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package PDF::Builder::Resource::CIDFont; |
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use base 'PDF::Builder::Resource::BaseFont'; |
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use strict; |
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use warnings; |
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our $VERSION = '3.024'; # VERSION |
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our $LAST_UPDATE = '3.024'; # manually update whenever code is changed |
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use Encode qw(:all); |
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use PDF::Builder::Basic::PDF::Utils; |
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use PDF::Builder::Util; |
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=head1 NAME |
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PDF::Builder::Resource::CIDFont - Base class for CID fonts |
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=head1 METHODS |
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=over |
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=item $font = PDF::Builder::Resource::CIDFont->new($pdf, $name) |
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Returns a cid-font object, base class for all CID-based fonts. |
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=cut |
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sub new { |
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my ($class, $pdf, $name, %opts) = @_; |
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$class = ref($class) if ref($class); |
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my $self = $class->SUPER::new($pdf, $name); |
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$pdf->new_obj($self) if defined($pdf) && !$self->is_obj($pdf); |
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$self->{'Type'} = PDFName('Font'); |
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$self->{'Subtype'} = PDFName('Type0'); |
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$self->{'Encoding'} = PDFName('Identity-H'); |
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my $de = PDFDict(); |
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$pdf->new_obj($de); |
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$self->{'DescendantFonts'} = PDFArray($de); |
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$de->{'Type'} = PDFName('Font'); |
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$de->{'CIDSystemInfo'} = PDFDict(); |
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$de->{'CIDSystemInfo'}->{'Registry'} = PDFString('Adobe', 'x'); |
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$de->{'CIDSystemInfo'}->{'Ordering'} = PDFString('Identity', 'x'); |
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$de->{'CIDSystemInfo'}->{'Supplement'} = PDFNum(0); |
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$de->{'CIDToGIDMap'} = PDFName('Identity'); |
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$self->{' de'} = $de; |
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return $self; |
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} |
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sub glyphByCId { |
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my ($self, $gid) = @_; |
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return $self->data()->{'g2n'}->[$gid]; |
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} |
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sub uniByCId { |
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my ($self, $gid) = @_; |
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my $uni = $self->data()->{'g2u'}->[$gid]; |
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# fallback to U+0000 if no match |
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$uni = 0 unless defined $uni; |
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return $uni; |
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} |
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# TBD note that cidByUni has been seen returning 'undef' in some cases. |
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# be sure to handle this! |
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sub cidByUni { |
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my ($self, $gid) = @_; |
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return $self->data()->{'u2g'}->{$gid}; |
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} |
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sub cidByEnc { |
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my ($self, $gid) = @_; |
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return $self->data()->{'e2g'}->[$gid]; |
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} |
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sub wxByCId { |
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my ($self, $g) = @_; |
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85
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my $w; |
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my $widths = $self->data()->{'wx'}; |
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if (ref($widths) eq 'ARRAY' && defined $widths->[$g]) { |
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$w = int($widths->[$g]); |
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} elsif (ref($widths) eq 'HASH' && defined $widths->{$g}) { |
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$w = int($widths->{$g}); |
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} else { |
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$w = $self->missingwidth(); |
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} |
