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"
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COPYRIGHT (c) 1989 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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ModalBox subclass:#InfoBox
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instanceVariableNames:'formLabel textLabel buttonPanel okButton okAction
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acceptReturnAsOK'
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classVariableNames:'InfoBitmap'
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poolDictionaries:''
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category:'Views-DialogBoxes'
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!
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InfoBox comment:'
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COPYRIGHT (c) 1989 by Claus Gittinger
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All Rights Reserved
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$Header: /cvs/stx/stx/libwidg/InfoBox.st,v 1.6 1994-08-07 13:22:40 claus Exp $
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written Spring/Summer 89 by claus
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'!
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!InfoBox class methodsFor:'documentation'!
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documentation
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"
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this class implements a pop-up box to show an information message.
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It has a single ok-Button, which closes the box.
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Also entering return has (by default) the same effect as pressing
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the ok-button.
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InfoBox is a superclass of some other boxes - see WaringBox, YesNoBox etc.
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They are created with:
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aBox := InfoBox title:'some title'.
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and shown with:
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aBox showAtPointer
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The default box shows 'yes' in its button; this can be changed with:
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aBox okText:'some string'.
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the boxes bitmap-image can be changed with:
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aBox form:aForm
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(the name 'form:' is historical - any bitmap or image is allowed).
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Examples:
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|aBox|
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aBox := InfoBox title:'a simple Info'.
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aBox showAtPointer.
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|aBox|
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aBox := InfoBox title:'a simple Info'.
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aBox showAt:0@0.
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|aBox|
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aBox := InfoBox title:'a simple Info'.
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aBox acceptReturnAsOK:false.
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aBox showAtPointer.
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|aBox|
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aBox := InfoBox title:'Press ''YES'' to continue\(or type return)' withCRs.
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aBox okText:'YES'.
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aBox showAtPointer.
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|aBox|
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aBox := InfoBox title:'another one'.
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aBox form:(Form fromFile:'SBrowser.xbm').
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aBox showAtPointer
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|aBox|
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aBox := InfoBox title:'a nice one'.
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aBox form:(Image fromFile:'bitmaps/garfield.gif').
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aBox showAtPointer
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|aBox|
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aBox := InfoBox title:'a nice one'.
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aBox form:((Image fromFile:'bitmaps/garfield.gif') magnifyBy:0.3@0.3).
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aBox showAtPointer
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|aBox|
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aBox := InfoBox title:'a nice one'.
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aBox form:((Image fromFile:'bitmaps/garfield.gif') magnifyBy:0.3@0.3).
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aBox formLabel level:-1.
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aBox showAtPointer
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|aBox|
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aBox := InfoBox title:'a nice one'.
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aBox form:((Image fromFile:'bitmaps/garfield.gif') magnifyBy:0.3@0.3).
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aBox formLabel borderWidth:2.
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aBox formLabel borderColor:Color red.
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aBox showAtPointer
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|aBox|
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aBox := InfoBox title:'start printing'.
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aBox form:(Image fromFile:'bitmaps/ljet3.xpm').
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aBox formLabel level:-2.
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aBox okText:'print'.
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aBox showAtPointer
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"
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! !
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!InfoBox class methodsFor:'instance creation'!
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title:titleString
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"create a new infoBox with title, aTitleString"
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^ (self new) title:titleString
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! !
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!InfoBox methodsFor:'initialization'!
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initialize
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super initialize.
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acceptReturnAsOK := true.
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formLabel := Label in:self.
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self initFormBitmap.
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formLabel borderWidth:0.
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formLabel origin:(ViewSpacing @ ViewSpacing).
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textLabel := Label label:'Information' in:self.
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textLabel borderWidth:0.
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"
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textLabel origin:((ViewSpacing + formLabel width + ViewSpacing) @ ViewSpacing).
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"
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textLabel origin:[(ViewSpacing + formLabel widthIncludingBorder + ViewSpacing) @ ViewSpacing].
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okButton := Button
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label:(resources at:'ok')
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action:[
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okButton turnOffWithoutRedraw.
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self okPressed
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]
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in:self.
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okButton isReturnButton:true.
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okButton origin:[((width - okButton width) // 2)
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@
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(height - ViewSpacing - okButton heightIncludingBorder" - okButton borderWidth")].
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!
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initFormBitmap
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"setup the bitmap shown in the upper left -
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extracted into a separate method for easier redefinition
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in subclasses"
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InfoBitmap isNil ifTrue:[
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InfoBitmap := Form fromFile:'Information.xbm' resolution:100 on:Display
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].
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formLabel form:InfoBitmap
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!InfoBox methodsFor:'realization'!
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positionOffset
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"return the delta, by which the box should be displayed
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from the mouse pointer. Value returned here makes center of
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okButton appear under the cursor"
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^ (okButton originRelativeTo:self) + (okButton extent // 2)
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! !
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!InfoBox methodsFor:'accessing'!
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acceptReturnAsOK:aBoolean
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"turn on/off interpretation of return-key as ok.
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Default is on"
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acceptReturnAsOK := aBoolean.
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okButton isReturnButton:aBoolean.
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!
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form:aForm
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"define a form to be displayed left of the title
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- usually an exclamation-mark"
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formLabel form:aForm.
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formLabel resize.
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self resize
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textLabel
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"return the textLabel = can be used to change its appearance"
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^ textLabel
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formLabel
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"return the formLabel = can be used to change its appearance"
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^ formLabel
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!
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title:aString
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"set the boxes title string"
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aString ~= textLabel label ifTrue:[
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textLabel label:aString.
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textLabel resize.
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self resize
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]
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title
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"return the boxes title string"
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^ textLabel label
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okButton
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"return the okButton"
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^ okButton
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!
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okAction:aBlock
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"define the action to be performed when ok is pressed"
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okAction := aBlock
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okText:aString
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"define the text in the ok-button"
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aString ~= okButton label ifTrue:[
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okButton label:aString.
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okButton resize.
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self resize
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]
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! !
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!InfoBox methodsFor:'private'!
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resize
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"resize myself to make everything fit into myself.
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This method should be called after every change in
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the title, form-field or button(s)."
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|w h extra|
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w := ViewSpacing + formLabel widthIncludingBorder + ViewSpacing + textLabel width + ViewSpacing.
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w := w max:(okButton preferredExtent x + (ViewSpacing * 2)).
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h := ViewSpacing
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+ ((formLabel heightIncludingBorder) max:(textLabel height))
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+ ViewSpacing + ViewSpacing
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+ okButton heightIncludingBorder
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+ ViewSpacing.
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extra := 0 "margin * 2".
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super extent:(w + extra) @ (h + extra)
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! !
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!InfoBox methodsFor:'user interaction'!
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hideAndEvaluate:aBlock
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"make myself invisible and evaluate aBlock"
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self hide.
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aBlock notNil ifTrue:[aBlock value]
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!
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okPressed
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"user pressed ok-button; make myself invisible and if an action was
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specified do it"
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self hideAndEvaluate:okAction
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keyPress:aKey x:x y:y
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"return-key dublicates ok-function"
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acceptReturnAsOK ifTrue:[
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(aKey == #Return) ifTrue:[self okPressed]
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]
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! !
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