[3] | 1 | # |
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| 2 | # Copyright (c) 2004-2007 - Consultas, PKG.fr |
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| 3 | # |
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| 4 | # This file is part of A2P. |
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| 5 | # |
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| 6 | # A2P is free software; you can redistribute it and/or modify |
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| 7 | # it under the terms of the GNU General Public License as published by |
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| 8 | # the Free Software Foundation; either version 2 of the License, or |
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| 9 | # (at your option) any later version. |
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| 10 | # |
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| 11 | # A2P is distributed in the hope that it will be useful, |
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| 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | # GNU General Public License for more details. |
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| 15 | # |
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| 16 | # You should have received a copy of the GNU General Public License |
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| 17 | # along with A2P; if not, write to the Free Software |
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| 18 | # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 19 | # |
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| 20 | # $Id: IOB.pm 3 2007-10-18 16:20:19Z root $ |
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| 21 | # |
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| 22 | # Class to export Include Object members |
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| 23 | # |
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| 24 | # cf ref #1, p. 92 & ref #2, p. 180 |
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| 25 | # |
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| 26 | |
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| 27 | package AFPDS::MODCA::IOB ; |
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| 28 | |
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| 29 | use strict ; |
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| 30 | use GD ; |
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| 31 | use A2P::Globals ; |
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| 32 | use A2P::Syslog ; |
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| 33 | use AFPDS::MODCA::Common ; |
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| 34 | |
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| 35 | BEGIN { |
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| 36 | our $VERSION = sprintf "%s", q$Rev: 1172 $ =~ /([0-9.]+)\s+/ ; |
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| 37 | } |
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| 38 | our $VERSION ; |
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| 39 | our @ISA = ("AFPDS::MODCA"); |
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| 40 | our $IDENTS ; |
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| 41 | |
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| 42 | sub _ID { 0xD3AFC3 } |
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| 43 | |
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| 44 | sub _supported_triplets { |
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| 45 | return [], [ |
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| 46 | 0x10, # Mandatory object classification only if object type is 0x92 |
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| 47 | 0x4B, # Measurement units mandatory if coordinates are overrided |
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| 48 | # 0x01, # Coded charset GID |
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| 49 | # 0x02, # FQN |
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| 50 | # 0x04, # Mapping option |
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| 51 | # 0x4C, # object area size |
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| 52 | # 0x4E, # color specs |
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| 53 | # 0x70, # presentation space reset mixing |
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| 54 | # 0x71, # presentation space mixing rules |
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| 55 | ]; |
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| 56 | } |
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| 57 | |
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| 58 | sub new { |
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| 59 | my $class = shift ; |
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| 60 | &Debug("new " . __PACKAGE__ . " v$VERSION object"); |
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| 61 | |
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| 62 | my $self = { |
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| 63 | FLUX => 0, # Associated flux |
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| 64 | IDENT => _ID, # MO:DCA identity |
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| 65 | FLAG => 0, # MO:DCA flags |
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| 66 | RESERVED => 0, # MO:DCA reserved |
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| 67 | LONG => 0, # MO:DCA buffer length |
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| 68 | BUFFER => '' # MO:DCA content buffer |
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| 69 | }; |
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| 70 | |
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| 71 | return bless $self , $class ; |
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| 72 | } |
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| 73 | |
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| 74 | sub validate { |
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| 75 | my $self = shift ; |
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| 76 | |
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| 77 | &Debug("Found IOB to include object"); |
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| 78 | &UPSTAT('GET-RESOURCE-INCLUSION'); |
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| 79 | |
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| 80 | # Check minimal buffer size |
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| 81 | return ( 251, "IOB is malformed as too short (" . $self->{LONG} . "<28)" ) |
