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'From Smalltalk/X, Version:2.10.4 on 18-nov-1994 at 16:11:48'!
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Ruler subclass:#TextRuler
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instanceVariableNames:'leftMargin rightMargin spec moving settingTab'
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classVariableNames:'LeftAlignForm RightAlignForm AlignForm CenterForm LeftMarginForm
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RightMarginForm LeftTabForm RightTabForm CenterTabForm
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DecimalTabForm'
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poolDictionaries:''
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category:'Views-Interactors'
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!
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TextRuler comment:'
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COPYRIGHT (c) 1991 by Claus Gittinger
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All Rights Reserved
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a Ruler for page layout showing tabs., margins etc.
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$Header: /cvs/stx/stx/libwidg2/TextRuler.st,v 1.8 1994-11-21 16:48:42 claus Exp $
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written oct 91 by claus
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'!
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!TextRuler class methodsFor:'documentation'!
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documentation
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"
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This is a special ruler built for text processing
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applications. Currently, it is not used in the system.
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It allows setting of margins, tabs and text-layout.
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TextRuler new open
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"
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! !
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!TextRuler class methodsFor:'defaults'!
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rightMarginForm
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"return the form displayed for the right margin marker"
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RightMarginForm isNil ifTrue:[
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RightMarginForm := Form fromFile:'rightMarg.xbm' resolution:100
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].
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^ RightMarginForm
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!
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leftMarginForm
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"return the form displayed for the left margin marker"
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LeftMarginForm isNil ifTrue:[
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LeftMarginForm := Form fromFile:'leftMargin.xbm' resolution:100
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].
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^ LeftMarginForm
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!
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rightAlignForm
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"return the form displayed in the rightAlign-button"
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RightAlignForm isNil ifTrue:[
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RightAlignForm := Form fromFile:'rightAlign.xbm' resolution:100
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].
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^ RightAlignForm
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!
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leftTabForm
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"return the form displayed in the leftTab-button"
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LeftTabForm isNil ifTrue:[
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LeftTabForm := Form fromFile:'leftTab.xbm' resolution:100
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].
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^ LeftTabForm
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!
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centerForm
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"return the form displayed in the center-button"
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CenterForm isNil ifTrue:[
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CenterForm := Form fromFile:'center.xbm' resolution:100
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].
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^ CenterForm
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!
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alignForm
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"return the form displayed in the align-button"
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AlignForm isNil ifTrue:[
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AlignForm := Form fromFile:'align.xbm' resolution:100
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].
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^ AlignForm
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!
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rightTabForm
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"return the form displayed in the rightTab-button"
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RightTabForm isNil ifTrue:[
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RightTabForm := Form fromFile:'rightTab.xbm' resolution:100
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].
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^ RightTabForm
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!
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leftAlignForm
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"return the form displayed in the leftAlign-button"
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LeftAlignForm isNil ifTrue:[
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LeftAlignForm := Form fromFile:'leftAlign.xbm' resolution:100
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].
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^ LeftAlignForm
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!
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decimalTabForm
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"return the form displayed in the decimalTab-button"
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DecimalTabForm isNil ifTrue:[
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DecimalTabForm := Form fromFile:'decimalTab.xbm' resolution:100
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].
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^ DecimalTabForm
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!
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centerTabForm
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"return the form displayed in the centerTab-button"
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CenterTabForm isNil ifTrue:[
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CenterTabForm := Form fromFile:'centerTab.xbm' resolution:100
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].
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^ CenterTabForm
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! !
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!TextRuler methodsFor:'accessing'!
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paragraphSpecification:aSpec
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spec := aSpec
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! !
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!TextRuler methodsFor:'redrawing'!
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redraw
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"redraw margin & tab marks"
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|x top form tab type tabStops tabAlign viewOrigin orgX orgY|
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super redraw.
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viewOrigin := self viewOrigin.
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orgX := viewOrigin x.
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orgY := viewOrigin y.
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self paint:fgColor.
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top := height - (font height) - (font ascent).
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x := (self inchToPixel:leftMargin) rounded.
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form := self class leftMarginForm.
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self displayForm:form
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x:(x - (form width // 2) - orgX)
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y:(top - form height - orgY).
