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"
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COPYRIGHT (c) 1989-93 by Claus Gittinger
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All Rights Reserved
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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View subclass:#ListView
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instanceVariableNames:'list
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attributes
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firstLineShown leftOffset
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nFullLinesShown nLinesShown
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fgColor bgColor
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partialLines
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leftMargin topMargin
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textStartLeft textStartTop innerWidth
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tabPositions lineSpacing
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fontHeight fontAscent
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fontIsFixedWidth fontWidth
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normalFont boldFont italicFont
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autoScrollBlock autoScrollDeltaT
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searchPattern'
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classVariableNames:'spaces'
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poolDictionaries:''
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category:'Views-Text'
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!
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ListView comment:'
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COPYRIGHT (c) 1989-93 by Claus Gittinger
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All Rights Reserved
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3
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$Header: /cvs/stx/stx/libwidg/ListView.st,v 1.2 1993-10-13 01:02:48 claus Exp $
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0
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written spring 89 by claus
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'!
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!ListView class methodsFor:'documentation'!
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documentation
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"
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a simple View for lists - the elements must understand printString
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the list is changed - the elements are replaced by their printStrings
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(if this leads to problems - I will change it later)
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This class can only passively display -
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selections, editing, cursors etc. must be done in subclasses.
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see SelectionInListView, TextView etc.
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This code currently handles only fixed-height fonts correctly -
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should be rewritten in some places ...
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Instance variables:
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list <aCollection> the text strings
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attributes <aCollection> corresponding attributes
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firstLineShown <Number> the index of the 1st visible line (1 ..)
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leftOffset <Number> left offset for horizontal scroll
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nFullLinesShown <Number> the number of unclipped lines in visible
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nLinesShown <Number> the number of lines in visible
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fgColor <Color> color to draw characters
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bgColor <Color> the background
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partialLines <Boolean> allow last line to be partial displayed
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leftMargin <Number> margin at left in pixels
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topMargin <Number> margin at top in pixels
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textStartLeft <Number> margin + leftMargin
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textStartTop <Number> margin + topMargin
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innerWidth <Number> width - margins
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tabPositions <aCollection> tab stops (cols)
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fontHeight <Number> font height in pixels
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fontAscent <Number> font ascent in pixels
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fontIsFixed <Boolean> true if its a fixed font
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fontWidth <Number> width of space
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lineSpacing <Number> pixels between lines
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normalFont <Font> font for normal characters
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boldFont <Font> font for bold characters
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italicFont <Font> font for italic characters
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searchPattern <String> last pattern for searching
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"
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! !
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!ListView class methodsFor:'defaults'!
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defaultTabPositions
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^ #(1 9 17 25 33 41 49 57 65 73 81 89 97 105 113 121 129 137 145)
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! !
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!ListView methodsFor:'initialization'!
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initialize
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super initialize.
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spaces isNil ifTrue:[
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spaces := String new:100
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].
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bitGravity := #NorthWest.
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list := nil.
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firstLineShown := 1.
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leftOffset := 0.
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partialLines := true.
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tabPositions := self class defaultTabPositions.
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leftMargin := (self horizontalPixelPerMillimeter:0.5) rounded.
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topMargin := (self verticalPixelPerMillimeter:0.5) rounded.
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textStartLeft := leftMargin + margin.
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textStartTop := topMargin + margin.
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innerWidth := width - textStartLeft - margin.
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self getFontParameters
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!
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initStyle
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super initStyle.
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fgColor := Black.
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bgColor := White.
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lineSpacing := 0.
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!
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initEvents
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self enableKeyEvents
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!
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create
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super create.
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"I cache font parameters here - they are used so often ..."
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self getFontParameters.
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self computeNumberOfLinesShown.
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fgColor := fgColor on:device.
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bgColor := bgColor on:device
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!
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recreate
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"recreate after a snapin"
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super recreate.
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"recompute margins and font parameters
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- display may have different resolution."
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leftMargin := (self horizontalPixelPerMillimeter:0.5) rounded.
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topMargin := (self verticalPixelPerMillimeter:0.5) rounded.
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textStartLeft := leftMargin + margin.
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textStartTop := topMargin + margin.
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innerWidth := width - textStartLeft - margin.
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self getFontParameters
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! !
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!ListView methodsFor:'accessing'!
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backgroundColor:aColor
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"set the background color"
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bgColor := aColor.
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shown ifTrue:[
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self redraw
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]
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!
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foregroundColor:aColor
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"set the foreground color"
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fgColor := aColor.
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shown ifTrue:[
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self redraw
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]
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!
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foregroundColor:color1 backgroundColor:color2
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"set both foreground and background colors"
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fgColor := color1.
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bgColor := color2.
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shown ifTrue:[
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self redraw
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]
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!
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partialLines:aBoolean
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"allow/disallow display of a last partial line"
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partialLines := aBoolean.
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self computeNumberOfLinesShown
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!
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leftMargin:aNumber
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"set the margin to left of 1st col"
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leftMargin := aNumber.
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textStartLeft := leftMargin + margin.
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innerWidth := width - textStartLeft - margin
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!
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leftMargin
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"return the margin to left of 1st col"
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^ leftMargin
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!
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202 |
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setList:aCollection
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"set the contents (a collection of strings) keep position unchanged"
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(aCollection isNil and:[list isNil]) ifTrue:[
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"no change"
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^ self
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].
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list := aCollection.
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list notNil ifTrue:[
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self expandTabs
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].
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self contentsChanged.
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shown ifTrue:[
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self redrawFromVisibleLine:1 to:nLinesShown
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]
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!
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list:aCollection
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"set the contents (a collection of strings) and scroll to top"
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|oldFirst|
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(aCollection isNil and:[list isNil]) ifTrue:[
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"no change"
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self scrollToTop.
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^ self
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].
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list := aCollection.
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list notNil ifTrue:[
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self expandTabs
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].
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self contentsChanged.
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"dont use scroll here to avoid the redraw"
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oldFirst := firstLineShown.
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firstLineShown := 1.
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self originChanged:(oldFirst - 1) negated.
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shown ifTrue:[
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self redrawFromVisibleLine:1 to:nLinesShown
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]
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!
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list
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"return the contents as a collection of strings"
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^ list
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!
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setContents:something
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"set the contents (either a string or a Collection of strings)
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dont change position"
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something isNil ifTrue:[
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self setList:nil
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] ifFalse:[
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self setList:(something asText)
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]
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!
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contents:something
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"set the contents (either a string or a Collection of strings)
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also scroll to top"
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something isNil ifTrue:[
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self list:nil
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] ifFalse:[
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self list:(something asText)
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]
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!
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contents
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"return the contents as a string"
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list isNil ifTrue:[^ ''].
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^ list asString
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!
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at:index put:aString
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"change a line and redisplay"
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self checkForExistingLine:index.
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list at:index put:aString.
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shown ifTrue:[
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self redrawLine:index
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]
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!
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at:index
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"retrieve a line; return nil if behond end-of-text"
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^ self listAt:index
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!
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removeIndexWithoutRedraw:lineNr
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"delete line - no redraw;
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3
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return true, if something was really deleted"
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0
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(list isNil or:[lineNr > list size]) ifTrue:[^ false].
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list removeIndex:lineNr.
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3
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lineNr "<=" < firstLineShown ifTrue:[
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0
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firstLineShown := firstLineShown - 1
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].
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self contentsChanged.
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^ true
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!
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removeIndex:lineNr
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"delete line"
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|visLine w
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srcY "{ Class: SmallInteger }" |
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w := self widthForScrollBetween:lineNr
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and:(firstLineShown + nLinesShown).
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(self removeIndexWithoutRedraw:lineNr) ifFalse:[^ self].
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visLine := self listLineToVisibleLine:lineNr.
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visLine notNil ifTrue:[
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srcY := topMargin + (visLine * fontHeight).
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self copyFrom:self x:textStartLeft y:srcY
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toX:textStartLeft y:(srcY - fontHeight)
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width:w height:((nLinesShown - visLine) * fontHeight).
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self redrawVisibleLine:nFullLinesShown.
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(nFullLinesShown ~~ nLinesShown) ifTrue:[
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self redrawVisibleLine:nLinesShown
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].
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exposePending := true.
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self waitForExpose
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]
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!
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font:aFont
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"set the font"
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aFont isNil ifTrue:[
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^ self error:'nil font'
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].
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super font:aFont.
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(font device == device) ifTrue:[
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self getFontParameters.
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self computeNumberOfLinesShown.
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shown ifTrue:[
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self redrawFromVisibleLine:1 to:nLinesShown
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]
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].
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348 |
self contentsChanged
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!
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350 |
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level:aNumber
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"set the level - cought here to update text-position variables
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(which avoid many computations later)"
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354 |
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super level:aNumber.
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356 |
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textStartLeft := leftMargin + margin.
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textStartTop := topMargin + margin.
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359 |
" textStartLeft := leftMargin. "
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innerWidth := width - textStartLeft - margin
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!
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362 |
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363 |
innerHeight
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364 |
"return the number of pixels visible of the contents
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365 |
- redefined since ListView adds a margin"
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366 |
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367 |
^ height - (2 * margin) - (2 * topMargin)
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368 |
! !
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369 |
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370 |
!ListView methodsFor:'queries'!
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371 |
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3
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372 |
firstLineShown
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373 |
"return the index of the first (possibly partial) visible line"
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374 |
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^ firstLineShown
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376 |
!
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377 |
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lastLineShown
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379 |
"return the index of the last (possibly partial)
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visible line"
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381 |
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382 |
^ firstLineShown + nLinesShown
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383 |
!
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384 |
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0
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385 |
numberOfLines
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3
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386 |
"return the number of lines the text has"
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0
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387 |
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388 |
^ list size
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389 |
!
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390 |
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391 |
lengthOfLongestLine
|
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3
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392 |
"return the length (in characters) of the longest line"
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0
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393 |
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394 |
|max "{ Class: SmallInteger }"
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|
395 |
thisLen "{ Class: SmallInteger }" |
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396 |
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|
397 |
max := 0.
