Question

Here有一个将OpenOffice文件保存为PDF的示例。我正在使用类似的代码将Calc文件保存为PDF。（这足以将属性writer_pdf_Export更改为calc_pdf_Export。）

不幸的是，代码没有考虑原始文件中定义的打印区域。

我该怎么做？

Answer 1

扩展我以前的代码（虽然不是那么干净）我会尝试这样的事情（注意我还没有测试过）。第三个参数将导出的范围指定为TRect变量：

procedure ExportCalcRangeToPDF(const ASourceFileURL, ATargetFileURL: string;
  ASheetIndex: Integer; ARange: TRect);
var
  CellRange: Variant;
  StarOffice: Variant;
  StarDesktop: Variant;
  StarDocument: Variant;
  FilterParams: Variant;
  ExportParams: Variant;
  ExportObject: Variant;

  function CreateProperty(const AName: AnsiString; const AValue: Variant): Variant;
  begin
    Result := StarOffice.Bridge_GetStruct('com.sun.star.beans.PropertyValue');
    Result.Name := AName;
    Result.Value := AValue;
  end;

begin
  StarOffice := CreateOleObject('com.sun.star.ServiceManager');
  StarDesktop := StarOffice.CreateInstance('com.sun.star.frame.Desktop');

  FilterParams := VarArrayCreate([0, 0], varVariant);
  FilterParams[0] := CreateProperty('Hidden', True);

  StarDocument := StarDesktop.LoadComponentFromURL(ASourceFileURL, '_blank', 0,
    FilterParams);
  CellRange := StarDocument.Sheets.getByIndex(ASheetIndex).getCellRangeByPosition(
    ARange.Left, ARange.Top, ARange.Right, ARange.Bottom);

  ExportParams := VarArrayCreate([0, 0], varVariant);
  ExportParams[0] := CreateProperty('Selection', CellRange);

  ExportObject := StarOffice.Bridge_GetValueObject;
  ExportObject.Set('[]com.sun.star.beans.PropertyValue', ExportParams);

  FilterParams := VarArrayCreate([0, 1], varVariant);
  FilterParams[0] := CreateProperty('FilterName', AnsiString('calc_pdf_Export'));
  FilterParams[1] := CreateProperty('FilterData', ExportObject);

  StarDocument.StoreToURL(ATargetFileURL, FilterParams);

  StarDocument.Close(True);
  StarDesktop.Terminate;

  StarDocument := Unassigned;
  StarDesktop := Unassigned;
  StarOffice := Unassigned;
end;    

procedure TForm1.Button1Click(Sender: TObject);
begin
  ExportCalcRangeToPDF(
    'file:///C:/SourceFile.ods',
    'file:///C:/TargetFile.pdf',
    0,
    Rect(1, 1, 2, 2)
  );
end;

Answer 2

要获取电子表格的打印区域，我会这样做。（当然可以改进）。

  ...
  Sheet: Variant;
  PrintAreas: Variant;
  ...

  ...
  Sheet := StarDocument.Sheets.getByIndex(0); // get the first sheet
  PrintAreas := Sheet.getPrintAreas; // get print areas

  CellRange := Sheet.getCellRangeByPosition(PrintAreas[0].StartColumn,
        PrintAreas[0].StartRow, PrintAreas[0].EndColumn,
        PrintAreas[0].EndRow); // Get range of the first print area
  ...

将OpenOffice Calc文件导出为PDF时，如何兑现打印区域？

2 个答案: