[squeak-dev] Event handling challenges

K K Subbu kksubbu.ml at gmail.com
Mon Jun 15 15:16:04 UTC 2020

On 15/06/20 6:55 pm, Trygve Reenskaug wrote:

>     joe := PasteUpMorph new color: Color lightBlue.
>     joe bounds: (500 at 400 corner: 800 at 600).
>     joe dropEnabled: true.
> I move some background window,  actually a collapsed Monticello thing, 
> to Joe's position, Joe grabs it and makes it into a submorph. Any hints 
> about how to proceed will be greatly appreciated.

PasteUpMorph is designed to grab morphs. It overrides mouseDown: method 
in Morph to try and grab whatever morph is dropped into it (unless it is 
in PartsBin).

You could use RectangleMorph or BorderedMorph to avoid grabbing.

HTH .. Subbu

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