1. Import
This commit is contained in:
45
html/include/barcode/class/drawer/BCGDraw.php
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45
html/include/barcode/class/drawer/BCGDraw.php
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<?php
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/**
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* BCGDraw.php
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*--------------------------------------------------------------------
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*
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* Base class to draw images
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*
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*--------------------------------------------------------------------
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* Revision History
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* v2.1.0 8 nov 2009 Jean-Sébastien Goupil
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*--------------------------------------------------------------------
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* $Id: BCGDraw.php,v 1.1 2009/11/09 04:15:10 jsgoupil Exp $
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* PHP5-Revision: 1.1
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*--------------------------------------------------------------------
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* Copyright (C) Jean-Sebastien Goupil
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* http://www.barcodephp.com
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*/
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class BCGDraw { // abstract
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var $im;
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var $filename;
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/**
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* Constructor
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*
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* @param resource $im
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*/
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function BCGDraw(&$im) {
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$this->im = $im;
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}
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/**
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* Sets the filename
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*
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* @param string $filename
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*/
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function setFilename($filename) {
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$this->filename = $filename;
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}
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/**
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* Method needed to draw the image based on its specification (JPG, GIF, etc.)
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*/
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function draw() {} // abstract public
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}
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?>
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109
html/include/barcode/class/drawer/BCGDrawJPG.php
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109
html/include/barcode/class/drawer/BCGDrawJPG.php
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<?php
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/**
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* BCGDrawJPG.php
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*--------------------------------------------------------------------
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*
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* Image Class to draw JPG images with possibility to set DPI
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*
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*--------------------------------------------------------------------
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* Revision History
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* v2.1.0 8 nov 2009 Jean-Sébastien Goupil
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*--------------------------------------------------------------------
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* $Id: BCGDrawJPG.php,v 1.1 2009/11/09 04:15:10 jsgoupil Exp $
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* PHP5-Revision: 1.1
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*--------------------------------------------------------------------
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* Copyright (C) Jean-Sebastien Goupil
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* http://www.barcodephp.com
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*/
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include_once('BCGDraw.php');
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if (!function_exists('file_put_contents')) {
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function file_put_contents($filename, $data) {
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$f = @fopen($filename, 'w');
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if (!$f) {
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return false;
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} else {
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$bytes = fwrite($f, $data);
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fclose($f);
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return $bytes;
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}
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}
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}
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class BCGDrawJPG extends BCGDraw {
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var $dpi;
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var $quality;
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/**
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* Constructor
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*
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* @param resource $im
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*/
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function BCGDrawJPG(&$im) {
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BCGDraw::BCGDraw($im);
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}
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/**
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* Sets the DPI
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*
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* @param int $dpi
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*/
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function setDPI($dpi) {
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if(is_int($dpi)) {
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$this->dpi = max(1, $dpi);
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} else {
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$this->dpi = null;
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}
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}
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/**
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* Sets the quality of the JPG
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*
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* @param int $quality
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*/
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function setQuality($quality) {
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$this->quality = $quality;
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}
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/**
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* Draws the JPG on the screen or in a file
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*/
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function draw() {
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ob_start();
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imagejpeg($this->im, null, $this->quality);
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$bin = ob_get_contents();
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ob_end_clean();
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$this->setInternalProperties($bin);
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if (empty($this->filename)) {
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echo $bin;
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} else {
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file_put_contents($this->filename, $bin);
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}
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}
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function setInternalProperties(&$bin) { // private
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$this->internalSetDPI($bin);
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$this->internalSetC($bin);
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}
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function internalSetDPI(&$bin) { // private
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if($this->dpi !== null) {
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$bin = substr_replace($bin, pack("Cnn", 0x01, $this->dpi, $this->dpi), 13, 5);
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}
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}
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function internalSetC(&$bin) { // private
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if(strcmp(substr($bin, 0, 4), pack('H*', 'FFD8FFE0')) === 0) {
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$offset = 4 + (ord($bin[4]) << 8 | ord($bin[5]));
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$firstPart = substr($bin, 0, $offset);
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$secondPart = substr($bin, $offset);
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$cr = pack('H*', 'FFFE004447656E657261746564207769746820426172636F64652047656E657261746F7220666F722050485020687474703A2F2F7777772E626172636F64657068702E636F6D');
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$bin = $firstPart;
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$bin .= $cr;
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$bin .= $secondPart;
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}
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}
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}
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?>
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209
html/include/barcode/class/drawer/BCGDrawPNG.php
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209
html/include/barcode/class/drawer/BCGDrawPNG.php
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<?php
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/**
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* BCGDrawPNG.php
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*--------------------------------------------------------------------
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*
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* Image Class to draw PNG images with possibility to set DPI
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*
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*--------------------------------------------------------------------
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* Revision History
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* v2.1.0 8 nov 2009 Jean-Sébastien Goupil
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*--------------------------------------------------------------------
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* $Id: BCGDrawPNG.php,v 1.1 2009/11/09 04:15:10 jsgoupil Exp $
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* PHP5-Revision: 1.1
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*--------------------------------------------------------------------
