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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Console\Helper;
use Symfony\Component\Console\Output\OutputInterface;
/**
* Provides helpers to display a table.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Саша Стаменковић <umpirsky@gmail.com>
*/
class Table
{
/**
* Table headers.
*
* @var array
*/
private $headers = array();
/**
* Table rows.
*
* @var array
*/
private $rows = array();
/**
* Column widths cache.
*
* @var array
*/
private $columnWidths = array();
/**
* Number of columns cache.
*
* @var array
*/
private $numberOfColumns;
/**
* @var OutputInterface
*/
private $output;
/**
* @var TableStyle
*/
private $style;
private static $styles;
public function __construct(OutputInterface $output)
{
$this->output = $output;
if (!self::$styles) {
self::$styles = self::initStyles();
}
$this->setStyle('default');
}
/**
* Sets a style definition.
*
* @param string $name The style name
* @param TableStyle $style A TableStyle instance
*/
public static function setStyleDefinition($name, TableStyle $style)
{
if (!self::$styles) {
self::$styles = self::initStyles();
}
self::$styles[$name] = $style;
}
/**
* Gets a style definition by name.
*
* @param string $name The style name
*
* @return TableStyle A TableStyle instance
*/
public static function getStyleDefinition($name)
{
if (!self::$styles) {
self::$styles = self::initStyles();
}
if (!self::$styles[$name]) {
throw new \InvalidArgumentException(sprintf('Style "%s" is not defined.', $name));
}
return self::$styles[$name];
}
/**
* Sets table style.
*
* @param TableStyle|string $name The style name or a TableStyle instance
*
* @return Table
*/
public function setStyle($name)
{
if ($name instanceof TableStyle) {
$this->style = $name;
} elseif (isset(self::$styles[$name])) {
$this->style = self::$styles[$name];
} else {
throw new \InvalidArgumentException(sprintf('Style "%s" is not defined.', $name));
}
return $this;
}
/**
* Gets the current table style.
*
* @return TableStyle
*/
public function getStyle()
{
return $this->style;
}
public function setHeaders(array $headers)
{
$this->headers = array_values($headers);
return $this;
}
public function setRows(array $rows)
{
$this->rows = array();
return $this->addRows($rows);
}
public function addRows(array $rows)
{
foreach ($rows as $row) {
$this->addRow($row);
}
return $this;
}
public function addRow($row)
{
if ($row instanceof TableSeparator) {
$this->rows[] = $row;
return;
}
if (!is_array($row)) {
throw new \InvalidArgumentException('A row must be an array or a TableSeparator instance.');
}
$this->rows[] = array_values($row);
$keys = array_keys($this->rows);
$rowKey = array_pop($keys);
foreach ($row as $key => $cellValue) {
if (!strstr($cellValue, "\n")) {
continue;
}
$lines = explode("\n", $cellValue);
$this->rows[$rowKey][$key] = $lines[0];
unset($lines[0]);
foreach ($lines as $lineKey => $line) {
$nextRowKey = $rowKey + $lineKey + 1;
if (isset($this->rows[$nextRowKey])) {
$this->rows[$nextRowKey][$key] = $line;
} else {
$this->rows[$nextRowKey] = array($key => $line);
}
}
}
return $this;
}
public function setRow($column, array $row)
{
$this->rows[$column] = $row;
return $this;
}
/**
* Renders table to output.
*
* Example:
* +---------------+-----------------------+------------------+
* | ISBN | Title | Author |
* +---------------+-----------------------+------------------+
* | 99921-58-10-7 | Divine Comedy | Dante Alighieri |
* | 9971-5-0210-0 | A Tale of Two Cities | Charles Dickens |
* | 960-425-059-0 | The Lord of the Rings | J. R. R. Tolkien |
* +---------------+-----------------------+------------------+
*/
public function render()
{
$this->renderRowSeparator();
$this->renderRow($this->headers, $this->style->getCellHeaderFormat());
if (!empty($this->headers)) {
$this->renderRowSeparator();
}
foreach ($this->rows as $row) {
if ($row instanceof TableSeparator) {
$this->renderRowSeparator();
} else {
$this->renderRow($row, $this->style->getCellRowFormat());
}
}
if (!empty($this->rows)) {
$this->renderRowSeparator();
}
$this->cleanup();
}
/**
* Renders horizontal header separator.
