LASS(CPrintPreviewView), pState)TRACE0(Error: DoPrintPreview failed.n);AfxMessageBox(AFX_IDP_COMMAND_FAILURE);delete pState;/*/ Description : 设置dc相关内容/*/void CPrintView:OnPrepareDC(CDC* pDC, CPrintInfo* pInfo) CView:OnPrepareDC(pDC, pInfo);if (pDC-IsPrinting() & pInfo!=NULL)void CPrintView:OnPrint(C

22、DC* pDC, CPrintInfo* pInfo) if (pInfo-m_nCurPage m_nPageNums)return;/CSize size;size.cx = abs(pInfo-m_rectDraw.Width();size.cy = abs(pInfo-m_rectDraw.Height();pDC-SetWindowExt(size);m_szView = size;int xLogPixPerInch = pDC-GetDeviceCaps(LOGPIXELSX); int yLogPixPerInch = pDC-GetDeviceCaps(LOGPIXELSY)

23、;/ 得到设备坐标和逻辑坐标的比例 long xExt = (long)size.cx * xLogPixPerInch/96 ; long yExt = (long)size.cy * yLogPixPerInch/96 ;pDC-SetViewportExt(int)xExt, (int)yExt);/ 打印主体内容for (UINT i = 1; i m_nCurPage = i)PrintContent(pDC, i - 1);void CPrintView:PrintContent(CDC *pDC, UINT nInex)ASSERT(nInex SelectObject(&m_F

24、ontHeader);/ 必须在计算字符串宽度之前将字体选到DC中CSize sz = pDC-GetTextExtent(strInfo);/ 获取当前系统汉字的高度uRowHeight = sz.cy;uHeaderLeft = m_szView.cx / 2 - sz.cx / 2;/ 头部信息水平方向居中pDC-TextOut(uHeaderLeft, uHeaderTop, strInfo);pDC-SelectObject(pOldFont);/ 显示样本信息pOldFont = pDC-SelectObject(&m_FontMain);uHeaderTop += m_uHead

25、SmpGap;/ 头部信息与样本信息间隔距离稍微大些/ 画横线线-起点横坐标为距离左边一个m_uMainLeftGap,终点X为m_szView.cx - m_uMainLeftGappDC-MoveTo(uOtherLeft, uHeaderTop);pDC-LineTo(m_szView.cx - m_uMainLeftGap, uHeaderTop);uHeaderTop += uRowHeight/2;/ 横线下面内容与横线的间隔strInfo.Format(姓名: %s 性别: %s 年龄: %s, m_printInfonInex.patInfo.strName, m_printI

26、nfonInex.patInfo.strSex, m_printInfonInex.patInfo.strAge);pDC-TextOut(uOtherLeft, uHeaderTop, strInfo);uHeaderTop += uRowHeight;pDC-MoveTo(uOtherLeft, uHeaderTop);pDC-LineTo(m_szView.cx - m_uMainLeftGap, uHeaderTop);/ 根据列的数目以及列信息以及纸张宽度，计算各列间空隙UINT uSize = m_printInfonInex.vColumnTitle.size();/得到一共有几

27、列if (0 = uSize)return;UINT uColTotalWidth = 0;/ 各列字符串的宽度和vector:iterator itrCol = m_printInfonInex.vColumnTitle.begin();for (; itrCol != m_printInfonInex.vColumnTitle.end(); itrCol+)ColTitlePos colTp = *itrCol;sz = pDC-GetTextExtent(colTp.strColName);uColTotalWidth += sz.cx;/ 计算列间距UINT uSpace = (m_s

28、zView.cx - m_uMainLeftGap * 2 - uColTotalWidth) / (uSize - 1);/ 设定各列输出的起始位置并输出各列 itrCol = m_printInfonInex.vColumnTitle.begin();uHeaderTop += uRowHeight/2;/ 横线下面内容与横线的间隔/ 各列的位置的Y值UINT uNextColPrintX = uOtherLeft;/ 第一列输出的起始位置UINT uRowCount = 0;for (; itrCol != m_printInfonInex.vColumnTitle.end(); itr

