[1575] | 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: frame.cls.php,v $ |
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| 6 | * Created on: 2004-06-02 |
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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 | * @package dompdf |
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| 37 | * @version 0.5.1 |
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| 38 | */ |
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| 39 | |
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| 40 | /* $Id: frame.cls.php,v 1.11 2006/07/07 21:31:03 benjcarson Exp $ */ |
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| 41 | |
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| 42 | /** |
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| 43 | * The main Frame class |
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| 44 | * |
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| 45 | * This class represents a single HTML element. This class stores |
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| 46 | * positioning information as well as containing block location and |
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| 47 | * dimensions. Style information for the element is stored in a {@link |
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| 48 | * Style} object. Tree structure is maintained via the parent & children |
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| 49 | * links. |
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| 50 | * |
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| 51 | * @access protected |
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| 52 | * @package dompdf |
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| 53 | */ |
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| 54 | class Frame { |
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| 55 | |
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| 56 | /** |
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| 57 | * The DOMNode object this frame represents |
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| 58 | * |
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| 59 | * @var DOMNode |
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| 60 | */ |
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| 61 | protected $_node; |
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| 62 | |
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| 63 | /** |
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| 64 | * Unique identifier for this frame. Used to reference this frame |
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| 65 | * via the node. |
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| 66 | * |
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| 67 | * @var string |
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| 68 | */ |
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| 69 | protected $_id; |
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| 70 | |
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| 71 | /** |
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| 72 | * This frame's calculated style |
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| 73 | * |
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| 74 | * @var Style |
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| 75 | */ |
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| 76 | protected $_style; |
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| 77 | |
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| 78 | /** |
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| 79 | * This frame's original style. Needed for cases where frames are |
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| 80 | * split across pages. |
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| 81 | * |
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| 82 | * @var Style |
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| 83 | */ |
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| 84 | protected $_original_style; |
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| 85 | |
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| 86 | /** |
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| 87 | * This frame's parent in the document tree. |
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| 88 | * |
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| 89 | * @var Frame |
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| 90 | */ |
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| 91 | protected $_parent; |
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| 92 | |
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| 93 | /** |
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| 94 | * This frame's first child. All children are handled as a |
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| 95 | * doubly-linked list. |
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| 96 | * |
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| 97 | * @var Frame |
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| 98 | */ |
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| 99 | protected $_first_child; |
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| 100 | |
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| 101 | /** |
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| 102 | * This frame's last child. |
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| 103 | * |
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| 104 | * @var Frame |
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| 105 | */ |
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| 106 | protected $_last_child; |
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| 107 | |
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| 108 | /** |
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| 109 | * This frame's previous sibling in the document tree. |
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| 110 | * |
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| 111 | * @var Frame |
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| 112 | */ |
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| 113 | protected $_prev_sibling; |
