在VS環境下,開發C++代碼操作PPT,支持對PPT模板的修改。包括修改文本標簽、圖表、表格。滿足大多數軟件生成PPT報告的要求,先手工創建好PPT模板,在程序中修改模板數據。
通過VS2012的Class Wizard創建PowerPoint和Excel的COM接口;由於需要操作PPT中的圖表,而圖表的數據使用Excel存儲的,需要修改圖表的數據就得生成Excel的COM接口。
選中所有的COM接口,生成接口文件。<喎?/kf/ware/vc/" target="_blank" class="keylink">vcD4NCjxoMiBpZD0="三-定義ppt文件基礎操作函數頭文件略">三、 定義PPT文件基礎操作函數(頭文件略)
class CPPTObject
{
public:
CApplication m_PPTApp;
CSlides m_Slides;
CSlide m_curSlide;
CPresentation m_Presentaion;
};
// 創建PPT應用,啟動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。
5.1.1 定義單元格數據結構
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;
}
// 將單元格坐標轉換名稱字符串
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& lstRowData)
{
m_lstValue.push_back(lstRowData);
}
// 獲取圖表數據
const std::list >& CChartDataCom::getValue()const
{
return m_lstValue;
}
// 修改圖表
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 >& lstValue = chartData.getValue();
std::list >::const_iterator iterAllData = lstValue.begin();
for(; iterAllData != lstValue.end(); ++iterAllData)
{
std::list::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;
}
// 合並PPT
bool CPPTUtil::MergePPT(const std::string& outputPPTPath, const std::list& 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);
// 循環打開合並文件插入PPT頁面
std::list::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();
// 合並PPT頁簽
CSlides outSlides = outPresention.get_Slides();
outSlides.InsertFromFile(CString(iterMergeFile->c_str()), outSlides.get_Count(), 1, pageNum);
}
outPresention.Save();
outPresention.Close();
pptApp.Quit();
return true;
}