"{ Package: 'stx:libwidg2' }"

ApplicationModel subclass:#MultipleItemSelectionWidget

	instanceVariableNames:'possibleItemsLabelHolder possibleItemListSelection

		listOfPossibleItems selectedItemListSelection

		removeButtonLabelHolder addButtonLabelHolder

		selectedItemsLabelHolder listOfSelectedItems

		canAddItemToSelection canRemoveItemFromSelection

		canAddAllItemsToSelection canRemoveAllItemsFromSelection

		enableChannel accepted'

	classVariableNames:''

	poolDictionaries:''

	category:'Views-Lists'

!

!MultipleItemSelectionWidget class methodsFor:'documentation'!

documentation

"

    Replacement for a multiSelectionInList widget;

    allows construction of a list by adding/removing items.

    For use in a UI-spec, add a subCanvas, and bind the exported aspects to

    your applications aspects.

    [author:]

	 (cg@smc1)

    [see also:]

    [instance variables:]

    [class variables:]

"

!

examples

"

								[exBegin]

	|box|

	box := MultipleItemSelectionWidget new.

	box listOfPossibleItems value:#('one' 'two' 'three' 'four' 'five').  

	box listOfSelectedItems value:#().  

	box open.

	box listOfSelectedItems inspect

								[exEnd]

								[exBegin]

	|box|

	box := MultipleItemSelectionWidget new.

	box listOfPossibleItems value:#('one' 'two' 'three' 'four' 'five') asSortedCollection.  

	box listOfSelectedItems value:#() asSortedCollection.  

	box open.

	box listOfSelectedItems inspect

								[exEnd]

"

! !

!MultipleItemSelectionWidget class methodsFor:'interface specs'!

dialogSpec

    "This resource specification was automatically generated

     by the UIPainter of ST/X."

    "Do not manually edit this!! If it is corrupted,

     the UIPainter may not be able to read the specification."

    "

     UIPainter new openOnClass:MultipleItemSelectionWidget andSelector:#dialogSpec

     MultipleItemSelectionWidget new openInterface:#dialogSpec

    "

    <resource: #canvas>

    ^ 

     #(#FullSpec

        #name: #dialogSpec

        #window: 

       #(#WindowSpec

          #label: 'dialogSpec'

          #name: 'dialogSpec'

          #min: #(#Point 10 10)

          #max: #(#Point 1280 1024)

          #bounds: #(#Rectangle 16 46 316 346)

        )

        #component: 

       #(#SpecCollection

          #collection: #(

           #(#UISubSpecification

              #name: 'SubSpecification1'

              #layout: #(#LayoutFrame 0 0.0 0 0.0 0 1.0 -30 1.0)

              #minorKey: #windowSpec

            )

           #(#HorizontalPanelViewSpec

              #name: 'HorizontalPanel1'

              #layout: #(#LayoutFrame 0 0 -30 1 0 1 0 1)

              #horizontalLayout: #center

              #verticalLayout: #center

              #horizontalSpace: 3

              #verticalSpace: 3

              #reverseOrderIfOKAtLeft: true

              #component: 

             #(#SpecCollection

                #collection: #(

                 #(#ActionButtonSpec

                    #label: 'Cancel'

                    #name: 'CancelButton'

                    #translateLabel: true

                    #model: #doCancel

                    #extent: #(#Point 125 22)

                  )

                 #(#ActionButtonSpec

                    #label: 'OK'

                    #name: 'OkButton'

                    #translateLabel: true

                    #model: #doAccept

                    #extent: #(#Point 125 22)

                  )

                 )

              )

            )

           )

        )

      )

!

windowSpec

    "This resource specification was automatically generated

     by the UIPainter of ST/X."

    "Do not manually edit this!! If it is corrupted,

     the UIPainter may not be able to read the specification."

    "

     UIPainter new openOnClass:MultipleItemSelectionWidget andSelector:#windowSpec

     MultipleItemSelectionWidget new openInterface:#windowSpec

     MultipleItemSelectionWidget open

    "

    <resource: #canvas>

    ^ 

     #(#FullSpec

        #name: #windowSpec

        #window: 

       #(#WindowSpec

          #label: 'NewApplication'

          #name: 'NewApplication'

          #min: #(#Point 10 10)

          #max: #(#Point 1280 1024)

          #bounds: #(#Rectangle 16 46 316 346)

        )

        #component: 

       #(#SpecCollection

          #collection: #(

           #(#LabelSpec

              #label: 'Selected'

              #name: 'SelectedLabel'

