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124b42c9f1
Remove tcpdf because of improper CSS support and use Dompdf instead, to be able to generate pdfs that look similar to the html views refs #4356
478 lines
13 KiB
PHP
478 lines
13 KiB
PHP
<?php
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/**
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* @package dompdf
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* @link http://www.dompdf.com/
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* @author Benj Carson <benjcarson@digitaljunkies.ca>
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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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* @version $Id: attribute_translator.cls.php 448 2011-11-13 13:00:03Z fabien.menager $
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*/
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/**
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* Translates HTML 4.0 attributes into CSS rules
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*
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* @access private
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* @package dompdf
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*/
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class Attribute_Translator {
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static $_style_attr = "_html_style_attribute";
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// Munged data originally from
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// http://www.w3.org/TR/REC-html40/index/attributes.html
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// http://www.cs.tut.fi/~jkorpela/html2css.html
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static private $__ATTRIBUTE_LOOKUP = array(
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//'caption' => array ( 'align' => '', ),
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'img' => array(
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'align' => array(
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'bottom' => 'vertical-align: baseline;',
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'middle' => 'vertical-align: middle;',
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'top' => 'vertical-align: top;',
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'left' => 'float: left;',
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'right' => 'float: right;'
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),
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'border' => 'border-width: %0.2F px;',
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'height' => 'height: %s px;',
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'hspace' => 'padding-left: %1$0.2F px; padding-right: %1$0.2F px;',
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'vspace' => 'padding-top: %1$0.2F px; padding-bottom: %1$0.2F px;',
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'width' => 'width: %s px;',
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),
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'table' => array(
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'align' => array(
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'left' => 'margin-left: 0; margin-right: auto;',
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'center' => 'margin-left: auto; margin-right: auto;',
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'right' => 'margin-left: auto; margin-right: 0;'
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),
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'bgcolor' => 'background-color: %s;',
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'border' => '!set_table_border',
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'cellpadding' => '!set_table_cellpadding',//'border-spacing: %0.2F; border-collapse: separate;',
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'cellspacing' => '!set_table_cellspacing',
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'frame' => array(
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'void' => 'border-style: none;',
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'above' => 'border-top-style: solid;',
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'below' => 'border-bottom-style: solid;',
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'hsides' => 'border-left-style: solid; border-right-style: solid;',
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'vsides' => 'border-top-style: solid; border-bottom-style: solid;',
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'lhs' => 'border-left-style: solid;',
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'rhs' => 'border-right-style: solid;',
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'box' => 'border-style: solid;',
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'border' => 'border-style: solid;'
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),
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'rules' => '!set_table_rules',
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'width' => 'width: %s;',
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),
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'hr' => array(
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'align' => '!set_hr_align', // Need to grab width to set 'left' & 'right' correctly
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'noshade' => 'border-style: solid;',
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'size' => '!set_hr_size', //'border-width: %0.2F px;',
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'width' => 'width: %s;',
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),
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'div' => array(
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'align' => 'text-align: %s;',
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),
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'h1' => array(
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'align' => 'text-align: %s;',
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),
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'h2' => array(
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'align' => 'text-align: %s;',
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),
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'h3' => array(
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'align' => 'text-align: %s;',
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),
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'h4' => array(
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'align' => 'text-align: %s;',
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),
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'h5' => array(
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'align' => 'text-align: %s;',
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),
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'h6' => array(
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'align' => 'text-align: %s;',
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),
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'p' => array(
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'align' => 'text-align: %s;',
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),
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// 'col' => array(
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// 'align' => '',
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// 'valign' => '',
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// ),
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// 'colgroup' => array(
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// 'align' => '',
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// 'valign' => '',
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// ),
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'tbody' => array(
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'align' => '!set_table_row_align',
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'valign' => '!set_table_row_valign',
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),
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'td' => array(
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'align' => 'text-align: %s;',
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'bgcolor' => '!set_background_color',
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'height' => 'height: %s;',
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'nowrap' => 'white-space: nowrap;',
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'valign' => 'vertical-align: %s;',
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'width' => 'width: %s;',
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),
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'tfoot' => array(
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'align' => '!set_table_row_align',
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'valign' => '!set_table_row_valign',
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),
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'th' => array(
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'align' => 'text-align: %s;',
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'bgcolor' => '!set_background_color',
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'height' => 'height: %s;',
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'nowrap' => 'white-space: nowrap;',
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'valign' => 'vertical-align: %s;',
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'width' => 'width: %s;',
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),
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'thead' => array(
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'align' => '!set_table_row_align',
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'valign' => '!set_table_row_valign',
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),
