author | Claus Gittinger <cg@exept.de> |
Thu, 26 Feb 2004 13:19:47 +0100 | |
changeset 2659 | 3af857eb52fb |
parent 2645 | b3d3e7c3ee40 |
child 2670 | 27dacfff1d6d |
permissions | -rw-r--r-- |
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" |
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COPYRIGHT (c) 1999 by 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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"{ Package: 'stx:libwidg2' }" |
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View subclass:#ListModelView |
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instanceVariableNames:'list listHolder textStartLeft viewOrigin enabled fgColor bgColor |
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lineSpacing widthOfContents computeWidthInRange startOfLinesY |
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autoScroll autoScrollBlock scrollWhenUpdating hasConstantHeight |
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constantHeight previousExtent renderer' |
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classVariableNames:'DefaultForegroundColor DefaultBackgroundColor DefaultShadowColor |
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DefaultLightColor StopRedrawSignal' |
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poolDictionaries:'' |
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category:'Views-Lists' |
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! |
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Object subclass:#Renderer |
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instanceVariableNames:'view' |
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classVariableNames:'' |
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poolDictionaries:'' |
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privateIn:ListModelView |
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! |
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!ListModelView class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1999 by 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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! |
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documentation |
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" |
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This widget is a new improved revision of the good-old ListView. |
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In contrast to ListView, this one reacts on changes of the |
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underlying model and performs optimized redraws. |
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It requires a List (or alike) as model. |
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This class can only passively display collections of elements. |
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The class doesn't keep its own list, it works directly on |
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the model( List or HierarchicalList ). |
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Each list item is obligated to provide 3 services: |
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- heightOn:aGC |
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- widthOn:aGC |
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- displayOn:aGC x:x y:y |
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[Instance variables:] |
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list <List-Model> List or HierarchicalList ... |
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listHolder <Model> Model, which keeps a List |
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textStartLeft <Number> left inset of text |
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viewOrigin <Point> the current origin |
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enabled <Boolean> widget is enabled/disabeled |
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fgColor <Color> color to draw characters |
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bgColor <Color> the background |
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lineSpacing <Number> pixels between lines |
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widthOfContents <Number> cached width of widest line |
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computeWidthInRange <Point> used for recompute width of contents |
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startOfLinesY <Collection> keeps all the absolute Y-start positions |
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for each line in the list. The first |
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entry into the list is the top Y inset. |
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supportsDisplayInRange <Boolean> set to true if the list elements |
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supports the service: |
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#displayOn:x:y:h: |
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hasConstantHeight <Boolean> true, than each line has the same height |
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constantHeight <SmallInteger> hasConstantHeight is turned on, this |
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is the used line height |
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[author:] |
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Claus Atzkern |
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[see also:] |
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SelectionInListModelView |
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HierarchicalListView |
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List |
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HierarchicalList |
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" |
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! |
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examples |
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" |
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[exBegin] |
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|top list view up index| |
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list := List new. |
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top := StandardSystemView new; extent:300@300. |
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view := ScrollableView for:ListModelView miniScroller:true |
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origin:0.0@0.0 corner:1.0@1.0 in:top. |
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view list:list. |
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top openAndWait. |
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up := true. |
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[top shown] whileTrue:[ |
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Delay waitForSeconds:0.2. |
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up ifTrue:[ |
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index := 1 + (list size). |
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list add:('element: ', index printString). |
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up := index < 20 |
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] ifFalse:[ |
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list removeIndex:1. |
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up := list isEmpty. |
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] |
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]. |
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[exEnd] |
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" |
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! ! |
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!ListModelView class methodsFor:'initialization'! |
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initialize |
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"setup the signals |
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" |
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StopRedrawSignal := Notification newSignalMayProceed:true. |
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StopRedrawSignal nameClass:self message:#stopRedrawSignal. |
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! ! |
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!ListModelView class methodsFor:'Signal constants'! |
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stopRedrawSignal |
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^ StopRedrawSignal |
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! ! |
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!ListModelView class methodsFor:'defaults'! |
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defaultRenderer |
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^ Renderer |
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! |
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updateStyleCache |
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"extract values from the styleSheet and cache them in class variables" |
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<resource: #style ( |
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#'text.backgroundColor' #'text.foregroundColor' |
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#'selection.shadowColor' #'selection.lightColor' |
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#'text.font' |
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)> |
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DefaultForegroundColor := StyleSheet colorAt:'text.foregroundColor' default:Black. |
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DefaultBackgroundColor := StyleSheet colorAt:'text.backgroundColor'. |
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DefaultShadowColor := StyleSheet colorAt:'selection.shadowColor'. |
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DefaultLightColor := StyleSheet colorAt:'selection.lightColor'. |
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DefaultFont := StyleSheet fontAt:'text.font'. |
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" |
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self updateStyleCache |
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" |
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! ! |
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!ListModelView methodsFor:'accessing'! |
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list |
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"get the list of items |
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" |
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^ list |
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! |
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list:aList |
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"set the list of items |
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" |
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|negatedOrg| |
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renderer listWillChange. |
