1 | <?php
|
---|
2 | /**
|
---|
3 | * DOMPDF - PHP5 HTML to PDF renderer
|
---|
4 | *
|
---|
5 | * File: $RCSfile: block_frame_decorator.cls.php,v $
|
---|
6 | * Created on: 2004-06-02
|
---|
7 | *
|
---|
8 | * Copyright (c) 2004 - Benj Carson <benjcarson@digitaljunkies.ca>
|
---|
9 | *
|
---|
10 | * This library is free software; you can redistribute it and/or
|
---|
11 | * modify it under the terms of the GNU Lesser General Public
|
---|
12 | * License as published by the Free Software Foundation; either
|
---|
13 | * version 2.1 of the License, or (at your option) any later version.
|
---|
14 | *
|
---|
15 | * This library is distributed in the hope that it will be useful,
|
---|
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
---|
18 | * Lesser General Public License for more details.
|
---|
19 | *
|
---|
20 | * You should have received a copy of the GNU Lesser General Public License
|
---|
21 | * along with this library in the file LICENSE.LGPL; if not, write to the
|
---|
22 | * Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
---|
23 | * 02111-1307 USA
|
---|
24 | *
|
---|
25 | * Alternatively, you may distribute this software under the terms of the
|
---|
26 | * PHP License, version 3.0 or later. A copy of this license should have
|
---|
27 | * been distributed with this file in the file LICENSE.PHP . If this is not
|
---|
28 | * the case, you can obtain a copy at http://www.php.net/license/3_0.txt.
|
---|
29 | *
|
---|
30 | * The latest version of DOMPDF might be available at:
|
---|
31 | * http://www.digitaljunkies.ca/dompdf
|
---|
32 | *
|
---|
33 | * @link http://www.digitaljunkies.ca/dompdf
|
---|
34 | * @copyright 2004 Benj Carson
|
---|
35 | * @author Benj Carson <benjcarson@digitaljunkies.ca>
|
---|
36 | * @package dompdf
|
---|
37 | * @version 0.5.1
|
---|
38 | */
|
---|
39 |
|
---|
40 | /* $Id: block_frame_decorator.cls.php 186 2009-10-19 22:42:06Z eclecticgeek@gmail.com $ */
|
---|
41 |
|
---|
42 | /**
|
---|
43 | * Decorates frames for block layout
|
---|
44 | *
|
---|
45 | * @access private
|
---|
46 | * @package dompdf
|
---|
47 | */
|
---|
48 | class Block_Frame_Decorator extends Frame_Decorator {
|
---|
49 |
|
---|
50 | const DEFAULT_COUNTER = "-dompdf-default-counter";
|
---|
51 |
|
---|
52 | protected $_lines; // array( [num] => array([frames] => array(<frame list>),
|
---|
53 | // y, w, h) )
|
---|
54 | protected $_counters; // array([id] => counter_value) (for generated content)
|
---|
55 | protected $_cl; // current line index
|
---|
56 |
|
---|
57 | //........................................................................
|
---|
58 |
|
---|
59 | function __construct(Frame $frame, DOMPDF $dompdf) {
|
---|
60 | parent::__construct($frame, $dompdf);
|
---|
61 | $this->_lines = array(array("frames" => array(),
|
---|
62 | "wc" => 0,
|
---|
63 | "y" => null,
|
---|
64 | "w" => 0,
|
---|
65 | "h" => 0));
|
---|
66 | $this->_counters = array(self::DEFAULT_COUNTER => 0);
|
---|
67 | $this->_cl = 0;
|
---|
68 |
|
---|
69 | }
|
---|
70 |
|
---|
71 | //........................................................................
|
---|
72 |
|
---|
73 | function reset() {
|
---|
74 | parent::reset();
|
---|
75 | $this->_lines = array(array("frames" => array(),
|
---|
76 | "wc" => 0,
|
---|
77 | "y" => null,
|
---|
78 | "w" => 0,
|
---|
79 | "h" => 0));
|
---|
80 | $this->_counters = array(self::DEFAULT_COUNTER => 0);
|
---|
81 | $this->_cl = 0;
|
---|
82 | }
|
---|
83 |
|
---|
84 | //........................................................................
|
---|
85 |
|
---|
86 | // Accessor methods
|
---|
87 |
|
---|
88 | function get_current_line($i = null) {
|
---|
89 | $cl = $this->_lines[$this->_cl];
|
---|
90 | if ( isset($i) )
|
---|
91 | return $cl[$i];
|
---|
92 | return $cl;
|
---|
93 | }
|
---|
94 |
|
---|
95 | function get_lines() { return $this->_lines; }
|
---|
96 |
|
---|
97 | //........................................................................
