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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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647
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instanceVariableNames:'columnNumber dataSet label minWidth width description form
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buttonInset buttonExtent textInset drawableAction toggleExtent
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rendererType backgroundColor foregroundColor fgSelector
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bgSelector'
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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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647
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columnNumber <Integer> sequence number (into list of columns)
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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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647
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buttonInset <Integer> top inset of a button (toggle)
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buttonExtent <Point> extent of form
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542
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textInset <Integer> top inset of a string
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647
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form <Form> a form drawn in the cell
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label <misc> cellLabel on device
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647
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drawableAction <Action> action to access the printable
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label of a cell
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rendererType <Type> renderer type derived from
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column specification.
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backgroundColor <Color or nil> background color of all cells or nil
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(nil: use default background color).
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foregroundColor <Color or nil> foreground color of all cells or nil
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(nil: use default foreground color).
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fgSelector <Selector or nil> access specific foreground color for
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a cell
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bgSelector <Selector or nil> access specific background color for
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a cell
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542
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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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!
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584
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backgroundColor
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^ backgroundColor
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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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rendererType
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"returns my renderer type
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"
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^ rendererType
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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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607
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) ifFalse:[
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self containsText 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 size.
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1 to:end do:[:aRowNr||lbl|
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lbl := self drawableAt: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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].
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width := width + buttonExtent x.
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label notNil ifTrue:[
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width := width max:((label widthOn:dataSet) + 4)
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542
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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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drawFrom:start times:nTimes x0:x0 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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655
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|lgCol dkCol fg bg lblFg lblBg lbl row colSp fH fW fE sepSz
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637
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h "{ Class:SmallInteger }"
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n "{ Class:SmallInteger }"
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y "{ Class:SmallInteger }"
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x "{ Class:SmallInteger }"
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xI "{ Class:SmallInteger }"
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542
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h := dataSet rowHeight.
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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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637
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dataSet paint:(dataSet colorOnDevice:bg).
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dataSet fillRectangleX:x0 y:yTop width:width height:(yBot - yTop - 1)
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].
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fg := foregroundColor ? fgColor.
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lgCol := dataSet hgLgFgColor.
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dkCol := dataSet hgLgBgColor.
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sepSz := dataSet separatorSize.
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y := yTop + textInset.
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x := x0 + dataSet horizontalSpacing.
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n := start.
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542
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637
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nTimes timesRepeat:[
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row := dataSet at:n.
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lbl := drawableAction value:row.
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621
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637
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(dataSet isSelected:n inColumn:columnNumber) ifTrue:[
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dataSet paint:dkCol.
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dataSet fillRectangleX:x0 y:y - textInset width:width height:(h - 2).
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542
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647
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rendererType == #rowSelector ifTrue:[
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lbl := form
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] ifFalse:[
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lbl isText ifTrue:[lbl := lbl string]
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].
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lbl notNil ifTrue:[
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dataSet paint:lgCol on:dkCol.
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lbl displayOn:dataSet x:x y:y
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542
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]
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] ifFalse:[
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621
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(bgSelector notNil and:[(lblBg := row perform:bgSelector) notNil]) ifTrue:[
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637
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dataSet paint:(lblBg := dataSet colorOnDevice:lblBg).
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dataSet fillRectangleX:x0 y:y - textInset width:width height:(h - 2).
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621
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] ifFalse:[
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lblBg := bg
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].
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lbl notNil ifTrue:[
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(fgSelector notNil and:[(lblFg := row perform:fgSelector) notNil]) ifFalse:[
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dataSet paint:fg on:lblBg.
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] ifTrue:[
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dataSet paint:(dataSet colorOnDevice:lblFg) on:lblBg.
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].
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lbl displayOn:dataSet x:x y:y
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]
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].
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y := y + h.
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n := n + 1.
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].
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(form notNil and:[rendererType ~~ #rowSelector]) ifTrue:[|xa xb xc xd|
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fE := (buttonExtent - form extent) // 2.
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fH := buttonExtent y.
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fW := buttonExtent x.
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655
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rendererType ~~ #CheckToggle ifTrue:[
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x := x0 + width - fW - 4
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] ifFalse:[
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x := x0 + (width - fW - sepSz + 1 // 2).
