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"
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COPYRIGHT (c) 1997 by Claus Gittinger / 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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NoteBookView subclass:#UIGalleryView
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instanceVariableNames:'majorKey minorKeys minorKeysHolder'
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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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View subclass:#Canvas
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instanceVariableNames:'dragMode clientSpecHolder inputView selection specification
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lastClickPoint menuSelector raiseMenuSelector uiBuilder'
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classVariableNames:''
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poolDictionaries:''
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privateIn:UIGalleryView
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!
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DropObject subclass:#DropSpec
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instanceVariableNames:''
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classVariableNames:''
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poolDictionaries:''
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privateIn:UIGalleryView::Canvas
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!
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!UIGalleryView class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 1997 by Claus Gittinger / 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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46 |
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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documentation
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"
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implements a selection panel, keeping widgets which could be placed
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into other components by drag & drop or copy @ paste. The objects
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which are draged/droped must be kind of UISpecification's.
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The UISelectionPanel used by the UIPainter is implemented in this way.
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[author:]
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Claus Gittinger
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Claus Atzkern
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[see also:]
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UIPainter
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UISelectionPanel
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"
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!
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examples
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"
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opens a gallery
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[exBegin]
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|top sel|
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top := StandardSystemView new label:'gallery'; extent:500@300.
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sel := UIGalleryView origin:0.0 @ 0.0 corner:1.0 @ 1.0 in:top.
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sel labels:#( 'Buttons'
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'Panels'
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'Text'
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).
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sel minorKeys:#( #standardButtonToggle
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#standardPanels
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#standardText
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).
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sel majorKey:UISelectionPanel.
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top open.
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[exEnd]
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"
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! !
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!UIGalleryView methodsFor:'accessing'!
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builder
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"get the builder used to setup a window from a specification (or nil in case
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of using a new builder)
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"
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^ canvas builder
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!
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builder:aBuilderOrNil
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"set the builder used to setup a window from a specification (or nil in case
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of using a new builder)
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"
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canvas builder:aBuilderOrNil
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!
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canvas:aCanvas
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^ self
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!
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labels:listOfLabels minorKeys:listOfMinorKeys majorKey:aMajorKey
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"setup for labels, selectors and class provider
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"
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self labels:listOfLabels.
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minorKeys := listOfMinorKeys.
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majorKey := aMajorKey.
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!
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majorKey
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"get the class providing the window specifications
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"
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^ majorKey
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!
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majorKey:aKey
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"get the class providing the window specifications
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"
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(majorKey := aKey) notNil ifTrue:[
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aKey isBehavior ifFalse:[
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majorKey := Smalltalk at:aKey asSymbol
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]
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].
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self selection:nil
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!
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minorKeys
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"get the list of selector keys
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"
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^ minorKeys
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!
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minorKeys:aListOfSelectors
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"set the list of selectors
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"
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minorKeys := aListOfSelectors.
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tabRaw selection:nil.
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! !
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!UIGalleryView methodsFor:'accessing holders'!
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clientSpecHolder
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"get the holder which keeps the current selection or in case of
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no selection the specification under the cursor
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"
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^ canvas clientSpecHolder
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!
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clientSpecHolder:aHolder
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"set the holder which keeps the current selection or in case of
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no selection the specification under the cursor
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"
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canvas clientSpecHolder:aHolder
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!
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menuSelector
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^ canvas menuSelector
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!
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menuSelector:aSelector
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^ canvas menuSelector:aSelector
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!
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minorKeysHolder
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"get the holder keeping the minor keys; the selectors to access
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specifications from a class associated with the majorKey.
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"
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^ minorKeysHolder
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!
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minorKeysHolder:aValueHolder
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"set the holder keeping the minor keys; the selectors to access
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specifications from a class associated with the majorKey.
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"
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minorKeysHolder notNil ifTrue:[
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minorKeysHolder removeDependent:self.
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].
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(minorKeysHolder := aValueHolder) notNil ifTrue:[
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minorKeysHolder addDependent:self.
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].
