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package PDF::Template; |
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109919
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use strict; |
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BEGIN { |
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use PDF::Template::Base; |
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use vars qw ($VERSION @ISA); |
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$VERSION = '0.22'; |
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@ISA = qw (PDF::Template::Base); |
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} |
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949
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use pdflib_pl; |
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use File::Basename; |
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use IO::File; |
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3368
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use XML::Parser; |
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0
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#----------------------------------------------- |
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# TODO |
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#----------------------------------------------- |
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# PDF_set_info - find out more about this |
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# Providers - I need to create some provider classes that abstract |
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# the process of PDF creation. This will enable P::T to work with |
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# different PDF providers. A provider could be passed in to the |
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# constructor. If non is passed, P::T should try to instantiate a |
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# sensible provider depending on what is installed. |
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#----------------------------------------------- |
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sub new |
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{ |
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my $class = shift; |
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my $self = $class->SUPER::new(@_); |
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35
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$self->{TEMPLATES} = [] unless UNIVERSAL::isa($self->{TEMPLATES}, 'ARRAY'); |
36
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$self->{PARAM_MAP} = {} unless UNIVERSAL::isa($self->{PARAM_MAP}, 'HASH'); |
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38
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$self->{PDF_VERSION} = 0; |
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for my $version (reverse 1 .. 6) |
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{ |
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eval "UNIVERSAL::VERSION('pdflib_pl', $version.0)"; |
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unless ($@) |
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{ |
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$self->{PDF_VERSION} = $version; |
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last; |
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} |
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} |
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die "Cannot find pdflib_pl version",$/ unless $self->{PDF_VERSION}; |
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50
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$self->_validate_option($_) |
51
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for qw(OPENACTION OPENMODE); |
52
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53
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$self->parse_xml($self->{FILENAME}) if defined $self->{FILENAME}; |
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55
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return $self; |
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} |
57
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58
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sub param |
59
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{ |
60
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my $self = shift; |
61
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62
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# Allow an arbitrary number of hashrefs, so long as they're the first things |
63
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# into param(). Put each one onto the end, de-referenced. |
64
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push @_, %{shift @_} while UNIVERSAL::isa($_[0], 'HASH'); |
65
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66
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(@_ % 2) |
67
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&& die __PACKAGE__, "->param() : Odd number of parameters to param()\n"; |
68
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69
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my %params = @_; |
70
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$params{uc $_} = delete $params{$_} for keys %params; |
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@{$self->{PARAM_MAP}}{keys %params} = @params{keys %params}; |
72
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73
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return 1; |
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} |
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76
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sub write_file |
77
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{ |
78
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my $self = shift; |
79
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my ($fname) = @_; |
80
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81
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my $p = pdflib_pl::PDF_new(); |
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83
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pdflib_pl::PDF_open_file($p, $fname) == -1 |
84
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&& die "pdflib_pl::PDF_open_file could not open file '$fname'.", $/; |
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86
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$self->_prepare_output($p); |
87
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88
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pdflib_pl::PDF_close($p); |
89
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90
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return 1; |
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} |
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93
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sub output |
94
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{ |
95
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my $self = shift; |
96
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97
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$self->get_buffer(@_); |
98
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} |
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100
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sub get_buffer |
101
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{ |
102
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my $self = shift; |
103
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104
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my $p = pdflib_pl::PDF_new(); |
105
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106
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pdflib_pl::PDF_open_file($p, '') == -1 |
107
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&& die "pdflib_pl::PDF_open_file could not open buffer.", $/; |
108
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109
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$self->_prepare_output($p); |
110
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111
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pdflib_pl::PDF_close($p); |
112
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113
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return pdflib_pl::PDF_get_buffer($p); |
114
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} |
115
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116
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sub parse |
117
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{ |
118
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my $self = shift; |
119
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120
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$self->parse_xml(@_); |
121
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} |
122
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123
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sub parse_xml |
124
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{ |
125
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my $self = shift; |
126
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my ($fname) = @_; |
127
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128
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my %Has_TextObject = map { $_ => undef } qw( |
129
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BOOKMARK |
130
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IMAGE |
131
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TEXTBOX |
132
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); |
133
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134
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my ($filename, $dirname) = fileparse($fname); |
135
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136
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my @stack; |
137
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my $parser = XML::Parser->new( |
138
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Base => $dirname, |
139
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Handlers => { |
140
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Start => sub { |
