"
 COPYRIGHT (c) 1995 by eXept Software AG
              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.
"




ApplicationModel subclass:#UISpecificationTool
	instanceVariableNames:'modifiedHolder aspects specClass specEdited specChannel'
	classVariableNames:''
	poolDictionaries:''
	category:'Interface-UIPainter'
!

!UISpecificationTool class methodsFor:'documentation'!

copyright
"
 COPYRIGHT (c) 1995 by eXept Software AG
              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
"
    used by the UIPainter to manipulate the specifications of the selected component

    [author:]
        Claus Atzkern

    [see also:]
        UIPainter
        UILayoutTool
        UIHelpTool
"
! !

!UISpecificationTool class methodsFor:'interface specs'!

windowSpec
    "this window spec was automatically generated by the ST/X UIPainter"

    "do not manually edit this - the painter/builder may not be able to
     handle the specification if its corrupted."

    "
     UIPainter new openOnClass:UISpecificationTool andSelector:#windowSpec
     UISpecificationTool new openInterface:#windowSpec
    "
    "UISpecificationTool open"

    <resource: #canvas>

    ^
     
       #(#FullSpec
          #'window:' 
           #(#WindowSpec
              #'name:' 'uIPainterView'
              #'layout:' #(#LayoutFrame 0 0.0 0 0.0 0 1.0 0 1.0)
              #'label:' 'unnamed canvas'
              #'bounds:' #(#Rectangle 0 0 300 300)
          )
          #'component:' 
           #(#SpecCollection
              #'collection:' 
               #(
                 #(#ViewSpec
                    #'name:' 'Frame'
                    #'layout:' #(#LayoutFrame 0 0.0 0 0.0 0 1.0 0 1.0)
                )
              )
          )
      )
! !

!UISpecificationTool methodsFor:'accessing'!

modifiedHolder:aValueHolder
    "set the value holder set to true in case of modifying attributes
    "
    modifiedHolder notNil ifTrue:[
        modifiedHolder removeDependent:self. 
    ].

    (modifiedHolder := aValueHolder) notNil ifTrue:[
        modifiedHolder addDependent:self.
    ].

!

update
    "reload specification
    "
    specChannel notNil ifTrue:[
        specChannel value:specEdited.
    ]


! !

!UISpecificationTool methodsFor:'bindings'!

aspectFor:aKey
    "returns aspect for a key or nil
    "
    aspects notNil ifTrue:[
        ^ aspects at:aKey ifAbsent:nil
    ].
    ^ super aspectFor:aKey

!

specEdited
    "gets current edit specification
    "
    ^ specEdited


!

specEdited:aSpec
    "sets current edit specification
    "
    aSpec isNil ifTrue:[
        specChannel := nil.
        specEdited  := nil.
        aspects     := nil.
    ] ifFalse:[
        specEdited class == aSpec class ifTrue:[
            specEdited := aSpec.
          ^ specChannel value:specEdited.
        ].
        specEdited  := aSpec.
        aspects     := IdentityDictionary new.
        specChannel := specEdited asValue.
        specEdited class addBindingsTo:aspects for:specEdited channel:specChannel.
        aspects do:[:el| el addDependent:self ].
    ].

    specClass notNil ifTrue:[
        (builder componentAt:#Frame) destroySubViews.
        specClass := nil.
    ].
! !

!UISpecificationTool methodsFor:'change & update'!

update:something with:someArgument from:someone
    "any attribute changed its state in the current specification
    "
    someone ~~ modifiedHolder ifTrue:[
        modifiedHolder value ~~ true ifTrue:[
            modifiedHolder value:true
        ]
    ]


! !

!UISpecificationTool methodsFor:'selection'!

selection:something
    |slices idx spec frame|

    specEdited notNil ifTrue:[
        slices := specEdited class slices.
        idx:= slices findFirst:[:aSlice| aSlice first = something ].

        idx ~~ 0 ifTrue:[
            spec := specEdited class perform:((slices at:idx) last).
        ].
    ].

    spec ~= specClass ifTrue:[
        frame := builder componentAt:#Frame.
        frame destroySubViews.

        spec notNil ifTrue:[
            builder buildFromSpec:spec in:frame.
            frame allViewBackground:(frame viewBackground).
            frame realizeAllSubViews.
        ]
    ].
    specClass := spec.
! !

!UISpecificationTool class methodsFor:'documentation'!

version
    ^ '$Header$'
! !