[3019] | 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: text_frame_decorator.cls.php,v $ |
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| 6 | * Created on: 2004-06-04 |
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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: text_frame_decorator.cls.php 186 2009-10-19 22:42:06Z eclecticgeek@gmail.com $ */ |
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| 41 | |
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| 42 | /** |
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| 43 | * Decorates Frame objects for text layout |
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| 44 | * |
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| 45 | * @access private |
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| 46 | * @package dompdf |
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| 47 | */ |
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| 48 | class Text_Frame_Decorator extends Frame_Decorator { |
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| 49 | |
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| 50 | // protected members |
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| 51 | protected $_text_spacing; |
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| 52 | |
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| 53 | function __construct(Frame $frame, DOMPDF $dompdf) { |
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| 54 | if ( $frame->get_node()->nodeName != "#text" ) |
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| 55 | throw new DOMPDF_Exception("Text_Decorator can only be applied to #text nodes."); |
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| 56 | |
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| 57 | parent::__construct($frame, $dompdf); |
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| 58 | $this->_text_spacing = null; |
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| 59 | } |
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| 60 | |
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| 61 | //........................................................................ |
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| 62 | |
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| 63 | function reset() { |
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| 64 | parent::reset(); |
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| 65 | $this->_text_spacing = null; |
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| 66 | } |
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| 67 | |
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| 68 | //........................................................................ |
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| 69 | |
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| 70 | // Accessor methods |
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| 71 | function get_text_spacing() { return $this->_text_spacing; } |
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| 72 | |
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| 73 | function get_text() { |
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| 74 | // FIXME: this should be in a child class (and is incorrect) |
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| 75 | if ( $this->_frame->get_style()->content !== "normal" ) { |
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| 76 | $this->_frame->get_node()->data = $this->_frame->get_style()->content; |
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| 77 | $this->_frame->get_style()->content = "normal"; |
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| 78 | } |
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| 79 | |
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| 80 | // pre_r("---"); |
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| 81 | // $style = $this->_frame->get_style(); |
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| 82 | // var_dump($text = $this->_frame->get_node()->data); |
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| 83 | // var_dump($asc = utf8_decode($text)); |
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| 84 | // for ($i = 0; $i < strlen($asc); $i++) |
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| 85 | // pre_r("$i: " . $asc{$i} . " - " . ord($asc{$i})); |
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| 86 | // pre_r("width: " . Font_Metrics::get_text_width($text, $style->font_family, $style->font_size)); |
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| 87 | |
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| 88 | return $this->_frame->get_node()->data; |
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| 89 | } |
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| 90 | |
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| 91 | //........................................................................ |
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| 92 | |
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| 93 | // Vertical margins & padding do not apply to text frames |
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| 94 | |
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| 95 | // http://www.w3.org/TR/CSS21/visudet.html#inline-non-replaced: |
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| 96 | // |
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| 97 | // The vertical padding, border and margin of an inline, non-replaced box |
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| 98 | // start at the top and bottom of the content area, not the |
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| 99 | // 'line-height'. But only the 'line-height' is used to calculate the |
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| 100 | // height of the line box. |
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| 101 | function get_margin_height() { |
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| 102 | // This function is called in add_frame_to_line() and is used to |
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| 103 | // determine the line height, so we actually want to return the |
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| 104 | // 'line-height' property, not the actual margin box |
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| 105 | $style = $this->get_style(); |
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| 106 | $font = $style->font_family; |
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| 107 | $size = $style->font_size; |
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| 108 | |
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| 109 | /* |
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| 110 | pre_r('-----'); |
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| 111 | pre_r($style->line_height); |
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| 112 | pre_r($style->font_size); |
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| 113 | pre_r(Font_Metrics::get_font_height($font, $size)); |
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| 114 | pre_r(($style->line_height / $size) * Font_Metrics::get_font_height($font, $size)); |
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| 115 | */ |
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| 116 | |
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| 117 | return ($style->line_height / $size) * Font_Metrics::get_font_height($font, $size); |
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| 118 | |
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| 119 | } |
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| 120 | |
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| 121 | function get_padding_box() { |
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| 122 | $pb = $this->_frame->get_padding_box(); |
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| 123 | $pb[3] = $pb["h"] = $this->_frame->get_style()->height; |
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| 124 | return $pb; |
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| 125 | } |
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| 126 | //........................................................................ |
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| 127 | |
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| 128 | // Set method |
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| 129 | function set_text_spacing($spacing) { |
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| 130 | $this->_text_spacing = $spacing; |
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| 131 | |
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| 132 | $style = $this->_frame->get_style(); |
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| 133 | // Re-adjust our width to account for the change in spacing |
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| 134 | $style->width = Font_Metrics::get_text_width($this->get_text(), $style->font_family, $style->font_size, $spacing); |
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| 135 | } |
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| 136 | |
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| 137 | //........................................................................ |
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| 138 | |
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| 139 | // Recalculate the text width |
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| 140 | function recalculate_width() { |
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| 141 | $style = $this->get_style(); |
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| 142 | $text = $this->get_text(); |
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| 143 | $size = $style->font_size; |
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| 144 | $font = $style->font_family; |
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| 145 | $word_spacing = $style->length_in_pt($style->word_spacing); |
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| 146 | |
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| 147 | $style->width = Font_Metrics::get_text_width($text, $font, $size, $word_spacing); |
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| 148 | } |
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| 149 | |
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| 150 | //........................................................................ |
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| 151 | |
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| 152 | // Text manipulation methods |
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| 153 | |
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| 154 | // split the text in this frame at the offset specified. The remaining |
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| 155 | // text is added a sibling frame following this one and is returned. |
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| 156 | function split_text($offset) { |
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| 157 | if ( $offset == 0 ) |
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| 158 | return; |
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| 159 | |
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| 160 | $split = $this->_frame->get_node()->splitText($offset); |
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| 161 | $deco = $this->copy($split); |
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| 162 | |
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| 163 | $p = $this->get_parent(); |
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| 164 | $p->insert_child_after($deco, $this, false); |
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| 165 | |
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| 166 | if ( $p instanceof Inline_Frame_Decorator ) |
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| 167 | $p->split($deco); |
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| 168 | |
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| 169 | } |
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| 170 | |
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| 171 | //........................................................................ |
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| 172 | |
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| 173 | function delete_text($offset, $count) { |
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| 174 | $this->_frame->get_node()->deleteData($offset, $count); |
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| 175 | } |
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| 176 | |
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| 177 | //........................................................................ |
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| 178 | |
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| 179 | function set_text($text) { |
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| 180 | $this->_frame->get_node()->data = $text; |
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| 181 | } |
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| 182 | |
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| 183 | } |
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| 184 | ?> |
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