29、Col+)uRowCount = 0;UINT uPrinxY = uHeaderTop;ColTitlePos ctp = *itrCol;ctp.uPrintXPos = uNextColPrintX;CString strColName = ctp.strColName;pDC-TextOut(uNextColPrintX, uPrinxY, strColName);uPrinxY += uRowHeight;vector:iterator itrVal = ctp.vValue.begin();for (; itrVal != ctp.vValue.end(); itrVal+)pDC

30、-TextOut(uNextColPrintX, uPrinxY, (*itrVal);uPrinxY += uRowHeight;uRowCount+;sz = pDC-GetTextExtent(strColName);uNextColPrintX += sz.cx + uSpace;/ 显示横线uHeaderTop += uRowHeight * (uRowCount + 1);pDC-MoveTo(uOtherLeft, uHeaderTop);pDC-LineTo(m_szView.cx - m_uMainLeftGap, uHeaderTop);pDC-SelectObject(p

31、OldFont);/ 显示尾部pDC-SelectObject(&m_FontFooter);uHeaderTop += uRowHeight/2;/ 横线下面内容与横线的间隔strInfo.Format(送检者: %s 送检日期: %s, m_printInfonInex.tailInfo.strSender, m_printInfonInex.tailInfo.strSendTime);pDC-TextOut(uOtherLeft, uHeaderTop, strInfo);uHeaderTop += uRowHeight;strInfo.Format(审核者: %s 审核日期: %s,

32、m_printInfonInex.tailInfo.strAudit, m_printInfonInex.tailInfo.strAudiTime);pDC-TextOut(uOtherLeft, uHeaderTop, strInfo);uHeaderTop += uRowHeight;pDC-MoveTo(uOtherLeft, uHeaderTop);pDC-LineTo(m_szView.cx - m_uMainLeftGap, uHeaderTop);pDC-SelectObject(pOldFont);void CPrintView:PrintPageHeader(CDC* pDC

33、, CPrintInfo* pInfo)pDC-SetTextColor(RGB(255, 0, 255);CString strHeader(header);CSize sz = pDC-GetTextExtent(strHeader);pDC-TextOut(m_szView.cx / 2 - sz.cx / 2, 100, strHeader);void CPrintView:PrintPageFooter(CDC* pDC,CPrintInfo* pInfo)pDC-SetTextColor(RGB(0, 0, 255);CString strFoot(foot);CSize sz =

34、 pDC-GetTextExtent(strFoot);pDC-TextOut(m_szView.cx / 2 - sz.cx / 2, 1000, strFoot);步骤2：#include / 该类提供打印按钮在预览窗口上，打印按钮是预览窗口自定义好的/ 用户在预览窗口上点击打印按钮也也可实现打印功能class CPrintPreviewView : public CPreviewView protected:CPrintPreviewView();DECLARE_DYNCREATE(CPrintPreviewView)public:afx_msg void OnPreviewClose(

35、);afx_msg void OnPreviewPrint();/ Generated message map functionsprotected:/AFX_MSG(CPrintPreviewView)/AFX_MSGDECLARE_MESSAGE_MAP();实现如下：#include stdafx.h#include test.h#include PrintPreviewView.h#ifdef _DEBUG#undef THIS_FILEstatic char THIS_FILE=_FILE_;#define new DEBUG_NEW#endif#include PrintFrmWn

36、d.h/ Construction/Destruction/IMPLEMENT_DYNCREATE(CPrintPreviewView, CPreviewView)CPrintPreviewView:CPrintPreviewView()BEGIN_MESSAGE_MAP(CPrintPreviewView, CPreviewView)/AFX_MSG_MAP(CPrintPreviewView)ON_COMMAND(AFX_ID_PREVIEW_CLOSE, OnPreviewClose)ON_COMMAND(AFX_ID_PREVIEW_PRINT, OnPreviewPrint)/AFX

