ApplicationModel subclass:#UIHelpTool

	instanceVariableNames:'dictionary list model'

	classVariableNames:''

	poolDictionaries:''

	category:'Interface-UIPainter'

!

!UIHelpTool class methodsFor:'documentation'!

documentation

"

    used by the UIPainter to add help text to any component which will be shown

    during runing an application with enabled activeHelp mode.

"

! !

!UIHelpTool 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:ActiveHelpTool andSelector:#windowSpec

     ActiveHelpTool new openInterface:#windowSpec

    "

    "ActiveHelpTool 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 0 286 272)

          )

          #'component:' 

           #(#SpecCollection

              #'collection:' 

               #(

                 #(#TextEditorSpec

                    #'name:' 'textView'

                    #'layout:' #(#LayoutFrame 46 0 25 0.0 0 1.0 0 1.0)

                    #'model:' #textChannel

                    #'hasHorizontalScrollBar:' true

                    #'hasVerticalScrollBar:' true

                    #'miniScrollerHorizontal:' true

                    #'miniScrollerVertical:' true

                )

                 #(#LabelSpec

                    #'name:' 'keyLabel'

                    #'layout:' #(#LayoutFrame 0 0.0 1 0.0 41 0 21 0)

                    #'label:' 'Key:'

                    #'adjust:' #left

                    #'resizeForLabel:' false

                )

                 #(#ComboBoxSpec

                    #'name:' 'comboBox'

                    #'layout:' #(#LayoutFrame 46 0 1 0 0 1.0 21 0)

                    #'tabable:' true

                    #'comboList:' #listChannel

                )

                 #(#LabelSpec

                    #'name:' 'textLabel'

                    #'layout:' #(#LayoutFrame 0 0.0 25 0.0 41 0 45 0)

                    #'label:' 'Text:'

                    #'adjust:' #left

                    #'resizeForLabel:' false

                )

              )

          )

      )

! !

!UIHelpTool methodsFor:'accessing'!

key

    "get the key from the edit field as symbol or nil

    "

    |key|

    key := model value.

    (     key size ~~ 0

     and:[(key indexOfSeparatorStartingAt:1) == 0

      or:[(key := key withoutSeparators) notEmpty]]

    ) ifTrue:[

        ^ key asSymbol

    ].

  ^ nil

!

model:aKeyHolder

    "set the model on the edit field

    "

    model notNil ifTrue:[

        model removeDependent:self

    ].

    (model := aKeyHolder) notNil ifTrue:[

        model addDependent:self

    ].

    (builder componentAt:#comboBox) model:model.

! !

!UIHelpTool methodsFor:'actions'!

accept

    "accept the text

    "

    |key txt|

    key := self key.

    txt := self textChannel.

    key notNil ifTrue:[

        txt dependentsDo:[:edt| edt accept].

        (dictionary at:key ifAbsent:nil) isNil ifTrue:[

            list add:key.

            self listChannel value:list

        ].

        dictionary at:key put:(txt value)

    ] ifFalse:[

        key := nil.

        txt value:nil.

    ].

    model notNil ifTrue:[

        model value:key

    ]

! !

!UIHelpTool methodsFor:'aspects'!

listChannel

    "automatically generated by UIPainter ..."

    |holder|

    (holder := builder bindingAt:#listChannel) isNil ifTrue:[

        builder aspectAt:#listChannel put:(holder :=  ValueHolder new).

    ].

    ^ holder

!

textChannel

    "automatically generated by UIPainter ..."

    |holder|

    (holder := builder bindingAt:#textChannel) isNil ifTrue:[

        builder aspectAt:#textChannel put:(holder :=  ValueHolder new).

    ].

    ^ holder

! !

!UIHelpTool methodsFor:'change & update'!

update:something with:aParameter from:someObject

    "model might change

    "

    |text key|

    (key := self key) notNil ifTrue:[

        (text := dictionary at:key ifAbsent:nil) notNil ifTrue:[

            self textChannel value:text

        ]

    ]

! !

!UIHelpTool methodsFor:'initialization'!

initialize

    "setup instance attributes

    "

    super initialize.

    dictionary  := IdentityDictionary new.

    list        := OrderedCollection new.

! !

!UIHelpTool class methodsFor:'documentation'!

version

    ^ '$Header$'

! !