author | Claus Gittinger <cg@exept.de> |
Sat, 07 Oct 2000 13:57:36 +0200 | |
changeset 2295 | afa4d722c92b |
parent 2294 | 3429f3798941 |
child 2359 | f3d26728a7b1 |
permissions | -rw-r--r-- |
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" |
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COPYRIGHT (c) 1990 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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"{ Package: 'stx:libwidg' }" |
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EnterBox subclass:#ListSelectionBox |
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instanceVariableNames:'selectionList selectionChangeCallback' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'Views-DialogBoxes' |
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! |
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!ListSelectionBox class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1990 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 |
|
31 |
inclusion of the above copyright notice. This software may not |
|
32 |
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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this class implements boxes for selection from a list. It offers |
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both an ok- and abort-buttons. The ok-button, if pressed will |
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evaluate the okAction (see EnterBox>>action). |
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see examples for typical uses. |
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Notice, for file selections there is a specialized FileSelectionBox, |
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which supports matchPatterns, changing directory etc. |
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[author:] |
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Claus Gittinger |
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" |
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! |
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||
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examples |
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" |
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simple: |
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[exBegin] |
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|box| |
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box := ListSelectionBox new. |
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box title:'select something:'. |
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box list:#('foo' 'bar' 'baz'). |
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box okAction:[:sel | Transcript showCR:'the selection was:' , sel]. |
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box showAtPointer |
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[exEnd] |
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with a default: |
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[exBegin] |
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|box| |
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box := ListSelectionBox new. |
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box title:'select something:'. |
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box list:#('foo' 'bar' 'baz'). |
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box okAction:[:sel | Transcript showCR:'the selection was:' , sel]. |
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box initialText:'foo'. |
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box showAtPointer |
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[exEnd] |
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opening the box modeless (a stand-by box): |
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(in this case, the default ok- and abortActions do not hide the box; |
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therefore, we have to set those explicitely) |
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[exBegin] |
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|box| |
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box := ListSelectionBox new. |
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box title:'select something:'. |
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box list:#('foo' 'bar' 'baz'). |
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box abortText:'close'. |
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box okText:'apply'. |
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box okAction:[:sel | Transcript showCR:'the selection was:' , sel]. |
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box abortAction:[:dummy | box hide]. |
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box openModeless |
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[exEnd] |
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showing fileNames: |
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[exBegin] |
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|box| |
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box := ListSelectionBox new. |
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box title:'select something:'. |
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box list:('.' asFilename directoryContents). |
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box okAction:[:sel | Transcript showCR:'the selection was:' , sel]. |
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box showAtPointer |
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[exEnd] |
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" |
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! ! |
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!ListSelectionBox class methodsFor:'instance creation'! |
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title:titleString okText:okText abortText:abortText list:aList action:aBlock |
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"create and return a new listSelectionBox with list already defined" |
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|newBox| |
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newBox := super title:titleString okText:okText abortText:abortText |
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action:aBlock. |
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^ newBox list:aList |
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! ! |
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!ListSelectionBox class methodsFor:'defaults'! |
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defaultExtent |
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"return the default extent of my instances. |
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The value returned here is usually ignored, and |
