Table.php in Zircon Profile 8

Namespace

Symfony\Component\Console\Helper

File

vendor/symfony/console/Helper/Table.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <[e-mail]>
 *
 * 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 <[e-mail]>
 * @author Саша Стаменковић <[e-mail]>
 * @author Abdellatif Ait boudad <[e-mail]>
 */
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) {
    $headers = array_values($headers);
    if (!empty($headers) && !is_array($headers[0])) {
      $headers = array(
        $headers,
      );
    }
    $this->headers = $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 $this;
    }
    if (!is_array($row)) {
      throw new \InvalidArgumentException('A row must be an array or a TableSeparator instance.');
    }
    $this->rows[] = array_values($row);
    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
      ->calculateNumberOfColumns();
    $this->rows = $this
      ->buildTableRows($this->rows);
    $this->headers = $this
      ->buildTableRows($this->headers);
    $this
      ->renderRowSeparator();
    if (!empty($this->headers)) {
      foreach ($this->headers as $header) {
        $this
          ->renderRow($header, $this->style
          ->getCellHeaderFormat());
        $this
          ->renderRowSeparator();
      }
    }
    foreach ($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 = $this->numberOfColumns)) {
      return;
    }
    if (!$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;
    }
    $this
      ->renderColumnSeparator();
    foreach ($this
      ->getRowColumns($row) as $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);
    if ($cell instanceof TableCell && $cell
      ->getColspan() > 1) {

      // add the width of the following columns(numbers of colspan).
      foreach (range($column + 1, $column + $cell
        ->getColspan() - 1) as $nextColumn) {
        $width += $this
          ->getColumnSeparatorWidth() + $this
          ->getColumnWidth($nextColumn);
      }
    }

    // str_pad won't work properly with multi-byte strings, we need to fix the padding
    if (function_exists('mb_strwidth') && false !== ($encoding = mb_detect_encoding($cell))) {
      $width += strlen($cell) - mb_strwidth($cell, $encoding);
    }
    if ($cell instanceof TableSeparator) {
      $this->output
        ->write(sprintf($this->style
        ->getBorderFormat(), str_repeat($this->style
        ->getHorizontalBorderChar(), $width)));
    }
    else {
      $width += Helper::strlen($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())));
    }
  }

  /**
   * Calculate number of columns for this table.
   */
  private function calculateNumberOfColumns() {
    if (null !== $this->numberOfColumns) {
      return;
    }
    $columns = array(
      0,
    );
    foreach (array_merge($this->headers, $this->rows) as $row) {
      if ($row instanceof TableSeparator) {
        continue;
      }
      $columns[] = $this
        ->getNumberOfColumns($row);
    }
    return $this->numberOfColumns = max($columns);
  }
  private function buildTableRows($rows) {
    $unmergedRows = array();
    for ($rowKey = 0; $rowKey < count($rows); ++$rowKey) {
      $rows = $this
        ->fillNextRows($rows, $rowKey);

      // Remove any new line breaks and replace it with a new line
      foreach ($rows[$rowKey] as $column => $cell) {
        $rows[$rowKey] = $this
          ->fillCells($rows[$rowKey], $column);
        if (!strstr($cell, "\n")) {
          continue;
        }
        $lines = explode("\n", $cell);
        foreach ($lines as $lineKey => $line) {
          if ($cell instanceof TableCell) {
            $line = new TableCell($line, array(
              'colspan' => $cell
                ->getColspan(),
            ));
          }
          if (0 === $lineKey) {
            $rows[$rowKey][$column] = $line;
          }
          else {
            $unmergedRows[$rowKey][$lineKey][$column] = $line;
          }
        }
      }
    }
    $tableRows = array();
    foreach ($rows as $rowKey => $row) {
      $tableRows[] = $row;
      if (isset($unmergedRows[$rowKey])) {
        $tableRows = array_merge($tableRows, $unmergedRows[$rowKey]);
      }
    }
    return $tableRows;
  }

  /**
   * fill rows that contains rowspan > 1.
   *
   * @param array $rows
   * @param int   $line
   *
   * @return array
   */
  private function fillNextRows($rows, $line) {
    $unmergedRows = array();
    foreach ($rows[$line] as $column => $cell) {
      if ($cell instanceof TableCell && $cell
        ->getRowspan() > 1) {
        $nbLines = $cell
          ->getRowspan() - 1;
        $lines = array(
          $cell,
        );
        if (strstr($cell, "\n")) {
          $lines = explode("\n", $cell);
          $nbLines = count($lines) > $nbLines ? substr_count($cell, "\n") : $nbLines;
          $rows[$line][$column] = new TableCell($lines[0], array(
            'colspan' => $cell
              ->getColspan(),
          ));
          unset($lines[0]);
        }