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self minorKeys:(minorKeysHolder value)
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! !
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!UIGalleryView methodsFor:'change & update'!
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selectionChangedTo:something
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"selection changed
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"
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|specification selector selection application|
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selection := tabRaw listIndexOf:something.
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(selection notNil and:[minorKeys size >= selection]) ifTrue:[
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selector := minorKeys at:selection.
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(majorKey respondsTo:selector) ifTrue:[
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specification := majorKey perform:selector
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] ifFalse:[
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(application := self application) notNil ifTrue:[
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Object messageNotUnderstoodSignal handle:[:ex|
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(application class respondsTo:selector) ifTrue:[
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specification := application class perform:selector
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]
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] do:[
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specification := application aspectFor:selector
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]
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]
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]
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].
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canvas specification:specification.
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!
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update
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self selectionChangedTo:(tabRaw selection).
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!
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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 == minorKeysHolder ifTrue:[
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^ self minorKeys:( minorKeysHolder value)
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].
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super update:something with:aParameter from:changedObject.
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244 |
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! !
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246 |
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!UIGalleryView methodsFor:'initialization'!
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destroy
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minorKeysHolder notNil ifTrue:[
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minorKeysHolder removeDependent:self.
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minorKeysHolder := nil.
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].
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super destroy.
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!
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initialize
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"setup default attributes
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"
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canvas := Canvas.
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super initialize.
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tabRaw action:[:something| self selectionChangedTo:something ].
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! !
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!UIGalleryView::Canvas methodsFor:'accessing'!
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builder
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"get the builder used to setup a window from a specification (or nil in case
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of using a new builder)
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"
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^ uiBuilder
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!
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builder:something
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"set the builder used to setup a window from a specification (or nil in case
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of using a new builder)
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"
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uiBuilder := something.
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!
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clientSpecHolder
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"get the holder which keeps the current selection or in case of
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no selection the specification under the cursor
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"
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^ clientSpecHolder
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!
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clientSpecHolder:aHolder
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"set the holder which keeps the current selection or in case of
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no selection the specification under the cursor
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"
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(clientSpecHolder := aHolder) notNil ifTrue:[
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clientSpecHolder value:selection
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].
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!
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menuSelector
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"return the value of the instance variable 'menuSelector' (automatically generated)"
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^ menuSelector!
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menuSelector:something
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"set the value of the instance variable 'menuSelector' (automatically generated)"
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menuSelector := something.!
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specification
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"get current specification
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"
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^ specification
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!
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specification:aSpecOrSpecArray
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"set a new specification
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"
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|builder|
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self selection:nil.
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self subViews copy do:[:aSubView|
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aSubView ~~ inputView ifTrue:[
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aSubView destroy
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]
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].
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aSpecOrSpecArray notNil ifTrue:[
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specification := UISpecification from:aSpecOrSpecArray.
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205
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332 |
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(specification respondsTo:#buildViewFor:in:) ifFalse:[
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specification := nil.
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^ self
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].
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181
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builder := uiBuilder ? UIBuilder new.
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specification buildViewFor:builder in:self.
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subViews do:[:v|
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(v ~~ inputView and:[(self findSpecFor:v) notNil]) ifTrue:[
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v borderWidth:1.
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]
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].
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self shown ifTrue:[
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self realizeAllSubViews.
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inputView raise
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]
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] ifFalse:[
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specification := nil
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]
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352 |
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! !
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356 |
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!UIGalleryView::Canvas methodsFor:'building'!
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358 |
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buildSpecFrom:aSpec
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"build spec out of spec
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"
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|spec comp coll|
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363 |
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(aSpec notNil and:[aSpec canUIDrag]) ifFalse:[
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^ nil
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].
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367 |
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spec := aSpec copy.
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369 |
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(aSpec class supportsSubComponents and:[aSpec component notNil]) ifFalse:[
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^ spec
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].
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comp := aSpec component.
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spec component:nil.
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375 |
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comp canUIDrag ifFalse:[
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^ spec
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].
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coll := OrderedCollection new.
