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<?php
/**
* DOMPDF - PHP5 HTML to PDF renderer
*
* File: $RCSfile: attribute_translator.cls.php,v $
* Created on: 2004-09-13
*
* Copyright (c) 2004 - Benj Carson <benjcarson@digitaljunkies.ca>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library in the file LICENSE.LGPL; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA
*
* Alternatively, you may distribute this software under the terms of the
* PHP License, version 3.0 or later. A copy of this license should have
* been distributed with this file in the file LICENSE.PHP . If this is not
* the case, you can obtain a copy at http://www.php.net/license/3_0.txt.
*
* The latest version of DOMPDF might be available at:
* http://www.digitaljunkies.ca/dompdf
*
* @link http://www.digitaljunkies.ca/dompdf
* @copyright 2004 Benj Carson
* @author Benj Carson <benjcarson@digitaljunkies.ca>
* @package dompdf
* @version 0.5.1
*/
/* $Id: attribute_translator.cls.php,v 1.8 2006/07/07 21:31:02 benjcarson Exp $ */
/**
* Translates HTML 4.0 attributes into CSS rules
*
* @access private
* @package dompdf
*/
class Attribute_Translator {
// Munged data originally from
// http://www.w3.org/TR/REC-html40/index/attributes.html
//
// thank you var_export() :D
static private $__ATTRIBUTE_LOOKUP =
array (//'caption' => array ( 'align' => '', ),
'img_inner' => // img tags actually end up wrapping img_inner elements
array ('align' => array('bottom' => 'vertical-align: baseline;',
'middle' => 'vertical-align: middle;',
'top' => 'vertical-align: top;',
'left' => 'float: left;',
'right' => 'float: right;'),
'border' => 'border-width: %0.2f px;',
'height' => 'height: %s;',
'hspace' => 'padding-left: %0.2f px; padding-right: %0.2f px;',
'vspace' => 'padding-top: %0.2f px; padding-bottom: %0.2f px;',
'width' => 'width: %s;',
),
'table' =>
array ("align" => array(//'left' => '',
'center' => 'margin-left: auto; margin-right: auto;',
//'right' => ''
),
'bgcolor' => 'background-color: %s;',
'border' => '!set_table_border',
'cellpadding' => '!set_table_cellpadding',
'cellspacing' => 'border-spacing: %0.2f; border-collapse: separate;',
'frame' => array('void' => 'border-style: none;',
'above' => 'border-top-style: solid;',
'below' => 'border-bottom-style: solid;',
'hsides' => 'border-left-style: solid; border-right-style: solid;',
'vsides' => 'border-top-style: solid; border-bottom-style: solid;',
'lhs' => 'border-left-style: solid;',
'rhs' => 'border-right-style: solid;',
'box' => 'border-style: solid;',
'border' => 'border-style: solid;'),
'rules' => '!set_table_rules',
'width' => 'width: %s;',
),
'hr' =>
array (
'align' => '!set_hr_align', // Need to grab width to set 'left' & 'right' correctly
'noshade' => 'border-style: solid;',
'size' => 'border-width: %0.2f px;',
'width' => 'width: %s;',
),
'div' =>
array (
'align' => 'text-align: %s;',
),
'h1' =>
array (
'align' => 'text-align: %s;',
),
'h2' =>
array (
'align' => 'text-align: %s;',
),
'h3' =>
array (
'align' => 'text-align: %s;',
),
'h4' =>
array (
'align' => 'text-align: %s;',
),
'h5' =>
array (
'align' => 'text-align: %s;',
),
'h6' =>
array (
'align' => 'text-align: %s;',
),
'p' =>
array (
'align' => 'text-align: %s;',
),
// 'col' =>
// array (