|
---|
98 |
|
---|
99 | // Set methods
|
---|
100 | function set_current_line($y = null, $w = null, $h = null) {
|
---|
101 | $this->set_line($this->_cl, $y, $w, $h);
|
---|
102 | }
|
---|
103 |
|
---|
104 | function clear_line($i) {
|
---|
105 | if ( isset($this->_lines[$i]) )
|
---|
106 | unset($this->_lines[$i]);
|
---|
107 | }
|
---|
108 |
|
---|
109 | function set_line($lineno, $y = null, $w = null, $h = null) {
|
---|
110 |
|
---|
111 | if ( is_array($y) )
|
---|
112 | extract($y);
|
---|
113 |
|
---|
114 | if (is_numeric($y))
|
---|
115 | $this->_lines[$lineno]["y"] = $y;
|
---|
116 |
|
---|
117 | if (is_numeric($w))
|
---|
118 | $this->_lines[$lineno]["w"] = $w;
|
---|
119 |
|
---|
120 | if (is_numeric($h))
|
---|
121 | $this->_lines[$lineno]["h"] = $h;
|
---|
122 |
|
---|
123 | }
|
---|
124 |
|
---|
125 |
|
---|
126 | function add_frame_to_line(Frame $frame) {
|
---|
127 |
|
---|
128 | // Handle inline frames (which are effectively wrappers)
|
---|
129 | if ( $frame instanceof Inline_Frame_Decorator ) {
|
---|
130 |
|
---|
131 | // Handle line breaks
|
---|
132 | if ( $frame->get_node()->nodeName == "br" ) {
|
---|
133 | $this->maximize_line_height( $frame->get_style()->length_in_pt($frame->get_style()->line_height) );
|
---|
134 | $this->add_line();
|
---|
135 | return;
|
---|
136 | }
|
---|
137 |
|
---|
138 | // Add each child of the inline frame to the line individually
|
---|
139 | foreach ($frame->get_children() as $child)
|
---|
140 | $this->add_frame_to_line( $child );
|
---|
141 |
|
---|
142 | return;
|
---|
143 | }
|
---|
144 |
|
---|
145 | // Trim leading text if this is an empty line. Kinda a hack to put it here,
|
---|
146 | // but what can you do...
|
---|
147 | if ( $this->_lines[$this->_cl]["w"] == 0 &&
|
---|
148 | $frame->get_node()->nodeName == "#text" &&
|
---|
149 | ($frame->get_style()->white_space != "pre" ||
|
---|
150 | $frame->get_style()->white_space != "pre-wrap") ) {
|
---|
151 |
|
---|
152 | $frame->set_text( ltrim($frame->get_text()) );
|
---|
153 | $frame->recalculate_width();
|
---|
154 |
|
---|
155 | }
|
---|
156 |
|
---|
157 | $w = $frame->get_margin_width();
|
---|
158 |
|
---|
159 | if ( $w == 0 )
|
---|
160 | return;
|
---|
161 |
|
---|
162 | // Debugging code:
|
---|
163 | /*
|
---|
164 | pre_r("\nAdding frame to line:");
|
---|
165 |
|
---|
166 | // pre_r("Me: " . $this->get_node()->nodeName . " (" . spl_object_hash($this->get_node()) . ")");
|
---|
167 | // pre_r("Node: " . $frame->get_node()->nodeName . " (" . spl_object_hash($frame->get_node()) . ")");
|
---|
168 | if ( $frame->get_node()->nodeName == "#text" )
|
---|
169 | pre_r($frame->get_node()->nodeValue);
|
---|
170 |
|
---|
171 | pre_r("Line width: " . $this->_lines[$this->_cl]["w"]);
|
---|
172 | pre_r("Frame: " . get_class($frame));
|
---|
173 | pre_r("Frame width: " . $w);
|
---|
174 | pre_r("Frame height: " . $frame->get_margin_height());
|
---|
175 | pre_r("Containing block width: " . $this->get_containing_block("w"));
|
---|
176 | */
|
---|
177 | // End debugging
|
---|
178 |
|
---|
179 | if ($this->_lines[$this->_cl]["w"] + $w > $this->get_containing_block("w"))
|
---|
180 | $this->add_line();
|
---|
181 |
|
---|
182 | $frame->position();
|
---|
183 |
|
---|
184 |
|
---|
185 | $this->_lines[$this->_cl]["frames"][] = $frame;
|
---|
186 |
|
---|
187 | if ( $frame->get_node()->nodeName == "#text")
|
---|
188 | $this->_lines[$this->_cl]["wc"] += count(preg_split("/\s+/", $frame->get_text()));
|
---|
189 |
|
---|
190 | $this->_lines[$this->_cl]["w"] += $w;
|
---|
191 | $this->_lines[$this->_cl]["h"] = max($this->_lines[$this->_cl]["h"], $frame->get_margin_height());
|
---|
192 |
|
---|
193 | }
|
---|
194 |
|
---|
