forked from miraty/libreqr
140 lines
4.0 KiB
PHP
140 lines
4.0 KiB
PHP
<?php
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/**
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*--------------------------------------------------------------------
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*
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* Sub-Class - PostNet
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*
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* A postnet is composed of either 5, 9 or 11 digits used by US postal service.
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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 CINpostnet 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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$this->keys = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9');
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$this->code = array(
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'11000', /* 0 */
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'00011', /* 1 */
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'00101', /* 2 */
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'00110', /* 3 */
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'01001', /* 4 */
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'01010', /* 5 */
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'01100', /* 6 */
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'10001', /* 7 */
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'10010', /* 8 */
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'10100' /* 9 */
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);
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$this->setThickness(9);
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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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// Checksum
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$checksum = 0;
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$c = strlen($this->text);
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for ($i = 0; $i < $c; $i++) {
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$checksum += intval($this->text[$i]);
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}
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$checksum = 10 - ($checksum % 10);
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// Starting Code
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$this->drawChar($im, '1');
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// Code
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for ($i = 0; $i < $c; $i++) {
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$this->drawChar($im, $this->findCode($this->text[$i]));
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}
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// Checksum
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$this->drawChar($im, $this->findCode($checksum));
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// Ending Code
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$this->drawChar($im, '1');
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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, $h) {
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$c = strlen($this->text);
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$startlength = 3;
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$textlength = $c * 5 * 3;
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$checksumlength = 5 * 3;
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$endlength = 3;
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// We remove the white on the right
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$removelength = -1.56;
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$w += $startlength + $textlength + $checksumlength + $endlength + $removelength;
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$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('postnet', '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('postnet', 'The character \'' . $this->text[$i] . '\' is not allowed.');
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}
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}
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// Must contain 5, 9 or 11 chars
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if ($c !== 5 && $c !== 9 && $c !== 11) {
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throw new CINParseException('postnet', 'Must contain 5, 9, or 11 characters.');
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}
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parent::validate();
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}
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/**
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* Overloaded method for drawing special barcode.
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*
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* @param resource $im
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* @param string $code
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* @param boolean $startBar
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*/
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protected function drawChar($im, $code, $startBar = true) {
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$c = strlen($code);
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for ($i = 0; $i < $c; $i++) {
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if ($code[$i] === '0') {
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$posY = $this->thickness - ($this->thickness / 2.5);
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} else {
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$posY = 0;
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}
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$this->drawFilledRectangle($im, $this->positionX, $posY, $this->positionX + 0.44, $this->thickness - 1, CINBarcode::COLOR_FG);
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$this->positionX += 3;
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}
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}
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}
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?>
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