在VS環境下,開發C++代碼操做PPT,支持對PPT模板的修改。包括修改文本標籤、圖表、表格。知足大多數軟件生成PPT報告的要求,先手工建立好PPT模板,在程序中修改模板數據。php
經過VS2012的Class Wizard建立PowerPoint和Excel的COM接口;因爲須要操做PPT中的圖表,而圖表的數據使用Excel存儲的,須要修改圖表的數據就得生成Excel的COM接口。算法
選中全部的COM接口,生成接口文件。數據結構
class CPPTObject { public: CApplication m_PPTApp; CSlides m_Slides; CSlide m_curSlide; CPresentation m_Presentaion; };
// 建立PPT應用,啓動powerpoint程序。 bool CPPTUtil::CreatePPTApplication() { COleException exception; LPCSTR str = "Powerpoint.Application"; if(!m_pPPTObject->m_PPTApp.CreateDispatch(str, &exception)) { AfxMessageBox(exception.m_sc, MB_SETFOREGROUND); return false; } m_pPPTObject->m_PPTApp.put_Visible(true); return true; }
// 打開模板ppt。 bool CPPTUtil::OpenPPT(const std::string& pptPath) { CPresentations presentations = m_pPPTObject->m_PPTApp.get_Presentations(); m_pPPTObject->m_Presentaion = presentations.Open(CString(pptPath.c_str()), 0, 0, 1); m_pPPTObject->m_Slides = m_pPPTObject->m_Presentaion.get_Slides(); return true; }
// 關閉PPT,保存數據關閉。 bool CPPTUtil::ClosePPT() { m_pPPTObject->m_Presentaion.Save(); m_pPPTObject->m_Presentaion.Close(); m_pPPTObject->m_PPTApp.Quit(); return true; }
// 選中PPT指定索引的幻燈片。 bool CPPTUtil::SelectSlide(long slideIndex) { if (slideIndex > m_pPPTObject->m_Slides.get_Count()) { return false; } m_pPPTObject->m_curSlide = m_pPPTObject->m_Slides.Range(COleVariant(slideIndex)); return true; }
// 修改文本框 bool CPPTUtil::ModifyTextBox(const std::string& boxName, const std::string& strValue) { CShapes shapes = m_pPPTObject->m_curSlide.get_Shapes(); for(long i = 1; i <= shapes.get_Count(); ++i) { CShape shape(shapes.Item(COleVariant(i))); CString name = shape.get_Name(); if(shape.get_Type() == (long)Office::msoTextBox && name.Compare(CString(boxName.c_str())) == 0) { CTextFrame textFrame = shape.get_TextFrame(); CTextRange textRange = textFrame.get_TextRange(); CString txt = textRange.get_Text(); textRange.put_Text(strValue.c_str()); } } return true; }
boxName對應於PPT中的Shape Name。這個Shape Name貌似在PowerPoint中沒有地方能看到,也沒有辦法修改。只能在調試時記錄下來。app
5.1.1 定義單元格數據結構ide
CCellDataCom::CCellDataCom(const CellValueType valueType, const std::string& strValue, const int iRow, const int iCol) { m_ValueType = valueType; m_strValue = strValue; m_strPos = indexToString(iRow, iCol); } // 獲取單元格值類型 CellValueType CCellDataCom::getValueType() { return m_ValueType; } // 獲取字符串類型值 const std::string& CCellDataCom::getStringValue() { return m_strValue; } // 獲取整型值 long CCellDataCom::getLongValue() { return atol(m_strValue.c_str()); } // 獲取浮點類型值 double CCellDataCom::getDoubleValue() { return atof(m_strValue.c_str()); } // 獲取單元格位置名稱 const std::string& CCellDataCom::getPos() { return m_strPos; } // 將單元格座標轉換名稱字符串 CString CCellDataCom::indexToString( int row, int col ) { CString strResult; if( col > 26 ) { strResult.Format(_T("%c%c%d"),'A' + (col-1)/26-1,'A' + (col-1)%26,row); } else { strResult.Format(_T("%c%d"), 'A' + (col-1)%26,row); } return strResult; } 5.1.2 定義圖表數據結構 // 插入一行記錄 void CChartDataCom::insertRowData(const std::list<CCellDataCom>& lstRowData) { m_lstValue.push_back(lstRowData); } // 獲取圖表數據 const std::list<std::list<CCellDataCom> >& CChartDataCom::getValue()const { return m_lstValue; }
// 修改圖表函數
