Creating table of toggle buttons

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Luis Chaves 2019-2-23

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评论： Krishna Zanwar 2019-3-1

Hello!

I am trying to create a table of toggle buttons so that when a button is pressed the value of that cell in an equivalent matrix to the table is changed. My question is: Do I need one callback function for each button or can I use a single function that handles the pressing/unpressing of any button in the table? If I need one callback function per button what is the best way to do so? Can I define callback function in the loops that build the table?

Here is my code (the callback function is not yet built):

S.fh = figure('units','pixels',...
              'position',[200 200 30*12 30*8],...
              'menubar','none',...
              'numbertitle','off',...
              'name','Well selection',...
              'resize','on');
          count = 1;
for a = 1:12
    for b = 1:8
        S.pb(a,b) = uicontrol('style','toggle',...
                 'units','pixels',...
                 'position',[30*(a-1) 240-30*b 30 30],...
                 'fontsize',14,...
                 'string',num2str(count),...
                 %The callback function is below, Would it be possible to define this callback function iteratively?
                 'callback',{@pb_call,S});
             count = count +1;
    end
end

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Answer 1

Krishna Zanwar 2019-2-27

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Hey Luis,

A single function can be used for callback of all the toggle buttons.

The button which was pressed can be recognized by-

get(hObject,'String')

The value of the button that was pressed can be displayed by-

get(hObject,'Value')

The pb_call function will be called when any button is pressed.

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Luis Chaves 2019-3-1

Hello Krishna,

Thank you for your reply, I am not very familiar with the use of hObject, I am using the structure S to save everything related to the pushbuttons, would I need to create S.hObject?

Could you provide some sample code of what the callback function would look like?

Best,

Luis

Krishna Zanwar 2019-3-1

Add this to your code and it will save the string of toggle button in 'Number' and the value of that button in 'Value'

function pb_call(hObject,a,b)
    Number=get(hObject,'String')
    Value=get(hObject,'Value')
end

You should get more information about callbacks here.

Hope it helps.

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