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| 82 | if ( $self->{LONG} < 28 ); |
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| 83 | |
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| 84 | # Check FLUX is a Flux object |
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| 85 | return ( 251, "IOB needs to be used with Flux object" ) |
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| 86 | unless ( ref($self->{FLUX}) =~ /^AFPDS::Flux$/ ); |
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| 87 | |
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| 88 | return () ; |
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| 89 | } |
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| 90 | |
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| 91 | sub create { |
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| 92 | my $self = shift ; |
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| 93 | |
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| 94 | # Set resource name |
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| 95 | my $resname = substr( $self->{BUFFER}, 0, 8 ); |
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| 96 | $resname = $self->convert( $resname ); |
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| 97 | return ( 252, "Invalid resource name found" ) unless $resname ; |
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| 98 | |
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| 99 | # Set resource name as member as it can be later overrided by X'02' triplet |
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| 100 | $self->name( $resname ); |
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| 101 | |
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| 102 | # Extract values |
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| 103 | my $zero = $self->get_from_buffer( 8, 1 ); |
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| 104 | my $ObjType = $self->get_from_buffer( 9, 1 ); |
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| 105 | my $XoaOset = $self->get_from_buffer( 10, 3 ); |
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| 106 | my $YoaOset = $self->get_from_buffer( 13, 3 ); |
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| 107 | my $XoaOrent = $self->get_from_buffer( 16, 2 ); |
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| 108 | my $YoaOrent = $self->get_from_buffer( 18, 2 ); |
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| 109 | my $XocaOset = $self->get_from_buffer( 20, 3 ); |
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| 110 | my $YocaOset = $self->get_from_buffer( 23, 3 ); |
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| 111 | my $RefCSys = $self->get_from_buffer( 26, 1 ); |
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| 112 | |
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| 113 | # Analyse offsets |
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| 114 | unless ( $XoaOset == 0xFFFFFF ) { |
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| 115 | # This is a signed number |
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| 116 | $XoaOset -= 0x1000000 if ( $XoaOset > 0x7FFFFF ); |
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| 117 | |
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| 118 | # Check and set X off-set |
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| 119 | return ( 252, "Found bad IOB XoaOset ($XoaOset)" ) |
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| 120 | if ( $XoaOset < -32768 or $XoaOset > 32767 ); |
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| 121 | } |
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| 122 | unless ( $YoaOset == 0xFFFFFF ) { |
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| 123 | # This is a signed number |
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| 124 | $YoaOset -= 0x1000000 if ( $YoaOset > 0x7FFFFF ); |
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| 125 | |
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| 126 | # Check and set X off-set |
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| 127 | return ( 252, "Found bad IOB YoaOset ($YoaOset)" ) |
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| 128 | if ( $YoaOset < -32768 or $YoaOset > 32767 ); |
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| 129 | } |
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| 130 | unless ( $XocaOset == 0xFFFFFF ) { |
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| 131 | # This is a signed number |
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| 132 | $XocaOset -= 0x1000000 if ( $XocaOset > 0x7FFFFF ); |
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| 133 | |
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| 134 | # Check and set X off-set |
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| 135 | return ( 252, "Found bad IOB XocaOset ($XocaOset)" ) |
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| 136 | if ( $XocaOset < -32768 or $XocaOset > 32767 ); |
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| 137 | } |
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| 138 | unless ( $YocaOset == 0xFFFFFF ) { |
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| 139 | # This is a signed number |
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| 140 | $YocaOset -= 0x1000000 if ( $YocaOset > 0x7FFFFF ); |
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| 141 | |
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| 142 | # Check and set X off-set |
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| 143 | return ( 252, "Found bad IOB YocaOset ($YocaOset)" ) |
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| 144 | if ( $YocaOset < -32768 or $YocaOset > 32767 ); |
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| 145 | } |
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| 146 | |
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| 147 | # Check invalid values |
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| 148 | return ( 252, "Invalid reserved value in IOB ($zero)" ) |
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| 149 | if ( $zero ); |
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| 150 | return ( 252, "Invalid object type in IOB ($ObjType)" ) |
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| 151 | unless ( $ObjType == 0x92 or $ObjType == 0x5F or $ObjType == 0xBB |
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| 152 | or $ObjType == 0xEB or $ObjType == 0xFB ); |
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| 153 | |