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'tr' => array(
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'align' => '!set_table_row_align',
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'bgcolor' => '!set_table_row_bgcolor',
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'valign' => '!set_table_row_valign',
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),
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'body' => array(
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'background' => 'background-image: url(%s);',
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'bgcolor' => '!set_background_color',
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'link' => '!set_body_link',
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'text' => '!set_color',
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),
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'br' => array(
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'clear' => 'clear: %s;',
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),
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'basefont' => array(
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'color' => '!set_color',
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'face' => 'font-family: %s;',
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'size' => '!set_basefont_size',
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),
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'font' => array(
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'color' => '!set_color',
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'face' => 'font-family: %s;',
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'size' => '!set_font_size',
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),
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'dir' => array(
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'compact' => 'margin: 0.5em 0;',
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),
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'dl' => array(
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'compact' => 'margin: 0.5em 0;',
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),
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'menu' => array(
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'compact' => 'margin: 0.5em 0;',
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),
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'ol' => array(
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'compact' => 'margin: 0.5em 0;',
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'start' => 'counter-reset: -dompdf-default-counter %d;',
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'type' => 'list-style-type: %s;',
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),
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'ul' => array(
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'compact' => 'margin: 0.5em 0;',
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'type' => 'list-style-type: %s;',
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),
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'li' => array(
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'type' => 'list-style-type: %s;',
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'value' => 'counter-reset: -dompdf-default-counter %d;',
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),
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'pre' => array(
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'width' => 'width: %s;',
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),
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);
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static protected $_last_basefont_size = 3;
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static protected $_font_size_lookup = array(
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// For basefont support
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-3 => "4pt",
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-2 => "5pt",
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-1 => "6pt",
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0 => "7pt",
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1 => "8pt",
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2 => "10pt",
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3 => "12pt",
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4 => "14pt",
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5 => "18pt",
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6 => "24pt",
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7 => "34pt",
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// For basefont support
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8 => "48pt",
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9 => "44pt",
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10 => "52pt",
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11 => "60pt",
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);
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static function translate_attributes(Frame $frame) {
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$node = $frame->get_node();
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$tag = $node->tagName;
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if ( !isset(self::$__ATTRIBUTE_LOOKUP[$tag]) )
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return;
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$valid_attrs = self::$__ATTRIBUTE_LOOKUP[$tag];
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$attrs = $node->attributes;
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$style = rtrim($node->getAttribute(self::$_style_attr), "; ");
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if ( $style != "" )
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$style .= ";";
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foreach ($attrs as $attr => $attr_node ) {
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if ( !isset($valid_attrs[$attr]) )
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continue;
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$value = $attr_node->value;
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$target = $valid_attrs[$attr];
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// Look up $value in $target, if $target is an array:
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if ( is_array($target) ) {
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if ( isset($target[$value]) )
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$style .= " " . self::_resolve_target($node, $target[$value], $value);
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} else {
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// otherwise use target directly
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$style .= " " . self::_resolve_target($node, $target, $value);
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}
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}
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if ( !is_null($style) ) {
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$style = ltrim($style);
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$node->setAttribute(self::$_style_attr, $style);
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}
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}
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static protected function _resolve_target($node, $target, $value) {
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if ( $target[0] === "!" ) {
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// Function call
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$func = "_" . mb_substr($target, 1);
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return self::$func($node, $value);
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}
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return $value ? sprintf($target, $value) : "";
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}
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static function append_style(DOMNode $node, $new_style) {
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$style = rtrim($node->getAttribute(self::$_style_attr), ";");
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$style .= $new_style;
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$style = ltrim($style, ";");
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$node->setAttribute(self::$_style_attr, $style);
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}
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static protected function get_cell_list($node) {
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$xpath = new DOMXpath($node->ownerDocument);
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switch($node->nodeName) {
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case "table":
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$query = "tr/td | thead/tr/td | tbody/tr/td | tfoot/tr/td | tr/th | thead/tr/th | tbody/tr/th | tfoot/tr/th";
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break;
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case "tbody":
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case "tfoot":
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case "thead":
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$query = "tr/td | tr/th";
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break;
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case "tr":
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$query = "td | th";
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break;
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}
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return $xpath->query($query, $node);
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}
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//.....................................................................
