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- <?php
-
- include_once('BCGParseException.php');
- include_once('BCGBarcode1D.php');
-
- class BCGi25 extends BCGBarcode1D {
- private $checksum;
- private $ratio;
-
-
-
- public function __construct() {
- parent::__construct();
-
- $this->keys = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9');
- $this->code = array(
- '00110',
- '10001',
- '01001',
- '11000',
- '00101',
- '10100',
- '01100',
- '00011',
- '10010',
- '01010'
- );
-
- $this->setChecksum(false);
- $this->setRatio(2);
- }
-
-
-
- public function setChecksum($checksum) {
- $this->checksum = (bool)$checksum;
- }
-
-
-
- public function setRatio($ratio) {
- $this->ratio = $ratio;
- }
-
-
-
- public function draw($im) {
- $temp_text = $this->text;
-
-
- if ($this->checksum === true) {
- $this->calculateChecksum();
- $temp_text .= $this->keys[$this->checksumValue];
- }
-
-
- $this->drawChar($im, '0000', true);
-
-
- $c = strlen($temp_text);
- for ($i = 0; $i < $c; $i += 2) {
- $temp_bar = '';
- $c2 = strlen($this->findCode($temp_text[$i]));
- for ($j = 0; $j < $c2; $j++) {
- $temp_bar .= substr($this->findCode($temp_text[$i]), $j, 1);
- $temp_bar .= substr($this->findCode($temp_text[$i + 1]), $j, 1);
- }
-
- $this->drawChar($im, $this->changeBars($temp_bar), true);
- }
-
-
- $this->drawChar($im, $this->changeBars('100'), true);
- $this->drawText($im, 0, 0, $this->positionX, $this->thickness);
- }
-
-
-
- public function getDimension($w, $h) {
- $textlength = (3 + ($this->ratio + 1) * 2) * strlen($this->text);
- $startlength = 4;
- $checksumlength = 0;
- if ($this->checksum === true) {
- $checksumlength = (3 + ($this->ratio + 1) * 2);
- }
-
- $endlength = 2 + ($this->ratio + 1);
-
- $w += $startlength + $textlength + $checksumlength + $endlength;
- $h += $this->thickness;
- return parent::getDimension($w, $h);
- }
-
-
-
- protected function validate() {
- $c = strlen($this->text);
- if ($c === 0) {
- throw new BCGParseException('i25', 'No data has been entered.');
- }
-
-
- for ($i = 0; $i < $c; $i++) {
- if (array_search($this->text[$i], $this->keys) === false) {
- throw new BCGParseException('i25', 'The character \'' . $this->text[$i] . '\' is not allowed.');
- }
- }
-
-
- if ($c % 2 !== 0 && $this->checksum === false) {
- throw new BCGParseException('i25', 'i25 must contain an even amount of digits if checksum is false.');
- } elseif ($c % 2 === 0 && $this->checksum === true) {
- throw new BCGParseException('i25', 'i25 must contain an odd amount of digits if checksum is true.');
- }
-
- parent::validate();
- }
-
-
-
- protected function calculateChecksum() {
-
-
-
-
-
-
- $even = true;
- $this->checksumValue = 0;
- $c = strlen($this->text);
- for ($i = $c; $i > 0; $i--) {
- if ($even === true) {
- $multiplier = 3;
- $even = false;
- } else {
- $multiplier = 1;
- $even = true;
- }
-
- $this->checksumValue += $this->keys[$this->text[$i - 1]] * $multiplier;
- }
-
- $this->checksumValue = (10 - $this->checksumValue % 10) % 10;
- }
-
-
-
- protected function processChecksum() {
- if ($this->checksumValue === false) {
- $this->calculateChecksum();
- }
-
- if ($this->checksumValue !== false) {
- return $this->keys[$this->checksumValue];
- }
-
- return false;
- }
-
-
-
- private function changeBars($in) {
- if ($this->ratio > 1) {
- $c = strlen($in);
- for ($i = 0; $i < $c; $i++) {
- $in[$i] = $in[$i] === '1' ? $this->ratio : $in[$i];
- }
- }
-
- return $in;
- }
- }
- ?>
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