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list ~~ aList ifTrue:[ |
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list removeDependent:self. |
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list := aList. |
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list isNil ifTrue:[list := self newDefaultList ]. |
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list addDependent:self |
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]. |
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preferredExtent := nil. |
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widthOfContents := nil. |
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self realized ifFalse:[^ self]. |
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self recomputeHeightOfContents. |
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scrollWhenUpdating == #beginOfText ifTrue:[ |
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viewOrigin = (0@0) ifFalse:[ |
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self originWillChange. |
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negatedOrg := viewOrigin negated. |
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viewOrigin := (0@0). |
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self originChanged:negatedOrg. |
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]. |
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] ifFalse:[ |
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scrollWhenUpdating == #endOfText ifTrue:[ |
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self scrollTo:(0 @ self heightOfContents - self innerHeight) redraw:false |
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] |
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]. |
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self invalidate. |
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self contentsChanged |
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! |
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renderer |
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"returns the used renderer |
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" |
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^ renderer |
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! |
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renderer:aRenderer |
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"change the used renderer |
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" |
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aRenderer isNil ifTrue:[^ self]. |
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renderer == aRenderer ifTrue:[^ self]. |
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renderer notNil ifTrue:[renderer release]. |
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renderer := aRenderer. |
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renderer isBehavior ifTrue:[ |
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renderer := renderer basicNew initialize. |
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]. |
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renderer forView:self. |
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! ! |
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||
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!ListModelView methodsFor:'accessing-behavior'! |
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autoScroll |
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"returns true if auto scrolling is enabled |
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" |
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^ autoScroll |
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! |
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autoScroll:aBool |
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"returns true if auto scrolling is enabled |
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" |
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autoScroll := aBool ? true. |
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! |
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enabled |
262 |
"returns the enabled state |
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" |
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^ enabled |
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! |
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enabled:aBoolean |
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"set the enabled state |
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" |
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enabled := aBoolean |
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! |
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hasConstantHeight |
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"user configured; true if each line has the same lineHeight |
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optimize for scroller update |
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" |
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^ hasConstantHeight |
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! |
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hasConstantHeight:aBool |
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"user configured; true if each line has the same lineHeight |
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optimize for scroller update |
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" |
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aBool == hasConstantHeight ifTrue:[ |
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^ self |
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]. |
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constantHeight := nil. |
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hasConstantHeight := aBool. |
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self lostSynchronisation. |
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! |
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scrollWhenUpdating:aSymbolOrNil |
298 |
"define how to scroll, when I get a new text |
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(via the model or the #contents/#list) |
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Allowed arguments are: |
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#keep / nil -> no change |
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#endOfText -> scroll to the end |
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#beginOfText -> scroll to the top |
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The default is #beginOfText. |
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This may be useful for fields which get new values assigned from |
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the program (i.e. not from the user) |
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" |
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scrollWhenUpdating := aSymbolOrNil |
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! ! |
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!ListModelView methodsFor:'accessing-items'! |
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at:anIndex |
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"return the list element at an index |
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" |
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^ list at:anIndex |
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! |
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at:anIndex ifAbsent:exceptionBlock |
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"return the list element at an index if valid. |
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If the index is invalid, return the result of evaluating |
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the exceptionblock. |
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" |
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^ list at:anIndex ifAbsent:exceptionBlock |
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! |
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findLast:aOneArgBlock |
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"find the last list entry, for which evaluation of the argument, aOneArgBlock |
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returns true; return its index or 0 if none detected. |
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" |
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^ list findLast:aOneArgBlock |
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! |
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identityIndexOf:anElement |
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"returns the index of an element or nil |
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" |
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^ list identityIndexOf:anElement |
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! |
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last |
344 |
"returns the last list entry |
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" |
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^ list last |
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! ! |
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||
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!ListModelView methodsFor:'accessing-look'! |
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backgroundColor |
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"get the background color |
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" |
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^ bgColor |
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||
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||
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! |
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font:aFont |
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"set a new font |
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" |
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|oldWidth oldHeight| |
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(aFont isNil or:[aFont = font]) ifFalse:[ |
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oldWidth := font width. |
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oldHeight := font height. |
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super font:aFont. |
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(font widthOn:device) ~~ oldWidth ifTrue:[ "/ force a recomputation |
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preferredExtent := nil. |
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widthOfContents := nil. |
3af857eb52fb
invalidate checks itself for shown-flag
Claus Gittinger <cg@exept.de>
parents:
2645
diff
changeset
|
373 |
]. |
3af857eb52fb
invalidate checks itself for shown-flag
Claus Gittinger <cg@exept.de>
parents:
2645
diff
changeset
|
374 |
oldHeight ~~ (font heightOn:device) ifTrue:[ |
3af857eb52fb
invalidate checks itself for shown-flag
