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<HTML>
<HEAD>
<TITLE>Tk::TextUndo - perl/tk text widget with bindings to undo changes.</TITLE>
<LINK REL="stylesheet" HREF="../../../Active.css" TYPE="text/css">
<LINK REV="made" HREF="mailto:">
</HEAD>
<BODY>
<TABLE BORDER=0 CELLPADDING=0 CELLSPACING=0 WIDTH=100%>
<TR><TD CLASS=block VALIGN=MIDDLE WIDTH=100% BGCOLOR="#cccccc">
<STRONG><P CLASS=block> Tk::TextUndo - perl/tk text widget with bindings to undo changes.</P></STRONG>
</TD></TR>
</TABLE>
<A NAME="__index__"></A>
<!-- INDEX BEGIN -->
<UL>
<LI><A HREF="#name">NAME</A></LI><LI><A HREF="#supportedplatforms">SUPPORTED PLATFORMS</A></LI>
<LI><A HREF="#synopsis">SYNOPSIS</A></LI>
<LI><A HREF="#description">DESCRIPTION</A></LI>
<UL>
<LI><A HREF="#bindings">Bindings</A></LI>
<LI><A HREF="#methods">Methods</A></LI>
</UL>
<LI><A HREF="#keys">KEYS</A></LI>
<LI><A HREF="#see also">SEE ALSO</A></LI>
</UL>
<!-- INDEX END -->
<HR>
<P>
<H1><A NAME="name">NAME</A></H1>
<P>Tk::TextUndo - perl/tk text widget with bindings to undo changes.</P>
<P>
<HR>
<H1><A NAME="supportedplatforms">SUPPORTED PLATFORMS</A></H1>
<UL>
<LI>Linux</LI>
<LI>Solaris</LI>
<LI>Windows</LI>
</UL>
<HR>
<H1><A NAME="synopsis">SYNOPSIS</A></H1>
<P> <STRONG>use Tk::TextUndo;</STRONG></P>
<P> <EM>$testundo</EM> = <EM>$parent</EM>-><STRONG>TextUndo</STRONG>(?<EM>-option</EM>=><EM>value</EM>, ...?);</P>
<P>
<HR>
<H1><A NAME="description">DESCRIPTION</A></H1>
<P>This IS-A text widget with an unlimited 'undo' history but without
a re'undo' capability.</P>
<P>
<H2><A NAME="bindings">Bindings</A></H2>
<P>The <CODE>TextUndo</CODE> widget has the same bindings as the <A HREF="../../../site/lib/Tk/Text.html">Text</A> widget.
In addition there are the following bindings:</P>
<DL>
<DT><STRONG><A NAME="item_Event_%3CL4%3E_%3C%3CUndo%3E%3E">Event <L4> <<Undo>></A></STRONG><BR>
<DD>
undo the last change. Pressing <L4> several times undo
step by step the changes made to the text widget.
<P></P></DL>
<P>
<H2><A NAME="methods">Methods</A></H2>
<P>The <CODE>TextUndo</CODE> widget has the same methods as <CODE>Text</CODE> widget.
Additional methods for the <CODE>TextUndo</CODE> widget are:</P>
<DL>
<DT><STRONG><A NAME="item_Load">$text->Load($filename);</A></STRONG><BR>
<DD>
Loads the contents of the $filename into the text widget. <A HREF="#item_Load"><CODE>Load()</CODE></A>
delete the previous contents of the text widget as well as it's
undo history of the previous file.
<P></P>
<DT><STRONG><A NAME="item_Save">$text-><CODE>Save(?$otherfilename?)</CODE></A></STRONG><BR>
<DD>
Save contents of the text widget to a file. If the
$otherfilename is not specified, the text widget contents
writes the file of $filename used in the last <A HREF="#item_Load"><CODE>Load()</CODE></A>
call. If no file was previously Load()'ed an error message
pops up. The default filename of the last <A HREF="#item_Load"><CODE>Load()</CODE></A> call
is not overwriten by $otherfilename.
<P></P>
<DT><STRONG><A NAME="item_FileName">$text-><CODE>FileName(?$otherfilename?)</CODE></A></STRONG><BR>
<DD>
If passed an argument sets the file name associated with the loaded
document. Returns the current file name associated with the document.
<P></P></DL>
<P>
<HR>
<H1><A NAME="keys">KEYS</A></H1>
<P>widget, text, undo</P>
<P>
<HR>
<H1><A NAME="see also">SEE ALSO</A></H1>
<P><A HREF="../../../site/lib/Tk/Text.html">the Tk::Text manpage</A>, <A HREF="../../../site/lib/Tk/ROText.html">the Tk::ROText manpage</A></P>
<TABLE BORDER=0 CELLPADDING=0 CELLSPACING=0 WIDTH=100%>
<TR><TD CLASS=block VALIGN=MIDDLE WIDTH=100% BGCOLOR="#cccccc">
<STRONG><P CLASS=block> Tk::TextUndo - perl/tk text widget with bindings to undo changes.</P></STRONG>
</TD></TR>
</TABLE>
</BODY>
</HTML>