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"
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COPYRIGHT (c) 1992 by Claus Gittinger
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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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Object subclass:#Cursor
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instanceVariableNames:'shape sourceForm maskForm hotX hotY
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device cursorId'
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classVariableNames: 'lobby
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DefaultFgColor DefaultBgColor
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NormalCursor HandCursor ArrowCursor
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ReadCursor WriteCursor WaitCursor
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XeqCursor CrossHairCursor OriginCursor
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CornerCursor SquareCursor FourWayCursor
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UpDownArrowCursor LeftRightArrowCursor
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Wait2Cursor Wait3Cursor Wait4Cursor'
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poolDictionaries:''
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category:'Graphics-Support'
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!
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Cursor comment:'
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COPYRIGHT (c) 1992 by Claus Gittinger
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All Rights Reserved
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$Header: /cvs/stx/stx/libview/Cursor.st,v 1.4 1993-10-13 02:42:52 claus Exp $
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35 |
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see Cursor class documentation for info.
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rewritten from XCursor summer 92 by claus
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'!
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!Cursor class methodsFor:'documentation'!
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documentation
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"
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I represents cursors in a device independent manner.
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Instance variables:
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shape <Symbol> a shape (i.e. #arrow, #hand, ...) or nil
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sourceForm <Form> if shape is nil, the source bits
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maskForm <Form> if shape is nil, the mask bits
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hotX <SmallInteger> if shape is nil, the hotSpot x of the cursor
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hotY <SmallInteger> if shape is nil, the hotSpot y of the cursor
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device <aDevice> the device, if associated to one
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cursorId <anObject> the device-specific id if device is nonNil
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class variables:
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2
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lobby <Registry> keeps track of known device cursors
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0
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DefaultFgColor <Color> default foreground color for cursors (usually black)
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DefaultBgColor <Color> default background color for cursors (usually white)
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NormalCursor <Cursor> cached instance of normal (arrow) cursor
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...
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"
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! !
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!Cursor class methodsFor:'initialization'!
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initialize
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lobby isNil ifTrue:[
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lobby := Registry new.
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"want to be informed when returning from snapshot"
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ObjectMemory addDependent:self
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]
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!
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flushDeviceCursors
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"unassign all cursors from their device"
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lobby contentsDo:[:aCursor |
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aCursor restored.
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lobby changed:aCursor
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]
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!
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update:something
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"sent when restarted after a snapIn"
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(something == #restarted) ifTrue:[
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self flushDeviceCursors
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]
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! !
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!Cursor class methodsFor:'default access'!
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defaultFgColor:fgColor defaultBgColor:bgColor
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"set the default colors used for cursors"
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DefaultFgColor := fgColor.
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DefaultBgColor := bgColor
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! !
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!Cursor class methodsFor:'instance creation'!
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extent:extent fromArray:array offset:offset
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"create a new bitmap cursor from bits in the array argument
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- ST-80 compatibility"
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|sourceForm|
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sourceForm := Form extent:extent fromArray:array offset:offset.
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^ self sourceForm:sourceForm maskForm:sourceForm hotSpot:(offset negated)
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!
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extent:extent sourceArray:sourceArray maskArray:maskArray offset:offset
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"create a new bitmap cursor with mask from bits in sourceArray and
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maskArray"
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|sourceForm maskForm|
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sourceForm := Form extent:extent fromArray:sourceArray offset:offset.
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maskForm := Form extent:extent fromArray:maskArray offset:offset.
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^ self sourceForm:sourceForm maskForm:maskForm hotSpot:(offset negated)
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!
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sourceForm:aForm
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"return a new cursor.
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Source- and mask-Bits are taken from aForm; hotSpot is center"
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^ self sourceForm:aForm
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maskForm:aForm
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hotX:(aForm width // 2)
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hotY:(aForm height // 2)
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!
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sourceForm:sourceForm maskForm:maskForm
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"return a new cursor. hotSpot is center"
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^ self sourceForm:sourceForm
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maskForm:maskForm
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hotX:(sourceForm width // 2)
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hotY:(sourceForm height // 2)
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!
