Re: GraphicExportFilter with openoffice 3.1 and 3.3 not setting DPI?

Am 17.02.2011 10:18, schrieb cdfleischmann:
>
> Hello all, I have attempted to replicate the BASIC Macro I found called
> http://openoffice.2283327.n4.nabble.com/file/n3310397/ExportAllGraphics300dpi.odt
> ExportAllGraphics300dpi.odt  which successfullyexports graphics out of the
> writer document successfully creating images with a DPI set to 300. I tried
> to replicate the same but in Java, retrieving the image from OpenOffice
> Draw, produces the following code:
>
> // Get the shape size.
>              Size aSizeInMM_100TH = xShape.getSize();
>
>              long WidthInMM = aSizeInMM_100TH.Width / 100;
>              long HeightInMM = aSizeInMM_100TH.Height / 100;
>
>              double DPMm = 300 / 25.6;
>
>              long WidthPix  = Math.round(WidthInMM * DPMm);
>              long HeightPix = Math.round(HeightInMM * DPMm);
>
>              if (xExporter != null) {
>                  PropertyValue filter[] = new PropertyValue[7];
>
>                  filter[0] = new PropertyValue();
>                  filter[0].Name  ="Color";
>                  filter[0].Value = 7;
>                  // 0: Original; 1: 1-Bit threshold value; 2: 1-Bit
> dithering; 3: 4-Bit Greyscale; 4: 4-Bit Color Palette; 5: 8-Bit Greyscale;
> 6: 8-Bit Color Palette; 7: True Color
>
>                  filter[1] = new PropertyValue();
>                  filter[1].Name  ="ExportMode";
>                  filter[1].Value = 2;
>                  // 0: Original; 1: DPI; 2: Size
>
>                  filter[2] = new PropertyValue();
>                  filter[2].Name  ="Resolution";
>                  filter[2].Value = 300;
>                  // in DPI, only used for ExportMode DPI. For the actual
> export dimensions, PixelWidth and PixelHeight are used, Resolution is only
> written into the file header
>
>                  filter[3] = new PropertyValue();
>                  filter[3].Name  = "PixelWidth";
>                  filter[3].Value = WidthPix;
>
>                  filter[4] = new PropertyValue();
>                  filter[4].Name  = "PixelHeight";
>                  filter[4].Value = HeightPix;
>
>                  filter[5] = new PropertyValue();
>                  filter[5].Name  = "LogicalWidth";
>                  filter[5].Value = WidthInMM * 100;
>                  // LogicalWidth:  integer, only usable with ExportMode Size,
> only influences the DPI header.
>
>                  filter[6] = new PropertyValue();
>                  filter[6].Name  = "LogicalHeight";
>                  filter[6].Value = HeightInMM * 100;
>                  // LogicalHeight: integer, only usable with ExportMode Size,
> only influences the DPI header.
>
>
>                  System.out.println("filter is: " + Arrays.toString(filter));
>
>                  PropertyValue aProps[] = new PropertyValue[3];
>
>                  aProps[0] = new PropertyValue();
>                  aProps[0].Name = "MediaType";
>                  aProps[0].Value = "image/png";
>
>                  aProps[1] = new PropertyValue();
>                  aProps[1].Name = "URL";
>
>                  // Write the image as a jpg out to a temporary file.
>                  String realPath =
> getServletContext().getRealPath("file.png");
>
>                  StringBuilder destUrl = new StringBuilder("file:///");
>
>                  destUrl.append(realPath.replace('\\', '/'));
>
>                  aProps[1].Value = destUrl.toString();
>
>                  aProps[2] = new PropertyValue();
>                  aProps[2].Name  = "FilterData";
>                  aProps[2].Value = filter;
>
>                  System.out.println("aProps is: " + Arrays.toString(filter));
>
>                  System.out.println("TRYING TO GET XCOMPONENT");
>                  XComponent xComp = (XComponent)
> UnoRuntime.queryInterface(XComponent.class, xShape);
>                  System.out.println("GOT XCOMPONENT");
>
>                  System.out.println("TRYING TO SET setSourceDocument");
>                  xExporter.setSourceDocument(xComp);
>                  System.out.println("SET setSourceDocument");
>
>                  System.out.println("TRYING TO GET XFilter");
>                  XFilter xFilter = (XFilter)
> UnoRuntime.queryInterface(XFilter.class, xExporter);
>                  System.out.println("GOT XFilter");
>
>                  System.out.println("FILTERING");
>                  System.out.println(xFilter.filter(aProps));
>                  System.out.println("FILTERED");
>
> I am however exporting graphics from OpenOffice Draw, not writer, could that
> be the problem? Is there some setting I am missing to set the DPI when
> exporting graphics from openoffice draw... Any hints/tips or tricks greatly
> appreciated.
>
> This problems seems to be the same with OpenOffice 3.1 as it is for 3.3.
>
> I have tried openoffice running on my old OpenSolaris install which seems to
> export at 96 DPI regardless of the DPI or SIZE setting, and on my openoffice
> 3.3 install with OS X, I get 110 DPI with the same code?


I think the problem is that a java long is 64 bit, try replace it with
an int that should work.

Regards,
Christian