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David K
David K

Reputation: 1346

Selection Callback for text input

I'm using MATLAB GUIDE to build a GUI to control a piece of hardware. I have a data table the user needs to fill, and every time they select a cell a new configuration is sent to the hardware. This is easily done using the CellSelectionCallback().

However, I also have a single reference value that is currently being entered into an edit textbox. I would like for the GUI to send a new configuration to the hardware whenever a user selects the textbox, but before they enter their new value. Is there a similar SelectionCallback function that can be used for the textbox? The best solution I've come up with is to create a 1x1 table instead of an edit box.

Upvotes: 1

Views: 124

Answers (1)

Suever
Suever

Reputation: 65460

Your best bet is going to be to use a Java control since the standard MATLAB uicontrol does not have a focus callback. You can use a JTextField object, add it to your GUI with javacomponent and then register the FocusGainedCallback.

jtext = javax.swing.JTextField();
jtext.setHorizontalAlignment(javax.swing.JTextField.CENTER);

% Add the control to your GUI
htext = javacomponent(jtext, [10 10 200 10]);

% Register a callback to be executed when the box is selected
set(htext, 'FocusGainedCallback', @yourCallback)

Upvotes: 1

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