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* Copyright (C) Jean-Sebastien Goupil
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* http://www.barcodephp.com
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*/
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include_once('BCGDraw.php');
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if (!function_exists('file_put_contents')) {
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function file_put_contents($filename, $data) {
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$f = @fopen($filename, 'w');
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if (!$f) {
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return false;
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} else {
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$bytes = fwrite($f, $data);
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fclose($f);
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return $bytes;
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}
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}
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}
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class BCGDrawPNG extends BCGDraw {
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var $dpi;
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/**
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* Constructor
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*
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* @param resource $im
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*/
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function BCGDrawPNG(&$im) {
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BCGDraw::BCGDraw($im);
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}
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/**
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* Sets the DPI
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*
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* @param int $dpi
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*/
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function setDPI($dpi) {
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if(is_numeric($dpi)) {
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$this->dpi = max(1, $dpi);
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} else {
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$this->dpi = null;
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}
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}
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/**
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* Draws the PNG on the screen or in a file
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*/
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function draw() {
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ob_start();
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imagepng($this->im);
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$bin = ob_get_contents();
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ob_end_clean();
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$this->setInternalProperties($bin);
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if (empty($this->filename)) {
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echo $bin;
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} else {
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file_put_contents($this->filename, $bin);
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}
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}
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function setInternalProperties(&$bin) { // private
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// Scan all the ChunkType
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if(strcmp(substr($bin, 0, 8), pack('H*', '89504E470D0A1A0A')) === 0) {
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$chunks = $this->detectChunks($bin);
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$this->internalSetDPI($bin, $chunks);
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$this->internalSetC($bin, $chunks);
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}
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}
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function detectChunks($bin) { // private
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$data = substr($bin, 8);
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$chunks = array();
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$c = strlen($data);
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$offset = 0;
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while($offset < $c) {
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$packed = unpack('Nsize/a4chunk', $data);
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$size = $packed['size'];
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$chunk = $packed['chunk'];
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$chunks[] = array('offset'=>$offset + 8, 'size'=>$size, 'chunk'=>$chunk);
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$jump = $size + 12;
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$offset += $jump;
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$data = substr($data, $jump);
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}
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return $chunks;
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}
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function internalSetDPI(&$bin, &$chunks) { // private
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if($this->dpi !== null) {
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$meters = (int)($this->dpi * 39.37007874);
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$found = -1;
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$c = count($chunks);
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for($i = 0; $i < $c; $i++) {
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// We already have a pHYs
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if($chunks[$i]['chunk'] === 'pHYs') {
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$found = $i;
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break;
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}
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}
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$data = 'pHYs' . pack('NNC', $meters, $meters, 0x01);
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$crc = BCGDrawPNG::crc($data, 13);
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$cr = pack('Na13N', 9, $data, $crc);
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// We didn't have a pHYs
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if($found == -1) {
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// Don't do anything if we have a bad PNG
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if($c >= 2 && $chunk[0]['chunk'] = 'IHDR') {
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array_splice($chunks, 1, 0, array(array('offset'=>33, 'size'=>9, 'chunk'=>'pHYs')));
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// Push the data
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for($i = 2; $i < $c; $i++) {
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$chunks[$i]['offset'] += 21;
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}
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$firstPart = substr($bin, 0, 33);
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$secondPart = substr($bin, 33);
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$bin = $firstPart;
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$bin .= $cr;
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$bin .= $secondPart;
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}
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} else {
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$bin = substr_replace($bin, $cr, $chunks[$i]['offset'], 21);
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}
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}
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}
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function internalSetC(&$bin, &$chunks) { // private
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if(count($chunks) >= 2 && $chunk[0]['chunk'] = 'IHDR') {
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$firstPart = substr($bin, 0, 33);
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$secondPart = substr($bin, 33);
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$cr = pack('H*', '0000004C74455874436F707972696768740047656E657261746564207769746820426172636F64652047656E657261746F7220666F722050485020687474703A2F2F7777772E626172636F64657068702E636F6D597F70B8');
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$bin = $firstPart;
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$bin .= $cr;
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$bin .= $secondPart;
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}
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// Chunks is dirty!! But we are done.
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}
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var $crc_table = array();
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var $crc_table_computed = false;
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function make_crc_table() { // private static
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for($n = 0; $n < 256; $n++) {
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$c = $n;
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for ($k = 0; $k < 8; $k++) {
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if (($c & 1) == 1) {
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$c = 0xedb88320 ^ (BCGDrawPNG::SHR($c, 1));
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} else {
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$c = BCGDrawPNG::SHR($c, 1);
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}
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}
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$this->crc_table[$n] = $c;
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}
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$this->crc_table_computed = true;
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}
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function SHR($x, $n) { // private static
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$mask = 0x40000000;
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if ($x < 0) {
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$x &= 0x7FFFFFFF;
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$mask >>= $n - 1;
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return ($x >> $n) | $mask;
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}
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return (int)$x >> (int)$n;
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}
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function update_crc($crc, $buf, $len) { // private static
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$c = $crc;
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if (!$this->crc_table_computed) {
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BCGDrawPNG::make_crc_table();
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}
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for($n = 0; $n < $len; $n++) {
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$c = $this->crc_table[($c ^ ord($buf[$n])) & 0xff] ^ (BCGDrawPNG::SHR($c, 8));
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}
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return $c;
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}
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function crc($data, $len) { // private static
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return BCGDrawPNG::update_crc(-1, $data, $len) ^ -1;
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}
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}
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?>
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