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"
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COPYRIGHT (c) 2004 by eXept Software AG
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All Rights Reserved
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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"{ Package: 'stx:goodies' }"
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View subclass:#CharacterSetView
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instanceVariableNames:'codePageHolder selectedCodePointHolder'
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classVariableNames:''
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poolDictionaries:''
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category:'Collections-Text-Encodings'
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!
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2627
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!CharacterSetView class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 2004 by eXept Software AG
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All Rights Reserved
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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!
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documentation
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"
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Can be used both as an informative display of a fonts characters
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(opened via the fontPanels - text-preview popUpMenu)
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or to insert characters into a textView (opened by a textEditors misc-specialCharacters menu).
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"
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! !
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!CharacterSetView class methodsFor:'startup'!
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open
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self openOn:View defaultFont
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"
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self open
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"
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!
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openOn:aFont
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^ self
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openOn:aFont
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label:aFont printString
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clickLabel:'Click on glyph to see its codePoint.'
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"
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self openOn:(View defaultFont).
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"
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!
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openOn:aFont label:viewLabel clickLabel:clickLabel
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|top panel v bNext bPrev bFirst bLast rangeLabel codePointLabel
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first last next prev enable update updateCodePoint w h|
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top := StandardSystemView new.
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top label:viewLabel.
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v := self origin:0.0@0.0 corner:1.0@1.0 in:top.
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v topInset:25.
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v font:aFont.
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panel := HorizontalPanelView in:top.
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panel origin:(0.0 @ 0.0) corner:(1.0 @ 0.0).
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panel bottomInset:-25.
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panel horizontalLayout:#left.
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"/ actions
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updateCodePoint := [
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|selectedCodePoint|
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selectedCodePoint := v selectedCodePoint.
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selectedCodePoint isNil ifTrue:[
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codePointLabel label:clickLabel
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] ifFalse:[
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codePointLabel label:('Selected: u%1'
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bindWith:((selectedCodePoint printStringRadix:16) leftPaddedTo:4 with:$0)).
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].
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codePointLabel repairDamage.
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].
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update := [
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|uOffs selectedCodePoint|
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uOffs := v codePage * 16r0100.
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rangeLabel label:('u%1 ... u%2'
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bindWith:((uOffs printStringRadix:16) leftPaddedTo:4 with:$0)
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with:(((uOffs + 16rFF) printStringRadix:16) leftPaddedTo:4 with:$0)).
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rangeLabel repairDamage.
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].
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enable := [
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v codePage > 0 ifTrue:[
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bPrev enable.
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bFirst enable.
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] ifFalse:[
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bPrev disable.
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bFirst disable.
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].
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v codePage < 16rFF ifTrue:[
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bNext enable.
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bLast enable.
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] ifFalse:[
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bNext disable.
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bLast disable.
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].
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].
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next := [
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v codePage:(v codePage + 1).
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enable value.
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update value.
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].
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prev := [
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v codePage:(v codePage - 1).
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enable value.
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update value.
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].
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first := [
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v codePage:0.
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enable value.
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update value.
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].
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last := [
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v codePage:16rFF.
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enable value.
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update value.
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].
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bFirst := Button label:(ToolbarIconLibrary start16x16Icon) in:panel.
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bFirst action:first.
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bPrev := Button label:(ToolbarIconLibrary back16x16Icon) in:panel.
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bPrev controller beTriggerOnDown.
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bPrev action:prev.
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bPrev disable.
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bPrev autoRepeat:true.
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bNext := Button label:(ToolbarIconLibrary forward16x16Icon) in:panel.
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bNext controller beTriggerOnDown.
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bNext action:next.
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bNext autoRepeat:true.
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bLast := Button label:(ToolbarIconLibrary finish16x16Icon) in:panel.
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bLast action:last.
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rangeLabel := Label label:'RangeStart .. RangeStop' in:panel.
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codePointLabel := Label label:clickLabel in:panel.