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380 |
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comp do:[:anEntry||spc|
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(spc := self buildSpecFrom:anEntry) notNil ifTrue:[
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coll add:spc
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]
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].
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coll isEmpty ifTrue:[
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^ spec
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].
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comp := comp copy.
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comp collection:coll.
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spec component:comp.
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^ spec
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393 |
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394 |
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395 |
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396 |
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397 |
! !
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398 |
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399 |
!UIGalleryView::Canvas methodsFor:'drag & drop'!
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400 |
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401 |
startDrag
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402 |
"start drag of selection
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403 |
"
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404 |
|dragObj spec name|
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405 |
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406 |
spec := self findSpecFor:selection.
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407 |
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spec notNil ifTrue:[
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spec := self buildSpecFrom:spec.
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410 |
name := spec className asString.
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411 |
name := name copyFrom:1 to:(name size - ('Spec' size) + 1).
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412 |
name at:1 put:(name at:1) asLowercase.
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413 |
name at:(name size) put:$1.
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414 |
spec name:name.
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415 |
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416 |
self showUnselected.
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417 |
dragObj := DropSpec for:selection specification:spec.
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418 |
self showSelected.
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419 |
DragAndDropManager startDrag:dragObj from:inputView.
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420 |
]
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|
421 |
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422 |
! !
|
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423 |
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424 |
!UIGalleryView::Canvas methodsFor:'event handling'!
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425 |
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426 |
buttonMotion:state x:x y:y
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427 |
"start a drag on selection
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|
428 |
"
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429 |
|sensor|
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430 |
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431 |
(lastClickPoint notNil and:[selection notNil]) ifTrue:[
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|
432 |
sensor := self sensor.
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|
433 |
sensor anyButtonPressed ifTrue:[
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434 |
(lastClickPoint dist:(x@y)) > 10.0 ifTrue:[
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|
435 |
^ self startDrag
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|
436 |
]
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437 |
]
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438 |
]
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439 |
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440 |
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441 |
!
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442 |
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443 |
buttonPress:button x:x y:y
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444 |
"change selection
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445 |
"
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446 |
|application|
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447 |
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448 |
button == 1 ifTrue:[
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449 |
lastClickPoint := Point x:x y:y.
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450 |
self selection:(self findObjectAtX:x y:y).
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451 |
] ifFalse:[
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452 |
lastClickPoint := nil.
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453 |
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454 |
(menuSelector notNil and:[(application := self application) notNil]) ifTrue:[
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455 |
Object messageNotUnderstoodSignal handle:[:ex|
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456 |
] do:[
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457 |
application aspectFor:menuSelector
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458 |
]
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459 |
]
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460 |
]
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461 |
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462 |
!
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463 |
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464 |
exposeX:x y:y width:w height:h
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465 |
"handle an expose event from device; redraw selection
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466 |
"
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467 |
super exposeX:x y:y width:w height:h.
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468 |
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469 |
(selection notNil and:[self sensor hasExposeEventFor:selection]) ifFalse:[
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|
470 |
self showSelected.
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|
471 |
].
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472 |
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473 |
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474 |
! !
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475 |
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476 |
!UIGalleryView::Canvas methodsFor:'initialization'!
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477 |
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478 |
initialize
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479 |
super initialize.
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480 |
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481 |
inputView := InputView origin:0.0@0.0 extent:1.0@1.0 in:self.
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482 |
inputView eventReceiver:self.
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483 |
inputView enableButtonEvents.
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484 |
inputView enableButtonMotionEvents.
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485 |
inputView enableMotionEvents.
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486 |
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487 |
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488 |
! !
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489 |
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490 |
!UIGalleryView::Canvas methodsFor:'searching'!
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491 |
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492 |
findObjectAtX:x y:y
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493 |
"find the origin/corner of the currentWidget
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|
494 |
"
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|
495 |
|point id p e|
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496 |
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|
497 |
point := Point x:x y:y.
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498 |
id := inputView id.
