File Source for BarcodeObject

<?php
//============================================================+
// File name : i25aobject.php
// Begin : 2002-07-31
// Last Update : 2004-12-29
// Author : Karim Mribti [barcode@mribti.com]
// : Nicola Asuni [info@tecnick.com]
// Version : 0.0.8a 2001-04-01 (original code)
// License : GNU LGPL (Lesser General Public License) 2.1
// http://www.gnu.org/copyleft/lesser.txt
// Source Code : http://www.mribti.com/barcode/
//
// Description : I25 Barcode Render Class for PHP using
// the GD graphics library.
// Interleaved 2 of 5 is a numeric only bar code
// with a optional check number.
//
// NOTE:
// This version contains changes by Nicola Asuni:
// - porting to PHP5
// - code style and formatting
// - automatic php documentation in PhpDocumentor Style
// (www.phpdoc.org)
// - minor bug fixing
//============================================================+
/**
* I25 Barcode Render Class for PHP using the GD graphics library.<br<
* Interleaved 2 of 5 is a numeric only bar code with a optional check number.
* @author Karim Mribti, Nicola Asuni
* @name BarcodeObject
* @package linea21.externals
* @subpackage com.tecnick.tcpdf
* @version 0.0.8a 2001-04-01 (original code)
* @since 2001-03-25
* @license http://www.gnu.org/copyleft/lesser.html LGPL
*/
/**
* I25 Barcode Render Class for PHP using the GD graphics library.<br<
* Interleaved 2 of 5 is a numeric only bar code with a optional check number.
* @author Karim Mribti, Nicola Asuni
* @name BarcodeObject
* @package linea21.externals
* @subpackage com.tecnick.tcpdf
* @version 0.0.8a 2001-04-01 (original code)
* @since 2001-03-25
* @license http://www.gnu.org/copyleft/lesser.html LGPL
*/
class I25Object extends BarcodeObject {
/**
* Class Constructor.
* @param int $Width Image width in pixels.
* @param int $Height Image height in pixels.
* @param int $Style Barcode style.
* @param int $Value value to print on barcode.
*/
public function __construct($Width, $Height, $Style, $Value) {
parent::__construct($Width, $Height, $Style);
$this->mValue = $Value;
$this->mCharSet = array (
/* 0 */ "00110",
/* 1 */ "10001",
/* 2 */ "01001",
/* 3 */ "11000",
/* 4 */ "00101",
/* 5 */ "10100",
/* 6 */ "01100",
/* 7 */ "00011",
/* 8 */ "10010",
/* 9 */ "01010"
);
}
/**
* Returns barcode size.
* @param int $xres Horizontal resolution.
* @return barcode size.
* @access private
*/
private function GetSize($xres) {
$len = strlen($this->mValue);
if ($len == 0) {
$this->mError = "Null value";
return false;
}
for ($i=0;$i<$len;$i++) {
if ((ord($this->mValue[$i])<48) || (ord($this->mValue[$i])>57)) {
$this->mError = "I25 is numeric only";
return false;
}
}
if (($len%2) != 0) {
$this->mError = "The length of barcode value must be even";
return false;
}
$StartSize = BCD_I25_NARROW_BAR * 4 * $xres;
$StopSize = BCD_I25_WIDE_BAR * $xres + 2 * BCD_I25_NARROW_BAR * $xres;
$cPos = 0;
$sPos = 0;
do {
$c1 = $this->mValue[$cPos];
$c2 = $this->mValue[$cPos+1];
$cset1 = $this->mCharSet[$c1];
$cset2 = $this->mCharSet[$c2];
for ($i=0;$i<5;$i++) {
$type1 = ($cset1[$i]==0) ? (BCD_I25_NARROW_BAR * $xres) : (BCD_I25_WIDE_BAR * $xres);
$type2 = ($cset2[$i]==0) ? (BCD_I25_NARROW_BAR * $xres) : (BCD_I25_WIDE_BAR * $xres);
$sPos += ($type1 + $type2);
}
$cPos+=2;
} while ($cPos<$len);
return $sPos + $StartSize + $StopSize;
}
/**
* Draws the start code.
* @param int $DrawPos Drawing position.
* @param int $yPos Vertical position.
* @param int $ySize Vertical size.
* @param int $xres Horizontal resolution.
* @return int drawing position.