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| 114 | |
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| 115 | /** |
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| 116 | * This frame's next sibling in the document tree. |
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| 117 | * |
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| 118 | * @var Frame |
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| 119 | */ |
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| 120 | protected $_next_sibling; |
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| 121 | |
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| 122 | /** |
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| 123 | * This frame's containing block (used in layout): array(x, y, w, h) |
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| 124 | * |
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| 125 | * @var array |
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| 126 | */ |
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| 127 | protected $_containing_block; |
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| 128 | |
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| 129 | /** |
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| 130 | * Position on the page of the top-left corner of the margin box of |
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| 131 | * this frame: array(x,y) |
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| 132 | * |
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| 133 | * @var array |
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| 134 | */ |
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| 135 | protected $_position; |
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| 136 | |
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| 137 | /** |
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| 138 | * This frame's decorator |
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| 139 | * |
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| 140 | * @var Frame_Decorator |
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| 141 | */ |
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| 142 | protected $_decorator; |
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| 143 | |
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| 144 | /** |
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| 145 | * Class constructor |
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| 146 | * |
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| 147 | * @param DOMNode $node the DOMNode this frame represents |
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| 148 | */ |
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| 149 | function __construct(DomNode $node) { |
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| 150 | $this->_node = $node; |
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| 151 | |
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| 152 | $this->_parent = null; |
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| 153 | $this->_first_child = null; |
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| 154 | $this->_last_child = null; |
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| 155 | $this->_prev_sibling = $this->_next_sibling = null; |
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| 156 | |
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| 157 | $this->_style = null; |
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| 158 | $this->_original_style = null; |
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| 159 | |
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| 160 | $this->_containing_block = array("x" => null, |
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| 161 | "y" => null, |
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| 162 | "w" => null, |
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| 163 | "h" => null); |
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| 164 | $this->_position = array("x" => null, |
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| 165 | "y" => null); |
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| 166 | |
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| 167 | $this->_decorator = null; |
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| 168 | |
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| 169 | $this->set_id( uniqid(rand()) ); |
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| 170 | } |
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| 171 | |
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| 172 | /** |
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| 173 | * "Destructor": forcibly free all references held by this frame |
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| 174 | * |
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| 175 | * @param bool $recursive if true, call dispose on all children |
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| 176 | */ |
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| 177 | function dispose($recursive = false) { |
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| 178 | |
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| 179 | if ( $recursive ) { |
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| 180 | while ( $child = $this->_first_child ) |
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| 181 | $child->dispose(true); |
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| 182 | } |
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| 183 | |
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| 184 | // Remove this frame from the tree |
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| 185 | if ( $this->_prev_sibling ) { |
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| 186 | $this->_prev_sibling->_next_sibling = $this->_next_sibling; |
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| 187 | } |
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| 188 | |
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| 189 | if ( $this->_next_sibling ) { |
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| 190 | $this->_next_sibling->_prev_sibling = $this->_prev_sibling; |