Claus Gittinger <cg@exept.de>
parents:
2645
diff
changeset
|
375 |
self recomputeHeightOfContents. |
3af857eb52fb
invalidate checks itself for shown-flag
Claus Gittinger <cg@exept.de>
parents:
2645
diff
changeset
|
376 |
]. |
3af857eb52fb
invalidate checks itself for shown-flag
Claus Gittinger <cg@exept.de>
parents:
2645
diff
changeset
|
377 |
self invalidate |
1390 | 378 |
]. |
379 |
! |
|
380 |
||
381 |
foregroundColor |
|
382 |
"get the foreground color |
|
383 |
" |
|
384 |
^ fgColor |
|
385 |
||
386 |
! |
|
387 |
||
388 |
foregroundColor:aColor |
|
389 |
"set the foreground color |
|
390 |
" |
|
391 |
(aColor notNil and:[fgColor ~~ aColor]) ifTrue:[ |
|
2265 | 392 |
self realized ifTrue:[ |
393 |
fgColor := aColor onDevice:device. |
|
394 |
self invalidate |
|
395 |
] ifFalse:[ |
|
396 |
fgColor := aColor |
|
397 |
] |
|
1390 | 398 |
] |
1945 | 399 |
! |
400 |
||
401 |
lineSpacing |
|
402 |
"get the lineSpacing - thats an additional number of pixels, |
|
403 |
by which lines are vertically separated. |
|
404 |
" |
|
405 |
^ lineSpacing |
|
406 |
! |
|
407 |
||
408 |
lineSpacing:aNumber |
|
409 |
"set the lineSpacing - thats an additional number of pixels, |
|
410 |
by which lines are vertically separated. |
|
411 |
" |
|
412 |
lineSpacing ~= aNumber ifTrue:[ |
|
2659
3af857eb52fb
invalidate checks itself for shown-flag
Claus Gittinger <cg@exept.de>
parents:
2645
diff
changeset
|
413 |
lineSpacing := aNumber. |
1945 | 414 |
|
2659
3af857eb52fb
invalidate checks itself for shown-flag
Claus Gittinger <cg@exept.de>
parents:
2645
diff
changeset
|
415 |
self recomputeHeightOfContents. |
3af857eb52fb
invalidate checks itself for shown-flag
Claus Gittinger <cg@exept.de>
parents:
2645
diff
changeset
|
416 |
self invalidate |
1945 | 417 |
] |
2605
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
418 |
! |
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
419 |
|
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
420 |
viewBackground:aColor |
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
421 |
"set the background color |
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
422 |
" |
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
423 |
(aColor notNil and:[bgColor ~~ aColor]) ifTrue:[ |
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
424 |
bgColor := aColor. |
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
425 |
super viewBackground:bgColor. |
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
426 |
|
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
427 |
self realized ifTrue:[ |
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
428 |
bgColor := bgColor onDevice:device. |
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
429 |
self invalidate |
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
430 |
]. |
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
431 |
]. |
1390 | 432 |
! ! |
433 |
||
1818 | 434 |
!ListModelView methodsFor:'accessing-mvc'! |
1390 | 435 |
|
436 |
listHolder |
|
437 |
"returns the listHolder or nil |
|
438 |
" |
|
439 |
^ listHolder |
|
440 |
! |
|
441 |
||
442 |
listHolder:aListHolder |
|
443 |
"set a new listHolder |
|
444 |
" |
|
445 |
listHolder removeDependent:self. |
|
446 |
||
447 |
(listHolder := aListHolder) notNil ifTrue:[ |
|
2265 | 448 |
listHolder addDependent:self. |
1390 | 449 |
]. |
450 |
self list:(listHolder value). |
|
451 |
! ! |
|
452 |
||
453 |
!ListModelView methodsFor:'change & update'! |
|
454 |
||
455 |
lineChangedAt:aLnNr with:arg |
|
2548 | 456 |
"line changed at position; check whether line height changed" |
457 |
||
458 |
|cache |
|
1390 | 459 |
oldHeight "{ Class:SmallInteger }" |
2548 | 460 |
dltHeight "{ Class:SmallInteger }" | |
461 |
||
462 |
(arg == #icon or:[arg == #hierarchy]) ifTrue:[ |
|
2385 | 463 |
^ self |
1390 | 464 |
]. |
2264 | 465 |
hasConstantHeight ifTrue:[ |
2385 | 466 |
self invalidateLineAt:aLnNr. |
467 |
^ self |
|
2264 | 468 |
]. |
469 |
||
1390 | 470 |
oldHeight := (self yVisibleOfLine:(aLnNr + 1)) - (self yVisibleOfLine:aLnNr). |
471 |
dltHeight := (self heightOfLineAt:aLnNr) - oldHeight. |
|
472 |
||
473 |
dltHeight == 0 ifTrue:[ |
|
2385 | 474 |
self invalidateLineAt:aLnNr. |
475 |
^ self |
|
1390 | 476 |
]. |
2595
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
477 |
cache := self startOfLinesY. |
1390 | 478 |
|
2548 | 479 |
aLnNr + 1 to:cache size do:[:i| |
480 |
cache at:i put:((cache at:i) + dltHeight) |
|
1390 | 481 |
]. |
482 |
self invalidate. |
|
483 |
! |
|
484 |
||
485 |
listChangedInsert:start nItems:nLines |
|
486 |
"list changed; items are added |
|
487 |
" |
|
2385 | 488 |
|newLines |
1390 | 489 |
run "{ Class: SmallInteger }" |
1457 | 490 |
newSz "{ Class: SmallInteger }" |
1390 | 491 |
cpyHg "{ Class: SmallInteger }" |
492 |
absY0 "{ Class: SmallInteger }" |
|
493 |
absY1 "{ Class: SmallInteger }" |
|
494 |
visY0 "{ Class: SmallInteger }" |
|
495 |
visY1 "{ Class: SmallInteger }" |
|
496 |
orgY "{ Class: SmallInteger }" |
|
497 |
dltY "{ Class: SmallInteger }" |
|
498 |
maxHg "{ Class: SmallInteger }" |
|
499 |
| |
|
500 |
||
501 |
nLines == 0 ifTrue:[^ self ]. |
|
502 |
self listSizeChanged:start nLines:nLines. |
|
2569 | 503 |
shown ifFalse:[^ self]. |
1390 | 504 |
|
1457 | 505 |
newSz := startOfLinesY size + nLines. |
506 |
||
2408 | 507 |
(newSz - 1) ~~ self size ifTrue:[ |
2385 | 508 |
"/ |
509 |
"/ no longer synchrounous |
|
510 |
"/ |
|
511 |
^ self lostSynchronisation |
|
1451 | 512 |
]. |
2385 | 513 |
newLines := startOfLinesY copy. |
514 |
newLines addAll:(Array new:nLines) beforeIndex:start + 1. |
|
515 |
absY0 := newLines at:start. |
|
1390 | 516 |
absY1 := absY0. |
517 |
run := start. |
|
518 |
||
519 |
nLines timesRepeat:[ |
|
2385 | 520 |
absY1 := absY1 + (self heightOfLineAt:run). |
521 |
run := run + 1. |
|
522 |
newLines at:run put:absY1. |
|
1390 | 523 |
]. |
524 |
dltY := absY1 - absY0. |
|
1457 | 525 |
|
526 |
run + 1 to:newSz do:[:i||v| |
|
2385 | 527 |
newLines at:i put:((newLines at:i) + dltY) |
1390 | 528 |
]. |
2385 | 529 |
startOfLinesY := newLines. |
1390 | 530 |
|
531 |
orgY := viewOrigin y. |
|
532 |
absY1 := absY0 + dltY. |
|
533 |
visY0 := absY0 - orgY. |
|
534 |
visY1 := absY1 - orgY. |
|
535 |
maxHg := height - margin. |
|
536 |
||
537 |
absY0 < orgY ifTrue:[ |
|
2385 | 538 |
self originWillChange. |
539 |
viewOrigin y:(dltY + orgY). |
|
540 |
self originChanged:(0 @ dltY). |
|
1390 | 541 |
]. |
1457 | 542 |
|
1390 | 543 |
(visY0 >= maxHg or:[visY1 <= margin]) ifTrue:[ |
2385 | 544 |
^ self contentsChanged |
1390 | 545 |
]. |
546 |
visY0 := visY0 max:margin. |
|
547 |
visY1 := visY1 min:maxHg. |
|
548 |
||
1773
9dba0f0dda0e
invalidate uptoend not all if a damage exists (insert/remove)
ca
parents:
1753
diff
changeset
|
549 |
self hasDamage ifTrue:[ |
2385 | 550 |
self invalidate:(Rectangle left:0 |
551 |
top:visY0 |
|
552 |
width:width |
|
553 |
height:height - visY0). |
|
1773
9dba0f0dda0e
invalidate uptoend not all if a damage exists (insert/remove)
ca
parents:
1753
diff
changeset
|
554 |
|
2385 | 555 |
^ self contentsChanged. |
1773
9dba0f0dda0e
invalidate uptoend not all if a damage exists (insert/remove)
ca
parents:
1753
diff
changeset
|
556 |
]. |
9dba0f0dda0e
invalidate uptoend not all if a damage exists (insert/remove)
ca
parents:
1753
diff
changeset
|
557 |
|
2408 | 558 |
(start == self size or:[(cpyHg := maxHg - visY1) < 20]) ifTrue:[ |
2385 | 559 |
visY1 := maxHg |
1390 | 560 |
] ifFalse:[ |
2385 | 561 |
self catchExpose. |
1390 | 562 |
|
2385 | 563 |
self copyFrom:self x:0 y:visY0 |
564 |
toX:0 y:visY1 |
|
565 |
width:width height:cpyHg async:true. |
|
1390 | 566 |
|
2385 | 567 |
self waitForExpose |
1390 | 568 |
]. |
569 |
||
1457 | 570 |
self invalidateX:margin |
2385 | 571 |
y:visY0 |
572 |
width:width - margin - margin |
|
573 |
height:(visY1 - visY0). |
|
1457 | 574 |
|
1390 | 575 |
self contentsChanged. |
576 |
! |
|
577 |
||
1446
fb46beba2d0c
startOfLines can have nil at end; lookup the first not nil
Claus Gittinger <cg@exept.de>
parents:
1444
diff
changeset
|
578 |
listChangedRemove:aStart toIndex:aStop |
1390 | 579 |
"list changed; items are removed |
580 |
" |
|
2385 | 581 |
|noRedraw newLines |
1390 | 582 |
size "{ Class: SmallInteger }" |
583 |
absY0 "{ Class: SmallInteger }" |
|
584 |
absY1 "{ Class: SmallInteger }" |
|
585 |
visY0 "{ Class: SmallInteger }" |
|
586 |
visY1 "{ Class: SmallInteger }" |
|
587 |
orgY "{ Class: SmallInteger }" |
|
588 |
orgX "{ Class: SmallInteger }" |
|
589 |
dltY "{ Class: SmallInteger }" |
|
590 |
cpyHg "{ Class: SmallInteger }" |
|
591 |
maxHg "{ Class: SmallInteger }" |
|
1444
0b7cd00e2537
check range before delete lines
Claus Gittinger <cg@exept.de>
parents:
1443
diff
changeset
|
592 |
stop "{ Class: SmallInteger }" |
1446
fb46beba2d0c
startOfLines can have nil at end; lookup the first not nil
Claus Gittinger <cg@exept.de>
parents:
1444
diff
changeset
|
593 |
start "{ Class: SmallInteger }" |
1457 | 594 |
newSz "{ Class: SmallInteger }" |
1390 | 595 |
| |
1446
fb46beba2d0c
startOfLines can have nil at end; lookup the first not nil
Claus Gittinger <cg@exept.de>
parents:
1444
diff
changeset
|
596 |
stop := aStop. |
fb46beba2d0c
startOfLines can have nil at end; lookup the first not nil
Claus Gittinger <cg@exept.de>
parents:
1444
diff
changeset
|
597 |
start := aStart. |
1390 | 598 |
|
1446
fb46beba2d0c
startOfLines can have nil at end; lookup the first not nil
Claus Gittinger <cg@exept.de>
parents:
1444
diff
changeset
|
599 |
(size := stop - start + 1) == 0 ifTrue:[ |
2385 | 600 |
^ self |
1390 | 601 |
]. |
1446
fb46beba2d0c
startOfLines can have nil at end; lookup the first not nil
Claus Gittinger <cg@exept.de>
parents:
1444
diff
changeset
|
602 |
|
1390 | 603 |
self listSizeChanged:start nLines:(size negated). |
2569 | 604 |
shown ifFalse:[^ self]. |
1451 | 605 |
|
1457 | 606 |
newSz := startOfLinesY size - size. |
607 |
||
2408 | 608 |
(newSz - 1) ~~ self size ifTrue:[ |
2385 | 609 |
"/ |
610 |
"/ no longer synchrounous |
|
611 |
"/ |
|
612 |
^ self lostSynchronisation |
|
1451 | 613 |
]. |
614 |
||
1390 | 615 |
absY0 := self yAbsoluteOfLine:start. |
1457 | 616 |
absY1 := self yAbsoluteOfLine:stop + 1. |
1390 | 617 |
dltY := absY1 - absY0. |
618 |
||
2385 | 619 |
newLines := startOfLinesY copy. |
620 |
newLines removeFromIndex:(start + 1) toIndex:(stop + 1). |
|
1390 | 621 |
|
1457 | 622 |
(start + 1) to:newSz do:[:i| |
2385 | 623 |
absY0 := newLines at:i. |
624 |
newLines at:i put:(absY0 - dltY). |
|
1390 | 625 |
]. |
2385 | 626 |
startOfLinesY := newLines. |
1390 | 627 |
|
628 |
orgY := viewOrigin y. |
|
629 |
orgX := viewOrigin x. |
|
630 |
||
631 |
absY0 := self yAbsoluteOfLine:start. |
|
632 |
absY1 := absY0 + dltY. |
|
633 |
visY0 := absY0 - orgY. |
|
634 |
visY1 := absY1 - orgY. |
|
635 |
maxHg := height - margin. |
|
636 |
||
2408 | 637 |
(self size == 0 or:[(orgY ~~ 0 and:[self maxViewOriginY == 0])]) ifTrue:[ |
2385 | 638 |
(orgX ~~ 0 or:[orgY ~~ 0]) ifTrue:[ |
639 |
self originWillChange. |
|
640 |
viewOrigin := 0@0. |
|
641 |
self originChanged:((orgX @ orgY) negated). |
|
642 |
]. |
|
643 |
self invalidate. |
|
644 |
^ self contentsChanged |
|
1390 | 645 |
]. |
646 |
||
647 |
visY0 < margin ifTrue:[ |
|
2385 | 648 |