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| 154 | # Check supported orientation |
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| 155 | return ( 252, "Unsupported orientation found in IOB ($XoaOrent;$YoaOrent)" ) |
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| 156 | unless ( $XoaOrent == 0x0000 and $YoaOrent == 0x2D00 ); |
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| 157 | |
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| 158 | # Check supported system reference |
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| 159 | return ( 252, "Unsupported RefCSys found in IOB ($RefCSys)" ) |
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| 160 | unless ( $RefCSys == 0x01 ); |
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| 161 | |
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| 162 | # Analyse now authorized triplets as it is mandatory |
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| 163 | my @err = $self->check_triplets(substr( $self->{BUFFER}, 27 )); |
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| 164 | return @err if @err ; |
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| 165 | |
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| 166 | # Set a default resolution if not set |
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| 167 | $self->{RESOLUTION} = 240 unless (exists($self->{RESOLUTION})); |
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| 168 | |
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| 169 | # Get current resolution |
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| 170 | my $reso = $self->{RESOLUTION} ; |
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| 171 | |
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| 172 | # Update resname if update by triplet X'02', and set it with resolution |
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| 173 | $resname = $self->name ; |
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| 174 | |
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| 175 | # Check container is opened in flux |
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| 176 | my $flux = $self->{FLUX} ; |
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| 177 | my $container = $flux->get_resource($resname); |
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| 178 | return ( 252, "Resource '$resname' not available" ) |
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| 179 | unless ( $container and ref($container) =~ /^AFPDS::MODCA/ ); |
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| 180 | |
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| 181 | # Validate the expected structure of BOC |
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| 182 | my $struct = $container->{STRUCT} || 0 ; |
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| 183 | return ( 253, "Unexpected '$struct' structure found for BOC object" ) |
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| 184 | unless ( $struct == 0xDC00 ); |
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| 185 | |
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| 186 | # Validate the expected structure of ourself |
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| 187 | $struct = $self->{STRUCT} || 0 ; |
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| 188 | return ( 253, "Unexpected '$struct' structure found for IOB object" ) |
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| 189 | unless ( $struct == 0xA800 ); |
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| 190 | |
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| 191 | if ( $ObjType == 0x92 ) { |
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| 192 | return ( 252, "No OID found in object container for IOB" ) |
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| 193 | unless ( exists($container->{OID}) and $container->{OID} ); |
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| 194 | |
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| 195 | # Check triplet X'10' has been set as mandatory here and match container |
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| 196 | return ( 252, "No OID found in object inclusion with IOB" ) |
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| 197 | unless ( exists($self->{OID}) and $self->{OID} ); |
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| 198 | return ( 253, "OID included is different from container" ) |
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| 199 | unless ( $container->{OID} eq $self->{OID} ); |
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| 200 | |
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| 201 | # Check specified class in triplet X'10' |
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| 202 | my $class = $self->{CLASS} || 0 ; |
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| 203 | return ( 253, "Unexpected '$class' class found for IOB object" ) |
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| 204 | unless ( $class == 0x01 ); |
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| 205 | |
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| 206 | # Check origins are not set for the object |
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| 207 | return ( 253, "Origin offset not allowed for this IOB object" ) |
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| 208 | if ( $XocaOset or $YocaOset ); |
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| 209 | |
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| 210 | # Reset to default offsets for the object if not set |
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| 211 | $XoaOset = 0 if ( $XoaOset == 0xFFFFFF ); |
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| 212 | $YoaOset = 0 if ( $YoaOset == 0xFFFFFF ); |
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| 213 | |
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| 214 | # OID is validated, now we only need to handle supported format |
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| 215 | |
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| 216 | # Get eventually still converted image |
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| 217 | my $teximage = $container->teximage( $reso ) ; |
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| 218 | |
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| 219 | # Cancel convertion if image is still converted |
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| 220 | unless ( $teximage ) { |
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| 221 | &Debug("Converting $resname resource from $self->{FORMAT} format"); |