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| 191 | } |
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| 192 | |
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| 193 | if ( $this->_parent && $this->_parent->_first_child === $this ) { |
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| 194 | $this->_parent->_first_child = $this->_next_sibling; |
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| 195 | } |
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| 196 | |
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| 197 | if ( $this->_parent && $this->_parent->_last_child === $this ) { |
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| 198 | $this->_parent->_last_child = $this->_prev_sibling; |
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| 199 | } |
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| 200 | |
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| 201 | if ( $this->_parent ) { |
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| 202 | $this->_parent->get_node()->removeChild($this->_node); |
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| 203 | } |
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| 204 | |
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| 205 | $this->_style->dispose(); |
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| 206 | unset($this->_style); |
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| 207 | $this->_original_style->dispose(); |
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| 208 | unset($this->_original_style); |
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| 209 | |
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| 210 | } |
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| 211 | |
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| 212 | // Re-initialize the frame |
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| 213 | function reset() { |
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| 214 | $this->_position = array("x" => null, |
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| 215 | "y" => null); |
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| 216 | $this->_containing_block = array("x" => null, |
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| 217 | "y" => null, |
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| 218 | "w" => null, |
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| 219 | "h" => null); |
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| 220 | |
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| 221 | unset($this->_style); |
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| 222 | $this->_style = clone $this->_original_style; |
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| 223 | |
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| 224 | } |
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| 225 | |
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| 226 | //........................................................................ |
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| 227 | |
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| 228 | // Accessor methods |
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| 229 | function get_node() { return $this->_node; } |
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| 230 | function get_id() { return $this->_id; } |
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| 231 | function get_style() { return $this->_style; } |
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| 232 | function get_original_style() { return $this->_original_style; } |
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| 233 | function get_parent() { return $this->_parent; } |
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| 234 | function get_decorator() { return $this->_decorator; } |
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| 235 | function get_first_child() { return $this->_first_child; } |
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| 236 | function get_last_child() { return $this->_last_child; } |
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| 237 | function get_prev_sibling() { return $this->_prev_sibling; } |
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| 238 | function get_next_sibling() { return $this->_next_sibling; } |
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| 239 | |
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| 240 | function get_children() { return new FrameList($this); } |
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| 241 | |
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| 242 | // Layout property accessors |
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| 243 | function get_containing_block($i = null) { |
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| 244 | if ( isset($i) ) |
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| 245 | return $this->_containing_block[$i]; |
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| 246 | return $this->_containing_block; |
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| 247 | } |
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| 248 | |
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| 249 | function get_position($i = null) { |
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| 250 | if ( isset($i) ) |
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| 251 | return $this->_position[$i]; |
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| 252 | return array($this->_position["x"], |
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| 253 | $this->_position["y"], |
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| 254 | "x"=>$this->_position["x"], |
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| 255 | "y"=>$this->_position["y"]); |
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| 256 | } |
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| 257 | |
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| 258 | //........................................................................ |
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| 259 | |
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| 260 | // Return the height of the margin box of the frame, in pt. Meaningless |