noRedraw := visY1 <= margin. |
649 |
noRedraw ifTrue:[dltY := dltY negated] ifFalse:[dltY := visY0]. |
|
1390 | 650 |
|
2385 | 651 |
self originWillChange. |
652 |
viewOrigin y:(dltY + orgY). |
|
653 |
self originChanged:(0 @ dltY). |
|
1390 | 654 |
] ifFalse:[ |
2385 | 655 |
noRedraw := visY0 >= maxHg |
1390 | 656 |
]. |
1773
9dba0f0dda0e
invalidate uptoend not all if a damage exists (insert/remove)
ca
parents:
1753
diff
changeset
|
657 |
visY0 := visY0 max:margin. |
9dba0f0dda0e
invalidate uptoend not all if a damage exists (insert/remove)
ca
parents:
1753
diff
changeset
|
658 |
|
1457 | 659 |
self hasDamage ifTrue:[ |
2385 | 660 |
self invalidate:(Rectangle left:0 |
661 |
top:visY0 |
|
662 |
width:width |
|
663 |
height:height - visY0). |
|
1773
9dba0f0dda0e
invalidate uptoend not all if a damage exists (insert/remove)
ca
parents:
1753
diff
changeset
|
664 |
|
2385 | 665 |
noRedraw := true |
1457 | 666 |
]. |
1390 | 667 |
|
1457 | 668 |
noRedraw ifFalse:[ |
2385 | 669 |
cpyHg := maxHg - visY1. |
1390 | 670 |
|
2385 | 671 |
cpyHg > 20 ifTrue:[ |
672 |
self catchExpose. |
|
673 |
self copyFrom:self x:0 y:visY1 toX:0 y:visY0 |
|
674 |
width:width height:cpyHg async:true. |
|
675 |
self waitForExpose. |
|
676 |
visY0 := visY0 + cpyHg. |
|
677 |
]. |
|
1390 | 678 |
|
2385 | 679 |
self invalidateX:margin |
680 |
y:visY0 |
|
681 |
width:width - margin - margin |
|
682 |
height:(maxHg - visY0). |
|
1390 | 683 |
]. |
684 |
self contentsChanged. |
|
685 |
! |
|
686 |
||
2302
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
687 |
update:what with:aPara from:chgObj |
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
688 |
"catch and handle any notification raised from the list model |
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
689 |
or list holder |
1390 | 690 |
" |
2595
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
691 |
chgObj ~~ self list ifTrue:[ |
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
692 |
chgObj == self listHolder ifTrue:[ |
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
693 |
self list:(chgObj value). |
2302
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
694 |
] ifFalse:[ |
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
695 |
super update:what with:aPara from:chgObj |
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
696 |
]. |
2644 | 697 |
^ self. |
698 |
]. |
|
699 |
||
700 |
renderer withinUpdateFromListDo:[ |
|
701 |
self updateFromList:what with:aPara. |
|
1995 | 702 |
]. |
2644 | 703 |
! |
704 |
||
705 |
updateFromList:what with:aPara |
|
706 |
"called if the list changed |
|
2595
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
707 |
" |
2644 | 708 |
|arg1 arg2| |
709 |
||
2302
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
710 |
aPara isCollection ifFalse:[ |
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
711 |
what == #at: ifTrue:[self lineChangedAt:aPara with:nil. ^ self]. |
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
712 |
what == #insert: ifTrue:[self listChangedInsert:aPara nItems:1. ^ self]. |
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
713 |
what == #remove: ifTrue:[self listChangedRemove:aPara toIndex:aPara. ^ self]. |
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
714 |
^ self. |
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
715 |
]. |
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
716 |
|
2644 | 717 |
arg1 := aPara at:1. |
718 |
arg2 := aPara at:2. |
|
2302
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
719 |
|
2644 | 720 |
(arg1 == 1 and:[arg2 == self size]) ifTrue:[ |
721 |
self list:(self list). "/ reload list |
|
2302
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
722 |
^ self |
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
723 |
]. |
1390 | 724 |
|
2644 | 725 |
what == #at: ifTrue:[self lineChangedAt:arg1 with:arg2. ^ self]. |
726 |
what == #insertCollection: ifTrue:[self listChangedInsert:arg1 nItems:arg2. ^ self]. |
|
727 |
what == #removeFrom: ifTrue:[self listChangedRemove:arg1 toIndex:arg2. ^ self]. |
|
2302
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
728 |
|
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
729 |
what == #replace: ifTrue:[ |
2644 | 730 |
arg1 to:arg2 do:[:i|self lineChangedAt:i with:nil]. |
2302
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
731 |
^ self |
1995 | 732 |
]. |
1390 | 733 |
! ! |
734 |
||
735 |
!ListModelView methodsFor:'drawing'! |
|
736 |
||
2643 | 737 |
drawElementsFrom:start to:stop x:x y:y w:w |
2304 | 738 |
"draw lines from start to stop. |
739 |
clipping and clearing the background is already done |
|
1399 | 740 |
" |
2304 | 741 |
|item |
742 |
y0 "{ Class:SmallInteger }" |
|
743 |
y1 "{ Class:SmallInteger }" |
|
744 |
x0 "{ Class:SmallInteger }" |
|
745 |
| |
|
746 |
self paint:fgColor on:bgColor. |
|
747 |
||
748 |
x0 := textStartLeft - viewOrigin x. |
|
749 |
y1 := y. |
|
750 |
||
751 |
start to:stop do:[:i| |
|
2408 | 752 |
item := self at:i ifAbsent:self. "/ list changed during draw |
2304 | 753 |
item == self ifTrue:[^ self]. |
754 |
||
755 |
y0 := y1. |
|
756 |
y1 := self yVisibleOfLine:(i + 1). |
|
757 |
||
758 |
item notNil ifTrue:[ |
|
2352 | 759 |
renderer display:item atX:x0 y:y0 lineHeight:(y1 - y0). |
2304 | 760 |
] |
761 |
] |
|
1390 | 762 |
! |
763 |
||
2643 | 764 |
drawFrom:start to:stop x:xLft y:yTop w:aWidth |
765 |
"draw lines from start to stop. Test whether a new clip |
|
766 |
must be setup. |
|
767 |
" |
|
768 |
|maxX w| |
|
769 |
||
770 |
maxX := renderer maxItemWidthOrNil. |
|
2644 | 771 |
w := aWidth. |
2643 | 772 |
|
2644 | 773 |
maxX notNil ifTrue:[ |clip| |
2643 | 774 |
maxX := maxX - viewOrigin x. |
2644 | 775 |
maxX > xLft ifFalse:[^ self.]. |
2643 | 776 |
|
2644 | 777 |
w := maxX - xLft min:aWidth. |
2643 | 778 |
|
779 |
(clip := self clipRect copy) notNil ifTrue:[ |
|
780 |
clip width:w |
|
781 |
] ifFalse:[ |
|
782 |
clip := Rectangle left:xLft top:yTop width:w height:(height - yTop - margin). |
|
783 |
]. |
|
784 |
self clippingRectangle:clip. |
|
785 |
]. |
|
786 |
self drawElementsFrom:start to:stop x:xLft y:yTop w:w. |
|
787 |
! |
|
788 |
||
2304 | 789 |
invalidateLineAt:aLineNr |
790 |
"add a damage to redraw a line specified by its line number to the |
|
791 |
input event queue. |
|
1390 | 792 |
" |
2322 | 793 |
^ self invalidateLineAt:aLineNr fromX:0. |
794 |
! |
|
795 |
||
796 |
invalidateLineAt:aLineNr fromX:x |
|
797 |
"add a damage to redraw a line specified by its line number to the |
|
798 |
input event queue. |
|
799 |
" |
|
1390 | 800 |
|y0 "{ Class:SmallInteger }" |
801 |
y1 "{ Class:SmallInteger }" |
|
802 |
yB "{ Class:SmallInteger }" |
|
2322 | 803 |
x0 "{ Class:SmallInteger }" |
804 |
xR "{ Class:SmallInteger }" |
|
1390 | 805 |
| |
806 |
||
2244
c9a195d28e72
change #redrawLineAt: to #invalidateLineAt: (because is a invalidate)
ca
parents:
2188
diff
changeset
|
807 |
(shown and:[aLineNr notNil and:[aLineNr > 0]]) ifFalse:[ |
2304 | 808 |
^ self |
2244
c9a195d28e72
change #redrawLineAt: to #invalidateLineAt: (because is a invalidate)
ca
parents:
2188
diff
changeset
|
809 |
]. |
1390 | 810 |
|
2322 | 811 |
xR := width - margin. |
812 |
x0 := x max:margin. |
|
813 |
x0 < xR ifFalse:[ ^ self]. |
|
814 |
||
2244
c9a195d28e72
change #redrawLineAt: to #invalidateLineAt: (because is a invalidate)
ca
parents:
2188
diff
changeset
|
815 |
yB := height - margin. |
c9a195d28e72
change #redrawLineAt: to #invalidateLineAt: (because is a invalidate)
ca
parents:
2188
diff
changeset
|
816 |
y0 := (self yVisibleOfLine:aLineNr) max:margin. |
c9a195d28e72
change #redrawLineAt: to #invalidateLineAt: (because is a invalidate)
ca
parents:
2188
diff
changeset
|
817 |
|
c9a195d28e72
change #redrawLineAt: to #invalidateLineAt: (because is a invalidate)
ca
parents:
2188
diff
changeset
|
818 |
y0 < yB ifTrue:[ |
2304 | 819 |
y1 := (self yVisibleOfLine:(aLineNr + 1)) min:yB. |
2244
c9a195d28e72
change #redrawLineAt: to #invalidateLineAt: (because is a invalidate)
ca
parents:
2188
diff
changeset
|
820 |
|
2304 | 821 |
y1 > y0 ifTrue:[ |
2322 | 822 |
self invalidateX:x0 y:y0 width:(xR - x0) height:(y1 - y0) repairNow:false. |
2304 | 823 |
] |
824 |
]. |
|
2244
c9a195d28e72
change #redrawLineAt: to #invalidateLineAt: (because is a invalidate)
ca
parents:
2188
diff
changeset
|
825 |
! |
c9a195d28e72
change #redrawLineAt: to #invalidateLineAt: (because is a invalidate)
ca
parents:
2188
diff
changeset
|
826 |
|
c9a195d28e72
change #redrawLineAt: to #invalidateLineAt: (because is a invalidate)
ca
parents:
2188
diff
changeset
|
827 |
redraw |
c9a195d28e72
change #redrawLineAt: to #invalidateLineAt: (because is a invalidate)
ca
parents:
2188
diff
changeset
|
828 |
"redraw complete view |
c9a195d28e72
change #redrawLineAt: to #invalidateLineAt: (because is a invalidate)
ca
parents:
2188
diff
changeset
|
829 |
" |
c9a195d28e72
change #redrawLineAt: to #invalidateLineAt: (because is a invalidate)
ca
parents:
2188
diff
changeset
|
830 |
self redrawX:0 y:0 width:width height:height. |
c9a195d28e72
change #redrawLineAt: to #invalidateLineAt: (because is a invalidate)
ca
parents:
2188
diff
changeset
|
831 |
|
1390 | 832 |
|
833 |
! |
|
834 |
||
835 |
redrawX:x y:y width:w height:h |
|
836 |
"redraw part of myself immediately, given logical coordinates |
|
837 |
" |
|
2644 | 838 |
|start stop yAbs yStart| |
1390 | 839 |
|
840 |
shown ifFalse:[^ self]. |
|
841 |
||
2599 | 842 |
(self startOfLinesY size == 1 and:[self size > 1]) ifTrue:[ |
2598
b0c2d20f4062
recomputation of the contents height during redraw if not yet happen;
ca
parents:
2595
diff
changeset
|
843 |
"oops, recompute the height of the contents (the first time after creation). |
b0c2d20f4062
recomputation of the contents height during redraw if not yet happen;
ca
parents:
2595
diff
changeset
|
844 |
" |
b0c2d20f4062
recomputation of the contents height during redraw if not yet happen;
ca
parents:
2595
diff
changeset
|
845 |
self recomputeHeightOfContents. |
b0c2d20f4062
recomputation of the contents height during redraw if not yet happen;
ca
parents:
2595
diff
changeset
|
846 |
|
2599 | 847 |
self startOfLinesY size > 1 ifTrue:[ |
2598
b0c2d20f4062
recomputation of the contents height during redraw if not yet happen;
ca
parents:
2595
diff
changeset
|
848 |
"oops, the contents height changed |
b0c2d20f4062
recomputation of the contents height during redraw if not yet happen;
ca
parents:
2595
diff
changeset
|
849 |
" |
b0c2d20f4062
recomputation of the contents height during redraw if not yet happen;
ca
parents:
2595
diff
changeset
|
850 |
self invalidate. |
b0c2d20f4062
recomputation of the contents height during redraw if not yet happen;
ca
parents:
2595
diff
changeset
|
851 |
self contentsChanged. |
b0c2d20f4062
recomputation of the contents height during redraw if not yet happen;
ca
parents:
2595
diff
changeset
|
852 |
^ self |
b0c2d20f4062
recomputation of the contents height during redraw if not yet happen;
ca
parents:
2595
diff
changeset
|
853 |
]. |
b0c2d20f4062
recomputation of the contents height during redraw if not yet happen;
ca
parents:
2595
diff
changeset
|
854 |
]. |
2304 | 855 |
widthOfContents isNil ifTrue:[ |
856 |
self preferredExtent |
|
2188 | 857 |
]. |
