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- <?php
-
- include_once('BCGParseException.php');
- include_once('BCGBarcode1D.php');
-
- class BCGcode11 extends BCGBarcode1D {
-
-
- public function __construct() {
- parent::__construct();
-
- $this->keys = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '-');
- $this->code = array(
- '000010',
- '100010',
- '010010',
- '110000',
- '001010',
- '101000',
- '011000',
- '000110',
- '100100',
- '100000',
- '001000'
- );
- }
-
-
-
- public function draw($im) {
-
- $this->drawChar($im, '001100', true);
-
-
- $c = strlen($this->text);
- for ($i = 0; $i < $c; $i++) {
- $this->drawChar($im, $this->findCode($this->text[$i]), true);
- }
-
-
- $this->calculateChecksum();
- $c = count($this->checksumValue);
- for ($i = 0; $i < $c; $i++) {
- $this->drawChar($im, $this->code[$this->checksumValue[$i]], true);
- }
-
-
- $this->drawChar($im, '00110', true);
- $this->drawText($im, 0, 0, $this->positionX, $this->thickness);
- }
-
-
-
- public function getDimension($w, $h) {
- $startlength = 8;
-
- $textlength = 0;
- $c = strlen($this->text);
- for ($i = 0; $i < $c; $i++) {
- $textlength += $this->getIndexLength($this->findIndex($this->text[$i]));
- }
-
- $checksumlength = 0;
- $this->calculateChecksum();
- $c = count($this->checksumValue);
- for ($i = 0; $i < $c; $i++) {
- $checksumlength += $this->getIndexLength($this->checksumValue[$i]);
- }
-
- $endlength = 7;
-
- $w += $startlength + $textlength + $checksumlength + $endlength;
- $h += $this->thickness;
-
- return parent::getDimension($w, $h);
- }
-
-
-
- protected function validate() {
- $c = strlen($this->text);
- if ($c === 0) {
- throw new BCGParseException('code11', 'No data has been entered.');
- }
-
-
- for ($i = 0; $i < $c; $i++) {
- if (array_search($this->text[$i], $this->keys) === false) {
- throw new BCGParseException('code11', 'The character \'' . $this->text[$i] . '\' is not allowed.');
- }
- }
-
- parent::validate();
- }
-
-
-
- protected function calculateChecksum() {
-
-
-
-
-
-
-
-
-
-
- $sequence_multiplier = array(10, 9);
- $temp_text = $this->text;
- $this->checksumValue = array();
- for ($z = 0; $z < 2; $z++) {
- $c = strlen($temp_text);
-
-
- if ($c <= 10 && $z === 1) {
- break;
- }
-
- $checksum = 0;
- for ($i = $c, $j = 0; $i > 0; $i--, $j++) {
- $multiplier = $i % $sequence_multiplier[$z];
- if ($multiplier === 0) {
- $multiplier = $sequence_multiplier[$z];
- }
-
- $checksum += $this->findIndex($temp_text[$j]) * $multiplier;
- }
-
- $this->checksumValue[$z] = $checksum % 11;
- $temp_text .= $this->keys[$this->checksumValue[$z]];
- }
- }
-
-
-
- protected function processChecksum() {
- if ($this->checksumValue === false) {
- $this->calculateChecksum();
- }
-
- if ($this->checksumValue !== false) {
- $ret = '';
- $c = count($this->checksumValue);
- for ($i = 0; $i < $c; $i++) {
- $ret .= $this->keys[$this->checksumValue[$i]];
- }
-
- return $ret;
- }
-
- return false;
- }
-
- private function getIndexLength($index) {
- $length = 0;
- if ($index !== false) {
- $length += 6;
- $length += substr_count($this->code[$index], '1');
- }
-
- return $length;
- }
- }
- ?>
|