141
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shift; |
142
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# { local $"="', '"; print "Start: '@_'\n"; } |
143
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my $name = uc shift; |
144
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145
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# Pass the PDF encoding in. |
146
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if ($name eq 'PDFTEMPLATE') |
147
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{ |
148
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if (exists $self->{PDF_ENCODING}) |
149
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{ |
150
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push @_, ( |
151
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PDF_ENCODING => $self->{PDF_ENCODING}, |
152
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); |
153
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} |
154
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} |
155
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156
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my $node = PDF::Template::Factory->create_node($name, @_); |
157
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die "'$name' (@_) didn't make a node!\n" unless defined $node; |
158
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159
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if ($name eq 'VAR') |
160
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{ |
161
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return unless @stack; |
162
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163
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if (exists $stack[-1]{TXTOBJ} && $stack[-1]{TXTOBJ}->isa('TEXTOBJECT')) |
164
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{ |
165
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push @{$stack[-1]{TXTOBJ}{STACK}}, $node; |
166
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} |
167
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} |
168
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elsif ($name eq 'PDFTEMPLATE') |
169
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{ |
170
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push @{$self->{TEMPLATES}}, $node; |
171
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} |
172
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else |
173
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{ |
174
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push @{$stack[-1]{ELEMENTS}}, $node |
175
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if @stack; |
176
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} |
177
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178
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push @stack, $node; |
179
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# print "Pushed $node onto stack\n"; |
180
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}, |
181
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Char => sub { |
182
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shift; |
183
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# { local $"="', '"; print "Char: '@_'\n"; } |
184
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return unless @stack; |
185
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186
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my $parent = $stack[-1]; |
187
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if (exists $parent->{TXTOBJ} && $parent->{TXTOBJ}->isa('TEXTOBJECT')) |
188
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{ |
189
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# print "Added '@_' to TextObject stack for '$parent'\n"; |
190
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push @{$parent->{TXTOBJ}{STACK}}, @_; |
191
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} |
192
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}, |
193
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End => sub { |
194
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shift; |
195
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# { local $"="', '"; print "End: '@_'\n"; } |
196
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return unless @stack; |
197
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198
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pop @stack if $stack[-1]->isa(uc $_[0]); |
199
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}, |
200
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}, |
201
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); |
202
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203
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{ |
204
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my $fh = IO::File->new($fname) |
205
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|| die "Cannot open '$fname' for reading: $!\n"; |
206
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207
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$parser->parse(do { local $/ = undef; <$fh> }); |
208
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209
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$fh->close; |
210
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} |
211
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212
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return 1; |
213
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} |
214
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215
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my %NoSetProperty = ( |
216
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'CreationDate' => 1, |
217
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'Producer' => 1, |
218
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'ModDate' => 1, |
219
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'Trapped' => 1, |
220
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); |
221
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222
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sub _prepare_output |
223
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{ |
224
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my $self = shift; |
225
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my ($p) = @_; |
226
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227
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pdflib_pl::PDF_set_parameter($p, 'openaction', $self->{OPENACTION}); |
228
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pdflib_pl::PDF_set_parameter($p, 'openmode', $self->{OPENMODE}); |
229
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230
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if (UNIVERSAL::isa($self->{INFO}, 'HASH')) |
231
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{ |
232
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foreach my $key ( keys %{$self->{INFO}} ) |
233
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{ |
234
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if ($NoSetProperty{$key}) |
235
|
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{ |
236
|
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warn "Document property '$key' cannot be set.", $/; |
237
|
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next; |
238
|
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} |
239
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240
|
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|
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pdflib_pl::PDF_set_info($p, $key, $self->{INFO}{$key}); |
241
|
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} |
242
|
|
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|
|
|
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} |
243
|
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|
else |
244
|
|
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|
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|
{ |
245
|
|
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|
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|
|
pdflib_pl::PDF_set_info($p, $_, __PACKAGE__) for qw/Creator Author/; |
246
|
|
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|
|
|
|
} |
247
|
|
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|
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248
|
|
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|
|
|
|
# __PAGE__ is incremented after the page is done. |
249
|
|
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|
|
|
|
$self->{PARAM_MAP}{__PAGE__} = 1; |
250
|
|
|
|
|
|
|
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251
|
|
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|
|
|
|
# __PAGEDEF__ is incremented when the pagedef begins. |
252
|
|
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|
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|
|
$self->{PARAM_MAP}{__PAGEDEF__} = 0; |
253
|
|
|
|
|
|
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|
254
|
|
|
|
|
|
|
my $context = PDF::Template::Factory->create( |
255
|
|
|
|
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|
|
'CONTEXT', |
256
|
|
|
|
|
|
|
# Un-scoped variables |
257
|
|
|
|
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|
|
X => 0, |
258
|
|
|
|
|
|
|
Y => 0, |
259
|
|
|
|
|
|
|
|
260
|
|
|
|
|
|
|
# Other variables |
261
|
|
|
|
|
|
|
PDF => $p, |
262
|
|
|
|
|
|
|
PARAM_MAP => [ $self->{PARAM_MAP} ], |
263
|
|
|
|
|
|
|
|
264
|
|
|
|
|
|
|
PDF_VERSION => $self->{PDF_VERSION}, |
265
|
|
|
|
|
|
|
DIE_ON_NO_PARAM => $self->{DIE_ON_NO_PARAM}, |
266
|
|
|
|
|
|
|
); |
267
|
|
|
|
|
|
|
|
268
|
|
|
|
|
|
|
# Do a first pass through, noting important values |
269
|
|
|
|
|
|
|
$_->preprocess($context) for @{$self->{TEMPLATES}}; |
270
|
|
|
|
|
|
|
|
271
|
|
|
|
|
|
|
# Do a second pass through, for actual rendering |
272
|
|
|
|
|
|
|
$_->render($context) for @{$self->{TEMPLATES}}; |
273
|
|
|
|
|
|
|
|
274
|
|
|
|
|
|
|
$context->close_images; |
275
|
|
|
|
|
|
|
|
276
|
|
|
|
|
|
|
return 1; |
277
|
|
|
|
|
|
|
} |
278
|
|
|
|
|
|
|
|
279
|
|
|
|
|
|
|
sub register { shift; PDF::Template::Factory::register(@_) } |
280
|
|
|
|
|
|
|
|
281
|
|
|
|
|
|
|
1; |
282
|
|
|
|
|
|
|
__END__ |