2644 | 858 |
yStart := y. |
859 |
start := self yVisibleToLineNr:y. |
|
1390 | 860 |
|
2644 | 861 |
start notNil ifTrue:[ |
862 |
yAbs := y + h. |
|
863 |
stop := self yVisibleToLineNr:yAbs. |
|
2304 | 864 |
|
2644 | 865 |
stop isNil ifTrue:[ |
866 |
stop := self size. |
|
867 |
] ifFalse:[ |y0| |
|
868 |
y0 := self startOfLinesY at:stop ifAbsent:nil. |
|
869 |
y0 isNil ifTrue:[^ self]. "/ oops, lines differ (will be changed) |
|
2304 | 870 |
|
2644 | 871 |
yAbs == y0 ifTrue:[ |
872 |
stop := (stop - 1) max:start |
|
873 |
]. |
|
874 |
]. |
|
2595
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
875 |
|
2644 | 876 |
start > stop ifTrue:[ |
877 |
start := stop := nil. |
|
878 |
] ifFalse:[ |
|
879 |
(renderer validateDrawableItemsFrom:start to:stop) ifFalse:[ |
|
880 |
self invalidate. |
|
881 |
^ self. |
|
882 |
]. |
|
883 |
yStart := self yVisibleOfLine:start. |
|
2304 | 884 |
]. |
885 |
]. |
|
2644 | 886 |
self paint:bgColor. |
887 |
self fillRectangleX:x y:y width:w height:h. |
|
1390 | 888 |
|
2605
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
889 |
StopRedrawSignal handle:[:ex| |
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
890 |
"/ an item changed its dimension during drawing, draw is aborted |
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
891 |
self invalidate |
3690a334fac1
bug fix: when setting #viewBackground: and computation of automatic scroll to x
ca
parents:
2600
diff
changeset
|
892 |
] do:[ |
2644 | 893 |
|
894 |
||
895 |
start notNil ifTrue:[ |
|
896 |
self drawFrom:start to:stop x:x y:yStart w:w. |
|
897 |
]. |
|
898 |
renderer postRedrawX:x y:yStart w:w from:start to:stop. |
|
2304 | 899 |
]. |
1390 | 900 |
! ! |
901 |
||
902 |
!ListModelView methodsFor:'event handling'! |
|
903 |
||
904 |
keyPress:aKey x:x y:y |
|
2482
13acaaf02528
Use SynchronousWindoeSensor if no windowGroup
Stefan Vogel <sv@exept.de>
parents:
2464
diff
changeset
|
905 |
"a key was pressed - handle page-keys here" |
13acaaf02528
Use SynchronousWindoeSensor if no windowGroup
Stefan Vogel <sv@exept.de>
parents:
2464
diff
changeset
|
906 |
|
1390 | 907 |
<resource: #keyboard( #PreviousPage #NextPage #HalfPageUp #HalfPageDown |
2408 | 908 |
#BeginOfText #EndOfText #ScrollUp #ScrollDown |
909 |
)> |
|
1390 | 910 |
|
2482
13acaaf02528
Use SynchronousWindoeSensor if no windowGroup
Stefan Vogel <sv@exept.de>
parents:
2464
diff
changeset
|
911 |
|n| |
1390 | 912 |
|
2408 | 913 |
self size ~~ 0 ifTrue:[ |
914 |
(aKey == #PreviousPage) ifTrue:[^ self pageUp]. |
|
915 |
(aKey == #NextPage) ifTrue:[^ self pageDown]. |
|
916 |
(aKey == #HalfPageUp) ifTrue:[^ self halfPageUp]. |
|
917 |
(aKey == #HalfPageDown) ifTrue:[^ self halfPageDown]. |
|
918 |
(aKey == #BeginOfText) ifTrue:[^ self scrollToTop]. |
|
919 |
(aKey == #EndOfText) ifTrue:[^ self scrollToBottom]. |
|
1390 | 920 |
|
2408 | 921 |
(aKey == #ScrollUp or:[aKey == #ScrollDown]) ifTrue:[ |
2482
13acaaf02528
Use SynchronousWindoeSensor if no windowGroup
Stefan Vogel <sv@exept.de>
parents:
2464
diff
changeset
|
922 |
n := 1 + (self sensor compressKeyPressEventsWithKey:aKey). |
2408 | 923 |
n := n * self verticalScrollStep. |
1390 | 924 |
|
2408 | 925 |
aKey == #ScrollUp ifTrue:[self scrollUp:n] |
926 |
ifFalse:[self scrollDown:n]. |
|
927 |
^ self |
|
928 |
]. |
|
1390 | 929 |
]. |
930 |
super keyPress:aKey x:x y:y |
|
2274
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
931 |
! |
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
932 |
|
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
933 |
sizeChanged:how |
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
934 |
previousExtent := self extent. |
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
935 |
super sizeChanged:how. |
1390 | 936 |
! ! |
937 |
||
1554 | 938 |
!ListModelView methodsFor:'event simulation'! |
939 |
||
940 |
syncronizeEvents |
|
2302
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
941 |
self obsoleteMethodWarning:'no longer supported'. |
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
942 |
^ false |
1554 | 943 |
! |
944 |
||
945 |
syncronizeEvents:aBoolean |
|
2302
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
946 |
self obsoleteMethodWarning:'no longer supported'. |
1554 | 947 |
! ! |
948 |
||
1390 | 949 |
!ListModelView methodsFor:'fetch resources'! |
950 |
||
951 |
colorOnDevice:aColor |
|
952 |
"fetch a device colors |
|
953 |
" |
|
2097 | 954 |
^ aColor notNil ifTrue:[aColor onDevice:device] ifFalse:[nil] |
1390 | 955 |
! |
956 |
||
2488
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
957 |
imageOnMyDevice:anImage |
1390 | 958 |
"associate image to device and clear pixel mask |
959 |
returns the new image. |
|
960 |
" |
|
2488
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
961 |
|deviceImage| |
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
962 |
|
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
963 |
anImage isNil ifTrue:[^ anImage]. |
1390 | 964 |
|
2488
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
965 |
deviceImage := anImage onDevice:device. |
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
966 |
deviceImage isImage ifTrue:[ |
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
967 |
deviceImage clearMaskedPixels. |
1390 | 968 |
]. |
2488
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
969 |
^ deviceImage |
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
970 |
"/ |image| |
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
971 |
"/ |
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
972 |
"/ (image := anImage) notNil ifTrue:[ |
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
973 |
"/ image device ~~ device ifTrue:[ |
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
974 |
"/ image := image copy. |
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
975 |
"/ ]. |
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
976 |
"/ image := image onDevice:device. |
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
977 |
"/ image := image clearMaskedPixels. |
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
978 |
"/ ]. |
74c81c1e30d7
imageOnDevice -> imageOnMyDevice
Claus Gittinger <cg@exept.de>
parents:
2482
diff
changeset
|
979 |
"/ ^ image |
1390 | 980 |
! ! |
981 |
||
1417 | 982 |
!ListModelView methodsFor:'focus handling'! |
983 |
||
984 |
wantsFocusWithButtonPress |
|
985 |
"catch the keyboard focus on button click |
|
986 |
" |
|
987 |
^ true |
|
988 |
||
989 |
||
990 |
! |
|
991 |
||
992 |
wantsFocusWithPointerEnter |
|
993 |
"views which like to take the keyboard focus |
|
994 |
when the pointer enters can do so by redefining this |
|
995 |
to return true" |
|
996 |
||
997 |
^ true |
|
998 |
||
999 |
! ! |
|
1000 |
||
2501 | 1001 |
!ListModelView methodsFor:'initialization & release'! |
1390 | 1002 |
|
1003 |
create |
|
1004 |
"fetch device dependent resources |
|
1005 |
" |
|
1006 |
super create. |
|
1007 |
self fetchResources. |
|
1008 |
! |
|
1009 |
||
1010 |
initStyle |
|
1011 |
"setup viewStyle specifics |
|
1012 |
" |
|
1013 |
super initStyle. |
|
1014 |
||
1015 |
DefaultBackgroundColor notNil ifTrue:[ |
|
2595
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1016 |
viewBackground := DefaultBackgroundColor |
1390 | 1017 |
]. |
1018 |
lineSpacing := 0. |
|
1019 |
textStartLeft := 2. |
|
1020 |
fgColor := DefaultForegroundColor. |
|
1021 |
bgColor := viewBackground. |
|
1022 |
startOfLinesY := OrderedCollection new. |
|
1023 |
||
1024 |
startOfLinesY add:(2 + margin). "/ top inset of first line |
|
1025 |
||
1026 |
DefaultShadowColor notNil ifTrue:[ |
|
2595
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1027 |
shadowColor := DefaultShadowColor |
1390 | 1028 |
]. |
1029 |
||
1030 |
DefaultLightColor notNil ifTrue:[ |
|
2595
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1031 |
lightColor := DefaultLightColor |
1390 | 1032 |
]. |
1033 |
! |
|
1034 |
||
1035 |
initialize |
|
1036 |
"setup default attributes |
|
1037 |
" |
|
1038 |
super initialize. |
|
1039 |
||
2261 | 1040 |
viewOrigin := 0@0. |
1041 |
bitGravity := #NorthWest. |
|
1042 |
enabled := true. |
|
1043 |
autoScroll := true. |
|
1827 | 1044 |
scrollWhenUpdating := #beginOfText. |
2261 | 1045 |
hasConstantHeight := false. |
2352 | 1046 |
|
1047 |
renderer isNil ifTrue:[ |
|
1048 |
renderer := self class defaultRenderer forView:self. |
|
1049 |
]. |
|
2600 | 1050 |
self list:(self newDefaultList). |
1390 | 1051 |
! |
1052 |
||
1562 | 1053 |
mapped |
1054 |
"recompute list |
|
1055 |
" |
|
1056 |
shown ifFalse:[ |
|
2643 | 1057 |
self recomputeHeightOfContents. |
1058 |
self contentsChanged. |
|
1059 |
]. |
|
1060 |
renderer mapped. |
|
1562 | 1061 |
super mapped |
1062 |
! |
|
1063 |
||
1390 | 1064 |
recreate |
1832 | 1065 |
"sent after a snapin or a migration, reinit for new device" |
1828 | 1066 |
|
1390 | 1067 |
super recreate. |
1068 |
self fetchResources. |
|
1796
c9d801c011f7
recompute layout after snapIn (font geometry could be different)
Claus Gittinger <cg@exept.de>
parents:
1773
diff
changeset
|
1069 |
! |
c9d801c011f7
recompute layout after snapIn (font geometry could be different)
Claus Gittinger <cg@exept.de>
parents:
1773
diff
changeset
|
1070 |
|
c9d801c011f7
recompute layout after snapIn (font geometry could be different)
Claus Gittinger <cg@exept.de>
parents:
1773
diff
changeset
|
1071 |
reinitialize |
c9d801c011f7
recompute layout after snapIn (font geometry could be different)
Claus Gittinger <cg@exept.de>
parents:
1773
diff
changeset
|
1072 |
"reinit after snapIn (font geometry might be different) |
c9d801c011f7
recompute layout after snapIn (font geometry could be different)
Claus Gittinger <cg@exept.de>
parents:
1773
diff
changeset
|
1073 |
" |
c9d801c011f7
recompute layout after snapIn (font geometry could be different)
Claus Gittinger <cg@exept.de>
parents:
1773
diff
changeset
|
1074 |
super reinitialize. |
c9d801c011f7
recompute layout after snapIn (font geometry could be different)
Claus Gittinger <cg@exept.de>
parents:
1773
diff
changeset
|
1075 |
self recomputeHeightOfContents. |
c9d801c011f7
recompute layout after snapIn (font geometry could be different)
Claus Gittinger <cg@exept.de>
parents:
1773
diff
changeset
|
1076 |
self contentsChanged. |
c9d801c011f7
recompute layout after snapIn (font geometry could be different)
Claus Gittinger <cg@exept.de>
parents:
1773
diff
changeset
|
1077 |
|
2156 | 1078 |
! |
1079 |
||
1080 |
release |
|
1081 |
"remove dependencies |
|
1082 |
" |
|
2643 | 1083 |
renderer release. |
1084 |
||
2595
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1085 |
self listHolder removeDependent:self. |
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1086 |
self list removeDependent:self. |
2156 | 1087 |
|
1088 |
super release |
|
1390 | 1089 |
! ! |
1090 |
||
1091 |
!ListModelView methodsFor:'private'! |
|
1092 |
||
1457 | 1093 |
hasDamage |
2482
13acaaf02528
Use SynchronousWindoeSensor if no windowGroup
Stefan Vogel <sv@exept.de>
parents:
2464
diff
changeset
|
1094 |
"return true, if any damage events (i.e. expose or resize) are pending" |
1457 | 1095 |
|
2482
13acaaf02528
Use SynchronousWindoeSensor if no windowGroup
Stefan Vogel <sv@exept.de>
parents:
2464
diff
changeset
