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542
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"
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COPYRIGHT (c) 1997 by Claus Gittinger / 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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Object subclass:#DataSetColumn
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607
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instanceVariableNames:'columnNumber dataSet label minWidth width description form form2
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formInset textInset writeSelector drawableAction backgroundColor
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584
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foregroundColor'
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607
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classVariableNames:''
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542
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poolDictionaries:''
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category:'Views-DataSet'
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!
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!DataSetColumn class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 1997 by Claus Gittinger / 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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represent one single column description of a DataSetView
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[Instance variables:]
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description <DataSetColumnSpec> the column description
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dataSet <DSVColumnView> the view it belongs to
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width <Integer> width of column
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minWidth <Integer> minimum required width by the column
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formInset <Integer> top inset of a form
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textInset <Integer> top inset of a string
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form <Form> a form drawn when a cell is unselected
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form2 <Form> a second form (used by Toggle off).
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label <misc> cellLabel on device
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[author:]
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Claus Atzkern
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[see also:]
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DataSetColumnSpec
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DSVColumnView
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DataSetView
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"
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! !
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!DataSetColumn methodsFor:'accessing'!
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at:aRowNr
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"get the value of the raw at an index, aRowNr
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"
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^ description row:(dataSet at:aRowNr) at:columnNumber
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!
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at:aRowNr put:something
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"set the value of the raw at an index, aRowNr
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"
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description row:(dataSet at:aRowNr) at:columnNumber put:something
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542
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!
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backgroundColor
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^ backgroundColor
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!
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foregroundColor
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^ foregroundColor
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!
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label
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"get the label assigned to the column
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"
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^ label
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!
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width
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"returns the width in pixels
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"
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|end|
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width notNil ifTrue:[ ^ width ]. "/ already computed
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( (width := description width) ~~ 0 "/ fixed size
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or:[(width := description minWidth) ~~ 0] "/ start size
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) ifFalse:[
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drawableAction notNil ifTrue:[
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"/ take maximum 10 entries to calculate the width;
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"/ can be resized later if neccessary
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end := 10 min:dataSet numberOfRows.
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542
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607
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1 to:end do:[:aRowNr||lbl|
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lbl := drawableAction value:aRowNr.
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542
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(lbl respondsTo:#widthOn:) ifTrue:[
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width := width max:(lbl widthOn:dataSet)
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] ifFalse:[
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lbl notNil ifTrue:[
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width := width max:(lbl displayString widthOn:dataSet)
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]
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]
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].
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description editorType ~~ #None ifTrue:[
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width := width + (dataSet font widthOn:dataSet device)
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].
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form notNil ifTrue:[
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width := width + form width
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]
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] ifFalse:[
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width := width + form2 width
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].
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label notNil ifTrue:[
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width := width max:(label widthOn:dataSet)
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].
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].
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^ width := minWidth := width + dataSet separatorSize + (2 * dataSet horizontalSpacing).
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!
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width:aWidth
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"set the width
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"
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|w|
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545
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(w := description width) ~~ 0 ifTrue:[ "/ fixed size
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width := minWidth := w
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542
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] ifFalse:[
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width := aWidth max:minWidth
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].
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! !
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!DataSetColumn methodsFor:'drawing'!
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584
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drawFrom:start to:stop yTop:yTop yBot:yBot with:fgColor and:bgColor
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542
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"redraw rows between start and stop
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"
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607
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|lgCol dkCol fg bg val drawColSep n isLast lblFg lblBg
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542
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rowHeight "{ Class:SmallInteger }"
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nTimes "{ Class:SmallInteger }"
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sepSize "{ Class:SmallInteger }"
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542
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y "{ Class:SmallInteger }"
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y1 "{ Class:SmallInteger }"
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542
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x "{ Class:SmallInteger }"
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w "{ Class:SmallInteger }"
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542
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rowHeight := dataSet rowHeight.
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nTimes := stop - start + 1.
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sepSize := dataSet separatorSize.
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542
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(bg := backgroundColor) isNil ifTrue:[
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bg := bgColor
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] ifFalse:[
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dataSet paint:bg.
