GUI Examples #2: Explore simple string manipulation
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.
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