Comments on: FindJObj – find a Matlab component’s underlying Java object

By: GUI integrated HTML panel | Undocumented Matlab

GUI integrated HTML panel | Undocumented Matlab — Wed, 30 Jun 2010 19:19:32 +0000

[...] for undocumented features we need the editbox's underlying JTextPane handle. This is done using the FindJObj utility [...]

By: Tabbed panes – uitab and relatives | Undocumented Matlab

Tabbed panes – uitab and relatives | Undocumented Matlab — Wed, 23 Jun 2010 18:47:13 +0000

[...] This object is not directly exposed by uitabgroup, but can be found using the FindJObj utility [...]

By: Continuous slider callback | Undocumented Matlab

Continuous slider callback | Undocumented Matlab — Mon, 08 Feb 2010 14:08:29 +0000

[...] AdjustmentValueChangedCallback property that is useful for our purposes and is accessible using the FindJObj utility. Simply download FindJObj from the File Exchange, and then: hSlider = [...]

By: Peter

Peter — Fri, 29 Jan 2010 11:31:10 +0000

Thanks Yair! I will try to figure it out from there… As long as I know it should be possible, it puts a little more power behind the effort.

Peter

By: Yair Altman

Yair Altman — Fri, 29 Jan 2010 11:00:54 +0000

@Peter - look at the way I added the callbacks-table in the FindJObj and UIInspect utilities. The source code is available on the File Exchange. Yair

By: Peter

Peter — Fri, 29 Jan 2010 10:17:43 +0000

Dear Yair

I am sorry for this kind of java newbie question, but I am back using the panes from the findobj. Now, instead of including a figure (as I asked about above) in one of the panes I would like to put a uitable or preferably your createtable from the FEX. I have tried many approaches, but none of them successful. I would be very happy if you have any directions on how to do it or have an example.

Thank you very much in advance!

Best regards, Peter

By: Daniel

Daniel — Fri, 15 Jan 2010 23:55:59 +0000

Yair, i moved my code to the _OutputFcn, but findjobj still returns empty arrays. I couldn’t find out what is my error.
i’ve written a simple code which replaces uicontrols with javax.swing.JTextFields:

function [ output_args ] = ReemplazarControles(hObject)
%UNTITLED2 Summary of this function goes here
%   Detailed explanation goes here
 
    children = get(hObject,'Children');
    nSize = size(children);
    for i=1:nSize
        hControl = children(i);
        if isa(handle(hControl),'uicontrol') 
            cStyle = get(hControl,'Style');
            if strcmp(cStyle,'edit')==1
                sPosition = get(hControl,'Position');
                sUnits = get(hControl,'Units');
                sParent = get(hControl,'Parent');
                [text textcontainer] = javacomponent('javax.swing.JTextField',[0 0 100 100], hObject);
                set(textcontainer,'Units','characters','Position',sPosition);
                delete(hControl);
            end
        end
        if isa(handle(hControl),'uipanel')
            ReemplazarControles(hControl);
        end
    end
end

it works fine, but JTextFields not response Tab key strokes.
I could use both methods. I don’t know wich is better.
I deeply appreciate your help

By: Yair Altman

Yair Altman — Fri, 15 Jan 2010 07:35:43 +0000

@Daniel - as I said, simply attach your InputVerifier in the _OutputFcn() instead of in the _OpeningFcn(). Both of these functions are automatically created by GUIDE: _OpeningFcn() is invoked before the figure is made visible and the Java peers are created; _OutputFcn() is invoked immediately after it's made visible, when the peers are in place. I would be happy if you added a comment with your InputVerifier code, for the benefit of other readers. If the code is long, email me (altmany at gmail) and I'll add a separate post about it.

By: Daniel

Daniel — Thu, 14 Jan 2010 21:28:43 +0000

Yair, you’re right. I was calling it in my OpenFcn() method. My purpose was set a InputVerifier to an edit control. Is there another callback in wich i can do that?

Thank you very much!

By: Yair Altman

Yair Altman — Thu, 14 Jan 2010 17:23:52 +0000

@Daniel - It works for me... Perhaps you're calling findjobj in your _OpeningFcn() instead of in your _OutputFcn() or in callbacks? This would explain the problem, since the GUI has not yet rendered onscreen in _OpeningFcn() (the figure is still invisible), so findjobj cannot find the Java handle.