function uiWidth = largestuiwidth(strs,uiStyle)
% LARGESTEUIWIDTH Return the uicontrol extent width of the largest string in
%                 the input cell array of strings.
%                 A fudge factor is added for popups and radio buttons to
%                 compensate for the triangle on the popup and the circle on
%                 the radio button.
% Inputs:
%   strs - cell array of strings.
%   uiStyle - uicontrol style.
%
% Output:
%   uiWidth -  the uicontrol extent width.

%   Author(s): P. Pacheco
%   Copyright 1988-2004 The MathWorks, Inc.
%   $Revision: 1.7.4.3 $  $Date: 2004/06/06 17:07:17 $

if nargin == 1, uiStyle = 'Text'; end

if iscellstr(strs)

    % Get the current figure from the root object that does not use the default
    % menubar.  If the default menubar is on a figure and we add then delete a
    % control the menubar will flicker. g
    hFig = findall(0, 'type','figure', 'menubar','none');
    delete_fig = false;

    % If there is no figure available create an invisible one and change the
    % delete flag to true.
    if isempty(hFig),
        delete_fig = true;
        hFig = figure('visible', 'off');
    else
        hFig = hFig(1);
    end

    % Determine the uiextent for the largest (or only) string.
    temp_h = uicontrol(hFig, 'style','Text','visible','off','string',strs);
    uiExtent = get(temp_h,'extent');
    uiWidth  = uiExtent(3);
    delete(temp_h);

    % If we created the figure, delete it.
    if delete_fig, delete(hFig); end
else
    ext = get(strs, 'Extent');
    if iscell(ext)
        ext = [ext{:}];
        uiWidth = max(ext(3:4:end));
    else
        uiWidth = ext(3);
    end
end

switch uiStyle
    case {'popup','radiobutton','checkbox'},
        % Add 21 to the width because these uis have part of the control
        % that doesn't display the text, e.g. the triangle in the popup.
        uiWidth = uiWidth+21;
    case 'pushbutton',
        % Add a fudge factor to the width so that the string doesn't end at
        % the very edge of the pushbuton.
        uiWidth = uiWidth+4;
end

% [EOF] largestuiwidth.m