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"
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COPYRIGHT (c) 1991 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 fgColor showFrame'
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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 by Claus Gittinger
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All Rights Reserved
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$Header: /cvs/stx/stx/libwidg/FramedBox.st,v 1.7 1994-08-07 13:21:57 claus Exp $
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'!
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!FramedBox class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 1991 by Claus Gittinger
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All Rights Reserved
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38
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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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version
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"
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$Header: /cvs/stx/stx/libwidg/FramedBox.st,v 1.7 1994-08-07 13:21:57 claus Exp $
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"
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!
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documentation
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"
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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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Its also possible, to not show the frame but only the label, by setting
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showFrame to false.
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"
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! !
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!FramedBox methodsFor:'private'!
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redrawIfShown
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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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!FramedBox methodsFor:'accessing'!
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foregroundColor
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"return the frame labels foreground color"
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^ fgColor
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!
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foregroundColor:aColor
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"set the frame labels foreground color"
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aColor ~= fgColor ifTrue:[
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fgColor := aColor.
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self redrawIfShown
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]
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!
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frameShown
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"return true, if frame is shown;
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if false, oly the label is shown"
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^ showFrame
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!
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showFrame:aBoolean
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"turn on/off showing of the frame -
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without a frame, only the label is shown at its position"
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aBoolean ~~ showFrame ifTrue:[
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showFrame := aBoolean.
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self redrawIfShown
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]
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!
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label
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"return the frames labelstring"
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^ label
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!
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label:aString
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"set the frames labelstring"
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(label ~= aString) ifTrue:[
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label := aString.
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self redrawIfShown
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]
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!
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font:aFont
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"set the frame labelstrings font"
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(font ~= aFont) ifTrue:[
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super font:aFont.
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self redrawIfShown
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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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showFrame ifFalse:[
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^ (0 @ sep) extent:(width @ height)
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].
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^ (sep @ sep) extent:((width - sep) @ (height - sep))
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"/ WRONG:
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"/ ^ (sep @ sep) extent:((width - m2) @ (height - m2))
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layout
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"return the current layout, which is a symbol describing
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the labels position."
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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 ifTrue:[
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layout := aSymbol.
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self redrawIfShown
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]
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! !
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!FramedBox methodsFor:'events'!
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sizeChanged:how
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self redrawIfShown.
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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 w h|
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"
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if there is no label, give more real estate to the inside
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"
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label isNil ifTrue:[
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sep := 4.
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halfSep := 2
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] ifFalse:[
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halfSep := font height // 2.
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sep := halfSep * 2.
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"
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sep := font height.
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halfSep := sep // 2.
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"
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].
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w := width - sep.
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h := height - sep.
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((style == #normal) or:[style == #mswindows]) ifTrue:[
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self displayRectangleX:halfSep
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y:halfSep
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width:w
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height:h.
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^ self
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].
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w := w + 1.
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h := h + 1.
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self paint:shadowColor.
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self displayRectangleX:halfSep-1
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y:halfSep-1
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width:w
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height:h.
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self paint:lightColor.
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self displayRectangleX:halfSep
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y:halfSep
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width:w
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height:h
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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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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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showFrame ifTrue:[
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self drawFrame.
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].
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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 paint:fgColor on: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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initialize
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super initialize.
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showFrame := true
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!
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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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fgColor := Black.
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((style == #mswindows) or:[style == #motif]) 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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