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Re: Problems with BasicComboBoxEditor

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On 15 Feb., 04:15, "John B. Matthews" <nos...@nospam.invalid> wrote:
> In article <87k43pw2dq....@bitburger.home.felix>,
>  Felix Natter <fnat...@gmx.net> wrote:
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> > I am using an editable ComboBox with BasicComboBoxEditor
> > (minimal example attached) with GTK or Nimbus L&Fs:
>
> >   JComboBox comboBox = new JComboBox();
> >   comboBox.setEditable(true);
> >   comboBox.setEditor(new BasicComboBoxEditor());
>
> > I am having two problems with this:
>
> > #1. the first character in the editable combobox (which uses a
> >     JTextField internally) cannot show the first letter completely (too
> >     few left padding, see attached minimal example)
>
> > #2. The Background color of the editable combo box is white
> >     (as opposed to normal comboboxes, which are grey, depending on L&F)
>
> > #1 can be worked around by using a MetalComboBoxEditor (without using
> >    metal L&F) instead of the BasicComboBoxEditor. I think this solution
> >    is satisfactory, but does there happen to be a better solution?
>
> > #2: Concerning the background color issue, I managed to change the
> >     background color of the JTextField:
>
> 1. One approach is to use a compound Border with a suitable left margin:
>
>     public ComboBoxEditorWithBGColor() {
>         Color c = UIManager.getColor("ComboBox.background");
>         editor.setBackground(c);
>         editor.setBorder(BorderFactory.createCompoundBorder(
>             editor.getBorder(), new EmptyBorder(0, 5, 0, 0)));
>     }

That is a perfect solution, don't you want to send this patch to sun/
oracle?
(the BasicComboBoxEditor seems like a real bug to me...)

> 2. Recycling the UI delegate's color(s) seems reasonable, but I'd urge
> minimal tinkering and maximal testing.
>
> Note that you don't need the defaults or a new Color each time, and
> Swing GUI objects should be constructed and manipulated only on the
> event dispatch thread:

Yes, this was just a quick+dirty program ;-)

Thanks a lot and Best Regards,

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Thread

Problems with BasicComboBoxEditor Felix Natter <fnatter@gmx.net> - 2012-02-14 22:06 +0100
  Re: Problems with BasicComboBoxEditor "John B. Matthews" <nospam@nospam.invalid> - 2012-02-14 22:15 -0500
    Re: Problems with BasicComboBoxEditor fnatter <fnatter@gmx.net> - 2012-02-18 10:45 -0800
      Re: Problems with BasicComboBoxEditor "John B. Matthews" <nospam@nospam.invalid> - 2012-02-18 21:44 -0500
  Re: Problems with BasicComboBoxEditor Lew <lewbloch@gmail.com> - 2012-02-15 09:45 -0800
    Re: Problems with BasicComboBoxEditor fnatter <fnatter@gmx.net> - 2012-02-18 10:46 -0800

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