[Tcl-bugs] [ tktoolkit-Patches-554763 ] Reimplement undo stack + minor fixes

[<no...@so...>]

Patches item #554763, was opened at 2002-05-11 07:46
You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=312997&aid=554763&group_id=12997

Category: 18. [text]
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Ludwig Callewaert (lgac)
Assigned to: Jeffrey Hobbs (hobbs)
Summary: Reimplement undo stack + minor fixes

Initial Comment:
This is a Tk 8.4a4 patch.

The purpose is a reimplemtation of the undo stack.
An item on the undo stack is now a list of items
containing two scripts (Tc_Obj's): the apply action
(for redo) and the revert action (for undo).
This opens the path to undoing more than only text
inserts and deletions, such as applying or removing
tags (this is not part of the patch however).

The undo stack implementation has been separated from
the text widget, and is in fact usable by other
widgets as well now.

Some typos in the text.n doc are corrected as well,
and a problem with the tk::TextPaste function (pasting
twice) was also corrected.

This patch has only been verfied on Red Hat Linux 7.2

The Windows Makelfile.in was adapted to accomodate the
new tkUndo.c and tkUndo.h files.

The Mac section was NOT adapted yet for these two new
files.

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You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=312997&aid=554763&group_id=12997