/usr/share/perl5/GD/Graph/pie3d.pm is in libgd-graph3d-perl 0.63-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Module: GD::Graph::pie3d
#
# Description:
# This is merely a wrapper around GD::Graph::pie that forces
# the 3d option for pie charts.
#
# Created: 2000.Jan.19 by Jeremy Wadsack for Wadsack-Allen Digital Group
# Copyright (C) 2000,2001 Wadsack-Allen. All rights reserved.
############################################################
# Date Modification Author
# ----------------------------------------------------------
# 2000APR18 Modified to be compatible w/ GD::Graph 1.30 JW
# 2000APR24 Set default slice label color to black JW
# 2001Feb16 Added support for a legend JW
############################################################
package GD::Graph::pie3d;
use strict;
use GD;
use GD::Graph;
use GD::Graph::pie;
use GD::Graph::utils qw(:all);
use Carp;
@GD::Graph::pie3d::ISA = qw( GD::Graph::pie );
$GD::Graph::pie3d::VERSION = '0.63';
my %Defaults = (
'3d' => 1,
axislabelclr => 'black', # values on slices. black because default colors use dblue
# Size of the legend markers
legend_marker_height => 8,
legend_marker_width => 12,
legend_spacing => 4,
legend_placement => 'BC', # '[BR][LCR]'
lg_cols => undef,
legend_frame_margin => 4,
legend_frame_size => undef,
);
# PRIVATE
# Have to include because this is a different %Defaults hash
sub _has_default {
my $self = shift;
my $attr = shift || return;
exists $Defaults{$attr} || $self->SUPER::_has_default($attr);
}
sub initialise {
my $self = shift;
my $rc = $self->SUPER::initialise();
while( my($key, $val) = each %Defaults ) {
$self->{$key} = $val;
} # end while
$self->set_legend_font(GD::gdTinyFont);
return $rc;
} # end initialise
# Add lengend calc and draw code
sub plot
{
my $self = shift;
my $data = shift;
$self->check_data($data) or return;
$self->init_graph() or return;
$self->setup_text() or return;
$self->setup_legend();
$self->setup_coords() or return;
$self->{b_margin} += 4 if $self->{label}; # Kludge for descenders
$self->draw_text() or return;
$self->draw_pie() or return;
$self->draw_data() or return;
$self->draw_legend();
return $self->{graph};
}
# Added legend stuff
sub setup_text
{
my $self = shift;
my $rc = $self->SUPER::setup_text( @_ );
$self->{gdta_legend}->set(colour => $self->{legendci});
$self->{gdta_legend}->set_align('top', 'left');
$self->{lgfh} = $self->{gdta_legend}->get('height');
return $rc
} # end setup_text
# Inherit everything else from GD::Graph::pie
# Legend Support. Added 16.Feb.2001 - JW/WADG
sub set_legend # List of legend keys
{
my $self = shift;
$self->{legend} = [@_];
}
sub set_legend_font # (font name)
{
my $self = shift;
$self->_set_font('gdta_legend', @_);
}
#
# Legend
#
sub setup_legend
{
my $self = shift;
return unless defined $self->{legend};
my $maxlen = 0;
my $num = 0;
# Save some variables
$self->{r_margin_abs} = $self->{r_margin};
$self->{b_margin_abs} = $self->{b_margin};
foreach my $legend (@{$self->{legend}})
{
if (defined($legend) and $legend ne "")
{
$self->{gdta_legend}->set_text($legend);
my $len = $self->{gdta_legend}->get('width');
$maxlen = ($maxlen > $len) ? $maxlen : $len;
$num++;
}
# Legend for Pie goes over first set, and all points
last if $num >= $self->{_data}->num_points;
}
$self->{lg_num} = $num;
# calculate the height and width of each element
my $legend_height = _max($self->{lgfh}, $self->{legend_marker_height});
$self->{lg_el_width} =
$maxlen + $self->{legend_marker_width} + 3 * $self->{legend_spacing};
$self->{lg_el_height} = $legend_height + 2 * $self->{legend_spacing};
my ($lg_pos, $lg_align) = split(//, $self->{legend_placement});
if ($lg_pos eq 'R')
{
# Always work in one column
$self->{lg_cols} = 1;
$self->{lg_rows} = $num;
# Just for completeness, might use this in later versions
$self->{lg_x_size} = $self->{lg_cols} * $self->{lg_el_width};
$self->{lg_y_size} = $self->{lg_rows} * $self->{lg_el_height};