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static protected function _get_valid_color($value) {
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if ( preg_match('/^#?([0-9A-F]{6})$/i', $value, $matches) ) {
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$value = "#$matches[1]";
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}
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return $value;
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}
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static protected function _set_color($node, $value) {
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$value = self::_get_valid_color($value);
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return "color: $value;";
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}
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static protected function _set_background_color($node, $value) {
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$value = self::_get_valid_color($value);
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return "background-color: $value;";
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}
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static protected function _set_table_cellpadding($node, $value) {
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$cell_list = self::get_cell_list($node);
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foreach ($cell_list as $cell) {
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self::append_style($cell, "; padding: {$value}px;");
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}
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return null;
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}
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static protected function _set_table_border($node, $value) {
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$cell_list = self::get_cell_list($node);
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foreach ($cell_list as $cell) {
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$style = rtrim($cell->getAttribute(self::$_style_attr));
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$style .= "; border-width: " . ($value > 0 ? 1 : 0) . "pt; border-style: inset;";
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$style = ltrim($style, ";");
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$cell->setAttribute(self::$_style_attr, $style);
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}
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$style = rtrim($node->getAttribute(self::$_style_attr), ";");
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$style .= "; border-width: $value" . "px; ";
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return ltrim($style, "; ");
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}
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static protected function _set_table_cellspacing($node, $value) {
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$style = rtrim($node->getAttribute(self::$_style_attr), ";");
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if ( $value == 0 )
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$style .= "; border-collapse: collapse;";
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else
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$style .= "; border-spacing: {$value}px; border-collapse: separate;";
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return ltrim($style, ";");
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}
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static protected function _set_table_rules($node, $value) {
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$new_style = "; border-collapse: collapse;";
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switch ($value) {
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case "none":
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$new_style .= "border-style: none;";
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break;
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case "groups":
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// FIXME: unsupported
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return;
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case "rows":
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$new_style .= "border-style: solid none solid none; border-width: 1px; ";
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break;
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case "cols":
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$new_style .= "border-style: none solid none solid; border-width: 1px; ";
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break;
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case "all":
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$new_style .= "border-style: solid; border-width: 1px; ";
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break;
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default:
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// Invalid value
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return null;
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}
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$cell_list = self::get_cell_list($node);
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foreach ($cell_list as $cell) {
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$style = $cell->getAttribute(self::$_style_attr);
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$style .= $new_style;
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$cell->setAttribute(self::$_style_attr, $style);
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}
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$style = rtrim($node->getAttribute(self::$_style_attr), ";");
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$style .= "; border-collapse: collapse; ";
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return ltrim($style, "; ");
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}
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static protected function _set_hr_size($node, $value) {
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$style = rtrim($node->getAttribute(self::$_style_attr), ";");
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$style .= "; border-width: ".max(0, $value-2)."; ";
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return ltrim($style, "; ");
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}
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static protected function _set_hr_align($node, $value) {
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$style = rtrim($node->getAttribute(self::$_style_attr),";");
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$width = $node->getAttribute("width");
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if ( $width == "" )
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$width = "100%";
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$remainder = 100 - (double)rtrim($width, "% ");
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switch ($value) {
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case "left":
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$style .= "; margin-right: $remainder %;";
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break;
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case "right":
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$style .= "; margin-left: $remainder %;";
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break;
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case "center":
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$style .= "; margin-left: auto; margin-right: auto;";
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break;
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default:
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return null;
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}
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return ltrim($style, "; ");
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}
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static protected function _set_table_row_align($node, $value) {
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$cell_list = self::get_cell_list($node);
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foreach ($cell_list as $cell) {
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self::append_style($cell, "; text-align: $value;");
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}
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return null;
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}
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static protected function _set_table_row_valign($node, $value) {
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$cell_list = self::get_cell_list($node);
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foreach ($cell_list as $cell) {
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self::append_style($cell, "; vertical-align: $value;");
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}
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return null;
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}
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static protected function _set_table_row_bgcolor($node, $value) {
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$cell_list = self::get_cell_list($node);
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$value = self::_get_valid_color($value);
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foreach ($cell_list as $cell) {
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self::append_style($cell, "; background-color: $value;");
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}
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return null;
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}
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static protected function _set_body_link($node, $value) {
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$a_list = $node->getElementsByTagName("a");
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$value = self::_get_valid_color($value);
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foreach ($a_list as $a) {
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self::append_style($a, "; color: $value;");
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}
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return null;
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}
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static protected function _set_basefont_size($node, $value) {
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// FIXME: ? we don't actually set the font size of anything here, just
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// the base size for later modification by <font> tags.
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self::$_last_basefont_size = $value;
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return null;
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}
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static protected function _set_font_size($node, $value) {
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$style = $node->getAttribute(self::$_style_attr);
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if ( $value[0] === "-" || $value[0] === "+" )
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$value = self::$_last_basefont_size + (int)$value;
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if ( isset(self::$_font_size_lookup[$value]) )
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$style .= "; font-size: " . self::$_font_size_lookup[$value] . ";";
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else
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$style .= "; font-size: $value;";
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return ltrim($style, "; ");
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}
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}
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