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return $w; |
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} |
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sub wxByUni { |
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my ($self, $gid) = @_; |
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return $self->wxByCId($self->data()->{'u2g'}->{$gid}); |
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} |
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104
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sub wxByEnc { |
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my ($self, $gid) = @_; |
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return $self->wxByCId($self->data()->{'e2g'}->[$gid]); |
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} |
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109
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sub width { |
110
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my ($self, $text) = @_; |
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return $self->width_cid($self->cidsByStr($text)); |
112
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} |
113
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114
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sub width_cid { |
115
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my ($self, $text) = @_; |
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117
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my $width = 0; |
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0
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my $lastglyph = 0; |
119
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foreach my $n (unpack('n*', $text)) { |
120
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$width += $self->wxByCId($n); |
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0
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if ($self->{'-dokern'} && $self->haveKernPairs()) { |
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if ($self->kernPairCid($lastglyph, $n)) { |
123
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$width -= $self->kernPairCid($lastglyph, $n); |
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} |
125
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} |
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$lastglyph = $n; |
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} |
128
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0
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$width /= 1000; |
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return $width; |
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} |
131
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132
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=item $cidstring = $font->cidsByStr($string) |
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134
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Returns the cid-string from string based on the font's encoding map. |
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136
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=cut |
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138
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sub _cidsByStr { |
139
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0
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my ($self, $s) = @_; |
140
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141
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$s = pack('n*', map { $self->cidByEnc($_) } unpack('C*', $s)); |
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142
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return $s; |
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} |
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145
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sub cidsByStr { |
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my ($self, $text) = @_; |
147
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148
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if (utf8::is_utf8($text) && |
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149
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defined $self->data()->{'decode'} && |
150
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$self->data()->{'decode'} ne 'ident') { |
151
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$text = encode($self->data()->{'decode'}, $text); |
152
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} elsif (utf8::is_utf8($text) && |
153
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defined $self->data()->{'decode'} && |
154
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$self->data()->{'decode'} eq 'ident') { |
155
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$text = $self->cidsByUtf($text); |
156
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} elsif (!utf8::is_utf8($text) && |
157
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defined $self->data()->{'encode'} && |
158
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defined $self->data()->{'decode'} && |
159
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$self->data()->{'decode'} eq 'ident') { |
160
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0
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$text = $self->cidsByUtf(decode($self->data()->{'encode'}, $text)); |
161
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} elsif (!utf8::is_utf8($text) && |
162
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$self->can('issymbol') && |
163
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$self->issymbol() && |
164
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defined $self->data()->{'decode'} && |
165
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$self->data()->{'decode'} eq 'ident') { |
