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"
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6
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COPYRIGHT (c) 1989 by Claus Gittinger
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72
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All Rights Reserved
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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135
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TopView subclass:#PopUpView
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instanceVariableNames:'shadowView haveControl'
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classVariableNames:'DefaultShadow DefaultLevel DefaultBorderWidth
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DefaultBorderColor'
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poolDictionaries:''
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category:'Views-Basic'
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!
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PopUpView comment:'
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COPYRIGHT (c) 1989 by Claus Gittinger
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72
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All Rights Reserved
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54
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135
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$Header: /cvs/stx/stx/libview/PopUpView.st,v 1.11 1995-05-03 00:25:03 claus Exp $
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'!
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2
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!PopUpView class methodsFor:'documentation'!
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46
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copyright
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"
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COPYRIGHT (c) 1989 by Claus Gittinger
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72
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All Rights Reserved
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46
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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!
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version
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"
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135
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$Header: /cvs/stx/stx/libview/PopUpView.st,v 1.11 1995-05-03 00:25:03 claus Exp $
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46
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"
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!
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2
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documentation
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"
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this class implements an abstract superclass for all views which bypass the
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89
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window manager and pop up on top of the screen. A typical example is
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a PopUpMenu. PopUpView itself is abstract, providing basic mechanisms.
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They are not decorated by window managers.
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2
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styleSheet parameters:
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popupShadow <Boolean> if true, popupViews show a shadow below
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popupLevel <nil | Integer> 3D level
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popupBorderWidth <nil | Integer> borderWidth
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2
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"
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! !
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!PopUpView class methodsFor:'defaults'!
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defaultExtent
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^ (Display width // 3) @ (Display height // 3)
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!
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updateStyleCache
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ShadowView isNil ifTrue:[
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DefaultShadow := false
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] ifFalse:[
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DefaultShadow := StyleSheet at:'popupShadow' default:false.
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].
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DefaultLevel := StyleSheet at:'popupLevel'.
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DefaultBorderWidth := StyleSheet at:'popupBorderWidth'.
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DefaultBorderColor := StyleSheet colorAt:'popupBorderColor'.
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! !
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!PopUpView methodsFor:'initialize / release'!
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initialize
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super initialize.
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haveControl := false
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!
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initStyle
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super initStyle.
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StyleSheet is3D == true ifTrue:[
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borderWidth := 0.
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level := 2
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] ifFalse:[
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borderWidth := 1.
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level := 0
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].
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DefaultBorderColor notNil ifTrue:[
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self borderColor:(DefaultBorderColor on:device).
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].
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DefaultBorderWidth notNil ifTrue:[
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borderWidth := DefaultBorderWidth.
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].
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"/ DefaultEdgeStyle notNil ifTrue:[
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"/ edgeStyle := DefaultEdgeStyle.
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"/ ].
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DefaultLevel notNil ifTrue:[
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self level:DefaultLevel.
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].
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DefaultShadow ifTrue:[
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shadowView := (ShadowView onDevice:device) for:self.
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].
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!
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destroy
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haveControl := false.
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super destroy.
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shadowView notNil ifTrue:[shadowView destroy. shadowView := nil]
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!
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create
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super create.
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shadowView isNil ifTrue:[
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self saveUnder:true
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]
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! !
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!PopUpView methodsFor:'dispatching'!
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modalLoop
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haveControl := true.
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"this is a kludge - we do not have multiple processes, therefore
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we start another dispatch loop, which exits when control is lost"
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device dispatchFor:nil while:[haveControl]
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! !
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!PopUpView methodsFor:'private'!
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takeControl
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^ self.
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haveControl := true.
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"this is a kludge - we do not have multiple processes, therefore
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we start another dispatch loop, which exits when control is lost"
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device dispatchFor:drawableId while:[haveControl]
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!
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leaveControl
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haveControl := false
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!
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regainControl
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device grabPointerInView:self
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! !
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!PopUpView methodsFor:'activation'!
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show
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"realize the view at its last position"
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self fixSize.
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self openModal:[true] "realize "
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!
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showAt:aPoint resizing:aBoolean
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"realize the view at aPoint"
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aBoolean ifTrue:[
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self fixSize.
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].
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self origin:aPoint.
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self makeFullyVisible.
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self openModal:[true] "realize "
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!
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showAt:aPoint
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"realize the view at aPoint"
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self showAt:aPoint resizing:true
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!
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showCenteredIn:aView
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"make myself visible at the screen center."
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|top|
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top := aView topView.
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top raise.
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self showAt:(top origin
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+ (aView originRelativeTo:top)
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+ (aView extent // 2)
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- (self extent // 2))
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!
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showAtPointer
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"realize the view at the current pointer position"
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self showAt:(device pointerPosition) resizing:true
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!
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hide
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"hide the view, leave its modal event loop"
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windowGroup notNil ifTrue:[
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windowGroup removeView:self.
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windowGroup := nil.
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].
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self unrealize.
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! !
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!PopUpView methodsFor:'realize / unrealize'!
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mapped
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"wait till visible for grabbing"
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super mapped.
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haveControl ifTrue:[
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device grabPointerInView:self.
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]
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!
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realize
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shadowView notNil ifTrue:[shadowView realize].
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self raise.
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haveControl := true.
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super realize.
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!
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unrealize
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haveControl := false.
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device activePointerGrab == self ifTrue:[
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device ungrabPointer.
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].
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super unrealize.
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shadowView notNil ifTrue:[shadowView unrealize].
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! !
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!PopUpView methodsFor:'accessing'!
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noShadow
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"turn off the shadow"
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shadowView := nil
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!
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createOnTop
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^ true
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! !
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