"
COPYRIGHT (c) 2002 by eXept Software AG
All Rights Reserved
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
"
"{ Package: 'stx:libview2' }"
VisualComponent subclass:#VisualPart
instanceVariableNames:'container'
classVariableNames:''
poolDictionaries:''
category:'Compatibility-ST80-Graphics-Display Objects'
!
!VisualPart class methodsFor:'documentation'!
copyright
"
COPYRIGHT (c) 2002 by eXept Software AG
All Rights Reserved
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
"
!
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, from reading PD programs 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'!
backgroundColor
^ container backgroundColor
"Created: / 18.6.1998 / 15:58:34 / cg"
!
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'!
bottomInset
^ 0
!
computeExtent
^ self extent
!
computeOrigin
^ self origin
!
containerChangedSize
"my container changed its size.
The default here is to ignore this, but some wrappers like
to resize when this happens."
"/Transcript show:'container '; show:container; show:' of '; show:self;
"/ show:' changed size to '; showCR:container viewRectangle.
self bounds:container viewRectangle.
self invalidate.
"Created: 4.6.1996 / 21:27:58 / cg"
"Modified: 19.7.1996 / 21:20:58 / cg"
!
cornerRule
^ nil
!
create
"want myself to be created."
container create
"Created: 4.6.1996 / 21:30:25 / cg"
!
destroy
|c|
(c := container) notNil ifTrue:[
container := nil.
c invalidate:self bounds.
c removeComponent:self.
].
!
device
^ container device
!
extentRule
^ nil
!
invalidate
container notNil ifTrue:[
container invalidate:self bounds
]
"Modified: / 18.6.1998 / 16:12:15 / cg"
!
isComponentOf:aViewOrComponent
"return true, if I am a (direct or indirect) component of aViewOrComponent"
|sview|
sview := self.
[ (sview := sview container) notNil ] whileTrue:[
sview == aViewOrComponent ifTrue:[^ true].
].
^ false
!
leftInset
^ 0
!
originRelativeTo:aContainer
"return the origin (in pixels) relative to a superView,
or relative to the rootView (if the aView argument is nil).
If the receiver is nonNil and not a subview of aView, return nil."
|currentPart
bw "{ Class: SmallInteger }"
sumX "{ Class: SmallInteger }"
sumY "{ Class: SmallInteger }"|
currentPart := self.
sumX := 0.
sumY := 0.
[currentPart notNil] whileTrue:[
(currentPart == aContainer) ifTrue:[
^ (sumX @ sumY)
].
bw := currentPart borderWidth.
sumX := sumX + (currentPart left) + bw.
sumY := sumY + (currentPart top) + bw.
currentPart := currentPart superView
].
(aContainer isNil or:[aContainer == self graphicsDevice rootView]) ifTrue:[
"return relative to screen ..."
^ (sumX @ sumY)
].
^ nil
!
originRule
^ nil
!
realize
"my container realized itself.
The default here is to ignore this, but some wrappers like
to do something when this happens."
self realizeAllSubViews
"Created: / 4.6.1996 / 21:28:31 / cg"
"Modified: / 6.7.1998 / 18:38:28 / cg"
!
realizeAllSubViews
"realize all my subviews - but not myself."
^ self
"Created: / 6.7.1998 / 18:37:08 / cg"
!
relativeCorner
^ nil
!
relativeExtent
^ nil
!
relativeOrigin
^ nil
!
rightInset
^ 0
!
shown
container isNil ifTrue:[^ false].
^ container shown
!
subViewChangedSize
^ self
"Created: 4.6.1996 / 21:35:57 / cg"
!
topInset
^ 0
!
topView
^ container topView
!
windowGroup
^ container windowGroup
"Created: 5.6.1996 / 00:49:19 / cg"
!
withAllSubViewsDo:aBlock
aBlock value:self
! !
!VisualPart class methodsFor:'documentation'!
version
^ '$Header: /cvs/stx/stx/libview2/VisualPart.st,v 1.13 2009-05-08 11:48:00 cg Exp $'
! !