195 | function remove_frames_from_line(Frame $frame) {
|
---|
196 | // Search backwards through the lines for $frame
|
---|
197 | $i = $this->_cl;
|
---|
198 |
|
---|
199 | while ($i >= 0) {
|
---|
200 | if ( ($j = in_array($frame, $this->_lines[$i]["frames"], true)) !== false )
|
---|
201 | break;
|
---|
202 | $i--;
|
---|
203 | }
|
---|
204 |
|
---|
205 | if ( $j === false )
|
---|
206 | return;
|
---|
207 |
|
---|
208 | // Remove $frame and all frames that follow
|
---|
209 | while ($j < count($this->_lines[$i]["frames"])) {
|
---|
210 | $f = $this->_lines[$i]["frames"][$j];
|
---|
211 | unset($this->_lines[$i]["frames"][$j++]);
|
---|
212 | $this->_lines[$i]["w"] -= $f->get_margin_width();
|
---|
213 | }
|
---|
214 |
|
---|
215 | // Recalculate the height of the line
|
---|
216 | $h = 0;
|
---|
217 | foreach ($this->_lines[$i]["frames"] as $f)
|
---|
218 | $h = max( $h, $f->get_margin_height() );
|
---|
219 |
|
---|
220 | $this->_lines[$i]["h"] = $h;
|
---|
221 |
|
---|
222 | // Remove all lines that follow
|
---|
223 | while ($this->_cl > $i)
|
---|
224 | unset($this->_lines[ $this->_cl-- ]);
|
---|
225 |
|
---|
226 | }
|
---|
227 |
|
---|
228 | function increase_line_width($w) {
|
---|
229 | $this->_lines[ $this->_cl ]["w"] += $w;
|
---|
230 | }
|
---|
231 |
|
---|
232 | function maximize_line_height($val) {
|
---|
233 | $this->_lines[ $this->_cl ]["h"] = max($this->_lines[ $this->_cl ]["h"], $val);
|
---|
234 | }
|
---|
235 |
|
---|
236 | function add_line() {
|
---|
237 |
|
---|
238 | // if ( $this->_lines[$this->_cl]["h"] == 0 ) //count($this->_lines[$i]["frames"]) == 0 ||
|
---|
239 | // return;
|
---|
240 |
|
---|
241 | $y = $this->_lines[$this->_cl]["y"] + $this->_lines[$this->_cl]["h"];
|
---|
242 |
|
---|
243 | $this->_lines[ ++$this->_cl ] = array("frames" => array(),
|
---|
244 | "wc" => 0,
|
---|
245 | "y" => $y, "w" => 0, "h" => 0);
|
---|
246 | }
|
---|
247 |
|
---|
248 | //........................................................................
|
---|
249 |
|
---|
250 | function reset_counter($id = self::DEFAULT_COUNTER, $value = 0) {
|
---|
251 | $this->_counters[$id] = $value;
|
---|
252 | }
|
---|
253 |
|
---|
254 | function increment_counter($id = self::DEFAULT_COUNTER, $increment = 1) {
|
---|
255 | if ( !isset($this->_counters[$id]) )
|
---|
256 | $this->_counters[$id] = $increment;
|
---|
257 | else
|
---|
258 | $this->_counters[$id] += $increment;
|
---|
259 |
|
---|
260 | }
|
---|
261 |
|
---|
262 | function counter_value($id = self::DEFAULT_COUNTER, $type = "decimal") {
|
---|
263 | $type = mb_strtolower($type);
|
---|
264 | if ( !isset($this->_counters[$id]) )
|
---|
265 | $this->_counters[$id] = 0;
|
---|
266 |
|
---|
267 | switch ($type) {
|
---|
268 |
|
---|
269 | default:
|
---|
270 | case "decimal":
|
---|
271 | return $this->_counters[$id];
|
---|
272 |
|
---|
273 | case "decimal-leading-zero":
|
---|
274 | return str_pad($this->_counters[$id], 2, "0");
|
---|
275 |
|
---|
276 | case "lower-roman":
|
---|
277 | return dec2roman($this->_counters[$id]);
|
---|
278 |
|
---|
279 | case "upper-roman":
|
---|
280 | return mb_strtoupper(dec2roman($this->_counters[$id]));
|
---|
281 |
|
---|
282 | case "lower-latin":
|
---|
283 | case "lower-alpha":
|
---|
284 | return chr( ($this->_counters[$id] % 26) + ord('a') - 1);
|
---|
285 |
|
---|
286 | case "upper-latin":
|
---|
287 | case "upper-alpha":
|
---|
288 | return chr( ($this->_counters[$id] % 26) + ord('A') - 1);
|
---|
289 |
|
---|
290 | case "lower-greek":
|
---|
291 | return chr($this->_counters[$id] + 944);
|
---|
292 |
|
---|
293 | case "upper-greek":
|
---|
294 | return chr($this->_counters[$id] + 912);
|
---|
295 | }
|
---|
296 | }
|
---|
297 | }
|
---|
298 |
|
---|
299 | ?> |
---|