GUI adding elements in listbox
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Hello there. I m trying to create a gui. I firstly design it via guide command. I ve designed a list box and I was wandering how it is possible to add new elements in this listbox.
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Matt Fig
2011-5-17
function [] = GUI_2()
% Demonstrate how to add a new entry to a uicontrol string.
% Creates a listbox with some strings in it, an editbox and a pushbutton.
% User types some text into the editbox, then pushes the pushbutton. The
% user's text will be added to the top of the listbox.
%
% Suggested exercise: Modify the code so that hitting return after a
% string is typed performs the same task as pushing the pushbutton.
%
%
% Author: Matt Fig
% Date: 7/15/2009
S.fh = figure('units','pixels',...
'position',[500 500 200 300],...
'menubar','none',...
'name','GUI_2',...
'numbertitle','off',...
'resize','off');
S.ls = uicontrol('style','list',...
'unit','pix',...
'position',[10 110 180 180],...
'min',0,'max',2,...
'fontsize',14,...
'string',{'one';'two';'three';'four'});
S.ed = uicontrol('style','edit',...
'unit','pix',...
'position',[10 60 180 30],...
'fontsize',14,...
'string','New String');
S.pb = uicontrol('style','push',...
'units','pix',...
'position',[10 10 180 40],...
'fontsize',14,...
'string','Add String',...
'callback',{@ed_call,S});
function [] = ed_call(varargin)
% Callback for pushbutton, adds new string from edit box.
S = varargin{3}; % Get the structure.
oldstr = get(S.ls,'string'); % The string as it is now.
addstr = {get(S.ed,'string')}; % The string to add to the stack.
% The order of the args to cat puts the new string either on top or bottom.
set(S.ls,'str',{addstr{:},oldstr{:}}); % Put the new string on top -OR-
% set(S.ls,'str',{oldstr{:},addstr{:}}); % Put the new string on bottom.
3 个评论
Azzi Abdelmalek
2014-2-19
[Kris commented]
Ok what I looking for was easy i found it. My problem is that I using the code that was generated from guide. I ve created a textbox and a button and I want to parse the string from textbox to button
% --- Executes during object creation, after setting all properties.
function edit1_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit1 (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)
h1 = findobj('edit1', 'textbox1')
v1=get(h1,'String');
% input = get(hObject,'String');
disp(v1)
What can I do to parse the string without problems?
Azzi Abdelmalek
2014-2-19
[Kris commented]
Actually im trying this to parse a string from edit box to button so as to open a specific image.
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)
h=findobj('Tag','edit1');
input = get(h,'String');
input1 = strcat(input{1, 1}, '.jpg');
disp(input1);
I=imread( strcat(input{1, 1}, '.jpg'));
disp returns the real name of the picture but in imread i ve got this problem
Conversion to logical from cell is not possible.
Error in ==> imread at 342 if (strfind(filename, '://'))
Error in ==> untitled>pushbutton1_Callback at 85 I=imread( strcat(input{1, 1}, '.jpg'));
Error in ==> gui_mainfcn at 96 feval(varargin{:});
Error in ==> untitled at 42 gui_mainfcn(gui_State, varargin{:});
Error in ==> @(hObject,eventdata)untitled('pushbutton1_Callback',hObject,eventdata,guidata(hObject))
Azzi Abdelmalek
2014-2-19
[Kris commented]
I got. I had to convert cell inpu to string with function char. Now works. I want to ask sth else. In the same button i ve a command to imshow(it shows me a specific image in the background) a specific image but i want to imshow the image in a new window. What can I do?
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