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Re: widget_text [message #12006 is a reply to message #2051]

Thu, 18 June 1998 00:00

Phillip & Suzanne
Messages: 31
Registered: June 1998

Member

David Fanning wrote:
> Well, you're right. Putting this kind of functionality
> in a procedure in a good idea.

David, Lisa, and all;

I agree with the sentiment, but thought of another possibility, with IDL 5
having objects and all...

Make a message object, which contains a text widget. It could have an append
method that takes a text string, and performs all of the steps you mention.
In this fashion, you would not have to add all of this code everywhere.
Instead, you would just write something like:

(*state_ptr).message->append('my text')

where the append method would do all of the steps you were doing.

I realize that this is a similar solution to making a procedure for it, but it
allows the whole thing to be encapsulated (in good OO fashion), and would
allow the top line to be preserved as part of the object's data structure.
Without real effort, no one would be able to add DIRECTLY to the widget,
because it's encapsulated within a message object. Also, if you decided to
change the implementation of the message object some day (maybe when RSI
introduces another widget even better designed for this sort of purpose? :-),
changing the internals of your message object wouldn't affect the rest of your program.

A little food for thought...

Phillip David

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[Message index]

		widget_text By: joerg.plewe on Mon, 25 April 1994 06:22
		Re: widget_text By: Phillip & Suzanne on Thu, 18 June 1998 00:00
		Re: widget_text By: davidf on Sat, 13 June 1998 00:00
		Re: widget_text By: J.D. Smith on Sat, 13 June 1998 00:00
		Re: widget_text By: davidf on Fri, 12 June 1998 00:00
		Re: widget_text By: J.D. Smith on Fri, 12 June 1998 00:00
		Re: widget_text By: davidf on Wed, 10 June 1998 00:00
		Re: widget_text By: David Fanning on Thu, 21 February 2002 08:42

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