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"
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COPYRIGHT (c) 1996 by Claus Gittinger
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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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GeometricWrapper subclass:#FillingWrapper
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instanceVariableNames:''
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classVariableNames:''
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poolDictionaries:''
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category:'Graphics-Display Objects'
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!
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!FillingWrapper class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 1996 by Claus Gittinger
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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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a wrapper for a geometric object, which is to be drawn filled.
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This allows any geometric thingy to be used as a filled component in a view.
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(background info: geometrics are mathematical objects - they do not
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keep any color or lineStyle attributes. Wrappers add this information
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and can also be used as components of a view)
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[see also:]
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StrokingWrapper Geometric GraphicsContext
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[author:]
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Claus Gittinger
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"
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!
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examples
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"
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wrap an ellipticArc and display it
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(notice, that no automatic redraw is performed):
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[exBegin]
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|v e component|
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v := (View extent:250@250) openAndWait.
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e := EllipticalArc boundingBox:(10@10 corner:90@90)
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startAngle:0
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sweepAngle:270.
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component := FillingWrapper on:e.
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component displayOn:v.
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[exEnd]
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wrap an spline and display it
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(notice, that no automatic redraw is performed):
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[exBegin]
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|v s component|
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v := (View extent:250@250) openAndWait.
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s := Spline controlPoints:
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(Array with:(20@20)
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with:(80@80)
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with:(20@80)
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with:(20@20)).
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component := FillingWrapper on:s.
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component foregroundColor:(Color green darkened).
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component displayOn:v.
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[exEnd]
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wrap ellipticArcs
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and add them as components to a View
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(notice, that doing so makes the redraw automatic):
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[exBegin]
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|v e component|
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v := View extent:250@250.
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e := EllipticalArc boundingBox:(10@10 corner:90@90)
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startAngle:0
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sweepAngle:270.
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v addComponent:(StrokingWrapper on:e).
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e := EllipticalArc boundingBox:(110@110 corner:190@190)
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startAngle:0
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sweepAngle:270.
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v addComponent:(FillingWrapper on:e).
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v open
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[exEnd]
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wrap a rectangle and an ellipticArc,
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and add them as components to a View
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(notice, that doing so makes the redraw automatic):
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[exBegin]
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|v e component|
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v := View new.
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v extent:250@250.
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e := Rectangle origin:10@10 corner:90@90.
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component := FillingWrapper on:e.
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component foregroundColor:Color red.
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v addComponent:component.
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e := EllipticalArc boundingBox:(10@10 corner:90@90)
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startAngle:0 sweepAngle:270.
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component := StrokingWrapper on:e.
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component lineWidth:5.
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v addComponent:component.
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v addComponent:(Button label:'hello').
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v open
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[exEnd]
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"
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! !
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!FillingWrapper methodsFor:'displaying'!
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displayOn:aGC
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"display myself - here, display the geometric object asFilled"
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|prevFg|
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prevFg := aGC paint.
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aGC paint:fgColor.
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component displayFilledOn:aGC.
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aGC paint:prevFg.
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"Created: 8.5.1996 / 23:54:06 / cg"
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"Modified: 9.5.1996 / 00:11:27 / cg"
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! !
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!FillingWrapper class methodsFor:'documentation'!
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version
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^ '$Header: /cvs/stx/stx/libview2/FillingWrapper.st,v 1.5 1996-05-09 08:43:59 cg Exp $'
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! !
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