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|
398 |
list notNil ifTrue:[
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399 |
list do:[:lineString |
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400 |
lineString notNil ifTrue:[
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|
401 |
thisLen := lineString size.
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|
402 |
(thisLen > max) ifTrue:[
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|
403 |
max := thisLen
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404 |
]
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405 |
]
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406 |
]
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407 |
].
|
|
|
408 |
^ max
|
|
|
409 |
!
|
|
|
410 |
|
|
|
411 |
lengthOfLongestLineBetween:firstLine and:lastLine
|
|
3
|
412 |
"return the length (in characters) of the longest line in a line-range"
|
|
0
|
413 |
|
|
|
414 |
|max "{ Class: SmallInteger }"
|
|
|
415 |
thisLen "{ Class: SmallInteger }"
|
|
|
416 |
listSize "{ Class: SmallInteger }"
|
|
|
417 |
first "{ Class: SmallInteger }"
|
|
|
418 |
last "{ Class: SmallInteger }" |
|
|
|
419 |
|
|
|
420 |
listSize := list size.
|
|
|
421 |
max := 0.
|
|
|
422 |
first := firstLine.
|
|
|
423 |
last := lastLine.
|
|
|
424 |
|
|
|
425 |
(first > listSize) ifTrue:[^ max].
|
|
|
426 |
(last > listSize) ifTrue:[
|
|
|
427 |
last := listSize
|
|
|
428 |
].
|
|
|
429 |
list from:first to:last do:[:lineString |
|
|
|
430 |
lineString notNil ifTrue:[
|
|
|
431 |
thisLen := lineString size.
|
|
|
432 |
(thisLen > max) ifTrue:[
|
|
|
433 |
max := thisLen
|
|
|
434 |
]
|
|
|
435 |
]
|
|
|
436 |
].
|
|
|
437 |
^ max
|
|
|
438 |
!
|
|
|
439 |
|
|
|
440 |
heightOfContents
|
|
|
441 |
"return the height of the contents in pixels
|
|
|
442 |
- used for scrollbar interface"
|
|
|
443 |
|
|
|
444 |
| numLines |
|
|
|
445 |
|
|
|
446 |
numLines := self numberOfLines.
|
|
|
447 |
^ numLines * fontHeight + textStartTop.
|
|
|
448 |
|
|
|
449 |
"it used to be that code - which is wrong"
|
|
|
450 |
(nLinesShown == nFullLinesShown) ifTrue:[
|
|
|
451 |
^ numLines * fontHeight
|
|
|
452 |
].
|
|
|
453 |
"add one - otherwise we cannot make last line
|
|
|
454 |
fully visible since scrolling is done by full lines only"
|
|
|
455 |
|
|
|
456 |
^ (numLines + 1) * fontHeight
|
|
|
457 |
!
|
|
|
458 |
|
|
|
459 |
widthOfContents
|
|
|
460 |
"return the width of the contents in pixels"
|
|
|
461 |
|
|
|
462 |
|max|
|
|
|
463 |
|
|
|
464 |
fontIsFixedWidth ifTrue:[
|
|
|
465 |
^ self lengthOfLongestLine * fontWidth
|
|
|
466 |
].
|
|
|
467 |
max := 0.
|
|
|
468 |
list notNil ifTrue:[
|
|
|
469 |
max := max max:(font widthOf:list)
|
|
|
470 |
].
|
|
|
471 |
^ max
|
|
|
472 |
!
|
|
|
473 |
|
|
|
474 |
yOriginOfContents
|
|
|
475 |
"return the vertical origin of the contents in pixels
|
|
|
476 |
- used for scrollbar interface"
|
|
|
477 |
|
|
|
478 |
^ (firstLineShown - 1) * fontHeight
|
|
|
479 |
!
|
|
|
480 |
|
|
|
481 |
xOriginOfContents
|
|
|
482 |
"return the horizontal origin of the contents in pixels
|
|
|
483 |
- used for scrollbar interface"
|
|
|
484 |
|
|
|
485 |
^leftOffset
|
|
|
486 |
!
|
|
|
487 |
|
|
|
488 |
leftIndentOfLine:lineNr
|
|
|
489 |
"return the number of spaces at the left in line, lineNr"
|
|
|
490 |
|
|
|
491 |
|lineString index end|
|
|
|
492 |
|
|
|
493 |
lineString := self listAt:lineNr.
|
|
|
494 |
lineString isNil ifTrue:[^ 0].
|
|
|
495 |
index := 1.
|
|
|
496 |
end := lineString size.
|
|
|
497 |
[index <= end] whileTrue:[
|
|
|
498 |
(lineString at:index) isSeparator ifFalse:[^ index - 1].
|
|
|
499 |
index := index + 1
|
|
|
500 |
].
|
|
|
501 |
^ 0
|
|
|
502 |
! !
|
|
|
503 |
|
|
|
504 |
!ListView methodsFor:'private'!
|
|
|
505 |
|
|
|
506 |
getFontParameters
|
|
|
507 |
"get some info of the used font. They are cached since we use them often .."
|
|
|
508 |
|
|
|
509 |
font := font on:device.
|
|
|
510 |
normalFont := font.
|
|
|
511 |
fontHeight := font height + lineSpacing.
|
|
|
512 |
fontAscent := font ascent.
|
|
|
513 |
fontWidth := font width.
|
|
|
514 |
fontIsFixedWidth := font isFixedWidth.
|
|
|
515 |
!
|
|
|
516 |
|
|
|
517 |
checkForExistingLine:lineNr
|
|
|
518 |
"check if a line for lineNr exists; if not, expand text"
|
|
|
519 |
|
|
|
520 |
list isNil ifTrue: [
|
|
|
521 |
list := Text new:lineNr.
|
|
|
522 |
self contentsChanged
|
|
|
523 |
] ifFalse: [
|
|
|
524 |
lineNr > (list size) ifTrue:[
|
|
|
525 |
list grow:lineNr.
|
|
|
526 |
self contentsChanged
|
|
|
527 |
]
|
|
|
528 |
]
|
|
|
529 |
!
|
|
|
530 |
|
|
|
531 |
getBoldFont
|
|
|
532 |
"get a bold-font corresponding to font"
|
|
|
533 |
|
|
|
534 |
font style notNil ifTrue:[
|
|
|
535 |
boldFont := Font family:(font family) face:'bold'
|
|
|
536 |
style:'roman' size:(font size)
|
|
|
537 |
].
|
|
|
538 |
boldFont isNil ifTrue:[
|
|
|
539 |
boldFont := font
|
|
|
540 |
]
|
|
|
541 |
!
|
|
|
542 |
|
|
|
543 |
getItalicFont
|
|
|
544 |
"get an italic-font corresponding to font"
|
|
|
545 |
|
|
|
546 |
font style notNil ifTrue:[
|
|
|
547 |
italicFont := Font family:(font family) face:'medium'
|
|
|
548 |
style:'oblique' size:(font size)
|
|
|
549 |
].
|
|
|
550 |
italicFont isNil ifTrue:[
|
|
|
551 |
italicFont := font
|
|
|
552 |
]
|
|
|
553 |
!
|
|
|
554 |
|
|
|
555 |
convertRTF:aList
|
|
|
556 |
"this is a q&d RTF to poor-text converter which removes any rich stuff.
|
|
|
557 |
- a first shot 'til DocumentView is finished ..."
|
|
|
558 |
|
|
|
559 |
|newList newLine charIndex inEscape char special|
|
|
|
560 |
|
|
|
561 |
newList := Text new:200.
|
|
|
562 |
newList grow:0.
|
|
|
563 |
|
|
|
564 |
newLine := ''.
|
|
|
565 |
aList do:[:line |
|
|
|
566 |
((line size == 0) or:[line isBlank]) ifTrue:[
|
|
|
567 |
newList add:newLine.
|
|
|
568 |
newLine := ''
|
|
|
569 |
] ifFalse:[
|
|
|
570 |
special := ((line at:1) == ${) or:[(line includes:$\)].
|
|
|
571 |
special := special or:[(line at:1) == $}].
|
|
|
572 |
special ifFalse:[
|
|
|
573 |
newList add:(newLine , line)
|
|
|
574 |
] ifTrue:[
|
|
|
575 |
charIndex := 1.
|
|
|
576 |
[charIndex <= line size] whileTrue:[
|
|
|
577 |
char := line at:charIndex.
|
|
|
578 |
((char == ${ ) or:[char == $} ]) ifTrue:[
|
|
|
579 |
"left-brace: ignore rest of line"
|
|
|
580 |
charIndex := line size + 1
|
|
|
581 |
] ifFalse:[
|
|
|
582 |
(char == $\) ifTrue:[
|
|
|
583 |
inEscape := true
|
|
|
584 |
] ifFalse:[
|
|
|
585 |
inEscape ifTrue:[
|
|
|
586 |
(char == Character space) ifTrue:[
|
|
|
587 |
inEscape := false
|
|
|
588 |
]
|
|
|
589 |
] ifFalse:[
|
|
|
590 |
newLine := newLine copyWith:char
|
|
|
591 |
]
|
|
|
592 |
].
|
|
|
593 |
charIndex := charIndex + 1
|
|
|
594 |
]
|
|
|
595 |
]
|
|
|
596 |
]
|
|
|
597 |
]
|
|
|
598 |
].
|
|
|
599 |
^ newList
|
|
|
600 |
!
|
|
|
601 |
|
|
|
602 |
expandTabs
|
|
|
603 |
"go through whole text expanding tabs into spaces"
|
|
|
604 |
|
|
|
605 |
|line newLine nLines "{ Class: SmallInteger }"|
|
|
|
606 |
|
|
|
607 |
list notNil ifTrue:[
|
|
|
608 |
nLines := list size.
|
|
|
609 |
1 to:nLines do:[:index |
|
|
|
610 |
line := list at:index.
|
|
|
611 |
line notNil ifTrue:[
|
|
|
612 |
(line class == String) ifFalse:[
|
|
|
613 |
newLine := line printString
|
|
|
614 |
] ifTrue:[
|
|
|
615 |
newLine := line
|
|
|
616 |
].