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| 222 | |
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| 223 | return ( 254, "Can't process empty $self->{FORMAT} for $resname" ) |
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| 224 | unless ( defined($container->{RESOURCE_BUFFER}) |
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| 225 | and length($container->{RESOURCE_BUFFER}) > 0 ); |
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| 226 | |
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| 227 | my $image = $self->get_image( \$container->{RESOURCE_BUFFER} ); |
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| 228 | |
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| 229 | return ( 254, "Unsupported $self->{FORMAT} format for $resname" ) |
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| 230 | unless ( defined($image) ); |
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| 231 | |
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| 232 | return ( 254, "Can't convert $resname resource" ) |
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| 233 | unless ( $image ); |
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| 234 | |
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| 235 | # Get the TeX name for the inclusion directive |
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| 236 | my $texname = $flux->resource_texname($resname); |
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| 237 | return ( 254, "TeX compatible name not set for $resname resource" ) |
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| 238 | unless ( defined($texname) and $texname ); |
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| 239 | |
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| 240 | # Tag texname with resolution |
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| 241 | my $tag = $reso ; |
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| 242 | $tag =~ y/0-9/A-J/ ; |
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| 243 | $texname .= 'at' . $tag ; |
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| 244 | |
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| 245 | # Get the resource number for the PCL inclusion macro |
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| 246 | my $number = $flux->resource_number( $resname, $reso ) ; |
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| 247 | return ( 254, "PCL number not set for $resname resource" ) |
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| 248 | unless ( defined($number) ); |
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| 249 | return ( 254, "Bad $number PCL number for $resname resource" ) |
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| 250 | unless ( $number > -1 and $number < 32768 ); |
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| 251 | |
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| 252 | # Convert image for TeX/LaTeX inclusion |
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| 253 | $teximage = $self->convert_image( $texname, $image, |
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| 254 | \$container->{RESOURCE_BUFFER}, $number, $reso ); |
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| 255 | return ( 254, "Can't convert $resname resource for TeX/LaTeX" ) |
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| 256 | unless ( defined($teximage) and $teximage and @{$teximage} ); |
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| 257 | |
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| 258 | # Insert TeX/LaTeX directive definitions to allow inclusion |
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| 259 | $flux->addline( '{%', @{$teximage}, '}%' ) ; |
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| 260 | |
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| 261 | # Keep converted image inclusion in container |
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| 262 | $teximage = $container->teximage( $reso, $texname ); |
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| 263 | } |
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| 264 | |
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| 265 | # Prepare array of Tex/LaTeX lines |
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| 266 | my @texlines = ( "{% $teximage inclusion as $resname at $reso dpi" ) ; |
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| 267 | |
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| 268 | # TODO Offset should be absolute in the AFP standard |
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| 269 | push @texlines, |
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| 270 | "\\PAGEPUT{\\XX\\kern$XoaOset\\Xunit}{\\YY\\kern$YoaOset\\Yunit}{" . |
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| 271 | "\\$teximage}%", |
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| 272 | "}%" ; |
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| 273 | |
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| 274 | # Add TeX/LaTeX code to flux for the inclusion |
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| 275 | $flux->addline(@texlines) ; |
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| 276 | |
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| 277 | } elsif ( $ObjType == 0x5F ) { |
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| 278 | return ( 252, "Unsupported Page Segment ObjType found in IOB" ); |
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| 279 | |
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| 280 | } elsif ( $ObjType == 0xBB ) { |
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| 281 | return ( 252, "Unsupported GOCA Graphics ObjType found in IOB" ); |
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| 282 | |
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| 283 | } elsif ( $ObjType == 0xEB ) { |
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| 284 | return ( 252, "Unsupported BCOCA Bar Code ObjType found in IOB" ); |
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| 285 | |
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| 286 | } elsif ( $ObjType == 0xFB ) { |
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| 287 | return ( 252, "Unsupported IOCA Image ObjType found in IOB" ); |
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| 288 | |
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| 289 | } else { |
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| 290 | return ( 252, "Unsupported ObjType found in IOB ($ObjType)" ); |
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| 291 | } |
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| 292 | |
