function varargout = Example(varargin)
    % EXAMPLE MATLAB code for Example.fig
    %      EXAMPLE, by itself, creates a new EXAMPLE or raises the existing
    %      singleton*.
    %
    %      H = EXAMPLE returns the handle to a new EXAMPLE or the handle to
    %      the existing singleton*.
    %
    %      EXAMPLE('CALLBACK',hObject,eventData,handles,...) calls the local
    %      function named CALLBACK in EXAMPLE.M with the given input arguments.
    %
    %      EXAMPLE('Property','Value',...) creates a new EXAMPLE or raises the
    %      existing singleton*.  Starting from the left, property value pairs are
    %      applied to the GUI before Example_OpeningFcn gets called.  An
    %      unrecognized property name or invalid value makes property application
    %      stop.  All inputs are passed to Example_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 Example

    % Last Modified by GUIDE v2.5 23-May-2011 01:18:31

    % Begin initialization code - DO NOT EDIT
    gui_Singleton = 1;
    gui_State = struct('gui_Name',       mfilename, ...
                       'gui_Singleton',  gui_Singleton, ...
                       'gui_OpeningFcn', @Example_OpeningFcn, ...
                       'gui_OutputFcn',  @Example_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 Example is made visible.
function Example_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 Example (see VARARGIN)

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

    handles.timer = timer('TimerFcn', {@timer_Callback, hObject}, ...
                          'Period', 1, ...
                          'StartDelay', 2, ...
                          'ExecutionMode', 'fixedSpacing');
    start(handles.timer);

    % Update handles structure
    guidata(hObject, handles);

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


% --- Outputs from this function are returned to the command line.
function varargout = Example_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 when user attempts to close figure1.
function figure1_CloseRequestFcn(hObject, eventdata, handles)
    % hObject    handle to figure1 (see GCBO)
    % eventdata  reserved - to be defined in a future version of MATLAB
    % handles    structure with handles and user data (see GUIDATA)

    % Hint: delete(hObject) closes the figure
    stop(handles.timer);
    delete(handles.timer);
    
    delete(hObject);


% --- Executes on button press in btn1.
function btn1_Callback(hObject, eventdata, handles)
% hObject    handle to btn1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
while logical(mod(handles.timer.TasksExecuted,10))
   pause(0.2);
end
%     waitfor(handles.timer,'Period')
increment(hObject,1);


function timer_Callback(obj, eventdata, hObject)
handles = guidata(hObject);
%     handles.timerFcnActive = true;
    guidata(hObject, handles); 
    
%     for I = 1:10
%         pause(0.2);
        increment(hObject,2);
%     end
    
%     handles.timerFcnActive = false;
    guidata(hObject, handles);


function increment(hObject, position)

    handles = guidata(hObject);
    
    text = get(handles.txt1, 'String');
    numbers = sscanf(text, '%u - %u');
    
    numbers(position) = numbers(position)+1;
    if(numbers(position)==10)
        numbers(position) = 0;
    end
    
    text = sprintf('%u - %u',numbers);
    set(handles.txt1, 'String', text);
    
    guidata(hObject, handles);