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dataSet fillRectangleX:0 y:yTop width:width height:(nTimes * rowHeight - 1)
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].
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607
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(fg := foregroundColor) notNil ifTrue:[
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lgCol := fg
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] ifFalse:[
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fg := fgColor.
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lgCol := dataSet hgLgFgColor.
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].
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dkCol := dataSet hgLgBgColor.
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y := yTop + textInset.
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x := dataSet horizontalSpacing.
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val := nil.
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542
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start to:stop do:[:i|
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(dataSet isSelected:i inColumn:columnNumber) ifTrue:[
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dataSet paint:dkCol.
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dataSet fillRectangleX:0 y:(y - textInset) width:width height:(rowHeight - 1 - sepSize).
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lblFg := lgCol.
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lblBg := dkCol.
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542
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description rendererType == #rowSelector ifTrue:[
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val := form2
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542
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]
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] ifFalse:[
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lblFg := fg.
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lblBg := bg.
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].
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(val notNil or:[drawableAction notNil and:[(val := drawableAction value:i) notNil]]) ifTrue:[
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val isText ifTrue:[
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lblFg := self extractForegrounColorFromText:val ifAbsent:lblFg.
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].
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dataSet paint:lblFg on:lblBg.
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val displayOn:dataSet x:x y:y.
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val := nil.
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].
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y := y + rowHeight
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].
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dataSet paint:fg on:bg.
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542
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form notNil ifTrue:[
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y := yTop + formInset.
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x := width - form width - sepSize.
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542
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form2 isNil ifTrue:[
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nTimes timesRepeat:[
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dataSet displayForm:form x:x y:y.
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y := y + rowHeight.
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]
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] ifFalse:[
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x := x // 2.
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start to:stop do:[:i|
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val := (self at:i) == false ifTrue:[form2] ifFalse:[form].
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dataSet displayForm:val x:x y:y.
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y := y + rowHeight.
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]
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].
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].
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"/ ************************** DRAW SEPARATORS **************************
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drawColSep := description showColSeparator.
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w := width - 1.
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542
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sepSize == 1 ifTrue:[
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dataSet paint:fgColor.
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542
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drawColSep ifTrue:[
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dataSet displayLineFromX:w y:yTop toX:w y:yBot
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].
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description showRowSeparator ifTrue:[
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y := yTop - 1.
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542
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nTimes timesRepeat:[
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y := y + rowHeight.
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dataSet displayLineFromX:0 y:y toX:w y:y.
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542
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]
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].
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^ self
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].
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"/ draw 3D separators
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dkCol := dataSet separatorDarkColor.
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lgCol := dataSet separatorLightColor.
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drawColSep ifTrue:[
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dataSet paint:lgCol.
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y := yBot - 1. dataSet displayLineFromX:w y:yTop toX:w y:y.
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w := w - 1. dataSet displayLineFromX:w y:yTop toX:w y:y.
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542
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dataSet paint:dkCol.
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y := y - 1.
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w := w - 1. dataSet displayLineFromX:w y:yTop toX:w y:y.
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w := w - 1. dataSet displayLineFromX:w y:yTop toX:w y:y.
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w := width - 1.
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isLast := dataSet lastColumn == self.
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].
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description showRowSeparator ifTrue:[
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607
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drawColSep ifTrue:[
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n := w - 2
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] ifFalse:[
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n := w.
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].
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dataSet paint:lgCol.
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y := yTop - 1.
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542
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nTimes timesRepeat:[
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y := y + rowHeight.
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y1 := y - 1.
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dataSet displayLineFromX:0 y:y toX:w y:y.
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dataSet displayLineFromX:0 y:y1 toX:w y:y1.
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].
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542
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607
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dataSet paint:dkCol.
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y := yTop.
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nTimes timesRepeat:[
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y := y + rowHeight.
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y1 := y - 4. dataSet displayLineFromX:0 y:y1 toX:n y:y1.
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y1 := y - 3. dataSet displayLineFromX:0 y:y1 toX:n y:y1.
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542
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607
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drawColSep ifTrue:[
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dataSet displayPointX:n y:y - 1.
