Prevent script from execution until a condition is met. please!

I have designed a simple gui. This gui has a question and a Yes and a No answer. I want my script to pause when I call the gui and resume when the gui finishes executing. My gui is the following:

function handles = GUI(currfig)

g.fh = figure('units','pixels',...
    'position',[300 300 350 100],...
    'menubar','none',...
    'Color','w',...
    'name','Busbar Length Correction',...
    'numbertitle','off',...
    'resize','off',...
    'Interruptible','off');
g.sub=annotation('textbox',...
    'units','pixels',...
    'position',[0 0 350 100],...
    'Tag','box',...
    'Color',[58 51 153]/255,...
    'BackgroundColor','none',...
    'String','Delete the plot?',...
    'Fontsize',14,...
    'FaceAlpha',0,...
    'EdgeColor', [112 112 112]/255);
g.bg = uibuttongroup('units','pix',...
    'pos',[0 0 350 50],...
    'BorderType','line',...
    'ForegroundColor','w');

g.rd(1) = uicontrol(g.bg,...
    'style','push',...
    'unit','pix',...
    'position',[180 15 70 22],...
    'Fontsize',8,...
    'string','Yes');
g.rd(2) = uicontrol(g.bg,...
    'style','push',...
    'unit','pix',...
    'position',[260 15 70 22],...
    'Fontsize',8,...
    'string','No');
get(g.fh)

set(g.rd,'callback',{@hide,g,currfig});

function hide(varargin)
g = varargin{3};

str=[get(g.rd(1),'val'),get(g.rd(2),'val')];
if str(1)==1

          set(findobj('Tag','plota'),'visible','off')
          st='yes';
  else
          set(findobj('Tag','plota'),'visible','on')
          st='no';
  end

assignin('base','st',st)

close(g.fh)

and my script is the following.

h1=figure(1);
x=0:1:10;
s1=(x>=0 & x<=5);
s2=(x>5 & x<=10);
y(s1)=2.*x(s1)+5;
y(s2)=-2.*x(s2)+25;
figure(1);
hold all
a=plot(x(s1),y(s1),'color',[0 0.5 0]);
b=plot(x(s2),y(s2),'color',[0 0 1]);
% handlesa=get(findobj('Color', [0 0 1]));
set(findobj('Color', [0 0 1]),'Tag','plota');
set(findobj('Color', [0 0.5 0]),'Tag','plotb');
set(h1,'position',[13 715 180 101]);

GUI_(h1);

a=8;

I want to assign to the workspace the variable st as you see in the gui before the script executes the command:

a=8;

How difficult can it be????

[Giorgos Papakonstantinou]

anyone?

Answer 1

[per isakson]

"I want my script to pause"

• uiwait, Block program execution and wait to resume

Look up uiwait in the documentation.

[Giorgos Papakonstantinou]

indeed the easiest!

Answer 2

[Image Analyst]

For a yes/no question, why not just use questdlg?

promptMessage = sprintf('Is this a good way:\nYes,\nor No?');
titleBarCaption = 'Continue?';
button = questdlg(promptMessage, titleBarCaption, 'Yes', 'No', 'Yes');
if strcmpi(button, 'No')
  return;
end

[Giorgos Papakonstantinou]

I solved it finally yesterday by forcing an output in the first function: f

function  f= panel

and at the end of the same function: I defined f as the figure:

f=g.fh;

Then to my basic script I added

f=GUI_(h1)
waitfor(f)

I know about the questdlg but I want to learn also how to make a custom dialog box. Additionally, I believe that the purpose of this exercise is didactic. The certain example that I described above is simple, and what you proposed is sufficient, but in a more complex situation then I would need to create a gui myself. On the other hand the solution that I gave might not be the optimum so even if I solved it myself, I would like to hear other solutions.

Perhaps I could have done something inside the gui and not inside the script.

I hope that you understood my point. If you have another suggestion in the direction that I am suggesting I would be most interested to hear.

In any case I want to thank you for the time taking to answer my question.