Awesome.  Thank you very much.  It makes sense now that you've explained it..

On Wed, May 29, 2013 at 10:29 PM, Bob Arning <arning315 at comcast.net> wrote:
> compare the difference in these two:
>
> Morph new openInWorld;
>     color: Color red;
>     position: 20 at 100;
>     on: #mouseDown
>     send: #value
>     to: [(r _ RectangleMorph new extent: 500 at 500)
>     openInHand;
>     position: r center].
>
> Morph new openInWorld;
>     color: Color green;
>     position: 20 at 200;
>     on: #mouseUp
>     send: #value
>     to: [(r _ RectangleMorph new extent: 500 at 500)
>     openInHand;
>     position: r center].
>
> If you want to keep the big rectangle in hand, the red button requires you
> hold the mouse button continuously. The green button retains the big
> rectangle until you click. HandMorph simply waits for the next mouse up or
> down to drop the morphs it's holding.
>
> Cheers,
> Bob
>
>
>
> On 5/29/13 10:21 PM, Chris Muller wrote:
>
> Interesting.  I guess I thought that wouldn't work because it was
> "locked" to the hand based on its 'targetOffset' or something..
>
> Thanks a lot.  Although it seems to work there's one strange anomaly.
> For background, the action that causes #openInHand to be invoked is by
> the user left clicking on a button.  In your example, which is not
> invoked by a left click, the morph stays attached to the hand until I
> click it down.  With my openInHand: hack it seemed it would also stay
> attached without needing to hold down left button.  Very strange.
>
> Morphic is hard stuff.
>
> On Tue, May 28, 2013 at 5:56 PM, Bob Arning <arning315 at comcast.net> wrote:
>
> (r _ RectangleMorph new extent: 500 at 500)
>     openInHand;
>     position: r center
>
> Cheers,
> Bob
>
> On 5/28/13 6:05 PM, Chris Muller wrote:
>
> I'm using #openInHand, which opens my morph, centered under the hand.
> I want to open it in the hand, but attached near the upper left corner
> rather than the center.
>
> To do this, I factored the temp var "delta" calculation out of
> HandMorph>>#attachMorph:, so it would take an argument instead,
> attachMorph: aMorph at: delta.  Regular attachMorph now calls it
> passing in the center point.
>
> Now I have an attach API that accepts an offset, guess I just need to
> support openInHand: offset to call the new #attachMorph:at:.
>
> (Sigh) It works but is there a better way to do this?
>
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