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sourceForm:sourceForm maskForm:maskForm hotSpot:aPoint
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"return a new cursor"
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^ self sourceForm:sourceForm
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maskForm:maskForm
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hotX:(aPoint x)
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hotY:(aPoint y)
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!
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sourceForm:sourceForm maskForm:maskForm hotX:hotX hotY:hotY
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"return a new cursor"
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|newCursor|
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"first look if not already known"
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lobby contentsDo:[:aCursor |
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(aCursor sourceForm == sourceForm) ifTrue:[
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(aCursor maskForm == maskForm) ifTrue:[
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(aCursor hotX == hotX) ifTrue:[
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(aCursor hotY == hotY) ifTrue:[
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^ aCursor
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]
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]
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]
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]
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].
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2
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newCursor := self basicNew setSourceForm:sourceForm
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maskForm:maskForm
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hotX:hotX
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hotY:hotY.
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0
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lobby register:newCursor.
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^ newCursor
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!
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shape:aShape
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"return one of the standard cursors.
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Each display may offer different shapes - see for example XWorkstation
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for details (however a basic minimum set should be supported by all)"
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|newCursor|
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"first look if not already known"
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lobby contentsDo:[:aCursor |
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(aCursor shape == aShape) ifTrue:[
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^ aCursor
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]
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].
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2
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newCursor := self basicNew setShape:aShape.
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lobby register:newCursor.
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^ newCursor
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!
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fileCursorNamed:cursorName
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"return a cursor read from the files 'cursorName_bits.bit' and
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'cursorName_mask.bit' - return nil if file does not exist"
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|cursorBits maskBits|
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206 |
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cursorBits := Form fromFile:(cursorName , '_bits.bit').
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cursorBits notNil ifTrue:[
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maskBits := Form fromFile:(cursorName , '_mask.bit').
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maskBits notNil ifTrue:[
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^ self sourceForm:cursorBits maskForm:maskBits
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]
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].
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^ nil
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! !
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!Cursor class methodsFor:'standard cursors'!
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normal
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"return the normal cursor; an arrow.
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for ST-80 compatibility"
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NormalCursor isNil ifTrue:[
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NormalCursor := self arrow
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].
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^ NormalCursor
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!
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hand
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"return a hand cursor"
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HandCursor isNil ifTrue:[
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HandCursor := self shape:#upRightHand
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].
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^ HandCursor
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!
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upRightHand
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"return an up-right-hand cursor"
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^ self shape:#upRightHand
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!
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leftHand
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"return a left-hand cursor"
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^ self shape:#leftHand
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!
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upDownArrow
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"return an up-down-arrow cursor"
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UpDownArrowCursor isNil ifTrue:[
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UpDownArrowCursor := self shape:#upDownArrow
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].
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^ UpDownArrowCursor
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!
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leftRightArrow
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"return a left-right-arrow cursor"
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LeftRightArrowCursor isNil ifTrue:[
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LeftRightArrowCursor := self shape:#leftRightArrow
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].
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^ LeftRightArrowCursor
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!
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267 |
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upLimitArrow
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"return an up-arrow-to-limit cursor"
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^ self shape:#upLimitArrow
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!
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downLimitArrow
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"return a down-arrow-to-limit cursor"
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276 |
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^ self shape:#downLimitArrow
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!
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279 |
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leftLimitArrow
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"return a left-arrow-to-limit cursor"
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282 |
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^ self shape:#leftLimitArrow
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!
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285 |
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rightLimitArrowOn
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"return a right-arrow-to-limit cursor"
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288 |
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^ self shape:#rightLimitArrow
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!
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291 |
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text
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"return a text-cursor"
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^ self shape:#text
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!
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297 |
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arrow
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"return an arrow (up-left-arrow) cursor"
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300 |
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^ self shape:#upLeftArrow
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!
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upLeftArrow
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"return an up-right-arrow cursor"
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306 |
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^ self shape:#upLeftArrow
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!
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309 |
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upRightArrow
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"return an up-right-arrow cursor"
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312 |
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^ self shape:#upRightArrow
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!