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x := (self inchToPixel:rightMargin) rounded.
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form := self class rightMarginForm.
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self displayForm:form
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x:(x - (form width // 2) - orgX)
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y:(top - form height - orgY).
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spec notNil ifTrue:[
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tabStops := spec positions.
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tabAlign := spec align.
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tabStops notNil ifTrue:[
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1 to:tabStops size do:[:tabNr |
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tab := tabStops at:tabNr.
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type := tabAlign at:tabNr.
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x := (spec positionOfTab:tabNr on:self) rounded.
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(type == #left) ifTrue:[
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form := self class leftTabForm
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] ifFalse:[
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(type == #right) ifTrue:[
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form := self class rightTabForm
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] ifFalse:[
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(type == #center) ifTrue:[
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form := self class centerTabForm
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] ifFalse:[
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(type == #decimal) ifTrue:[
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form := self class decimalTabForm
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]
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]
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]
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].
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self displayForm:form
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x:(x - (form width // 2) - orgX)
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y:(top - form height - orgY)
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]
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]
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]
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!
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clearMargin:which
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"clear margin"
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|this other otherX otherX2 x x2 top form symOther viewOrigin|
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self paint:viewBackground.
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top := height - (font height) - (font ascent).
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(which == #left) ifTrue:[
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this := leftMargin.
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other := rightMargin. symOther := #right.
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form := self class leftMarginForm
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].
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(which == #right) ifTrue:[
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this := rightMargin.
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other := leftMargin. symOther := #left.
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form := self class rightMarginForm
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].
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x := (self inchToPixel:this) rounded - (form width // 2).
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viewOrigin := self viewOrigin.
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self displayForm:form
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x:x + viewOrigin x
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y:(top - form height - viewOrigin y).
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"
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if it covers any other, redraw them
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"
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x2 := x + form width.
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otherX := (self inchToPixel:other) rounded - (form width // 2).
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otherX2 := otherX + form width.
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otherX > x2 ifFalse:[
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otherX2 < x ifFalse:[
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self drawMargin:symOther
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]
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].
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!
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drawMargin:which
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"clear margin"
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|x top form viewOrigin|
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self paint:fgColor.
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top := height - (font height) - (font ascent).
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(which == #left) ifTrue:[
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x := (self inchToPixel:leftMargin) rounded.
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form := self class leftMarginForm
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].
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(which == #right) ifTrue:[
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x := (self inchToPixel:rightMargin) rounded.
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form := self class rightMarginForm
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].
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viewOrigin := self viewOrigin.
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self displayForm:form
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x:(x - (form width // 2) - viewOrigin x)
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y:(top - form height - viewOrigin y).
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! !
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!TextRuler methodsFor:'user interaction'!
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buttonRelease:button x:x y:y
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"position a tab or start moving a ruler"
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moving := nil
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!
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buttonPress:button x:pX y:y
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"position a tab or start moving a ruler"
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|mpos x|
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((button == #select) or:[button == 1]) ifFalse:[
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^ super buttonPress:button x:pX y:y
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].
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x := pX + self viewOrigin x.
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settingTab notNil ifTrue:[
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self setTabX:x.
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settingTab := nil.
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^ self
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].
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mpos := self inchToPixel:leftMargin.
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(((mpos - 4) <= x) and:[x <= (mpos + 4)]) ifTrue:[
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"start moving left margin"
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moving := #left.
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^ self
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].
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mpos := self inchToPixel:rightMargin.
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(((mpos - 4) <= x) and:[x <= (mpos + 4)]) ifTrue:[
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"start moving right margin"
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moving := #right.
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^ self
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].
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^ self
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!
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buttonMotion:state x:x y:y
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"position a tab or start moving a ruler"
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|mpos|
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0
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moving notNil ifTrue:[
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self clearMargin:moving.
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mpos := self pixelToInch:x + self viewOrigin x.
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(mpos < 0) ifTrue:[
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mpos := 0
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].
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(mpos > paperWidth) ifTrue:[
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mpos := paperWidth
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].
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(moving == #left) ifTrue:[
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leftMargin := mpos
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].
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(moving == #right) ifTrue:[
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rightMargin := mpos
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].
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self drawMargin:moving
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]
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!