|
|
|
617 |
(newLine occurrencesOf:(Character tab)) == 0 ifFalse:[
|
|
|
618 |
newLine := self withTabsExpanded:newLine
|
|
|
619 |
].
|
|
|
620 |
(newLine ~~ line) ifTrue:[
|
|
|
621 |
list at:index put:newLine
|
|
|
622 |
]
|
|
|
623 |
]
|
|
|
624 |
]
|
|
|
625 |
]
|
|
|
626 |
!
|
|
|
627 |
|
|
|
628 |
nextTabAfter:colNr
|
|
3
|
629 |
"return the next tab position after col"
|
|
0
|
630 |
|
|
|
631 |
|col "{ Class: SmallInteger }"
|
|
|
632 |
tabIndex "{ Class: SmallInteger }"
|
|
|
633 |
thisTab "{ Class: SmallInteger }"
|
|
|
634 |
nTabs "{ Class: SmallInteger }" |
|
|
|
635 |
|
|
|
636 |
tabIndex := 1.
|
|
|
637 |
col := colNr.
|
|
|
638 |
thisTab := tabPositions at:tabIndex.
|
|
|
639 |
nTabs := tabPositions size.
|
|
|
640 |
[thisTab <= col] whileTrue:[
|
|
|
641 |
(tabIndex == nTabs) ifTrue:[^ thisTab].
|
|
|
642 |
tabIndex := tabIndex + 1.
|
|
|
643 |
thisTab := tabPositions at:tabIndex
|
|
|
644 |
].
|
|
|
645 |
^ thisTab
|
|
|
646 |
!
|
|
|
647 |
|
|
|
648 |
prevTabBefore:colNr
|
|
3
|
649 |
"return the prev tab position before col"
|
|
0
|
650 |
|
|
|
651 |
|col "{ Class: SmallInteger }"
|
|
|
652 |
tabIndex "{ Class: SmallInteger }"
|
|
|
653 |
thisTab "{ Class: SmallInteger }"
|
|
|
654 |
nTabs "{ Class: SmallInteger }" |
|
|
|
655 |
|
|
|
656 |
tabIndex := 1.
|
|
|
657 |
col := colNr.
|
|
|
658 |
thisTab := tabPositions at:tabIndex.
|
|
|
659 |
nTabs := tabPositions size.
|
|
|
660 |
[thisTab < col] whileTrue:[
|
|
|
661 |
(tabIndex == nTabs) ifTrue:[^ thisTab].
|
|
|
662 |
tabIndex := tabIndex + 1.
|
|
|
663 |
thisTab := tabPositions at:tabIndex
|
|
|
664 |
].
|
|
|
665 |
(tabIndex == 1) ifTrue:[
|
|
|
666 |
^ 1
|
|
|
667 |
].
|
|
|
668 |
^ tabPositions at:(tabIndex - 1)
|
|
|
669 |
!
|
|
|
670 |
|
|
|
671 |
withTabsExpanded:line
|
|
|
672 |
"good idea, to make this one a primitive"
|
|
|
673 |
|
|
|
674 |
|tmpString nString
|
|
|
675 |
currentMax "{ Class: SmallInteger }"
|
|
|
676 |
dstIndex "{ Class: SmallInteger }"
|
|
|
677 |
nextTab "{ Class: SmallInteger }" |
|
|
|
678 |
|
|
|
679 |
currentMax := 200.
|
|
|
680 |
tmpString := String new:currentMax.
|
|
|
681 |
dstIndex := 1.
|
|
|
682 |
line do:[:character |
|
|
|
683 |
(character == (Character tab)) ifTrue:[
|
|
|
684 |
nextTab := self nextTabAfter:dstIndex.
|
|
|
685 |
[dstIndex < nextTab] whileTrue:[
|
|
|
686 |
tmpString at:dstIndex put:(Character space).
|
|
|
687 |
dstIndex := dstIndex + 1
|
|
|
688 |
]
|
|
|
689 |
] ifFalse:[
|
|
|
690 |
tmpString at:dstIndex put:character.
|
|
|
691 |
dstIndex := dstIndex + 1
|
|
|
692 |
].
|
|
|
693 |
(dstIndex > currentMax) ifTrue:[
|
|
|
694 |
currentMax := currentMax + currentMax.
|
|
|
695 |
nString := String new:currentMax.
|
|
|
696 |
nString replaceFrom:1 to:(dstIndex - 1)
|
|
|
697 |
with:tmpString startingAt:1.
|
|
|
698 |
tmpString := nString.
|
|
|
699 |
nString := nil
|
|
|
700 |
].
|
|
|
701 |
|
|
|
702 |
"make stc-optimizer happy
|
|
|
703 |
- no need to return value of ifTrue:/ifFalse above"
|
|
|
704 |
0
|
|
|
705 |
].
|
|
|
706 |
^ tmpString copyFrom:1 to:(dstIndex - 1)
|
|
|
707 |
!
|
|
|
708 |
|
|
|
709 |
computeNumberOfLinesShown
|
|
|
710 |
"recompute the number of visible lines"
|
|
|
711 |
|
|
|
712 |
nFullLinesShown := self innerHeight // fontHeight.
|
|
|
713 |
nLinesShown := nFullLinesShown.
|
|
|
714 |
|
|
|
715 |
partialLines ifTrue:[
|
|
|
716 |
((nLinesShown * fontHeight) == height) ifFalse:[
|
|
|
717 |
nLinesShown := nLinesShown + 1
|
|
|
718 |
]
|
|
|
719 |
]
|
|
|
720 |
!
|
|
|
721 |
|
|
|
722 |
widthOfWidestLineBetween:firstLine and:lastLine
|
|
3
|
723 |
"return the width in pixels of the widest line in a range"
|
|
0
|
724 |
|
|
|
725 |
|max "{ Class: SmallInteger }"
|
|
|
726 |
first "{ Class: SmallInteger }"
|
|
|
727 |
last "{ Class: SmallInteger }"
|
|
|
728 |
thisLen "{ Class: SmallInteger }"
|
|
|
729 |
listSize "{ Class: SmallInteger }" |
|
|
|
730 |
|
|
|
731 |
fontIsFixedWidth ifTrue:[
|
|
|
732 |
^ (self lengthOfLongestLineBetween:firstLine and:lastLine) * fontWidth
|
|
|
733 |
].
|
|
|
734 |
listSize := list size.
|
|
|
735 |
max := 0.
|
|
|
736 |
first := firstLine.
|
|
|
737 |
last := lastLine.
|
|
|
738 |
|
|
|
739 |
(first > listSize) ifTrue:[^ max].
|
|
|
740 |
(last > listSize) ifTrue:[
|
|
|
741 |
last := listSize
|
|
|
742 |
].
|
|
|
743 |
|
|
|
744 |
list from:first to:last do:[:line |
|
|
|
745 |
line notNil ifTrue:[
|
|
|
746 |
thisLen := font widthOf:line.
|
|
|
747 |
(thisLen > max) ifTrue:[
|
|
|
748 |
max := thisLen
|
|
|
749 |
]
|
|
|
750 |
]
|
|
|
751 |
].
|
|
|
752 |
^ max
|
|
|
753 |
!
|
|
|
754 |
|
|
|
755 |
widthForScrollBetween:firstLine and:lastLine
|
|
3
|
756 |
"return the width in pixels for a scroll between firstLine and lastLine"
|
|
0
|
757 |
|
|
|
758 |
|w|
|
|
|
759 |
|
|
|
760 |
"for small width, its not worth searching for
|
|
|
761 |
longest line ..."
|
|
|
762 |
|
|
|
763 |
(width < 300) ifTrue:[^ innerWidth].
|
|
|
764 |
|
|
|
765 |
w := self widthOfWidestLineBetween:firstLine
|
|
|
766 |
and:lastLine.
|
|
|
767 |
(w > innerWidth) ifTrue:[^ innerWidth].
|
|
|
768 |
^ w
|
|
|
769 |
!
|
|
|
770 |
|
|
|
771 |
listAt:lineNr
|
|
3
|
772 |
"given a lineNumber, return the corresponding string"
|
|
0
|
773 |
|
|
|
774 |
list isNil ifTrue:[^ nil].
|
|
|
775 |
(lineNr between:1 and:list size) ifFalse:[^ nil].
|
|
|
776 |
^ list at:lineNr
|
|
|
777 |
!
|
|
|
778 |
|
|
|
779 |
listAt:lineNr from:startCol to:endCol
|
|
3
|
780 |
"return substring from startCol to endCol of a line"
|
|
0
|
781 |
|
|
|
782 |
|line stop lineLen|
|
|
|
783 |
|
|
|
784 |
line := self listAt:lineNr.
|
|
|
785 |
line isNil ifTrue:[^ nil].
|
|
|
786 |
lineLen := line size.
|
|
|
787 |
(startCol > lineLen) ifTrue:[^ nil].
|
|
|
788 |
stop := endCol.
|
|
|
789 |
(stop > lineLen) ifTrue:[stop := lineLen].
|
|
|
790 |
^ line copyFrom:startCol to:stop
|
|
|
791 |
!
|
|
|
792 |
|
|
|
793 |
listAt:lineNr from:startCol
|
|
3
|
794 |
"return right substring from startCol to end of a line"
|
|
0
|
795 |
|
|
|
796 |
|line|
|
|
|
797 |
|
|
|
798 |
line := self listAt:lineNr.
|
|
|
799 |
line isNil ifTrue:[^ nil].
|
|
|
800 |
(startCol > line size) ifTrue:[^ nil].
|
|
|
801 |
^ line copyFrom:startCol to:(line size)
|
|
|
802 |
!
|
|
|
803 |
|
|
|
804 |
listAt:lineNr to:endCol
|
|
3
|
805 |
"return left substring from start to endCol of a line"
|
|
0
|
806 |
|
|
|
807 |
|line stop|
|
|
|
808 |
|
|
|
809 |
line := self listAt:lineNr.
