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"
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COPYRIGHT (c) 1996 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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ListEntry subclass:#LabelAndIcon
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instanceVariableNames:'icon gap string'
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classVariableNames:''
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poolDictionaries:''
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category:'Views-Support'
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!
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!LabelAndIcon class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 1996 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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!
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documentation
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"
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an icon and a string, side by side.
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178
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Usable as list entries in a listView (a fileList), as
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popUpMenuItems or as Label/Button image.
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This is an example class - currently not used by the system.
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Notice:
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This is different from ST-80's LabelAndIcon class, which
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inherits from Label. Therefore, things may change in the future.
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[author:]
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Claus Gittinger
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[see also:]
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ListEntry Text String Icon
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ListView SelectionInListView
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"
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!
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examples
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"
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in a listView:
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[exBegin]
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|top slv wrapper l fileImage dirImage|
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fileImage := Image
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width:16
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height:16
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depth:1
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fromArray:#[2r00000000 2r00000000
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2r00000000 2r00000000
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2r00011111 2r11100000
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2r00010000 2r00100000
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2r00010000 2r00011000
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2r00010000 2r00001000
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2r00010000 2r00001000
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2r00010000 2r00001000
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2r00010000 2r00001000
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2r00010000 2r00001000
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2r00010000 2r00001000
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2r00010000 2r00001000
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2r00010000 2r00001000
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2r00011111 2r11111000
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2r00000000 2r00000000
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2r00000000 2r00000000].
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fileImage photometric:#whiteIs0.
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dirImage := Image
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width:16
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height:16
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depth:1
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fromArray:#[2r00000000 2r00000000
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2r00000000 2r00000000
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2r00000000 2r00000000
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2r01111111 2r11110000
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2r01000000 2r00001000
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2r01000000 2r00000100
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2r01000000 2r00000010
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2r01000000 2r00000010
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2r01000000 2r00000010
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2r01000000 2r00000010
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2r01000000 2r00000010
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2r01000000 2r00000010
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2r01111111 2r11111110
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2r00000000 2r00000000
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2r00000000 2r00000000
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2r00000000 2r00000000].
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dirImage photometric:#whiteIs0.
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l := OrderedCollection new.
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Filename currentDirectory directoryContents do:[:s |
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s asFilename isDirectory ifTrue:[
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l add:(LabelAndIcon icon:dirImage string:s)
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] ifFalse:[
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l add:(LabelAndIcon icon:fileImage string:s)
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]
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].
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slv := SelectionInListView new.
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slv list:l.
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wrapper := HVScrollableView forView:slv miniScrollerH:true.
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top := StandardSystemView extent:150@200.
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top add:wrapper in:(0.0@0.0 corner:1.0@1.0).
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top open.
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[exEnd]
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in a selectionInListView:
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[exBegin]
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|top slv wrapper l fileImage dirImage|
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dirImage := Image fromFile:'DirObj.xbm'.
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fileImage := Image fromFile:'FileObj.xbm'.
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l := OrderedCollection new.
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Filename currentDirectory directoryContents do:[:s |
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s asFilename isDirectory ifTrue:[
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l add:(LabelAndIcon icon:dirImage string:s)
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] ifFalse:[
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l add:(LabelAndIcon icon:fileImage string:s)
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]
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].
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slv := SelectionInListView new.
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slv list:l.
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wrapper := HVScrollableView forView:slv miniScrollerH:true.
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top := StandardSystemView extent:150@200.
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top add:wrapper in:(0.0@0.0 corner:1.0@1.0).
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top open.
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[exEnd]
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in a menu:
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[exBegin]
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|top l fileImage dirImage|
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dirImage := Image fromFile:'DirObj.xbm'.
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fileImage := Image fromFile:'FileObj.xbm'.
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l := OrderedCollection new.
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l add:(LabelAndIcon icon:dirImage string:'create directory').
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l add:(LabelAndIcon icon:fileImage string:'create file').
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top := View new.
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top middleButtonMenu:(PopUpMenu labels:l
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selectors:#(foo bar)).
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top open.
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[exEnd]
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in a button/label:
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[exBegin]
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|top l image|
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image := Image fromFile:'DirObj.xbm'.