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315 |
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questionMark
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"return a question-mark cursor"
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318 |
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^ self shape:#questionMark
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!
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321 |
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322 |
cross
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"return a cross cursor"
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324 |
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^ self shape:#cross
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!
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327 |
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328 |
origin
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"return an origin cursor"
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330 |
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OriginCursor isNil ifTrue:[
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OriginCursor := self shape:#origin
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].
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^ OriginCursor
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!
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336 |
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337 |
corner
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338 |
"return a corner cursor"
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339 |
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CornerCursor isNil ifTrue:[
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341 |
CornerCursor := self shape:#corner
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342 |
].
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343 |
^ CornerCursor
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344 |
!
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345 |
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346 |
crossHair
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347 |
"return a crossHair cursor"
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348 |
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CrossHairCursor isNil ifTrue:[
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350 |
CrossHairCursor := self shape:#crossHair
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351 |
].
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352 |
^ CrossHairCursor
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353 |
!
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354 |
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355 |
fourWay
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356 |
"return a four-way arrow cursor"
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357 |
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358 |
FourWayCursor isNil ifTrue:[
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359 |
FourWayCursor := self shape:#fourWay
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360 |
].
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361 |
^ FourWayCursor
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362 |
!
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363 |
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364 |
wait
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365 |
"return a wait cursor"
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366 |
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367 |
WaitCursor isNil ifTrue:[
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|
368 |
WaitCursor := self shape:#wait
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|
369 |
].
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|
370 |
^ WaitCursor
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371 |
!
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372 |
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2
|
373 |
wait2
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374 |
"return a wait cursor showing 3 o'clock"
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375 |
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376 |
Wait2Cursor isNil ifTrue:[
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|
377 |
Wait2Cursor := (self
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|
378 |
extent: 16@16
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|
379 |
sourceArray: #(
|
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|
380 |
2r0001111111100000
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381 |
2r0001111111100000
|
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382 |
2r0001111111100000
|
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383 |
2r0011111111110000
|
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384 |
2r0110000000011000
|
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385 |
2r1100000000001100
|
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386 |
2r1000000000000111
|
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387 |
2r1000001110000111
|
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388 |
2r1000001111111111
|
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389 |
2r1000010000000111
|
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390 |
2r1100100000001100
|
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391 |
2r0110000000011000
|
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392 |
2r0011111111110000
|
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393 |
2r0001111111100000
|
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394 |
2r0001111111100000
|
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395 |
2r0001111111100000
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396 |
)
|
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397 |
maskArray: #(
|
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398 |
2r0011111111110000
|
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399 |
2r0011111111110000
|
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400 |
2r0011111111110000
|
|
|
401 |
2r0111111111111000
|
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|
402 |
2r1111111111111100
|
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|
403 |
2r1111111111111111
|
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|
404 |
2r1111111111111111
|
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|
405 |
2r1111111111111111
|
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|
406 |
2r1111111111111111
|
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|
407 |
2r1111111111111111
|
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|
408 |
2r1111111111111111
|
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|
409 |
2r1111111111111100
|
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|
410 |
2r0111111111111000
|
|
|
411 |
2r0011111111110000
|
|
|
412 |
2r0011111111110000
|
|
|
413 |
2r0011111111110000
|
|
|
414 |
)
|
|
|
415 |
offset: -15 @ -9).
|
|
|
416 |
Wait2Cursor := Wait2Cursor on:Display.
|
|
|
417 |
].
|
|
|
418 |
^ Wait2Cursor
|
|
|
419 |
!