# Adjust the right margin for the rest of the graph
$self->{r_margin} += $self->{lg_x_size};
# Adjust for frame if defined
if( $self->{legend_frame_size} ) {
$self->{r_margin} += 2 * ($self->{legend_frame_margin} + $self->{legend_frame_size});
} # end if;
# Set the x starting point
$self->{lg_xs} = $self->{width} - $self->{r_margin};
# Set the y starting point, depending on alignment
if ($lg_align eq 'T')
{
$self->{lg_ys} = $self->{t_margin};
}
elsif ($lg_align eq 'B')
{
$self->{lg_ys} = $self->{height} - $self->{b_margin} -
$self->{lg_y_size};
}
else # default 'C'
{
my $height = $self->{height} - $self->{t_margin} -
$self->{b_margin};
$self->{lg_ys} =
int($self->{t_margin} + $height/2 - $self->{lg_y_size}/2) ;
}
}
else # 'B' is the default
{
# What width can we use
my $width = $self->{width} - $self->{l_margin} - $self->{r_margin};
(!defined($self->{lg_cols})) and
$self->{lg_cols} = int($width/$self->{lg_el_width});
$self->{lg_cols} = _min($self->{lg_cols}, $num);
$self->{lg_rows} =
int($num / $self->{lg_cols}) + (($num % $self->{lg_cols}) ? 1 : 0);
$self->{lg_x_size} = $self->{lg_cols} * $self->{lg_el_width};
$self->{lg_y_size} = $self->{lg_rows} * $self->{lg_el_height};
# Adjust the bottom margin for the rest of the graph
$self->{b_margin} += $self->{lg_y_size};
# Adjust for frame if defined
if( $self->{legend_frame_size} ) {
$self->{b_margin} += 2 * ($self->{legend_frame_margin} + $self->{legend_frame_size});
} # end if;
# Set the y starting point
$self->{lg_ys} = $self->{height} - $self->{b_margin};
# Set the x starting point, depending on alignment
if ($lg_align eq 'R')
{
$self->{lg_xs} = $self->{width} - $self->{r_margin} -
$self->{lg_x_size};
}
elsif ($lg_align eq 'L')
{
$self->{lg_xs} = $self->{l_margin};
}
else # default 'C'
{
$self->{lg_xs} =
int($self->{l_margin} + $width/2 - $self->{lg_x_size}/2);
}
}
}
sub draw_legend
{
my $self = shift;
return unless defined $self->{legend};
my $xl = $self->{lg_xs} + $self->{legend_spacing};
my $y = $self->{lg_ys} + $self->{legend_spacing} - 1;
# If there's a frame, offset by the size and margin
$xl += $self->{legend_frame_margin} + $self->{legend_frame_size} if $self->{legend_frame_size};
$y += $self->{legend_frame_margin} + $self->{legend_frame_size} if $self->{legend_frame_size};
my $i = 0;
my $row = 1;
my $x = $xl; # start position of current element
foreach my $legend (@{$self->{legend}})
{
$i++;
# Legend for Pie goes over first set, and all points
last if $i > $self->{_data}->num_points;
my $xe = $x; # position within an element
next unless defined($legend) && $legend ne "";
$self->draw_legend_marker($i, $xe, $y);
$xe += $self->{legend_marker_width} + $self->{legend_spacing};
my $ys = int($y + $self->{lg_el_height}/2 - $self->{lgfh}/2);
$self->{gdta_legend}->set_text($legend);
$self->{gdta_legend}->draw($xe, $ys);
$x += $self->{lg_el_width};
if (++$row > $self->{lg_cols})
{
$row = 1;
$y += $self->{lg_el_height};
$x = $xl;
}
}
# If there's a frame, draw it now
if( $self->{legend_frame_size} ) {
$x = $self->{lg_xs} + $self->{legend_spacing};
$y = $self->{lg_ys} + $self->{legend_spacing} - 1;
for $i ( 0 .. $self->{legend_frame_size} - 1 ) {
$self->{graph}->rectangle(
$x + $i,
$y + $i,
$x + $self->{lg_x_size} + 2 * $self->{legend_frame_margin} - $i - 1,
$y + $self->{lg_y_size} + 2 * $self->{legend_frame_margin} - $i - 1,
$self->{acci},
);
} # end for
} # end if
}
sub draw_legend_marker # data_set_number, x, y
{
my $s = shift;
my $n = shift;
my $x = shift;
my $y = shift;
my $g = $s->{graph};
my $ci = $s->set_clr($s->pick_data_clr($n));
$y += int($s->{lg_el_height}/2 - $s->{legend_marker_height}/2);
$g->filledRectangle(
$x, $y,
$x + $s->{legend_marker_width}, $y + $s->{legend_marker_height},
$ci
);
$g->rectangle(
$x, $y,
$x + $s->{legend_marker_width}, $y + $s->{legend_marker_height},
$s->{acci}
);
}
1;
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