VC++對話方塊程式列印及列印預覽的實現（二）
阿新 • • 發佈：2018-12-27
這是接上面的具體實現能夠成功的打印出資料
CPrintView.h的詳細程式碼
pragma once #include "StatisticsCoverDlg.h" // CPrintView 檢視 #define PRINTMARGIN 2 BOOL CALLBACK _AfxMyPreviewCloseProc(CFrameWnd* pFrameWnd); class CPrintView : public CScrollView { DECLARE_DYNCREATE(CPrintView) public: CPrintView(); // 動態建立所使用的受保護的建構函式 virtual ~CPrintView(); CCoverageStatisticsDlg* m_pOldWnd; public: #ifdef _DEBUG virtual void AssertValid() const; virtual void Dump(CDumpContext& dc) const; #endif protected: virtual void OnDraw(CDC* pDC); // 重寫以繪製此檢視 virtual void OnInitialUpdate(); // 構造後的第一次 virtual void OnPrint(CDC* pDC, CPrintInfo* pInfo); virtual void OnBeginPrinting(CDC* pDC, CPrintInfo* pInfo); virtual void OnEndPrinting(CDC* pDC, CPrintInfo* pInfo); void PrintPageHeader(CDC* pDC, UINT nPageNumber, CPrintInfo* pInfo);; UINT m_cxWidth; UINT m_cxOffset; UINT m_nLinesPerPage; UINT m_cyPrinter; CFont m_ListFont; CFont m_fontPrinter; BOOL m_bPrintData; BOOL m_bPrintImage; BOOL m_bPrintHead; DECLARE_MESSAGE_MAP() public: BOOL OnPreparePrinting(CPrintInfo* pInfo); void OnFilePrintPreview( ); }; //
CPrintView.cpp的詳細程式碼
#include "stdafx.h" #include "RadioPlaning.h" #include "PrintView.h" #include "MyPreviewView.h" // CPrintView IMPLEMENT_DYNCREATE(CPrintView, CScrollView) //修改建構函式；將座標射模式置換成預設模式。 CPrintView::CPrintView() { m_nMapMode = MM_TEXT; } CPrintView::~CPrintView() { } BEGIN_MESSAGE_MAP(CPrintView, CScrollView) //增加訊息對映實現列印 ON_COMMAND(ID_FILE_PRINT,CView::OnFilePrint) END_MESSAGE_MAP() // CPrintView 繪圖 void CPrintView::OnInitialUpdate() { CScrollView::OnInitialUpdate(); CSize sizeTotal; // TODO: 計算此檢視的合計大小 sizeTotal.cx = sizeTotal.cy = 100; SetScrollSizes(MM_TEXT, sizeTotal); } void CPrintView::OnDraw(CDC* pDC) { CDocument* pDoc = GetDocument(); // TODO: 在此新增繪製程式碼 } // CPrintView 診斷 #ifdef _DEBUG void CPrintView::AssertValid() const { CScrollView::AssertValid(); } void CPrintView::Dump(CDumpContext& dc) const { CScrollView::Dump(dc); } #endif //_DEBUG // CPrintView 訊息處理程式 //過載虛擬函式OnPreatePrinting，呼叫DoPreparePrinting生成 //用於列印或列印預覽的裝置描述表 BOOL CPrintView::OnPreparePrinting(CPrintInfo* pInfo) { return DoPreparePrinting(pInfo); } void CPrintView::OnFilePrintPreview( ) { CPrintPreviewState* pState = new CPrintPreviewState; //pState->lpfnCloseProc =_AfxMyPreviewCloseProc;//設定列印預覽視窗關閉時的呼叫函式； if(!DoPrintPreview(AFX_IDD_PREVIEW_TOOLBAR, this,RUNTIME_CLASS(CMyPreviewView), pState)) { TRACE0("Error: DoPrintPreview failed.\n"); AfxMessageBox(AFX_IDP_COMMAND_FAILURE); delete pState; } } //當單機列印預覽視窗關閉按鈕時呼叫 BOOL CALLBACK _AfxMyPreviewCloseProc(CFrameWnd* pFrameWnd) { ASSERT_VALID(pFrameWnd); CMyPreviewView* pView = (CMyPreviewView*) pFrameWnd->GetDlgItem(AFX_IDW_PANE_FIRST); ASSERT_KINDOF(CPreviewView, pView); pView->OnPreviewClose(); return FALSE; } //列印頁首頁尾 void CPrintView::PrintPageHeader(CDC* pDC, UINT nPageNumber, CPrintInfo* pInfo) { CFont *pOldFont; CFont fontHeader; fontHeader.CreatePointFont(100,"FixedSys",pDC); pOldFont=(CFont *)(pDC->SelectObject(&fontHeader)); int nPosY,nPosX; nPosY= 3 * m_cyPrinter; nPosX= m_cxOffset; pDC->TextOut(nPosX,nPosY,CString(_T("北京聯基動力科技有限公司"))); CString str; str.Format(_T("第 %d 頁 / 共 %d 頁"),nPageNumber,pInfo->GetMaxPage()); CSize size = pDC->GetTextExtent(str); //獲取特定的字串在螢幕上所佔的寬度和高度 nPosX = m_cxOffset+m_cxWidth-size.cx; pDC->TextOut(nPosX,nPosY,str); pDC->MoveTo(m_cxOffset,4*m_cyPrinter); pDC->LineTo(m_cxOffset+m_cxWidth,4*m_cyPrinter); pDC->SelectObject(pOldFont); fontHeader.DeleteObject(); } //開始列印設定字型等 void CPrintView::OnBeginPrinting(CDC* pDC,CPrintInfo* pInfo) { CScrollView::OnBeginPrinting(pDC,pInfo); //CDC* pDC = (CDC*)wParam; //CPrintInfo* pInfo = (CPrintInfo *)lParam; if(m_fontPrinter.m_hObject==NULL) m_fontPrinter.CreatePointFont(120,"FixedSys",pDC); TEXTMETRIC tm; CFont* pOldFont = pDC->SelectObject (&m_fontPrinter); pDC->GetTextMetrics (&tm); //獲取當前字型的資訊 m_cyPrinter = tm.tmHeight + tm.tmExternalLeading; CSize size = pDC->GetTextExtent (_T ("---------1---------2---------" \ "3---------4---------5---------6---------7---------8------"), 81); pDC->SelectObject (pOldFont); m_cxWidth = size.cx; ////////////////////////////////////////////////////////////////////////// m_nLinesPerPage = (pDC->GetDeviceCaps (VERTRES) - (m_cyPrinter * (3 + (2 * PRINTMARGIN)))) / m_cyPrinter; //pInfo->SetMaxPage (1); pInfo->SetMaxPage(pInfo->m_nCurPage); m_cxOffset = (pDC->GetDeviceCaps (HORZRES) - size.cx) / 2; return ; } //結束列印，釋放字型等 void CPrintView::OnEndPrinting(CDC* pDC, CPrintInfo* pInfo) { CScrollView::OnEndPrinting(pDC,pInfo); if(m_fontPrinter.m_hObject!=NULL) m_fontPrinter.DeleteObject(); return; } //列印資料 void CPrintView::OnPrint(CDC* pDC,CPrintInfo* pInfo) {//Andy CScrollView::OnPrint(pDC,pInfo); UINT gl_uNumOfPoints = 52; //CDC* pDC = (CDC*)wParam; //CPrintInfo* pInfo = (CPrintInfo *)lParam; int nPageNumber = pInfo->m_nCurPage; int i,j; CFont *pOldFont; CFont DataFont; DataFont.CreatePointFont(120,_T("宋體"),pDC); TCHAR *pszTitle[4]={"臺站名稱","門限","面積","人口"}; pOldFont = pDC->SelectObject(&DataFont); pDC->Rectangle(m_cxOffset,(int)((2.5 + PRINTMARGIN)*m_cyPrinter),m_cxOffset+m_cxWidth,(m_nLinesPerPage+3 + PRINTMARGIN)*m_cyPrinter+20); for(i=1;i<4;i++) { pDC->MoveTo(m_cxOffset+i*m_cxWidth/4,(int)((2.5 + PRINTMARGIN)*m_cyPrinter)); pDC->LineTo(m_cxOffset+i*m_cxWidth/4,(3 +m_nLinesPerPage+PRINTMARGIN)*m_cyPrinter+20); } pDC->MoveTo(m_cxOffset,(4 + PRINTMARGIN)*m_cyPrinter); pDC->LineTo(m_cxOffset+m_cxWidth,(4 + PRINTMARGIN)*m_cyPrinter); for(i=0;i<4;i++) { pDC->TextOut(m_cxOffset+50+i*m_cxWidth/4,(int)((2.8 + PRINTMARGIN)*m_cyPrinter),CString(pszTitle[i])); } //////////////////////////////////////Andy//////////////////////////////預覽資料 for(int i = 0; i < g_p2DView->m_StationManage.m_StationEntityArray.GetSize(); i++) { CStationEntity* pEntity = g_p2DView->m_StationManage.m_StationEntityArray.GetAt(i); double nCoverArea = g_p2DView->m_StationManage.GetCoverageArea(pEntity->m_nObjID,g_pMain->m_sysParameters.fThreshold); Station station = (g_p2DView->m_StationManage.m_StationEntityArray.GetAt(i))->m_Station; CString str[4]; int nIndex = (nPageNumber-1)*(m_nLinesPerPage-1)+i; if(nIndex<(int)gl_uNumOfPoints) { str[0].Format("%s",station.szName); str[1].Format("%.3f",g_pMain->m_sysParameters.fThreshold); str[2].Format("%.3f",nCoverArea); str[3].Format("%.f",0); for(j=0;j<4;j++) { pDC->TextOut(m_cxOffset+50+j*m_cxWidth/4,(4 + PRINTMARGIN+i)*m_cyPrinter+5,str[j]); } } } pDC->SelectObject (pOldFont); PrintPageHeader(pDC,pInfo->m_nCurPage, pInfo); return ; }