DOKK / manpages / debian 12 / libui-dialog-perl / UI::Dialog::Backend::ASCII.3pm.en
UI::Dialog::Backend::ASCII(3pm) User Contributed Perl Documentation UI::Dialog::Backend::ASCII(3pm)

UI::Dialog::Backend::ASCII - Dialog backend for the native Perl mode of basic text.

  use UI::Dialog::Backend::ASCII;
  my $d = new UI::Dialog::Backend::ASCII ( backtitle => 'Demo',
                                           title => 'Default' );
  $d->msgbox( title => 'Welcome!', text => 'Welcome one and all!' );

UI::Dialog::Backend::ASCII is the UI::Dialog backend for the native Perl mode of basic text. The widgets are very much "rigid" in that the width and height arguments are completely ignored.

This backend is intended as a last resort mechanism in that no other dialog variant has been found and so this, the most absolute of bargain basement dialog variant interfaces, is used instead.

 my $d = new UI::Dialog::Backend::ASCII ( title => 'Default Title',
                                          backtitle => 'Backtitle'
                                        );
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.
A blessed object reference of the UI::Dialog::Backend::ASCII class.
The (...)'s after each option indicate the default for the option.

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

 $d->msgbox( text => 'A simple message' );
DESCRIPTION
Pesent the end user with a message box that has an OK button.
TRUE (1) for a response of OK or FALSE (0) for anything else.

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

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

 my $string = $d->inputbox( text => 'Please enter some text...',
                            entry => 'this is the input field' );
DESCRIPTION
Present the end user with a text input field and a message.
a SCALAR if the response is OK and FALSE (0) for anything else.

 $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.
TRUE (1) if the response is OK and FALSE (0) for anything else.
 my $selection1 = $d->menu( text => 'Select one:',
                            list => [ 'tag1', 'item1',
                                      'tag2', 'item2',
                                      'tag3', 'item3' ]
                          );
DESCRIPTION
Present the user with a selectable list.
a SCALAR of the chosen tag if the response is OK and FALSE (0) for anything else.

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

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

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

 my $text = $d->dselect( path => '/path/to/a/file/or/directory' );
DESCRIPTION
Present the user with a file selection widget preset with the given path. Unlike fselect() this widget will only return a directory selection.
a SCALAR if the response is OK and FALSE (0) for anything else.

 print STDOUT "spinner... ";
 for (20,40,60,80,100) { print $d->spinner(); sleep(1); }
 print STDOUT "\bdone.\n";
DESCRIPTION
Return the next character in the spin sequence prefixed with a backspace (\b) character. The spinner is made up of four ASCII characters; | (pipe), \ (back slash), / (forward slash), - (hyphen).

The complete sequence is as follows:

 |
 /
 -
 \
 |
 /
 -
 \
A two character SCALAR.

 foreach my $i (20,40,60,80,100) {
   last unless $d->draw_gauge( bar => "-", mark => "|", length => 74,
                               percent => $i );
   sleep(1);
 }
 foreach my $i (200,500,10000,12000,12345) {
   last unless $d->draw_gauge( bar => "-", mark => "|", length => 74,
                               current => $i, total => 12345 );
   sleep(1);
 }
DESCRIPTION
Draw a meter bar with a position indicator. You can specify alternate characters for use as the meter bar itself (default is "-") and the positional marker (default to "|") as well as an arbitrary length to the bar itself.

There are two different ways to present the bar, either by specifying the percentage to display or by specifying the current and total values and and the widget will figure out the percentage for you.

None.

 $d->end_gauge();
DESCRIPTION
Simply print a newline for use when the finished with the draw_gauge() widget as that leaves the cursor at the end of the last line of output.
None.

 UI::Dialog
 UI::Dialog::Backend
 UI::Dialog::Console
pager(1), less(1), more(1), stty(1)

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

Kevin C. Krinke, <kevin@krinke.ca>

 Copyright (C) 2004-2016  Kevin C. Krinke <kevin@krinke.ca>
 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
2018-10-27 perl v5.26.2