// 'align' => '',
// 'valign' => '',
// ),
// 'colgroup' =>
// array (
// 'align' => '',
// 'valign' => '',
// ),
'tbody' =>
array (
'align' => '!set_table_row_align',
'valign' => '!set_table_row_valign',
),
'td' =>
array (
'align' => 'text-align: %s;',
'bgcolor' => 'background-color: %s;',
'height' => 'height: %s;',
'nowrap' => 'white-space: nowrap;',
'valign' => 'vertical-align: %s;',
'width' => 'width: %s;',
),
'tfoot' =>
array (
'align' => '!set_table_row_align',
'valign' => '!set_table_row_valign',
),
'th' =>
array (
'align' => 'text-align: %s;',
'bgcolor' => 'background-color: %s;',
'height' => 'height: %s;',
'nowrap' => 'white-space: nowrap;',
'valign' => 'vertical-align: %s;',
'width' => 'width: %s;',
),
'thead' =>
array (
'align' => '!set_table_row_align',
'valign' => '!set_table_row_valign',
),
'tr' =>
array (
'align' => '!set_table_row_align',
'bgcolor' => '!set_table_row_bgcolor',
'valign' => '!set_table_row_valign',
),
'body' =>
array (
'background' => 'background-image: url(%s);',
'bgcolor' => 'background-color: %s;',
'link' => '!set_body_link',
'text' => 'color: %s;',
),
'br' =>
array (
'clear' => 'clear: %s;',
),
'basefont' =>
array (
'color' => 'color: %s;',
'face' => 'font-family: %s;',
'size' => '!set_basefont_size',
),
'font' =>
array (
'color' => 'color: %s;',
'face' => 'font-family: %s;',
'size' => '!set_font_size',
),
'dir' =>
array (
'compact' => 'margin: 0.5em 0;',
),
'dl' =>
array (
'compact' => 'margin: 0.5em 0;',
),
'menu' =>
array (
'compact' => 'margin: 0.5em 0;',
),
'ol' =>
array (
'compact' => 'margin: 0.5em 0;',
'start' => 'counter-reset: -dompdf-default-counter %d;',
'type' => 'list-style-type: %s;',
),
'ul' =>
array (
'compact' => 'margin: 0.5em 0;',
'type' => 'list-style-type: %s;',
),
'li' =>
array (
'type' => 'list-style-type: %s;',
'value' => 'counter-reset: -dompdf-default-counter %d;',
),
'pre' =>
array (
'width' => 'width: %s;',
),
);
static protected $_last_basefont_size = 3;
static protected $_font_size_lookup = array(1=>"xx-small",
2=>"x-small",
3=>"medium",
4=>"large",
5=>"x-large",
6=>"xx-large",
7=>"300%");
static function translate_attributes($frame) {
$node = $frame->get_node();
$tag = $node->tagName;
if ( !isset(self::$__ATTRIBUTE_LOOKUP[$tag]) )
return;
$valid_attrs = self::$__ATTRIBUTE_LOOKUP[$tag];
$attrs = $node->attributes;
$style = rtrim($node->getAttribute("style"), "; ");
if ( $style != "" )
$style .= ";";
foreach ($attrs as $attr => $attr_node ) {
if ( !isset($valid_attrs[$attr]) )
continue;
$value = $attr_node->value;
$target = $valid_attrs[$attr];
// Look up $value in $target, if $target is an array:
if ( is_array($target) ) {
if ( isset($target[$value]) )
$style .= " " . self::_resolve_target($node, $target[$value], $value);
} else {
// otherwise use target directly
$style .= " " . self::_resolve_target($node, $target, $value);
}
}
if ( !is_null($style) ) {
$style = ltrim($style);
$node->setAttribute("style", $style);
}
}
static protected function _resolve_target($node, $target, $value) {
if ( $target{0} == "!" ) {
// Function call
$func = "_" . mb_substr($target, 1);
return self::$func($node, $value);
}
return $value ? sprintf($target, $value) : "";
}
//.....................................................................