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| 261 | // unless the height has been calculated properly. |
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| 262 | function get_margin_height() { |
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| 263 | return $this->_style->length_in_pt(array($this->_style->height, |
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| 264 | $this->_style->margin_top, |
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| 265 | $this->_style->margin_bottom, |
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| 266 | $this->_style->border_top_width, |
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| 267 | $this->_style->border_bottom_width, |
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| 268 | $this->_style->padding_top, |
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| 269 | $this->_style->padding_bottom), |
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| 270 | $this->_containing_block["w"]); |
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| 271 | } |
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| 272 | |
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| 273 | // Return the width of the margin box of the frame, in pt. Meaningless |
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| 274 | // unless the width has been calculted properly. |
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| 275 | function get_margin_width() { |
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| 276 | return $this->_style->length_in_pt(array($this->_style->width, |
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| 277 | $this->_style->margin_left, |
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| 278 | $this->_style->margin_right, |
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| 279 | $this->_style->border_left_width, |
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| 280 | $this->_style->border_right_width, |
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| 281 | $this->_style->padding_left, |
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| 282 | $this->_style->padding_right), |
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| 283 | $this->_containing_block["w"]); |
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| 284 | } |
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| 285 | |
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| 286 | // Return the padding box (x,y,w,h) of the frame |
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| 287 | function get_padding_box() { |
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| 288 | $x = $this->_position["x"] + |
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| 289 | $this->_style->length_in_pt(array($this->_style->margin_left, |
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| 290 | $this->_style->border_left_width), |
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| 291 | $this->_containing_block["w"]); |
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| 292 | $y = $this->_position["y"] + |
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| 293 | $this->_style->length_in_pt(array($this->_style->margin_top, |
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| 294 | $this->_style->border_top_width), |
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| 295 | $this->_containing_block["w"]); |
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| 296 | |
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| 297 | $w = $this->_style->length_in_pt(array($this->_style->padding_left, |
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| 298 | $this->_style->width, |
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| 299 | $this->_style->padding_right), |
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| 300 | $this->_containing_block["w"]); |
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| 301 | |
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| 302 | $h = $this->_style->length_in_pt(array($this->_style->padding_top, |
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| 303 | $this->_style->height, |
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| 304 | $this->_style->padding_bottom), |
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| 305 | $this->_containing_block["w"]); |
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| 306 | |
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| 307 | return array(0 => $x, "x" => $x, |
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| 308 | 1 => $y, "y" => $y, |
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| 309 | 2 => $w, "w" => $w, |
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| 310 | 3 => $h, "h" => $h); |
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| 311 | } |
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| 312 | |
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| 313 | // Return the border box of the frame |
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| 314 | function get_border_box() { |
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| 315 | $x = $this->_position["x"] + |
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| 316 | $this->_style->length_in_pt($this->_style->margin_left, |
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| 317 | $this->_containing_block["w"]); |
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| 318 | $y = $this->_position["y"] + |
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| 319 | $this->_style->length_in_pt($this->_style->margin_top, |
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| 320 | $this->_containing_block["w"]); |
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| 321 | |
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| 322 | $w = $this->_style->length_in_pt(array($this->_style->border_left_width, |
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| 323 | $this->_style->padding_left, |
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| 324 | $this->_style->width, |
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| 325 | $this->_style->padding_right, |
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| 326 | $this->_style->border_right_width), |
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| 327 | $this->_containing_block["w"]); |
