[Newbies] Morphic event-handling confusion

[stephane ducasse]

could you sahre your result?
May be publish it on Squeaksource.com?

Stef
On 18 mars 07, at 07:27, max at nbtsc.org wrote:

> Thanks, I already got it working, which was in fact a very  
> satisfying experience. My previous failure was using a  
> "handlesMousedown" method, rather than "handlesMouseDown:evt"  
> method. An important distinction.
>
> Sent via BlackBerry from T-Mobile
>
> -----Original Message-----
> From: Michael van der Gulik <mikevdg at gulik.co.nz>
> Date: Sat, 17 Mar 2007 17:45:07
> To:"A friendly place to get answers to even the most basic  
> questions aboutSqueak." <beginners at lists.squeakfoundation.org>
> Subject: Re: [Newbies] Morphic event-handling confusion
>
> Max OrHai wrote:
>
>>
>>
>>> handlesMouseStillDown: evt
>>>    ^ true
>>>
>>> mouseStillDown: evt
>>>    self position: evt hand position.
>>>
>>>
>>
>> These apparently don't do anything. But, that's OK, because I can, as
>> Bert suggested, just send "evt hand #grabMorph: self".
>>
>> Except, oops, that's NOT OK, because now mouseUp: apparently never  
>> gets
>> sent to my Morph.
>>
>> So, I still need help. Thank you both very much.
>>
>>
> They "worked for me" - I was dragging a Morph around, and had readouts
> for the start and end positions of the dragging. Try making a  
> completely
> fresh subclass of Morph with only the methods I suggested. I used  
> Squeak
> 3.9.
>
> If I was going to implement momentum, I'd take the current position on
> mouseUp: and the position received by the very latest mouseStillDown:,
> and work out which vector the puck should travel in from that. I  
> suppose
> you'd also need the times of those two events as well to calculate the
> velocity vector.
>
> Michael.
> _______________________________________________
> Beginners mailing list
> Beginners at lists.squeakfoundation.org
> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>
> _______________________________________________
> Beginners mailing list
> Beginners at lists.squeakfoundation.org
> http://lists.squeakfoundation.org/mailman/listinfo/beginners