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the value from preferredExtent taken instead." |
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^ (Screen current pixelPerMillimeter * (80 @ 100)) rounded |
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"Modified: 5.7.1996 / 13:53:46 / cg" |
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! |
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listViewType |
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"return the type of listView |
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- for easier redefinition in subclasses" |
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^ SelectionInListView |
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! ! |
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!ListSelectionBox methodsFor:'accessing'! |
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contents |
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"return my contents" |
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enterField isNil ifTrue:[ |
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^ selectionList selectionValue |
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]. |
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^ super contents |
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"Created: 26.2.1996 / 20:05:47 / cg" |
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! |
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initialText:someString |
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"in addition to showing the initial text, also select it in the list" |
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super initialText:someString. |
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selectionList setSelectElement:someString. |
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"Modified: 26.5.1996 / 15:03:37 / cg" |
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! |
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list:aList |
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"set the list to be displayed in selection list" |
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selectionList list:aList |
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! |
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selectionChangeCallback:aBlock |
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"allows special actions to be hooked in, whe nthe selection changes" |
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selectionChangeCallback := aBlock. |
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! |
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selectionIndex |
177 |
^ selectionList selection |
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179 |
"Created: 14.10.1996 / 16:28:50 / cg" |
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! ! |
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!ListSelectionBox methodsFor:'accessing-components'! |
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184 |
listView |
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"return the listView component" |
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^ selectionList |
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"Created: 26.10.1995 / 17:08:32 / cg" |
190 |
! ! |
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!ListSelectionBox methodsFor:'accessing-look'! |
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194 |
noEnterField |
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"suppress the enterField - now only existing items are selectable; |
196 |
the default is to present an enterField." |
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enterField destroy. |
199 |
enterField := nil |
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201 |
"Created: 26.10.1995 / 17:12:38 / cg" |
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"Modified: 12.5.1996 / 21:49:14 / cg" |
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! ! |
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!ListSelectionBox methodsFor:'initialization'! |
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initialize |
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|space2 halfSpace v vbw| |
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super initialize. |
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label := resources string:'Select or enter'. |
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"need more space than an enterBox" |
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216 |
"self height:(height + (font height * 5)). " |
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space2 := 2 * ViewSpacing. |
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halfSpace := ViewSpacing // 2. |
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v := HVScrollableView for:(self class listViewType) in:self. |
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v horizontalScrollable:true; horizontalMini:true; autoHideHorizontalScrollBar:true. |
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"/ old: |
225 |
"/ v origin:[0.0 |
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"/ @ |
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"/ (enterField origin y + enterField height + ViewSpacing)] |
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"/ extent:[1.0 |
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"/ @ |
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"/ (height |
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"/ - ViewSpacing - labelField heightIncludingBorder |
232 |
"/ - ViewSpacing - enterField heightIncludingBorder |
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"/ - buttonPanel heightIncludingBorder - ViewSpacing |
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"/ - space2) |
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"/ ]. |
236 |
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237 |
"/ new: |
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v origin:[enterField notNil ifTrue:[ |
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0.0 @ (enterField origin y + enterField height + ViewSpacing) |
240 |
] ifFalse:[ |
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0.0 @ (labelField origin y + labelField height + ViewSpacing) |
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] |
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] |
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corner:(1.0 @ 1.0). |
245 |
v bottomInset:(buttonPanel preferredExtent y + ViewSpacing). |
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246 |
||
139 | 247 |
vbw := v borderWidth. |
248 |
v leftInset:halfSpace+vbw; |
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rightInset:halfSpace+vbw. |
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selectionList := v scrolledView. |
