visualizer / vendor / phpoffice / phpexcel / Classes / PHPExcel / HashTable.php

HashTable.php in Visualizer – Tables & Charts Manager with Built-in AI Generator 3.0.3, at vendor/phpoffice/phpexcel/Classes/PHPExcel/HashTable.php

203 lines 4.3 KB

Raw Download Zip

1	<?php
2	/**
3	* PHPExcel
4	*
5	* Copyright (c) 2006 - 2014 PHPExcel
6	*
7	* This library is free software; you can redistribute it and/or
8	* modify it under the terms of the GNU Lesser General Public
9	* License as published by the Free Software Foundation; either
10	* version 2.1 of the License, or (at your option) any later version.
11	*
12	* This library is distributed in the hope that it will be useful,
13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15	* Lesser General Public License for more details.
16	*
17	* You should have received a copy of the GNU Lesser General Public
18	* License along with this library; if not, write to the Free Software
19	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20	*
21	* @category PHPExcel
22	* @package PHPExcel
23	* @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
24	* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
25	* @version ##VERSION##, ##DATE##
26	*/
27
28
29	/**
30	* PHPExcel_HashTable
31	*
32	* @category PHPExcel
33	* @package PHPExcel
34	* @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
35	*/
36	class PHPExcel_HashTable
37	{
38	/**
39	* HashTable elements
40	*
41	* @var array
42	*/
43	public $_items = array();
44
45	/**
46	* HashTable key map
47	*
48	* @var array
49	*/
50	public $_keyMap = array();
51
52	/**
53	* Create a new PHPExcel_HashTable
54	*
55	* @param PHPExcel_IComparable[] $pSource Optional source array to create HashTable from
56	* @throws PHPExcel_Exception
57	*/
58	public function __construct($pSource = null)
59	{
60	if ($pSource !== NULL) {
61	// Create HashTable
62	$this->addFromSource($pSource);
63	}
64	}
65
66	/**
67	* Add HashTable items from source
68	*
69	* @param PHPExcel_IComparable[] $pSource Source array to create HashTable from
70	* @throws PHPExcel_Exception
71	*/
72	public function addFromSource($pSource = null) {
73	// Check if an array was passed
74	if ($pSource == null) {
75	return;
76	} else if (!is_array($pSource)) {
77	throw new PHPExcel_Exception('Invalid array parameter passed.');
78	}
79
80	foreach ($pSource as $item) {
81	$this->add($item);
82	}
83	}
84
85	/**
86	* Add HashTable item
87	*
88	* @param PHPExcel_IComparable $pSource Item to add
89	* @throws PHPExcel_Exception
90	*/
91	public function add(PHPExcel_IComparable $pSource = null) {
92	$hash = $pSource->getHashCode();
93	if (!isset($this->_items[$hash])) {
94	$this->_items[$hash] = $pSource;
95	$this->_keyMap[count($this->_items) - 1] = $hash;
96	}
97	}
98
99	/**
100	* Remove HashTable item
101	*
102	* @param PHPExcel_IComparable $pSource Item to remove
103	* @throws PHPExcel_Exception
104	*/
105	public function remove(PHPExcel_IComparable $pSource = null) {
106	$hash = $pSource->getHashCode();
107	if (isset($this->_items[$hash])) {
108	unset($this->_items[$hash]);
109
110	$deleteKey = -1;
111	foreach ($this->_keyMap as $key => $value) {
112	if ($deleteKey >= 0) {
113	$this->_keyMap[$key - 1] = $value;
114	}
115
116	if ($value == $hash) {
117	$deleteKey = $key;
118	}
119	}
120	unset($this->_keyMap[count($this->_keyMap) - 1]);
121	}
122	}
123
124	/**
125	* Clear HashTable
126	*
127	*/
128	public function clear() {
129	$this->_items = array();
130	$this->_keyMap = array();
131	}
132
133	/**
134	* Count
135	*
136	* @return int
137	*/
138	public function count() {
139	return count($this->_items);
140	}
141
142	/**
143	* Get index for hash code
144	*
145	* @param string $pHashCode
146	* @return int Index
147	*/
148	public function getIndexForHashCode($pHashCode = '') {
149	return array_search($pHashCode, $this->_keyMap);
150	}
151
152	/**
153	* Get by index
154	*
155	* @param int $pIndex
156	* @return PHPExcel_IComparable
157	*
158	*/
159	public function getByIndex($pIndex = 0) {
160	if (isset($this->_keyMap[$pIndex])) {
161	return $this->getByHashCode( $this->_keyMap[$pIndex] );
162	}
163
164	return null;
165	}
166
167	/**
168	* Get by hashcode
169	*
170	* @param string $pHashCode
171	* @return PHPExcel_IComparable
172	*
173	*/
174	public function getByHashCode($pHashCode = '') {
175	if (isset($this->_items[$pHashCode])) {
176	return $this->_items[$pHashCode];
177	}
178
179	return null;
180	}
181
182	/**
183	* HashTable to array
184	*
185	* @return PHPExcel_IComparable[]
186	*/
187	public function toArray() {
188	return $this->_items;
189	}
190
191	/**
192	* Implement PHP __clone to create a deep clone, not just a shallow copy.
193	*/
194	public function __clone() {
195	$vars = get_object_vars($this);
196	foreach ($vars as $key => $value) {
197	if (is_object($value)) {
198	$this->$key = clone $value;
199	}
200	}
201	}
202	}
203