Re: Re: [platform-swt-dev] Some questions for the SWT developers

[Mike_Wilson@xxxxxxx]

You will find other places where SWT is "restricting and inflexible" compared to AWT. In every case, these restrictions represent actual, physical constraints placed on us because of our focus on efficient use of the platform widgets. Please try to work with SWT for a while. I believe you will find that the clear separation of o/s level issues from your application code (i.e. the fact that you have to deal with the o/s at *its* level when you are working with SWT, but you can build any abstractions you want on top of it) is one of the significant benefits of SWT. 

McQ.

dr_seltsam@xxxxxx Sent by: platform-swt-dev-admin@xxxxxxxxxxx 04/22/2002 08:52 AM Please respond to platform-swt-dev

To:        platform-swt-dev@xxxxxxxxxxx         cc:                 Subject:        Re: Re: [platform-swt-dev] Some questions for the SWT developers

Hello Patrick!


>From: "Patrick Mueller" <pmuellr@xxxxxxx>
>Date: Mon, 22 Apr 2002 07:48:01 -0400
>Delivered-to: platform-swt-dev@xxxxxxxxxxx
>
>addNotify / removeNotify are messages sent to AWT Components (and thus
Swing
>Components) to indicate when the o/s resource for the component is actually
>created/destroyed.  SWT doesn't need this, because it's Widgets are created
>in the constructor, and destroyed in dispose().  You know when you're
>calling the constructor, and there is a proper event for disposal so that
>you don't have to override a widget to get this info.
>
>In theory, AWT provides a more flexible architecture, where you can change
>the parent of a widget whenever you want.  In practice, this is almost
never
>used, it greatly complicates the actual implementation of the code (the AWT
>code).

Well, in practice I'm using "what is almost never used", because my
inherited Swing widgets are still beans with all its advantages. I don't think it is
a practical way to enhance a widget by bloating it's constructor. You may be
right that implementing a toolkit by using constructor parameters is easier
but I find it very restricting and inflexible to use this toolkit or inherit
from it.


Thank you for your answer,
Dr. Seltsam

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