|
|
|
420 |
|
|
|
421 |
wait3
|
|
|
422 |
"return a wait cursor showing 6 o'clock"
|
|
|
423 |
|
|
|
424 |
Wait3Cursor isNil ifTrue:[
|
|
|
425 |
Wait3Cursor := (Cursor
|
|
|
426 |
extent: 16@16
|
|
|
427 |
sourceArray: #(
|
|
|
428 |
2r0001111111100000
|
|
|
429 |
2r0001111111100000
|
|
|
430 |
2r0001111111100000
|
|
|
431 |
2r0011111111110000
|
|
|
432 |
2r0110000000011000
|
|
|
433 |
2r1100000000001100
|
|
|
434 |
2r1000000000000111
|
|
|
435 |
2r1000001110000111
|
|
|
436 |
2r1000001110000111
|
|
|
437 |
2r1000010100000111
|
|
|
438 |
2r1100100100001100
|
|
|
439 |
2r0110000100011000
|
|
|
440 |
2r0011111111110000
|
|
|
441 |
2r0001111111100000
|
|
|
442 |
2r0001111111100000
|
|
|
443 |
2r0001111111100000
|
|
|
444 |
)
|
|
|
445 |
maskArray: #(
|
|
|
446 |
2r0011111111110000
|
|
|
447 |
2r0011111111110000
|
|
|
448 |
2r0011111111110000
|
|
|
449 |
2r0111111111111000
|
|
|
450 |
2r1111111111111100
|
|
|
451 |
2r1111111111111111
|
|
|
452 |
2r1111111111111111
|
|
|
453 |
2r1111111111111111
|
|
|
454 |
2r1111111111111111
|
|
|
455 |
2r1111111111111111
|
|
|
456 |
2r1111111111111111
|
|
|
457 |
2r1111111111111100
|
|
|
458 |
2r0111111111111000
|
|
|
459 |
2r0011111111110000
|
|
|
460 |
2r0011111111110000
|
|
|
461 |
2r0011111111110000
|
|
|
462 |
)
|
|
|
463 |
offset: -15 @ -9).
|
|
|
464 |
Wait3Cursor := Wait3Cursor on:Display.
|
|
|
465 |
].
|
|
|
466 |
^ Wait3Cursor
|
|
|
467 |
!
|
|
|
468 |
|
|
|
469 |
wait4
|
|
|
470 |
"return a wait cursor showing 9 o'clock"
|
|
|
471 |
|
|
|
472 |
Wait4Cursor isNil ifTrue:[
|
|
|
473 |
Wait4Cursor := (Cursor
|
|
|
474 |
extent: 16@16
|
|
|
475 |
sourceArray: #(
|
|
|
476 |
2r0001111111100000
|
|
|
477 |
2r0001111111100000
|
|
|
478 |
2r0001111111100000
|
|
|
479 |
2r0011111111110000
|
|
|
480 |
2r0110000000011000
|
|
|
481 |
2r1100000000001100
|
|
|
482 |
2r1000000000000111
|
|
|
483 |
2r1111111110000111
|
|
|
484 |
2r1000001110000111
|
|
|
485 |
2r1000010000000111
|
|
|
486 |
2r1100100000001100
|
|
|
487 |
2r0110000000011000
|
|
|
488 |
2r0011111111110000
|
|
|
489 |
2r0001111111100000
|
|
|
490 |
2r0001111111100000
|
|
|
491 |
2r0001111111100000
|
|
|
492 |
)
|
|
|
493 |
maskArray: #(
|
|
|
494 |
2r0011111111110000
|
|
|
495 |
2r0011111111110000
|
|
|
496 |
2r0011111111110000
|
|
|
497 |
2r0111111111111000
|
|
|
498 |
2r1111111111111100
|
|
|
499 |
2r1111111111111111
|
|
|
500 |
2r1111111111111111
|
|
|
501 |
2r1111111111111111
|
|
|
502 |
2r1111111111111111
|
|
|
503 |
2r1111111111111111
|
|
|
504 |
2r1111111111111111
|
|
|
505 |
2r1111111111111100
|
|
|
506 |
2r0111111111111000
|
|
|
507 |
2r0011111111110000
|
|
|
508 |
2r0011111111110000
|
|
|
509 |
2r0011111111110000
|
|
|
510 |
)
|
|
|
511 |
offset: -15 @ -9).
|
|
|
512 |
Wait4Cursor := Wait4Cursor on:Display.
|
|
|
513 |
].
|
|
|
514 |
^ Wait4Cursor
|
|
|
515 |
!
