Folks'es,
I just started using PDFBox after having to abondon iText (due to
licensing issues...).
I already successfully integrated the generation of a PDF document from
a Java Swing drawing in iText and now I would like to accomplish the
same with PDFBox.
Unfortunately it doesn't quite work the same/in a similar way. Here is
what I have:
* an Swing GUI that draws a chart
* the user hits an "Export" button and the chart is saved as a PDF file
* if the chart is bigger than the selected page size I need to
paginate the image
* at the end of the document I want to add table with some explanatory
remarks
So far I have been able to to draw the whole chart onto one page (based
on the current size of the canvas).
With the following code all I get is n pages each the size of 210x1mm
(or thereabouts), see attached result. Can any kind soul tell me, what
I'm doing wrong?
BufferedImage img = new BufferedImage(canvas.getWidth(),
canvas.getHeight(), BufferedImage.TYPE_INT_RGB);
canvas.export((Graphics2D)img.getGraphics());
pageSize = canvas.pageSize();
if (pageSize == null)
pageSize = new Rectangle(canvas.getWidth(), canvas.getHeight());
float pageWidth = pageSize.getWidth();
float pageHeight = pageSize.getHeight();
PDRectangle mediaBox = new PDRectangle(pageWidth * canvas.columns(),
pageHeight * canvas.rows());
PDRectangle cropBox = new PDRectangle(pageWidth, pageHeight);
PDDocument doc = null;
try {
doc = new PDDocument();
PDXObjectImage ximage = new PDJpeg(doc, img);
while (true) {
PDPage page = new PDPage(mediaBox);
page.setCropBox(cropBox);
doc.addPage(page);
PDPageContentStream contentStream = new
PDPageContentStream(doc, page);
contentStream.drawImage(ximage, 0, 0);
contentStream.close();
cropBox.move(pageWidth, 0);
if (cropBox.getUpperRightX() > mediaBox.getUpperRightX()) {
cropBox.setLowerLeftX(0);
cropBox.setUpperRightX(pageWidth);
cropBox.move(0, pageHeight);
}
if (cropBox.getUpperRightY() > mediaBox.getHeight())
break;
}
doc.save(fileName);
} finally {
if (doc != null) {
doc.close();
}
}
Thanks,
Thomas
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