166
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0
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$text = pack('U*', (map { $_+0xf000 } unpack('C*', $text))); |
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0
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167
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0
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$text = $self->cidsByUtf($text); |
168
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} else { |
169
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0
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$text = $self->_cidsByStr($text); |
170
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} |
171
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0
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return $text; |
172
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} |
173
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174
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=item $cidstring = $font->cidsByUtf($utf8string) |
175
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176
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Returns the CID-encoded string from utf8-string. |
177
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178
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=cut |
179
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180
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sub cidsByUtf { |
181
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0
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0
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1
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my ($self, $s) = @_; |
182
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183
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$s = pack('n*', |
184
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0
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0
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map { $self->cidByUni($_)||0 } |
185
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(map { |
186
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0
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0
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0
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($_ and $_>0x7f and $_<0xA0)? uniByName(nameByUni($_)): $_ |
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0
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187
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} |
188
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unpack('U*', $s))); |
189
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190
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0
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utf8::downgrade($s); |
191
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0
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return $s; |
192
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} |
193
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194
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sub textByStr { |
195
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0
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0
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1
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my ($self, $text) = @_; |
196
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0
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return $self->text_cid($self->cidsByStr($text)); |
197
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} |
198
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199
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sub textByStrKern { |
200
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0
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0
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1
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my ($self, $text, $size, $indent) = @_; |
201
|
0
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|
return $self->text_cid_kern($self->cidsByStr($text), $size, $indent); |
202
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|
} |
203
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204
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sub text { |
205
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0
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0
|
0
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|
my ($self, $text, $size, $indent) = @_; |
206
|
|
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|
207
|
0
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|
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|
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|
my $newtext = $self->textByStr($text); |
208
|
0
|
0
|
0
|
|
|
|
if (defined $size && $self->{'-dokern'}) { |
|
|
0
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|
|
209
|
0
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|
$newtext = $self->textByStrKern($text, $size, $indent); |
210
|
0
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|
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|
return $newtext; |
211
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|
} elsif (defined $size) { |
212
|
0
|
0
|
0
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|
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|
if (defined($indent) && $indent!=0) { |
213
|
0
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|
return("[ $indent $newtext ] TJ"); |
214
|
|
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|
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|
} else { |
215
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0
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|
return "$newtext Tj"; |
