TransparentBox.st
author Claus Gittinger <cg@exept.de>
Tue, 18 Mar 2014 16:14:17 +0100
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child 3621 63e942161951
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"
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 COPYRIGHT (c) 2004 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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"{ Package: 'stx:libview2' }"
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View subclass:#TransparentBox
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	instanceVariableNames:'shapeForm'
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	classVariableNames:''
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	poolDictionaries:''
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	category:'Views-Basic'
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!
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!TransparentBox class methodsFor:'documentation'!
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copyright
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"
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 COPYRIGHT (c) 2004 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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examples
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    | tv b1 b2 |
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    b1 := Button label:'close'.
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    b1 action:[ tv close ].
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    b1 origin:10@10.
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    b2 := Button label:'hello'.
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    b2 origin:100@100.
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    tv := self new.
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    tv extent:200@200.
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    tv addSubView:b1.
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    tv addSubView:b2.
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    tv open
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! !
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!TransparentBox methodsFor:'events'!
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sizeChanged:how
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    shapeForm notNil ifTrue:[
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        self computeShape.
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    ].
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    ^ super sizeChanged: how.
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! !
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!TransparentBox methodsFor:'initialization'!
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realize
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    self computeShape.
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    super realize.
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! !
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!TransparentBox methodsFor:'queries'!
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isTransparentBox
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    ^true
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!
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specClass
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    ^ TransparentBoxSpec
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!
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windowStyle
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    ^ #undecorated
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! !
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!TransparentBox methodsFor:'shape computation'!
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addSubView:aView
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    super addSubView:aView.
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    shapeForm notNil ifTrue:[
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        self computeShape
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    ].
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!
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computeShape
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    | subViews w h |
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    self graphicsDevice supportsArbitraryShapedViews ifFalse:[^self].
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    w := self extent x.
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    h := self extent y.
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    shapeForm := Form width:w height:h.
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    shapeForm fill:(Color colorId:0).
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    shapeForm foreground:(Color colorId:1).
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    subViews := self subViews.
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    subViews isEmptyOrNil ifTrue:[
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       self fillFormWithBorderShape:shapeForm.
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    ] ifFalse:[
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        subViews do:[:aSubView|
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            aSubView fillFormWithBorderShape:shapeForm.
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        ]
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    ].
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    "/ self viewShape:shapeForm.
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    self borderShape:shapeForm.
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! !
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!TransparentBox class methodsFor:'documentation'!
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version
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    ^ '$Header: /cvs/stx/stx/libview2/TransparentBox.st,v 1.5 2014-02-18 17:13:02 stefan Exp $'
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! !
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