Question

Here there are an example of saving an OpenOffice file to PDF. I’m using similar code to save Calc files to PDF. (It’s enough to change the property writer_pdf_Export to calc_pdf_Export.)

Unfortunately, the code doesn’t take into account the print area defined in the original file.

How can I do that?

Answer 1

Extending my previous code (which is not as clean as it could be) I would try something like this (note I haven’t tested it yet). The third parameter specifies the exported range as TRect variable:

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;