How to use data URI in tool-tip text JLabel?

Asked May 21 '20 at 09:58

Active May 21 '20 at 13:05

Viewed 72 times

I build a small GUI in Matlab that embedded several jLabel. To explain the visualized string I'm trying to set an image to the relative tooltiptext but it shows red cross. what am I wrong?

jLabel = javaObjectEDT('javax.swing.JLabel',['<html><center>New variable']);
jLabel.setTooltip(['<html><img src="data:/image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAwCAYAAABXAvmHAAAAQ0lEQVR4Ae3UoQ0AMAzEwO6/dIvLHRDpTsoABp8DAMDnDl9PgABg84jzkQsQsIeAnoBAPtLyogABAnwhAQIECBAAAA8G2o6A3D5IkwAAAABJRU5ErkJggg=="'])

edited May 21 '20 at 13:05

Andrew Thompson

168,117
40
217
433

asked May 21 '20 at 09:58

claudio

Java Swing's HTML support is **very** basic. It does not support `data` URI's. – Andrew Thompson May 21 '20 at 13:05
Is there a way to bypass this limitation? – claudio May 21 '20 at 13:23
Try extending the [`HTMLEditorKit`](https://docs.oracle.com/en/java/javase/13/docs/api/java.desktop/javax/swing/text/html/HTMLEditorKit.html). Disclaimer: It's not something I would spend time or effort on, so .. good luck! – Andrew Thompson May 21 '20 at 13:29
Oh, and [this answer](https://stackoverflow.com/a/14996842/418556) shows how to convert between URI's & images. – Andrew Thompson May 24 '20 at 00:57

How to use data URI in tool-tip text JLabel?

0 Answers0