|
|
|
810 |
line isNil ifTrue:[^ nil].
|
|
|
811 |
stop := endCol.
|
|
|
812 |
(stop > line size) ifTrue:[stop := line size].
|
|
|
813 |
^ line copyFrom:1 to:stop
|
|
|
814 |
!
|
|
|
815 |
|
|
|
816 |
listLineToVisibleLine:listLineNr
|
|
|
817 |
"given a list line (1..) return visible linenr or nil"
|
|
|
818 |
|
|
|
819 |
|visibleLineNr "{ Class: SmallInteger }"|
|
|
|
820 |
|
|
|
821 |
shown ifFalse:[^ nil].
|
|
|
822 |
listLineNr isNil ifTrue:[^ nil].
|
|
|
823 |
visibleLineNr := listLineNr + 1 - firstLineShown.
|
|
|
824 |
(visibleLineNr between:1 and:nLinesShown) ifFalse:[^ nil].
|
|
|
825 |
^ visibleLineNr
|
|
|
826 |
!
|
|
|
827 |
|
|
|
828 |
visibleLineToListLine:visibleLineNr
|
|
|
829 |
"given a visible line (1..) return linenr in list or nil
|
|
|
830 |
(this one returns nil if the given visibleLineNr is one of the
|
|
|
831 |
separators)"
|
|
|
832 |
|
|
|
833 |
|listLineNr "{ Class: SmallInteger }"
|
|
|
834 |
listsize "{ Class: SmallInteger }" |
|
|
|
835 |
|
|
|
836 |
visibleLineNr isNil ifTrue:[^ nil].
|
|
|
837 |
listLineNr := visibleLineNr + firstLineShown - 1.
|
|
|
838 |
(listLineNr == 0) ifTrue:[^nil].
|
|
|
839 |
listsize := list size.
|
|
|
840 |
(listLineNr <= listsize) ifTrue:[^ listLineNr].
|
|
|
841 |
^ nil
|
|
|
842 |
!
|
|
|
843 |
|
|
|
844 |
absoluteLineToVisibleLine:absLineNr
|
|
|
845 |
"given an absolute line (1..) return visible linenr or nil"
|
|
|
846 |
|
|
|
847 |
absLineNr isNil ifTrue:[^ nil].
|
|
|
848 |
(absLineNr < firstLineShown) ifTrue:[^ nil].
|
|
|
849 |
(absLineNr >= (firstLineShown + nLinesShown)) ifTrue:[^ nil].
|
|
|
850 |
^ absLineNr - firstLineShown + 1
|
|
|
851 |
!
|
|
|
852 |
|
|
|
853 |
visibleLineToAbsoluteLine:visibleLineNr
|
|
|
854 |
"given a visible line (1..) return absolut linenr"
|
|
|
855 |
|
|
|
856 |
visibleLineNr isNil ifTrue:[^ nil].
|
|
|
857 |
^ visibleLineNr + firstLineShown - 1
|
|
|
858 |
!
|
|
|
859 |
|
|
|
860 |
yOfLine:visLineNr
|
|
|
861 |
"given a visible lineNr, return y-coordinate in view
|
|
|
862 |
- works for fix-height fonts only"
|
|
|
863 |
|
|
|
864 |
^ ((visLineNr - 1) * fontHeight) + textStartTop
|
|
|
865 |
!
|
|
|
866 |
|
|
|
867 |
xOfCol:col inLine:visLineNr
|
|
|
868 |
"given a visible line- and colNr, return x-coordinate in view"
|
|
|
869 |
|
|
|
870 |
|line lineSize tcol|
|
|
|
871 |
|
|
|
872 |
tcol := col - 1.
|
|
|
873 |
fontIsFixedWidth ifTrue:[
|
|
|
874 |
^ (tcol * fontWidth) + textStartLeft
|
|
|
875 |
].
|
|
|
876 |
line := self visibleAt:visLineNr.
|
|
|
877 |
line notNil ifTrue:[
|
|
|
878 |
lineSize := line size
|
|
|
879 |
] ifFalse:[
|
|
|
880 |
lineSize := 0
|
|
|
881 |
].
|
|
|
882 |
(lineSize == 0) ifTrue:[
|
|
|
883 |
^ (tcol * fontWidth) + textStartLeft
|
|
|
884 |
].
|
|
|
885 |
(lineSize < col) ifTrue:[
|
|
|
886 |
^ (font widthOf:line)
|
|
|
887 |
+ (fontWidth * (tcol - lineSize))
|
|
|
888 |
+ textStartLeft
|
|
|
889 |
].
|
|
|
890 |
^ (font widthOf:line from:1 to:tcol) + textStartLeft
|
|
|
891 |
!
|
|
|
892 |
|
|
|
893 |
colOfX:x inVisibleLine:visLineNr
|
|
|
894 |
"given a visible lineNr and x-coordinate, return colNr"
|
|
|
895 |
|
|
|
896 |
|lineString linePixelWidth xRel runCol posLeft posRight done|
|
|
|
897 |
|
|
|
898 |
xRel := x - textStartLeft.
|
|
|
899 |
fontIsFixedWidth ifTrue:[
|
|
|
900 |
^ (xRel // fontWidth) + 1
|
|
|
901 |
].
|
|
|
902 |
lineString := self visibleAt:visLineNr.
|
|
|
903 |
lineString notNil ifTrue:[
|
|
|
904 |
linePixelWidth := font widthOf:lineString
|
|
|
905 |
] ifFalse:[
|
|
|
906 |
linePixelWidth := 0
|
|
|
907 |
].
|
|
|
908 |
(xRel <= 0) ifTrue:[^ 1].
|
|
|
909 |
(linePixelWidth <= xRel) ifTrue:[
|
|
|
910 |
^ lineString size + ((xRel - linePixelWidth) // fontWidth) + 1
|
|
|
911 |
].
|
|
|
912 |
runCol := lineString size // 2.
|
|
|
913 |
(runCol == 0) ifTrue:[runCol := 1].
|
|
|
914 |
posLeft := font widthOf:lineString from:1 to:(runCol - 1).
|
|
|
915 |
posRight := font widthOf:lineString from:1 to:runCol.
|
|
|
916 |
done := (posLeft <= xRel) and:[posRight > xRel].
|
|
|
917 |
[done] whileFalse:[
|
|
|
918 |
(posRight <= xRel) ifTrue:[
|
|
|
919 |
runCol := runCol + 1.
|
|
|
920 |
posLeft := posRight.
|
|
|
921 |
posRight := font widthOf:lineString from:1 to:runCol
|
|
|
922 |
] ifFalse:[
|
|
|
923 |
(posLeft > xRel) ifTrue:[
|
|
|
924 |
runCol := runCol - 1.
|
|
|
925 |
(runCol == 0) ifTrue:[^ 0].
|
|
|
926 |
posRight := posLeft.
|
|
|
927 |
posLeft := font widthOf:lineString from:1 to:(runCol - 1)
|
|
|
928 |
]
|
|
|
929 |
].
|
|
|
930 |
done := (posLeft <= xRel) and:[posRight > xRel]
|
|
|
931 |
].
|
|
|
932 |
^ runCol
|
|
|
933 |
!
|
|
|
934 |
|
|
|
935 |
visibleLineOfY:y
|
|
|
936 |
"given a y-coordinate, return lineNr
|
|
|
937 |
- works for fix-height fonts only"
|
|
|
938 |
|
|
|
939 |
^ ((y - textStartTop) // fontHeight) + 1
|
|
|
940 |
!
|
|
|
941 |
|
|
3
|
942 |
visibleAttributeAt:visibleLineNr
|
|
|
943 |
"return the attributes of what is visible at line (numbers start at 1)"
|
|
0
|
944 |
|
|
|
945 |
|listLineNr listsize|
|
|
|
946 |
|
|
|
947 |
listLineNr := visibleLineNr + firstLineShown - 1.
|
|
|
948 |
(listLineNr == 0) ifTrue:[^ nil].
|
|
|
949 |
(attributes notNil) ifTrue:[
|
|
|
950 |
listsize := attributes size
|
|
|
951 |
] ifFalse:[
|
|
|
952 |
listsize := 0
|
|
|
953 |
].
|
|
|
954 |
(listLineNr <= listsize) ifTrue:[^ attributes at:listLineNr].
|
|
|
955 |
^ nil
|
|
|
956 |
!
|
|
|
957 |
|
|
|
958 |
visibleAt:visibleLineNr
|
|
3
|
959 |
"return what is visible at line (numbers start at 1)"
|
|
0
|
960 |
|
|
|
961 |
|listLineNr listsize|
|
|
|
962 |
|
|
|
963 |
listLineNr := visibleLineNr + firstLineShown - 1.
|
|
|
964 |
(listLineNr == 0) ifTrue:[^ nil].
|
|
|
965 |
(list notNil) ifTrue:[
|
|
|
966 |
listsize := list size
|
|
|
967 |
] ifFalse:[
|
|
|
968 |
listsize := 0
|
|
|
969 |
].
|
|
|
970 |
(listLineNr <= listsize) ifTrue:[^ list at:listLineNr].
|
|
|
971 |
^ ''
|
|
|
972 |
!
|
|
|
973 |
|
|
|
974 |
lineOfCharacterPosition:charPos
|
|
|
975 |
"given a character index within the contents-string,
|
|
|
976 |
return the lineNumber where the character is
|
|
|
977 |
- used to find line to hilight from Compilers error-position"
|
|
|
978 |
|
|
|
979 |
|lineNr sum lastLine|
|
|
|
980 |
|
|
|
981 |
lineNr := 1.
|
|
|
982 |
sum := 0.
|
|
|
983 |
lastLine := list size.
|
|
|
984 |
[sum < charPos] whileTrue:[
|
|
|
985 |
(lineNr > lastLine) ifTrue:[^ lineNr - 1].
|
|
|
986 |
sum := sum + (list at:lineNr) size + 1.
|
|
|
987 |
lineNr := lineNr + 1
|
|
|
988 |
].
|
|
|
989 |
^ lineNr - 1
|
|
|
990 |
!