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codePointLabel foregroundColor:(Color blue).
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update value.
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v selectedCodePointHolder onChangeEvaluate:updateCodePoint.
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w := v preferredExtent x max:(panel preferredExtent x).
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h := v preferredExtent y + (panel preferredExtent y).
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top extent:(w @ h).
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top open.
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^ v
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"
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self openOn:(View defaultFont).
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"
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! !
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!CharacterSetView methodsFor:'accessing'!
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codePage
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^ codePageHolder value
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!
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codePage:pageNr
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codePageHolder value:pageNr.
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!
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codePageHolder
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^ codePageHolder
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!
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selectedCodePoint
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^ selectedCodePointHolder value
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selectedCodePointHolder
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^ selectedCodePointHolder
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! !
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!CharacterSetView methodsFor:'drawing'!
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redraw
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|wCol hRow dY|
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wCol := width / 16.
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hRow := height / 16.
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0 to:16 do:[:col |
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|x|
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x := (col * wCol) rounded asInteger.
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self displayLineFromX:x y:0 toX:x y:height-1.
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].
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0 to:15 do:[:row |
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|y|
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y := (row * hRow) rounded asInteger.
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self displayLineFromX:0 y:y toX:width y:y.
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].
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dY := (hRow - (font height)) // 2 + (font ascent).
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0 to:15 do:[:row |
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|y0 y1 y rowBase|
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rowBase := row * 16r10.
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y := y0 := row * hRow.
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y := y rounded asInteger.
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y := y + dY.
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y1 := (row+1) * hRow.
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y1 := y1 rounded asInteger.
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0 to:15 do:[:col |
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|x0 x1 x codePoint s|
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codePoint := rowBase + col.
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s := (Character value:(self codePage * 16r100) + codePoint) asString.
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x := x0 := (col * wCol) rounded asInteger.
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x := x rounded asInteger.
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x := x + (wCol / 2).
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x := x - ((font widthOf:s) // 2).
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x1 := ((col+1) * wCol) rounded asInteger.
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x1 := x1 rounded asInteger.
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codePoint == self selectedCodePoint ifTrue:[
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self paint:(Color red).
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self fillRectangle:((x0+1)@(y0+1) corner:(x1)@(y1)).
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self paint:(Color white).
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self displayString:s x:x y:y.
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self paint:(Color black).
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] ifFalse:[
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self displayString:s x:x y:y.
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].
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].
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].
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"
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(self extent:300@600) open
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"
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!
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sizeChanged:how
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self clear.
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self redraw.
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! !
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!CharacterSetView methodsFor:'event handling'!
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buttonPress:button x:x y:y
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|wCol hRow row col code|
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wCol := width / 16.
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hRow := height / 16.
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row := y // hRow.
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col := x // wCol.
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code := (self codePage*16r0100) + (row * 16) + col.
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selectedCodePointHolder value:code.
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!
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codePageChanged
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realized ifTrue:[
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self clear.
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self redraw.
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].
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!
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selectedCodePointChanged
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realized ifTrue:[
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self clear.
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self redraw.
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].
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! !
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!CharacterSetView methodsFor:'initialization'!
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initialize
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super initialize.
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codePageHolder := 0 asValue.
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codePageHolder onChangeSend:#codePageChanged to:self.
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selectedCodePointHolder := ValueHolder new.
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selectedCodePointHolder onChangeSend:#selectedCodePointChanged to:self.
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! !
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2624
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!CharacterSetView methodsFor:'queries'!
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preferredExtent
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preferredExtent notNil ifTrue:[
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^ preferredExtent
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].
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^ ((4 + font width + 4) * 16)
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@
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((4 + font height + 4) * 16)
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! !
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330 |
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2620
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!CharacterSetView class methodsFor:'documentation'!
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version
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2627
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^ '$Header: /cvs/stx/stx/libwidg2/CharacterSetView.st,v 1.7 2004-02-12 15:00:19 cg Exp $'
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! !
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