216
|
|
|
|
|
|
|
} |
217
|
|
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} else { |
218
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0
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|
return $newtext; |
219
|
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|
} |
220
|
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|
} |
221
|
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222
|
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|
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|
|
sub text_cid { |
223
|
0
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|
|
0
|
0
|
|
my ($self, $text, $size) = @_; |
224
|
|
|
|
|
|
|
|
225
|
0
|
0
|
|
|
|
|
if ($self->can('fontfile')) { |
226
|
0
|
|
|
|
|
|
foreach my $g (unpack('n*', $text)) { |
227
|
0
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|
|
|
|
|
$self->fontfile()->subsetByCId($g); |
228
|
|
|
|
|
|
|
} |
229
|
|
|
|
|
|
|
} |
230
|
0
|
|
|
|
|
|
my $newtext = unpack('H*', $text); |
231
|
0
|
0
|
|
|
|
|
if (defined $size) { |
232
|
0
|
|
|
|
|
|
return "<$newtext> Tj"; |
233
|
|
|
|
|
|
|
} else { |
234
|
0
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|
|
|
|
|
return "<$newtext>"; |
235
|
|
|
|
|
|
|
} |
236
|
|
|
|
|
|
|
} |
237
|
|
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|
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|
|
238
|
|
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|
|
|
|
sub text_cid_kern { |
239
|
0
|
|
|
0
|
0
|
|
my ($self, $text, $size, $indent) = @_; |
240
|
|
|
|
|
|
|
|
241
|
0
|
0
|
|
|
|
|
if ($self->can('fontfile')) { |
242
|
0
|
|
|
|
|
|
foreach my $g (unpack('n*', $text)) { |
243
|
0
|
|
|
|
|
|
$self->fontfile()->subsetByCId($g); |
244
|
|
|
|
|
|
|
} |
245
|
|
|
|
|
|
|
} |
246
|
0
|
0
|
0
|
|
|
|
if (defined $size && $self->{'-dokern'} && $self->haveKernPairs()) { |
|
|
0
|
0
|
|
|
|
|
247
|
0
|
|
|
|
|
|
my $newtext = ' '; |
248
|
0
|
|
|
|
|
|
my $lastglyph = 0; |
249
|
0
|
|
|
|
|
|
my $tBefore = 0; |
250
|
0
|
|
|
|
|
|
foreach my $n (unpack('n*', $text)) { |
251
|
0
|
0
|
|
|
|
|
if ($self->kernPairCid($lastglyph, $n)) { |
252
|
0
|
0
|
|
|
|
|
$newtext .= '> ' if $tBefore; |
253
|
0
|
|
|
|
|
|
$newtext .= sprintf('%i ', $self->kernPairCid($lastglyph, $n)); |
254
|
0
|
|
|
|
|
|
$tBefore = 0; |
255
|
|
|
|
|
|
|
} |
256
|
0
|
|
|
|
|
|
$lastglyph = $n; |
257
|
0
|
|
|
|
|
|
my $t = sprintf('%04X', $n); |
258
|
0
|
0
|
|
|
|
|
$newtext .= '<' unless $tBefore; |
259
|
0
|
|
|
|
|
|
$newtext .= $t; |
260
|
0
|
|
|
|
|
|
$tBefore = 1; |
261
|
|
|
|
|
|
|
} |
262
|
0
|
0
|
|
|
|
|
$newtext .= '> ' if $tBefore; |
263
|
0
|
0
|
0
|
|
|
|
if (defined($indent) && $indent != 0) { |
264
|
0
|
|
|
|
|
|
return "[ $indent $newtext ] TJ"; |
265
|
|
|
|
|
|
|
} else { |
266
|
0
|
|
|
|
|
|
return "[ $newtext ] TJ"; |
267
|
|
|
|
|
|
|
} |
268
|
|
|
|
|
|
|
} elsif (defined $size) { |
269
|
0
|
|
|
|
|
|
my $newtext = unpack('H*', $text); |
270
|
0
|
0
|
0
|
|
|
|
if (defined($indent) && $indent != 0) { |
271
|
0
|
|
|
|
|
|
return "[ $indent <$newtext> ] TJ"; |
272
|
|
|
|
|
|
|
} else { |
273
|
0
|
|
|
|
|
|
return "<$newtext> Tj"; |
274
|
|
|
|
|
|
|
} |
275
|
|
|
|
|
|
|
} else { |
276
|
0
|
|
|
|
|
|
my $newtext = unpack('H*', $text); |
277
|
0
|
|
|
|
|
|
return "<$newtext>"; |
278
|
|
|
|
|
|
|
} |
279
|
|
|
|
|
|
|
} |
280
|
|
|
|
|
|
|
|
281
|
|
|
|
|
|
|
sub kernPairCid { |
282
|
0
|
|
|
0
|
0
|
|
return 0; |
283
|
|
|
|
|
|
|
} |
284
|
|
|
|
|
|
|
|
285
|
|
|
|
|
|
|
sub haveKernPairs { |
286
|
0
|
|
|
0
|
0
|
|
return 0; # PDF::API2 changed to just 'return;' |
287
|
|
|
|
|
|
|
} |
288
|
|
|
|
|
|
|
|
289
|
|
|
|
|
|
|
sub encodeByName { |
290
|
0
|
|
|
0
|
0
|
|
my ($self, $enc) = @_; |
291
|
|
|
|
|
|
|
|
292
|
0
|
0
|
|
|
|
|
return if $self->issymbol(); |
293
|
|
|
|
|
|
|
|
294
|
0
|
0
|
|
|
|
|
if (defined $enc) { |
295
|
|
|
|
|
|
|
$self->data()->{'e2u'} = [ |
296
|
0
|
0
|
0
|
|
|
|
map { ($_ and $_>0x7f and $_<0xA0)? uniByName(nameByUni($_)): $_ } |
|
0
|
|
|
|
|
|
|
297
|
|
|
|
|
|
|
unpack('U*', decode($enc, pack('C*', 0..255))) |
298
|
|
|
|
|
|
|
]; |
299
|
|
|
|
|
|
|
} |
300
|
|
|
|
|
|
|
$self->data()->{'e2n'} = [ |
301
|
0
|
0
|
0
|
|
|
|
map { $self->data()->{'g2n'}->[$self->data()->{'u2g'}->{$_} || 0] || '.notdef' } |
302
|
0
|
|
|
|
|
|
@{$self->data()->{'e2u'}} |
|
0
|
|
|
|
|
|
|
303
|
|
|
|
|
|
|
]; |
304
|
|
|
|
|
|
|
$self->data()->{'e2g'} = [ |
305
|
0
|
0
|
|
|
|
|
map { $self->data()->{'u2g'}->{$_} || 0 } |
306
|
0
|
|
|
|
|
|
@{$self->data()->{'e2u'}} |
|
0
|
|
|
|
|
|
|
307
|
|
|
|
|
|
|
]; |
308
|
|
|
|
|
|
|
|
309
|
0
|
|
|
|
|
|
$self->data()->{'u2e'} = {}; |
310
|
0
|
|
|
|
|
|
foreach my $n (reverse 0..255) { |
311
|
0
|
|
0
|
|
|
|
$self->data()->{'u2e'}->{$self->data()->{'e2u'}->[$n]} //= $n; |
312
|
|
|
|
|
|
|
} |
313
|
|
|
|
|
|
|
|
314
|
0
|
|
|
|
|
|
return $self; |
315
|
|
|
|
|
|
|
} |
316
|
|
|
|
|
|
|
|
317
|
|
|
|
|
|
|
sub subsetByCId { |
318
|
0
|
|
|
0
|
0
|
|
return 1; |
319
|
|
|
|
|
|
|
} |
320
|
|
|
|
|
|
|
|
321
|
|
|
|
|
|
|
sub subvec { |
322
|
0
|
|
|
0
|
0
|
|
return 1; |
323
|
|
|
|
|
|
|
} |
324
|
|
|
|
|
|
|
|
325
|
|
|
|
|
|
|
sub glyphNum { |
326
|
0
|
|
|
0
|
1
|
|
my $self = shift; |
327
|
|
|
|
|
|
|
|
328
|
0
|
0
|
|
|
|
|
if (defined $self->data()->{'glyphs'}) { |
329
|
0
|
|
|
|
|
|
return $self->data()->{'glyphs'}; |
330
|
|
|
|
|
|
|
} |
331
|
0
|
|
|
|
|
|
return scalar @{$self->data()->{'wx'}}; |
|
0
|
|
|
|
|
|
|
332
|
|
|
|
|
|
|
} |
333
|
|
|
|
|
|
|
|
334
|
|
|
|
|
|
|
#sub outobjdeep { |
335
|
|
|
|
|
|
|
# my ($self, $fh, $pdf, %opts) = @_; |
336
|
|
|
|
|
|
|
# |
337
|
|
|
|
|
|
|
# return $self->SUPER::outobjdeep($fh, $pdf, %opts); |
338
|
|
|
|
|
|
|
#} |
339
|
|
|
|
|
|
|
|
340
|
|
|
|
|
|
|
=back |
341
|
|
|
|
|
|
|
|
342
|
|
|
|
|
|
|
=cut |
343
|
|
|
|
|
|
|
|
344
|
|
|
|
|
|
|
1; |