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"
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COPYRIGHT (c) 1991-93 by Claus Gittinger
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All Rights Reserved
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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View subclass:#FramedBox
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instanceVariableNames:'label layout'
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classVariableNames:''
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poolDictionaries:''
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category:'Views-Layout'
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!
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FramedBox comment:'
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COPYRIGHT (c) 1991-93 by Claus Gittinger
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All Rights Reserved
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a frame around something. The frame may have a label, whose position
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is controlled by the layout variable, aSymbol which may be one of:
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[#topCenter #topLeft #topRight #bottomLeft #bottomCenter #bottomRight]
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%W% %E%
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written spring 91 by claus
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'!
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!FramedBox methodsFor:'accessing'!
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label
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^ label
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!
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label:aString
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(label ~= aString) ifTrue:[
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label := aString.
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shown 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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!
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font:aFont
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(font ~= aFont) ifTrue:[
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super font:aFont.
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shown 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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!
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viewRectangle
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"return the inside area - redefined to save frame from
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relative computations"
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|m2 sep|
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sep := font height.
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m2 := sep + sep + sep.
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^ (sep @ sep) extent:((width - m2) @ (height - m2))
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!
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layout
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^ layout
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!
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layout:aSymbol
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"define the position of the label;
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aSymbol may be: topLeft, topCenter, topRight;
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bottomLeft, bottomCenter or bottomRight"
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layout := aSymbol.
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self clear.
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self redraw
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! !
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!FramedBox methodsFor:'events'!
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sizeChanged:how
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shown ifTrue:[
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self clear.
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self redraw
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].
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super sizeChanged:how
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! !
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!FramedBox methodsFor:'drawing'!
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drawFrame
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"redraw the frame"
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|sep halfSep right bot left top bm1 rm3|
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sep := font height.
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halfSep := sep // 2.
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self is3D ifFalse:[
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self drawRectangleX:halfSep y:halfSep
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width:(width - sep) height:(height - sep).
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^ self
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].
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self paint:lightColor.
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right := width - halfSep.
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bot := height - halfSep.
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self drawRectangleX:halfSep y:halfSep
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width:(width - sep) height:(height - sep + 1).
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self paint:shadowColor.
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left := halfSep - 1.
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top := halfSep - 1.
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bm1 := bot - 1.
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self displayLineFromX:left y:top
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toX:(right - 1) y:top.
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self displayLineFromX:left y:top
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toX:left y:bm1.
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rm3 := right - 3.
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self displayLineFromX:rm3 y:(halfSep + 1)
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toX:rm3 y:bm1.
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self displayLineFromX:(halfSep + 2) y:(bot - 2)
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toX:(right - 2) y:(bot - 2)
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!
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redraw
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"redraw the frame and name if present"
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|labelLen l x y|
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label isNil ifTrue:[
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l := ' '.
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labelLen := 0
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] ifFalse:[
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l := ' ' , label , ' '.
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labelLen := font widthOf:l
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].
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self drawFrame.
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labelLen > 0 ifTrue:[
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labelLen < width ifTrue:[
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(#(topLeft topCenter topRight) includes:layout) ifTrue:[
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y := font ascent.
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] ifFalse:[
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y := height - font descent.
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].
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(#(topLeft bottomLeft) includes:layout) ifTrue:[
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x := font height
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] ifFalse:[
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(#(topRight bottomRight) includes:layout) ifTrue:[
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x := width - labelLen - font height
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] ifFalse:[
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x := (width - labelLen) // 2
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]
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].
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self background:viewBackground.
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self displayOpaqueString:l x:x y:y
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]
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]
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! !
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!FramedBox methodsFor:'initialization'!
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initStyle
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"default position is top-center, except for ms-windows, where
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the text is positioned at top-left"
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super initStyle.
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style == #mswindows ifTrue:[
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layout := #topLeft
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] ifFalse:[
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layout := #topCenter
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]
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! !
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