|
|
|
516 |
|
|
0
|
517 |
read
|
|
|
518 |
"return a reading-file cursor"
|
|
|
519 |
|
|
|
520 |
ReadCursor isNil ifTrue:[
|
|
|
521 |
ReadCursor := self shape:#wait
|
|
|
522 |
].
|
|
|
523 |
^ ReadCursor
|
|
|
524 |
!
|
|
|
525 |
|
|
|
526 |
write
|
|
|
527 |
"return a writing-file cursor"
|
|
|
528 |
|
|
|
529 |
WriteCursor isNil ifTrue:[
|
|
|
530 |
WriteCursor := self shape:#wait
|
|
|
531 |
].
|
|
|
532 |
^ WriteCursor
|
|
|
533 |
!
|
|
|
534 |
|
|
|
535 |
execute
|
|
|
536 |
"return a execute cursor - ST-80 compatibility"
|
|
|
537 |
|
|
|
538 |
XeqCursor isNil ifTrue:[
|
|
|
539 |
XeqCursor := self shape:#wait
|
|
|
540 |
].
|
|
|
541 |
^ XeqCursor
|
|
|
542 |
! !
|
|
|
543 |
|
|
|
544 |
!Cursor methodsFor:'instance release'!
|
|
|
545 |
|
|
|
546 |
disposed
|
|
|
547 |
"some Cursor has been collected - tell it to the x-server"
|
|
|
548 |
|
|
|
549 |
cursorId notNil ifTrue:[
|
|
|
550 |
device destroyCursor:cursorId.
|
|
|
551 |
]
|
|
|
552 |
! !
|
|
|
553 |
|
|
2
|
554 |
!Cursor methodsFor:'private accessing'!
|
|
|
555 |
|
|
|
556 |
setShape:aShapeSymbol
|
|
|
557 |
"set the shape"
|
|
|
558 |
|
|
|
559 |
shape := aShapeSymbol.
|
|
|
560 |
!
|
|
|
561 |
|
|
|
562 |
setSourceForm:sForm maskForm:mForm hotX:hx hotY:hy
|
|
|
563 |
"set the forms and hotspot"
|
|
|
564 |
|
|
|
565 |
sourceForm := sForm.
|
|
|
566 |
maskForm := mForm.
|
|
|
567 |
hotX := hx.
|
|
|
568 |
hotY := hy.
|
|
|
569 |
!
|
|
|
570 |
|
|
|
571 |
setDevice:aDevice id:anId
|
|
|
572 |
"set the device and deviceId of the receiver"
|
|
|
573 |
|
|
|
574 |
device := aDevice.
|
|
|
575 |
cursorId := anId
|
|
|
576 |
! !
|
|
|
577 |
|
|
0
|
578 |
!Cursor methodsFor:'accessing'!
|
|
|
579 |
|
|
|
580 |
id
|
|
|
581 |
"return the cursors deviceId"
|
|
|
582 |
|
|
|
583 |
^ cursorId
|
|
|
584 |
!
|
|
|
585 |
|
|
|
586 |
device
|
|
|
587 |
"return the device I am associated with"
|
|
|
588 |
|
|
|
589 |
^ device
|
|
|
590 |
!
|
|
|
591 |
|
|
|
592 |
shape
|
|
|
593 |
"return the shape"
|
|
|
594 |
|
|
|
595 |
^ shape
|
|
|
596 |
!
|
|
|
597 |
|
|
|
598 |
sourceForm
|
|
|
599 |
"return the source-form of the receiver"
|
|
|
600 |
|
|
|
601 |
^ sourceForm
|
|
|
602 |
!
|
|
|
603 |
|
|
|
604 |
sourceForm:aForm
|
|
|
605 |
"set the source-form of the receiver"
|
|
|
606 |
|
|
|
607 |
sourceForm := aForm
|
|
|
608 |
!
|
|
|
609 |
|
|
|
610 |
maskForm
|
|
|
611 |
"return the mask-form of the receiver"
|
|
|
612 |
|
|
|
613 |
^ maskForm
|
|
|
614 |
!