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499 |
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500 |
subViews do:[:v|
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501 |
v ~~ inputView ifTrue:[
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|
502 |
p := device translatePoint:point from:id to:(v id).
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|
503 |
( p x >= 0 and:[p x <= v width
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|
504 |
and:[p y >= 0 and:[p y <= v height
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|
505 |
and:[(self findSpecFor:v) notNil]]]]
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|
506 |
) ifTrue:[
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|
507 |
^ v
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|
508 |
]
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|
509 |
]
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|
510 |
].
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|
511 |
^ nil
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|
512 |
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513 |
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|
514 |
!
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515 |
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|
516 |
findSpecFor:anObject
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|
517 |
"returns subspec assigned to instance or nil
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|
518 |
"
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|
519 |
|name components spec|
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|
520 |
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|
521 |
anObject notNil ifTrue:[
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|
522 |
name := anObject name.
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|
523 |
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|
524 |
specification do:[:aSpec|
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|
525 |
aSpec name = name ifTrue:[
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|
526 |
aSpec canUIDrag ifTrue:[^ aSpec]
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|
527 |
ifFalse:[^ nil]
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|
528 |
]
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|
529 |
]
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|
530 |
].
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|
531 |
^ nil
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|
532 |
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533 |
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|
534 |
! !
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535 |
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|
536 |
!UIGalleryView::Canvas methodsFor:'selection'!
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|
537 |
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|
538 |
handlesOf:aComponent do:aOneArgBlock
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|
539 |
"evaluate the block on each handle; the argument to the block
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|
540 |
is a rectangle
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|
541 |
"
|
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|
542 |
aComponent notNil ifTrue:[
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|
543 |
aOneArgBlock value:(aComponent origin - (2@2) extent:6@6).
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544 |
aOneArgBlock value:(aComponent corner - (1@1) extent:6@6).
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545 |
aOneArgBlock value:(aComponent topRight - (1@2) extent:6@6).
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|
546 |
aOneArgBlock value:(aComponent bottomLeft - (2@1) extent:6@6).
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|
547 |
aOneArgBlock value:(aComponent leftCenter - (2@0) extent:6@6).
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|
548 |
aOneArgBlock value:(aComponent rightCenter - (1@0) extent:6@6).
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|
549 |
aOneArgBlock value:(aComponent topCenter - (0@2) extent:6@6).
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|
550 |
aOneArgBlock value:(aComponent bottomCenter - (0@1) extent:6@6).
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|
551 |
]
|
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|
552 |
|
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|
553 |
|
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|
554 |
!
|
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|
555 |
|
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|
556 |
selection:anObject
|
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|
557 |
"selection changed
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|
558 |
"
|
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|
559 |
|name spec|
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|
560 |
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|
561 |
selection ~~ anObject ifTrue:[
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|
562 |
self showUnselected.
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|
563 |
spec := self findSpecFor:anObject.
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|
564 |
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|
565 |
spec notNil ifTrue:[
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|
566 |
selection := anObject.
|
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|
567 |
self showSelected
|
|
|
568 |
] ifFalse:[
|
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|
569 |
selection := nil
|
|
|
570 |
].
|
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|
571 |
clientSpecHolder notNil ifTrue:[
|
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|
572 |
clientSpecHolder value:spec
|
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|
573 |
]
|
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|
574 |
]
|
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|
575 |
|
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|
576 |
|
|
|
577 |
!
|
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|
578 |
|
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|
579 |
showSelected
|
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|
580 |
"show selected
|
|
|
581 |
"
|
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|
582 |
self shown ifFalse:[^ self].
|
|
|
583 |
|
|
|
584 |
selection notNil ifTrue:[
|
|
|
585 |
self clippedByChildren:false.
|
|
|
586 |
|
|
|
587 |
self handlesOf:selection do:[:aRectangle|
|
|
|
588 |
self fillRectangle:aRectangle
|
|
|
589 |
].
|
|
|
590 |
self clippedByChildren:true.
|
|
|
591 |
].
|
|
|
592 |
|
|
|
593 |
|
|
|
594 |
!