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| 328 | |
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| 329 | $h = $this->_style->length_in_pt(array($this->_style->border_top_width, |
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| 330 | $this->_style->padding_top, |
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| 331 | $this->_style->height, |
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| 332 | $this->_style->padding_bottom, |
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| 333 | $this->_style->border_bottom_width), |
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| 334 | $this->_containing_block["w"]); |
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| 335 | |
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| 336 | return array(0 => $x, "x" => $x, |
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| 337 | 1 => $y, "y" => $y, |
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| 338 | 2 => $w, "w" => $w, |
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| 339 | 3 => $h, "h" => $h); |
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| 340 | |
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| 341 | } |
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| 342 | |
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| 343 | //........................................................................ |
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| 344 | |
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| 345 | // Set methods |
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| 346 | function set_id($id) { |
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| 347 | $this->_id = $id; |
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| 348 | |
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| 349 | // We can only set attributes of DOMElement objects (nodeType == 1). |
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| 350 | // Since these are the only objects that we can assign CSS rules to, |
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| 351 | // this shortcoming is okay. |
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| 352 | if ( $this->_node->nodeType == 1) |
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| 353 | $this->_node->setAttribute("frame_id", $id); |
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| 354 | } |
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| 355 | |
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| 356 | function set_style(Style $style) { |
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| 357 | if ( is_null($this->_style) ) |
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| 358 | $this->_original_style = clone $style; |
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| 359 | |
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| 360 | $this->_style = $style; |
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| 361 | } |
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| 362 | |
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| 363 | function set_decorator(Frame_Decorator $decorator) { |
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| 364 | $this->_decorator = $decorator; |
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| 365 | } |
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| 366 | |
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| 367 | function set_containing_block($x = null, $y = null, $w = null, $h = null) { |
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| 368 | if ( is_array($x) ) |
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| 369 | extract($x); |
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| 370 | |
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| 371 | if (is_numeric($x)) { |
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| 372 | $this->_containing_block[0] = $x; |
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| 373 | $this->_containing_block["x"] = $x; |
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| 374 | } |
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| 375 | |
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| 376 | if (is_numeric($y)) { |
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| 377 | $this->_containing_block[1] = $y; |
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| 378 | $this->_containing_block["y"] = $y; |
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| 379 | } |
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| 380 | |
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| 381 | if (is_numeric($w)) { |
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| 382 | $this->_containing_block[2] = $w; |
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| 383 | $this->_containing_block["w"] = $w; |
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| 384 | } |
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| 385 | |
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| 386 | if (is_numeric($h)) { |
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| 387 | $this->_containing_block[3] = $h; |
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| 388 | $this->_containing_block["h"] = $h; |
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| 389 | } |
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| 390 | |
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| 391 | } |
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| 392 | |
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| 393 | function set_position($x = null, $y = null) { |
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| 394 | if ( is_array($x) ) |
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| 395 | extract($x); |
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| 396 | |
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| 397 | if ( is_numeric($x) ) { |
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| 398 | $this->_position[0] = $x; |
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| 399 | $this->_position["x"] = $x; |
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| 400 | } |
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| 401 | |
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| 402 | if ( is_numeric($y) ) { |