|
|
|
615 |
|
|
|
616 |
maskForm:aForm
|
|
|
617 |
"set the mask-form of the receiver"
|
|
|
618 |
|
|
|
619 |
maskForm := aForm
|
|
|
620 |
!
|
|
|
621 |
|
|
|
622 |
hotX
|
|
|
623 |
"return the hotspots x-coordinate of the receiver"
|
|
|
624 |
|
|
|
625 |
^ hotX
|
|
|
626 |
!
|
|
|
627 |
|
|
|
628 |
hotY
|
|
|
629 |
"return the hotspots y-coordinate of the receiver"
|
|
|
630 |
|
|
|
631 |
^ hotY
|
|
|
632 |
!
|
|
|
633 |
|
|
|
634 |
foreground:fgColor background:bgColor
|
|
|
635 |
"set the cursor colors"
|
|
|
636 |
|
|
|
637 |
device colorCursor:cursorId foreground:fgColor background:bgColor
|
|
|
638 |
! !
|
|
|
639 |
|
|
|
640 |
!Cursor methodsFor:'creating a device cursor'!
|
|
|
641 |
|
|
|
642 |
on:aDevice
|
|
|
643 |
"create a new Cursor representing the same cursor as
|
|
|
644 |
myself on aDevice; if one already exists, return the one"
|
|
|
645 |
|
|
|
646 |
|newCursor index id|
|
|
|
647 |
|
|
|
648 |
aDevice isNil ifTrue:[
|
|
|
649 |
"this may not happen"
|
|
|
650 |
self error:'nil device'
|
|
|
651 |
].
|
|
|
652 |
|
|
|
653 |
"if Iam already assigned to that device ..."
|
|
|
654 |
(device == aDevice) ifTrue:[^ self].
|
|
|
655 |
|
|
|
656 |
"first look if not already there"
|
|
|
657 |
lobby contentsDo:[:aCursor |
|
|
|
658 |
(aCursor device == aDevice) ifTrue:[
|
|
|
659 |
shape notNil ifTrue:[
|
|
|
660 |
(aCursor shape == shape) ifTrue:[
|
|
|
661 |
^ aCursor
|
|
|
662 |
]
|
|
|
663 |
] ifFalse:[
|
|
|
664 |
(aCursor sourceForm == sourceForm) ifTrue:[
|
|
|
665 |
(aCursor maskForm == maskForm) ifTrue:[
|
|
|
666 |
(aCursor hotX == hotX) ifTrue:[
|
|
|
667 |
(aCursor hotY == hotY) ifTrue:[
|
|
|
668 |
^ aCursor
|
|
|
669 |
]
|
|
|
670 |
]
|
|
|
671 |
]
|
|
|
672 |
]
|
|
|
673 |
]
|
|
|
674 |
]
|
|
|
675 |
].
|
|
|
676 |
|
|
|
677 |
"ask that device for the cursor"
|
|
|
678 |
shape notNil ifTrue:[
|
|
2
|
679 |
id := aDevice createCursorShape:shape.
|
|
|
680 |
id isNil ifTrue:[
|
|
|
681 |
'no cursor with shape:' print. shape printNewline.
|
|
|
682 |
^ nil
|
|
|
683 |
].
|
|
0
|
684 |
] ifFalse:[
|
|
|
685 |
id := aDevice createCursorSourceForm:sourceForm
|
|
|
686 |
maskForm:maskForm
|
|
|
687 |
hotX:hotX
|
|
2
|
688 |
hotY:hotY.
|
|
|
689 |
id isNil ifTrue:[
|
|
|
690 |
'cannot create cursor' printNewline.
|
|
|
691 |
^ nil
|
|
|
692 |
].
|
|
0
|
693 |
].
|
|
|
694 |
|
|
|
695 |
"goody for IRIXs red cursor"
|
|
|
696 |
DefaultFgColor notNil ifTrue:[
|
|
|
697 |
aDevice colorCursor:id foreground:DefaultFgColor
|
|
|
698 |
background:DefaultBgColor
|
|
|
699 |
].
