Printing java.awt.Image from report parameter

[niik]

Hi all,

Does anyone have experience printing an image from a report parameter of type java.awt.Image? The image prints, but the colors are distorted/inverted.

These are the corresponding lines in the report:

<parameter name="sigImage" isForPrompting="false" class="java.awt.Image"/>

<imageExpression class="java.awt.Image"><![CDATA[$P{sigImage}]]></imageExpression>

The image is generated from an encrypted signature file before filling the report and stored as a java.awt.Image in a HashMap along with other report parameters that are passed into the report:

Map parameters = new HashMap();
parameters.put("sigImage",img);
jasperPrint = JasperFillManager.fillReport(rptfile,parameters,ds);

img is a java.awt.Image. I have tried replacing img with a JPG read from disk: same result, the image prints with inverted colors. If I export img as a file to disk from the Java program, it looks fine, even if I use the image retrieved from the HashMap. Only if I change the image expression in the report to type String and specify a file name, the image prints correctly.

Any help would be appreciated, thanks in advance.
 

Post Edited by niik at 06/29/2009 16:26

[niik]

As a workaround, I ended up writing the image to disk as a temporary JPG file. I can pass the file name into the report as a report parameter and use an image expression of type String to print the JPG.

I can use this for right now, but would appreciate any information on a cleaner solution. Thanks.

[lucianc]

Which JR version are you using?  There has been a recent fix related to java.awt.Images, if you're not using the latest JR give it a try to see whether your problem got fixed.

Regards,

Lucian

[niik]

Thanks for the suggestion. I will give that a try.

[netti royala]

I am using 4.7 version.BMP format images are not displyed in that ,,how can i solve this error in iReport and Jasper Server .Please Help me.