|
1096 |
^ self sensor hasDamageFor:self |
1457 | 1097 |
! |
1098 |
||
2595
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1099 |
startOfLinesY |
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1100 |
"returns a sequencable list which keeps all the absolute Y-start positions |
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1101 |
for each line into the list. The first entry is the top Y inset. |
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1102 |
" |
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1103 |
^ startOfLinesY |
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1104 |
! |
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1105 |
|
2640 | 1106 |
xAbsoluteOfItem:anItem |
1107 |
"returns the absolute x of the labeled text |
|
1108 |
" |
|
1109 |
^ (self xVisibleOfItem:anItem) + viewOrigin x. |
|
1110 |
! |
|
1111 |
||
1112 |
xVisibleOfItem:anItem |
|
1113 |
"returns the visible x of the labeled text |
|
1114 |
" |
|
1115 |
^ textStartLeft - viewOrigin x |
|
1116 |
! |
|
1117 |
||
1390 | 1118 |
yAbsoluteOfLine:aLineNr |
1119 |
"given a lineNr, return y-coordinate absolute |
|
1120 |
" |
|
1744 | 1121 |
|y y2 y1 cash| |
1446
fb46beba2d0c
startOfLines can have nil at end; lookup the first not nil
Claus Gittinger <cg@exept.de>
parents:
1444
diff
changeset
|
1122 |
|
2595
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1123 |
cash := self startOfLinesY. |
1446
fb46beba2d0c
startOfLines can have nil at end; lookup the first not nil
Claus Gittinger <cg@exept.de>
parents:
1444
diff
changeset
|
1124 |
|
1744 | 1125 |
(y := cash at:aLineNr ifAbsent:nil) notNil ifTrue:[ |
2595
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1126 |
^ y |
1446
fb46beba2d0c
startOfLines can have nil at end; lookup the first not nil
Claus Gittinger <cg@exept.de>
parents:
1444
diff
changeset
|
1127 |
]. |
1744 | 1128 |
|
1129 |
"/ recompute a y position |
|
2595
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1130 |
y1 := cash at:1 ifAbsent:2. |
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1131 |
y2 := cash at:2 ifAbsent:10. |
1744 | 1132 |
^ aLineNr * (y2 - y1) + y1 |
1390 | 1133 |
! |
1134 |
||
1135 |
yVisibleOfLine:aLineNr |
|
1136 |
"given a lineNr, return y-coordinate in view |
|
1137 |
" |
|
1744 | 1138 |
^ (self yAbsoluteOfLine:aLineNr) - viewOrigin y |
1390 | 1139 |
|
1140 |
||
1141 |
! |
|
1142 |
||
1143 |
yVisibleToLineNr:yVisible |
|
2301 | 1144 |
"returns the line number assigned to a physical y or nil if out of list |
1390 | 1145 |
" |
2301 | 1146 |
|cash |
1147 |
yAbs "{ Class: SmallInteger}" |
|
1148 |
size "{ Class: SmallInteger}" |
|
1149 |
ictr "{ Class: SmallInteger}" |
|
1150 |
yRun "{ Class: SmallInteger}" |
|
1390 | 1151 |
| |
2595
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1152 |
cash := self startOfLinesY. |
1390 | 1153 |
|
2301 | 1154 |
(size := cash size) < 2 ifTrue:[^ nil]. "/ empty list |
1390 | 1155 |
|
2301 | 1156 |
yAbs := yVisible + viewOrigin y. |
1157 |
yRun := cash at:size. |
|
1390 | 1158 |
|
2301 | 1159 |
yAbs >= yRun ifTrue:[ |
1160 |
yAbs == yRun ifTrue:[ ^ size - 1]. |
|
1161 |
^ nil "/ out of list |
|
1162 |
]. |
|
1390 | 1163 |
|
2301 | 1164 |
constantHeight notNil ifTrue:[ |
1165 |
yAbs := yAbs - (cash at:1). |
|
1166 |
yAbs < constantHeight ifTrue:[ ^ 1 ]. |
|
1167 |
^ yAbs // constantHeight + 1 |
|
1390 | 1168 |
]. |
1169 |
||
2301 | 1170 |
ictr := yAbs // (cash at:2). |
1171 |
ictr < 1 ifTrue:[ ictr := 1 ] |
|
1172 |
ifFalse:[ ictr := ictr min:size ]. |
|
1173 |
||
1174 |
yRun := cash at:ictr. |
|
1175 |
||
1176 |
yRun > yAbs ifTrue:[ |
|
1177 |
[(ictr := ictr - 1) > 0 ] whileTrue:[ |
|
1178 |
yRun := cash at:ictr. |
|
1179 |
yRun <= yAbs ifTrue:[ ^ ictr ]. |
|
1180 |
]. |
|
1181 |
^ 1 |
|
1390 | 1182 |
]. |
2301 | 1183 |
|
1184 |
[ yRun ~~ yAbs ] whileTrue:[ |
|
1185 |
ictr := ictr + 1. |
|
1186 |
yRun := cash at:ictr. |
|
1187 |
yRun > yAbs ifTrue:[ ^ ictr - 1 ]. |
|
1390 | 1188 |
]. |
2301 | 1189 |
^ ictr |
2464
2fcd6ccdaa7b
+yVisibleToRowNr: for protocol compatibility
Claus Gittinger <cg@exept.de>
parents:
2458
diff
changeset
|
1190 |
! |
2fcd6ccdaa7b
+yVisibleToRowNr: for protocol compatibility
Claus Gittinger <cg@exept.de>
parents:
2458
diff
changeset
|
1191 |
|
2fcd6ccdaa7b
+yVisibleToRowNr: for protocol compatibility
Claus Gittinger <cg@exept.de>
parents:
2458
diff
changeset
|
1192 |
yVisibleToRowNr:yVisible |
2fcd6ccdaa7b
+yVisibleToRowNr: for protocol compatibility
Claus Gittinger <cg@exept.de>
parents:
2458
diff
changeset
|
1193 |
"for protocol compatibility with DSVColumnView" |
2fcd6ccdaa7b
+yVisibleToRowNr: for protocol compatibility
Claus Gittinger <cg@exept.de>
parents:
2458
diff
changeset
|
1194 |
|
2fcd6ccdaa7b
+yVisibleToRowNr: for protocol compatibility
Claus Gittinger <cg@exept.de>
parents:
2458
diff
changeset
|
1195 |
^ self yVisibleToLineNr:yVisible |
1390 | 1196 |
! ! |
1197 |
||
1198 |
!ListModelView methodsFor:'protocol'! |
|
1199 |
||
1200 |
fetchResources |
|
1201 |
"fetch device colors and ..., to avoid reallocation at redraw time; |
|
1202 |
*** called after a create or snapin to fetch all device resources |
|
1203 |
" |
|
1204 |
fgColor := self colorOnDevice:fgColor. |
|
1205 |
bgColor := self colorOnDevice:bgColor. |
|
2097 | 1206 |
font := font onDevice:device. |
1390 | 1207 |
! |
1208 |
||
2352 | 1209 |
lineHeightFor:anItem |
1210 |
"returns the computed line height for an item |
|
1390 | 1211 |
" |
2352 | 1212 |
^ lineSpacing + (renderer heightFor:anItem) |
1390 | 1213 |
! |
1214 |
||
1215 |
listSizeChanged:anIndex nLines:noLines |
|
1216 |
"list size changed; information is stored to recompute the |
|
1217 |
width if required( preferredExtent, horizontal scroller ... ). |
|
1218 |
see: widthOfContents |
|
1219 |
*** if nLines is negative, lines are removed otherwise added. |
|
1220 |
" |
|
1221 |
|start "{ Class:SmallInteger }" |
|
1222 |
stop "{ Class:SmallInteger }" |
|
1223 |
size "{ Class:SmallInteger }" |
|
1224 |
| |
|
1225 |
preferredExtent := nil. |
|
1226 |
||
1227 |
widthOfContents isNil ifTrue:[ "/ recompute whole list |
|
2408 | 1228 |
^ self |
1390 | 1229 |
]. |
1230 |
||
2408 | 1231 |
(noLines < 0 or:[(size := self size) <= noLines]) ifTrue:[ |
1232 |
widthOfContents := nil. "/ force recompute whole list |
|
1233 |
^ self |
|
1390 | 1234 |
]. |
1235 |
||
1236 |
stop := anIndex + noLines - 1. "/ recompute a range |
|
1237 |
start := anIndex. |
|
1238 |
||
1239 |
computeWidthInRange notNil ifTrue:[ |
|
2408 | 1240 |
start := computeWidthInRange y. |
1241 |
stop < start ifTrue:[stop := start min:size]. |
|
1242 |
start := (computeWidthInRange x) min:anIndex. |
|
1390 | 1243 |
]. |
1244 |
computeWidthInRange := start@stop |
|
1245 |
! |
|
1246 |
||
1457 | 1247 |
lostSynchronisation |
1248 |
"called when the changes derived from the model are faster than the handling |
|
1249 |
" |
|
1250 |
shown ifTrue:[ |
|
2302
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
1251 |
self recomputeHeightOfContents. |
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
1252 |
self invalidate. |
5a2a1d5d09f8
remove asynchronous handling of changes; always disabled because doesn't work
ca
parents:
2301
diff
changeset
|
1253 |
self contentsChanged |
1457 | 1254 |
]. |
1255 |
! |
|
1256 |
||
2644 | 1257 |
newDefaultList |
1258 |
"creates and returns a new default list class, on default a List |
|
1259 |
" |
|
1260 |
^ List new |
|
1261 |
! |
|
1262 |
||
1390 | 1263 |
widthOfWidestLineBetween:firstLine and:lastLine |
1264 |
"return the width in pixels of the widest line in a range |
|
1265 |
" |
|
2645 | 1266 |
|item width| |
1267 |
||
2644 | 1268 |
width := renderer widthOfWidestLineBetween:firstLine and:lastLine. |
1269 |
width notNil ifTrue:[^ width]. |
|
1270 |
||
1390 | 1271 |
width := textStartLeft. |
1272 |
||
1273 |
firstLine to:lastLine do:[:anIndex| |
|
2408 | 1274 |
item := self at:anIndex ifAbsent:nil. |
1508
9c54f2e53da1
check whether #at:ifAbsent returns nil.
Claus Gittinger <cg@exept.de>
parents:
1457
diff
changeset
|
1275 |
|
2352 | 1276 |
item isNil ifTrue:[^ width + textStartLeft]. |
1508
9c54f2e53da1
check whether #at:ifAbsent returns nil.
Claus Gittinger <cg@exept.de>
parents:
1457
diff
changeset
|
1277 |
|
2352 | 1278 |
width := (renderer widthFor:item) max:width |
1390 | 1279 |
]. |
1280 |
^ width + textStartLeft |
|
1281 |
! ! |
|
1282 |
||
1820 | 1283 |
!ListModelView methodsFor:'queries'! |
1284 |
||
2274
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
1285 |
isLineVisible:aLineNr |
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
1286 |
"returns true if the line is visible" |
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
1287 |
|
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
1288 |
^ self isLineVisible:aLineNr in:self extent |
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
1289 |
! |
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
1290 |
|
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
1291 |
isLineVisible:aLineNr in:anExtentPoint |
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
1292 |
"returns true if the line is visible" |
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
1293 |
|
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
1294 |
|y| |
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
1295 |
y := self yVisibleOfLine:aLineNr. |
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
1296 |
|
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
1297 |
^ (y between:margin and:(anExtentPoint y - margin)) |
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
1298 |
! |
c973acbc021d
only make selection visible after a resize, if it was visible before
ca
parents:
2265
diff
changeset
|
1299 |
|
1820 | 1300 |
size |
2595
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1301 |
"returns the number of list entries |
1820 | 1302 |
" |
2595
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1303 |
^ self list size |
1820 | 1304 |
! ! |
1305 |
||
1390 | 1306 |
!ListModelView methodsFor:'recomputation'! |
1307 |
||
1308 |
preferredExtent |
|
1309 |
"returns the preferred extent |
|
1310 |
" |
|
1311 |
|x y| |
|
1312 |
||
1313 |
preferredExtent isNil ifTrue:[ |
|
2265 | 1314 |
y := self heightOfContents. |
1315 |
x := self widthOfContents. |
|
1316 |
preferredExtent := x@y |
|
1390 | 1317 |
]. |
1318 |
^ preferredExtent |
|
1319 |
||
1320 |
||
1321 |
! |
|
1322 |
||
1323 |
recomputeHeightOfContents |
|
1324 |
"recompute all the y positions |
|
1325 |
" |
|
1643 | 1326 |
|newList |
1327 |
yAbs "{ Class: SmallInteger }" |
|
1390 | 1328 |
lnHg "{ Class: SmallInteger }" |
1643 | 1329 |
size "{ Class: SmallInteger }" |
1390 | 1330 |
| |
1331 |
||
1643 | 1332 |
yAbs := startOfLinesY at:1. "/ top inset of first line |
2408 | 1333 |
size := self size. |
1643 | 1334 |
newList := OrderedCollection new:(size + 1). |
1335 |
||
1336 |
newList add:yAbs. |
|
1390 | 1337 |
|
2264 | 1338 |
size == 0 ifTrue:[ |
2408 | 1339 |
startOfLinesY := newList. |
1340 |
^ self |
|
2264 | 1341 |
]. |
1342 |
||
1343 |
hasConstantHeight ifTrue:[ |
|
2408 | 1344 |
constantHeight notNil ifTrue:[ lnHg := constantHeight ] |
1345 |
ifFalse:[ lnHg := self heightOfLineAt:1 ]. |
|
2265 | 1346 |
|
2408 | 1347 |