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].
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647
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y := yTop + buttonInset + 1.
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dataSet paint:(dataSet separatorLightColor).
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xa := x + 1.
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xb := x + 2.
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xc := x + fW - 2.
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xd := x + fW - 3.
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542
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647
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nTimes timesRepeat:[
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dataSet displayLineFromX:xa y:y toX:xc y:y.
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dataSet displayLineFromX:xa y:y + 1 toX:xd y:y + 1.
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dataSet displayLineFromX:xa y:y toX:xa y:y + fH - 3.
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dataSet displayLineFromX:xb y:y toX:xb y:y + fH - 4.
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y := y + h.
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].
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y := yTop + buttonInset.
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xI := x + fE x.
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dataSet paint:fgColor on:bgColor.
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n := start.
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637
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647
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nTimes timesRepeat:[|u|
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(u := dataSet isRowSelected:n) ifTrue:[dataSet paint:lgCol on:dkCol].
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dataSet displayRectangleX:x y:y width:fW height:fH.
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542
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647
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(rendererType ~~ #CheckToggle or:[self at:n]) ifTrue:[
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dataSet displayImage:form x:xI y:y + fE y
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].
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u ifTrue:[dataSet paint:fgColor on:bgColor].
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y := y + h.
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n := n + 1.
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637
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]
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].
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637
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"/ DRAW SEPARATORS
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x := x0 + width - 1.
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542
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655
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sepSz == 1 ifTrue:[
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637
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y := yTop.
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542
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604
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dataSet paint:fgColor.
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542
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637
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description showColSeparator ifTrue:[
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644
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dataSet displayLineFromX:x y:yTop toX:x y:yBot - 1
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542
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].
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637
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542
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description showRowSeparator ifTrue:[
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607
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y := yTop - 1.
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542
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nTimes timesRepeat:[
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637
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y := y + h.
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dataSet displayLineFromX:x0 y:y toX:x y:y
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542
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]
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637
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]
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] ifFalse:[
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dkCol := dataSet separatorDarkColor.
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lgCol := dataSet separatorLightColor.
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568
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637
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(colSp := description showColSeparator) ifTrue:[
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y := yBot - 1.
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dataSet paint:lgCol.
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dataSet displayLineFromX:x y:yTop toX:x y:y.
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x := x - 1.
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dataSet paint:dkCol.
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dataSet displayLineFromX:x y:yTop toX:x y:y.
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607
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] ifFalse:[
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637
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dataSet paint:dkCol
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607
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].
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542
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637
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description showRowSeparator ifTrue:[
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y := yTop - 2.
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x := x0 + width.
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607
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637
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colSp ifTrue:[x := x - 2].
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542
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637
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nTimes timesRepeat:[
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y := y + h.
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dataSet displayLineFromX:x0 y:y toX:x y:y.
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].
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y := yTop - 1.
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dataSet paint:lgCol.
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337 |
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nTimes timesRepeat:[
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y := y + h.
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340 |
dataSet displayLineFromX:x0 y:y toX:x y:y.
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542
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]
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607
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342 |
]
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]
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344 |
!
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345 |
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542
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346 |
invalidate
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347 |
"set to invalidate; forces a recomputation
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348 |
"
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568
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349 |
minWidth := width := nil.
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542
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350 |
|
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351 |
! !
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352 |
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614
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353 |
!DataSetColumn methodsFor:'editing'!
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354 |
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355 |
editorAt:aRowNr in:aView with:fg bg:bg
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647
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356 |
|value|
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357 |
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358 |
(value := self at:aRowNr) isText ifTrue:[value := value string].
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614
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359 |
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360 |
^ description editorOn:(dataSet at:aRowNr)
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647
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361 |
value:value
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614
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362 |
in:aView
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363 |
with:fg
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364 |
bg:bg.
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365 |
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366 |
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367 |
! !
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368 |
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542
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369 |
!DataSetColumn methodsFor:'event handling'!
