storage.php

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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */

/**
 * Storage class for HTML::Table data
 *
 * This class stores data for tables built with HTML_Table. When having
 * more than one instance, it can be used for grouping the table into the
 * parts <thead>...</thead>, <tfoot>...</tfoot> and <tbody>...</tbody>.
 *
 * PHP versions 4
 *
 * LICENSE: This source file is subject to version 3.0 of the PHP license
 * that is available through the world-wide-web at the following URI:
 * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
 * the PHP License and are unable to obtain it through the web, please
 * send a note to [e-mail] so we can mail you a copy immediately.
 *
 * @category   HTML
 * @package    HTML_Table
 * @author     Adam Daniel <[e-mail]>
 * @author     Bertrand Mansion <[e-mail]>
 * @copyright  2005 The PHP Group
 * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
 * @version    CVS: $Id: Storage.php,v 1.9 2006/09/18 20:06:45 wiesemann Exp $
 * @link       http://pear.php.net/package/HTML_Table
 */

/**
 * Storage class for HTML::Table data
 *
 * This class stores data for tables built with HTML_Table. When having
 * more than one instance, it can be used for grouping the table into the
 * parts <thead>...</thead>, <tfoot>...</tfoot> and <tbody>...</tbody>.
 *
 * @category   HTML
 * @package    HTML_Table
 * @author     Adam Daniel <[e-mail]>
 * @author     Bertrand Mansion <[e-mail]>
 * @author     Mark Wiesemann <[e-mail]>
 * @copyright  2005 The PHP Group
 * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
 * @version    Release: @package_version@
 * @link       http://pear.php.net/package/HTML_Table
 */
class HTML_Table_Storage extends HTML_Common {

    /**
     * Value to insert into empty cells
     * @var    string
     * @access private
     */
    var $_autoFill = '&nbsp;';

    /**
     * Automatically adds a new row or column if a given row or column index does not exist
     * @var    bool
     * @access private
     */
    var $_autoGrow = true;

    /**
     * Array containing the table structure
     * @var     array
     * @access  private
     */
    var $_structure = array();

    /**
     * Number of rows composing in the table
     * @var     int
     * @access  private
     */
    var $_rows = 0;

    /**
     * Number of column composing the table
     * @var     int
     * @access  private
     */
    var $_cols = 0;

    /**
     * Tracks the level of nested tables
     * @var    int
     * @access private
     */
    var $_nestLevel = 0;

    /**
     * Whether to use <thead>, <tfoot> and <tbody> or not
     * @var    bool
     * @access private
     */
    var $_useTGroups = false;

    /**
     * Class constructor
     * @param    array    $attributes        Associative array of table tag attributes
     * @param    int      $tabOffset
     * @param    bool     $useTGroups        Whether to use <thead>, <tfoot> and
     *                                       <tbody> or not
     * @access   public
     */
    function HTML_Table_Storage($attributes = null, $tabOffset = 0, $useTGroups = false)
    {
        HTML_Common::HTML_Common($attributes, (int)$tabOffset);
        $this->_useTGroups = (boolean)$useTGroups;
    }

    /**
     * Sets the useTGroups value
     * @param   boolean   $useTGroups
     * @access  public
     */
    function setUseTGroups($useTGroups)
    {
        $this->_useTGroups = $useTGroups;
    }

    /**
     * Returns the useTGroups value
     * @access   public
     * @return   boolean
     */
    function getUseTGroups()
    {
        return $this->_useTGroups;
    }

    /**
     * Sets the autoFill value
     * @param   mixed   $fill
     * @access  public
     */
    function setAutoFill($fill)
    {
        $this->_autoFill = $fill;
    }

    /**
     * Returns the autoFill value
     * @access   public
     * @return   mixed
     */
    function getAutoFill()
    {
        return $this->_autoFill;
    }

    /**
     * Sets the autoGrow value
     * @param    bool   $fill
     * @access   public
     */
    function setAutoGrow($grow)
    {
        $this->_autoGrow = $grow;
    }

    /**
     * Returns the autoGrow value
     * @access   public
     * @return   mixed
     */
    function getAutoGrow()
    {
        return $this->_autoGrow;
    }

    /**
     * Sets the number of rows in the table
     * @param    int     $rows
     * @access   public
     */
    function setRowCount($rows)
    {
        $this->_rows = $rows;
    }

    /**
     * Sets the number of columns in the table
     * @param    int     $cols
     * @access   public
     */
    function setColCount($cols)
    {
        $this->_cols = $cols;
    }

    /**
     * Returns the number of rows in the table
     * @access   public
     * @return   int
     */
    function getRowCount()
    {
        return $this->_rows;
    }

    /**
     * Gets the number of columns in the table
     *
     * If a row index is specified, the count will not take
     * the spanned cells into account in the return value.
     *
     * @param    int    Row index to serve for cols count
     * @access   public
     * @return   int
     */
    function getColCount($row = null)
    {
        if (!is_null($row)) {
            $count = 0;
            foreach ($this->_structure[$row] as $cell) {
                if (is_array($cell)) {
                    $count++;
                }
            }
            return $count;
        }
        return $this->_cols;
    }

    /**
     * Sets a rows type 'TH' or 'TD'
     * @param    int         $row    Row index
     * @param    string      $type   'TH' or 'TD'
     * @access   public
     */

    function setRowType($row, $type)
    {
        for ($counter = 0; $counter < $this->_cols; $counter++) {
            $this->_structure[$row][$counter]['type'] = $type;
        }
    }