|
|
|
991 |
|
|
|
992 |
characterPositionOfLine:lineNr col:col
|
|
|
993 |
"given a line/col position, return the character index within the contents-string,
|
|
|
994 |
- used with Compilers error-positioning"
|
|
|
995 |
|
|
|
996 |
|lineString pos|
|
|
|
997 |
|
|
|
998 |
pos := 1.
|
|
|
999 |
1 to:(lineNr - 1) do:[:lnr |
|
|
|
1000 |
lineString := list at:lnr.
|
|
|
1001 |
lineString notNil ifTrue:[
|
|
|
1002 |
pos := pos + lineString size
|
|
|
1003 |
].
|
|
|
1004 |
pos := pos + 1 "the return-character"
|
|
|
1005 |
].
|
|
|
1006 |
^ pos + col - 1
|
|
|
1007 |
! !
|
|
|
1008 |
|
|
|
1009 |
!ListView methodsFor:'searching'!
|
|
|
1010 |
|
|
|
1011 |
setSearchPattern:aString
|
|
|
1012 |
"set the searchpattern"
|
|
|
1013 |
|
|
|
1014 |
searchPattern := aString withoutSeparators
|
|
|
1015 |
!
|
|
|
1016 |
|
|
|
1017 |
searchForwardFor:pattern startingAtLine:startLine col:startCol ifFound:block1 else:block2
|
|
|
1018 |
"search for a pattern, if found evaluate block1 with row/col as arguments, if not
|
|
|
1019 |
found evaluate block2"
|
|
|
1020 |
|
|
|
1021 |
|lineString col cc found firstChar savedCursor patternSize|
|
|
|
1022 |
|
|
|
1023 |
patternSize := pattern size.
|
|
|
1024 |
patternSize ~~ 0 ifTrue:[
|
|
|
1025 |
savedCursor := cursor.
|
|
|
1026 |
self cursor:(Cursor questionMark).
|
|
|
1027 |
searchPattern := pattern.
|
|
|
1028 |
col := startCol + 1.
|
|
3
|
1029 |
"
|
|
0
|
1030 |
firstChar := pattern at:1.
|
|
3
|
1031 |
"
|
|
0
|
1032 |
startLine to:(list size) do:[:lnr |
|
|
|
1033 |
lineString := list at:lnr.
|
|
|
1034 |
lineString notNil ifTrue:[
|
|
3
|
1035 |
col := lineString findString:pattern startingAt:col ifAbsent:[0].
|
|
|
1036 |
col ~~ 0 ifTrue:[
|
|
|
1037 |
self cursor:savedCursor.
|
|
|
1038 |
^ block1 value:lnr value:col.
|
|
|
1039 |
]
|
|
|
1040 |
"
|
|
0
|
1041 |
col := lineString indexOf:firstChar startingAt:col.
|
|
|
1042 |
[col == 0] whileFalse:[
|
|
|
1043 |
cc := col.
|
|
|
1044 |
found := true.
|
|
|
1045 |
1 to:patternSize do:[:cnr |
|
|
|
1046 |
cc > lineString size ifTrue:[
|
|
|
1047 |
found := false
|
|
|
1048 |
] ifFalse:[
|
|
|
1049 |
(pattern at:cnr) ~~ (lineString at:cc) ifTrue:[
|
|
|
1050 |
found := false
|
|
|
1051 |
]
|
|
|
1052 |
].
|
|
|
1053 |
cc := cc + 1
|
|
|
1054 |
].
|
|
|
1055 |
found ifTrue:[
|
|
|
1056 |
self cursor:savedCursor.
|
|
|
1057 |
^ block1 value:lnr value:col.
|
|
|
1058 |
].
|
|
|
1059 |
col := col + 1.
|
|
|
1060 |
col := lineString indexOf:firstChar startingAt:col
|
|
|
1061 |
]
|
|
3
|
1062 |
"
|
|
0
|
1063 |
].
|
|
|
1064 |
col := 1
|
|
|
1065 |
]
|
|
|
1066 |
].
|
|
|
1067 |
"not found"
|
|
|
1068 |
|
|
|
1069 |
self cursor:savedCursor.
|
|
|
1070 |
^ block2 value
|
|
|
1071 |
!
|
|
|
1072 |
|
|
|
1073 |
searchBackwardFor:pattern startingAtLine:startLine col:startCol ifFound:block1 else:block2
|
|
|
1074 |
"search for a pattern, if found evaluate block1 with row/col as arguments, if not
|
|
|
1075 |
found evaluate block2"
|
|
|
1076 |
|
|
|
1077 |
|lineString col cc found firstChar savedCursor patternSize|
|
|
|
1078 |
|
|
|
1079 |
patternSize := pattern size.
|
|
|
1080 |
patternSize ~~ 0 ifTrue:[
|
|
|
1081 |
savedCursor := cursor.
|
|
|
1082 |
self cursor:(Cursor questionMark).
|
|
|
1083 |
searchPattern := pattern.
|
|
|
1084 |
col := startCol - 1.
|
|
|
1085 |
firstChar := pattern at:1.
|
|
|
1086 |
col > (list at:startLine) size ifTrue:[
|
|
|
1087 |
col := nil
|
|
|
1088 |
].
|
|
|
1089 |
startLine to:1 by:-1 do:[:lnr |
|
|
|
1090 |
lineString := list at:lnr.
|
|
|
1091 |
lineString notNil ifTrue:[
|
|
|
1092 |
col isNil ifTrue:[col := lineString size - patternSize + 1].
|
|
|
1093 |
[(col > 0) and:[(lineString at:col) ~~ firstChar]] whileTrue:[
|
|
|
1094 |
col := col - 1
|
|
|
1095 |
].
|
|
|
1096 |
[col > 0] whileTrue:[
|
|
|
1097 |
cc := col.
|
|
|
1098 |
found := true.
|
|
|
1099 |
1 to:patternSize do:[:cnr |
|
|
|
1100 |
cc > lineString size ifTrue:[
|
|
|
1101 |
found := false
|
|
|
1102 |
] ifFalse:[
|
|
|
1103 |
(pattern at:cnr) ~~ (lineString at:cc) ifTrue:[
|
|
|
1104 |
found := false
|
|
|
1105 |
]
|
|
|
1106 |
].
|
|
|
1107 |
cc := cc + 1
|
|
|
1108 |
].
|
|
|
1109 |
found ifTrue:[
|
|
|
1110 |
self cursor:savedCursor.
|
|
|
1111 |
^ block1 value:lnr value:col.
|
|
|
1112 |
].
|
|
|
1113 |
col := col - 1.
|
|
|
1114 |
[(col > 0) and:[(lineString at:col) ~~ firstChar]] whileTrue:[
|
|
|
1115 |
col := col - 1
|
|
|
1116 |
]
|
|
|
1117 |
]
|
|
|
1118 |
].
|
|
|
1119 |
col := nil
|
|
|
1120 |
]
|
|
|
1121 |
].
|
|
|
1122 |
"not found"
|
|
|
1123 |
|
|
|
1124 |
self cursor:savedCursor.
|
|
|
1125 |
^ block2 value
|
|
|
1126 |
! !
|
|
|
1127 |
|
|
|
1128 |
!ListView methodsFor:'scrolling'!
|
|
|
1129 |
|
|
|
1130 |
gotoLine:aLineNumber
|
|
|
1131 |
"position to line aLineNumber; this may be redefined
|
|
|
1132 |
in subclasses (for example to move the cursor also)"
|
|
|
1133 |
|
|
|
1134 |
^ self scrollToLine:aLineNumber
|
|
|
1135 |
!
|
|
|
1136 |
|
|
|
1137 |
pageDown
|
|
|
1138 |
"change origin to display next page"
|
|
|
1139 |
|
|
|
1140 |
self originWillChange.
|
|
|
1141 |
firstLineShown := firstLineShown + nFullLinesShown.
|
|
|
1142 |
self originChanged:nFullLinesShown.
|
|
|
1143 |
self redrawFromVisibleLine:1 to:nLinesShown
|
|
|
1144 |
!
|
|
|
1145 |
|
|
|
1146 |
pageUp
|
|
|
1147 |
"change origin to display previous page"
|
|
|
1148 |
|
|
|
1149 |
|oldOrg|
|
|
|
1150 |
|
|
|
1151 |
(firstLineShown == 1) ifFalse:[
|
|
|
1152 |
self originWillChange.
|
|
|
1153 |
oldOrg := firstLineShown.
|
|
|
1154 |
firstLineShown := firstLineShown - nFullLinesShown.
|
|
|
1155 |
(firstLineShown < 1) ifTrue:[
|
|
|
1156 |
firstLineShown := 1
|
|
|
1157 |
].
|
|
|
1158 |
self originChanged:(firstLineShown - oldOrg).
|
|
|
1159 |
self redrawFromVisibleLine:1 to:nLinesShown
|
|
|
1160 |
]
|
|
|
1161 |
!
|
|
|
1162 |
|
|
|
1163 |
halfPageDown
|
|
|
1164 |
"scroll down half a page"
|
|
|
1165 |
|
|
|
1166 |
self scrollDown:(nFullLinesShown // 2)
|
|
|
1167 |
!
|
|
|
1168 |
|
|
|
1169 |
halfPageUp
|
|
|
1170 |
"scroll up half a page"
|
|
|
1171 |
|
|
|
1172 |
self scrollUp:(nFullLinesShown // 2)
|
|
|
1173 |
!
|
|
|
1174 |
|
|
|
1175 |
scrollDown:nLines
|
|
|
1176 |
"change origin to scroll down some lines"
|
|
|
1177 |
|
|
|
1178 |
|w "{ Class:SmallInteger }"
|
|
|
1179 |
h "{ Class:SmallInteger }"
|
|
|
1180 |
m2 "{ Class:SmallInteger }"
|
|
|
1181 |
count "{ Class:SmallInteger }"|
|
|
|
1182 |
|
|
|
1183 |
count := nLines.
