VisualComponent subclass:#VisualPart

	instanceVariableNames:'container'

	classVariableNames:''

	poolDictionaries:''

	category:'Graphics-Display Objects'

!

documentation

"

    abstract superclass for all kinds of visual components, which

    are containers for some other component.

    This class and its subclasses (currently) exist mostly for

    ST-80 compatibility - to provide a home for ported PD classes,

    which depend on the VisualPart hierarchy.

    Notice: 

        this class was implemented using protocol information

        from alpha testers and from the Hopkins/Horan book.

        - it may not be complete or compatible to the corresponding ST-80 class. 

        If you encounter any incompatibilities, please forward a note 

        describing the incompatibility verbal (i.e. no code) to the ST/X team.

        This is still being constructed - not yet finished.

    [author:]

        Claus Gittinger

    [see also:]

        GeometricWrapper

"

! !

!VisualPart methodsFor:'accessing'!

container

    "return my container"

    ^ container

    "Created: 9.5.1996 / 00:31:41 / cg"

    "Modified: 5.6.1996 / 01:08:26 / cg"

!

container:something

    "set container"

    container := something.

    "Created: 9.5.1996 / 00:31:41 / cg"

!

graphicsContext

    "return the graphicsContext"

    ^ container graphicsContext

    "Created: 9.5.1996 / 00:32:12 / cg"

    "Modified: 9.5.1996 / 01:37:10 / cg"

!

graphicsDevice

    "return the graphicsContext"

    ^ container graphicsDevice

    "Created: 9.5.1996 / 00:32:12 / cg"

    "Modified: 9.5.1996 / 01:37:03 / cg"

!

topComponent

    "return the top component - typically the topView"

    ^ container topComponent

    "Modified: 9.5.1996 / 01:37:10 / cg"

    "Created: 9.5.1996 / 01:39:15 / cg"

!

view

    "return my view"

    container isNil ifTrue:[^ nil].

    ^ container view

    "Created: 4.6.1996 / 21:32:34 / cg"

    "Modified: 5.6.1996 / 01:20:13 / cg"

! !

!VisualPart methodsFor:'view protocol mimicri'!

containerChangedSize

    "my container changed its size.

     The default here is to ignore this, but some wrappers like

     to resize when this happens."

    "Created: 4.6.1996 / 21:27:58 / cg"

! !

!VisualPart ignoredMethodsFor:'view protocol mimicri'!

create

    "want myself to be created."

    container create

    "Created: 4.6.1996 / 21:30:25 / cg"

!

realize

    "my container realized itself.

     The default here is to ignore this, but some wrappers like

     to do something when this happens."

    ^ self

    "Created: 4.6.1996 / 21:28:31 / cg"

! !

!VisualPart methodsFor:'view protocol mimicri'!

subViewChangedSize

    ^ self

    "Created: 4.6.1996 / 21:35:57 / cg"

!

windowGroup

    ^ container windowGroup

    "Created: 5.6.1996 / 00:49:19 / cg"

! !

version

! !