|
|
|
700 |
|
|
|
701 |
device isNil ifTrue:[
|
|
|
702 |
"receiver was not associated - do it now"
|
|
|
703 |
device := aDevice.
|
|
|
704 |
cursorId := id.
|
|
|
705 |
|
|
|
706 |
"must unregister, the old registration had a nil cursorId in it"
|
|
|
707 |
lobby changed:self.
|
|
|
708 |
^ self
|
|
|
709 |
].
|
|
|
710 |
|
|
|
711 |
"receiver was already associated to another device - need a new cursor"
|
|
2
|
712 |
newCursor := self class basicNew.
|
|
0
|
713 |
shape notNil ifTrue:[
|
|
2
|
714 |
newCursor setShape:shape.
|
|
0
|
715 |
] ifFalse:[
|
|
2
|
716 |
newCursor setSourceForm:sourceForm
|
|
|
717 |
maskForm:maskForm
|
|
|
718 |
hotX:hotX
|
|
|
719 |
hotY:hotY
|
|
0
|
720 |
].
|
|
2
|
721 |
newCursor setDevice:aDevice id:id.
|
|
0
|
722 |
lobby register:newCursor.
|
|
|
723 |
^ newCursor
|
|
|
724 |
! !
|
|
|
725 |
|
|
|
726 |
!Cursor methodsFor:'private'!
|
|
|
727 |
|
|
|
728 |
device:aDevice
|
|
|
729 |
device := aDevice
|
|
|
730 |
!
|
|
|
731 |
|
|
|
732 |
id:anId
|
|
|
733 |
"set the cursors deviceId"
|
|
|
734 |
|
|
|
735 |
cursorId := anId
|
|
|
736 |
!
|
|
|
737 |
|
|
2
|
738 |
restored
|
|
0
|
739 |
"set both device and id"
|
|
|
740 |
|
|
|
741 |
device := nil.
|
|
|
742 |
cursorId := nil
|
|
|
743 |
! !
|
|
|
744 |
|
|
|
745 |
!Cursor methodsFor:'displaying'!
|
|
|
746 |
|
|
|
747 |
showIn:aView
|
|
|
748 |
aView cursor:self
|
|
|
749 |
!
|
|
|
750 |
|
|
|
751 |
showIn:aView while:aBlock
|
|
|
752 |
|savedCursor|
|
|
|
753 |
|
|
|
754 |
savedCursor := aView cursor.
|
|
|
755 |
aView cursor:self.
|
|
|
756 |
[
|
|
|
757 |
aBlock value.
|
|
|
758 |
] valueNowOrOnUnwindDo:[
|
|
|
759 |
aView cursor:savedCursor
|
|
|
760 |
]
|
|
|
761 |
!
|
|
|
762 |
|
|
|
763 |
showWhile:aBlock
|
|
|
764 |
"change all views cursors to the receiver.
|
|
|
765 |
In X this seems to be very slow"
|
|
|
766 |
|
|
|
767 |
|v|
|
|
|
768 |
|
|
|
769 |
Display setCursors:self.
|
|
|
770 |
"ModalDisplay setCursors:self."
|
|
|
771 |
v := aBlock valueNowOrOnUnwindDo:[
|
|
|
772 |
Display restoreCursors.
|
|
|
773 |
"ModalDisplay restoreCursors"
|
|
|
774 |
].
|
|
|
775 |
^ v
|
|
|
776 |
!
|
|
|
777 |
|
|
|
778 |
displayOn:aGC at:origin clippingBox:aRectangle rule:aRule mask:aMask
|
|
|
779 |
"ST-80 compatibility;
|
|
|
780 |
limited functionality: can only display bitmap cursors (yet)"
|
|
|
781 |
|
|
|
782 |
sourceForm notNil ifTrue:[
|
|
|
783 |
sourceForm displayOn:aGC at:origin clippingBox:aRectangle
|
|
|
784 |
rule:aRule mask:aMask
|
|
|
785 |
]
|
|
|
786 |
! !
|