MATLAB: New lines from an edit text component

cell arrayedit textguiguide

Hi,

I am building a small gui using GUIDE and have a multiline edit text box. I would like to consider each line seperately. Is it possible to obtain the string in the edit box as a cell array with an element for each line?

Best Answer

Assuming h is the handle to your uicontrol ...

s = get(h, 'string');
scell = mat2cell(s, ones(size(s, 1), 1), size(s, 2));

Related Solutions

MATLAB: How to switch between multiline edit text box to single line edit text box

If the String property of a uicontrol style text String property has been set to a cell array of characters with more than one entry, or if the String property has been set to a character vector that includes one or more newline characters, or if the String property has been set to a character array with more than one row, then when you set the Max property to 1, you will see an error message similar to

Warning: Single line Edit Controls can not have multi-line text

and the uicontrol will disappear.

The only workaround is "Don't do that!" . Or switch to Java components.

new_numlines = str2double(get(handles.edittextbox1,'String'));
current_content = cellstr(get(handles.edittextbox2, 'String'));
curlen = length(current_content);
if curlen < new_numlines
  current_content{new_numlines} = '';   %other entries will fill in [] automatically
else
  current_content(new_numlines+1:end) = [];  %delete any excess
end
set(handles.edittextbox2, 'Max', new_numlines, 'String', current_content);

MATLAB: Is it possible to use multiple lines of text in the ‘String’ Property of a uicontrol

In MATLAB 6.1 (R12.1), it is possible to define multiline strings for the following uicontrols:

   STYLE
   -----
   edit
   text
   popupmenu
   listbox

For multiple items on a pop-up menu or a list box, items can be specified as a cell array of strings, a padded string matrix, or within a string vector separated by vertical slash ('|') characters.

For multiple line editable text or static text controls, line breaks occur between each row of the string matrix, each cell of a cell array of strings, and after any \n characters embedded in the string. Vertical slash ('|') characters are not interpreted as linebreaks, and instead show up in the text displayed in the uicontrol.

For the remaining uicontrol styles, which display only one line of text, only the first string of a cell array of strings or of a padded string matrix is displayed; all the rest are ignored. Vertical slash ('|') characters are not interpreted as linebreaks and instead show up in the text displayed in the Uicontrol.

Below is an example of how to force a text string to wrap to the next line:

A = cell(1,2);  
A{1,1} = 'hello';                                                           
A{1,2} = 'there';                                                           
mls = sprintf('%s\n%s',A{1,1},A{1,2});
h= uicontrol('Style','Edit','String',mls,'Position',[10 200 75 100],'Max',2);
h= uicontrol('Style','Text','String',mls,'Position',[10 80 75 100],'Max',2)

Best Answer

Related Solutions

MATLAB: How to switch between multiline edit text box to single line edit text box

MATLAB: Is it possible to use multiple lines of text in the ‘String’ Property of a uicontrol

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