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World PasteUpMorph object (data structure)
Last updated at 7:29 am UTC on 2 July 2018
The data structure kept in the World variable follows the Composite pattern.

'The Design Patterns Smalltalk Companion' by Alpert, Brown, Woolf, p. 137: Composite pattern.


To get an array with the components of a Morph you send it the message 'submorphs'.

A red-click anywhere on the desktop (thus on the the instance of PasteUpMorph kept in World) brings up an instance of Dynamic open menu.

See also