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MenuPanel subclass:#FontMenu
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instanceVariableNames:'model enabledChannel fontFamily fontFace fontStyle fontSize'
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classVariableNames:''
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poolDictionaries:''
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category:'Interface-UIPainter'
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!
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!FontMenu class methodsFor:'documentation'!
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documentation
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"
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FontMenu used by UIPainter
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[see also:]
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UIPainter
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FontMenuSpec
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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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|top|
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top := StandardSystemView new.
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top extent:250@30.
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self origin:0.0@0.0 corner:1.0@1.0 in:top.
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top open.
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[exEnd]
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"
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! !
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!FontMenu class methodsFor:'menu spec'!
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menu
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^ #(#Menu #(
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(#MenuItem
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#'label:' ''
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#'indication:' false
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)
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(#MenuItem
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#'label:' 'family'
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#'value:' #fontFamily:
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#'submenu:'
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#(#Menu #( #(#MenuItem #'label:' 'helvetica' value:#helvetica )
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#(#MenuItem #'label:' 'courier' value:#courier )
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#(#MenuItem #'label:' 'times' value:#times )
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#(#MenuItem #'label:' 'clean' value:#clean )
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#(#MenuItem #'label:' 'fixed' value:#fixed )
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#(#MenuItem #'label:' 'lucida' value:#lucida )
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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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#'label:' 'face'
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#'value:' #fontFace:
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#'submenu:'
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#(#Menu #( #(#MenuItem #label: 'bold' value:#bold )
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#(#MenuItem #label: 'medium' value:#medium )
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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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#'label:' 'style'
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#'value:' #fontStyle:
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#'submenu:'
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#(#Menu #( #(#MenuItem #label: 'roman' value:#roman )
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#(#MenuItem #label: 'italic' value:#italic )
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#(#MenuItem #label: 'oblique' value:#oblique )
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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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#'label:' 'size'
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#'value:' #fontSize:
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#'submenu:'
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#(#Menu #( #(#MenuItem #label: '6' value:#6 )
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#(#MenuItem #label: '8' value:#8 )
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#(#MenuItem #label: '10' value:#10 )
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#(#MenuItem #label: '12' value:#12 )
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#(#MenuItem #label: '14' value:#14 )
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#(#MenuItem #label: '16' value:#16 )
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#(#MenuItem #label: '18' value:#18 )
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#(#MenuItem #label: 'other ...' value:#size)
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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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#( 1 )
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nil
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) decodeAsLiteralArray
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! !
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!FontMenu 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 selector arg|
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selector := self selection value.
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(item := super accept:anItem) isNil ifTrue:[
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^ self
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].
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(arg := item value) isNil ifTrue:[
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model notNil ifTrue:[
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enabledChannel value ifTrue:[
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arg := self fontDescription
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].
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model value:arg
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].
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^ self
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].
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(arg == #size and:[(arg := self readSize) isNil]) ifTrue:[
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^ self
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].
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(self perform:selector with:arg) ifTrue:[
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model notNil ifTrue:[model value:(self fontDescription)]
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]
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!
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readSize
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"read a size; in case of cancel nil is returned otherwise a number.
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"
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|size string|
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string := EnterBox request:'size: '.
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string size ~~ 0 ifTrue:[
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size := SmallInteger readFrom:string onError:nil.
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(size notNil and:[size >= 6 and:[size <= 48]]) ifTrue:[
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^ size
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]
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].
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^ nil
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! !
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!FontMenu methodsFor:'accessing'!
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fontDescription
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"get font description
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"
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^ FontDescription family:fontFamily face:fontFace style:fontStyle size:fontSize
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!
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fontDescription:aFontDesc
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"set font description
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"
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|desc|
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aFontDesc isNil ifTrue:[
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enabledChannel value:false.
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] ifFalse:[
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self disabledRedrawDo:[
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enabledChannel value:true.
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self fontFamily:(aFontDesc family).
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self fontFace:(aFontDesc face).
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self fontStyle:(aFontDesc style).
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self fontSize:(aFontDesc size).
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]
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]
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!
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fontFace
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"get face, a string
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"
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^ fontFace
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!
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fontFace:aFace
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"set face, a string; update item.
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if the face changed true is returned otherwise nil
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"
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(aFace notNil and:[aFace ~= fontFace]) ifTrue:[
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(self itemAt:#fontFace:) label:(fontFace := aFace).
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^ true
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].
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^ false
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!
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fontFamily
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"get family, a string
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"
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^ fontFamily
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!
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fontFamily:aFamily
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"set family, a string; update item
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if the family changed true is returned otherwise nil
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"
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(aFamily notNil and:[aFamily ~= fontFamily]) ifTrue:[
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(self itemAt:#fontFamily:) label:(fontFamily := aFamily).
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^ true
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].
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^ false
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!
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fontSize
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"get size, a number
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"
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^ fontSize
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!
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fontSize:aSize
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"set size, a number; update item
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if the size changed true is returned otherwise nil
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"
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|label|
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(aSize notNil and:[aSize ~= fontSize]) ifTrue:[
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fontSize := aSize.
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(self itemAt:#fontSize:) label:(aSize printString).
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^ true
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].
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^ false
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!
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fontStyle
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"get style, a string
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"
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^ fontStyle
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!
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fontStyle:aStyle
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"set style, a string; update item
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if the style changed true is returned otherwise nil
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"
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(aStyle notNil and:[aStyle ~= fontStyle]) ifTrue:[
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(self itemAt:#fontStyle:) label:(fontStyle := aStyle).
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^ true
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].
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^ false
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! !
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!FontMenu methodsFor:'accessing channels'!
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model
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"get my model
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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 model
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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 fontDescription:(model value)
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].
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! !
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!FontMenu 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 fontDescription:(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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!FontMenu methodsFor:'initialization'!
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destroy
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"release dependencies
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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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self menu:(self class menu).
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enabledChannel := false asValue.
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self fontDescription:(self font).
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self do:[:anItem|
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anItem hasIndication ifFalse:[
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anItem enabled:enabledChannel
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] ifTrue:[
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anItem indication:enabledChannel
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]
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].
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! !
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!FontMenu class methodsFor:'documentation'!
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version
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^ '$Header: /cvs/stx/stx/libwidg2/FontMenu.st,v 1.1 1997-06-04 11:37:29 ca Exp $'
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! !
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