Changing color of a string in listbox - MATLAB GUI

Question

Vincent I 2012-6-14

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/41173-changing-color-of-a-string-in-listbox-matlab-gui

I have a list of names in a listbox. What I would like to do is have a certain selected name change color, from red to green, when I click a button.

Thank you

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Walter Roberson 2012-6-14

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/41173-changing-color-of-a-string-in-listbox-matlab-gui#answer_50769

在 MATLAB Online 中打开

Don't add the name directly: add the HTML-ized version of the name.

htmlname = sprintf('<HTML><BODY bgcolor="%s">%s', 'red', ThisEntryName);

And in the callback:

namestr = cellstr(get(hObject, 'String'));
validx = get(hObject, 'Value');
newstr = regexprep(namestr{validx}, '"red"','"green"');
namestr{validx} = newstr;
set(hObject, 'String', namestr);

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Walter Roberson 2012-6-14

Thanks for catching that; I have edited the correction in.

请先登录，再进行评论。

Answer 2

Tom 2012-6-14

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/41173-changing-color-of-a-string-in-listbox-matlab-gui#answer_50758

You can do it with html- see http://undocumentedmatlab.com/blog/html-support-in-matlab-uicomponents/

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

Answer 3

Vincent I 2012-6-14

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/41173-changing-color-of-a-string-in-listbox-matlab-gui#answer_50765

I have already looked at this article and unfortunately it doesnt work for what i want to do...

in the listbox with the names i can either add or delete the names.

the html method would not work for me

any other ideas? thank you

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Dr. Seis 2012-6-14

What you are generally describing above should work with HTML... can you post a few pictures of what you envision? Or can you post the cell-string you are using to apply to the listbox... there might be a formatting issue that is preventing it from working.

请先登录，再进行评论。

Answer 4

Vincent I 2012-6-18

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/41173-changing-color-of-a-string-in-listbox-matlab-gui#answer_51029

Walter, i'm not sure what do you mean or what to do with this line or where to add it. By name do you mean string name or listbox name?

Don't add the name directly: add the HTML-ized version of the name.

htmlname = sprintf('<HTML><BODY bgcolor="%s">%s', 'red', ThisEntryName);

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Jan 2012-6-18

@Vincent: You wrote "I have a list of names". Then just add the HTML stuff to one of the names to get it colored.

请先登录，再进行评论。

Answer 5

Vincent I 2012-6-18

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/41173-changing-color-of-a-string-in-listbox-matlab-gui#answer_51067

What i ended up doing is this:

contents = cellstr(get(handles.Names_Listbox,'String'));

NewText = contents{get(handles.Names_Listbox,'Value')};

NewColor = sprintf('<HTML><BODY bgcolor="%s">%s', 'green', NewText);

set(handles.Names_Listbox,'Value',[])

set(handles.Names_Listbox, 'String', cat(1, get(handles.Names_Listbox,'String'), NewColor))

it works great THANK YOU. however, is there a way to move the new colored text to either the top of the list or to stay in the same place that it was initially?

Walter, I tried to follow your exemple in the callback but for some reason didnt do anything for me.

Thank you