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- <?php
-
- include_once('BCGParseException.php');
- include_once('BCGBarcode1D.php');
- include_once('BCGLabel.php');
-
- class BCGupcext2 extends BCGBarcode1D {
- protected $codeParity = array();
-
-
-
- public function __construct() {
- parent::__construct();
-
- $this->keys = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9');
- $this->code = array(
- '2100',
- '1110',
- '1011',
- '0300',
- '0021',
- '0120',
- '0003',
- '0201',
- '0102',
- '2001'
- );
-
-
- $this->codeParity = array(
- array(0, 0),
- array(0, 1),
- array(1, 0),
- array(1, 1)
- );
- }
-
-
-
- public function draw($im) {
-
- $this->drawChar($im, '001', true);
-
-
- for ($i = 0; $i < 2; $i++) {
- $this->drawChar($im, self::inverse($this->findCode($this->text[$i]), $this->codeParity[intval($this->text) % 4][$i]), false);
- if ($i === 0) {
- $this->drawChar($im, '00', false);
- }
- }
-
- $this->drawText($im, 0, 0, $this->positionX, $this->thickness);
- }
-
-
-
- public function getDimension($w, $h) {
- $startlength = 4;
- $textlength = 2 * 7;
- $intercharlength = 2;
-
- $w += $startlength + $textlength + $intercharlength;
- $h += $this->thickness;
- return parent::getDimension($w, $h);
- }
-
-
-
- protected function addDefaultLabel() {
- parent::addDefaultLabel();
-
- if ($this->defaultLabel !== null) {
- $this->defaultLabel->setPosition(BCGLabel::POSITION_TOP);
- }
- }
-
-
-
- protected function validate() {
- $c = strlen($this->text);
- if ($c === 0) {
- throw new BCGParseException('upcext2', 'No data has been entered.');
- }
-
-
- for ($i = 0; $i < $c; $i++) {
- if (array_search($this->text[$i], $this->keys) === false) {
- throw new BCGParseException('upcext2', 'The character \'' . $this->text[$i] . '\' is not allowed.');
- }
- }
-
-
- if ($c !== 2) {
- throw new BCGParseException('upcext2', 'Must contain 2 digits.');
- }
-
- parent::validate();
- }
-
-
-
- private static function inverse($text, $inverse = 1) {
- if ($inverse === 1) {
- $text = strrev($text);
- }
-
- return $text;
- }
- }
- ?>
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