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Adding UPC-E
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,321 @@ | ||
| <?php | ||
| /* vim: set expandtab tabstop=4 softtabstop=4 shiftwidth=4: */ | ||
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| /** | ||
| * Image_Barcode2_Driver_Upce class | ||
| * | ||
| * Renders UPC-E barcodes | ||
| * | ||
| * PHP versions 5 | ||
| * | ||
| * 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 license@php.net so we can mail you a copy immediately. | ||
| * | ||
| * @category Image | ||
| * @package Image_Barcode2 | ||
| * @author Ryan McLaughlin <ryanmclaughlin@gmail.com> | ||
| * @copyright 2012 The PHP Group | ||
| * @license http://www.php.net/license/3_0.txt PHP License 3.0 | ||
| * @link http://pear.php.net/package/Image_Barcode2 | ||
| */ | ||
|
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| require_once 'Image/Barcode2/Driver.php'; | ||
| require_once 'Image/Barcode2/Common.php'; | ||
| require_once 'Image/Barcode2/Exception.php'; | ||
|
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||
| /** | ||
| * UPC-E | ||
| * | ||
| * Package which provides a method to create UPC-A barcode using GD library. | ||
| * | ||
| * Slightly Modified Upca.php to get Upce.php I needed a way to print | ||
| * UPC-E bar codes on a PHP page. The Image_Barcode2 class seemed like | ||
| * the best way to do it, so I modified UPC-A to print in the UPC-E format. | ||
| * Checked the bar code tables against some documentation below (no errors) | ||
| * and validated the changes with my phone app "Barcode Scanner" | ||
| * | ||
| * @category Image | ||
| * @package Image_Barcode2 | ||
| * @author Ryan McLaughlin <ryanmclaughlin@gmail.com> | ||
| * @copyright 2012 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/Image_Barcode2 | ||
| */ | ||
| class Image_Barcode2_Driver_Upce extends Image_Barcode2_Common implements Image_Barcode2_Driver | ||
| { | ||
| /** | ||
| * Coding map | ||
| * @var array | ||
| */ | ||
| var $_paritypattern = array( | ||
| '0' => array(1,1,1,0,0,0), | ||
| '1' => array(1,1,0,1,0,0), | ||
| '2' => array(1,1,0,0,1,0), | ||
| '3' => array(1,1,0,0,0,1), | ||
| '4' => array(1,0,1,1,0,0), | ||
| '5' => array(1,0,0,1,1,0), | ||
| '6' => array(1,0,0,0,1,1), | ||
| '7' => array(1,0,1,0,1,0), | ||
| '8' => array(1,0,1,0,0,1), | ||
| '9' => array(1,0,0,1,0,1) | ||
| ); | ||
|
|
||
| var $_codingmap = array( | ||
| '0' => array( | ||
| 'O' => array(0,0,0,1,1,0,1), | ||
| 'E' => array(0,1,0,0,1,1,1) | ||
| ), | ||
| '1' => array( | ||
| 'O' => array(0,0,1,1,0,0,1), | ||
| 'E' => array(0,1,1,0,0,1,1) | ||
| ), | ||
| '2' => array( | ||
| 'O' => array(0,0,1,0,0,1,1), | ||
| 'E' => array(0,0,1,1,0,1,1) | ||
| ), | ||
| '3' => array( | ||
| 'O' => array(0,1,1,1,1,0,1), | ||
| 'E' => array(0,1,0,0,0,0,1) | ||
| ), | ||
| '4' => array( | ||
| 'O' => array(0,1,0,0,0,1,1), | ||
| 'E' => array(0,0,1,1,1,0,1) | ||
| ), | ||
| '5' => array( | ||
| 'O' => array(0,1,1,0,0,0,1), | ||
| 'E' => array(0,1,1,1,0,0,1) | ||
| ), | ||
| '6' => array( | ||
| 'O' => array(0,1,0,1,1,1,1), | ||
| 'E' => array(0,0,0,0,1,0,1) | ||
| ), | ||
| '7' => array( | ||
| 'O' => array(0,1,1,1,0,1,1), | ||
| 'E' => array(0,0,1,0,0,0,1) | ||
| ), | ||
| '8' => array( | ||
| 'O' => array(0,1,1,0,1,1,1), | ||
| 'E' => array(0,0,0,1,0,0,1) | ||
| ), | ||
| '9' => array( | ||
| 'O' => array(0,0,0,1,0,1,1), | ||
| 'E' => array(0,0,1,0,1,1,1) | ||
| ) | ||
| ); | ||
|
|
||
| /** | ||
| * Class constructor | ||
| * | ||
| * @param Image_Barcode2_Writer $writer Library to use. | ||
| */ | ||
| public function __construct(Image_Barcode2_Writer $writer) | ||
| { | ||
| parent::__construct($writer); | ||
| $this->setBarcodeHeight(50); | ||
| $this->setBarcodeWidth(1); | ||
| } | ||
|
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|
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| /** | ||
| * Validate barcode | ||
| * | ||
| * @return void | ||
| * @throws Image_Barcode2_Exception | ||
| */ | ||
| public function validate() | ||
| { | ||
| // Check barcode for invalid characters | ||
| if (!preg_match('/^[0-9]{8}$/', $this->getBarcode())) { | ||
| throw new Image_Barcode2_Exception('Invalid barcode'); | ||
| } | ||
| } | ||
|
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|
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| /** | ||
| * Draws a UPC-E image barcode | ||
| * | ||
| * @return resource The corresponding UPC-E image barcode | ||
| * | ||
| * @author Ryan McLaughlin <ryanmclaughlin@gmail.com> | ||
| */ | ||
| public function draw() | ||
| { | ||
| $text = $this->getBarcode(); | ||
| $writer = $this->getWriter(); | ||
| $fontsize = $this->getFontSize(); | ||
|
|
||
| // Calculate the barcode width | ||
| $barcodewidth = (strlen($text)) * (7 * $this->getBarcodeWidth()) | ||
| + $writer->imagefontwidth($fontsize) | ||
| + $writer->imagefontwidth($fontsize) // check digit padding | ||
| ; | ||
|