bool CPPTUtil::ModifyChart(const std::string& chartName, const CChartDataCom& chartData) { CShapes shapes = m_pPPTObject->m_curSlide.get_Shapes(); for(long i = 1; i <= shapes.get_Count(); ++i) { CShape shape(shapes.Item(COleVariant(i))); if(shape.get_Type() != (long)Office::msoChart || chartName != std::string(shape.get_Name().GetBuffer())) { continue; } // 修改圖表數據 return ModifyChartData(shape.get_Chart(), chartData); } return false; } // 修改圖表數據 bool CPPTUtil::ModifyChartData(CChart chart, const CChartDataCom& chartData) { // 激活圖表組件的excel數據表格,打開內嵌的excel. CChartData chartDataModel = chart.get_ChartData(); chartDataModel.Activate(); CWorkbook workBook = chartDataModel.get_Workbook(); CWorksheets sheets = workBook.get_Worksheets(); if(sheets.get_Count() == 0) { return false; } // 獲取第一個sheet, 圖表組件的數據都在內嵌excel的第一個sheet頁。 VARIANT vaSheetIndex; vaSheetIndex.vt = VT_I4; vaSheetIndex.lVal = 1; CWorksheet sheet = sheets.get_Item(vaSheetIndex); bool bRet = true; // 循環修改單元格的數據 const std::list<std::list<CCellDataCom> >& lstValue = chartData.getValue(); std::list<std::list<CCellDataCom> >::const_iterator iterAllData = lstValue.begin(); for(; iterAllData != lstValue.end(); ++iterAllData) { std::list<CCellDataCom>::const_iterator iterRowData = iterAllData->begin(); for(; iterRowData != iterAllData->end(); ++iterRowData) { bRet = ModifyCellData(sheet, *iterRowData); if(bRet == false) { break; } } if(bRet == false) { break; } } // 關閉Excel CApplication0 app0 = workBook.get_Application(); app0.Quit(); Sleep(2000); return bRet; } // 修改單元格數據 bool CPPTUtil::ModifyCellData(CWorksheet sheet, CCellDataCom cellData) { const std::string& cellPos = cellData.getPos(); CRange range = sheet.get_Range(COleVariant(cellPos.c_str()), COleVariant(cellPos.c_str())); COleVariant* pOleVar = NULL; if(cellData.getValueType() == CELL_STRING_TYPE) { pOleVar = new COleVariant(CString(cellData.getStringValue().c_str())); } else if(cellData.getValueType() == CELL_LONG_TYPE) { pOleVar = new COleVariant(cellData.getLongValue()); } else if(cellData.getValueType() == CELL_DOUBLE_TYPE) { pOleVar = new COleVariant(cellData.getDoubleValue()); } else { return false; } range.put_Value2(*pOleVar); delete pOleVar; return true; }
// 合併PPT bool CPPTUtil::MergePPT(const std::string& outputPPTPath, const std::list<std::string>& lstMergePPTPath) { CApplication pptApp; COleException exception; // 打開PowerPoint程序 LPCSTR str = "Powerpoint.Application"; if(!pptApp.CreateDispatch(str, &exception)) { AfxMessageBox(exception.m_sc, MB_SETFOREGROUND); return false; } pptApp.put_Visible(true); // 打開輸出文件 CPresentations presentations = pptApp.get_Presentations(); CPresentation outPresention = presentations.Open(CString(outputPPTPath.c_str()), 0, 0, 1); // 循環打開合併文件插入PPT頁面 std::list<std::string>::const_iterator iterMergeFile = lstMergePPTPath.begin(); for(; iterMergeFile != lstMergePPTPath.end(); ++iterMergeFile) { CPresentation mergePresention = presentations.Open(CString(iterMergeFile->c_str()), 0, 0, 1); CSlides mergeSlides = mergePresention.get_Slides(); int pageNum = mergeSlides.get_Count(); mergePresention.Close(); // 合併PPT頁籤 CSlides outSlides = outPresention.get_Slides(); outSlides.InsertFromFile(CString(iterMergeFile->c_str()), outSlides.get_Count(), 1, pageNum); } outPresention.Save(); outPresention.Close(); pptApp.Quit(); return true; }