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<HTML>
<HEAD>
<TITLE>Tk::ColorEditor - a general purpose Tk widget Color Editor</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::ColorEditor - a general purpose Tk widget Color Editor</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>
<LI><A HREF="#authors">AUTHORS</A></LI>
</UL>
<!-- INDEX END -->
<HR>
<P>
<H1><A NAME="name">NAME</A></H1>
<P>Tk::ColorEditor - a general purpose Tk widget Color Editor</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>
<PRE>
use Tk::ColorEditor;</PRE>
<PRE>
$cref = $mw->ColorEditor(-title => $title, -cursor => @cursor);</PRE>
<PRE>
$cref->Show;</PRE>
<P>
<HR>
<H1><A NAME="description">DESCRIPTION</A></H1>
<P>ColorEditor is implemented as an object with various methods, described
below. First, create your ColorEditor object during program initialization
(one should be sufficient), and then configure it by specifying a list of Tk
widgets to colorize. When it's time to use the editor, invoke the <CODE>Show()</CODE>
method.</P>
<P>ColorEditor allows some customization: you may alter the color attribute
menu by adding and/or deleting menu items and/or separators, turn the status
window on or off, alter the configurator's list of color widgets, or even
supply your own custom color configurator callback.</P>
<OL>
<LI>
Call the constructor to create the editor object, which in turn returns a
blessed reference to the new object:
<PRE>
use Tk::ColorEditor;</PRE>
<PRE>
$cref = $mw->ColorEditor(
-title => $title,
-cursor => @cursor,
);</PRE>
<PRE>
mw - a window reference, usually the result of a MainWindow->new
call. As the default root of a widget tree, $mw and all
descendant widgets at object-creation-time are configured
by the default color configurator procedure. (You probably
want to change this though or you might end up colorizing
ColorEditor!)
title - Toplevel title, default = ' '.
cursor - a valid Tk '-cursor' specification (default is
'top_left_arrow'). This cursor is used over all ColorEditor
"hot spots".</PRE>
<P></P>
<LI>
Invoke the <CODE>configure()</CODE> method to change editor characteristics:
<PRE>
$cref->configure(-option => value, ..., -option-n => value-n);</PRE>
<PRE>
options:
-command : a callback to a `set_colors' replacement.
-widgets : a reference to a list of widget references
for the color configurator.
-display_status : TRUE IFF display the ColorEditor status
window when applying colors.
-add_menu_item : 'SEP', or a color attribute menu item.
-delete_menu_item : 'SEP', a color attribute menu item, or color
attribute menu ordinal.</PRE>
<PRE>
For example:</PRE>
<PRE>
$cref->configure(-delete_menu_item => 3,
-delete_menu_item => 'disabledforeground',
-add_menu_item => 'SEP',
-add_menu_item => 'New color attribute',
-widgets => [$ce, $qu, $f2b2],
-widgets => [$f2->Descendants],
-command => [\&my_special_configurator, some, args ]
);</PRE>
<P></P>
<LI>
Invoke the <CODE>Show()</CODE> method on the editor object, say, by a button or menu press:
<PRE>
$cref->Show;</PRE>
<P></P>
<LI>
The <CODE>cget(-widgets)</CODE> method returns a reference to a list of widgets that
are colorized by the configurator. Typically, you add new widgets to
this list and then use it in a subsequent <CODE>configure()</CODE> call to expand your
color list.
<PRE>
$cref->configure(
-widgets => [
@{$Filesystem_ref->cget(-widgets)}, @{$cref->cget(-widgets)},
]
);</PRE>
<P></P>
<LI>
The <CODE>delete_widgets()</CODE> method expects a reference to a list of widgets which are
then removed from the current color list.
<PRE>
$cref->delete_widgets($OBJTABLE{$objname}->{'-widgets'})</PRE>
<P></P></OL>
<P>
<HR>
<H1><A NAME="authors">AUTHORS</A></H1>
<P>Stephen O. Lidie, Lehigh University Computing Center. 95/03/05
<A HREF="mailto:lusol@Lehigh.EDU">lusol@Lehigh.EDU</A></P>
<P>Many thanks to Guy Decoux (<A HREF="mailto:decoux@moulon.inra.fr">decoux@moulon.inra.fr</A>) for doing the initial
translation of tcolor.tcl to TkPerl, from which this code has been derived.</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::ColorEditor - a general purpose Tk widget Color Editor</P></STRONG>
</TD></TR>
</TABLE>
</BODY>
</HTML>