              #layout: #(#LayoutFrame 0 0.5 0 0 0 1 25 0)

              #translateLabel: true

              #labelChannel: #selectedItemsLabelHolder

            )

           #(#SequenceViewSpec

              #name: 'SelectedList'

              #layout: #(#LayoutFrame 20 0.5 25 0 0 1 0 1)

              #enableChannel: #enableChannel

              #tabable: true

              #model: #selectedItemListSelection

              #hasHorizontalScrollBar: true

              #hasVerticalScrollBar: true

              #miniScrollerHorizontal: true

              #miniScrollerVertical: true

              #isMultiSelect: true

              #doubleClickSelector: #removeItemsFromSelection

              #valueChangeSelector: #showInfoForItem:

              #useIndex: false

              #sequenceList: #listOfSelectedItems

            )

           #(#LabelSpec

              #label: 'Not Selected'

              #name: 'NotSelectedLabel'

              #layout: #(#LayoutFrame 0 0 0 0 0 0.5 25 0)

              #translateLabel: true

              #labelChannel: #possibleItemsLabelHolder

            )

           #(#SequenceViewSpec

              #name: 'NotSelectedList'

              #layout: #(#LayoutFrame 0 0 25 0 -20 0.5 0 1)

              #enableChannel: #enableChannel

              #tabable: true

              #model: #possibleItemListSelection

              #hasHorizontalScrollBar: true

              #hasVerticalScrollBar: true

              #miniScrollerHorizontal: true

              #miniScrollerVertical: true

              #isMultiSelect: true

              #doubleClickSelector: #addItemsToSelection

              #valueChangeSelector: #showInfoForItem:

              #useIndex: false

              #sequenceList: #listOfPossibleItems

            )

           #(#VerticalPanelViewSpec

              #name: 'VerticalPanel1'

              #layout: #(#LayoutFrame -20 0.5 25 0 20 0.5 5 0.5)

              #horizontalLayout: #fitSpace

              #verticalLayout: #center

              #horizontalSpace: 3

              #verticalSpace: 3

              #component: 

             #(#SpecCollection

                #collection: #(

                 #(#ActionButtonSpec

                    #label: '<<<'

                    #name: 'AddButton'

                    #translateLabel: true

                    #labelChannel: #addButtonLabelHolder

                    #resizeForLabel: false

                    #tabable: true

                    #model: #addItemsToSelection

                    #enableChannel: #canAddItemToSelection

                    #actionValue: ''

                    #useDefaultExtent: true

                  )

                 #(#ActionButtonSpec

                    #label: '>>>'

                    #name: 'RemoveButton'

                    #translateLabel: true

                    #labelChannel: #removeButtonLabelHolder

                    #resizeForLabel: false

                    #tabable: true

                    #model: #removeItemsFromSelection

                    #enableChannel: #canRemoveItemFromSelection

                    #useDefaultExtent: true

                  )

                 )

              )

            )

           #(#VerticalPanelViewSpec

              #name: 'VerticalPanel2'

              #layout: #(#LayoutFrame -20 0.5 5 0.5 20 0.5 -10 1)

              #horizontalLayout: #fitSpace

              #verticalLayout: #center

              #horizontalSpace: 3

              #verticalSpace: 3

              #component: 

             #(#SpecCollection

                #collection: #(

                 #(#ActionButtonSpec

                    #label: 'All'

                    #name: 'AddAllButton'

                    #translateLabel: true

                    #labelChannel: #addButtonLabelHolder

                    #resizeForLabel: false

                    #tabable: true

                    #model: #addAllItemsToSelection

                    #enableChannel: #canAddAllItemsToSelection

                    #useDefaultExtent: true

                  )

                 #(#ActionButtonSpec

                    #label: 'None'

                    #name: 'RemoveAllButton'

                    #translateLabel: true

                    #labelChannel: #removeButtonLabelHolder

                    #resizeForLabel: false

                    #tabable: true

                    #model: #removeAllItemsFromSelection

                    #enableChannel: #canRemoveAllItemsFromSelection

                    #actionValue: ''

                    #useDefaultExtent: true

                  )

                 )

              )

            )

           )

        )

      )

! !

!MultipleItemSelectionWidget class methodsFor:'plugIn spec'!

aspectSelectors

    "This resource specification was automatically generated

     by the UIPainter of ST/X."

    "Do not manually edit this. If it is corrupted,

     the UIPainter may not be able to read the specification."

    "Return a description of exported aspects;

     these can be connected to aspects of an embedding application

     (if this app is embedded in a subCanvas)."

