Re: [iText-questions] getPageAsImage(), PdfPatternPainter and setPatternFill problem

[Paulo Soares]

You'll have to complain to whoever wrote PdfDecoder, probably jpedal.

Paulo

> -----Original Message-----
> From: [EMAIL PROTECTED]
> [EMAIL PROTECTED] On
> Behalf Of Laurent Godard
> Sent: Tuesday, July 22, 2008 12:40 PM
> To: itext-questions@lists.sourceforge.net
> Subject: [iText-questions] getPageAsImage(),
> PdfPatternPainter and setPatternFill problem
>
>
> Hi all
>
> I experience some troubles using getPageAsImage() with
> objects drawn with
> image patterns
>
> All is ok when the file is generated as PDF, but while trying
> to extract a
> page to generate an image (png), the image background are not
> taken into
> account
>
> Here is how i create my zones containing images as backround
> (obviously,
> these zones are not regular rectangle or circles)
>
> //---- this is pseudo code
> --------------------------------------------------------
> pdfTemplate.lineTo(x,y);
> pdfTemplate.lineTo(x,y);
> pdfTemplate.lineTo(x,y);
> ....
>
> PdfPatternPainter pattern = pdfTemplate.createPattern(width,
> height, width,
> height);
> image.scaleAbsolute(width, height);
> image.setAbsolutePosition(0, 0);
> pattern.addImage(image);
> pdfTemplate.setPatternFill(pattern);
> pdfTemplate.closePathFillStroke();
> //------------------------------------------------------------
>
> creating a PDF file is ok, all my special forms have the
> pattern image as
> background
>
> but when exporting as Image, i get no background and a lot of
> of my objects
> are completely black color filled.
> I reproduce this for filters such as png, jpg or bmp
>
> so i suspect the problem to be in the the getPageAsImage()
> (no problem when using rectangle API though)
>
> Here is the code used to create the image
> //------------------------------------------------------------
> ByteArrayOutputStream baos;
>
> PdfDecoder decoder = new PdfDecoder(true);
> decoder.useHiResScreenDisplay(true);
> decoder.openPdfArray(baos.toByteArray());
>
> BufferedImage img = decoder.getPageAsImage(1);
> img.flush();
>
> ByteArrayOutputStream image = new ByteArrayOutputStream();
> ImageIO.write(img, "png", image);
> //------------------------------------------------------------
>
> Has someone already experience this ? is something i do wrong ?
> Feel free to ask for mor details
>
> Thanks in advance
>
> Laurent


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