function varargout = guiTestV2(varargin)
% GUITESTV2 M-file for guiTestV2.fig
%      GUITESTV2, by itself, creates a new GUITESTV2 or raises the existing
%      singleton*.
%
%      H = GUITESTV2 returns the handle to a new GUITESTV2 or the handle to
%      the existing singleton*.
%
%      GUITESTV2('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in GUITESTV2.M with the given input arguments.
%
%      GUITESTV2('Property','Value',...) creates a new GUITESTV2 or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before guiTestV2_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to guiTestV2_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 guiTestV2

% Last Modified by GUIDE v2.5 28-Apr-2010 15:40:46

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @guiTestV2_OpeningFcn, ...
                   'gui_OutputFcn',  @guiTestV2_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 guiTestV2 is made visible.
function guiTestV2_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 guiTestV2 (see VARARGIN)

% Choose default command line output for guiTestV2
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);


% UIWAIT makes guiTestV2 wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = guiTestV2_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 selection change in targetFunc.
function targetFunc_Callback(hObject, eventdata, handles)
% hObject    handle to targetFunc (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

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


% --- Executes during object creation, after setting all properties.
function targetFunc_CreateFcn(hObject, eventdata, handles)
% hObject    handle to targetFunc (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 Amp_Callback(hObject, eventdata, handles)
% hObject    handle to Amp (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 Amp as text
%        str2double(get(hObject,'String')) returns contents of Amp as a double


% --- Executes during object creation, after setting all properties.
function Amp_CreateFcn(hObject, eventdata, handles)
% hObject    handle to Amp (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 freq_Callback(hObject, eventdata, handles)
% hObject    handle to freq (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 freq as text
%        str2double(get(hObject,'String')) returns contents of freq as a double


% --- Executes during object creation, after setting all properties.
function freq_CreateFcn(hObject, eventdata, handles)
% hObject    handle to freq (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 PhaseShift_Callback(hObject, eventdata, handles)
% hObject    handle to PhaseShift (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 PhaseShift as text
%        str2double(get(hObject,'String')) returns contents of PhaseShift as a double


% --- Executes during object creation, after setting all properties.
function PhaseShift_CreateFcn(hObject, eventdata, handles)
% hObject    handle to PhaseShift (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 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)

Amp = str2double(get(handles.Amp, 'String'));
Freq = str2double(get(handles.freq, 'String'));
PhaseShift = str2double(get(handles.PhaseShift, 'String'));
endTime = str2double(get(handles.endTime, 'String'));
count = str2double(get(handles.count, 'String'));
contents = cellstr(get(handles.targetFunc, 'String'));
TargetFunc = contents{get(handles.targetFunc, 'Value')};

set(handles.endTime, 'enable', 'off')

if (count>=0)&&(count<=3)&&(Amp~=0)&&(Freq~=0)
    errorCode = 1;
    count = count + 1;
    set(handles.count, 'String', count);
    preEqu = get(handles.dispEqu, 'String');
    if strcmp(preEqu, 'Nothing')
        preEqu = '';
    else
        preEqu = eval([' '' ' preEqu ' + '' ']);
    end
    reEqu = eval([''' ' preEqu '' num2str(Amp) '*' TargetFunc '(2*pi*' num2str(Freq) '*t +' num2str(PhaseShift) ') ''']);
    set(handles.dispEqu, 'String', reEqu);

    t = 0:0.01:endTime;
    y = subs(reEqu, 't', t, 0);
    
    plot(handles.axes1, t, y)
    set(handles.axes1, 'xlim', [0 endTime], 'ylim', [min(y) max(y)]*1.1, 'xgrid', 'on', 'ygrid', 'on')
    
elseif count>3
    errorCode = 2;
elseif Amp==0
    errorCode = 3;
elseif Freq==0
    errorCode = 4;
end

ErrorMsg = {{'Correct Expression'}
    {'Too many terms'}
    {'Amplitute is ''0'''}
    {'Frequency is ''0'''}};

set(handles.ErrorCode, 'String', ErrorMsg{errorCode});

function dispEqu_Callback(hObject, eventdata, handles)
% hObject    handle to dispEqu (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 dispEqu as text
%        str2double(get(hObject,'String')) returns contents of dispEqu as a double


% --- Executes during object creation, after setting all properties.
function dispEqu_CreateFcn(hObject, eventdata, handles)
% hObject    handle to dispEqu (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 endTime_Callback(hObject, eventdata, handles)
% hObject    handle to endTime (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 endTime as text
%        str2double(get(hObject,'String')) returns contents of endTime as a double


% --- Executes during object creation, after setting all properties.
function endTime_CreateFcn(hObject, eventdata, handles)
% hObject    handle to endTime (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 count_Callback(hObject, eventdata, handles)
% hObject    handle to count (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 count as text
%        str2double(get(hObject,'String')) returns contents of count as a double


% --- Executes during object creation, after setting all properties.
function count_CreateFcn(hObject, eventdata, handles)
% hObject    handle to count (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 ErrorCode_Callback(hObject, eventdata, handles)
% hObject    handle to ErrorCode (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 ErrorCode as text
%        str2double(get(hObject,'String')) returns contents of ErrorCode as a double


% --- Executes during object creation, after setting all properties.
function ErrorCode_CreateFcn(hObject, eventdata, handles)
% hObject    handle to ErrorCode (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