[m-rev.] Xlib interface for extras

[Julien Fischer]

On Thu, 23 Sep 2004, Ralph Becket wrote:

> Ian MacLarty, Thursday, 23 September 2004:
> > This looks neat.  It also seems to work fine on Max OS X (I tested it).
>
> Excellent - thanks for testing that.
>
> > >% Angles, where used, are measured in radians.
> >
> > Personally I'd find degrees easier to use.  I find 45.0 is easier to
> > read than math.pi/4.0 - especially for this type of simple library.
>
> Umm, I think I'll stick to radians.  pi/4.0 isn't that bad and radians
> will interface better with any geometric code the user writes.
> Converting between degrees is a royal pain.
>
I agree.

>
> > >    % The left hand mouse button is usually number 1.
> > >    %
> > >:- type button == int.
> >
> > What about making this button1 ; button2 ; button3  or even left ;
> > middle ; right?  This might be useful when constructing switches on
> > which button was pressed.  Also a button variable having the value 999
> > is pretty meaningless.
>
> Well, at least five mouse buttons are supported and IIRC X is completely
> agnostic about the number of buttons a mouse can have.
>
How about something like:

	:- type button
		--->	left
		;	middle
		;	right
		;	other(int).

Julien.
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