"

 COPYRIGHT (c) 1989 by Claus Gittinger

              All Rights Reserved

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

"

"{ Package: 'stx:libwidg' }"

"{ NameSpace: Smalltalk }"

ListView subclass:#TextView

!

!TextView class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 1989 by Claus Gittinger

              All Rights Reserved

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

"

!

documentation

"

    a view for readOnly text - this class adds selections to a simple list.

    The text is not editable and there is no cursor.

    Use TextViews for readonly text, EditTextView for editable text.

    Please read the historic notice in the ListView class.

    [Instance variables:]

      selectionStartLine      <Number>                the line of the selection start (or nil)

      selectionStartCol       <Number>                the col of the selection start

      selectionEndLine        <Number>                the line of the selection end

      selectionEndCol         <Number>                the col of the selection end

      clickStartLine          <Number>                temporary - remember where select operation started

      clickStartCol           <Number>                temporary

      clickLine               <Number>                temporary

      clickCol                <Number>                temporary

      clickCount              <Number>                temporary

      expandingTop            <Boolean>               temporary - for expandSelection

      selectionFgColor        <Color>                 color used to draw selections

      selectionBgColor        <Color>                 color used to draw selections

      selectStyle             <Symbol>                how words are selected

      directoryForFileDialog  <nil|pathName>          directory where save dialog should start

      contentsWasSaved        <Boolean>               set to true, whenever saved in a file

      externalEncoding        <Symbol|nil>            external encoding, used when text is saved to

                                                      a file. Usually something like

                                                      #jis7, #euc, #sjis etc.

                                                      (currently only passed down from the

                                                       fileBrowser)

      dropSource              <DropSource>            drag operation descriptor or nil (dragging disabled)

      dragIsActive            <Boolean>               true, drag operation is activated

      searchAction            <Block>                 an autosearch action; typically set by the browser.

                                                      Will be used as default when searchFwd/searchBwd is

                                                      pressed. If the searchPattern is changed, no autosearch

                                                      action will be executed.

      searchBarActionBlock    <Block>                 search action block for embedded search

                                                      panel. Used as second chance for searchFwd/bwd

    [class variables:]

        ST80Selections        <Boolean>               enables ST80 style doubleclick behavior

                                                      (right after opening parenthesis, right before

                                                       closing parenthesis, at begin of a line

                                                       at begin of text)

    [StyleSheet parameters:]

      textView.background                       defaults to viewBackground

      textView.ViewFont                         defaults to textFont

      text.st80Selections                       st80 behavior (click on char after parent or quote)

      text.selectionForegroundColor             defaults to textBackgroundColor

      text.selectionBackgroundColor             defaults to textForegroundColor

      text.alternativeSelectionForegroundColor  pasted text (i.e. paste will not replace)

                                                defaults to selectionForegroundColor

      text.alternativeSelectionBackgroundColor  pasted text (i.e. paste will not replace)

                                                defaults to selectionBackgroundColor

    [author:]

        Claus Gittinger

    [see also:]

        EditTextView CodeView Workspace

"

!

examples

"

    although textViews (and instances of subclasses) are mostly used

    as components (in the fileBrowser, the browser, the launcher etc.),

    they may also be opened as a textEditor. Notice, that usually,

    instances of one of my subclasses (EditTextView, TextCollector, Workspace)

    are actually used.

    open a (readonly) textView on some information text:

                                                        [exBegin]

        TextView

            openWith:'read this'

            title:'demonstration'

                                                        [exEnd]

    the same, but open it modal:

                                                        [exBegin]

        TextView

            openModalWith:'read this first'

            title:'demonstration'

                                                        [exEnd]

    open it modal (but editable) on some text:

    (must accept before closing)

    This is somewhat kludgy - when closed, the view has already

    nilled its link to the model. Therefore, the accept must be

    done 'manually' below.

    However, usually an applicationModel is installed as the

    editor-topViews application. This would get a closeRequest,

    where it could handle things.

                                                        [exBegin]

        |m textView|

        m := 'read this first' asValue.

        textView := EditTextView openModalOnModel:m.

        textView modified ifTrue:[

            (self confirm:'text was not accepted - do it now ?')

            ifTrue:[

                m value:textView contents

            ]

        ].

        Transcript showCR:m value.