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|
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| $barcodelongheight = (int)($writer->imagefontheight($fontsize) / 2) | ||
| + $this->getBarcodeHeight(); | ||
|
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| // Create the image | ||
| $img = $writer->imagecreate( | ||
| $barcodewidth, | ||
| $barcodelongheight + $writer->imagefontheight($fontsize) + 1 | ||
| ); | ||
|
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||
| // Alocate the black and white colors | ||
| $black = $writer->imagecolorallocate($img, 0, 0, 0); | ||
| $white = $writer->imagecolorallocate($img, 255, 255, 255); | ||
|
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| // Fill image with white color | ||
| $writer->imagefill($img, 0, 0, $white); | ||
|
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| // get the first digit which is the key for creating the first 6 bars | ||
| $key = substr($text, 0, 1); | ||
|
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| // Initiate x position | ||
| $xpos = 0; | ||
|
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| // print first digit | ||
| $writer->imagestring( | ||
| $img, | ||
| $fontsize, | ||
| $xpos, | ||
| $this->getBarcodeHeight(), | ||
| $key, | ||
| $black | ||
| ); | ||
| $xpos = $writer->imagefontwidth($fontsize) + 1; | ||
|
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|
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| // Draws the left guard pattern (bar-space-bar) | ||
| // bar | ||
| $writer->imagefilledrectangle( | ||
| $img, | ||
| $xpos, | ||
| 0, | ||
| $xpos + $this->getBarcodeWidth() - 1, | ||
| $barcodelongheight, | ||
| $black | ||
| ); | ||
|
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| $xpos += $this->getBarcodeWidth(); | ||
| // space | ||
| $xpos += $this->getBarcodeWidth(); | ||
| // bar | ||
| $writer->imagefilledrectangle( | ||
| $img, | ||
| $xpos, | ||
| 0, | ||
| $xpos + $this->getBarcodeWidth() - 1, | ||
| $barcodelongheight, | ||
| $black | ||
| ); | ||
|
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| $xpos += $this->getBarcodeWidth(); | ||
|
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|
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| // Draw middle $text contents | ||
| $checkdigit = substr($text, 7, 1); | ||
| for ($idx = 1; $idx < 7; $idx ++) { | ||
| $value = substr($text, $idx, 1); | ||
| $writer->imagestring( | ||
| $img, | ||
| $fontsize, | ||
| $xpos + 1, | ||
| $this->getBarcodeHeight(), | ||
| $value, | ||
| $black | ||
| ); | ||
|
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| if ($this->_paritypattern[$checkdigit][$idx-1] == 1) { | ||
| foreach ($this->_codingmap[$value]['E'] as $bar) { | ||
| if ($bar) { | ||
| $writer->imagefilledrectangle( | ||
| $img, | ||
| $xpos, | ||
| 0, | ||
| $xpos + $this->getBarcodeWidth() - 1, | ||
| $this->getBarcodeHeight(), | ||
| $black | ||
| ); | ||
| } | ||
| $xpos += $this->getBarcodeWidth(); | ||
| } | ||
| } else { | ||
| foreach ($this->_codingmap[$value]['O'] as $bar) { | ||
| if ($bar) { | ||
| $writer->imagefilledrectangle( | ||
| $img, | ||
| $xpos, | ||
| 0, | ||
| $xpos + $this->getBarcodeWidth() - 1, | ||
| $this->getBarcodeHeight(), | ||
| $black | ||
| ); | ||
| } | ||
| $xpos += $this->getBarcodeWidth(); | ||
| } | ||
| } | ||
| } | ||
|
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||
| // space | ||
| $xpos += $this->getBarcodeWidth(); | ||
|
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||
| // Draws the right guard pattern (bar-space-bar-space-bar) | ||
| // bar | ||
| $writer->imagefilledrectangle( | ||
| $img, | ||
| $xpos, | ||
| 0, | ||
| $xpos + $this->getBarcodeWidth() - 1, | ||
| $barcodelongheight, | ||
| $black | ||
| ); | ||
|
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||
| $xpos += $this->getBarcodeWidth(); | ||
| // space | ||
| $xpos += $this->getBarcodeWidth(); | ||
| // bar | ||
| $writer->imagefilledrectangle( | ||
| $img, | ||
| $xpos, | ||
| 0, | ||
| $xpos + $this->getBarcodeWidth() - 1, | ||
| $barcodelongheight, | ||
| $black | ||
| ); | ||
|
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| $xpos += $this->getBarcodeWidth(); | ||
| // space | ||
| $xpos += $this->getBarcodeWidth(); | ||
| // bar | ||
| $writer->imagefilledrectangle( | ||
| $img, | ||
| $xpos, | ||
| 0, | ||
| $xpos + $this->getBarcodeWidth() - 1, | ||
| $barcodelongheight, | ||
| $black | ||
| ); | ||
|
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| $xpos += $this->getBarcodeWidth(); | ||
|
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|
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| // Print Check Digit | ||
| $writer->imagestring( | ||
| $img, | ||
| $fontsize, | ||
| $xpos + 1, | ||
| $this->getBarcodeHeight(), | ||
| $checkdigit, | ||
| $black | ||
| ); | ||
|
|
||
| return $img; | ||
| } | ||
|
|
||
| } // class | ||
|
|
||
| ?> |
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