visualizer / vendor / phpoffice / phpspreadsheet / src / PhpSpreadsheet / Worksheet / ColumnCellIterator.php

ColumnCellIterator.php in Visualizer – Tables & Charts Manager with Built-in AI Generator 3.9.4, at vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Worksheet/ColumnCellIterator.php

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1	<?php
2
3	namespace PhpOffice\PhpSpreadsheet\Worksheet;
4
5	use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
6	use PhpOffice\PhpSpreadsheet\Exception as PhpSpreadsheetException;
7
8	class ColumnCellIterator extends CellIterator
9	{
10	/**
11	* Current iterator position.
12	*
13	* @var int
14	*/
15	private $currentRow;
16
17	/**
18	* Column index.
19	*
20	* @var string
21	*/
22	private $columnIndex;
23
24	/**
25	* Start position.
26	*
27	* @var int
28	*/
29	private $startRow = 1;
30
31	/**
32	* End position.
33	*
34	* @var int
35	*/
36	private $endRow = 1;
37
38	/**
39	* Create a new row iterator.
40	*
41	* @param Worksheet $subject The worksheet to iterate over
42	* @param string $columnIndex The column that we want to iterate
43	* @param int $startRow The row number at which to start iterating
44	* @param int $endRow Optionally, the row number at which to stop iterating
45	*/
46	public function __construct(Worksheet $subject = null, $columnIndex = 'A', $startRow = 1, $endRow = null)
47	{
48	// Set subject
49	$this->worksheet = $subject;
50	$this->columnIndex = Coordinate::columnIndexFromString($columnIndex);
51	$this->resetEnd($endRow);
52	$this->resetStart($startRow);
53	}
54
55	/**
56	* (Re)Set the start row and the current row pointer.
57	*
58	* @param int $startRow The row number at which to start iterating
59	*
60	* @throws PhpSpreadsheetException
61	*
62	* @return ColumnCellIterator
63	*/
64	public function resetStart($startRow = 1)
65	{
66	$this->startRow = $startRow;
67	$this->adjustForExistingOnlyRange();
68	$this->seek($startRow);
69
70	return $this;
71	}
72
73	/**
74	* (Re)Set the end row.
75	*
76	* @param int $endRow The row number at which to stop iterating
77	*
78	* @throws PhpSpreadsheetException
79	*
80	* @return ColumnCellIterator
81	*/
82	public function resetEnd($endRow = null)
83	{
84	$this->endRow = ($endRow) ? $endRow : $this->worksheet->getHighestRow();
85	$this->adjustForExistingOnlyRange();
86
87	return $this;
88	}
89
90	/**
91	* Set the row pointer to the selected row.
92	*
93	* @param int $row The row number to set the current pointer at
94	*
95	* @throws PhpSpreadsheetException
96	*
97	* @return ColumnCellIterator
98	*/
99	public function seek($row = 1)
100	{
101	if (($row < $this->startRow) \|\| ($row > $this->endRow)) {
102	throw new PhpSpreadsheetException("Row $row is out of range ({$this->startRow} - {$this->endRow})");
103	} elseif ($this->onlyExistingCells && !($this->worksheet->cellExistsByColumnAndRow($this->columnIndex, $row))) {
104	throw new PhpSpreadsheetException('In "IterateOnlyExistingCells" mode and Cell does not exist');
105	}
106	$this->currentRow = $row;
107
108	return $this;
109	}
110
111	/**
112	* Rewind the iterator to the starting row.
113	*/
114	public function rewind()
115	{
116	$this->currentRow = $this->startRow;
117	}
118
119	/**
120	* Return the current cell in this worksheet column.
121	*
122	* @return null\|\PhpOffice\PhpSpreadsheet\Cell\Cell
123	*/
124	public function current()
125	{
126	return $this->worksheet->getCellByColumnAndRow($this->columnIndex, $this->currentRow);
127	}
128
129	/**
130	* Return the current iterator key.
131	*
132	* @return int
133	*/
134	public function key()
135	{
136	return $this->currentRow;
137	}
138
139	/**
140	* Set the iterator to its next value.
141	*/
142	public function next()
143	{
144	do {
145	++$this->currentRow;
146	} while (($this->onlyExistingCells) &&
147	(!$this->worksheet->cellExistsByColumnAndRow($this->columnIndex, $this->currentRow)) &&
148	($this->currentRow <= $this->endRow));
149	}
150
151	/**
152	* Set the iterator to its previous value.
153	*/
154	public function prev()
155	{
156	do {
157	--$this->currentRow;
158	} while (($this->onlyExistingCells) &&
159	(!$this->worksheet->cellExistsByColumnAndRow($this->columnIndex, $this->currentRow)) &&
160	($this->currentRow >= $this->startRow));
161	}
162
163	/**
164	* Indicate if more rows exist in the worksheet range of rows that we're iterating.
165	*
166	* @return bool
167	*/
168	public function valid()
169	{
170	return $this->currentRow <= $this->endRow && $this->currentRow >= $this->startRow;
171	}
172
173	/**
174	* Validate start/end values for "IterateOnlyExistingCells" mode, and adjust if necessary.
175	*
176	* @throws PhpSpreadsheetException
177	*/
178	protected function adjustForExistingOnlyRange()
179	{
180	if ($this->onlyExistingCells) {
181	while ((!$this->worksheet->cellExistsByColumnAndRow($this->columnIndex, $this->startRow)) &&
182	($this->startRow <= $this->endRow)) {
183	++$this->startRow;
184	}
185	if ($this->startRow > $this->endRow) {
186	throw new PhpSpreadsheetException('No cells exist within the specified range');
187	}
188	while ((!$this->worksheet->cellExistsByColumnAndRow($this->columnIndex, $this->endRow)) &&
189	($this->endRow >= $this->startRow)) {
190	--$this->endRow;
191	}
192	if ($this->endRow < $this->startRow) {
193	throw new PhpSpreadsheetException('No cells exist within the specified range');
194	}
195	}
196	}
197	}
198