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l := (LabelAndIcon icon:image string:'directory').
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top := Button label:l.
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top open.
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[exEnd]
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"
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! !
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!LabelAndIcon class methodsFor:'instance creation'!
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icon:anIcon string:aString
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^ self new icon:anIcon string:aString
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"Created: 12.5.1996 / 20:00:58 / cg"
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!
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new
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^ self basicNew initialize
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"Created: 12.5.1996 / 20:00:58 / cg"
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! !
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!LabelAndIcon methodsFor:'accessing'!
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gap:pixels
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"set the spacing between the icon and the labelString.
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The default is 4."
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gap := pixels.
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"Created: 12.5.1996 / 20:00:52 / cg"
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!
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icon
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"return my icon part"
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^ icon
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icon:anIcon
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"set the icon image"
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icon := anIcon.
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"Created: 12.5.1996 / 20:00:52 / cg"
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!
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icon:anIcon string:aString
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"set both iconImage and the labelString"
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icon := anIcon.
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string := aString
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"Created: 12.5.1996 / 20:00:52 / cg"
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!
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string
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"return my string part"
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^ string
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string:aString
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"set the labelString"
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string := aString
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"Created: 12.5.1996 / 20:00:52 / cg"
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! !
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!LabelAndIcon methodsFor:'conversion'!
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asString
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"return my string part"
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^ string
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"Created: 12.5.1996 / 21:26:47 / cg"
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! !
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!LabelAndIcon methodsFor:'displaying'!
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displayOn:aGC x:x y:y opaque:opaque
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"display the receiver on a GC"
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|yOffs font fH iH fA yI xOffs|
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font := aGC font.
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fH := font height.
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icon isNil ifTrue:[
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iH := 0.
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xOffs := 0.
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] ifFalse:[
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iH := icon height.
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xOffs := icon width + gap.
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].
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fA := font ascent.
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iH <= fA ifTrue:[
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"/ place the icon on the baseLine
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yI := y-fA.
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] ifFalse:[
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yI := y-fA+(font descent // 2)-1.
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].
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icon notNil ifTrue:[
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icon := icon on:aGC device.
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(opaque
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and:[icon mask isNil]) ifTrue:[
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aGC displayOpaqueForm:icon x:x y:yI.
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] ifFalse:[
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aGC displayForm:icon x:x y:yI.
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].
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].
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(iH > fH) ifTrue:[
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yOffs := (iH - fH) // 2
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] ifFalse:[
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yOffs := 0
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].
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180
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string
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displayOn:aGC
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x:x+xOffs
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y:y+yOffs.
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"Modified: 27.2.1997 / 14:56:19 / cg"
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! !
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!LabelAndIcon methodsFor:'initialization'!
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initialize
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gap := 4
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! !
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!LabelAndIcon methodsFor:'queries'!
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heightOn:aGC
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"return the height of the receiver, if it is to be displayed on aGC"
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|iconHeight|
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icon notNil ifTrue:[
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iconHeight := icon height + (aGC device pixelPerMillimeter x rounded)
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] ifFalse:[
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iconHeight := 0
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].
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^ iconHeight max:(string heightOn:aGC)
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172
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"Created: 12.5.1996 / 20:26:20 / cg"
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306
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"Modified: 27.2.1997 / 14:53:36 / cg"
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172
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!
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widthOn:aGC
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"return the width of the receiver, if it is to be displayed on aGC"
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306
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|iconWidth|
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icon notNil ifTrue:[
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iconWidth := icon width + gap
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] ifFalse:[
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iconWidth := 0
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].
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^ iconWidth + (string widthOn:aGC)
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172
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"Created: 12.5.1996 / 20:10:06 / cg"
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306
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"Modified: 27.2.1997 / 14:53:58 / cg"
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172
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! !
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345 |
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346 |
!LabelAndIcon class methodsFor:'documentation'!
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347 |
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348 |
version
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306
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^ '$Header: /cvs/stx/stx/libwidg2/LabelAndIcon.st,v 1.11 1997-02-27 14:06:19 cg Exp $'
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! !
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