static protected function _set_table_cellpadding($node, $value) {
$td_list = $node->getElementsByTagName("td");
foreach ($td_list as $td) {
$style = rtrim($td->getAttribute("style"), ";");
$style .= "; padding: $value" . "px;";
$style = ltrim($style, ";");
$td->setAttribute("style", $style);
}
return null;
}
static protected function _set_table_border($node, $value) {
$td_list = $node->getElementsByTagName("td");
foreach ($td_list as $td) {
$style = rtrim($td->getAttribute("style"), ";");
$style .= "; border-width: $value" . "px; border-style: ridge;";
$style = ltrim($style, ";");
$td->setAttribute("style", $style);
}
return null;
}
static protected function _set_table_cellspacing($node, $value) {
$style = rtrim($td->getAttribute($style), ";");
if ( $value == 0 )
$style .= "; border-collapse: collapse;";
else
$style = "; border-collapse: separate;";
return ltrim($style, ";");
}
static protected function _set_table_rules($node, $value) {
$new_style = "; border-collapse: collapse;";
switch ($value) {
case "none":
$new_style .= "border-style: none;";
break;
case "groups":
// FIXME: unsupported
return;
case "rows":
$new_style .= "border-style: solid none solid none; border-width: 1px; ";
break;
case "cols":
$new_style .= "border-style: none solid none solid; border-width: 1px; ";
break;
case "all":
$new_style .= "border-style: solid; border-width: 1px; ";
break;
default:
// Invalid value
return null;
}
$td_list = $node->getElementsByTagName("td");
foreach ($td_list as $td) {
$style = $td->getAttribute("style");
$style .= $new_style;
$td->setAttribute("style", $style);
}
return null;
}
static protected function _set_hr_align($node, $value) {
$style = rtrim($node->getAttribute("style"),";");
$width = $node->getAttribute("width");
if ( $width == "" )
$width = "100%";
$remainder = 100 - (double)rtrim($width, "% ");
switch ($value) {
case "left":
$style .= "; margin-right: $remainder %;";
break;
case "right":
$style .= "; margin-left: $remainder %;";
break;
case "center":
$style .= "; margin-left: auto; margin-right: auto;";
break;
default:
return null;
}
return ltrim($style, "; ");
}
static protected function _set_table_row_align($node, $value) {
$td_list = $node->getElementsByTagName("td");
foreach ($td_list as $td) {
$style = rtrim($td->getAttribute("style"), ";");
$style .= "; text-align: $value;";
$style = ltrim($style, "; ");
$td->setAttribute("style", $style);
}
return null;
}
static protected function _set_table_row_valign($node, $value) {
$td_list = $node->getElementsByTagName("td");
foreach ($td_list as $td) {
$style = rtrim($td->getAttribute("style"), ";");
$style .= "; vertical-align: $value;";
$style = ltrim($style, "; ");
$td->setAttribute("style", $style);
}
return null;
}
static protected function _set_table_row_bgcolor($node, $value) {
$td_list = $node->getElementsByTagName("td");
foreach ($td_list as $td) {
$style = rtrim($td->getAttribute("style"), ";");
$style .= "; background-color: $value;";
$style = ltrim($style, "; ");
$td->setAttribute("style", $style);
}
return null;
}
static protected function _set_body_link($node, $value) {
$a_list = $node->getElementsByTagName("a");
foreach ($a_list as $a) {
$style = rtrim($a->getAttribute("style"), ";");
$style .= "; color: $value;";
$style = ltrim($style, "; ");
$a->setAttribute("style", $style);
}
return null;
}
static protected function _set_basefont_size($node, $value) {
// FIXME: ? we don't actually set the font size of anything here, just
// the base size for later modification by <font> tags.
self::$_last_basefont_size = $value;
return null;
}
static protected function _set_font_size($node, $value) {
$style = $node->getAttribute("style");
if ( $value{0} == "-" || $value{0} == "+" )
$value = self::$_last_basefont_size + (int)$value;
if ( isset(self::$_font_size_lookup[$value]) )
$style .= "; font-size: " . self::$_font_size_lookup[$value] . ";";
else
$style .= "; font-size: $value;";
return ltrim($style, "; ");
}
}
?>