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370 |
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371 |
doesNotUnderstand:aMessage
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372 |
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|
|
373 |
(description respondsTo:(aMessage selector)) ifTrue:[
|
|
|
374 |
^ aMessage sendTo:description
|
|
|
375 |
].
|
|
|
376 |
^ super doesNotUnderstand:aMessage
|
|
|
377 |
|
|
|
378 |
!
|
|
|
379 |
|
|
|
380 |
textInsetChanged:aTextInset
|
|
|
381 |
"recompute all attributes
|
|
|
382 |
"
|
|
647
|
383 |
|lbl|
|
|
542
|
384 |
|
|
647
|
385 |
self containsText ifTrue:[
|
|
542
|
386 |
textInset := dataSet verticalSpacing.
|
|
|
387 |
|
|
621
|
388 |
dataSet size ~~ 0 ifTrue:[
|
|
|
389 |
lbl := self drawableAt:1.
|
|
542
|
390 |
|
|
|
391 |
(lbl isString or:[lbl isNumber]) ifTrue:[
|
|
|
392 |
textInset := aTextInset
|
|
584
|
393 |
] ifFalse:[
|
|
|
394 |
(lbl isNil and:[description printSelector isNil]) ifTrue:[
|
|
|
395 |
textInset := aTextInset.
|
|
|
396 |
]
|
|
542
|
397 |
]
|
|
607
|
398 |
]
|
|
647
|
399 |
] ifFalse:[
|
|
|
400 |
textInset := ( (dataSet rowHeight)
|
|
|
401 |
- (form height)
|
|
|
402 |
- (dataSet separatorSize)
|
|
|
403 |
) // 2.
|
|
|
404 |
].
|
|
542
|
405 |
|
|
647
|
406 |
form isNil ifTrue:[
|
|
|
407 |
buttonInset := 0
|
|
607
|
408 |
] ifFalse:[
|
|
647
|
409 |
buttonInset := ( (dataSet rowHeight)
|
|
|
410 |
- (buttonExtent x)
|
|
|
411 |
- (dataSet separatorSize)
|
|
|
412 |
) // 2.
|
|
542
|
413 |
].
|
|
|
414 |
|
|
|
415 |
|
|
|
416 |
! !
|
|
|
417 |
|
|
|
418 |
!DataSetColumn methodsFor:'grow & degrow'!
|
|
|
419 |
|
|
|
420 |
growWidth:n
|
|
|
421 |
"grow the width for n pixels
|
|
|
422 |
"
|
|
|
423 |
width := width + n.
|
|
|
424 |
|
|
|
425 |
|
|
|
426 |
!
|
|
|
427 |
|
|
|
428 |
minWidth
|
|
|
429 |
"get my minimum width required by the entries into the column
|
|
|
430 |
"
|
|
|
431 |
^ minWidth notNil ifTrue:[minWidth] ifFalse:[self width]
|
|
|
432 |
|
|
|
433 |
|
|
|
434 |
!
|
|
|
435 |
|
|
|
436 |
setMinWidth
|
|
|
437 |
"set the width to the required width. returns the psitive delta width
|
|
|
438 |
"
|
|
|
439 |
|deltaX|
|
|
|
440 |
|
|
|
441 |
deltaX := width - minWidth.
|
|
|
442 |
width := minWidth.
|
|
|
443 |
^ deltaX.
|
|
|
444 |
|
|
|
445 |
|
|
|
446 |
! !
|
|
|
447 |
|
|
|
448 |
!DataSetColumn methodsFor:'initialization'!
|
|
|
449 |
|
|
607
|
450 |
on:aDSVColumnView description:aDescription columnNumber:aNumber
|
|
542
|
451 |
"instance creation; set attributes dependent on the description
|
|
|
452 |
"
|
|
647
|
453 |
|device selector format idx type|
|
|
542
|
454 |
|
|
607
|
455 |
columnNumber := aNumber.
|
|
584
|
456 |
dataSet := aDSVColumnView.
|
|
|
457 |
description := aDescription.
|
|
|
458 |
rendererType := description rendererType.
|
|
647
|
459 |
form := width := nil.
|
|
584
|
460 |
device := dataSet device.
|
|
595
|
461 |
label := description rawLabel.