|
|
|
1184 |
(firstLineShown + nLines + nFullLinesShown > list size) ifTrue:[
|
|
|
1185 |
count := list size - firstLineShown - nFullLinesShown + 1
|
|
|
1186 |
].
|
|
|
1187 |
count <= 0 ifTrue:[^ self].
|
|
|
1188 |
|
|
|
1189 |
self originWillChange.
|
|
|
1190 |
(count >= nLinesShown) ifTrue:[
|
|
|
1191 |
firstLineShown := firstLineShown + count.
|
|
|
1192 |
self redrawFromVisibleLine:1 to:nLinesShown.
|
|
|
1193 |
self originChanged:(count negated)
|
|
|
1194 |
] ifFalse:[
|
|
|
1195 |
m2 := margin * 2.
|
|
|
1196 |
w := self widthForScrollBetween:firstLineShown
|
|
|
1197 |
and:(firstLineShown + nLinesShown).
|
|
|
1198 |
w := w + leftMargin.
|
|
|
1199 |
|
|
|
1200 |
firstLineShown := firstLineShown + count.
|
|
|
1201 |
h := (fontHeight * count) + textStartTop.
|
|
|
1202 |
self copyFrom:self x:margin y:h
|
|
|
1203 |
toX:margin y:textStartTop
|
|
|
1204 |
width:w height:(height - m2 - h).
|
|
|
1205 |
|
|
|
1206 |
self redrawFromVisibleLine:(nFullLinesShown - count + 1)
|
|
|
1207 |
to:nLinesShown.
|
|
|
1208 |
self originChanged:(count negated).
|
|
|
1209 |
exposePending := true.
|
|
|
1210 |
self waitForExpose
|
|
|
1211 |
]
|
|
|
1212 |
!
|
|
|
1213 |
|
|
|
1214 |
scrollDown
|
|
|
1215 |
"change origin to scroll down one line"
|
|
|
1216 |
|
|
|
1217 |
self scrollDown:1
|
|
|
1218 |
!
|
|
|
1219 |
|
|
|
1220 |
scrollUp:nLines
|
|
|
1221 |
"change origin to scroll up some lines"
|
|
|
1222 |
|
|
|
1223 |
|w "{ Class:SmallInteger }"
|
|
|
1224 |
h "{ Class:SmallInteger }"
|
|
|
1225 |
count "{ Class:SmallInteger }"|
|
|
|
1226 |
|
|
|
1227 |
count := nLines.
|
|
|
1228 |
count >= firstLineShown ifTrue:[
|
|
|
1229 |
count := firstLineShown - 1
|
|
|
1230 |
].
|
|
|
1231 |
(count == 0) ifTrue:[^ self].
|
|
|
1232 |
|
|
|
1233 |
self originWillChange.
|
|
|
1234 |
(count >= nLinesShown) ifTrue:[
|
|
|
1235 |
firstLineShown := firstLineShown - count.
|
|
|
1236 |
self redrawFromVisibleLine:1 to:nLinesShown.
|
|
|
1237 |
self originChanged:(count negated)
|
|
|
1238 |
] ifFalse:[
|
|
|
1239 |
w := self widthForScrollBetween:firstLineShown
|
|
|
1240 |
and:(firstLineShown + nLinesShown).
|
|
|
1241 |
w := w + leftMargin.
|
|
|
1242 |
firstLineShown := firstLineShown - count.
|
|
|
1243 |
h := (fontHeight * count) + topMargin.
|
|
|
1244 |
self copyFrom:self x:margin y:topMargin
|
|
|
1245 |
toX:margin y:h
|
|
|
1246 |
width:w height:(height - h - margin).
|
|
|
1247 |
self redrawFromVisibleLine:1 to:count.
|
|
|
1248 |
self originChanged:(count negated).
|
|
|
1249 |
exposePending := true.
|
|
|
1250 |
self waitForExpose
|
|
|
1251 |
]
|
|
|
1252 |
!
|
|
|
1253 |
|
|
|
1254 |
scrollUp
|
|
|
1255 |
"change origin to scroll up one line"
|
|
|
1256 |
|
|
|
1257 |
self scrollUp:1
|
|
|
1258 |
!
|
|
|
1259 |
|
|
|
1260 |
scrollToTop
|
|
|
1261 |
"change origin to start of text"
|
|
|
1262 |
|
|
|
1263 |
self scrollToLine:1
|
|
|
1264 |
!
|
|
|
1265 |
|
|
|
1266 |
scrollToLine:aLineNr
|
|
|
1267 |
"change origin to make aLineNr be the top line"
|
|
|
1268 |
|
|
|
1269 |
aLineNr < firstLineShown ifTrue:[
|
|
|
1270 |
self scrollUp:(firstLineShown - aLineNr)
|
|
|
1271 |
] ifFalse:[
|
|
|
1272 |
aLineNr > firstLineShown ifTrue:[
|
|
|
1273 |
self scrollDown:(aLineNr - firstLineShown)
|
|
|
1274 |
]
|
|
|
1275 |
]
|
|
|
1276 |
!
|
|
|
1277 |
|
|
|
1278 |
scrollVerticalToPercent:percent
|
|
|
1279 |
"scroll to a position given in percent of total"
|
|
|
1280 |
|
|
|
1281 |
|lineNr|
|
|
|
1282 |
|
|
|
1283 |
lineNr := (((self numberOfLines * percent) asFloat / 100.0) + 0.5) asInteger + 1.
|
|
|
1284 |
self scrollToLine:lineNr
|
|
|
1285 |
!
|
|
|
1286 |
|
|
|
1287 |
makeLineVisible:aListLineNr
|
|
|
1288 |
"if aListLineNr is not visible, scroll to make it visible"
|
|
|
1289 |
|
|
|
1290 |
|bott|
|
|
|
1291 |
|
|
|
1292 |
(aListLineNr isNil or:[shown not]) ifTrue:[^ self].
|
|
|
1293 |
|
|
|
1294 |
(aListLineNr >= firstLineShown) ifTrue:[
|
|
|
1295 |
(aListLineNr < (firstLineShown + nFullLinesShown)) ifTrue:[
|
|
|
1296 |
^ self
|
|
|
1297 |
]
|
|
|
1298 |
].
|
|
|
1299 |
(aListLineNr < nFullLinesShown) ifTrue:[
|
|
|
1300 |
^ self scrollToLine:1
|
|
|
1301 |
].
|
|
|
1302 |
(nFullLinesShown < 3) ifTrue:[
|
|
|
1303 |
^ self scrollToLine:aListLineNr
|
|
|
1304 |
].
|
|
|
1305 |
bott := self numberOfLines - (nFullLinesShown - 1).
|
|
|
1306 |
(aListLineNr > bott) ifTrue:[
|
|
|
1307 |
^ self scrollToLine:bott
|
|
|
1308 |
].
|
|
|
1309 |
self scrollToLine:(aListLineNr - (nFullLinesShown // 2) + 1)
|
|
|
1310 |
!
|
|
|
1311 |
|
|
|
1312 |
scrollSelectUp
|
|
|
1313 |
"just a template - I do not know anything about selections"
|
|
|
1314 |
|
|
|
1315 |
^ self subclassResponsibility
|
|
|
1316 |
!
|
|
|
1317 |
|
|
|
1318 |
scrollSelectDown
|
|
|
1319 |
"just a template - I do not know anything about selections"
|
|
|
1320 |
|
|
|
1321 |
^ self subclassResponsibility
|
|
|
1322 |
!
|
|
|
1323 |
|
|
|
1324 |
startScrollDown:yDistance
|
|
|
1325 |
"setup for auto-scroll down (when button-press-moving below view)
|
|
|
1326 |
- timeDelta for scroll is computed from distance"
|
|
|
1327 |
|
|
|
1328 |
|deltaT mm|
|
|
|
1329 |
|
|
|
1330 |
mm := yDistance // self verticalIntegerPixelPerMillimeter + 1.
|
|
|
1331 |
deltaT := 0.5 / mm.
|
|
|
1332 |
|
|
|
1333 |
(deltaT = autoScrollDeltaT) ifFalse:[
|
|
|
1334 |
autoScrollDeltaT := deltaT.
|
|
|
1335 |
autoScrollBlock isNil ifTrue:[
|
|
|
1336 |
autoScrollBlock := [self scrollSelectDown].
|
|
|
1337 |
device addTimedBlock:autoScrollBlock after:deltaT
|
|
|
1338 |
]
|
|
|
1339 |
]
|
|
|
1340 |
!
|
|
|
1341 |
|
|
|
1342 |
startScrollUp:yDistance
|
|
|
1343 |
"setup for auto-scroll up (when button-press-moving below view)
|
|
|
1344 |
- timeDelta for scroll is computed from distance"
|
|
|
1345 |
|
|
|
1346 |
|deltaT mm|
|
|
|
1347 |
|
|
|
1348 |
mm := yDistance negated // self verticalIntegerPixelPerMillimeter + 1.
|
|
|
1349 |
deltaT := 0.5 / mm.
|
|
|
1350 |
|
|
|
1351 |
(deltaT = autoScrollDeltaT) ifFalse:[
|
|
|
1352 |
autoScrollDeltaT := deltaT.
|
|
|
1353 |
autoScrollBlock isNil ifTrue:[
|
|
|
1354 |
autoScrollBlock := [self scrollSelectUp].
|
|
|
1355 |
device addTimedBlock:autoScrollBlock after:deltaT
|
|
|
1356 |
]
|
|
|
1357 |
]
|
|
|
1358 |
!
|
|
|
1359 |
|
|
|
1360 |
stopAutoScroll
|
|
|
1361 |
"stop any auto-scroll"
|
|
|
1362 |
|
|
|
1363 |
autoScrollBlock notNil ifTrue:[
|
|
|
1364 |
device compressMotionEvents:true.
|
|
|
1365 |
device removeTimedBlock:autoScrollBlock.
|
|
|
1366 |
autoScrollBlock := nil.
|
|
|
1367 |
autoScrollDeltaT := nil
|
|
|
1368 |
].
|
|
|
1369 |
! !
