function varargout = GUI_1(varargin)
% GUI_1 Application M-file for GUI_1.fig
%   GUI_1, by itself, creates a new GUI_1 or raises the existing
%   singleton*.
%
%   H = GUI_1 returns the handle to a new GUI_1 or the handle to
%   the existing singleton*.
%
%   GUI_1('CALLBACK',hObject,eventData,handles,...) calls the local
%   function named CALLBACK in GUI_1.M with the given input arguments.
%
%   GUI_1('Property','Value',...) creates a new GUI_1 or raises the
%   existing singleton*.  Starting from the left, property value pairs are
%   applied to the GUI before GUI_1_OpeningFunction gets called.  An
%   unrecognized property name or invalid value makes property application
%   stop.  All inputs are passed to GUI_1_OpeningFcn via varargin.
%
%   *See GUI Options - GUI allows only one instance to run (singleton).
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Copyright 2000-2002 The MathWorks, Inc.

% Edit the above text to modify the response to help GUI_1

% Last Modified by GUIDE v2.5 02-Aug-2005 14:58:40

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',          mfilename, ...
                   'gui_Singleton',     gui_Singleton, ...
                   'gui_OpeningFcn',    @GUI_1_OpeningFcn, ...
                   'gui_OutputFcn',     @GUI_1_OutputFcn, ...
                   'gui_LayoutFcn',     [], ...
                   'gui_Callback',      []);
if nargin & isstr(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 GUI_1 is made visible.
function GUI_1_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 GUI_1 (see VARARGIN)

% Choose default command line output for GUI_1
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

if nargin == 3,
    initial_dir = pwd;
elseif nargin > 4
    if strcmpi(varargin{1},'dir')
        if exist(varargin{2},'dir')
            initial_dir = varargin{2};
        else
            errordlg('Input argument must be a valid directory','Input Argument Error!')
            return
        end
    else
        errordlg('Unrecognized input argument','Input Argument Error!');
        return;
    end
end
% Populate the listbox
load_listbox(initial_dir,handles)
% Return figure handle as first output argument
    
% UIWAIT makes GUI_1 wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = GUI_1_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;

% ------------------------------------------------------------
% Callback for list box - open .fig with guide, otherwise use open
% ------------------------------------------------------------
function varargout = listbox1_Callback(h, eventdata, handles)
% hObject    handle to listbox1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: contents = get(hObject,'String') returns listbox1 contents as cell array
%        contents{get(hObject,'Value')} returns selected item from listbox1

get(handles.figure1,'SelectionType');
if strcmp(get(handles.figure1,'SelectionType'),'open')
	index_selected = get(handles.listbox1,'Value');
	file_list = get(handles.listbox1,'String');	
	filename = file_list{index_selected};
		cd (filename)
		load_listbox(pwd,handles)
end
% ------------------------------------------------------------
% Read the current directory and sort the names
% ------------------------------------------------------------
function load_listbox(dir_path,handles)
cd (dir_path)
dir_struct = dir(dir_path);
ind = 1;
n_files=size(dir_struct,1);
 for i = 1:n_files 
    if (dir_struct(i).isdir && ~strcmp(dir_struct(i).name,'CVS'))  
      dir_names{ind} = dir_struct(i).name;
      ind = ind + 1;
    end
 end    
    
handles.file_names = dir_names;
guidata(handles.figure1,handles)
set(handles.listbox1,'String',handles.file_names,...
	'Value',1)
set(handles.text1,'String',pwd)


% --- Executes during object creation, after setting all properties.
function listbox1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to listbox1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: listbox controls usually have a white background, change
%       'usewhitebg' to 0 to use default.  See ISPC and COMPUTER.
usewhitebg = 1;
if usewhitebg
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end


% --- Executes during object creation, after setting all properties.
function figure1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to figure1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Add the current directory to the path, as the pwd might change thru' the
% gui. Remove the directory from the path when gui is closed 
% (See figure1_DeleteFcn)
setappdata(hObject, 'StartPath', pwd);
addpath(pwd);


% --- Executes during object deletion, before destroying properties.
function figure1_DeleteFcn(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)

% Remove the directory added to the path in the figure1_CreateFcn.
if isappdata(hObject, 'StartPath')
    rmpath(getappdata(hObject, 'StartPath'));
end



% --- 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)
	index_selected = get(handles.listbox1,'Value');
	dir_list = get(handles.listbox1,'String');	
	new_dir = dir_list{index_selected};
    
cd (new_dir);
close(GUI_1);

% --- 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)

close(GUI_1);