|
|
637
|
462 |
drawableAction := [:aRow| nil ].
|
|
621
|
463 |
fgSelector := description foregroundSelector.
|
|
|
464 |
bgSelector := description backgroundSelector.
|
|
584
|
465 |
backgroundColor := description backgroundColor.
|
|
|
466 |
foregroundColor := description foregroundColor.
|
|
647
|
467 |
buttonExtent := 0 @ 0.
|
|
584
|
468 |
|
|
|
469 |
backgroundColor notNil ifTrue:[
|
|
|
470 |
backgroundColor := backgroundColor on:aDSVColumnView device
|
|
|
471 |
].
|
|
|
472 |
foregroundColor notNil ifTrue:[
|
|
|
473 |
foregroundColor := foregroundColor on:aDSVColumnView device
|
|
|
474 |
].
|
|
542
|
475 |
|
|
|
476 |
label isImage ifTrue:[
|
|
|
477 |
label := label onDevice:device
|
|
|
478 |
].
|
|
|
479 |
|
|
|
480 |
rendererType == #CheckToggle ifTrue:[
|
|
647
|
481 |
form := dataSet checkToggleForm.
|
|
|
482 |
buttonExtent := dataSet buttonExtent.
|
|
|
483 |
^ self
|
|
542
|
484 |
].
|
|
|
485 |
|
|
|
486 |
rendererType == #rowSelector ifTrue:[
|
|
647
|
487 |
form := dataSet rowSelectorForm.
|
|
|
488 |
buttonExtent := form extent.
|
|
|
489 |
^ self
|
|
542
|
490 |
].
|
|
|
491 |
|
|
|
492 |
(rendererType == #ComboBox or:[rendererType == #ComboList]) ifTrue:[
|
|
647
|
493 |
form := dataSet comboButtonForm.
|
|
|
494 |
buttonExtent := dataSet buttonExtent.
|
|
542
|
495 |
].
|
|
|
496 |
|
|
|
497 |
selector := description printSelector.
|
|
|
498 |
|
|
|
499 |
selector notNil ifTrue:[
|
|
621
|
500 |
drawableAction := [:aRow| aRow perform:selector with:dataSet ].
|
|
542
|
501 |
^ self
|
|
|
502 |
].
|
|
|
503 |
|
|
614
|
504 |
( (format := description formatString) notNil
|
|
|
505 |
and:[(type := description type) == #number or:[type == #numberOrNil]]
|
|
|
506 |
) ifTrue:[
|
|
542
|
507 |
"/ has a format string for number (supports only floats)
|
|
|
508 |
|
|
614
|
509 |
(idx := format indexOf:$.) ~~ 0 ifTrue:[
|
|
|
510 |
idx := format size - idx
|
|
542
|
511 |
].
|
|
614
|
512 |
format := '%0.', idx printString, 'f'.
|
|
542
|
513 |
|
|
621
|
514 |
drawableAction := [:aRow||n|
|
|
|
515 |
n := description row:aRow at:columnNumber.
|
|
|
516 |
n isReal ifTrue:[n := n asFloat printfPrintString:format].
|
|
|
517 |
n
|
|
614
|
518 |
]
|
|
621
|
519 |
] ifFalse:[ "/ default: no format string
|
|
|
520 |
drawableAction := [:aRow| description row:aRow at:columnNumber ]
|
|
614
|
521 |
]
|
|
542
|
522 |
|
|
|
523 |
|
|
|
524 |
! !
|
|
|
525 |
|
|
621
|
526 |
!DataSetColumn methodsFor:'private'!
|
|
|
527 |
|
|
|
528 |
drawableAt:aRowNr
|
|
|
529 |
"get the drawable label at an index
|
|
|
530 |
"
|
|
637
|
531 |
^ drawableAction value:(dataSet at:aRowNr)
|
|
621
|
532 |
! !
|
|
|
533 |
|
|
542
|
534 |
!DataSetColumn methodsFor:'queries'!