* @access private
*/
private function DrawStart($DrawPos, $yPos, $ySize, $xres) {
/* Start code is "0000" */
$this->DrawSingleBar($DrawPos, $yPos, BCD_I25_NARROW_BAR * $xres , $ySize);
$DrawPos += BCD_I25_NARROW_BAR * $xres;
$DrawPos += BCD_I25_NARROW_BAR * $xres;
$this->DrawSingleBar($DrawPos, $yPos, BCD_I25_NARROW_BAR * $xres , $ySize);
$DrawPos += BCD_I25_NARROW_BAR * $xres;
$DrawPos += BCD_I25_NARROW_BAR * $xres;
return $DrawPos;
}
/**
* Draws the stop code.
* @param int $DrawPos Drawing position.
* @param int $yPos Vertical position.
* @param int $ySize Vertical size.
* @param int $xres Horizontal resolution.
* @return int drawing position.
* @access private
*/
private function DrawStop($DrawPos, $yPos, $ySize, $xres) {
/* Stop code is "100" */
$this->DrawSingleBar($DrawPos, $yPos, BCD_I25_WIDE_BAR * $xres , $ySize);
$DrawPos += BCD_I25_WIDE_BAR * $xres;
$DrawPos += BCD_I25_NARROW_BAR * $xres;
$this->DrawSingleBar($DrawPos, $yPos, BCD_I25_NARROW_BAR * $xres , $ySize);
$DrawPos += BCD_I25_NARROW_BAR * $xres;
return $DrawPos;
}
/**
* Draws the barcode object.
* @param int $xres Horizontal resolution.
* @return bool true in case of success.
*/
public function DrawObject($xres) {
$len = strlen($this->mValue);
if (($size = $this->GetSize($xres))==0) {
return false;
}
$cPos = 0;
if ($this->mStyle & BCS_DRAW_TEXT) $ysize = $this->mHeight - BCD_DEFAULT_MAR_Y1 - BCD_DEFAULT_MAR_Y2 - $this->GetFontHeight($this->mFont);
else $ysize = $this->mHeight - BCD_DEFAULT_MAR_Y1 - BCD_DEFAULT_MAR_Y2;
if ($this->mStyle & BCS_ALIGN_CENTER) $sPos = (integer)(($this->mWidth - $size ) / 2);
else if ($this->mStyle & BCS_ALIGN_RIGHT) $sPos = $this->mWidth - $size;
else $sPos = 0;
if ($this->mStyle & BCS_DRAW_TEXT) {
if ($this->mStyle & BCS_STRETCH_TEXT) {
/* Stretch */
for ($i=0;$i<$len;$i++) {
$this->DrawChar($this->mFont, $sPos+BCD_I25_NARROW_BAR*4*$xres+($size/$len)*$i,
$ysize + BCD_DEFAULT_MAR_Y1 + BCD_DEFAULT_TEXT_OFFSET , $this->mValue[$i]);
}
}else {/* Center */
$text_width = $this->GetFontWidth($this->mFont) * strlen($this->mValue);
$this->DrawText($this->mFont, $sPos+(($size-$text_width)/2)+(BCD_I25_NARROW_BAR*4*$xres),
$ysize + BCD_DEFAULT_MAR_Y1 + BCD_DEFAULT_TEXT_OFFSET, $this->mValue);
}
}
$sPos = $this->DrawStart($sPos, BCD_DEFAULT_MAR_Y1, $ysize, $xres);
do {
$c1 = $this->mValue[$cPos];
$c2 = $this->mValue[$cPos+1];
$cset1 = $this->mCharSet[$c1];
$cset2 = $this->mCharSet[$c2];
for ($i=0;$i<5;$i++) {
$type1 = ($cset1[$i]==0) ? (BCD_I25_NARROW_BAR * $xres) : (BCD_I25_WIDE_BAR * $xres);
$type2 = ($cset2[$i]==0) ? (BCD_I25_NARROW_BAR * $xres) : (BCD_I25_WIDE_BAR * $xres);
$this->DrawSingleBar($sPos, BCD_DEFAULT_MAR_Y1, $type1 , $ysize);
$sPos += ($type1 + $type2);
}
$cPos+=2;
} while ($cPos<$len);
$sPos = $this->DrawStop($sPos, BCD_DEFAULT_MAR_Y1, $ysize, $xres);
return true;
}
}
//============================================================+
// END OF FILE
//============================================================+
?>

Source for file BarcodeObject