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| 403 | $this->_position[1] = $y; |
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| 404 | $this->_position["y"] = $y; |
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| 405 | } |
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| 406 | } |
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| 407 | |
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| 408 | //........................................................................ |
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| 409 | |
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| 410 | function prepend_child(Frame $child, $update_node = true) { |
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| 411 | |
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| 412 | if ( $update_node ) |
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| 413 | $this->_node->insertBefore($child->_node, $this->_first_child ? $this->_first_child->_node : null); |
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| 414 | |
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| 415 | // Remove the child from its parent |
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| 416 | if ( $child->_parent ) |
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| 417 | $child->_parent->remove_child($child, false); |
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| 418 | |
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| 419 | $child->_parent = $this; |
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| 420 | $child->_prev_sibling = null; |
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| 421 | |
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| 422 | // Handle the first child |
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| 423 | if ( !$this->_first_child ) { |
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| 424 | $this->_first_child = $child; |
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| 425 | $this->_last_child = $child; |
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| 426 | $child->_next_sibling = null; |
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| 427 | |
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| 428 | } else { |
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| 429 | |
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| 430 | $this->_first_child->_prev_sibling = $child; |
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| 431 | $child->_next_sibling = $this->_first_child; |
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| 432 | $this->_first_child = $child; |
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| 433 | |
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| 434 | } |
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| 435 | } |
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| 436 | |
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| 437 | function append_child(Frame $child, $update_node = true) { |
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| 438 | |
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| 439 | if ( $update_node ) |
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| 440 | $this->_node->appendChild($child->_node); |
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| 441 | |
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| 442 | // Remove the child from its parent |
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| 443 | if ( $child->_parent ) |
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| 444 | $child->_parent->remove_child($child, false); |
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| 445 | |
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| 446 | $child->_parent = $this; |
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| 447 | $child->_next_sibling = null; |
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| 448 | |
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| 449 | // Handle the first child |
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| 450 | if ( !$this->_last_child ) { |
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| 451 | $this->_first_child = $child; |
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| 452 | $this->_last_child = $child; |
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| 453 | $child->_prev_sibling = null; |
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| 454 | |
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| 455 | } else { |
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| 456 | |
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| 457 | $this->_last_child->_next_sibling = $child; |
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| 458 | $child->_prev_sibling = $this->_last_child; |
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| 459 | $this->_last_child = $child; |
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| 460 | |
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| 461 | } |
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| 462 | } |
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| 463 | |
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| 464 | // Inserts a new child immediately before the specified frame |
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| 465 | function insert_child_before(Frame $new_child, Frame $ref, $update_node = true) { |
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| 466 | |
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| 467 | if ( $ref === $this->_first_child ) { |
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| 468 | $this->prepend_child($new_child, $update_node); |
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| 469 | return; |
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| 470 | } |
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| 471 | |
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| 472 | if ( is_null($ref) ) { |
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| 473 | $this->append_child($new_child, $update_node); |
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| 474 | return; |
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| 475 | } |
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| 476 | |
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| 477 | if ( $ref->_parent !== $this ) |