*
* Example: +-----+-----------+-------+
*/
private function renderRowSeparator()
{
if (0 === $count = $this->getNumberOfColumns()) {
return;
}
if (!$this->style->getHorizontalBorderChar() && !$this->style->getCrossingChar()) {
return;
}
$markup = $this->style->getCrossingChar();
for ($column = 0; $column < $count; $column++) {
$markup .= str_repeat($this->style->getHorizontalBorderChar(), $this->getColumnWidth($column)).$this->style->getCrossingChar();
}
$this->output->writeln(sprintf($this->style->getBorderFormat(), $markup));
}
/**
* Renders vertical column separator.
*/
private function renderColumnSeparator()
{
$this->output->write(sprintf($this->style->getBorderFormat(), $this->style->getVerticalBorderChar()));
}
/**
* Renders table row.
*
* Example: | 9971-5-0210-0 | A Tale of Two Cities | Charles Dickens |
*
* @param array $row
* @param string $cellFormat
*/
private function renderRow(array $row, $cellFormat)
{
if (empty($row)) {
return;
}
$this->renderColumnSeparator();
for ($column = 0, $count = $this->getNumberOfColumns(); $column < $count; $column++) {
$this->renderCell($row, $column, $cellFormat);
$this->renderColumnSeparator();
}
$this->output->writeln('');
}
/**
* Renders table cell with padding.
*
* @param array $row
* @param int $column
* @param string $cellFormat
*/
private function renderCell(array $row, $column, $cellFormat)
{
$cell = isset($row[$column]) ? $row[$column] : '';
$width = $this->getColumnWidth($column);
// str_pad won't work properly with multi-byte strings, we need to fix the padding
if (function_exists('mb_strlen') && false !== $encoding = mb_detect_encoding($cell)) {
$width += strlen($cell) - mb_strlen($cell, $encoding);
}
$width += Helper::strlen($cell) - Helper::strlenWithoutDecoration($this->output->getFormatter(), $cell);
$content = sprintf($this->style->getCellRowContentFormat(), $cell);
$this->output->write(sprintf($cellFormat, str_pad($content, $width, $this->style->getPaddingChar(), $this->style->getPadType())));
}
/**
* Gets number of columns for this table.
*
* @return int
*/
private function getNumberOfColumns()
{
if (null !== $this->numberOfColumns) {
return $this->numberOfColumns;
}
$columns = array(count($this->headers));
foreach ($this->rows as $row) {
$columns[] = count($row);
}
return $this->numberOfColumns = max($columns);
}
/**
* Gets column width.
*
* @param int $column
*
* @return int
*/
private function getColumnWidth($column)
{
if (isset($this->columnWidths[$column])) {
return $this->columnWidths[$column];
}
$lengths = array($this->getCellWidth($this->headers, $column));
foreach ($this->rows as $row) {
if ($row instanceof TableSeparator) {
continue;
}
$lengths[] = $this->getCellWidth($row, $column);
}
return $this->columnWidths[$column] = max($lengths) + strlen($this->style->getCellRowContentFormat()) - 2;
}
/**
* Gets cell width.
*
* @param array $row
* @param int $column
*
* @return int
*/
private function getCellWidth(array $row, $column)
{
return isset($row[$column]) ? Helper::strlenWithoutDecoration($this->output->getFormatter(), $row[$column]) : 0;
}
/**
* Called after rendering to cleanup cache data.
*/
private function cleanup()
{
$this->columnWidths = array();
$this->numberOfColumns = null;
}
private static function initStyles()
{
$borderless = new TableStyle();
$borderless
->setHorizontalBorderChar('=')
->setVerticalBorderChar(' ')
->setCrossingChar(' ')
;
$compact = new TableStyle();
$compact
->setHorizontalBorderChar('')
->setVerticalBorderChar(' ')
->setCrossingChar('')
->setCellRowContentFormat('%s')
;
return array(
'default' => new TableStyle(),
'borderless' => $borderless,
'compact' => $compact,
);
}
}