compandexpo.m

非常好的数字处理教程

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

% Last Modified by GUIDE v2.5 20-Nov-2005 17:22:11

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

% Choose default command line output for compandexpo
	handles.output = hObject;
	guidata(hObject, handles);
	set(gcf,'UserData',handles);
	compandexpofn;

	if (nargin > 3)
		datastruct = varargin{1};
		compandexpofn('readinput',datastruct);
	end

% --- Outputs from this function are returned to the command line.
function varargout = compandexpo_OutputFcn(hObject, eventdata, handles)
	varargout{1} = handles.output;

% --------------------------------------------------------------------
function FileMenu_Callback(hObject, eventdata, handles)


% --------------------------------------------------------------------
function PrintMenuItem_Callback(hObject, eventdata, handles)
	compandexpofn 'print';

% --------------------------------------------------------------------
function CloseMenuItem_Callback(hObject, eventdata, handles)
	compandexpofn 'close';


% --------------------------------------------------------------------
function apply_Callback(hObject, eventdata, handles)
% hObject    handle to apply (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
		compandexpofn 'apply';

% --------------------------------------------------------------------
function help_Callback(hObject, eventdata, handles)
% hObject    handle to help (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
    compandexpofn 'help';


% --- Executes when compandexpo_fig window is resized.
function compandexpo_fig_ResizeFcn(hObject, eventdata, handles)
% hObject    handle to compandexpo_fig (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
    compandexpofn 'resize';

% --- Executes on selection change in pdfmenu.
function pdfmenu_Callback(hObject, eventdata, handles)
% hObject    handle to pdfmenu (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 pdfmenu contents as cell array
%        contents{get(hObject,'Value')} returns selected item from pdfmenu
		compandexpofn 'pdfupdate';


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

% Hint: popupmenu controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end


function levels_Callback(hObject, eventdata, handles)
% hObject    handle to levels (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of levels as text
%        str2double(get(hObject,'String')) returns contents of levels as a double
		
		test = floor(abs(str2num(get(hObject,'String'))));
		if test > 0
			set(hObject,'String',num2str(test));
		else
			set(hObject,'String',num2str(1));
		end
		compandexpofn	'sqnrupdate';

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

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



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

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

function maxx_Callback(hObject, eventdata, handles)
% hObject    handle to maxx (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of maxx as text
%        str2double(get(hObject,'String')) returns contents of maxx as a double
		test = abs(str2num(get(hObject,'String')));
		set(hObject,'String',num2str(test));	
		compandexpofn	'sqnrupdate';

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

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



function mu_Callback(hObject, eventdata, handles)
% hObject    handle to mu (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of mu as text
%        str2double(get(hObject,'String')) returns contents of mu as a double
		test = abs(str2num(get(hObject,'String')));
		set(hObject,'String',num2str(test));	
		compandexpofn	'sqnrupdate';

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

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end


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

% Hint: get(hObject,'Value') returns toggle state of holdon


% --- Executes on selection change in compmenu.
function compmenu_Callback(hObject, eventdata, handles)
% hObject    handle to compmenu (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 compmenu contents as cell array
%        contents{get(hObject,'Value')} returns selected item from compmenu
		contents = get(hObject,'String');
		switch lower(contents{get(hObject,'Value')})
			case 'mu-law'
				set(handles.compstring,'String','mu');
			case 'a-law'
				set(handles.compstring,'String','A');
		end
		compandexpofn	'sqnrupdate';

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

% Hint: popupmenu controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end


% --- Executes on selection change in quantmenu.
function quantmenu_Callback(hObject, eventdata, handles)
% hObject    handle to quantmenu (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 quantmenu contents as cell array
%        contents{get(hObject,'Value')} returns selected item from quantmenu
		compandexpofn	'sqnrupdate';

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

% Hint: popupmenu controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end