Comments on: Spicing up Matlab uicontrol tooltips

By: Multi-line tooltips | Undocumented Matlab

Multi-line tooltips | Undocumented Matlab — Thu, 03 Nov 2011 02:11:37 +0000

[...] In this blog, I have already posted several articles about how to tweak tooltip contents (here, here, and here). Today I would like to expand on one of the aspects that were already covered, [...]

By: Yair Altman

Yair Altman — Sat, 04 Dec 2010 18:45:38 +0000

@Koelemay – datacursor popups are not tooltips and they don’t support HTML to the best of my knowledge. There’s probably a way to make them HTML-aware, if you dig deep enough in the datacursor code (\toolbox\matlab\graphics\@graphics\@datacursor\*.m, \@datatip\*.m and their relatives within \@graphics). Let us all know if you find a workaround.

By: Koelemay

Koelemay — Fri, 03 Dec 2010 13:42:44 +0000

Hi Yair,
Sorry I think my question was too ambiguous; I was wondering if it is possible to get html markup in the datacursor mode popups. So, for example, using datamatrix I’d like to use html markup in the strings for the dataTips input. Hopefully I’m not missing something horribly obvious! Thanks again for your help!

By: Yair Altman

Yair Altman — Thu, 02 Dec 2010 17:11:44 +0000

@Koelemay - take a look at my DataMatrix utility, which does this:

By: Koelemay

Koelemay — Thu, 02 Dec 2010 15:05:01 +0000

Great post as usual — any idea how to get this to work on the text popups when using datacursormode?? It seems like it would be similar to the tooltips but doesn’t seem to work by default. Thanks in advance for your time!

By: Zeilenumbruch für Tooltips in Matlab | House-Tiere -d(~_~)b-

Zeilenumbruch für Tooltips in Matlab | House-Tiere -d(~_~)b- — Sat, 17 Apr 2010 01:46:59 +0000

[...] Was aber funktioniert ist html, es gibt ein undokumentiertes Feautre, mit dem einfach html eingefügt werden kann – Java machts möglich. [...]

By: Yair Altman

Yair Altman — Wed, 03 Jun 2009 21:41:56 +0000

@Alan - thanks.I'll do a post or two about systemdependent but look at my long TODO list: so little time, so much to do...

By: Alan

Alan — Wed, 03 Jun 2009 21:19:30 +0000

Offtopic, sorry, but just wanted to reiterate – great blog idea, you should definitely keep it up. How about a post on systemdependent() ?

By: Yair Altman

Yair Altman — Wed, 03 Jun 2009 17:18:56 +0000

@wei – handle2struct/struct2handle are internal Matlab functions that cannot be modified. However, you can easily build your own m-file version that try’s to call the built-in version and if an error is thrown, then the catch segment will create the necessary output object based on inspection of the Java object.

This could be a nice File Exchange submission – care to tackle it?

You can get some pointers by looking at the code within my UIInspect utility on the File Exchange.

By: Yair Altman

Yair Altman — Wed, 03 Jun 2009 17:10:51 +0000

@Ben – this was challenging: Until you asked I thought I knew the standard answer, which is “no” – tooltips use the system’s ToolTipManager object that can’t be modified. But then I found this Java hack, which I’m not even sure is documented in Java… Assuming you get the Java reference in jHandle:

import java.awt.event.ActionEvent;
action = jHandle.getActionMap.get('postTip');
actionEvent = ActionEvent(jHandle, ActionEvent.ACTION_PERFORMED, 'postTip');
action.actionPerformed(actionEvent);

The mouse does not even have to be anywhere near the GUI object!

Unfortunately, this hack requires the Java reference of the GUI object, and is not available for Matlab handles. To get a Matlab handle’s underlying Java reference you can use my FindJObj utility on the File Exchange and then use the hack.