ColorEditor(3pm) User Contributed Perl Documentation ColorEditor(3pm)NAMETk::ColorEditor - a general purpose Tk widget Color Editor
SYNOPSIS
use Tk::ColorEditor;
$cref = $mw->ColorEditor(-title => $title, -cursor => @cursor);
$cref->Show;
DESCRIPTION
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 Show() method.
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.
1. Call the constructor to create the editor object, which in turn
returns a blessed reference to the new object:
use Tk::ColorEditor;
$cref = $mw->ColorEditor(
-title => $title,
-cursor => @cursor,
);
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".
2. Invoke the configure() method to change editor characteristics:
$cref->configure(-option => value, ..., -option-n => value-n);
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.
For example:
$cref->configure(-delete_menu_item => 3,
-delete_menu_item => 'disabledforeground',
-add_menu_item => 'SEP',
-add_menu_item => 'New color attribute',
-widgets => [$ce, $qu, $f2b2],
-widgets => [$f2->Descendants],
-command => [\&my_special_configurator, some, args ]
);
3. Invoke the Show() method on the editor object, say, by a button or
menu press:
$cref->Show;
4. The cget(-widgets) 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 configure()
call to expand your color list.
$cref->configure(
-widgets => [
@{$Filesystem_ref->cget(-widgets)}, @{$cref->cget(-widgets)},
]
);
5. The delete_widgets() method expects a reference to a list of
widgets which are then removed from the current color list.
$cref->delete_widgets($OBJTABLE{$objname}->{'-widgets'})
AUTHORS
Stephen O. Lidie, Lehigh University Computing Center. 95/03/05
lusol@Lehigh.EDU
Many thanks to Guy Decoux (decoux@moulon.inra.fr) for doing the initial
translation of tcolor.tcl to TkPerl, from which this code has been
derived.
perl v5.26.0 2017-07-22 ColorEditor(3pm)