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| 293 | return () ; |
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| 294 | } |
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| 295 | |
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| 296 | sub get_image { |
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| 297 | my $self = shift ; |
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| 298 | return 0 unless ( exists($self->{FORMAT}) and $self->{FORMAT} ); |
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| 299 | |
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| 300 | my $dataref = shift ; |
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| 301 | return 0 unless ( defined($dataref) and $dataref ); |
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| 302 | |
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| 303 | if ( $self->{FORMAT} eq 'GIF' ) { |
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| 304 | return GD::Image->newFromGifData( $$dataref ); |
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| 305 | } |
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| 306 | |
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| 307 | # No supported format |
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| 308 | return undef ; |
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| 309 | } |
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| 310 | |
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| 311 | ###################### Image convertion to TeX/LaTeX inclusion code |
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| 312 | sub convert_image { |
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| 313 | my $self = shift ; |
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| 314 | # We must be called with 4 defined arguments |
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| 315 | return undef unless ( map { defined($_) and $_ } @_[0..3] == 4 ); |
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| 316 | my $name = shift ; |
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| 317 | my $image = shift ; |
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| 318 | my $gifref = shift ; |
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| 319 | my $number = shift ; |
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| 320 | my $reso = shift ; |
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| 321 | |
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| 322 | my ( $width , $height ) = ( $image->width, $image->height ); |
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| 323 | |
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| 324 | # Open TeX/LaTeX global directive declaration with given name |
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| 325 | my @lines = ( |
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| 326 | "\\global\\def\\" . $name . "{% as " . $self->name . " at $reso dpi" |
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| 327 | ) ; |
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| 328 | |
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| 329 | # In case of PDF, we could prepare the resource as PNG image to include |
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| 330 | my $flux = $self->{FLUX} ; |
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| 331 | my $pdf = $flux->getEnv('DO_PDF') =~ /^yes$/i ? 1 : 0 ; |
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| 332 | if ( $pdf ) { |
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| 333 | # Get the image as PNG with compression |
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| 334 | my $png = $image->png($PNGCOMPRESSION); |
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| 335 | |
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| 336 | # Create the PNG file |
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| 337 | my ( $pngname ) = $flux->getoutbase =~ m|^(.*)/[^/]+$| ; |
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| 338 | $pngname .= '/' . $name . '.png' ; |
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| 339 | |
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| 340 | # Add PNG image to resource to clean |
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| 341 | $flux->toclean( $pngname ); |
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| 342 | |
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| 343 | unless ( open PNG, '>', $pngname ) { |
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| 344 | &Error("Can't open file $pngname for writing: $!"); |
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| 345 | return 0 ; |
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| 346 | } |
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| 347 | binmode(PNG); |
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| 348 | print PNG $png ; |
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| 349 | close(PNG); |
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| 350 | |
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| 351 | # Insert TeX/LaTeX code for PDF image inclusion |
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| 352 | unshift @lines, |
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| 353 | "\\ifpdf%", |
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| 354 | "\\pdfimageresolution" . $reso . "%", |
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| 355 | "\\pdfximage{$name.png}%", |
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| 356 | "\\newcount\\ximage$name%", |
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| 357 | "\\global\\ximage$name=\\pdflastximage%", |
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| 358 | "\\fi% End pdf inclusion preparation" ; |
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| 359 | |
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| 360 | # Add TeX/LaTeX for PDF inclusion |
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| 361 | push @lines, |
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| 362 | "\\if\\pcloutput0%", |
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| 363 | "\\ifpdf%", |
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| 364 | "\\ifx\\ximage$name\\undefined\\else%", |
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| 365 | "\\message{PNG[" . $self->name . "]}%", |
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| 366 | "\\pdfrefximage\\ximage$name%", |
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| 367 | "\\fi\\fi%", |
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| 368 | "\\else% End pdf case" ; |
