TooltipString won't show if uicontrol Enable is not 'on'

Hey MATLAB users,

I have a Edit style uicontrol label, which has set 'enable' to 'intactive' to make it not editable.

But now, I also want to add a tooltipString for this ui label, but since it's set to inactive, nothing will show.

I really dont want to use 'text' since there is no outline for the label box.

Is there anyway I could add TooltipString for this case.

there is one ticket about it, but didn't solve my question really well: https://www.mathworks.com/matlabcentral/answers/81029-tooltipstring-not-displaying-when-button-is-disabled

[Luna]

Have you tried to get java object handle and it didn't work as it said in Yair's blog?

Could you please share the code?

[Kat Lee]

I have trie java handle, but not sure if I used the one you are pointing me to.

Could you send me the link for the Java handle you were mentioning

[Walter Roberson]

if you just need an enclosing box then you can put uicontrol text inside uipanel.

[Kat Lee]

Good idea! so this panel and uicontrol will share the same size right? or in another word, how shall I ensure I put the text dirctly on top of the panel?

[Walter Roberson]

Make units for the uicontrol 'normalized' and position [0 0 1 1], and parent it to the uipanel.

[Kat Lee]

thanks for providing more help!

What value shall be use for unit as 'char' since my code need uicontrol to have unit as 'char'

[Walter Roberson]

At the time you create the uipanel you can give char units and Position to it, and then create the uicontrol with units normalized and size [0 0 1 1]. After that set() the uicontrol to units char if you need to.

[Kat Lee]

This one works !

So far, i guess this is the " best" choice I could have if I want to set to 'interactive' but still want to keep the tooltip.

Hope MATLAB could extend this uicontrol with more option for users.

Answer 1

[Luna]

Here you can get the object, set editable property of the Java object as false like below and then add a tooltip.

hEditbox = uicontrol('String','Edit Text','Style','edit');
drawnow;
jEditbox = findjobj(hEditbox); % gets the java object handle
set(jEditbox,'Editable',false); % this will disable your editbox
set(jEditbox,'ToolTipText','Text is inactive for a reason'); % this will create a tooltip string

[Kat Lee]

This one doesn't work, I tried to findjobj after uicontrol been created, and then for that particulart label, set a ToolTipTest, but I sitll didn't see the tooltip

[Walter Roberson]

I seem to recall that there are some race conditions where a java object might not be allocated until the graphics object is rendered -- the drawnow() that Luna shows.

[Kat Lee]

thanks for the information

I am not very willing to use drawnow and findjobj, since it will slow down the speed a lot if we generating a bunch of ui button