|
|
|
1370 |
|
|
|
1371 |
!ListView methodsFor:'drawing'!
|
|
|
1372 |
|
|
|
1373 |
drawVisibleLine:visLineNr col:col with:fg and:bg
|
|
|
1374 |
"draw single character at col index of visible line in fg/bg"
|
|
|
1375 |
|
|
|
1376 |
|y x lineString characterString|
|
|
|
1377 |
|
|
|
1378 |
lineString := self visibleAt:visLineNr.
|
|
|
1379 |
x := (self xOfCol:col inLine:visLineNr) - leftOffset.
|
|
|
1380 |
y := self yOfLine:visLineNr.
|
|
|
1381 |
|
|
|
1382 |
self paint:bg.
|
|
|
1383 |
|
|
|
1384 |
(lineString isNil or:[col > lineString size]) ifTrue:[
|
|
|
1385 |
self fillRectangleX:x y:y width:(font widthOf:' ')
|
|
|
1386 |
height:fontHeight.
|
|
|
1387 |
self paint:fg
|
|
|
1388 |
] ifFalse:[
|
|
|
1389 |
characterString := (lineString at:col) asString.
|
|
|
1390 |
self fillRectangleX:x y:y width:(font widthOf:characterString)
|
|
|
1391 |
height:fontHeight.
|
|
|
1392 |
self paint:fg.
|
|
|
1393 |
self displayString:characterString x:x y:(y + fontAscent)
|
|
|
1394 |
]
|
|
|
1395 |
!
|
|
|
1396 |
|
|
|
1397 |
drawVisibleLine:visLineNr from:startCol to:endCol with:fg and:bg
|
|
|
1398 |
"draw part of a visible line in fg/bg"
|
|
|
1399 |
|
|
|
1400 |
|y x lineString len characterString|
|
|
|
1401 |
|
|
|
1402 |
(endCol >= startCol) ifTrue:[
|
|
|
1403 |
lineString := self visibleAt:visLineNr.
|
|
|
1404 |
x := (self xOfCol:startCol inLine:visLineNr) - leftOffset.
|
|
|
1405 |
y := (self yOfLine:visLineNr).
|
|
|
1406 |
|
|
|
1407 |
len := lineString size.
|
|
|
1408 |
(startCol > len) ifTrue:[
|
|
|
1409 |
len := endCol - startCol + 1.
|
|
|
1410 |
self paint:bg.
|
|
|
1411 |
self fillRectangleX:x y:y
|
|
|
1412 |
width:(fontWidth * len)
|
|
|
1413 |
height:fontHeight
|
|
|
1414 |
] ifFalse:[
|
|
|
1415 |
(endCol > len) ifTrue:[
|
|
|
1416 |
characterString := String new:endCol.
|
|
|
1417 |
characterString replaceFrom:1 to:len with:lineString startingAt:1.
|
|
|
1418 |
lineString := characterString
|
|
|
1419 |
].
|
|
|
1420 |
self paint:bg.
|
|
|
1421 |
self fillRectangleX:x y:y width:(font widthOf:lineString from:startCol to:endCol)
|
|
|
1422 |
height:fontHeight.
|
|
|
1423 |
self paint:fg.
|
|
|
1424 |
self displayString:lineString from:startCol to:endCol x:x y:(y + fontAscent)
|
|
|
1425 |
]
|
|
|
1426 |
]
|
|
|
1427 |
!
|
|
|
1428 |
|
|
|
1429 |
drawVisibleLine:visLineNr from:startCol with:fg and:bg
|
|
|
1430 |
"draw right part of a visible line from startCol to end of line in fg/bg"
|
|
|
1431 |
|
|
|
1432 |
|y x lineString index1 index2|
|
|
|
1433 |
|
|
|
1434 |
(startCol < 1) ifTrue:[
|
|
|
1435 |
index1 := 1
|
|
|
1436 |
] ifFalse:[
|
|
|
1437 |
index1 := startCol
|
|
|
1438 |
].
|
|
|
1439 |
y := self yOfLine:visLineNr.
|
|
|
1440 |
x := (self xOfCol:index1 inLine:visLineNr) - leftOffset.
|
|
|
1441 |
self paint:bg.
|
|
|
1442 |
self fillRectangleX:x y:y
|
|
|
1443 |
width:(width + leftOffset - x)
|
|
|
1444 |
height:fontHeight.
|
|
|
1445 |
|
|
|
1446 |
lineString := self visibleAt:visLineNr.
|
|
|
1447 |
lineString notNil ifTrue:[
|
|
|
1448 |
index2 := lineString size.
|
|
|
1449 |
(index2 < index1) ifTrue:[^ self].
|
|
|
1450 |
(index1 <= index2) ifTrue:[
|
|
|
1451 |
self paint:fg.
|
|
|
1452 |
self displayString:lineString from:index1 to:index2 x:x y:(y + fontAscent)
|
|
|
1453 |
]
|
|
|
1454 |
]
|
|
|
1455 |
!
|
|
|
1456 |
|
|
|
1457 |
drawFromVisibleLine:startVisLineNr to:endVisLineNr with:fg and:bg
|
|
|
1458 |
"draw a visible line range in fg/bg"
|
|
|
1459 |
|
|
|
1460 |
|y "{ Class: SmallInteger }"
|
|
|
1461 |
x "{ Class: SmallInteger }"
|
|
|
1462 |
startLine "{ Class: SmallInteger }"
|
|
|
1463 |
endLine "{ Class: SmallInteger }"
|
|
|
1464 |
listSize e|
|
|
|
1465 |
|
|
|
1466 |
y := self yOfLine:startVisLineNr.
|
|
|
1467 |
self paint:bg.
|
|
|
1468 |
self fillRectangleX:margin y:y
|
|
|
1469 |
width:(width - (margin * 2))
|
|
|
1470 |
height:(endVisLineNr - startVisLineNr + 1) * fontHeight.
|
|
|
1471 |
|
|
|
1472 |
y := y + fontAscent.
|
|
|
1473 |
listSize := list size.
|
|
|
1474 |
|
|
|
1475 |
startLine := startVisLineNr + firstLineShown - 1.
|
|
|
1476 |
endLine := endVisLineNr + firstLineShown - 1.
|
|
|
1477 |
(startLine == 0) ifTrue:[
|
|
|
1478 |
y := y + fontHeight.
|
|
|
1479 |
startLine := startLine + 1
|
|
|
1480 |
].
|
|
|
1481 |
|
|
|
1482 |
(endLine > listSize) ifTrue:[
|
|
|
1483 |
e := listSize
|
|
|
1484 |
] ifFalse:[
|
|
|
1485 |
e := endLine
|
|
|
1486 |
].
|
|
|
1487 |
|
|
|
1488 |
(startLine <= e) ifTrue:[
|
|
|
1489 |
x := textStartLeft - leftOffset.
|
|
|
1490 |
self paint:fg.
|
|
|
1491 |
list from:startLine to:e do:[:line |
|
|
|
1492 |
line notNil ifTrue:[
|
|
|
1493 |
self displayString:line x:x y:y
|
|
|
1494 |
].
|
|
|
1495 |
y := y + fontHeight
|
|
|
1496 |
]
|
|
|
1497 |
]
|
|
|
1498 |
!
|
|
|
1499 |
|
|
|
1500 |
drawVisibleLine:visLineNr with:fg and:bg
|
|
|
1501 |
"draw a visible line in fg/bg"
|
|
|
1502 |
|
|
|
1503 |
|y line|
|
|
|
1504 |
|
|
|
1505 |
y := self yOfLine:visLineNr.
|
|
|
1506 |
line := self visibleAt:visLineNr.
|
|
|
1507 |
self paint:bg.
|
|
|
1508 |
self fillRectangleX:margin y:y
|
|
|
1509 |
width:(width - (margin * 2))
|
|
|
1510 |
height:fontHeight.
|
|
|
1511 |
line notNil ifTrue:[
|
|
|
1512 |
self paint:fg.
|
|
|
1513 |
self displayString:line x:(textStartLeft - leftOffset) y:(y + fontAscent)
|
|
|
1514 |
]
|
|
|
1515 |
! !
|
|
|
1516 |
|
|
|
1517 |
!ListView methodsFor:'redrawing'!
|
|
|
1518 |
|
|
|
1519 |
redrawVisibleLine:visLineNr col:col
|
|
|
1520 |
"redraw single character at col index of visible line"
|
|
|
1521 |
|
|
|
1522 |
shown ifTrue:[
|
|
|
1523 |
self drawVisibleLine:visLineNr col:col with:fgColor and:bgColor
|
|
|
1524 |
]
|
|
|
1525 |
!
|
|
|
1526 |
|
|
|
1527 |
redrawVisibleLine:visLineNr from:startCol to:endCol
|
|
|
1528 |
"redraw part of a visible line"
|
|
|
1529 |
|
|
|
1530 |
shown ifTrue:[
|
|
|
1531 |
self drawVisibleLine:visLineNr from:startCol to:endCol with:fgColor and:bgColor
|
|
|
1532 |
]
|
|
|
1533 |
!
|
|
|
1534 |
|
|
|
1535 |
redrawVisibleLine:visLineNr from:startCol
|
|
|
1536 |
"redraw right part of a visible line from startCol to end of line"
|
|
|
1537 |
|
|
|
1538 |
shown ifTrue:[
|
|
|
1539 |
self drawVisibleLine:visLineNr from:startCol with:fgColor and:bgColor
|
|
|
1540 |
]
|
|
|
1541 |
!
|
|
|
1542 |
|
|
|
1543 |
redrawFromVisibleLine:startVisLineNr to:endVisLineNr
|
|
|
1544 |
"redraw a visible line range"
|
|
|
1545 |
|
|
|
1546 |
shown ifTrue:[
|
|
|
1547 |
self drawFromVisibleLine:startVisLineNr to:endVisLineNr with:fgColor and:bgColor
|
|
|
1548 |
]
|
|
|
1549 |
!
