UI::Dialog::Backend::Whiptail(3pm)			User Contributed Perl Documentation			UI::Dialog::Backend::Whiptail(3pm)

NAME

	UI::Dialog::Backend::Whiptail

SYNOPSIS

	 use UI::Dialog::Backend::Whiptail;
	 my $d = new UI::Dialog::Backend::Whiptail ( backtitle => 'Demo',
						     title => 'Default' );

	 $d->msgbox( title => 'Welcome!', text => 'Welcome one and all!' );

ABSTRACT

       UI::Dialog::Backend::Whiptail is the UI::Dialog backend for the Whiptail dialog variant. While this module is used through UI::Dialog or
       any other loader module only the compatible methods are ever accessible. However, when using this module directly in your application (as
       in the SYNOPSIS example) you are given access to all the options and features of the real whiptail(1) application.

DESCRIPTION

       This dialog variant is the staple of the Debian console apt/dpkg interface. There isn't very much interesting about this particular back-
       end. This is very much a basic dialog variant in comparison to things like Xdialog and cDialog.

EXPORT

	None

INHERITS

	UI::Dialog::Backend

CONSTRUCTOR

       new( @options )

       EXAMPLE
	    my $d = new( title => 'Default Title', backtitle => 'Backtitle',
			 width => 65, height => 20, listheight => 5 );

       DESCRIPTION
		 This is the Class Constructor method. It accepts a list of key => value pairs and uses them as the defaults when interacting with
		 the various widgets.

       RETURNS
	    A blessed object reference of the UI::Dialog::Backend::Whiptail class.

       OPTIONS
	   The (...)'s after each option indicate the default for the option. An * denotes support by all the widget methods on a per-use policy
	   defaulting to the values decided during object creation.

	   debug = 0,1,2(0)
	   literal = 0,1(0)
	   backtitle = "backtitle" ('') *
	   title = "title" ('') *
	   height = d+(0) *
	   listheight = d+(5) *
	   width = d+(0) *
	   beepbefore = 0,1(0) *
	   beepafter = 0,1(0) *

WIDGET METHODS

       yesno( )

       EXAMPLE
	    if ($d->yesno( text => 'A binary type question?') ) {
		# user pressed yes
	    } else {
		# user pressed no or cancel
	    }

       DESCRIPTION
		 Present the end user with a message box that has two buttons, yes and no.

       RETURNS
	    TRUE(1) for a response of YES or FALSE(0) for anything else.

       msgbox( )

       EXAMPLE
	    $d->msgbox( text => 'A simple message' );

       DESCRIPTION
		 Pesent the end user with a message box that has an OK button.

       RETURNS
		 TRUE(1) for a response of OK or FALSE(0) for anything else.

       infobox( )

       EXAMPLE
	    $d->infobox( text => 'A simple 6 second message.', timeout => 6000 );

       DESCRIPTION
		 Pesent the end user with a message box for a limited duration of time. The timeout is specified in thousandths of a second, ie:
		 1000 = 1 second.

       RETURNS
		 TRUE(1) for a response of OK or FALSE(0) for anything else.

       password( )

       EXAMPLE
	    my $string = $d->password( text => 'Enter some (hidden) text.' );

       DESCRIPTION
		 Present the end user with a text input field that doesn't reveal the input (except to the script) and a message.

       RETURNS
		 a SCALAR if the response is OK and FALSE(0) for anything else.

       inputbox( )

       EXAMPLE
	    my $string = $d->inputbox( text => 'Enter some text.',
				       entry => 'this is the input field' );

       DESCRIPTION
		 Present the end user with a text input field and a message.

       RETURNS
		 a SCALAR if the response is OK and FALSE(0) for anything else.

       textbox( )

       EXAMPLE
	    $d->textbox( path => '/path/to/a/text/file' );

       DESCRIPTION
		 Present the end user with a simple scrolling box containing the contents of the given text file.

       RETURNS
		 TRUE(1) if the response is OK and FALSE(0) for anything else.

       menu( )

       EXAMPLE
	    my $selection1 = $d->menu( text => 'Select one:',
				       list => [ 'tag1', 'item1',
						 'tag2', 'item2',
						 'tag3', 'item3' ]
				     );

       DESCRIPTION
		 Present the user with a selectable list.