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| 478 | throw new DOMPDF_Exception("Reference child is not a child of this node."); |
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| 479 | |
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| 480 | // Update the node |
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| 481 | if ( $update_node ) |
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| 482 | $this->_node->insertBefore($new_child->_node, $ref->_node); |
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| 483 | |
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| 484 | // Remove the child from its parent |
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| 485 | if ( $new_child->_parent ) |
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| 486 | $new_child->_parent->remove_child($new_child, false); |
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| 487 | |
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| 488 | $new_child->_parent = $this; |
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| 489 | $new_child->_next_sibling = $ref; |
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| 490 | $new_child->_prev_sibling = $ref->_prev_sibling; |
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| 491 | |
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| 492 | if ( $ref->_prev_sibling ) |
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| 493 | $ref->_prev_sibling->_next_sibling = $new_child; |
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| 494 | |
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| 495 | $ref->_prev_sibling = $new_child; |
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| 496 | } |
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| 497 | |
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| 498 | // Inserts a new child immediately after the specified frame |
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| 499 | function insert_child_after(Frame $new_child, Frame $ref, $update_node = true) { |
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| 500 | |
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| 501 | if ( $ref === $this->_last_child ) { |
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| 502 | $this->append_child($new_child, $update_node); |
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| 503 | return; |
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| 504 | } |
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| 505 | |
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| 506 | if ( is_null($ref) ) { |
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| 507 | $this->prepend_child($new_child, $update_node); |
---|
| 508 | return; |
---|
| 509 | } |
---|
| 510 | |
---|
| 511 | if ( $ref->_parent !== $this ) |
---|
| 512 | throw new DOMPDF_Exception("Reference child is not a child of this node."); |
---|
| 513 | |
---|
| 514 | // Update the node |
---|
| 515 | if ( $update_node ) { |
---|
| 516 | if ( $ref->_next_sibling ) { |
---|
| 517 | $next_node = $ref->_next_sibling->_node; |
---|
| 518 | $this->_node->insertBefore($new_child->_node, $next_node); |
---|
| 519 | } else { |
---|
| 520 | $new_child->_node = $this->_node->appendChild($new_child); |
---|
| 521 | } |
---|
| 522 | } |
---|
| 523 | |
---|
| 524 | // Remove the child from its parent |
---|
| 525 | if ( $new_child->_parent) |
---|
| 526 | $new_child->_parent->remove_child($new_child, false); |
---|
| 527 | |
---|
| 528 | $new_child->_parent = $this; |
---|
| 529 | $new_child->_prev_sibling = $ref; |
---|
| 530 | $new_child->_next_sibling = $ref->_next_sibling; |
---|
| 531 | |
---|
| 532 | if ( $ref->_next_sibling ) |
---|
| 533 | $ref->_next_sibling->_prev_sibling = $new_child; |
---|
| 534 | |
---|
| 535 | $ref->_next_sibling = $new_child; |
---|
| 536 | } |
---|
| 537 | |
---|
| 538 | |
---|
| 539 | function remove_child(Frame $child, $update_node = true) { |
---|
| 540 | |
---|
| 541 | if ( $child->_parent !== $this ) |
---|
| 542 | throw new DOMPDF_Exception("Child not found in this frame"); |
---|
| 543 | |
---|
| 544 | if ( $update_node ) |
---|
| 545 | $this->_node->removeChild($child->_node); |
---|
| 546 | |
---|
| 547 | if ( $child === $this->_first_child ) |
---|
| 548 | $this->_first_child = $child->_next_sibling; |
---|
| 549 | |
---|
| 550 | if ( $child === $this->_last_child ) |
---|
| 551 | $this->_last_child = $child->_prev_sibling; |
---|
| 552 | |
---|
| 553 | if ( $child->_prev_sibling ) |
---|
| 554 | $child->_prev_sibling->_next_sibling = $child->_next_sibling; |
---|
| 555 | |
---|
| 556 | if ( $child->_next_sibling ) |
---|
| 557 | $child->_next_sibling->_prev_sibling = $child->_prev_sibling; |
---|
| 558 | |
---|
| 559 | $child->_next_sibling = null; |
---|
| 560 | $child->_prev_sibling = null; |
---|
| 561 | $child->_parent = null; |
---|
| 562 | return $child; |
---|
| 563 | |
---|
| 564 | } |
---|
| 565 | |
---|
| 566 | //........................................................................ |
---|
| 567 | |
---|
| 568 | // Debugging function: |
---|
| 569 | function __toString() { |
---|
| 570 | |
---|
| 571 | // Skip empty text frames |
---|
| 572 | if ( $this->_node->nodeName == "#text" && |
---|
| 573 | preg_replace("/\s/", "", $this->_node->data) === "" ) |
---|
| 574 | return ""; |
---|
| 575 | |
---|
| 576 | |
---|
| 577 | $str = "<b>" . $this->_node->nodeName . ":</b><br/>"; |
---|
| 578 | $str .= (string)$this->_node . "<br/>"; |
---|
| 579 | $str .= "Id: " .$this->get_id() . "<br/>"; |
---|
| 580 | $str .= "Class: " .get_class($this) . "<br/>"; |
---|
| 581 | |
---|
| 582 | if ( $this->_node->nodeName == "#text" ) { |
---|
| 583 | $tmp = htmlspecialchars($this->_node->nodeValue); |
---|
| 584 | $str .= "<pre>'" . mb_substr($tmp,0,70) . |
---|
| 585 | (mb_strlen($tmp) > 70 ? "..." : "") . "'</pre>"; |
---|
| 586 | } |
---|
| 587 | if ( $this->_parent ) |
---|
| 588 | $str .= "\nParent:" . $this->_parent->_node->nodeName . |
---|
| 589 | " (" . (string)$this->_parent->_node . ") " . |
---|
| 590 | "<br/>"; |
---|
| 591 | |
---|
| 592 | if ( $this->_prev_sibling ) |
---|
| 593 | $str .= "Prev: " . $this->_prev_sibling->_node->nodeName . |
---|
| 594 | " (" . (string)$this->_prev_sibling->_node . ") " . |
---|
| 595 | "<br/>"; |
