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82 lines
1.9 KiB
PHP
82 lines
1.9 KiB
PHP
<?php
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/**
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* @package php-font-lib
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* @link https://github.com/PhenX/php-font-lib
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* @author Fabien Ménager <fabien.menager@gmail.com>
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* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
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*/
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namespace FontLib\WOFF;
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use FontLib\Table\Directory_Entry;
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/**
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* WOFF font file.
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*
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* @package php-font-lib
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*
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* @property Table_Directory_Entry[] $directory
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*/
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class File extends \FontLib\TrueType\File {
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function parseHeader() {
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if (!empty($this->header)) {
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return;
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}
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$this->header = new Header($this);
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$this->header->parse();
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}
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public function load($file) {
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parent::load($file);
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$this->parseTableEntries();
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$dataOffset = $this->pos() + count($this->directory) * 20;
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$fw = $this->getTempFile(false);
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$fr = $this->f;
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$this->f = $fw;
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$offset = $this->header->encode();
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foreach ($this->directory as $entry) {
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// Read ...
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$this->f = $fr;
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$this->seek($entry->offset);
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$data = $this->read($entry->length);
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if ($entry->length < $entry->origLength) {
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$data = gzuncompress($data);
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}
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// Prepare data ...
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$length = strlen($data);
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$entry->length = $entry->origLength = $length;
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$entry->offset = $dataOffset;
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// Write ...
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$this->f = $fw;
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// Woff Entry
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$this->seek($offset);
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$offset += $this->write($entry->tag, 4); // tag
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$offset += $this->writeUInt32($dataOffset); // offset
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$offset += $this->writeUInt32($length); // length
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$offset += $this->writeUInt32($length); // origLength
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$offset += $this->writeUInt32(Directory_Entry::computeChecksum($data)); // checksum
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// Data
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$this->seek($dataOffset);
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$dataOffset += $this->write($data, $length);
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}
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$this->f = $fw;
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$this->seek(0);
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// Need to re-parse this, don't know why
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$this->header = null;
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$this->directory = array();
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$this->parseTableEntries();
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}
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}
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