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<?php
/**
* @see https://github.com/zendframework/zend-text for the canonical source repository
* @copyright Copyright (c) 2005-2018 Zend Technologies USA Inc. (https://www.zend.com)
* @license https://github.com/zendframework/zend-text/blob/master/LICENSE.md New BSD License
*/
namespace Zend\Text\Table;
use Zend\Text\Table\Decorator\DecoratorInterface as Decorator;
/**
* Row class for Zend\Text\Table
*/
class Row
{
/**
* List of all columns
*
* @var array
*/
protected $columns = [];
/**
* Temporary stored column widths
*
* @var array
*/
protected $columnWidths = null;
/**
* Create a new column and append it to the row
*
* @param string $content
* @param array $options
* @return Row
*/
public function createColumn($content, array $options = null)
{
$align = null;
$colSpan = null;
$encoding = null;
if ($options !== null) {
extract($options, EXTR_IF_EXISTS);
}
$column = new Column($content, $align, $colSpan, $encoding);
$this->appendColumn($column);
return $this;
}
/**
* Append a column to the row
*
* @param \Zend\Text\Table\Column $column The column to append to the row
* @return Row
*/
public function appendColumn(Column $column)
{
$this->columns[] = $column;
return $this;
}
/**
* Get a column by it's index
*
* Returns null, when the index is out of range
*
* @param int $index
* @return Column|null
*/
public function getColumn($index)
{
if (! isset($this->columns[$index])) {
return;
}
return $this->columns[$index];
}
/**
* Get all columns of the row
*
* @return array
*/
public function getColumns()
{
return $this->columns;
}
/**
* Get the widths of all columns, which were rendered last
*
* @throws Exception\UnexpectedValueException When no columns were rendered yet
* @return int
*/
public function getColumnWidths()
{
if ($this->columnWidths === null) {
throw new Exception\UnexpectedValueException(
'render() must be called before columnWidths can be populated'
);
}
return $this->columnWidths;
}
/**
* Render the row
*
* @param array $columnWidths Width of all columns
* @param Decorator $decorator Decorator for the row borders
* @param int $padding Padding for the columns
* @throws Exception\OverflowException When there are too many columns
* @return string
*/
public function render(array $columnWidths, Decorator $decorator, $padding = 0)
{
// Prepare an array to store all column widths
$this->columnWidths = [];
// If there is no single column, create a column which spans over the
// entire row
if (count($this->columns) === 0) {
$this->appendColumn(new Column(null, null, count($columnWidths)));
}
// First we have to render all columns, to get the maximum height
$renderedColumns = [];
$maxHeight = 0;
$colNum = 0;
foreach ($this->columns as $column) {
// Get the colspan of the column
$colSpan = $column->getColSpan();
// Verify if there are enough column widths defined
if (($colNum + $colSpan) > count($columnWidths)) {
throw new Exception\OverflowException('Too many columns');
}
// Calculate the column width
$columnWidth = ($colSpan - 1 + array_sum(array_slice($columnWidths, $colNum, $colSpan)));
// Render the column and split it's lines into an array
$result = explode("\n", $column->render($columnWidth, $padding));
// Store the width of the rendered column
$this->columnWidths[] = $columnWidth;
// Store the rendered column and calculate the new max height
$renderedColumns[] = $result;
$maxHeight = max($maxHeight, count($result));
// Set up the internal column number
$colNum += $colSpan;
}
// If the row doesnt contain enough columns to fill the entire row, fill
// it with an empty column
if ($colNum < count($columnWidths)) {
$remainingWidth = (count($columnWidths) - $colNum - 1) +
array_sum(array_slice($columnWidths, $colNum));
$renderedColumns[] = [str_repeat(' ', $remainingWidth)];
$this->columnWidths[] = $remainingWidth;
}
// Add each single column line to the result
$result = '';
for ($line = 0; $line < $maxHeight; $line++) {
$result .= $decorator->getVertical();
foreach ($renderedColumns as $index => $renderedColumn) {
if (isset($renderedColumn[$line]) === true) {
$result .= $renderedColumn[$line];
} else {
$result .= str_repeat(' ', $this->columnWidths[$index]);
}
$result .= $decorator->getVertical();
}
$result .= "\n";
}
return $result;
}
}