MATLAB: Undo functioning in GUI in MATLAB .

guiguideredoundo

hello all , Working on image processing with using GUIDE , want to know that how to add "UNDO & REDO" buttons in GUI ?

Thanks in advance 🙂

Best Answer

For each change, you have to keep a record of the original state and the new state. Undo involves changing the current state to the original state and internally marking that you are now one further back in the chain. Redo involves changing the current state to the remembered state and internally marking that you are now one further along in the chain.

You need to decide what you want to happen if someone does something, undoes it, and then does something different. It is common that at that point the rest of the "redo" chain would be wiped out, but that is not the only possibility.

There is no MATLAB function to implement this for you. Changing current state can be a lot of work. For example if you triggered a call that did half an hour of calculations and changed 5 gigabytes of database, then undoing that work can be messy.

If you find that re-doing an action involves writing code that moves cursors and pressed buttons on the user's behalf, then chances are you need to re-think your design.

Related Solutions

MATLAB: Are there hot keys (shortcuts) that enable interactive mouse controlled pan and zoom for a figure

Here's a way that works by using the uimenu's accelerator option. There will be a menu you could use or ctrl + letter to activate:

function HotKeyAcc
% A figure
fig = figure('menubar','none');
% Add menus with Accelerators
mymenu = uimenu('Parent',fig,'Label','Hot Keys');
uimenu('Parent',mymenu,'Label','Zoom','Accelerator','z','Callback',@(src,evt)zoom(fig,'on'));
uimenu('Parent',mymenu,'Label','Rotate','Accelerator','r','Callback',@(src,evt)rotate3d(fig,'on'));
uimenu('Parent',mymenu,'Label','Pan','Accelerator','p','Callback',@(src,evt)pan(fig,'on'));
% Some plot
plot(rand(1,50))
end

MATLAB: Where is the undo/redo function in SimBiology

Hi,

Unfortunately, you cannot find the buttons because the SimBiology Desktop does not yet support undo or redo.

I am one of the members of the SimBiology development team. We know that undo/redo would be very useful to our users, but competing priorities have not allowed us to provide this functionality yet. However, we do hope to support undo/redo in a future release.

-Arthur

Best Answer

Related Solutions

MATLAB: Are there hot keys (shortcuts) that enable interactive mouse controlled pan and zoom for a figure

MATLAB: Where is the undo/redo function in SimBiology

Related Question