1 | <?php |
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2 | /** |
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3 | * DOMPDF - PHP5 HTML to PDF renderer |
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4 | * |
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5 | * File: $RCSfile: image_frame_decorator.cls.php,v $ |
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6 | * Created on: 2004-08-08 |
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7 | * |
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8 | * Copyright (c) 2004 - Benj Carson <benjcarson@digitaljunkies.ca> |
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9 | * |
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10 | * This library is free software; you can redistribute it and/or |
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11 | * modify it under the terms of the GNU Lesser General Public |
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12 | * License as published by the Free Software Foundation; either |
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13 | * version 2.1 of the License, or (at your option) any later version. |
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14 | * |
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15 | * This library is distributed in the hope that it will be useful, |
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16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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18 | * Lesser General Public License for more details. |
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19 | * |
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20 | * You should have received a copy of the GNU Lesser General Public License |
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21 | * along with this library in the file LICENSE.LGPL; if not, write to the |
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22 | * Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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23 | * 02111-1307 USA |
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24 | * |
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25 | * Alternatively, you may distribute this software under the terms of the |
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26 | * PHP License, version 3.0 or later. A copy of this license should have |
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27 | * been distributed with this file in the file LICENSE.PHP . If this is not |
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28 | * the case, you can obtain a copy at http://www.php.net/license/3_0.txt. |
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29 | * |
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30 | * The latest version of DOMPDF might be available at: |
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31 | * http://www.digitaljunkies.ca/dompdf |
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32 | * |
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33 | * @link http://www.digitaljunkies.ca/dompdf |
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34 | * @copyright 2004 Benj Carson |
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35 | * @author Benj Carson <benjcarson@digitaljunkies.ca> |
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36 | * @contributor Helmut Tischer <htischer@weihenstephan.org> |
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37 | * @package dompdf |
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38 | * @version 0.5.1 |
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39 | * |
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40 | * Changes |
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41 | * @contributor Helmut Tischer <htischer@weihenstephan.org> |
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42 | * @version 0.5.1.htischer.20090507 |
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43 | * - add optional debug output |
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44 | */ |
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45 | |
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46 | /* $Id: image_frame_decorator.cls.php 186 2009-10-19 22:42:06Z eclecticgeek@gmail.com $ */ |
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47 | |
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48 | /** |
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49 | * Decorates frames for image layout and rendering |
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50 | * |
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51 | * @access private |
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52 | * @package dompdf |
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53 | */ |
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54 | class Image_Frame_Decorator extends Frame_Decorator { |
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55 | |
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56 | /** |
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57 | * Array of downloaded images. Cached so that identical images are |
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58 | * not needlessly downloaded. |
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59 | * |
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60 | * @var array |
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61 | */ |
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62 | static protected $_cache = array(); |
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63 | |
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64 | /** |
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65 | * The path to the image file (note that remote images are |
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66 | * downloaded locally to DOMPDF_TEMP_DIR). |
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67 | * |
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68 | * @var string |
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69 | */ |
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70 | protected $_image_url; |
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71 | |
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72 | /** |
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73 | * The image's file extension (i.e. png, jpeg, gif) |
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74 | * |
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75 | * @var string |
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76 | */ |
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77 | protected $_image_ext; |
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78 | |
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79 | /** |
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80 | * Class constructor |
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81 | * |
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82 | * @param Frame $frame the frame to decorate |
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83 | * @param DOMPDF $dompdf the document's dompdf object (required to resolve relative & remote urls) |
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84 | */ |
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85 | function __construct(Frame $frame, DOMPDF $dompdf) { |
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86 | global $_dompdf_warnings; |
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87 | |
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88 | parent::__construct($frame, $dompdf); |
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89 | $url = $frame->get_node()->getAttribute("src"); |
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90 | |
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91 | //debugpng |
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92 | if (DEBUGPNG) print '[__construct '.$url.']'; |
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93 | |
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94 | list($this->_image_url, $this->_image_ext) = Image_Cache::resolve_url($url, |
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95 | $dompdf->get_protocol(), |
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96 | $dompdf->get_host(), |
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97 | $dompdf->get_base_path()); |
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98 | |
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99 | } |
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100 | |
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101 | /** |
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102 | * Return the image's url |
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103 | * |
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104 | * @return string The url of this image |
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105 | */ |
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106 | function get_image_url() { |
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107 | return $this->_image_url; |
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108 | } |
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109 | |
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110 | /** |
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111 | * Return the image's file extension |
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112 | * |
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113 | * @return string The image's file extension |
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114 | */ |
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115 | function get_image_ext() { |
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116 | return $this->_image_ext; |
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117 | } |
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118 | |
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119 | /** |
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120 | * Unlink all cached images (i.e. temporary images either downloaded |
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121 | * or converted) |
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122 | */ |
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123 | static function clear_image_cache() { |
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124 | if ( count(self::$_cache) ) { |
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125 | foreach (self::$_cache as $file) |
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126 | //debugpng |
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127 | if (DEBUGPNG) print '[clear_image_cache unlink '.$file.']'; |
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128 | if (!DEBUGKEEPTEMP) |
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129 | unlink($file); |
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130 | } |
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131 | } |
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132 | } |
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133 | ?> |
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