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self makeTabable:selectionList. |
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|
254 |
"self updateList." |
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255 |
||
724 | 256 |
"I am interested in what is done in the selectionList |
132 | 257 |
(could also create a SelectionInList-model and catch its changes ...)" |
258 |
selectionList action:[:lineNr | self selectionChanged]. |
|
259 |
selectionList doubleClickAction:[:lineNr | self doubleClick]. |
|
260 |
||
130 | 261 |
enterField removeDependent:self. "dont want preferredExtent-changes" |
128 | 262 |
|
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263 |
enterField immediateAccept:true. |
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264 |
enterField acceptAction: |
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265 |
[:text | |string index| |
2282 | 266 |
enterField notNil ifTrue:[ |
267 |
string := enterField contents. |
|
268 |
"/ find the first list-entry, starting with entered text |
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2294 | 269 |
index := (selectionList list ? #()) findFirst:[:line | line string startsWith:string string]. |
2282 | 270 |
index ~~ 0 ifTrue:[ |
271 |
selectionList makeLineVisible:index. |
|
272 |
]. |
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]. |
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]. |
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275 |
|
38 | 276 |
" |
277 |
mhm: the lists keyboard functions are disabled, |
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278 |
and input passed to the enterfield (except cursor keys) |
38 | 279 |
" |
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|
280 |
selectionList delegate:( |
412 | 281 |
KeyboardForwarder |
282 |
toView:enterField |
|
283 |
condition:#noFocus |
|
284 |
filter:[:key | (key ~~ #CursorUp) and:[key ~~ #CursorDown]] |
|
285 |
) |
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166 | 286 |
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"Modified: 31.5.1996 / 22:02:33 / cg" |
0 | 288 |
! |
289 |
||
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postRealize |
291 |
"update the list now. |
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638 | 292 |
This was not done in #initialize to allow settings to be changed before, |
293 |
in case list-updating is a slow operation - such as reading a directory" |
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294 |
||
1273 | 295 |
super postRealize. |
0 | 296 |
self updateList. |
638 | 297 |
|
298 |
"Modified: 12.5.1996 / 21:50:50 / cg" |
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1273 | 299 |
"Created: 24.7.1997 / 18:22:19 / cg" |
77 | 300 |
! |
301 |
||
197 | 302 |
updateList |
638 | 303 |
"setup contents of list; |
304 |
nothing done here but typically redefined in subclasses." |
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197 | 305 |
|
306 |
^ self |
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638 | 307 |
|
308 |
"Modified: 12.5.1996 / 21:51:10 / cg" |
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0 | 309 |
! ! |
310 |
||
59 | 311 |
!ListSelectionBox methodsFor:'queries'! |
0 | 312 |
|
130 | 313 |
preferredExtent |
314 |
"return my preferred extent - thats the minimum size |
|
125 | 315 |
I like to have, to make everything visible" |
0 | 316 |
|
371 | 317 |
|wWanted hWanted eH mm| |
318 |
||
799 | 319 |
"/ If I have an explicit preferredExtent .. |
320 |
||
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care for preSet preferredExtent
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preferredExtent notNil ifTrue:[ |
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322 |
^ preferredExtent |
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323 |
]. |
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324 |
|
371 | 325 |
mm := ViewSpacing. |
125 | 326 |
|
371 | 327 |
wWanted := mm + labelField width + mm. |
0 | 328 |
(wWanted > width) ifFalse:[ |
371 | 329 |
wWanted := width |
0 | 330 |
]. |
125 | 331 |
|
166 | 332 |
enterField notNil ifTrue:[ |
371 | 333 |
eH := enterField height + mm |
166 | 334 |
] ifFalse:[ |
371 | 335 |
eH := 0 |
166 | 336 |
]. |
371 | 337 |
hWanted := mm + labelField height + |
338 |
eH + |
|
339 |
mm + selectionList height + |
|
340 |
mm + buttonPanel preferredExtent y + |
|
341 |
mm - (mm * 2). |
|
0 | 342 |
|
343 |
(hWanted < height) ifTrue:[ |
|
371 | 344 |
hWanted := height |
0 | 345 |
]. |
59 | 346 |
^ (wWanted @ hWanted) |
166 | 347 |
|
799 | 348 |
"Modified: 19.7.1996 / 20:44:52 / cg" |
0 | 349 |
! ! |
350 |
||
132 | 351 |
!ListSelectionBox methodsFor:'user actions'! |
352 |
||
197 | 353 |
doubleClick |
354 |
"doubleClick on an entry is select & ok" |
|
355 |
||
402
ed4a635f43c6
oops - fixed access to non existing enterField (if noEnterField)
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diff
changeset
|
356 |
enterField notNil ifTrue:[ |
ed4a635f43c6
oops - fixed access to non existing enterField (if noEnterField)
Claus Gittinger <cg@exept.de>
parents:
371
diff
changeset
|
357 |
enterField contents:(selectionList selectionValue). |
ed4a635f43c6
oops - fixed access to non existing enterField (if noEnterField)
Claus Gittinger <cg@exept.de>
parents:
371
diff
changeset
|
358 |
]. |
197 | 359 |
self okPressed |
402
ed4a635f43c6
oops - fixed access to non existing enterField (if noEnterField)
Claus Gittinger <cg@exept.de>
parents:
371
diff
changeset
|
360 |
|
ed4a635f43c6
oops - fixed access to non existing enterField (if noEnterField)
Claus Gittinger <cg@exept.de>
parents:
371
diff
changeset
|
361 |
"Modified: 26.2.1996 / 20:05:45 / cg" |
197 | 362 |
! |
363 |
||
132 | 364 |
selectionChanged |
365 |
"selections in list get forwarded to enterfield" |
|
366 |
||
166 | 367 |
enterField notNil ifTrue:[ |
2261
260a8cd9905d
added a selectionChanged callback
Claus Gittinger <cg@exept.de>
parents:
1281
diff
changeset
|
368 |
enterField contents:(selectionList selectionValue) |
260a8cd9905d
added a selectionChanged callback
Claus Gittinger <cg@exept.de>
parents:
1281
diff
changeset
|
369 |
]. |
260a8cd9905d
added a selectionChanged callback
Claus Gittinger <cg@exept.de>
parents:
1281
diff
changeset
|
370 |
selectionChangeCallback notNil ifTrue:[ |
260a8cd9905d
added a selectionChanged callback
Claus Gittinger <cg@exept.de>
parents:
1281
diff
changeset
|
371 |
selectionChangeCallback value:selectionList selection |
260a8cd9905d
added a selectionChanged callback
Claus Gittinger <cg@exept.de>
parents:
1281
diff
changeset
|
372 |
]. |
166 | 373 |
|
374 |
"Modified: 26.10.1995 / 17:20:06 / cg" |
|
375 |
! ! |
|
376 |
||
1273 | 377 |
!ListSelectionBox class methodsFor:'documentation'! |
243 | 378 |
|
379 |
version |
|
2295 | 380 |
^ '$Header: /cvs/stx/stx/libwidg/ListSelectionBox.st,v 1.44 2000-10-07 11:57:36 cg Exp $' |
243 | 381 |
! ! |