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"
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COPYRIGHT (c) 1992 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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Object subclass:#EnterFieldGroup
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instanceVariableNames:'fields currentField leaveAction'
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classVariableNames:''
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poolDictionaries:''
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category:'Views-Support'
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!
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EnterFieldGroup comment:'
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COPYRIGHT (c) 1992 by Claus Gittinger
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All Rights Reserved
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$Header: /cvs/stx/stx/libwidg/EnterFieldGroup.st,v 1.6 1994-10-10 03:00:56 claus Exp $
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'!
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!EnterFieldGroup class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 1992 by Claus Gittinger
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All Rights Reserved
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38
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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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$Header: /cvs/stx/stx/libwidg/EnterFieldGroup.st,v 1.6 1994-10-10 03:00:56 claus Exp $
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"
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!
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documentation
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"
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EnterFieldGroup controlls the interaction between EnterFields
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enabling next/prev field when a field is left. Instances of
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this class keep track of which field of the group is the currentField
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(i.e. the one getting keyboard input).
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The block accessable as leaveAction is evaluated when the last
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field of the group is left (by cursor-down or cr). Usually this block
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triggers some action on the fields.
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"
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! !
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!EnterFieldGroup methodsFor:'adding / removing'!
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add:aField
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|thisIndex next|
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fields isNil ifTrue:[
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fields := OrderedCollection new
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].
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fields add:aField.
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thisIndex := fields size.
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aField delegate:self.
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aField disable.
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"set the fields enableAction to disable active field"
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aField enableAction:[
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currentField notNil ifTrue:[
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currentField disable
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].
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currentField := aField
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].
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"set the fields leaveAction to enable next field"
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aField leaveAction:[:key |
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currentField notNil ifTrue:[
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currentField disable
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].
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(key == #Up) ifTrue:[
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(thisIndex == 1) ifTrue:[
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next := fields size
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] ifFalse:[
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next := thisIndex - 1
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]
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].
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(key == #Down) ifTrue:[
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(thisIndex == (fields size)) ifTrue:[
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next := 1
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] ifFalse:[
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next := thisIndex + 1
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]
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].
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(key == #Return) ifTrue:[
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(thisIndex == (fields size)) ifTrue:[
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leaveAction notNil ifTrue:[
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leaveAction value.
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currentField := nil
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] ifFalse:[
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next := 1
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]
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] ifFalse:[
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next := thisIndex + 1
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]
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].
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next notNil ifTrue:[
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(fields at:next) enable.
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currentField := fields at:next
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]
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]
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! !
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!EnterFieldGroup methodsFor:'accessing'!
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leaveAction:aBlock
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leaveAction := aBlock
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! !
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!EnterFieldGroup methodsFor:'controlling'!
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makeActive:aField
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currentField notNil ifTrue:[
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currentField disable
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].
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currentField := aField.
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currentField enable.
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!
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canHandle:aKey
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^ true
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!
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mappedView:aView
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"no interrest in this one ..."
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aView mapped
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!
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configureX:x y:y width:w height:h view:v
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"no interrest in this one ..."
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v configureX:x y:y width:w height:h
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!
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keyPress:key x:x y:y view:aView
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"key-press in a field"
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currentField notNil ifTrue:[
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currentField keyPress:key x:0 y:0
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]
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!
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7
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buttonPress:button x:x y:y view:aView
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self makeActive:aView.
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aView buttonPress:button x:x y:y
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!
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buttonShiftPress:button x:x y:y view:aView
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self makeActive:aView.
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aView buttonShiftPress:button x:x y:y
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!
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buttonMultiPress:button x:x y:y view:aView
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self makeActive:aView.
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aView buttonMultiPress:button x:x y:y
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!
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buttonRelease:button x:x y:y view:aView
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aView buttonRelease:button x:x y:y
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!
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buttonMotion:state x:x y:y view:aView
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aView buttonMotion:state x:x y:y
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! !
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