WorkspaceText.pm - Text editor widget.

NAME

    WorkspaceText.pm - Text editor widget.

SYNOPSIS

    use Tk::WorkspaceText;

    my $w = new Tk::WorkspaceText (<options>);

DESCRIPTION

The Tk::WorkspaceText widget is derived from the Tk::Text and Tk::TextUndo widgets. For information about standard options, refer to the widgets' documentation.

Tk::WorkspaceText widgets use fixed tabs, and support paragraph filling and selection, a ``text modified'' flag, recentering, and additional key bindings.

Paragraphs are defined as contiguous lines of text separated by blank lines - lines that consist only of a newline (``\n'').

WIDGET METHODS

The Tk::WorkspaceText widget supports the configure and cget methods described in the the Tk::options manpage documentation. The Tk::WorkspaceText widget also inherits all the methods of the Tk::Widget, Tk::Text, and Tk::TextUndo widget classes.

In addition, Tk::WorkspaceText widgets recognize these methods:

$text->paragraphFill: Fill the paragraph that contains the insertion point. Paragraphs are defined as a series of contiguous lines of text separated by blank lines. Text is filled against the left margin, and wraps before the right margin, which can be set with the wrapcolumn method, below.
$text->selectPara: Select the entire paragraph. As with paragraphFill, paragraphs are defined as a set of contiguous lines separated by blank lines.
$text->prevPara: Set the insertion cursor to the first line of a paragraph. Does nothing if the insertion cursor is already on the first line of the paragraph.
$text->setFixedTabs: Set fixed tab stops to the value of the numeric argument. Tab stops occur every 8 columns by default.
$text->center: Center the line that contains the insertion cursor in the window.
$text->modified: With argument, sets the modified flag to the argument. With no argument, returns the value of the modified flag. By default, the value of the modified flag is '1' if text was modified, '' if unmodified.
$text->fillcolumn: With argument, set the right margin column for filling paragraphs. Returns the value of the right margin. The default is column 65.

KEY BINDINGS

Tk::WorkspaceText widgets support the keybindings of the Tk::Text and Tk::TextUndo widgets, in addition to its own bindings. For further information, please refer to the Tk::Text, Tk::TextUndo, and Tk::bind man pages.

    Alt-H                 Select Paragraph
    Alt-L                 Fill Paragraph

    Right, Ctrl-F         Forward Character
    Left, Ctrl-B          Backward Character
    Up, Ctrl-P            Up One Line
    Down, Ctrl-N          Down One Line
    Shift-Right           Forward Character Extend Selection
    Shift-Left            Backward Character Extend Selection
    Shift-Up              Up One Line, Extend Selection
    Shift-Down            Down One Line, Extend Selection
    Ctrl-Right, Meta-F    Forward Word
    Ctrl-Left, Meta-B     Backward Word
    Ctrl-Up               Up One Paragraph
    Ctrl-Down             Down One Paragraph
    PgUp                  Scroll View Up One Screen
    PgDn                  Scroll View Down One Screen
    Ctrl-PgUp             Scroll View Right
    Ctrl-PgDn             Scroll View Left
    Home, Ctrl-A          Beginning of Line
    End, Ctrl-E           End of Line
    Ctrl-Home, Meta-<     Beginning of Text
    Ctrl-End, Meta->      End of Text
    Ctrl-/                Select All
    Ctrl-\                Clear Selection
    F16, Copy, Meta-W     Copy Selection to Clipboard
    F20, Cut, Ctrl-W      Copy Selection to Clipboard and Delete
    F18, Paste, Ctrl-Y    Paste Clipboard Text at Insertion Point
    Delete, Ctrl-D        Delete Character to Right, or Selection
    Backspace, Ctrl-H     Delete Character to Left, or Selection
    Meta-D                Delete Word to Right
    Meta-Backspace, Meta-Delete
                          Delete Word to Left
    Ctrl-K                Delete from Cursor to End of Line
    Ctrl-O                Open a Blank Line
    Ctrl-X                Clear Selection
    Ctrl-T                Reverse Order of Characters on Either Side
                          of the Cursor
    Ctrl-.                Center the line the insertion point is on
                          in the window.

    Mouse Button 1:
    Single Click: Set Insertion Cursor at Mouse Pointer
    Double Click: Select Word Under the Mouse Pointer and Position 
    Cursor at the Beginning of the Word
    Triple Click: Select Line Under the Mouse Pointer and Position 
    Cursor at the Beginning of the Line
    Drag: Define Selection from Insertion Cursor
    Shift-Drag: Extend Selection
    Double Click, Shift-Drag: Extend Selection by Whole Words
    Triple Click, Shift-Drag: Extend Selection by Whole Lines
    Ctrl: Position Insertion Cursor without Affecting Selection

    Mouse Button 2:
    Click: Copy Selection into Text at the Mouse Pointer
    Drag:Shift View

    Mouse Button 3:
    Pop Up Menu Bar

    Meta                  Escape

CREDITS

  Tk::WorkspaceText by rkiesling@mainmatter.com (Robert Kiesling)

  Perl/Tk by Nick Ing-Simmons.
  Perl by Larry Wall and many others.

REVISION

$Id: WorkspaceText.pm,v 0.58 2001/09/15 02:22:54 kiesling Exp $