    /**
     * Sets a columns type 'TH' or 'TD'
     * @param    int         $col    Column index
     * @param    string      $type   'TH' or 'TD'
     * @access   public
     */
    function setColType($col, $type)
    {
        for ($counter = 0; $counter < $this->_rows; $counter++) {
            $this->_structure[$counter][$col]['type'] = $type;
        }
    }

    /**
     * Sets the cell attributes for an existing cell.
     *
     * If the given indices do not exist and autoGrow is true then the given
     * row and/or col is automatically added.  If autoGrow is false then an
     * error is returned.
     * @param    int        $row         Row index
     * @param    int        $col         Column index
     * @param    mixed      $attributes  Associative array or string of table row attributes
     * @access   public
     * @throws   PEAR_Error
     */
    function setCellAttributes($row, $col, $attributes)
    {
        if (isset($this->_structure[$row][$col]) && $this->_structure[$row][$col] == '__SPANNED__') return;
        $attributes = $this->_parseAttributes($attributes);
        $err = $this->_adjustEnds($row, $col, 'setCellAttributes', $attributes);
        if (PEAR::isError($err)) {
            return $err;
        }
        $this->_structure[$row][$col]['attr'] = $attributes;
        $this->_updateSpanGrid($row, $col);
    }

    /**
     * Updates the cell attributes passed but leaves other existing attributes in tact
     * @param    int     $row         Row index
     * @param    int     $col         Column index
     * @param    mixed   $attributes  Associative array or string of table row attributes
     * @access   public
     */
    function updateCellAttributes($row, $col, $attributes)
    {
        if (isset($this->_structure[$row][$col]) && $this->_structure[$row][$col] == '__SPANNED__') return;
        $attributes = $this->_parseAttributes($attributes);
        $err = $this->_adjustEnds($row, $col, 'updateCellAttributes', $attributes);
        if (PEAR::isError($err)) {
            return $err;
        }
        $this->_updateAttrArray($this->_structure[$row][$col]['attr'], $attributes);
        $this->_updateSpanGrid($row, $col);
    }

    /**
     * Returns the attributes for a given cell
     * @param    int     $row         Row index
     * @param    int     $col         Column index
     * @return   array
     * @access   public
     */
    function getCellAttributes($row, $col)
    {
        if (isset($this->_structure[$row][$col]) && $this->_structure[$row][$col] != '__SPANNED__') {
            return $this->_structure[$row][$col]['attr'];
        } elseif (!isset($this->_structure[$row][$col])) {
            return PEAR::raiseError('Invalid table cell reference[' .
                $row . '][' . $col . '] in HTML_Table::getCellAttributes');
        }
        return;
    }

    /**
     * Sets the cell contents for an existing cell
     *
     * If the given indices do not exist and autoGrow is true then the given
     * row and/or col is automatically added.  If autoGrow is false then an
     * error is returned.
     * @param    int      $row        Row index
     * @param    int      $col        Column index
     * @param    mixed    $contents   May contain html or any object with a toHTML method;
     *                                if it is an array (with strings and/or objects), $col
     *                                will be used as start offset and the array elements
     *                                will be set to this and the following columns in $row
     * @param    string   $type       (optional) Cell type either 'TH' or 'TD'
     * @access   public
     * @throws   PEAR_Error
     */
    function setCellContents($row, $col, $contents, $type = 'TD')
    {
        if (is_array($contents)) {
            foreach ($contents as $singleContent) {
                $ret = $this->_setSingleCellContents($row, $col, $singleContent, $type);
                if (PEAR::isError($ret)) {
                    return $ret;
                }
                $col++;
            }
        } else {
            $ret = $this->_setSingleCellContents($row, $col, $contents, $type);
            if (PEAR::isError($ret)) {
                return $ret;
            }
        }
    }

    /**
     * Sets the cell contents for a single existing cell
     *
     * If the given indices do not exist and autoGrow is true then the given
     * row and/or col is automatically added.  If autoGrow is false then an
     * error is returned.
     * @param    int      $row        Row index
     * @param    int      $col        Column index
     * @param    mixed    $contents   May contain html or any object with a toHTML method;
     *                                if it is an array (with strings and/or objects), $col
     *                                will be used as start offset and the array elements
     *                                will be set to this and the following columns in $row
     * @param    string   $type       (optional) Cell type either 'TH' or 'TD'
     * @access   private
     * @throws   PEAR_Error
     */
    function _setSingleCellContents($row, $col, $contents, $type = 'TD')
    {
        if (isset($this->_structure[$row][$col]) && $this->_structure[$row][$col] == '__SPANNED__') return;
        $err = $this->_adjustEnds($row, $col, 'setCellContents');
        if (PEAR::isError($err)) {
            return $err;
        }
        $this->_structure[$row][$col]['contents'] = $contents;
        $this->_structure[$row][$col]['type'] = $type;
    }

    /**
     * Returns the cell contents for an existing cell
     * @param    int        $row    Row index
     * @param    int        $col    Column index
     * @access   public
     * @return   mixed
     */
    function getCellContents($row, $col)
    {
        if (isset($this->_structure[$row][$col]) && $this->_structure[$row][$col] == '__SPANNED__') return;
        if (!isset($this->_structure[$row][$col])) {
            return PEAR::raiseError('Invalid table cell reference[' .
                $row . '][' . $col . '] in HTML_Table::getCellContents');
        }
        return $this->_structure[$row][$col]['contents'];
    }

    /**
     * Sets the contents of a header cell
     * @param    int     $row
     * @param    int     $col