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package PDF::Imposition::Schema1x1; |
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2034
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use strict; |
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use warnings; |
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use Types::Standard qw/Bool/; |
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1515
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use namespace::clean; |
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645
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use Moo; |
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with "PDF::Imposition::Schema"; |
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=head1 NAME |
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PDF::Imposition::Schema1x1 - 1:1 Imposition schema |
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=head2 SYNOPSIS |
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use PDF::Imposition::Schema1x1; |
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my $imposer = PDF::Imposition::Schema2up->new( |
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signature => "10-20", |
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file => "test.pdf", |
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output => "out.pdf", |
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cover => 1, |
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pages_per_sheet => 4, |
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); |
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$imposer->impose; |
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The output pdf will be in C<$imposer->output> |
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=head1 SCHEMA EXPLANATION |
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This is a 1:1 imposition schema, meaning that apparently doesn't do anything. |
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The purpose of this module is to do 2 things: |
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=over 4 |
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=item Convert the PDF to version 1.4, if not already so. |
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=item Handle the signature rounding and optimization |
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This for example means that a pdf with 6 pages will end up with 8 |
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pages (6 + 2 empty), and if you pass the C option with a true |
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value, you'll get the sixth page as page 8. |
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Also you can get the computed value calling C and |
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the total output pages with C. |
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=back |
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If you don't need any of this, you don't have any reason to use this |
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module. |
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=head2 cover |
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57
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This schema supports the cover option. |
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=cut |
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61
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has cover => (is => 'rw', isa => Bool); |
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63
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sub _do_impose { |
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7
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7
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13
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my $self = shift; |
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7
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105
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$self->out_pdf_obj->mediabox( |
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$self->orig_width, |
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$self->orig_height, |
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); |
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7
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823
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my $total_pages = $self->total_pages; |
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7
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156
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my $signature = $self->computed_signature; |
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7
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28
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my $max_page = $self->total_output_pages; |
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7
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15
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my $needed = $max_page - $total_pages; |
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7
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50
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22
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die "negative number of needed pages, this is a bug" if $needed < 0; |
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7
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my @sequence = (1 .. $total_pages); |
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7
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100
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20
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if ($needed) { |
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6
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8
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my $last; |
77
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6
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100
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90
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if ($self->cover) { |
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5
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31
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$last = pop @sequence; |
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} |
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6
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while ($needed > 0) { |
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push @sequence, undef; |
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18
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32
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$needed--; |
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} |
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6
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100
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21
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push @sequence, $last if $last; |
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} |
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7
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50
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19
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die "Something went off" if @sequence != $max_page; |
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7
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16
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foreach my $pageno (@sequence) { |
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68
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11199
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my $page = $self->out_pdf_obj->page; |
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68
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18972
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my $gfx = $page->gfx; |
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68
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100
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7068
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if (my $chunk = $self->get_imported_page($pageno)) { |
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50
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1595581
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$gfx->formimage($chunk, 0, 0); |
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} |
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} |
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} |
95
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96
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=head1 INTERNALS |
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98
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=head2 cropmarks_options |
99
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100
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Disable signature. |
101
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102
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=cut |
103
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104
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sub cropmarks_options { |
105
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2
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2
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1
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4
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my $self = shift; |
106
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2
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19
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my %options = ( |
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top => 1, |
108
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bottom => 1, |
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inner => 1, |
110
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outer => 1, |
111
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# no shifting need |
112
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twoside => 0, |
113
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); |
114
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2
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50
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33
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33
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if ($self->signature and $self->pages_per_sheet > 1) { |
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0
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0
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$options{signature} = $self->computed_signature; |
116
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} |
117
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else { |
118
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2
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31
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$options{signature} = 0; |
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} |
120
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121
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2
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42
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return %options; |
122
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} |
123
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124
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1; |