<?php

/**

 * Zend Framework

 *

 * LICENSE

 *

 * This source file is subject to the new BSD license that is bundled

 * with this package in the file LICENSE.txt.

 * It is also available through the world-wide-web at this URL:

 * http://framework.zend.com/license/new-bsd

 * If you did not receive a copy of the license and are unable to

 * obtain it through the world-wide-web, please send an email

 * to license@zend.com so we can send you a copy immediately.

 *

 * @category  Zend

 * @package   Zend_Text_Table

 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)

 * @license   http://framework.zend.com/license/new-bsd     New BSD License

 * @version   $Id: Column.php 23775 2011-03-01 17:25:24Z ralph $

 */



/**

 * @see Zend_Text_Table

 */

require_once 'Zend/Text/Table.php';



/**

 * @see Zend_Text_MultiByte

 */

require_once 'Zend/Text/MultiByte.php';



/**

 * Column class for Zend_Text_Table_Row

 *

 * @category  Zend

 * @package   Zend_Text_Table

 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)

 * @license   http://framework.zend.com/license/new-bsd     New BSD License

 */

class Zend_Text_Table_Column

{

    /**

     * Aligns for columns

     */

    const ALIGN_LEFT   = 'left';

    const ALIGN_CENTER = 'center';

    const ALIGN_RIGHT  = 'right';



    /**

     * Content of the column

     *

     * @var string

     */

    protected $_content = '';



    /**

     * Align of the column

     *

     * @var string

     */

    protected $_align = self::ALIGN_LEFT;



    /**

     * Colspan of the column

     *

     * @var integer

     */

    protected $_colSpan = 1;



    /**

     * Allowed align parameters

     *

     * @var array

     */

    protected $_allowedAligns = array(self::ALIGN_LEFT, self::ALIGN_CENTER, self::ALIGN_RIGHT);



    /**

     * Create a column for a Zend_Text_Table_Row object.

     *

     * @param string  $content  The content of the column

     * @param string  $align    The align of the content

     * @param integer $colSpan  The colspan of the column

     * @param string  $charset  The encoding of the content

     */

    public function __construct($content = null, $align = null, $colSpan = null, $charset = null)

    {

        if ($content !== null) {

            $this->setContent($content, $charset);

        }



        if ($align !== null) {

            $this->setAlign($align);

        }



        if ($colSpan !== null) {

            $this->setColSpan($colSpan);

        }

    }



    /**

     * Set the content.

     *

     * If $charset is not defined, it is assumed that $content is encoded in

     * the charset defined via Zend_Text_Table::setInputCharset() (defaults

     * to utf-8).

     *

     * @param  string $content  Content of the column

     * @param  string $charset  The charset of the content

     * @throws Zend_Text_Table_Exception When $content is not a string

     * @return Zend_Text_Table_Column

     */

    public function setContent($content, $charset = null)

    {

        if (is_string($content) === false) {

            require_once 'Zend/Text/Table/Exception.php';

            throw new Zend_Text_Table_Exception('$content must be a string');

        }



        if ($charset === null) {

            $inputCharset = Zend_Text_Table::getInputCharset();

        } else {

            $inputCharset = strtolower($charset);

        }



        $outputCharset = Zend_Text_Table::getOutputCharset();



        if ($inputCharset !== $outputCharset) {

            if (PHP_OS !== 'AIX') {

                // AIX does not understand these character sets

                $content = iconv($inputCharset, $outputCharset, $content);

            }



        }



        $this->_content = $content;



        return $this;

    }



    /**

     * Set the align

     *

     * @param  string $align Align of the column

     * @throws Zend_Text_Table_Exception When supplied align is invalid

     * @return Zend_Text_Table_Column

     */

    public function setAlign($align)

    {

        if (in_array($align, $this->_allowedAligns) === false) {

            require_once 'Zend/Text/Table/Exception.php';

            throw new Zend_Text_Table_Exception('Invalid align supplied');

        }



        $this->_align = $align;



        return $this;

    }



    /**

     * Set the colspan

     *

     * @param  int $colSpan

     * @throws Zend_Text_Table_Exception When $colSpan is smaller than 1

     * @return Zend_Text_Table_Column

     */

    public function setColSpan($colSpan)

    {

        if (is_int($colSpan) === false or $colSpan < 1) {

            require_once 'Zend/Text/Table/Exception.php';

            throw new Zend_Text_Table_Exception('$colSpan must be an integer and greater than 0');

        }



        $this->_colSpan = $colSpan;



        return $this;

    }



    /**

     * Get the colspan

     *

     * @return integer

     */

    public function getColSpan()

    {

        return $this->_colSpan;

    }



    /**

     * Render the column width the given column width

     *

     * @param  integer $columnWidth The width of the column

     * @param  integer $padding     The padding for the column

     * @throws Zend_Text_Table_Exception When $columnWidth is lower than 1

     * @throws Zend_Text_Table_Exception When padding is greater than columnWidth

     * @return string

     */

    public function render($columnWidth, $padding = 0)

    {

        if (is_int($columnWidth) === false or $columnWidth < 1) {

            require_once 'Zend/Text/Table/Exception.php';

            throw new Zend_Text_Table_Exception('$columnWidth must be an integer and greater than 0');

        }



        $columnWidth -= ($padding * 2);



        if ($columnWidth < 1) {

            require_once 'Zend/Text/Table/Exception.php';

            throw new Zend_Text_Table_Exception('Padding (' . $padding . ') is greater than column width');

        }



        switch ($this->_align) {

            case self::ALIGN_LEFT:

                $padMode = STR_PAD_RIGHT;

                break;



            case self::ALIGN_CENTER:

                $padMode = STR_PAD_BOTH;

                break;



            case self::ALIGN_RIGHT:

                $padMode = STR_PAD_LEFT;

                break;



            default:

                // This can never happen, but the CS tells I have to have it ...

                break;

        }



        $outputCharset = Zend_Text_Table::getOutputCharset();

        $lines         = explode("\n", Zend_Text_MultiByte::wordWrap($this->_content, $columnWidth, "\n", true, $outputCharset));

        $paddedLines   = array();



        foreach ($lines AS $line) {

            $paddedLines[] = str_repeat(' ', $padding)

                           . Zend_Text_MultiByte::strPad($line, $columnWidth, ' ', $padMode, $outputCharset)

                           . str_repeat(' ', $padding);

        }



        $result = implode("\n", $paddedLines);



        return $result;

    }

}