                                                        [exEnd]

    open a textEditor on some file:

                                                        [exBegin]

        EditTextView openOn:'Makefile'

                                                        [exEnd]

    configuring the TextView to NOT expand tabs and scan for special lines

    (to avoid reading all lines, when usig a virtualArray)

                                                        [exBegin]

        |a m|

        a := VirtualArray new

                setSize:100000000;

                generator:[:lNr | Transcript show:'called for '; showCR:lNr.

                                  'this is line: ',lNr printString ].

        m := a asValue.

        (ScrollableView forView:TextView new)

            expandTabsWhenUpdating:false;

            checkLineEndConventionWhenUpdating:false;

            model:m;

            open; inspect.

                                                        [exEnd]

"

! !

!TextView class methodsFor:'instance creation'!

on:aModel aspect:aspect change:change menu:menu initialSelection:initial

    "for ST-80 compatibility"

    ^ (self new)

        on:aModel

        aspect:aspect

        list:aspect

        change:change

        menu:menu

        initialSelection:initial

!

with:someText

    ^ (self new)

        contents:someText

! !

!TextView class methodsFor:'class initialization'!

initialize

    DefaultParenthesisSpecification isNil ifTrue:[

        DefaultParenthesisSpecification := IdentityDictionary new.

        DefaultParenthesisSpecification at:#open        put:#( $( $[ ${ "$> $<") .

        DefaultParenthesisSpecification at:#close       put:#( $) $] $} "$> $<").

        DefaultParenthesisSpecification at:#ignore      put:#( $' $" '$[' '$]' '${' '$)' ).

        DefaultParenthesisSpecification at:#eolComment  put:'"/'.     "/ sigh - must be 2 characters

    ].

! !

!TextView class methodsFor:'defaults'!

defaultIcon

    "return the default icon if started as a topView"

    <resource: #programImage>

    <resource: #style (#ICON #ICON_FILE)>

    |nm i|

    i := self classResources at:'ICON' default:nil.

    i isNil ifTrue:[

        nm := ClassResources at:'ICON_FILE' default:'Editor.xbm'.

        i := Smalltalk imageFromFileNamed:nm forClass:self.

    ].

    i notNil ifTrue:[

        i := i onDevice:Display

    ].

    ^ i

    "Modified: / 17-09-2007 / 11:36:29 / cg"

!

defaultMenuMessage

    "This message is the default yo be sent to the menuHolder to get a menu"

    ^ #editMenu

    "Created: 3.1.1997 / 01:52:21 / stefan"

!

defaultParenthesisSpecification

    ^ DefaultParenthesisSpecification

    "Created: / 14-06-2011 / 14:00:59 / cg"

!

defaultSelectionBackgroundColor

    "return the default selection background color"

    ^DefaultSelectionBackgroundColor

!

defaultSelectionForegroundColor

    "return the default selection foreground color"

    ^DefaultSelectionForegroundColor

!

defaultViewBackgroundColor

    "return the default view background"

    ^DefaultViewBackground

!

lastSearchIgnoredCase

    ^ LastSearchIgnoredCase

!

lastSearchWasMatch

    ^ LastSearchWasMatch

!

st80SelectMode

    ^ UserPreferences current st80SelectMode

    "Modified: / 03-07-2006 / 16:26:44 / cg"

!

st80SelectMode:aBoolean

    UserPreferences current st80SelectMode:aBoolean

    "Created: / 07-01-1999 / 13:35:24 / cg"

    "Modified: / 03-07-2006 / 16:27:01 / cg"

!

updateStyleCache

    "extract values from the styleSheet and cache them in class variables"

    <resource: #style (#'textView.background'

                       #'text.selectionForegroundColor'

                       #'text.selectionBackgroundColor'

                       #'text.alternativeSelectionForegroundColor'

                       #'text.alternativeSelectionBackgroundColor'

                       #'textView.font'

                       #'text.wordSelectCatchesBlanks'

                       #'text.st80Selections')>

    DefaultViewBackground := StyleSheet colorAt:'textView.background' default:Color white.

    DefaultSelectionForegroundColor := StyleSheet colorAt:'text.selectionForegroundColor'.

    DefaultSelectionBackgroundColor := StyleSheet colorAt:'text.selectionBackgroundColor'.

"/    DefaultAlternativeSelectionForegroundColor := StyleSheet colorAt:'text.alternativeSelectionForegroundColor' default:DefaultSelectionForegroundColor.

"/    DefaultAlternativeSelectionBackgroundColor := StyleSheet colorAt:'text.alternativeSelectionBackgroundColor' default:DefaultSelectionBackgroundColor.

