My apologies if this is a well-known issue already. But I am using Mac OSX and
just discovered it.
I got this error when trying to paint a component using the PdfGraphics2D.
apple.awt.EventQueueExceptionHandler Caught Throwable :
java.lang.IllegalArgumentException:
null incompatible with Text-specific antialiasing enable key
java.lang.IllegalArgumentException:
null incompatible with Text-specific antialiasing enable key
at java.awt.RenderingHints.put(RenderingHints.java:482)
at com.lowagie.text.pdf.PdfGraphics2D.setRenderingHint(Unknown Source)
at apple.laf.AquaUtils.endFont(AquaUtils.java:40)
at apple.laf.AquaLabelUI.paint(AquaLabelUI.java:32)
at javax.swing.plaf.ComponentUI.update(ComponentUI.java:154)
at javax.swing.JComponent.paintComponent(JComponent.java:541)
at javax.swing.JComponent.paint(JComponent.java:808)
at javax.swing.JComponent.paintChildren(JComponent.java:647)
at javax.swing.JComponent.paint(JComponent.java:817)
at jeffadams.qsheet.gui.OutputUtil.writeToPDF(OutputUtil.java:49)
Here's the code:
public static void writeToPDF(String fileName, JComponent comp) {
// step 1: creation of a document-object
Document document = new Document();
comp.setVisible(true);
try {
// step 2: creation of the writer
PdfWriter writer = PdfWriter.getInstance(document,
new FileOutputStream(fileName));
// step 3: we open the document
document.open();
// step 4: we grab the ContentByte and do some stuff with it
// we create a template and a Graphics2D object that corresponds
with it
int w = 150;
int h = 150;
PdfContentByte cb = writer.getDirectContent();
PdfTemplate tp = cb.createTemplate(w, h);
Graphics2D g2 = tp.createGraphics(w, h);
tp.setWidth(w);
tp.setHeight(h);
comp.paint(g2);
g2.dispose();
cb.addTemplate(tp, 50, 400);
}
catch(DocumentException de) {
System.err.println(de.getMessage());
}
catch(IOException ioe) {
System.err.println(ioe.getMessage());
}
// step 5: we close the document
document.close();
}
As you can see it's mostly just a copy of the example, only I replaced the
manual drawing of a pear with a call to component.paint().
So, I downloaded the source code and "fixed" the problem. I saw a message
somewhere (here: http://www.junlu.com/msg/70735.html ) that said that this was
due
to an underlying problem in OSX (or OSX's java implementation). Since that
doesn't seem like the kind of thing that I can plan on having fixed any
time soon, I modified the itext code to eat the exception.
First I had to fix "compile.xml" to change the reference to
"../META-INF/MANIFEST.MF" to instead reference
"${itext.src}/META-INF/MANIFEST.MF".
Other than that, I just ran:
ant download
ant compile
ant jar
Somehow all the working dirs were pointing to ".." from where I was
executing ant (so it made ../src, ../build). Not really a problem,
but an oddity.
I wrapped "setRenderingHint" and "setRenderingHints" in PdfGraphics2D.java
with try/catch blocks that caught IllegalArgumentException and ignored it.
Hope this is valuable to someone.
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