MATLAB: Does GUIDE automatically modify FIG-files even though I do not save them

controldateMATLABmodificationsoftwaresourceversion

When I navigate to the callback of a GUI object from GUIDE, it automatically saves the FIG-file.

I navigate to the callback by right-clicking on the GUI object in GUIDE, and then selecting

View Callbacks -> Callback from the context menu.

The FIG-file is saved, and the date modified is updated to the current time.

Best Answer

This is the expected behavior.

When you navigate to the callback function code in the program file of a GUI in GUIDE, the string in the 'Callback' property of the FIG-file is replaced by a string built by GUIDE to point to the same callback function. This ensures consistency of the callback function calls in the GUI. When this string is replaced, GUIDE saves the FIG-file so that consistency in the name of the callback is maintained between the code and FIG-file of the GUI.

Related Solutions

MATLAB: Am I unable to view the callbacks for the GUI components in the Editor when I click on them in the GUIDE property inspector in MATLAB 7.6 (R2008a)

This behavior can manifest if a GUIDE FIG-file is copied to create a new GUI. When the new FIG-file is opened in GUIDE, the callback properties of the GUI components still point to the old GUI program file. Therefore, if a new component is added, its callbacks will not be automatically created in the GUI program file and attempts to view the callback functions will be unsuccessful.

To correctly copy an existing GUI to a new GUI, open it up in GUIDE and choose "File > Save As". This will create a new GUI program file and modify all the callbacks of the GUI components.

MATLAB: How to automatically write (or export) many FIG-files to JPEG images in “batch mode” in MATLAB 7.8 (R2009a)

To automate this process, run the following code at the command prompt, or in a separate script. All "*.fig" files in the current directory will be exported as JPEG images:

d=dir('*.fig'); % capture everything in the directory with FIG extension
allNames={d.name}; % extract names of all FIG-files
close all; % close any open figures
for i=1:length(allNames)
      open(allNames{i}); % open the FIG-file
      base=strtok(allNames{i},'.'); % chop off the extension (".fig")
      print('-djpeg',base); % export to JPEG as usual
      close(gcf); % close it ("gcf" returns the handle to the current figure)
end

Best Answer

Related Solutions

MATLAB: Am I unable to view the callbacks for the GUI components in the Editor when I click on them in the GUIDE property inspector in MATLAB 7.6 (R2008a)

MATLAB: How to automatically write (or export) many FIG-files to JPEG images in “batch mode” in MATLAB 7.8 (R2009a)

Related Question