|
|
|
595 |
|
|
|
596 |
showUnselected
|
|
|
597 |
"show unselected
|
|
|
598 |
"
|
|
|
599 |
|r currSel|
|
|
|
600 |
|
|
|
601 |
(currSel := selection) isNil ifTrue:[
|
|
|
602 |
^ self
|
|
|
603 |
].
|
|
|
604 |
selection := nil.
|
|
|
605 |
self shown ifFalse:[^ self].
|
|
|
606 |
|
|
|
607 |
self clippedByChildren:false.
|
|
|
608 |
|
|
|
609 |
self handlesOf:currSel do:[:aRectangle|
|
|
|
610 |
self clearRectangle:aRectangle
|
|
|
611 |
].
|
|
|
612 |
self clippedByChildren:true.
|
|
|
613 |
r := currSel bounds.
|
|
|
614 |
|
|
|
615 |
subViews do:[:sv|
|
|
|
616 |
|absOrg absFrame|
|
|
|
617 |
|
|
|
618 |
sv ~~ inputView ifTrue:[
|
|
|
619 |
(sv bounds intersects:r) ifTrue:[
|
|
|
620 |
sv borderColor:(Color gray:5).
|
|
|
621 |
sv borderColor:(Color black).
|
|
|
622 |
|
|
|
623 |
sv withAllSubViewsDo:[:v|
|
|
|
624 |
v fill:v viewBackground.
|
|
|
625 |
v exposeX:0 y:0 width:9999 height:9999.
|
|
|
626 |
]
|
|
|
627 |
]
|
|
|
628 |
]
|
|
|
629 |
].
|
|
|
630 |
selection := currSel.
|
|
|
631 |
|
|
|
632 |
! !
|
|
|
633 |
|
|
|
634 |
!UIGalleryView::Canvas::DropSpec class methodsFor:'instance creation'!
|
|
|
635 |
|
|
|
636 |
for:aView specification:aSpec
|
|
|
637 |
"create drop object for a view derived from a specification
|
|
|
638 |
"
|
|
|
639 |
|point extent root device|
|
|
|
640 |
|
|
|
641 |
device := aView device.
|
|
|
642 |
root := device rootView.
|
|
|
643 |
extent := aView extent.
|
|
|
644 |
point := device translatePoint:0@0 from:(aView id) to:(root id).
|
|
|
645 |
|
|
|
646 |
DisplayObject := nil.
|
|
|
647 |
|
|
|
648 |
(point x > 0 and:[point y > 0]) ifTrue:[
|
|
|
649 |
point := point + extent.
|
|
|
650 |
(point x < root width and:[point y < root height]) ifTrue:[
|
|
|
651 |
aView topView raise.
|
|
|
652 |
device sync.
|
|
|
653 |
aView invalidate.
|
|
|
654 |
aView windowGroup processExposeEvents.
|
|
|
655 |
DisplayObject := Image fromView:aView grab:false.
|
|
|
656 |
]
|
|
|
657 |
].
|
|
|
658 |
DisplayObject isNil ifTrue:[
|
|
|
659 |
DisplayObject := Form extent:extent depth:1.
|
|
|
660 |
DisplayObject colorMap:(Array with:Color white with:Color black).
|
|
|
661 |
DisplayObject fill:(Color colorId:0).
|
|
|
662 |
DisplayObject paint:(Color colorId:1).
|
|
|
663 |
DisplayObject displayRectangleX:0 y:0 width:aView extent x height:aView extent y.
|
|
|
664 |
].
|
|
|
665 |
aSpec class == UISubSpecification ifTrue:[
|
|
|
666 |
aSpec layout:(LayoutOrigin fromPoint:0@0)
|
|
|
667 |
].
|
|
|
668 |
^ self new theObject:aSpec
|
|
|
669 |
! !
|
|
|
670 |
|
|
|
671 |
!UIGalleryView class methodsFor:'documentation'!
|
|
|
672 |
|
|
|
673 |
version
|
|
|
674 |
^ '$Header$'
|
|
|
675 |
! !
|