chain together GUIs in MATLAB

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Andrew McReynolds
Andrew McReynolds 2020-3-20
评论： Rik 2020-3-23
I am trying to create a program in matlab that chains together several tested, functioning GUIs but I am having some trouble.
In one function I have:
global Status;
global value1;
Status = 'setup';
switch Status
case 'setup'
ADone = ASetup; %Calls setup function which should return a value when done
if strcmp(ADone, 'yes')==1
Status = 'Pos1';
end
case 'Pos1'
value1 = OHMgui1;
Status = 'Pos2';
case 'Pos2'
%Still work in progress
end
And in my Asetup function I have:
function done = ASetup
AStatus = GUI1;
BStatus = GUI2();
CStatus = GUI3();
DStatus = GUI4();
%Up until here everything goes as intended
Refstatus = RefGUI();
done = 'yes'; %Returns value when finished
disp (done) %Check statement, does not execute, error happens somewhere before here
end
GUIs 1-4 basically just display reference images with an OK button to close them, and I control them by using uiwait() and having them set a return value when the OK button is pushed (to make sure one doesn't trigger until the previous one is closed). This functions exactly as I would like.
However for RefGUI, I created it with a continue and a close button. I want the user to be able to click continue and have the program continue while RefGUI stays open. Ideally this would result in a call OHMGUI1, but it doesn't even seem to display the check statement.
I suspect the error is in RefGUI, which opens at the correct time, but I cannot get anything to happen after the continue or close buttons are pressed (with the exception of closing the GUI without the program continuing). Its code is:
function varargout = RefGUI(varargin)
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @ClampRef_OpeningFcn, ...
'gui_OutputFcn', @ClampRef_OutputFcn, ...
'gui_LayoutFcn', [] , ...
'gui_Callback', []);
if nargin && ischar(varargin{1})
gui_State.gui_Callback = str2func(varargin{1});
end
if nargout
[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
gui_mainfcn(gui_State, varargin{:});
end
function RefGUI_OpeningFcn(hObject, eventdata, handles, varargin)
matlabImage = imread('C:...reference.jpg');
image(matlabImage)
axis off
axis image
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
set(handles.pushbutton2,'enable','off') %Disable close button until continue is pressed
function varargout = RefGUI_OutputFcn(hObject, eventdata, handles)
uiwait();
global valueout;
varargout{1} = valueout;
%I have also tried disabling the above 3 lines with no difference.
function pushbutton1_Callback(hObject, eventdata, handles)
global valueout;
valueout = 'Finished';
set(handles.pushbutton2,'enable','on') %enable close button
set(handles.pushbutton1,'enable','off') %disable continue button
return
function pushbutton2_Callback(hObject, eventdata, handles)
closereq(); %close button closes GUI window
What can I do to make the program continue as intended?

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回答（1 个）

Andrew McReynolds
Andrew McReynolds 2020-3-21
I got rid of the switch case, moved the display statement before setting the return value, and used UIresume(); Now it works
  3 个评论
显示 1更早的评论
Andrew McReynolds
Andrew McReynolds 2020-3-22
编辑：Andrew McReynolds 2020-3-22
I did for some functions, but for the GUI programs i don't know of any other way to make the variables visible to and editable by several functions unless I start playing with inputs and outputs (since this is my first time experimenting with GUIs in matlab and in general, I'd like to leave most of the GUIDE-generated code as-is). For something like the variable that I want to display on the screen and update when the user pushes buttons on a calculator-like GUI, using a global variable seems to work exactly as intended.
Rik
Rik 2020-3-23
You can use the handles to the different GUIs to retrieve their guidata just before they close. I would suggest moveing away from GUIDE. It is probably holding you back in understanding how it works (although I can see from your edited down code in your question you seem to at least get the basics). If you want some helpful advice I would encourage you to check out this thread.
You could even consider a class-based GUI like my example in that thread if you want to preserve the input after the GUI has been closed.

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