source: branches/2.2/filemanager/tp/dompdf/include/block_frame_decorator.cls.php @ 3019

Revision 3019, 9.0 KB checked in by amuller, 14 years ago (diff)

Ticket #1135 - Corrigindo CSS e adicionando filemanager

Line 
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 */
48class 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?>
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