MATLAB: How to move text objects in a stand-alone application created by MATLAB Compiler

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How do I move text objects in a stand-alone application created by MATLAB Compiler?
In MATLAB, figure windows have an edit plot button. If I use the plot editor, I can select text and move it around the figure. How do I do this for a stand-alone application?

Best Answer

Below is an example on how to get moving text for a stand-alone application.
function movingtext
% MOVINGTEXT example to show how to move text objects in a stand-alone
% application 
% This will always move the text when the user clicks on it
% create example text object to move
htext=text('string', {'line1', 'line2'});
% set figure callbacks that make the text move.
set(gcf, 'WindowButtonMotionFcn', {@movetext, htext});
set(gcf, 'WindowButtonUpFcn', {@stoptext, htext});
% this function moves the text and saves what the current object 
% was before we moved the text
function movetext(hObj, eventData, htext)
if gco == htext
      % set it to selected so the user knows they are moving it
      set(htext, 'selected', 'on');
      % get the current point of wehre the mouse it.  Set the text's position to 
      % that point.  This is what makes it look like the text is following the mouse
      pos=get(gca, 'currentpoint');
      set(htext, 'position', [pos(1), pos(3)])
end
% this function executes when the user lets go of the mouse
function stoptext(hObj, eventData, htext, prev_obj)
%if the current object is the text object we want to move
if gco == htext
      % un select it so the user knows they are no longer moving the text
      set(htext, 'selected', 'off');
   % in order to get this to get this to work, set the current object back
   % to something that isn't the text object
   set(gcf, 'currentobject', gca);
end
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