    ^ #(

        #addButtonLabelHolder

        #enableChannel

        #listOfPossibleItems

        #listOfSelectedItems

        #possibleItemsLabelHolder

        #removeButtonLabelHolder

        #selectedItemsLabelHolder

      ).

! !

!MultipleItemSelectionWidget methodsFor:'actions'!

accept

    "only invoked if opened as modal box..."

    accepted := true.

    self closeRequest.

!

addAllItemsToSelection

    "add all items from unselected to the selected list"

    |newSel|

    newSel := self listOfSelectedItems value asOrderedCollection

	      , self listOfPossibleItems value asOrderedCollection.

    self listOfSelectedItems value:newSel asSortedCollection.

    self listOfPossibleItems value:(#() asSortedCollection).

!

addItemsToSelection

    "add selected items from left list to the right list"

    |sel t|

    sel := self possibleItemListSelection value.

    sel size > 0 ifTrue:[

	t := self listOfSelectedItems value copy.

	t addAll:sel.

	self listOfSelectedItems value:t.

	t := self listOfPossibleItems value copy.

	t removeAll:sel.

	self listOfPossibleItems value:t.

	self possibleItemListSelection value:#()

    ]

!

cancel

    "only invoked if opened as modal box..."

    accepted := false.

    self closeRequest.

!

removeAllItemsFromSelection

    "remove all items from selected to the unselected list"

    |newRem|

    newRem := self listOfSelectedItems value asOrderedCollection

	      , self listOfPossibleItems value asOrderedCollection.

    self listOfPossibleItems value:newRem asSortedCollection.

    self listOfSelectedItems value:(#() asSortedCollection).

!

removeItemsFromSelection

    "remove selected items from right list to the left list"

    |sel t|

    sel := self selectedItemListSelection value.

    sel size > 0 ifTrue:[

	t := self listOfPossibleItems value copy.

	t addAll:sel.

	self listOfPossibleItems value:t.

	t := self listOfSelectedItems value copy.

	t removeAll:sel.

	self listOfSelectedItems value:t.

	self selectedItemListSelection value:#()

    ]

!

showInfoForItem:anArgument

! !

!MultipleItemSelectionWidget methodsFor:'aspects'!

accepted

    ^ accepted == true

!

canAddAllItemsToSelection

    canAddAllItemsToSelection isNil ifTrue:[

       canAddAllItemsToSelection := BlockValue with:[:m | m value size > 0]

				    argument:self listOfPossibleItems 

    ].

    ^ canAddAllItemsToSelection.

!

canAddItemToSelection

    "automatically generated by UIPainter ..."

    "*** the code below creates a default model when invoked."

    "*** (which may not be the one you wanted)"

    "*** Please change as required and accept it in the browser."

    canAddItemToSelection isNil ifTrue:[

       canAddItemToSelection := BlockValue with:[:m | m value size > 0]

				    argument:self possibleItemListSelection 

    ].

    ^ canAddItemToSelection.

!

canRemoveAllItemsFromSelection

    canRemoveAllItemsFromSelection isNil ifTrue:[

       canRemoveAllItemsFromSelection := BlockValue with:[:m | m value size > 0]

				    argument:self listOfSelectedItems 

    ].

    ^ canRemoveAllItemsFromSelection.

!

canRemoveItemFromSelection

    "automatically generated by UIPainter ..."

    "*** the code below creates a default model when invoked."

    "*** (which may not be the one you wanted)"

    "*** Please change as required and accept it in the browser."

    canRemoveItemFromSelection isNil ifTrue:[

       canRemoveItemFromSelection := BlockValue with:[:m | m value size > 0]

				    argument:self selectedItemListSelection 

    ].

    ^ canRemoveItemFromSelection.

!

enableChannel

    enableChannel isNil ifTrue:[

       enableChannel := true asValue 

    ].

    ^ enableChannel.

!

enableChannel:aChannel

    enableChannel := aChannel

!

listOfPossibleItems

    "automatically generated by UIPainter ..."

    "*** the code below creates a default model when invoked."

    "*** (which may not be the one you wanted)"

    "*** Please change as required and accept it in the browser."

    listOfPossibleItems isNil ifTrue:[

       listOfPossibleItems := #() asValue.

    ].

    ^ listOfPossibleItems.

!

listOfPossibleItems:aValueHolder

   listOfPossibleItems := aValueHolder.

!

listOfSelectedItems

    "automatically generated by UIPainter ..."

    "*** the code below creates a default model when invoked."