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isLast ifFalse:[
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dataSet displayPointX:w y:y1
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]
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542
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]
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607
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].
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dataSet size == stop ifTrue:[
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dataSet paint:lgCol.
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dataSet displayPointX:n y:y - 1.
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]
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]
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!
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317 |
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extractForegrounColorFromText:aText ifAbsent:aDefColor
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319 |
"extract foreground color from a text object; if no color
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detected, the default color is returned.
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"
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|run color|
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run := aText emphasis.
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325 |
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run size == 0 ifFalse:[
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run := run first.
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run size == 0 ifTrue:[
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(color := run value) isColor ifTrue:[^ color]
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542
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] ifFalse:[
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607
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run do:[:r| (color := r value) isColor ifTrue:[^ color]]
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542
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]
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].
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607
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^ aDefColor
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542
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336 |
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!
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invalidate
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"set to invalidate; forces a recomputation
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"
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568
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minWidth := width := nil.
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542
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343 |
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344 |
! !
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345 |
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614
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346 |
!DataSetColumn methodsFor:'editing'!
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347 |
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editorAt:aRowNr in:aView with:fg bg:bg
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349 |
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^ description editorOn:(dataSet at:aRowNr)
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value:(self at:aRowNr)
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in:aView
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with:fg
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bg:bg.
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355 |
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356 |
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357 |
! !
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358 |
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542
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359 |
!DataSetColumn methodsFor:'event handling'!
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360 |
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361 |
doesNotUnderstand:aMessage
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362 |
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363 |
(description respondsTo:(aMessage selector)) ifTrue:[
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^ aMessage sendTo:description
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365 |
].
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366 |
^ super doesNotUnderstand:aMessage
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367 |
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368 |
!
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369 |
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370 |
textInsetChanged:aTextInset
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371 |
"recompute all attributes
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372 |
"
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607
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373 |
|lbl img|
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542
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374 |
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375 |
drawableAction notNil ifTrue:[
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376 |
textInset := dataSet verticalSpacing.
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377 |
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378 |
dataSet numberOfRows ~~ 0 ifTrue:[
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379 |
lbl := drawableAction value:1.
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380 |
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381 |
(lbl isString or:[lbl isNumber]) ifTrue:[
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382 |
textInset := aTextInset
|
|
584
|
383 |
] ifFalse:[
|
|
|
384 |
(lbl isNil and:[description printSelector isNil]) ifTrue:[
|
|
|
385 |
textInset := aTextInset.
|
|
|
386 |
]
|
|
542
|
387 |
]
|
|
607
|
388 |
]
|
|
|
389 |
].
|
|
542
|
390 |
|
|
607
|
391 |
(img := form2 ? form) isNil ifTrue:[
|
|
|
392 |
formInset := 0
|
|
|
393 |
] ifFalse:[
|
|
|
394 |
formInset := ( (dataSet rowHeight)
|
|
|
395 |
- img height
|
|
|
396 |
- (dataSet separatorSize)
|
|
|
397 |
) // 2.
|
|
|
398 |
|
|
|
399 |
drawableAction isNil ifTrue:[
|
|
|
400 |
textInset := formInset
|
|
|
401 |
]
|
|
542
|
402 |
].
|
|
|
403 |
|
|
|
404 |
|
|
|
405 |
! !
|
|
|
406 |
|
|
|
407 |
!DataSetColumn methodsFor:'grow & degrow'!
|
|
|
408 |
|
|
|
409 |
growWidth:n
|
|
|
410 |
"grow the width for n pixels
|
|
|
411 |
"
|
|
|
412 |
width := width + n.
|
|
|
413 |
|
|
|
414 |
|
|
|
415 |
!
|
|
|
416 |
|
|
|
417 |
minWidth
|
|
|
418 |
"get my minimum width required by the entries into the column
|
|
|
419 |
"
|
|
|
420 |
^ minWidth notNil ifTrue:[minWidth] ifFalse:[self width]
|
|
|
421 |
|
|
|
422 |
|
|
|
423 |
!
|
|
|
424 |
|
|
|
425 |
setMinWidth
|
|
|
426 |
"set the width to the required width. returns the psitive delta width
|
|
|
427 |
"
|
|
|
428 |
|deltaX|
|
|
|
429 |
|
|
|
430 |
deltaX := width - minWidth.
