124 lines
3.9 KiB
PHP
124 lines
3.9 KiB
PHP
<?php
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/**
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*--------------------------------------------------------------------
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*
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* Sub-Class - Codabar
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*
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*--------------------------------------------------------------------
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* @author Akhtar Khan <er.akhtarkhan@gmail.com>
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* @link http://www.codeitnow.in
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* @package https://github.com/codeitnowin/barcode-generator
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*/
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namespace CodeItNow\BarcodeBundle\Generator;
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use CodeItNow\BarcodeBundle\Generator\CINParseException;
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use CodeItNow\BarcodeBundle\Generator\CINBarcode1D;
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class CINcodabar extends CINBarcode1D {
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/**
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* Constructor.
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*/
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public function __construct() {
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parent::__construct();
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$this->keys = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '-', '$', ':', '/', '.', '+', 'A', 'B', 'C', 'D');
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$this->code = array( // 0 added to add an extra space
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'00000110', /* 0 */
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'00001100', /* 1 */
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'00010010', /* 2 */
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'11000000', /* 3 */
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'00100100', /* 4 */
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'10000100', /* 5 */
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'01000010', /* 6 */
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'01001000', /* 7 */
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'01100000', /* 8 */
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'10010000', /* 9 */
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'00011000', /* - */
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'00110000', /* $ */
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'10001010', /* : */
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'10100010', /* / */
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'10101000', /* . */
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'00111110', /* + */
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'00110100', /* A */
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'01010010', /* B */
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'00010110', /* C */
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'00011100' /* D */
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);
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}
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/**
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* Parses the text before displaying it.
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*
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* @param mixed $text
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*/
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public function parse($text) {
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parent::parse(strtoupper($text)); // Only Capital Letters are Allowed
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}
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/**
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* Draws the barcode.
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*
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* @param resource $im
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*/
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public function draw($im) {
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$c = strlen($this->text);
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for ($i = 0; $i < $c; $i++) {
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$this->drawChar($im, $this->findCode($this->text[$i]), true);
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}
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$this->drawText($im, 0, 0, $this->positionX, $this->thickness);
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}
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/**
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* Returns the maximal size of a barcode.
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*
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* @param int $w
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* @param int $h
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* @return int[]
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*/
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public function getDimension($w, $h) {
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$textLength = 0;
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$c = strlen($this->text);
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for ($i = 0; $i < $c; $i++) {
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$index = $this->findIndex($this->text[$i]);
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if ($index !== false) {
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$textLength += 8;
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$textLength += substr_count($this->code[$index], '1');
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}
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}
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$w += $textLength;
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$h += $this->thickness;
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return parent::getDimension($w, $h);
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}
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/**
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* Validates the input.
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*/
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protected function validate() {
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$c = strlen($this->text);
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if ($c === 0) {
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throw new CINParseException('codabar', 'No data has been entered.');
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}
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// Checking if all chars are allowed
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for ($i = 0; $i < $c; $i++) {
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if (array_search($this->text[$i], $this->keys) === false) {
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throw new CINParseException('codabar', 'The character \'' . $this->text[$i] . '\' is not allowed.');
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}
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}
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// Must start by A, B, C or D
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if ($c == 0 || ($this->text[0] !== 'A' && $this->text[0] !== 'B' && $this->text[0] !== 'C' && $this->text[0] !== 'D')) {
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throw new CINParseException('codabar', 'The text must start by the character A, B, C, or D.');
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}
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// Must end by A, B, C or D
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$c2 = $c - 1;
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if ($c2 === 0 || ($this->text[$c2] !== 'A' && $this->text[$c2] !== 'B' && $this->text[$c2] !== 'C' && $this->text[$c2] !== 'D')) {
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throw new CINParseException('codabar', 'The text must end by the character A, B, C, or D.');
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}
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parent::validate();
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}
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}
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?>
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