author | Claus Gittinger <cg@exept.de> |
Wed, 17 Feb 1999 01:09:13 +0100 | |
changeset 1103 | b98a73cd2ed1 |
parent 1102 | 1ee9a1bc9241 |
child 1567 | 968c81db4d2c |
permissions | -rw-r--r-- |
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" |
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COPYRIGHT (c) 1999 by eXept Software AG |
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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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TopView subclass:#ExternalTopView |
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instanceVariableNames:'' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'Graphics-Support' |
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! |
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!ExternalTopView class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1999 by eXept Software AG |
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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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! |
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documentation |
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" |
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Represents a view as created by some other application. |
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This is a support-class to allow ST/X views to be created |
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inside other applications. |
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A simple demoApplication is found in goodies/stxInExternalWindow |
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(which uses Demos::PlayInAlienWindow as a startup anchor) |
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[author:] |
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Claus Gittinger (cg@exept.de) |
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[see also:] |
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[instance variables:] |
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none added here |
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[class variables:] |
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none added here |
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" |
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! ! |
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!ExternalTopView class methodsFor:'instance creation'! |
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newWithID:anAlienWindowID |
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"create and return a new externalTopView - the windowID |
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as passed in must be from an alien programs view" |
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^ self new setWindowID:anAlienWindowID |
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! ! |
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!ExternalTopView methodsFor:'private'! |
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checkWindowStillAlive |
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"check for a destroyed topView |
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(must poll, since we do not get any events from X)" |
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|prevHandler ok| |
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"/ Transcript showCR:'check ...'. |
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ok := device isValidWindowId:drawableId. |
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ok ifFalse:[ |
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"/ Transcript showCR:'no ...'. |
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self destroyed. |
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] ifTrue:[ |
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Processor |
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addTimedBlock:[self checkWindowStillAlive] |
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for:nil |
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afterMilliseconds:1000 |
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] |
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! ! |
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!ExternalTopView methodsFor:'private accessing'! |
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setWindowID:aWindowID |
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drawableId := aWindowID. |
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realized := shown := true. |
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! ! |
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!ExternalTopView methodsFor:'queries'! |
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added isExternalTopView query.
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isExternalTopView |
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"return true, if this is an external topView - always true here" |
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^ true |
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! ! |
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!ExternalTopView methodsFor:'redefined'! |
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destroyView |
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"never destroyed by ST/X - instead, the view is under |
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control of the host application ..." |
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realized := false. |
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drawableId := nil. |
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! |
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open |
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"redefined to start a watch timeout for closed windows; |
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this is required, since we wont get any closeRequest event for |
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external windows (as all of its events are handled by the alien |
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application)" |
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super open. |
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self checkWindowStillAlive |
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! |
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unmap |
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"redefined as a noop; |
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ExternalTopViews are never unmapped by ST/X - instead, the view is under |
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control of the host application ..." |
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! ! |
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!ExternalTopView methodsFor:'special'! |
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becomeParentOf:anSTXWindow |
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"add myself to the windowGroup of anSTXWindow ... |
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and reparent anSTXWindow to be the (only) child of myself" |
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|wg oldTopView| |
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anSTXWindow createWithAllSubViews. |
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oldTopView := anSTXWindow topView. |
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wg := anSTXWindow windowGroup. |
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wg notNil ifTrue:[ |
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wg addTopView:self. |
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]. |
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oldTopView == anSTXWindow ifTrue:[ |
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oldTopView container:self. |
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]. |
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self open. "/ not really an open; however it starts its event handler |
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wg isNil ifTrue:[ |
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oldTopView windowGroup:self windowGroup. |
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]. |
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anSTXWindow device |
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reparentWindow:anSTXWindow id |
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to:self id. |
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self addSubView:anSTXWindow. |
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anSTXWindow enableEvent:#structureNotify. |
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anSTXWindow realize. |
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anSTXWindow map. |
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wg notNil ifTrue:[ |
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wg removeView:oldTopView. |
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wg addView:oldTopView. |
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]. |
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anSTXWindow origin:0.0 @ 0.0 corner:1.0 @ 1.0. |
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! ! |
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!ExternalTopView class methodsFor:'documentation'! |
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version |
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^ '$Header: /cvs/stx/stx/libview2/ExternalTopView.st,v 1.10 1999-02-17 00:09:13 cg Exp $' |
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! ! |