This file is indexed.

/usr/share/perl5/Curses/Widgets/ProgressBar.pm is in libcurses-widgets-perl 1.997-7.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
# Curses::Widgets::ProgressBar.pm -- Progress Bar Widgets
#
# (c) 2001, Arthur Corliss <corliss@digitalmages.com>
#
# $Id: ProgressBar.pm,v 1.103 2002/11/03 23:40:04 corliss Exp corliss $
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    any later version.
#
#    This program 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 General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software
#    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
#####################################################################

=head1 NAME

Curses::Widgets::ProgressBar - Progress Bar Widgets

=head1 MODULE VERSION

$Id: ProgressBar.pm,v 1.103 2002/11/03 23:40:04 corliss Exp corliss $

=head1 SYNOPSIS

  use Curses::Widgets::ProgressBar;

  $progress = Curses::Widgets::ProgessBar->({
    CAPTION     => 'Progress',
    CAPTIONCOL  => 'yellow',
    LENGTH      => 10,
    VALUE       => 0,
    FOREGROUND  => undef,
    BACKGROUND  => 'black',
    BORDER      => 1,
    BORDERCOL   => undef,
    HORIZONTAL  => 1,
    X           => 1,
    Y           => 1,
    MIN         => 0,
    MAX         => 100,
    });

  $progress->draw($mwh);

  $progress->input(5);

  See the Curses::Widgets pod for other methods.

=head1 REQUIREMENTS

=over

=item Curses

=item Curses::Widgets

=back

=head1 DESCRIPTION

Curses::Widgets::ProgressBar provides simplified OO access to Curses-based
progress bar.  Each object maintains it's own state information.

Note that this widget is designed for rendering, not interactive input.  The
application should update the the value of the bar by either calling the
B<input> method, which will add the passed value to the widget's current
value, or by setting the value directly via the B<setField> method.

=cut

#####################################################################
#
# Environment definitions
#
#####################################################################

package Curses::Widgets::ProgressBar;

use strict;
use vars qw($VERSION @ISA);
use Carp;
use Curses;
use Curses::Widgets;

($VERSION) = (q$Revision: 1.103 $ =~ /(\d+(?:\.(\d+))+)/);
@ISA = qw(Curses::Widgets);

#####################################################################
#
# Module code follows
#
#####################################################################

=head1 METHODS

=head2 new (inherited from Curses::Widgets)

  $progress = Curses::Widgets::ProgressBar->({
    CAPTION     => 'Progress',
    CAPTIONCOL  => 'yellow',
    LENGTH      => 10,
    VALUE       => 0,
    FOREGROUND  => undef,
    BACKGROUND  => 'black',
    BORDER      => 1,
    BORDERCOL   => undef,
    HORIZONTAL  => 1,
    X           => 1,
    Y           => 1,
    MIN         => 0,
    MAX         => 100,
    });

The new method instantiates a new Progress Bar object.  The only mandatory
key/value pairs in the configuration hash are B<X> and B<Y>.  
All others have the following defaults:

  Key         Default   Description
  ============================================================
  CAPTION       undef   Caption superimposed on border
  CAPTIONCOL    undef   Foreground colour for caption text
  LENGTH           10   Number of columns for the bar
  VALUE             0   Current value
  FOREGROUND    undef   Default foreground colour
  BACKGROUND    undef   Default blackground colour
  BORDER            1   Display border around the set
  BORDERCOL     undef   Foreground colour for border
  HORIZONTAL        1   Horizontal orientation for bar
  MIN               0   Low value for bar (0%)
  MAX             100   High vlaue for bar (100%)

Setting the value will change the length of the bar, based on the bounds set
with B<MIN> and B<MAX>.  The B<CAPTION> is only rendered on the border of a
horizontal progress bar.

=cut

sub _conf {
  # Validates and initialises the new TextField object.
  #
  # Usage:  $self->_conf(%conf);

  my $self = shift;
  my %conf = (
    CAPTION     => undef,
    LENGTH      => 10,
    VALUE       => 0,
    BORDER      => 1,
    HORIZONTAL  => 1,
    MIN         => 0,
    MAX         => 100,
    @_ 
    );
  my @required = qw(X Y);
  my $err = 0;

  $conf{COLUMNS} = $conf{HORIZONTAL} ? $conf{LENGTH} : 0;

  # Check for required arguments
  foreach (@required) { $err = 1 unless exists $conf{$_} };

  $conf{VALUE} = $conf{MIN} if $conf{VALUE} < $conf{MIN};

  $err = 1 unless $self->SUPER::_conf(%conf);

  return $err == 0 ? 1 : 0;
}

=head2 draw

  $progress->draw($mwh);

The draw method renders the progress bar in its current state.  This
requires a valid handle to a curses window in which it will render
itself.

=cut

sub _geometry {
  my $self = shift;
  my $conf = $self->{CONF};
  my @rv;

  @rv = @$conf{qw(HORIZONTAL LENGTH Y X)};
  @rv[0,1] = @rv[1,0] unless ($rv[0]);
  if ($$conf{BORDER}) {
    $rv[0] += 2;
    $rv[1] += 2;
  }

  return @rv;
}

sub _cgeometry {
  my $self = shift;
  my $conf = $self->{CONF};
  my @rv;

  @rv = @$conf{qw(HORIZONTAL LENGTH Y X)};
  @rv[0,1] = @rv[1,0] unless ($rv[0]);
  @rv[2,3] = (1, 1) if $$conf{BORDER};

  return @rv;
}

sub _content {
  my $self = shift;
  my $dwh = shift;
  my $conf = $self->{CONF};
  my ($hz, $value, $length, $min, $max) = 
    @$conf{qw(HORIZONTAL VALUE LENGTH MIN MAX)};
  my ($i, $j, $k, $l);

  # Draw the bar
  $i = ($max - $min) / $length;
  $j = $min;
  $l = $hz ? 0 : $length - 1;
  $k = 0;
  while ($j < $value) {
    $dwh->addch($k, $l, ACS_CKBOARD);
    $hz ? ++$l : --$k;
    $j += $i;
  }
  $dwh->attroff(A_BOLD);
}

sub input_key {
  # Since this widget doesn't handle interactive input,
  # this routine does nothing.
}

sub execute {
  # Since this widget doesn't handle interactive input,
  # this routine does nothing.
}

=head2 input

  $progress->input(5);

The argument is added to the progress bar's current value.

=cut

sub input {
  my $self = shift;
  my $value = shift || 0;
  my $conf = $self->{CONF};

  $$conf{VALUE} += $value;
}

1;

=head1 HISTORY

=over

=item 2001/07/05 -- First implementation

=back

=head1 AUTHOR/COPYRIGHT

(c) 2001 Arthur Corliss (corliss@digitalmages.com)

=cut