    DefaultAlternativeSelectionForegroundColor := DefaultSelectionForegroundColor.

    DefaultAlternativeSelectionBackgroundColor := DefaultSelectionBackgroundColor.

    DefaultFont := StyleSheet fontAt:'textView.font'.

    MatchDelayTime := 0.6.

    WordSelectCatchesBlanks := StyleSheet at:'text.wordSelectCatchesBlanks' default:false.

    "Modified: / 03-07-2006 / 16:29:42 / cg"

! !

!TextView class methodsFor:'help specs'!

flyByHelpSpec

    "This resource specification was automatically generated

     by the UIHelpTool of ST/X."

    "Do not manually edit this!! If it is corrupted,

     the UIHelpTool may not be able to read the specification."

    "

     UIHelpTool openOnClass:TextView

    "

    <resource: #help>

    ^ Dictionary new addPairsFrom:#(

#matchSearch

'Search for a pattern (GLOB) as opposed to a direct string search'

#searchCaseSensitive

'Care for case differences'

#searchFullWord

'Search only for full words (ignore occurrences in substring)'

#searchAtBeginOfLineOnly

'Search only for the string at the beginning of a line'

#searchPattern

'String or match-pattern to be searched'

#searchVariable

'Search only for that variable name (ignore occurrences in other contexts)'

#replaceText

'If checked, matching text is replaced by this'

#selectLines

'If checked, lines containing the matched string are selected.'

#replacePreserveCase

'Preserve the title case of replaced text'

#replaceAll

'Search and replace all occurrences of the searched string'

#searchWithWrap

'Wrap around at the end of the text, and continue the search from the top'

#matchWithRegex

'Use regex pattern for search (as opposed to GLOB pattern)'

)

! !

!TextView class methodsFor:'interface specs'!

searchDialogSpec

    "This resource specification was automatically generated

     by the UIPainter of ST/X."

    "Do not manually edit this!! If it is corrupted,

     the UIPainter may not be able to read the specification."

    "

     UIPainter new openOnClass:TextView andSelector:#searchDialogSpec

    "

    <resource: #canvas>

    ^

    #(FullSpec

       name: searchDialogSpec

       window:

      (WindowSpec

         label: 'String search'

         name: 'String search'

         min: (Point 10 10)

         max: (Point 1280 1024)

         bounds: (Rectangle 0 0 475 376)

       )

       component:

      (SpecCollection

         collection: (

          (LabelSpec

             label: 'SearchPattern:'

             name: 'label'

             layout: (LayoutFrame 1 0.0 3 0 -1 1.0 20 0)

             level: 0

             translateLabel: true

             adjust: left

           )

          (ComboBoxSpec

             name: 'patternComboBox'

             layout: (LayoutFrame 2 0.0 26 0 -2 1.0 48 0)

             activeHelpKey: searchPattern

             tabable: true

             model: searchPattern

             immediateAccept: false

             acceptOnLeave: true

             acceptOnReturn: true

             acceptOnTab: true

             acceptOnLostFocus: true

             acceptOnPointerLeave: false

             autoSelectInitialText: true

             comboList: patternList

           )

          (VerticalPanelViewSpec

             name: 'VerticalPanel1'

             layout: (LayoutFrame 0 0.0 52 0 0 1.0 -32 1)

             horizontalLayout: fit

             verticalLayout: top

             component:

            (SpecCollection

               collection: (

                (CheckBoxSpec

                   label: 'Case Sensitive'

                   name: 'ignoreCaseCheckBox'

                   activeHelpKey: searchCaseSensitive

                   level: 0

                   tabable: true

                   model: caseSensitive

                   translateLabel: true

                   extent: (Point 475 24)

                 )

                (ViewSpec

                   name: 'MatchBox'

                   component:

                  (SpecCollection

                     collection: (

                      (CheckBoxSpec

                         label: 'Match (forward only)'

                         name: 'matchCheckBox'

                         layout: (LayoutFrame 0 0 0 0 260 0 0 1)

                         activeHelpKey: matchSearch

                         level: 0

                         tabable: true

                         model: match

                         translateLabel: true

                       )

                      (CheckBoxSpec

                         label: 'Regex Match'

                         name: 'CheckBox6'

                         layout: (LayoutFrame -170 1 0 0 0 1 22 0)

                         activeHelpKey: matchWithRegex

                         enableChannel: matchWithRegexVisible

                         model: matchWithRegex

                         translateLabel: true

                       )

                      )