FillingWrapper.st
author Claus Gittinger <cg@exept.de>
Thu, 09 May 1996 01:11:08 +0200
changeset 248 266a7ec53d9f
parent 246 9f80dbcbcd34
child 252 80f1ba561aab
permissions -rw-r--r--
more examples & comments

"
 COPYRIGHT (c) 1996 by Claus Gittinger
              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.
"



Wrapper subclass:#FillingWrapper
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	category:'Graphics-Display Objects'
!

!FillingWrapper class methodsFor:'documentation'!

copyright
"
 COPYRIGHT (c) 1996 by Claus Gittinger
              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
"
    a wrapper for a geometric object, which is to be drawn filled.
    This allows any geometric thingy to be used as a filled component in a view.

    [see also:]
        StrokingWrapper Geometric GraphicsContext

    [author:]
        Claus Gittinger
"


!

examples
"
                                                                        [exBegin]
        |v e component|

        v := View extent:250@250.

        e := EllipticalArc boundingBox:(10@10 corner:90@90)
                            startAngle:0 
                            sweepAngle:270.
        v addComponent:(StrokingWrapper on:e).

        e := EllipticalArc boundingBox:(110@110 corner:190@190)
                            startAngle:0 
                            sweepAngle:270.
        v addComponent:(FillingWrapper on:e).
        v open
                                                                        [exEnd]


                                                                        [exBegin]
        |v e component|

        v := View new.
        v extent:250@250.

        e := Rectangle origin:10@10 corner:90@90.
        component := FillingWrapper on:e.
        component foregroundColor:Color red.

        v addComponent:component.

        e := EllipticalArc boundingBox:(10@10 corner:90@90)
                         startAngle:0 sweepAngle:270.
        component := StrokingWrapper on:e.
        component lineWidth:5.

        v addComponent:component.

        v addComponent:(Button label:'hello').

        v open
                                                                        [exEnd]
"

! !

!FillingWrapper methodsFor:'accessing - bounds'!

preferredBounds
    "return the components bounds as preferredBounds"

    ^ component bounds

    "Created: 9.5.1996 / 00:10:03 / cg"
! !

!FillingWrapper methodsFor:'displaying'!

displayOn:aGC
    "display myself - here, display the geometric object asFilled"

    |prevFg|

    prevFg := aGC paint.

    aGC paint:fgColor.

    component displayFilledOn:aGC.

    aGC paint:prevFg.

    "Created: 8.5.1996 / 23:54:06 / cg"
    "Modified: 9.5.1996 / 00:11:27 / cg"
! !

!FillingWrapper class methodsFor:'documentation'!

version
    ^ '$Header: /cvs/stx/stx/libview2/FillingWrapper.st,v 1.3 1996-05-08 23:11:05 cg Exp $'
! !