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"
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COPYRIGHT (c) 1995 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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MenuPanel subclass:#ColorMenu
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instanceVariableNames:'model enabledChannel'
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classVariableNames:'Menu'
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poolDictionaries:''
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category:'Interface-UIPainter'
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!
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!ColorMenu class methodsFor:'documentation'!
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422
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copyright
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"
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COPYRIGHT (c) 1995 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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412
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documentation
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"
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ColorMenu used by UIPainter
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[see also:]
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UIPainter
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ColorMenuSpec
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422
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[author:]
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Claus Atzkern
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412
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"
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!
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examples
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"
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simple example
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[exBegin]
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|tool top channel|
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top := StandardSystemView new.
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top extent:250@30.
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channel := (Color red) asValue.
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tool := self origin:0.0@0.0 corner:1.0@1.0 in:top.
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tool model:channel.
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top open.
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[exEnd]
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"
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! !
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!ColorMenu class methodsFor:'menu spec'!
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menu
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"get the Menu
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"
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|col submenu string|
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Menu isNil ifTrue:[
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Menu := self menuSpec decodeAsLiteralArray.
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string := String new:3.
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Menu itemsDo:[:anItem|
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submenu := anItem submenu.
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submenu notNil ifTrue:[
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submenu itemsDo:[:el|
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col := Parser evaluate:(el value).
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el label:(Text string:string emphasis:(#backgroundColor->col)).
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el value:nil.
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].
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col := Parser evaluate:(anItem value).
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col := Array with:(#backgroundColor->col) with:#bold.
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anItem label:(Text string:string emphasis:col).
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anItem value:nil.
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] ifFalse:[
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anItem value == #selection ifTrue:[
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anItem label:(Text string:string emphasis:(#backgroundColor->DefaultViewBackgroundColor)).
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] ifFalse:[
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anItem enabled:false
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]
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]
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].
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].
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^ Menu
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"
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Menu := nil
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"
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!
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menuSpec
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"specification used to build the Menu
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"
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^ #(#Menu #(
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(#MenuItem
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#value: #selection
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)
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(#MenuItem
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#label: '='
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)
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(#MenuItem
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#value: 'Color gray'
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#submenu:
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#(#Menu #( #(#MenuItem #value: 'Color white' )
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#(#MenuItem #value: 'Color gray:90' )
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#(#MenuItem #value: 'Color gray:80' )
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#(#MenuItem #value: 'Color gray:70' )
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#(#MenuItem #value: 'Color gray:60' )
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#(#MenuItem #value: 'Color gray:50' )
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#(#MenuItem #value: 'Color gray:40' )
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#(#MenuItem #value: 'Color gray:30' )
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#(#MenuItem #value: 'Color gray:20' )
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#(#MenuItem #value: 'Color gray:10' )
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#(#MenuItem #value: 'Color black' )
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)
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nil
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nil
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)
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)
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(#MenuItem
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#value: 'Color blue'
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#submenu:
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#(#Menu #(
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#(#MenuItem #value: 'Color blue lightened lightened' )
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#(#MenuItem #value: 'Color blue lightened' )
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#(#MenuItem #value: 'Color blue' )
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#(#MenuItem #value: 'Color blue darkened' )
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)
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nil
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nil
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)
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)
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(#MenuItem
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#value: 'Color red'
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#submenu:
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#(#Menu #(
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#(#MenuItem #value: 'Color red lightened lightened' )
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#(#MenuItem #value: 'Color red lightened' )
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#(#MenuItem #value: 'Color red' )
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#(#MenuItem #value: 'Color red darkened' )
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)
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nil
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nil
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)
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)
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(#MenuItem
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#value: 'Color green'
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#submenu:
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#(#Menu #(
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#(#MenuItem #value: 'Color green lightened lightened' )
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#(#MenuItem #value: 'Color green lightened' )
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#(#MenuItem #value: 'Color green' )
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#(#MenuItem #value: 'Color green darkened' )
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#(#MenuItem #value: 'Color green darkened darkened' )
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#(#MenuItem #value: 'Color red:100 green:100 blue:0' )
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#(#MenuItem #value: '(Color red:100 green:100 blue:0) darkened' )
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#(#MenuItem #value: '(Color red:100 green:100 blue:0) darkened darkened' )
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#(#MenuItem #value: 'Color red:0 green:100 blue:100' )
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#(#MenuItem #value: '(Color red:0 green:100 blue:100) darkened' )
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#(#MenuItem #value: '(Color red:0 green:100 blue:100) darkened darkened' )
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)
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nil
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nil
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)
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)
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)
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nil
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nil
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)
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! !
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!ColorMenu methodsFor:'accept'!
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accept:anItem
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"accept current selected item
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"
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|item holder color|
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(item := super accept:anItem) notNil ifTrue:[
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(holder := self colorHolder) == item ifTrue:[
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enabledChannel value ifTrue:[color := self color]
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] ifFalse:[
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holder label:(item label).
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color := self color.
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].
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model notNil ifTrue:[model value:color]
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]
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! !
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!ColorMenu methodsFor:'accessing'!
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color
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"get current color
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"
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^ (self colorHolder label emphasis at:1) value
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!
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color:aColor
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"set current color
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"
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|holder label|
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aColor isNil ifTrue:[
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enabledChannel value:false
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] ifFalse:[
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self disabledRedrawDo:[
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holder := self colorHolder.
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label := Text string:(holder label string) emphasis:(#backgroundColor->aColor).
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enabledChannel value:true.
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holder label:label.
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]
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]
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! !
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!ColorMenu methodsFor:'accessing channels'!
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model
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"get my color channel
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"
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^ model
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!
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model:aValueHolder
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"set my color channel
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"
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model notNil ifTrue:[
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model removeDependent:self.
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].
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model := aValueHolder.
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model notNil ifTrue:[
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model addDependent:self.
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self color:(model value).
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].
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! !
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!ColorMenu methodsFor:'accessing look'!
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showSeparatingLines
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"always returns true
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"
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^ true
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! !
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!ColorMenu methodsFor:'change & update'!
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update:something with:aParameter from:changedObject
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"one of my models changed its value
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"
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changedObject == model ifTrue:[
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^ self color:(model value)
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].
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super update:something with:aParameter from:changedObject
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! !
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!ColorMenu methodsFor:'initialization'!
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destroy
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"release color channel dependency
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"
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self model:nil.
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super destroy.
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!
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initialize
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"setup menu
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"
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super initialize.
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self verticalLayout:false.
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self fitFirstPanel:false.
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enabledChannel := false asValue.
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self setupMenu.
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!
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setupMenu
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"setup menu
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"
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|menu|
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menu := self class menu.
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self menu:menu.
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self do:[:anItem|
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(anItem submenu) notNil ifTrue:[
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anItem enabled:enabledChannel.
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] ifFalse:[
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anItem value == #selection ifTrue:[
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anItem indication:enabledChannel.
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] ifFalse:[
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anItem enabled:false
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]
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]
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].
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! !
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!ColorMenu methodsFor:'private'!
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colorHolder
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"returns the item which keeps the selected color in its label
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"
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^ self itemAt:#selection
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! !
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!ColorMenu class methodsFor:'documentation'!
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338 |
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version
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340 |
^ '$Header: /cvs/stx/stx/libwidg2/ColorMenu.st,v 1.3 1997-07-28 10:18:31 cg Exp $'
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341 |
! !
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