function varargout = looop(varargin)
% LOOOP MATLAB code for looop.fig
%      LOOOP, by itself, creates a new LOOOP or raises the existing
%      singleton*.
%
%      H = LOOOP returns the handle to a new LOOOP or the handle to
%      the existing singleton*.
%
%      LOOOP('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in LOOOP.M with the given input arguments.
%
%      LOOOP('Property','Value',...) creates a new LOOOP or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before looop_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to looop_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help looop

% Last Modified by GUIDE v2.5 25-Nov-2013 23:00:42

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @looop_OpeningFcn, ...
                   'gui_OutputFcn',  @looop_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
% End initialization code - DO NOT EDIT


% --- Executes just before looop is made visible.
function looop_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to looop (see VARARGIN)

% Choose default command line output for looop
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes looop wait for user response (see UIRESUME)
% uiwait(handles.figure1);


set(handles.figure1, 'UserData',[]);
userData.stop = false;
set(handles.figure1, 'UserData',userData);

% --- Outputs from this function are returned to the command line.
function varargout = looop_OutputFcn(hObject, eventdata, handles) 
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;


% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
     
    n=1;
     moreWork = true;
     while moreWork
  
         n=n+1;
         set(handles.text1, 'String', n);
         pause(1) % damit man das ergebnis besser sieht
        .... busy work here
        .... if done, moreWork=false;
  
         %check if user hit STOP button
         userData = get(handles.figure1, 'UserData');
         if userData.stop == true
            userData.stop = false; %reset for next time
            set(handles.figure1,'UserData',userData);
            moreWork = false; %to stop the loop
         end
     end

% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

userData = get(handles.figure1, 'UserData');
userData.stop = true;
set(handles.figure1,'UserData',userData);