I have a PDF with form elements in a table.
the form elements are added in the cellEvent. I did this in order to know where
the cells are on the page, which enables me to use the method described in the
book "iText in Action". It actually works, the form fields are added and can be
filled out, but as soon as the field looses focus, the text is not displayed
anymore. It must have something to do with layers and order but I was not able
to find out a solution.
Notice that the fields are added to the last PdfContentByte in the array:
PdfContentByte pcb = canvas[canvas.length - 1]; But it has the same behavior if
the fields are added to canvas[0]
cell.setCellEvent( new PdfPCellEvent() {
@Override
public void cellLayout( PdfPCell pdfPCell,
Rectangle rectangle,
PdfContentByte[] canvas ) {
PdfContentByte pcb = canvas[canvas.length - 1];
PdfWriter writer = pcb.getPdfWriter();
PdfFormField field =
PdfFormField.createTextField( writer, false, false, 3 );
field.setName( "quantity " + hashCode() );
field.setFieldFlags( PdfFormField.FF_EDIT );
Rectangle rect = new Rectangle(
rectangle.getLeft() + 5, rectangle.getTop() - 5,
rectangle.getLeft() +
rectangle.getWidth() - 5,
rectangle.getTop() -
rectangle.getHeight() + 5 );
rect.setBackgroundColor( BaseColor.BLUE );
field.setWidget( rect,
PdfAnnotation.HIGHLIGHT_OUTLINE );
field.setFieldFlags( PdfAnnotation.FLAGS_PRINT );
writer.addAnnotation( field );
writer.flush();
pcb.rectangle( rect );
}
} );
Micha Roon
micha.r...@managination.com
+41 78 810 02 92
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