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leftAlign
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^ self
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!
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rightAlign
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^ self
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!
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329 |
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leftTab
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settingTab := #left.
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!
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align
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^ self
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!
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338 |
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center
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^ self
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!
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342 |
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centerTab
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settingTab := #center.
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!
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346 |
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rightTab
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settingTab := #right.
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349 |
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350 |
!
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351 |
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decimalTab
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353 |
settingTab := #decimal.
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354 |
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0
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355 |
! !
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356 |
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357 |
!TextRuler methodsFor:'initializing'!
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358 |
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28
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359 |
initEvents
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360 |
super initEvents.
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361 |
self enableButtonEvents.
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362 |
self enableButtonMotionEvents
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363 |
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364 |
!
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365 |
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0
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366 |
initialize
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367 |
|leftAlignToggle alignToggle centerToggle rightAlignToggle
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368 |
leftTabButton centerTabButton rightTabButton decimalTabButton
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369 |
lineSpacingField panel1 panel2 panel3 scaleHeight h group|
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370 |
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371 |
super initialize.
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372 |
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373 |
scaleHeight := (font height) * 2.
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374 |
self height:(scaleHeight * 3).
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375 |
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376 |
h := self class leftAlignForm height.
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377 |
panel1 := HorizontalPanelView
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28
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378 |
origin:(0.0 @ 0.0)
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379 |
extent:[(width // 3 * 2) @ (h*2)]
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380 |
in:self.
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0
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381 |
panel1 borderWidth:0.
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28
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382 |
panel1 layout:#leftSpace.
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0
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383 |
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384 |
panel3 := HorizontalPanelView
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28
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385 |
origin:[(width // 3 * 2) @ margin]
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386 |
extent:[((width // 3)-margin) @ (h*2) "(height - scaleHeight)"]
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387 |
in:self.
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0
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388 |
panel3 borderWidth:0.
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389 |
panel3 layout:#right.
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390 |
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391 |
leftAlignToggle := RadioButton form:(self class leftAlignForm)
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28
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392 |
action:[self leftAlign]
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393 |
in:panel1.
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0
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394 |
alignToggle := RadioButton form:(self class alignForm)
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28
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395 |
action:[self align]
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396 |
in:panel1.
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0
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397 |
centerToggle := RadioButton form:(self class centerForm)
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28
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398 |
action:[self center]
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399 |
in:panel1.
|
|
0
|
400 |
rightAlignToggle := RadioButton form:(self class rightAlignForm)
|
|
28
|
401 |
action:[self rightAlign]
|
|
|
402 |
in:panel1.
|
|
0
|
403 |
group := RadioButtonGroup new.
|
|
|
404 |
group add:leftAlignToggle.
|
|
|
405 |
group add:alignToggle.
|
|
|
406 |
group add:centerToggle.
|
|
|
407 |
group add:rightAlignToggle.
|
|
|
408 |
|
|
28
|
409 |
"separator"
|
|
|
410 |
(View in:panel1) extent:(50 @ 2); borderWidth:0; level:0.
|
|
|
411 |
|
|
0
|
412 |
leftTabButton := Button form:(self class leftTabForm)
|
|
28
|
413 |
action:[self leftTab]
|
|
|
414 |
in:panel1.
|
|
0
|
415 |
centerTabButton := Button form:(self class centerTabForm)
|
|
28
|
416 |
action:[self centerTab]
|
|
|
417 |
in:panel1.
|
|
0
|
418 |
rightTabButton := Button form:(self class rightTabForm)
|
|
28
|
419 |
action:[self rightTab]
|
|
|
420 |
in:panel1.
|
|
0
|
421 |
decimalTabButton := Button form:(self class decimalTabForm)
|
|
28
|
422 |
action:[self decimalTab]
|
|
|
423 |
in:panel1.
|
|
0
|
424 |
|
|
28
|
425 |
"/ lineSpacingField := EditField in:panel3.
|
|
0
|
426 |
|
|
|
427 |
|
|
28
|
428 |
leftMargin := 0.0.
|
|
|
429 |
rightMargin := 8.5
|
|
0
|
430 |
|
|
28
|
431 |
"TextRuler new open"
|
|
0
|
432 |
! !
|
|
|
433 |
|