37、_MSG_MAPEND_MESSAGE_MAP()/ CPrintPreviewView message handlers/*/ Function name : OnPreviewClose/ Description : /关闭预览窗口/*/void CPrintPreviewView:OnPreviewClose()CPrintFrmWnd* pFrame = (CPrintFrmWnd*) :AfxGetMainWnd();AfxGetApp()-m_pMainWnd = pFrame-m_pOldWnd;pFrame-DestroyWindow();/*/ Function name :

38、 CPrintPreviewView:OnPreviewPrint/ Description : /从预览窗口直接打印/*/void CPrintPreviewView:OnPreviewPrint()m_pPrintView-SendMessage(WM_COMMAND, ID_FILE_PRINT_DIRECT);/ID_FILE_PRINT_DIRECT步骤三：从类CFrameWnd派生新类CPrintFrmWnd#include PrintView.hclass CPrintFrmWnd : public CFrameWndDECLARE_DYNCREATE(CPrintFrmWnd)

39、public:BOOL m_bDirectPrint;CWnd* m_pOldWnd;CPrintView* m_pView;/用于保存视图类对象CPrintFrmWnd(); / protected constructor used by dynamic creationCPrintFrmWnd(BOOL bPrint); / protected constructor used by dynamic creation/ Operationspublic:/ Overrides/ ClassWizard generated virtual function overrides/AFX_VIR

40、TUAL(CPrintFrmWnd)protected:virtual BOOL PreCreateWindow(CREATESTRUCT& cs);/AFX_VIRTUAL/ Implementationprotected:virtual CPrintFrmWnd();/ Generated message map functions/AFX_MSG(CPrintFrmWnd)afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);/AFX_MSGDECLARE_MESSAGE_MAP();实现如下：#include stdafx.h#incl

41、ude test.h#include PrintFrmWnd.h#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE = _FILE_;#endif/ CPrintFrmWndIMPLEMENT_DYNCREATE(CPrintFrmWnd, CFrameWnd)CPrintFrmWnd:CPrintFrmWnd()/*/ Function name : CPrintFrmWnd:CPrintFrmWnd/ Description : BOOL bPrint true打印 false预览/*/CPrint

42、FrmWnd:CPrintFrmWnd(BOOL bPrint)m_bDirectPrint = bPrint;m_pOldWnd = AfxGetApp()-m_pMainWnd;if(!Create(NULL, 打印预览, WS_OVERLAPPEDWINDOW|FWS_ADDTOTITLE,CRect(200,200,600,600)TRACE0(Failed to create view window!n);CPrintFrmWnd:CPrintFrmWnd()m_pOldWnd-ShowWindow(SW_SHOW);BEGIN_MESSAGE_MAP(CPrintFrmWnd, C

43、FrameWnd)/AFX_MSG_MAP(CPrintFrmWnd)ON_WM_CREATE()/AFX_MSG_MAPEND_MESSAGE_MAP()/ CPrintFrmWnd message handlersBOOL CPrintFrmWnd:PreCreateWindow(CREATESTRUCT& cs) cs.style &= (WS_THICKFRAME);cs.style &= (WS_MAXIMIZEBOX);return CFrameWnd:PreCreateWindow(cs);int CPrintFrmWnd:OnCreate(LPCREATESTRUCT lpCr

44、eateStruct) if (CFrameWnd:OnCreate(lpCreateStruct) = -1)return -1; CCreateContext context;context.m_pNewViewClass = RUNTIME_CLASS(CPrintView);context.m_pCurrentFrame = this;context.m_pCurrentDoc = NULL;context.m_pLastView = NULL;m_pView = STATIC_DOWNCAST(CPrintView, CreateView(&context);if(m_pView != NULL) m_pView-ShowWindow(SW_SHOW);SetActiveView(m_pView);SetIcon(m_pOldWnd-GetIcon(FALSE),FALSE);SetIcon(m_pOldWnd-GetIcon(TRUE