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| 369 | } |
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| 370 | |
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| 371 | # Handle PCL case |
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| 372 | my $pcl = $flux->getEnv('DO_PCL') =~ /^yes$/i ? 1 : 0 ; |
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| 373 | $pcl = $flux->getEnv('DO_VPCL') =~ /^yes$/i ? 1 : 0 |
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| 374 | unless $pcl ; |
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| 375 | |
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| 376 | if ( $pcl and ! $ONLY_DO_PDF ) { |
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| 377 | # Create the PCL file |
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| 378 | my ( $pclname ) = $flux->getoutbase =~ m|^(.*)/[^/]+$| ; |
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| 379 | $pclname .= '/' . $name . '.pcl' ; |
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| 380 | |
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| 381 | # Add PCL resource as to be cleaned |
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| 382 | $flux->toclean( $pclname ); |
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| 383 | |
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| 384 | # Check PCL_RESOLUTION environment with a configuration default |
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| 385 | my $resolution = $flux->getEnv('PCL_RESOLUTION') || $PCL_RESOLUTION ; |
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| 386 | |
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| 387 | # Update the width/height resource expected with the defined resolution |
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| 388 | my $newwidth = int( $width * $resolution / $reso ) ; |
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| 389 | my $newheight = int( $height * $resolution / $reso ) ; |
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| 390 | |
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| 391 | # Prepare the command to start for PCL resource generation |
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| 392 | &Debug("Scaling resource from $width to $newwidth in PCL conversion"); |
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| 393 | my $command = sprintf( $GIFTOPCL, $newwidth, $resolution ); |
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| 394 | &Debug("Scaling resource with '$command' command") |
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| 395 | if $ADVANCED_DEBUGGING ; |
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| 396 | |
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| 397 | # Finally the PCL flux is output in a file to be included later |
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| 398 | $command .= " > '$pclname'" ; |
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| 399 | |
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| 400 | unless ( open PCL, '|' . $command ) { |
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| 401 | &Error("Can't use '$command' for execution: $!"); |
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| 402 | return 0 ; |
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| 403 | } |
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| 404 | print PCL $$gifref ; |
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| 405 | close(PCL); |
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| 406 | |
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| 407 | # Insert TeX/LaTeX code for RAW image inclusion |
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| 408 | unshift @lines, |
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| 409 | "\\if\\pcloutput1%", |
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| 410 | # Specify the macro ID to use and start the macro |
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| 411 | '\\special{pcl5="&f' . $number . 'y0X" ' . |
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| 412 | # Set the raster resource width/height |
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| 413 | 'pcl5="*r'. $newwidth .'s'. $newheight .'T" ' . |
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| 414 | "$name.pcl}%", # Include PCL code for the resource |
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| 415 | '\\special{pcl5="&f1X"}%', # Stop the macro |
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| 416 | # Set the global TeX/LaTeX definition |
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| 417 | '\\global\\def\\pclimage' . $name . "{%", |
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| 418 | '\\special{pcl5="&f0s' . # Store the PCL current position |
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| 419 | # Specify the macro ID to use, call it and restore the PCL position |
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| 420 | $number . 'y3x1S"}%', |
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| 421 | "}\\fi% End pcl inclusion preparation" ; |
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| 422 | |
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| 423 | # Add TeX/LaTeX for PCL inclusion |
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| 424 | push @lines, |
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| 425 | "\\message{PCL[" . $self->name . "]}%", |
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| 426 | "\\pclimage" . $name . "%" ; |
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| 427 | } |
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| 428 | |
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| 429 | # Close TeX/LaTeX if condition if pdf required |
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| 430 | push @lines, "\\fi% End pcl case" if $pdf ; |
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| 431 | |
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| 432 | push @lines, "}% End of $name as " . $self->name . " resource" ; |
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| 433 | |
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| 434 | return \@lines ; |
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| 435 | } |
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| 436 | |
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| 437 | &Debug("Module " . __PACKAGE__ . " v$VERSION loaded"); |
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| 438 | |
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| 439 | ( $IDENTS->{&_ID} ) = __PACKAGE__ =~ /(\w+)$/ ; |
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