---|
| 596 | |
---|
| 597 | if ( $this->_next_sibling ) |
---|
| 598 | $str .= "Next: " . $this->_next_sibling->_node->nodeName . |
---|
| 599 | " (" . (string)$this->_next_sibling->_node . ") " . |
---|
| 600 | "<br/>"; |
---|
| 601 | |
---|
| 602 | $d = $this->get_decorator(); |
---|
| 603 | while ($d && $d != $d->get_decorator()) { |
---|
| 604 | $str .= "Decorator: " . get_class($d) . "<br/>"; |
---|
| 605 | $d = $d->get_decorator(); |
---|
| 606 | } |
---|
| 607 | |
---|
| 608 | $str .= "Position: " . pre_r($this->_position, true); |
---|
| 609 | $str .= "\nContaining block: " . pre_r($this->_containing_block, true); |
---|
| 610 | $str .= "\nMargin width: " . pre_r($this->get_margin_width(), true); |
---|
| 611 | $str .= "\nMargin height: " . pre_r($this->get_margin_height(), true); |
---|
| 612 | |
---|
| 613 | $str .= "\nStyle: <pre>". $this->_style->__toString() . "</pre>"; |
---|
| 614 | |
---|
| 615 | if ( $this->_decorator instanceof Block_Frame_Decorator ) { |
---|
| 616 | $str .= "Lines:<pre>"; |
---|
| 617 | foreach ($this->_decorator->get_lines() as $line) { |
---|
| 618 | foreach ($line["frames"] as $frame) { |
---|
| 619 | if ($frame instanceof Text_Frame_Decorator) { |
---|
| 620 | $str .= "\ntext: "; |
---|
| 621 | $str .= htmlspecialchars($frame->get_text()); |
---|
| 622 | } else { |
---|
| 623 | $str .= "\nBlock: " . $frame->get_node()->nodeName . " (" . (string)$frame->get_node() . ")"; |
---|
| 624 | } |
---|
| 625 | } |
---|
| 626 | |
---|
| 627 | $str .= |
---|
| 628 | //"\ncount => " . $line["count"] . "\n". |
---|
| 629 | "\ny => " . $line["y"] . "\n" . |
---|
| 630 | "w => " . $line["w"] . "\n" . |
---|
| 631 | "h => " . $line["h"] . "\n"; |
---|
| 632 | } |
---|
| 633 | $str .= "</pre>"; |
---|
| 634 | } |
---|
| 635 | $str .= "\n"; |
---|
| 636 | if ( php_sapi_name() == "cli" ) |
---|
| 637 | $str = strip_tags(str_replace(array("<br/>","<b>","</b>"), |
---|
| 638 | array("\n","",""), |
---|
| 639 | $str)); |
---|
| 640 | |
---|
| 641 | return $str; |
---|
| 642 | } |
---|
| 643 | |
---|
| 644 | } |
---|
| 645 | |
---|
| 646 | //------------------------------------------------------------------------ |
---|
| 647 | |
---|
| 648 | /** |
---|
| 649 | * Linked-list IteratorAggregate |
---|
| 650 | * |
---|
| 651 | * @access private |
---|
| 652 | * @package dompdf |
---|
| 653 | */ |
---|
| 654 | class FrameList implements IteratorAggregate { |
---|
| 655 | protected $_frame; |
---|
| 656 | |
---|
| 657 | function __construct($frame) { $this->_frame = $frame; } |
---|
| 658 | function getIterator() { return new FrameListIterator($this->_frame); } |
---|
| 659 | } |
---|
| 660 | |
---|
| 661 | /** |
---|
| 662 | * Linked-list Iterator |
---|
| 663 | * |
---|
| 664 | * Returns children in order and allows for list to change during iteration, |
---|
| 665 | * provided the changes occur to or after the current element |
---|
| 666 | * |
---|
| 667 | * @access private |
---|
| 668 | * @package dompdf |
---|
| 669 | */ |
---|
| 670 | class FrameListIterator implements Iterator { |
---|
| 671 | |
---|
| 672 | protected $_parent; |
---|
| 673 | protected $_cur; |
---|
| 674 | protected $_num; |
---|
| 675 | |
---|
| 676 | function __construct(Frame $frame) { |
---|
| 677 | $this->_parent = $frame; |
---|
| 678 | $this->_cur = $frame->get_first_child(); |
---|
| 679 | $this->_num = 0; |
---|
| 680 | } |
---|
| 681 | |
---|
| 682 | function rewind() { |
---|
| 683 | $this->_cur = $this->_parent->get_first_child(); |
---|
| 684 | $this->_num = 0; |
---|
| 685 | } |
---|
| 686 | |
---|
| 687 | function valid() { |
---|
| 688 | return isset($this->_cur);// && ($this->_cur->get_prev_sibling() === $this->_prev); |
---|
| 689 | } |
---|
| 690 | function key() { return $this->_num; } |
---|
| 691 | function current() { return $this->_cur; } |
---|
| 692 | |
---|
| 693 | function next() { |
---|
| 694 | |
---|
| 695 | $ret = $this->_cur; |
---|
| 696 | if ( !$ret ) |
---|
| 697 | return null; |
---|
| 698 | |
---|
| 699 | $this->_cur = $this->_cur->get_next_sibling(); |
---|
| 700 | $this->_num++; |
---|
| 701 | return $ret; |
---|
| 702 | } |
---|
| 703 | } |
---|
| 704 | |
---|
| 705 | //------------------------------------------------------------------------ |
---|
| 706 | |
---|
| 707 | /** |
---|
| 708 | * Pre-order IteratorAggregate |
---|
| 709 | * |
---|
| 710 | * @access private |
---|
| 711 | * @package dompdf |
---|
| 712 | */ |
---|
| 713 | class FrameTreeList implements IteratorAggregate { |
---|
| 714 | |
---|
| 715 | protected $_root; |
---|
| 716 | function __construct(Frame $root) { $this->_root = $root; } |
---|
| 717 | function getIterator() { return new FrameTreeIterator($this->_root); } |
---|
| 718 | |
---|
| 719 | } |
---|
| 720 | |
---|
| 721 | /** |
---|
| 722 | * Pre-order Iterator |
---|
| 723 | * |
---|
| 724 | * Returns frames in preorder traversal order (parent then children) |
---|
| 725 | * |
---|
| 726 | * @access private |
---|
| 727 | * @package dompdf |
---|
| 728 | */ |
---|
| 729 | class FrameTreeIterator implements Iterator { |
---|
| 730 | |
---|
| 731 | protected $_root; |
---|
| 732 | protected $_stack = array(); |
---|
| 733 | protected $_num; |
---|
| 734 | |
---|
| 735 | function __construct(Frame $root) { |
---|
| 736 | $this->_stack[] = $this->_root = $root; |
---|
| 737 | $this->_num = 0; |
---|
| 738 | } |
---|
| 739 | |
---|
| 740 | function rewind() { |
---|
| 741 | $this->_stack = array($this->_root); |
---|
| 742 | $this->_num = 0; |
---|
| 743 | } |
---|
| 744 | |
---|
| 745 | function valid() { return count($this->_stack) > 0; } |
---|
| 746 | function key() { return $this->_num; } |
---|
| 747 | function current() { return end($this->_stack); } |
---|
| 748 | |
---|
| 749 | function next() { |
---|
| 750 | $b = end($this->_stack); |
---|
| 751 | |
---|
| 752 | // Pop last element |
---|
| 753 | unset($this->_stack[ key($this->_stack) ]); |
---|
| 754 | $this->_num++; |
---|
| 755 | |
---|
| 756 | // Push all children onto the stack in reverse order |
---|
| 757 | if ( $c = $b->get_last_child() ) { |
---|
| 758 | $this->_stack[] = $c; |
---|
| 759 | while ( $c = $c->get_prev_sibling() ) |
---|
| 760 | $this->_stack[] = $c; |
---|
| 761 | } |
---|
| 762 | return $b; |
---|
| 763 | } |
---|
| 764 | } |
---|
| 765 | |
---|
| 766 | ?> |
---|