       RETURNS
		 a SCALAR of the chosen tag if the response is OK and FALSE(0) for anything else.

       checklist( )

       EXAMPLE
	    my @selection = $d->checklist( text => 'Select one:',
					   list => [ 'tag1', [ 'item1', 0 ],
						     'tag2', [ 'item2', 1 ],
						     'tag3', [ 'item3', 1 ] ]
					 );

       DESCRIPTION
		 Present the user with a selectable checklist.

       RETURNS
		 an ARRAY of the chosen tags if the response is OK and FALSE(0) for anything else.

       radiolist( )

       EXAMPLE
	    my $selection = $d->radiolist( text => 'Select one:',
					   list => [ 'tag1', [ 'item1', 0 ],
						     'tag2', [ 'item2', 1 ],
						     'tag3', [ 'item3', 0 ] ]
					 );

       DESCRIPTION
		 Present the user with a selectable radiolist.

       RETURNS
		 a SCALAR of the chosen tag if the response is OK and FALSE(0) for anything else.

       fselect( )

       EXAMPLE
	    my $text = $d->fselect( path => '/path/to/a/file/or/directory' );

       DESCRIPTION
		 Present the user with a file selection widget preset with the given path.

       RETURNS
		 a SCALAR if the response is OK and FALSE(0) for anything else.

       dselect( )

       EXAMPLE
	    my $text = $d->dselect( path => '/path/to/a/directory' );

       DESCRIPTION
		 Present the user with a file selection widget preset with the given path.  Unlike fselect() this widget will only return a direc-
		 tory selection.

       RETURNS
		 a SCALAR if the response is OK and FALSE(0) for anything else.

       gauge_start( )

       EXAMPLE
	    $d->gauge_start( text => 'gauge...', percentage => 1 );

       DESCRIPTION
		 Display a meter bar to the user. This get's the widget realized but requires the use of the other gauge_*() methods for function-
		 ality.

       RETURNS
		 TRUE(1) if the widget loaded fine and FALSE(0) for anything else.

       gauge_inc( )

       EXAMPLE
	    $d->gauge_inc( 1 );

       DESCRIPTION
		 Increment the meter by the given amount.

       RETURNS
		 TRUE(1) if the widget incremented fine and FALSE(0) for anything else.

       gauge_dec( )

       EXAMPLE
	    $d->gauge_dec( 1 );

       DESCRIPTION
		 Decrement the meter by the given amount.

       RETURNS
		 TRUE(1) if the widget incremented fine and FALSE(0) for anything else.

       gauge_set( )

       EXAMPLE
	    $d->gauge_set( 99 );

       DESCRIPTION
		 Set the meter bar to the given amount.

       RETURNS
		 TRUE(1) if the widget set fine and FALSE(0) for anything else.

       gauge_text( )

       EXAMPLE
	    $d->gauge_text( 'string' );

       DESCRIPTION
		 Set the meter bar message to the given string.

       RETURNS
		 TRUE(1) if the widget set fine and FALSE(0) for anything else.

       gauge_stop( )

       EXAMPLE
	    $d->gauge_stop();

       DESCRIPTION
		 End the meter bar widget process.

       RETURNS
		 TRUE(1) if the widget closed fine and FALSE(0) for anything else.

SEE ALSO

       PERLDOC
	  UI::Dialog
	  UI::Dialog::Console
	  UI::Dialog::Backend

       MAN FILES
	  whiptail(1)

BUGS

	Please email the author with any bug reports. Include the name of the
	module in the subject line.

AUTHOR

	Kevin C. Krinke, E<lt>kckrinke@opendoorsoftware.comE<gt>

COPYRIGHT AND LICENSE

	Copyright (C) 2003  Kevin C. Krinke <kckrinke@opendoorsoftware.com>

	This library is free software; you can redistribute it and/or
	modify it under the terms of the GNU Lesser General Public
	License as published by the Free Software Foundation; either
	version 2.1 of the License, or (at your option) any later version.

	This library is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
	Lesser General Public License for more details.

	You should have received a copy of the GNU Lesser General Public
	License along with this library; if not, write to the Free Software
	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA

perl v5.8.8							    2004-08-01					UI::Dialog::Backend::Whiptail(3pm)