<Swing Dev> Background/Foreground colors and Gtk Look and Feel

[Joshua Marinacci]

If we wish to support custom components that try to fit in with the  
native look and feels (which I think is your goal, right? To use a  
textpane for a fancy label?), then the look and feel should pre- 
populate the defaults table with the right colors. Then other 3rd  
party code and query that table when trying to do the right thing.   
This still means that the native L&F can ignore setBackground, but at  
least you'll be able to make your own code respect colors properly.

- Josh

On Jan 22, 2009, at 1:21 PM, Joel Uckelman wrote:

> Hi,
>
> I'm the guy who reported the bug which Omair was referring to. The  
> context
> in which in which I noticed that the GTK L&F ignores setBackground()  
> is
> that I was subclassing JTextPane in order to get a label which would  
> support
> both word wrap and full justification of text. In this case, the  
> correct
> background color is really not what the theme thinks the background  
> color
> should be for a JTextPane, but rather what the theme thinks the  
> background
> color should be for a JLabel.
>
> This kind of policy makes the uses to which components can be put  
> very narrow
> if you're using a native L&F. To be clear: What I want to achieve is  
> to have
> this component of mine to have the same background color as a  
> JLabel, because
> it *is* functionally a JLabel, despite that it inherits from  
> JTextPane. I'm not
> trying to circumvent the color scheme provided by the L&F here, I'm  
> trying to
> follow it---so it's very disheartening to read the replies on this  
> thread.
>
> If the intended behavior of native L&Fs is to ignore  
> setBackground(), then
> what's the right way to do what I'm trying to do?
>
> -- 
> J.