|
|
|
431 |
width := minWidth.
|
|
|
432 |
^ deltaX.
|
|
|
433 |
|
|
|
434 |
|
|
|
435 |
! !
|
|
|
436 |
|
|
|
437 |
!DataSetColumn methodsFor:'initialization'!
|
|
|
438 |
|
|
607
|
439 |
on:aDSVColumnView description:aDescription columnNumber:aNumber
|
|
542
|
440 |
"instance creation; set attributes dependent on the description
|
|
|
441 |
"
|
|
614
|
442 |
|rendererType device selector format idx type|
|
|
542
|
443 |
|
|
607
|
444 |
columnNumber := aNumber.
|
|
584
|
445 |
dataSet := aDSVColumnView.
|
|
|
446 |
description := aDescription.
|
|
|
447 |
rendererType := description rendererType.
|
|
|
448 |
form := width := form2 := nil.
|
|
|
449 |
device := dataSet device.
|
|
595
|
450 |
label := description rawLabel.
|
|
584
|
451 |
drawableAction := nil.
|
|
|
452 |
backgroundColor := description backgroundColor.
|
|
|
453 |
foregroundColor := description foregroundColor.
|
|
|
454 |
|
|
|
455 |
backgroundColor notNil ifTrue:[
|
|
|
456 |
backgroundColor := backgroundColor on:aDSVColumnView device
|
|
|
457 |
].
|
|
|
458 |
foregroundColor notNil ifTrue:[
|
|
|
459 |
foregroundColor := foregroundColor on:aDSVColumnView device
|
|
|
460 |
].
|
|
542
|
461 |
|
|
|
462 |
label isImage ifTrue:[
|
|
|
463 |
label := label onDevice:device
|
|
|
464 |
].
|
|
|
465 |
|
|
|
466 |
rendererType == #CheckToggle ifTrue:[
|
|
607
|
467 |
form := dataSet toggleOnButton.
|
|
|
468 |
form2 := dataSet toggleOffButton.
|
|
542
|
469 |
^ self
|
|
|
470 |
].
|
|
|
471 |
|
|
|
472 |
rendererType == #rowSelector ifTrue:[
|
|
607
|
473 |
form2 := dataSet rowSelectorButton.
|
|
542
|
474 |
^ self
|
|
|
475 |
].
|
|
|
476 |
|
|
|
477 |
(rendererType == #ComboBox or:[rendererType == #ComboList]) ifTrue:[
|
|
607
|
478 |
form := dataSet comboViewButton.
|
|
542
|
479 |
].
|
|
|
480 |
|
|
|
481 |
selector := description printSelector.
|
|
|
482 |
|
|
|
483 |
selector notNil ifTrue:[
|
|
|
484 |
drawableAction := [:aRowNr|
|
|
614
|
485 |
(dataSet at:aRowNr) perform:selector with:dataSet
|
|
542
|
486 |
].
|
|
|
487 |
^ self
|
|
|
488 |
].
|
|
|
489 |
|
|
614
|
490 |
( (format := description formatString) notNil
|
|
|
491 |
and:[(type := description type) == #number or:[type == #numberOrNil]]
|
|
|
492 |
) ifTrue:[
|
|
542
|
493 |
"/ has a format string for number (supports only floats)
|
|
|
494 |
|
|
614
|
495 |
(idx := format indexOf:$.) ~~ 0 ifTrue:[
|
|
|
496 |
idx := format size - idx
|
|
542
|
497 |
].
|
|
614
|
498 |
format := '%0.', idx printString, 'f'.
|
|
542
|
499 |
|
|
|
500 |
drawableAction := [:aRowNr||num|
|
|
614
|
501 |
(num := self at:aRowNr) isReal ifTrue:[
|
|
|
502 |
num := num asFloat printfPrintString:format.
|
|
542
|
503 |
].