|
|
|
535 |
|
|
607
|
536 |
canSelect:aRowNr
|
|
|
537 |
"returns true if cell in column is selectable
|
|
|
538 |
"
|
|
|
539 |
|s|
|
|
|
540 |
|
|
|
541 |
description canSelect ifTrue:[
|
|
|
542 |
^ ((s := description selectSelector) isNil or:[(dataSet at:aRowNr) perform:s])
|
|
|
543 |
].
|
|
|
544 |
^ false
|
|
|
545 |
|
|
|
546 |
!
|
|
|
547 |
|
|
647
|
548 |
containsText
|
|
|
549 |
"returns true if text might exist
|
|
|
550 |
"
|
|
|
551 |
^ (rendererType ~~ #rowSelector and:[rendererType ~~ #CheckToggle])
|
|
|
552 |
!
|
|
|
553 |
|
|
542
|
554 |
heightOfHighestRow
|
|
|
555 |
"returns the height of the highest row in pixels
|
|
|
556 |
"
|
|
|
557 |
|hObj hMin end|
|
|
|
558 |
|
|
647
|
559 |
hMin := dataSet font heightOn:dataSet device.
|
|
|
560 |
|
|
|
561 |
form notNil ifTrue:[
|
|
|
562 |
hMin := hMin max:(buttonExtent y)
|
|
|
563 |
].
|
|
542
|
564 |
|
|
|
565 |
(hObj := description height) == 0 ifTrue:[
|
|
647
|
566 |
self containsText ifTrue:[
|
|
542
|
567 |
"/ search first none empty drawable object
|
|
621
|
568 |
end := 10 min:dataSet size.
|
|
542
|
569 |
|
|
|
570 |
1 to:end do:[:aRowNr| |lbl|
|
|
621
|
571 |
lbl := self drawableAt:aRowNr.
|
|
542
|
572 |
|
|
|
573 |
lbl notNil ifTrue:[
|
|
|
574 |
(lbl respondsTo:#heightOn:) ifTrue:[
|
|
|
575 |
hObj := lbl heightOn:dataSet
|
|
|
576 |
] ifFalse:[
|
|
|
577 |
hObj := lbl displayString heightOn:dataSet
|
|
|
578 |
].
|
|
|
579 |
^ hMin max:hObj
|
|
|
580 |
]
|
|
|
581 |
]
|
|
|
582 |
]
|
|
|
583 |
].
|
|
|
584 |
^ hMin max:hObj.
|
|
|
585 |
! !
|
|
|
586 |
|
|
|
587 |
!DataSetColumn methodsFor:'searching'!
|
|
|
588 |
|
|
|
589 |
findRowNrStartingWithChar:aChar start:start stop:stop
|
|
|
590 |
"find the first row starting at start to stop, which drawable label
|
|
|
591 |
starts with the character, aChar. The index of the detected row is
|
|
|
592 |
returned or if no row is found 0.
|
|
|
593 |
"
|
|
|
594 |
|char|
|
|
|
595 |
|
|
647
|
596 |
self containsText ifTrue:[
|
|
542
|
597 |
char := aChar asLowercase.
|
|
|
598 |
|
|
|
599 |
start to:stop do:[:aRowNr| |lbl|
|
|
621
|
600 |
lbl := self drawableAt:aRowNr.
|
|
542
|
601 |
|
|
|
602 |
lbl isString ifTrue:[
|
|
|
603 |
(lbl size ~~ 0 and:[(lbl at:1) asLowercase == char]) ifTrue:[
|
|
|
604 |
^ aRowNr
|
|
|
605 |
]
|
|
|
606 |
] ifFalse:[
|
|
|
607 |
lbl isNil ifFalse:[
|
|
|
608 |
^ 0
|
|
|
609 |
]
|
|
|
610 |
]
|
|
|
611 |
]
|
|
|
612 |
].
|
|
|
613 |
^ 0
|
|
|
614 |
|
|
|
615 |
! !
|
|
|
616 |
|
|
|
617 |
!DataSetColumn class methodsFor:'documentation'!
|
|
|
618 |
|
|
|
619 |
version
|
|
655
|
620 |
^ '$Header: /cvs/stx/stx/libwidg2/DataSetColumn.st,v 1.15 1998-01-14 06:37:38 ca Exp $'
|
|
542
|
621 |
! !
|