1 to:size do:[:anIndex| |
1348 |
newList add:(yAbs := yAbs + lnHg) |
|
1349 |
]. |
|
1350 |
startOfLinesY := newList. |
|
1351 |
^ self |
|
2264 | 1352 |
]. |
1353 |
||
1643 | 1354 |
1 to:size do:[:anIndex| |
2408 | 1355 |
lnHg := self heightOfLineAt:anIndex. |
1356 |
newList add:(yAbs := yAbs + lnHg) |
|
1390 | 1357 |
]. |
1643 | 1358 |
startOfLinesY := newList. |
1390 | 1359 |
! ! |
1360 |
||
1361 |
!ListModelView methodsFor:'scroller interface'! |
|
1362 |
||
2644 | 1363 |
getWidthOfContents |
1364 |
^ widthOfContents |
|
1365 |
! |
|
1366 |
||
1390 | 1367 |
heightOfContents |
1368 |
"return the height of the contents in pixels |
|
1369 |
" |
|
2595
1ab5dc7d4796
create a default list; thus we have not to test for nil
ca
parents:
2569
diff
changeset
|
1370 |
^ self startOfLinesY last ? 0 |
1390 | 1371 |
! |
1372 |
||
2261 | 1373 |
heightOfLineAt:aLineNr |
1374 |
"returns the total height for a line at an index( including lineSpacing ... ) |
|
1375 |
" |
|
1376 |
|item| |
|
1377 |
||
1378 |
hasConstantHeight ifTrue:[ |
|
2352 | 1379 |
constantHeight notNil ifTrue:[ ^ constantHeight ]. |
2408 | 1380 |
item := self at:1 ifAbsent:nil. |
2264 | 1381 |
|
2352 | 1382 |
item notNil ifTrue:[ |
1383 |
constantHeight := self lineHeightFor:item. |
|
1384 |
^ constantHeight |
|
1385 |
] |
|
2264 | 1386 |
] ifFalse:[ |
2408 | 1387 |
item := self at:aLineNr ifAbsent:nil. |
2264 | 1388 |
|
2352 | 1389 |
item notNil ifTrue:[ |
1390 |
^ self lineHeightFor:item |
|
1391 |
] |
|
2261 | 1392 |
]. |
2264 | 1393 |
^ 4 |
2261 | 1394 |
! |
1395 |
||
1390 | 1396 |
innerHeight |
1397 |
"returns the inner height of the contents shown |
|
1398 |
" |
|
1399 |
^ height - margin - margin |
|
1400 |
||
1401 |
! |
|
1402 |
||
1403 |
innerWidth |
|
1404 |
"returns the inner width of the contents shown |
|
1405 |
" |
|
1406 |
^ width - margin - margin |
|
1407 |
||
1408 |
! |
|
1409 |
||
1410 |
maxViewOriginY |
|
1411 |
"returns the maximum possible y of the view origin |
|
1412 |
" |
|
1413 |
^ (self heightOfContents - self innerHeight) max:0 |
|
1414 |
||
1415 |
||
1416 |
! |
|
1417 |
||
2644 | 1418 |
setWidthOfContents: aWidth |
1419 |
widthOfContents := aWidth. |
|
1420 |
! |
|
1421 |
||
1390 | 1422 |
verticalScrollStep |
1423 |
"return the amount to scroll when stepping up/down. |
|
1424 |
" |
|
1425 |
^ 10 |
|
1426 |
||
1427 |
! |
|
1428 |
||
1429 |
viewOrigin |
|
1430 |
"return the viewOrigin; thats the coordinate of the contents |
|
1431 |
which is shown topLeft in the view. |
|
1432 |
" |
|
1433 |
^ viewOrigin |
|
1434 |
||
1435 |
! |
|
1436 |
||
1437 |
widthOfContents |
|
1438 |
"return the width of the contents in pixels |
|
1439 |
" |
|
1440 |
|range |
|
1441 |
size "{ Class:SmallInteger }" |
|
1442 |
start "{ Class:SmallInteger }" |
|
1443 |
stop "{ Class:SmallInteger }" |
|
1444 |
| |
|
1445 |
(widthOfContents notNil and:[computeWidthInRange isNil]) ifTrue:[ |
|
2384 | 1446 |
^ widthOfContents + textStartLeft |
1390 | 1447 |
]. |
1448 |
range := computeWidthInRange. |
|
1449 |
computeWidthInRange := nil. |
|
1450 |
preferredExtent := nil. |
|
2384 | 1451 |
|
1452 |
shown ifFalse:[ ^ 60 ]. |
|
1453 |
||
2408 | 1454 |
size := self size. |
1390 | 1455 |
|
1456 |
size == 0 ifTrue:[ |
|
2384 | 1457 |
widthOfContents := 20. |
1390 | 1458 |
] ifFalse:[ |
2384 | 1459 |
widthOfContents isNil ifTrue:[ |
1460 |
widthOfContents := self widthOfWidestLineBetween:1 and:size |
|
1461 |
] ifFalse:[ |
|
1462 |
start := range x. |
|
1463 |
stop := range y min:size. |
|
1390 | 1464 |
|
2384 | 1465 |
start > stop ifFalse:[ |
1466 |
size := self widthOfWidestLineBetween:start and:stop. |
|
1390 | 1467 |
|
2384 | 1468 |
widthOfContents < size ifTrue:[ |
1469 |
widthOfContents := size |
|
1470 |
] |
|
1471 |
] |
|
1472 |
] |
|
1390 | 1473 |
]. |
1474 |
^ widthOfContents + textStartLeft |
|
1475 |
! |
|
1476 |
||
1477 |
xOriginOfContents |
|
1478 |
"return the horizontal origin of the contents in pixels |
|
1479 |
" |
|
1480 |
^ viewOrigin x |
|
1481 |
||
1482 |
! |
|
1483 |
||
1484 |
yOriginOfContents |
|
1485 |
"return the vertical origin of the contents in pixels |
|
1486 |
" |
|
1487 |
^ viewOrigin y |
|
1488 |
||
1489 |
! ! |
|
1490 |
||
1491 |
!ListModelView methodsFor:'scrolling'! |
|
1492 |
||
1493 |
halfPageDown |
|
1494 |
"scroll down half a page |
|
1495 |
" |
|
1827 | 1496 |
self scrollDown:(height // 2). |
1390 | 1497 |
|
1498 |
! |
|
1499 |
||
1500 |
halfPageUp |
|
1501 |
"scroll up half a page |
|
1502 |
" |
|
1827 | 1503 |
self scrollUp:(height // 2). |
1390 | 1504 |
|
1505 |
! |
|
1506 |
||
2367 | 1507 |
makeLineVisible:aLnNr |
1508 |
"make the line visible |
|
1509 |
" |
|
1510 |
aLnNr notNil ifTrue:[ |
|
1511 |
self scrollToLine:aLnNr |
|
1512 |
]. |
|
1513 |
! |
|
1514 |
||
1390 | 1515 |
scrollTo:anOrigin redraw:doRedraw |
1516 |
"change origin to have newOrigin be visible at the top-left. |
|
1517 |
" |
|
1538 | 1518 |
|newOrg dltOrg winGrp |
1390 | 1519 |
innerWT "{ Class:SmallInteger }" |
1520 |
innerHG "{ Class:SmallInteger }" |
|
1521 |
h "{ Class:SmallInteger }" |
|
1522 |
x "{ Class:SmallInteger }" |
|
1523 |
x0 "{ Class:SmallInteger }" |
|
1524 |
x1 "{ Class:SmallInteger }" |
|
1525 |
y "{ Class:SmallInteger }" |
|
1526 |
w "{ Class:SmallInteger }" |
|
1527 |
y0 "{ Class:SmallInteger }" |
|
1528 |
y1 "{ Class:SmallInteger }" |
|
1529 |
dX "{ Class:SmallInteger }" |
|
1530 |
dY "{ Class:SmallInteger }" |
|
1531 |
| |
|
1531 | 1532 |
|
1580 | 1533 |
realized ifFalse:[ |
2458
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1534 |
^ self |
1390 | 1535 |
]. |
1580 | 1536 |
|
1390 | 1537 |
innerWT := self innerWidth. |
1538 |
innerHG := self innerHeight. |
|
1539 |
||
1540 |
h := viewOrigin y. |
|
1541 |
||
1542 |
(y := anOrigin y) > h ifTrue:[ "/ end of contents |
|
2458
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1543 |
y > (dY := self maxViewOriginY) ifTrue:[ |
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1544 |
y := dY max:h |
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1545 |
] |
1390 | 1546 |
] ifFalse:[ |
2458
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1547 |
y := y max:0. |
1390 | 1548 |
]. |
1549 |
||
1550 |
(x := anOrigin x) > 0 ifTrue:[ |
|
2458
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1551 |
x := x min:(self widthOfContents - innerWT). |
1390 | 1552 |
]. |
1553 |
x := x max:0. |
|
1554 |
newOrg := (x @ y). |
|
1555 |
dltOrg := newOrg - viewOrigin. |
|
1556 |
dX := dltOrg x. |
|
1557 |
dY := dltOrg y. |
|
1558 |
||
1559 |
(dX == 0 and:[dY == 0]) ifTrue:[ |
|
2458
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1560 |
^ self |
1390 | 1561 |
]. |
1534 | 1562 |
dY := dY abs. |
1563 |
dX := dX abs. |
|
1390 | 1564 |
|
1534 | 1565 |
( (dX ~~ 0 and:[dY ~~ 0]) "/ scroll vertical & horizontal |
1566 |
or:[(innerHG - dY < 20 or:[innerWT - dX < 20])] "/ faster to invalidate screen |
|
1567 |
) ifTrue:[ |
|
2458
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1568 |
viewOrigin := newOrg. |
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1569 |
self originChanged:dltOrg. |
2659
3af857eb52fb
invalidate checks itself for shown-flag
Claus Gittinger <cg@exept.de>
parents:
2645
diff
changeset
|
1570 |
self invalidate. |
3af857eb52fb
invalidate checks itself for shown-flag
Claus Gittinger <cg@exept.de>
parents:
2645
diff
changeset
|
1571 |
^ self |
1534 | 1572 |
]. |
1753
17769f8df493
#scrollTo:redraw: first check whether full invalidate otherwise processRealExposeEventsFor:
ca
parents:
1752
diff
changeset
|
1573 |
|
17769f8df493
#scrollTo:redraw: first check whether full invalidate otherwise processRealExposeEventsFor:
ca
parents:
1752
diff
changeset
|
1574 |
(winGrp := self windowGroup) notNil ifTrue:[ |
2458
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1575 |
winGrp processRealExposeEventsFor:self. |
1753
17769f8df493
#scrollTo:redraw: first check whether full invalidate otherwise processRealExposeEventsFor:
ca
parents:
1752
diff
changeset
|
1576 |
]. |
17769f8df493
#scrollTo:redraw: first check whether full invalidate otherwise processRealExposeEventsFor:
ca
parents:
1752
diff
changeset
|
1577 |
|
17769f8df493
#scrollTo:redraw: first check whether full invalidate otherwise processRealExposeEventsFor:
ca
parents:
1752
diff
changeset
|
1578 |
self originWillChange. |
17769f8df493
#scrollTo:redraw: first check whether full invalidate otherwise processRealExposeEventsFor:
ca
parents:
1752
diff
changeset
|
1579 |
|
17769f8df493
#scrollTo:redraw: first check whether full invalidate otherwise processRealExposeEventsFor:
ca
parents:
1752
diff
changeset
|
1580 |
doRedraw ifFalse:[ |
2458
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1581 |
viewOrigin := newOrg. |
2659
3af857eb52fb
invalidate checks itself for shown-flag
Claus Gittinger <cg@exept.de>
parents:
2645
diff
changeset
|
1582 |
self originChanged:dltOrg. |
3af857eb52fb
invalidate checks itself for shown-flag
Claus Gittinger <cg@exept.de>
parents:
2645
diff
changeset
|
1583 |
^ self |
1753
17769f8df493
#scrollTo:redraw: first check whether full invalidate otherwise processRealExposeEventsFor:
ca
parents:
1752
diff
changeset
|
1584 |
]. |
17769f8df493
#scrollTo:redraw: first check whether full invalidate otherwise processRealExposeEventsFor:
ca
parents:
1752
diff
changeset
|
1585 |
|
1531 | 1586 |
self catchExpose. |
1587 |
viewOrigin := newOrg. |
|
1588 |
||
1390 | 1589 |
dY ~~ 0 ifTrue:[ "/ SCROLL VERTICAL |
2458
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1590 |
y0 := y1 := margin + dY. |
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1591 |
h := innerHG - dY. |
1390 | 1592 |
|
2458
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1593 |
dltOrg y < 0 ifTrue:[y0 := margin. y := y0] |
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1594 |
ifFalse:[y1 := margin. y := y1 + h]. |
1390 | 1595 |
|
2458
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1596 |
self copyFrom:self x:margin y:y0 toX:margin y:y1 width:innerWT height:h async:true. |
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1597 |
self invalidateX:margin y:y width:innerWT height:(innerHG - h). |
1390 | 1598 |
|
1599 |
] ifFalse:[ "/ SCROLL HORIZONTAL |
|
2458
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1600 |
x0 := x1 := dX + margin. |
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1601 |
w := innerWT - dX. |
1390 | 1602 |
|
2458
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1603 |
dltOrg x < 0 ifTrue:[x0 := x := margin ] |
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1604 |
ifFalse:[x1 := margin. x := w]. |
1390 | 1605 |
|
2458
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1606 |
self copyFrom:self x:x0 y:margin toX:x1 y:margin width:w height:innerHG async:true. |
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1607 |
self invalidateX:x y:margin width:(width - w) height:innerHG. |
1390 | 1608 |
]. |
1609 |
self originChanged:dltOrg. |
|
1531 | 1610 |
self waitForExpose. |
1611 |
||
2458
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1612 |
winGrp notNil ifTrue:[ |
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1613 |
winGrp processRealExposeEventsFor:self. |
0411397ef0a2
readraw after scroll: process expose events.