        // create a two dimensional array (rowspan x colspan)
        $unmergedRows = array_replace_recursive(array_fill($line + 1, $nbLines, ''), $unmergedRows);
        foreach ($unmergedRows as $unmergedRowKey => $unmergedRow) {
          $value = isset($lines[$unmergedRowKey - $line]) ? $lines[$unmergedRowKey - $line] : '';
          $unmergedRows[$unmergedRowKey][$column] = new TableCell($value, array(
            'colspan' => $cell
              ->getColspan(),
          ));
        }
      }
    }
    foreach ($unmergedRows as $unmergedRowKey => $unmergedRow) {

      // we need to know if $unmergedRow will be merged or inserted into $rows
      if (isset($rows[$unmergedRowKey]) && is_array($rows[$unmergedRowKey]) && $this
        ->getNumberOfColumns($rows[$unmergedRowKey]) + $this
        ->getNumberOfColumns($unmergedRows[$unmergedRowKey]) <= $this->numberOfColumns) {
        foreach ($unmergedRow as $cellKey => $cell) {

          // insert cell into row at cellKey position
          array_splice($rows[$unmergedRowKey], $cellKey, 0, array(
            $cell,
          ));
        }
      }
      else {
        $row = $this
          ->copyRow($rows, $unmergedRowKey - 1);
        foreach ($unmergedRow as $column => $cell) {
          if (!empty($cell)) {
            $row[$column] = $unmergedRow[$column];
          }
        }
        array_splice($rows, $unmergedRowKey, 0, array(
          $row,
        ));
      }
    }
    return $rows;
  }

  /**
   * fill cells for a row that contains colspan > 1.
   *
   * @param array $row
   * @param int   $column
   *
   * @return array
   */
  private function fillCells($row, $column) {
    $cell = $row[$column];
    if ($cell instanceof TableCell && $cell
      ->getColspan() > 1) {
      foreach (range($column + 1, $column + $cell
        ->getColspan() - 1) as $position) {

        // insert empty value into rows at column position
        array_splice($row, $position, 0, '');
      }
    }
    return $row;
  }

  /**
   * @param array $rows
   * @param int   $line
   *
   * @return array
   */
  private function copyRow($rows, $line) {
    $row = $rows[$line];
    foreach ($row as $cellKey => $cellValue) {
      $row[$cellKey] = '';
      if ($cellValue instanceof TableCell) {
        $row[$cellKey] = new TableCell('', array(
          'colspan' => $cellValue
            ->getColspan(),
        ));
      }
    }
    return $row;
  }

  /**
   * Gets number of columns by row.
   *
   * @param array $row
   *
   * @return int
   */
  private function getNumberOfColumns(array $row) {
    $columns = count($row);
    foreach ($row as $column) {
      $columns += $column instanceof TableCell ? $column
        ->getColspan() - 1 : 0;
    }
    return $columns;
  }

  /**
   * Gets list of columns for the given row.
   *
   * @param array $row
   *
   * @return array()
   */
  private function getRowColumns($row) {
    $columns = range(0, $this->numberOfColumns - 1);
    foreach ($row as $cellKey => $cell) {
      if ($cell instanceof TableCell && $cell
        ->getColspan() > 1) {

        // exclude grouped columns.
        $columns = array_diff($columns, range($cellKey + 1, $cellKey + $cell
          ->getColspan() - 1));
      }
    }
    return $columns;
  }

  /**
   * Gets column width.
   *
   * @param int $column
   *
   * @return int
   */
  private function getColumnWidth($column) {
    if (isset($this->columnWidths[$column])) {
      return $this->columnWidths[$column];
    }
    foreach (array_merge($this->headers, $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 column width.
   *
   * @param int $column
   *
   * @return int
   */
  private function getColumnSeparatorWidth() {
    return strlen(sprintf($this->style
      ->getBorderFormat(), $this->style
      ->getVerticalBorderChar()));
  }

  /**
   * Gets cell width.
   *
   * @param array $row
   * @param int   $column
   *
   * @return int
   */
  private function getCellWidth(array $row, $column) {
    if (isset($row[$column])) {
      $cell = $row[$column];
      $cellWidth = Helper::strlenWithoutDecoration($this->output
        ->getFormatter(), $cell);
      if ($cell instanceof TableCell && $cell
        ->getColspan() > 1) {

        // we assume that cell value will be across more than one column.
        $cellWidth = $cellWidth / $cell
          ->getColspan();
      }
      return $cellWidth;
    }
    return 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');
    $styleGuide = new TableStyle();
    $styleGuide
      ->setHorizontalBorderChar('-')
      ->setVerticalBorderChar(' ')
      ->setCrossingChar(' ')
      ->setCellHeaderFormat('%s');
    return array(
      'default' => new TableStyle(),
      'borderless' => $borderless,
      'compact' => $compact,
      'symfony-style-guide' => $styleGuide,
    );
  }

}

Classes

Name	Description
Table	Provides helpers to display a table.