|
|
|
1550 |
|
|
|
1551 |
redrawVisibleLine:visLineNr
|
|
|
1552 |
"redraw a visible line"
|
|
|
1553 |
|
|
|
1554 |
shown ifTrue:[
|
|
|
1555 |
self drawVisibleLine:visLineNr with:fgColor and:bgColor
|
|
|
1556 |
]
|
|
|
1557 |
!
|
|
|
1558 |
|
|
|
1559 |
redrawLine:lineNr col:col
|
|
|
1560 |
"redraw a single character"
|
|
|
1561 |
|
|
|
1562 |
|visibleLine|
|
|
|
1563 |
|
|
|
1564 |
visibleLine := self listLineToVisibleLine:lineNr.
|
|
|
1565 |
visibleLine notNil ifTrue:[
|
|
|
1566 |
self redrawVisibleLine:visibleLine col:col
|
|
|
1567 |
]
|
|
|
1568 |
!
|
|
|
1569 |
|
|
|
1570 |
redrawLine:lineNr
|
|
|
1571 |
"redraw a list line"
|
|
|
1572 |
|
|
|
1573 |
|visibleLine|
|
|
|
1574 |
|
|
|
1575 |
visibleLine := self listLineToVisibleLine:lineNr.
|
|
|
1576 |
visibleLine notNil ifTrue:[
|
|
|
1577 |
self redrawVisibleLine:visibleLine
|
|
|
1578 |
]
|
|
|
1579 |
!
|
|
|
1580 |
|
|
|
1581 |
redrawLine:lineNr from:startCol
|
|
|
1582 |
"redraw a list line from startCol to end of line"
|
|
|
1583 |
|
|
|
1584 |
|visibleLine|
|
|
|
1585 |
|
|
|
1586 |
visibleLine := self listLineToVisibleLine:lineNr.
|
|
|
1587 |
visibleLine notNil ifTrue:[
|
|
|
1588 |
self redrawVisibleLine:visibleLine from:startCol
|
|
|
1589 |
]
|
|
|
1590 |
!
|
|
|
1591 |
|
|
|
1592 |
redrawLine:lineNr from:startCol to:endCol
|
|
|
1593 |
"redraw a list line from startCol to endCol"
|
|
|
1594 |
|
|
|
1595 |
|visibleLine|
|
|
|
1596 |
|
|
|
1597 |
visibleLine := self listLineToVisibleLine:lineNr.
|
|
|
1598 |
visibleLine notNil ifTrue:[
|
|
|
1599 |
self redrawVisibleLine:visibleLine from:startCol to:endCol
|
|
|
1600 |
]
|
|
|
1601 |
!
|
|
|
1602 |
|
|
|
1603 |
redrawFromLine:lineNr
|
|
|
1604 |
"redraw starting at linrNr"
|
|
|
1605 |
|
|
|
1606 |
|visibleLine first|
|
|
|
1607 |
|
|
|
1608 |
shown ifTrue:[
|
|
|
1609 |
"if first line to redraw is above 1st visible line,
|
|
|
1610 |
start redraw at 1st visible line"
|
|
|
1611 |
(lineNr < firstLineShown) ifTrue:[
|
|
|
1612 |
first := firstLineShown
|
|
|
1613 |
] ifFalse:[
|
|
|
1614 |
first := lineNr
|
|
|
1615 |
].
|
|
|
1616 |
visibleLine := self listLineToVisibleLine:first.
|
|
|
1617 |
visibleLine notNil ifTrue:[
|
|
|
1618 |
self redrawFromVisibleLine:visibleLine to:nLinesShown
|
|
|
1619 |
]
|
|
|
1620 |
]
|
|
|
1621 |
!
|
|
|
1622 |
|
|
|
1623 |
redrawFromLine:start to:end
|
|
|
1624 |
"redraw lines from start to end"
|
|
|
1625 |
|
|
|
1626 |
|visibleFirst visibleLast first last lastLineShown|
|
|
|
1627 |
|
|
|
1628 |
shown ifTrue:[
|
|
|
1629 |
lastLineShown := firstLineShown + nLinesShown - 1.
|
|
|
1630 |
(start <= lastLineShown) ifTrue:[
|
|
|
1631 |
(end >= firstLineShown) ifTrue:[
|
|
|
1632 |
|
|
|
1633 |
"if first line to redraw is above 1st visible line,
|
|
|
1634 |
start redraw at 1st visible line"
|
|
|
1635 |
|
|
|
1636 |
(start < firstLineShown) ifTrue:[
|
|
|
1637 |
first := firstLineShown
|
|
|
1638 |
] ifFalse:[
|
|
|
1639 |
first := start
|
|
|
1640 |
].
|
|
|
1641 |
(end > lastLineShown) ifTrue:[
|
|
|
1642 |
last := lastLineShown
|
|
|
1643 |
] ifFalse:[
|
|
|
1644 |
last := end
|
|
|
1645 |
].
|
|
|
1646 |
visibleFirst := self listLineToVisibleLine:first.
|
|
|
1647 |
visibleLast := self listLineToVisibleLine:last.
|
|
|
1648 |
self redrawFromVisibleLine:visibleFirst to:visibleLast
|
|
|
1649 |
]
|
|
|
1650 |
]
|
|
|
1651 |
]
|
|
|
1652 |
!
|
|
|
1653 |
|
|
|
1654 |
redraw
|
|
|
1655 |
"redraw complete view"
|
|
|
1656 |
|
|
|
1657 |
shown ifTrue:[
|
|
|
1658 |
self redrawFromVisibleLine:1 to:nLinesShown
|
|
|
1659 |
]
|
|
|
1660 |
! !
|
|
|
1661 |
|
|
|
1662 |
!ListView methodsFor:'event processing'!
|
|
|
1663 |
|
|
|
1664 |
sizeChanged:how
|
|
|
1665 |
"size changed - move origin up if possible"
|
|
|
1666 |
|
|
|
1667 |
|listSize newOrigin|
|
|
|
1668 |
|
|
|
1669 |
self computeNumberOfLinesShown.
|
|
|
1670 |
innerWidth := width - textStartLeft - margin.
|
|
|
1671 |
shown ifTrue:[
|
|
|
1672 |
list notNil ifTrue:[
|
|
|
1673 |
listSize := self numberOfLines.
|
|
|
1674 |
((firstLineShown + nFullLinesShown) > listSize) ifTrue:[
|
|
|
1675 |
newOrigin := listSize - nFullLinesShown + 1.
|
|
|
1676 |
newOrigin < 1 ifTrue:[
|
|
|
1677 |
newOrigin := 1
|
|
|
1678 |
].
|
|
|
1679 |
self scrollToLine: newOrigin
|
|
|
1680 |
]
|
|
|
1681 |
]
|
|
|
1682 |
]
|
|
|
1683 |
!
|
|
|
1684 |
|
|
|
1685 |
redrawX:x y:y width:w height:h
|
|
|
1686 |
"a region must be redrawn"
|
|
|
1687 |
|
|
|
1688 |
|startLine stopLine startCol endCol|
|
|
|
1689 |
|
|
|
1690 |
startLine := self visibleLineOfY:y.
|
|
|
1691 |
stopLine := self visibleLineOfY:(y + h).
|
|
|
1692 |
|
|
|
1693 |
"if text-margin is affected"
|
|
|
1694 |
x < textStartLeft ifTrue:[
|
|
|
1695 |
self paint:bgColor.
|
|
|
1696 |
self fillRectangleX:margin y:margin width:(textStartLeft - margin)
|
|
|
1697 |
height:(height - margin - margin)
|
|
|
1698 |
].
|
|
|
1699 |
y < textStartTop ifTrue:[
|
|
|
1700 |
self paint:bgColor.
|
|
|
1701 |
self fillRectangleX:margin y:margin width:(width - margin - margin)
|
|
|
1702 |
height:(textStartTop - margin)
|
|
|
1703 |
].
|
|
|
1704 |
(w > (width // 4 * 3)) ifTrue:[
|
|
|
1705 |
"if area is big enough redraw whole lines"
|
|
|
1706 |
self redrawFromVisibleLine:startLine to:stopLine
|
|
|
1707 |
] ifFalse:[
|
|
|
1708 |
fontIsFixedWidth ifFalse:[
|
|
|
1709 |
"start/end col has to be computed for each line"
|
|
|
1710 |
|
|
|
1711 |
startLine to:stopLine do:[:i |
|
|
|
1712 |
startCol := self colOfX:x inVisibleLine:i.
|
|
|
1713 |
endCol := self colOfX:(x + w) inVisibleLine:i.
|
|
|
1714 |
self redrawVisibleLine:i from:startCol to:endCol
|
|
|
1715 |
]
|
|
|
1716 |
] ifTrue:[
|
|
|
1717 |
"start/end col is the same for all lines"
|
|
|
1718 |
|
|
|
1719 |
startCol := self colOfX:x inVisibleLine:startLine.
|
|
|
1720 |
endCol := self colOfX:(x + w) inVisibleLine:startLine.
|
|
|
1721 |
startLine to:stopLine do:[:i |
|
|
|
1722 |
self redrawVisibleLine:i from:startCol to:endCol
|
|
|
1723 |
]
|
|
|
1724 |
]
|
|
|
1725 |
]
|
|
|
1726 |
!
|
|
|
1727 |
|
|
|
1728 |
keyPress:key x:x y:y
|
|
|
1729 |
"a key was pressed - handle page-keys here"
|
|
|
1730 |
|
|
|
1731 |
(key == #Prior) ifTrue: [^ self pageUp].
|
|
|
1732 |
(key == #Next) ifTrue: [^ self pageDown].
|
|
|
1733 |
|
|
|
1734 |
(key == #Ctrlb) ifTrue:[^ self pageUp].
|
|
|
1735 |
(key == #Ctrlf) ifTrue:[^ self pageDown].
|
|
|
1736 |
(key == #Ctrld) ifTrue:[^ self halfPageDown].
|
|
|
1737 |
(key == #Ctrlu) ifTrue:[^ self halfPageUp].
|
|
|
1738 |
|
|
|
1739 |
super keyPress:key x:x y:y
|
|
|
1740 |
! !
|