<?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_Barcode

 * @subpackage Object

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

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

 * @version    $Id: Upce.php 21667 2010-03-28 17:45:14Z mikaelkael $

 */

/**

 * @see Zend_Barcode_Object_Ean13

 */

require_once 'Zend/Barcode/Object/Ean13.php';

/**

 * @see Zend_Validate_Barcode

 */

require_once 'Zend/Validate/Barcode.php';

/**

 * Class for generate UpcA barcode

 *

 * @category   Zend

 * @package    Zend_Barcode

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

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

 */

class Zend_Barcode_Object_Upce extends Zend_Barcode_Object_Ean13

{

    protected $_parities = array(

        0 => array(

            0 => array('B','B','B','A','A','A'),

            1 => array('B','B','A','B','A','A'),

            2 => array('B','B','A','A','B','A'),

            3 => array('B','B','A','A','A','B'),

            4 => array('B','A','B','B','A','A'),

            5 => array('B','A','A','B','B','A'),

            6 => array('B','A','A','A','B','B'),

            7 => array('B','A','B','A','B','A'),

            8 => array('B','A','B','A','A','B'),

            9 => array('B','A','A','B','A','B')),

        1 => array(

            0 => array('A','A','A','B','B','B'),

            1 => array('A','A','B','A','B','B'),

            2 => array('A','A','B','B','A','B'),

            3 => array('A','A','B','B','B','A'),

            4 => array('A','B','A','A','B','B'),

            5 => array('A','B','B','A','A','B'),

            6 => array('A','B','B','B','A','A'),

            7 => array('A','B','A','B','A','B'),

            8 => array('A','B','A','B','B','A'),

            9 => array('A','B','B','A','B','A'))

    );

    /**

     * Default options for Postnet barcode

     * @return void

     */

    protected function _getDefaultOptions()

    {

        $this->_barcodeLength = 8;

        $this->_mandatoryChecksum = true;

        $this->_mandatoryQuietZones = true;

    }

    /**

     * Retrieve text to encode

     * @return string

     */

    public function getText()

    {

        $text = parent::getText();

        if ($text{0} != 1) {

            $text{0} = 0;

        }

        return $text;

    }

    /**

     * Width of the barcode (in pixels)

     * @return integer

     */

    protected function _calculateBarcodeWidth()

    {

        $quietZone       = $this->getQuietZone();

        $startCharacter  = (3 * $this->_barThinWidth) * $this->_factor;

        $stopCharacter   = (6 * $this->_barThinWidth) * $this->_factor;

        $encodedData     = (7 * $this->_barThinWidth) * $this->_factor * 6;

        return $quietZone + $startCharacter + $encodedData + $stopCharacter + $quietZone;

    }

    /**

     * Prepare array to draw barcode

     * @return array

     */

    protected function _prepareBarcode()

    {

        $barcodeTable = array();

        $height = ($this->_drawText) ? 1.1 : 1;

        // Start character (101)

        $barcodeTable[] = array(1 , $this->_barThinWidth , 0 , $height);

        $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , $height);

        $barcodeTable[] = array(1 , $this->_barThinWidth , 0 , $height);

        $textTable = str_split($this->getText());

        $system = 0;

        if ($textTable[0] == 1) {

            $system = 1;

        }

        $checksum = $textTable[7];

        $parity = $this->_parities[$system][$checksum];

        for ($i = 1; $i < 7; $i++) {

            $bars = str_split($this->_codingMap[$parity[$i - 1]][$textTable[$i]]);

            foreach ($bars as $b) {

                $barcodeTable[] = array($b , $this->_barThinWidth , 0 , 1);

            }

        }

        // Stop character (10101)

        $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , $height);

        $barcodeTable[] = array(1 , $this->_barThinWidth , 0 , $height);

        $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , $height);

        $barcodeTable[] = array(1 , $this->_barThinWidth , 0 , $height);

        $barcodeTable[] = array(0 , $this->_barThinWidth , 0 , $height);

        $barcodeTable[] = array(1 , $this->_barThinWidth , 0 , $height);

        return $barcodeTable;

    }

    /**

     * Partial function to draw text

     * @return void

     */

    protected function _drawText()

    {

        if ($this->_drawText) {

            $text = $this->getTextToDisplay();

            $characterWidth = (7 * $this->_barThinWidth) * $this->_factor;

            $leftPosition = $this->getQuietZone() - $characterWidth;

            for ($i = 0; $i < $this->_barcodeLength; $i ++) {

                $fontSize = $this->_fontSize;

                if ($i == 0 || $i == 7) {

                    $fontSize *= 0.8;

                }

                $this->_addText(

                    $text{$i},

                    $fontSize * $this->_factor,

                    $this->_rotate(

                        $leftPosition,

                        (int) $this->_withBorder * 2

                            + $this->_factor * ($this->_barHeight + $fontSize) + 1

                    ),

                    $this->_font,

                    $this->_foreColor,

                    'left',

                    - $this->_orientation

                );

                switch ($i) {

                    case 0:

                        $factor = 3;

                        break;

                    case 6:

                        $factor = 5;

                        break;

                    default:

                        $factor = 0;

                }

                $leftPosition = $leftPosition + $characterWidth + ($factor * $this->_barThinWidth * $this->_factor);

            }

        }

    }

    /**

     * Particular validation for Upce barcode objects

     * (to suppress checksum character substitution)

     * @param string $value

     * @param array  $options

     */

    protected function _validateText($value, $options = array())

    {

        $validator = new Zend_Validate_Barcode(array(

            'adapter'  => 'upce',

            'checksum' => false,

        ));

        $value = $this->_addLeadingZeros($value, true);

        if (!$validator->isValid($value)) {

            $message = implode("\n", $validator->getMessages());

            /**

             * @see Zend_Barcode_Object_Exception

             */

            require_once 'Zend/Barcode/Object/Exception.php';

            throw new Zend_Barcode_Object_Exception($message);

        }

    }

    /**

     * Get barcode checksum

     *

     * @param  string $text

     * @return int

     */

    public function getChecksum($text)

    {

        $text = $this->_addLeadingZeros($text, true);

        if ($text{0} != 1) {

            $text{0} = 0;

        }

        return parent::getChecksum($text);

    }

}