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From: Jeff Higgins <jeff@invalid.invalid>
Newsgroups: comp.lang.java.programmer
Subject: Re: Disabling generated buttons
Date: Mon, 02 Feb 2015 20:42:53 -0500
Organization: A noiseless patient Spider
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On 02/02/2015 07:35 PM, Jeff Higgins wrote:
> On 02/02/2015 07:29 PM, Jeff Higgins wrote:
>> On 02/02/2015 02:25 PM, Cecil Westerhof wrote:
>>> Op Monday 2 Feb 2015 19:24 CET schreef FredK:
>>>>
>>>> The above add() saves the buttons, so now you are saving them in two
>>>> places. Presumably "this" is some kind of JPanel. The buttons you
>>>> added are available by calling this.getComponents()
>>>
>>> The buttons are on a JFrame, but there are other buttons also on
>>> the JFrame and only the Colour buttons should be disabled. That is why
>>> I use the array. But I look into a cleaner solution.
>>>
>> Another shrug.
>> Component.getClientProperty(Object key)
>> Component.putClientProperty(Object key, Object value)
>>
> But probably as expensive memory-wise as an array of references.
> And certainly more expensive code-complexity-wise.
>
You could use the button's text as a distinguishing feature,
but the way that you've shown:
new JButton("" + colour);
is guaranteed by the api to be implementation dependent.
My implementation sets the button text to "java.awt.Color[r=0,g=0,b=255]".
The complexity of a "smart" solution vs the small memory
overhead of the "dumb" solution.