Claus Gittinger <cg@exept.de>
parents:
2408
diff
changeset
|
1614 |
]. |
1390 | 1615 |
! |
1616 |
||
1617 |
scrollToLine:aLineNumber |
|
1618 |
"make line visible |
|
1619 |
" |
|
1744 | 1620 |
|inHg "{ Class:SmallInteger }" |
1621 |
yTop "{ Class:SmallInteger }" |
|
1622 |
orgY "{ Class:SmallInteger }" |
|
1623 |
yBot "{ Class:SmallInteger }" |
|
1390 | 1624 |
| |
2408 | 1625 |
(shown and:[aLineNumber notNil and:[aLineNumber between:1 and:(self size)]]) ifFalse:[ |
1626 |
^ self |
|
1390 | 1627 |
]. |
1628 |
||
1744 | 1629 |
yTop := self yAbsoluteOfLine:aLineNumber. |
1630 |
inHg := self innerHeight. |
|
1631 |
orgY := viewOrigin y. |
|
1632 |
||
1633 |
yTop > orgY ifTrue:[ |
|
2408 | 1634 |
yBot := self yAbsoluteOfLine:(aLineNumber + 1). |
1390 | 1635 |
|
2408 | 1636 |
yBot <= (orgY + inHg) ifTrue:[ |
1637 |
^ self |
|
1638 |
]. |
|
1390 | 1639 |
]. |
1744 | 1640 |
yTop := (yTop - (inHg // 2)) max:0. |
1641 |
self scrollTo:(viewOrigin x @ yTop). |
|
1390 | 1642 |
! ! |
1643 |
||
1748 | 1644 |
!ListModelView methodsFor:'scrolling auto'! |
1645 |
||
1646 |
startAutoScroll:aBlock distance:aDistance |
|
1647 |
"setup for auto-scroll (when button-press-moving below view); |
|
1648 |
- timeDelta for scroll is computed from distance |
|
1649 |
" |
|
1650 |
|timeDelta| |
|
1651 |
||
1652 |
(autoScroll and:[aBlock notNil]) ifFalse:[ |
|
2265 | 1653 |
^ self stopAutoScroll |
1748 | 1654 |
]. |
1655 |
autoScrollBlock notNil ifTrue:[ |
|
2265 | 1656 |
Processor removeTimedBlock:autoScrollBlock. |
1748 | 1657 |
] ifFalse:[ |
2265 | 1658 |
self compressMotionEvents:false. |
1748 | 1659 |
]. |
1660 |
||
1661 |
timeDelta := 0.5 / (aDistance abs). |
|
1662 |
||
1663 |
autoScrollBlock := [ |
|
2265 | 1664 |
aBlock value. |
1665 |
Processor addTimedBlock:autoScrollBlock afterSeconds:timeDelta. |
|
1748 | 1666 |
]. |
1667 |
Processor addTimedBlock:autoScrollBlock afterSeconds:timeDelta. |
|
1668 |
||
1669 |
! |
|
1670 |
||
1671 |
stopAutoScroll |
|
1672 |
"stop any autoScroll |
|
1673 |
" |
|
1674 |
autoScrollBlock notNil ifTrue:[ |
|
2265 | 1675 |
Processor removeTimedBlock:autoScrollBlock. |
1676 |
autoScrollBlock := nil. |
|
1677 |
self compressMotionEvents:true. |
|
1748 | 1678 |
]. |
1679 |
! ! |
|
1680 |
||
2644 | 1681 |
!ListModelView methodsFor:'selection'! |
1682 |
||
1683 |
hasSelection |
|
1684 |
"on default false is returned |
|
1685 |
" |
|
1686 |
^ false |
|
1687 |
! ! |
|
1688 |
||
2352 | 1689 |
!ListModelView::Renderer class methodsFor:'documentation'! |
1690 |
||
1691 |
documentation |
|
1692 |
" |
|
1693 |
prepared for ListItemRenderer |
|
1694 |
.... SelectionItemRenderer ... |
|
1695 |
||
1696 |
goal: |
|
1697 |
allow the user to redefine the display operation and the dimesion queries |
|
1698 |
" |
|
1699 |
! ! |
|
1700 |
||
1701 |
!ListModelView::Renderer class methodsFor:'instance creation'! |
|
1702 |
||
1703 |
forView:aView |
|
1704 |
|renderer| |
|
1705 |
||
1706 |
renderer := self basicNew initialize. |
|
1707 |
renderer forView:aView. |
|
1708 |
^ renderer |
|
1709 |
! ! |
|
1710 |
||
2640 | 1711 |
!ListModelView::Renderer methodsFor:'change & update'! |
1712 |
||
1713 |
listWillChange |
|
1714 |
"called before the list changed, clear cashes ect. |
|
1715 |
here nothing is done |
|
1716 |
" |
|
2644 | 1717 |
! |
1718 |
||
1719 |
withinUpdateFromListDo:aBlock |
|
1720 |
"handle an update from the list |
|
1721 |
" |
|
1722 |
aBlock value |
|
2640 | 1723 |
! ! |
1724 |
||
2352 | 1725 |
!ListModelView::Renderer methodsFor:'displaying'! |
1726 |
||
1727 |
display:anItem atX:xLeft y:yTop lineHeight:h |
|
1728 |
"display the item on the view |
|
1729 |
" |
|
1730 |
|x0 y0 label| |
|
1731 |
||
1732 |
x0 := xLeft. |
|
1733 |
y0 := yTop. |
|
1734 |
||
1735 |
anItem isHierarchicalItem ifTrue:[ |
|
1736 |
anItem displayOn:view x:x0 y:y0 h:h |
|
1737 |
] ifFalse:[ |
|
1738 |
anItem isNil ifTrue:[^ self]. |
|
1739 |
||
1740 |
y0 := y0 - ((self heightFor:anItem) + 1 - h // 2). |
|
1741 |
label := anItem. |
|
1742 |
||
1743 |
label isImageOrForm ifFalse:[ |
|
1744 |
label isNumber ifTrue:[ |
|
1745 |
label := label printString |
|
1746 |
]. |
|
1747 |
y0 := y0 + view font ascent |
|
1748 |
]. |
|
1749 |
label displayOn:view x:x0 y:y0 |
|
1750 |
]. |
|
2644 | 1751 |
! |
1752 |
||
1753 |
postRedrawX:damageX y:yStartOrYDamage w:damageWidth from:startOrNil to:stopOrNil |
|
1754 |
"called after redraw of the items in range from start to stop is done; |
|
1755 |
if no items are damaged, start and stop is set to nil. |
|
1756 |
" |
|
1757 |
! |
|
1758 |
||
1759 |
validateDrawableItemsFrom:start to:stop |
|
1760 |
"called before drawing items from start to stop; if the method returns false |
|
1761 |
nothing will be drawn and a invalidate is pushed on the event queue. |
|
1762 |
On default true is returned. |
|
1763 |
" |
|
1764 |
^ true |
|
2352 | 1765 |
! ! |
1766 |
||
1767 |
!ListModelView::Renderer methodsFor:'instance creation'! |
|
1768 |
||
1769 |
forView:aView |
|
1770 |
view := aView. |
|
2644 | 1771 |
view shown ifTrue:[ self mapped ]. |
2643 | 1772 |
! |
1773 |
||
1774 |
mapped |
|
1775 |
"called if the view is mapped; can be redefined by subclass |
|
1776 |
" |
|
1777 |
! |
|
1778 |
||
1779 |
release |
|
1780 |
"called if the view is gone; can be redefined by subclass |
|
1781 |
" |
|
2352 | 1782 |
! ! |
1783 |
||
2644 | 1784 |
!ListModelView::Renderer methodsFor:'queries-behavior'! |
1785 |
||
1786 |
autoScrollHorizontal |
|
1787 |
"returns true if automatic scrolling horizontal |
|
1788 |
is allowed (the default is true). |
|
1789 |
" |
|
1790 |
^ true |
|
1791 |
! ! |
|
1792 |
||
2352 | 1793 |
!ListModelView::Renderer methodsFor:'queries-dimensions'! |
1794 |
||
1795 |
heightFor:anItem |
|
1796 |
"returns the height of an item on the view |
|
1797 |
" |
|
1798 |
^ anItem heightOn:view |
|
1799 |
! |
|
1800 |
||
2643 | 1801 |
maxItemWidthOrNil |
1802 |
"returns the maximum item width for drawing or nil |
|
1803 |
if unspecified (the default); used for cliping |
|
1804 |
" |
|
1805 |
^ nil |
|
1806 |
! |
|
1807 |
||
2352 | 1808 |
widthFor:anItem |
1809 |
"returns the width of an item on the view |
|
1810 |
" |
|
1811 |
^ anItem widthOn:view |
|
2644 | 1812 |
! |
1813 |
||
1814 |
widthOfWidestLineBetween:firstLine and:lastLine |
|
1815 |
"returns the width of the longest line in pixels in a range; if the rendere |
|
1816 |
cannot compute the width, nil is returned (the default). |
|
1817 |
" |
|
1818 |
^ nil |
|
2352 | 1819 |
! ! |
1820 |
||
1390 | 1821 |
!ListModelView class methodsFor:'documentation'! |
1822 |
||
1823 |
version |
|
2659
3af857eb52fb
invalidate checks itself for shown-flag
Claus Gittinger <cg@exept.de>
parents:
2645
diff
changeset
|
1824 |
^ '$Header: /cvs/stx/stx/libwidg2/ListModelView.st,v 1.93 2004-02-26 12:19:31 cg Exp $' |
1390 | 1825 |
! ! |
2244
c9a195d28e72
change #redrawLineAt: to #invalidateLineAt: (because is a invalidate)
ca
parents:
2188
diff
changeset
|
1826 |
|
1390 | 1827 |
ListModelView initialize! |