|
|
|
504 |
num
|
|
614
|
505 |
]
|
|
|
506 |
] ifFalse:[ "/ default: no format string
|
|
|
507 |
drawableAction := [:aRowNr| self at:aRowNr ]
|
|
|
508 |
]
|
|
542
|
509 |
|
|
|
510 |
|
|
|
511 |
! !
|
|
|
512 |
|
|
|
513 |
!DataSetColumn methodsFor:'queries'!
|
|
|
514 |
|
|
607
|
515 |
canSelect:aRowNr
|
|
|
516 |
"returns true if cell in column is selectable
|
|
|
517 |
"
|
|
|
518 |
|s|
|
|
|
519 |
|
|
|
520 |
description canSelect ifTrue:[
|
|
|
521 |
^ ((s := description selectSelector) isNil or:[(dataSet at:aRowNr) perform:s])
|
|
|
522 |
].
|
|
|
523 |
^ false
|
|
|
524 |
|
|
|
525 |
!
|
|
|
526 |
|
|
542
|
527 |
heightOfHighestRow
|
|
|
528 |
"returns the height of the highest row in pixels
|
|
|
529 |
"
|
|
|
530 |
|hObj hMin end|
|
|
|
531 |
|
|
|
532 |
hMin := (form ? dataSet font) heightOn:dataSet device.
|
|
|
533 |
|
|
|
534 |
(hObj := description height) == 0 ifTrue:[
|
|
|
535 |
drawableAction notNil ifTrue:[
|
|
|
536 |
"/ search first none empty drawable object
|
|
|
537 |
end := 10 min:dataSet numberOfRows.
|
|
|
538 |
|
|
|
539 |
1 to:end do:[:aRowNr| |lbl|
|
|
|
540 |
lbl := drawableAction value:aRowNr.
|
|
|
541 |
|
|
|
542 |
lbl notNil ifTrue:[
|
|
|
543 |
(lbl respondsTo:#heightOn:) ifTrue:[
|
|
|
544 |
hObj := lbl heightOn:dataSet
|
|
|
545 |
] ifFalse:[
|
|
|
546 |
hObj := lbl displayString heightOn:dataSet
|
|
|
547 |
].
|
|
|
548 |
^ hMin max:hObj
|
|
|
549 |
]
|
|
|
550 |
]
|
|
|
551 |
]
|
|
|
552 |
].
|
|
|
553 |
^ hMin max:hObj.
|
|
|
554 |
! !
|
|
|
555 |
|
|
|
556 |
!DataSetColumn methodsFor:'searching'!
|
|
|
557 |
|
|
|
558 |
findRowNrStartingWithChar:aChar start:start stop:stop
|
|
|
559 |
"find the first row starting at start to stop, which drawable label
|
|
|
560 |
starts with the character, aChar. The index of the detected row is
|
|
|
561 |
returned or if no row is found 0.
|
|
|
562 |
"
|
|
|
563 |
|char|
|
|
|
564 |
|
|
|
565 |
drawableAction notNil ifTrue:[
|
|
|
566 |
char := aChar asLowercase.
|
|
|
567 |
|
|
|
568 |
start to:stop do:[:aRowNr| |lbl|
|
|
|
569 |
lbl := drawableAction value:aRowNr.
|
|
|
570 |
|
|
|
571 |
lbl isString ifTrue:[
|
|
|
572 |
(lbl size ~~ 0 and:[(lbl at:1) asLowercase == char]) ifTrue:[
|
|
|
573 |
^ aRowNr
|
|
|
574 |
]
|
|
|
575 |
] ifFalse:[
|
|
|
576 |
lbl isNil ifFalse:[
|
|
|
577 |
^ 0
|
|
|
578 |
]
|
|
|
579 |
]
|
|
|
580 |
]
|
|
|
581 |
].
|
|
|
582 |
^ 0
|
|
|
583 |
|
|
|
584 |
! !
|
|
|
585 |
|
|
|
586 |
!DataSetColumn class methodsFor:'documentation'!
|
|
|
587 |
|
|
|
588 |
version
|
|
614
|
589 |
^ '$Header: /cvs/stx/stx/libwidg2/DataSetColumn.st,v 1.10 1997-11-12 16:27:30 ca Exp $'
|
|
542
|
590 |
! !
|