<?php
/*
Barcode Render Class for PHP using the GD graphics library 
Copyright (C) 2001  Karim Mribti
								
   Version  0.0.7a  2001-04-01  
								
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
																  
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.
											   
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
																		 
Copy of GNU Lesser General Public License at: http://www.gnu.org/copyleft/lesser.txt
													 
Source code home page: http://www.mribti.com/barcode/
Contact author at: barcode@mribti.com
*/

/* 
  render for Jan
*/
    
/*
Extension of Barcode Class
Copyright (C) 2006 Naozumi Takenaka for Towerrecords
*/

define("BCD_JAN_LEFT_MARGIN_WIDTH", 11);
define("BCD_JAN_RIGHT_MARGIN_WIDTH", 7);
define("BCD_JAN_BAR_WIDTH", 1);
define("BCD_JAN_EDGE_GUARD_BAR_WIDTH", 3);
define("BCD_JAN_CENTER_GUARD_BAR_WIDTH", 5);

class JANObject extends BarcodeObject
{
  var $evenMCharSet;
  var $oddMCharSet;
  function JANObject($Width, $Height, $Style, $Value)
    {
      $this->BarcodeObject($Width, $Height, $Style, $Value);
      $this->mValue = $Value;
      $this->oddEven =
	 array(
	       0=>'OOOOOO',
	       1=>'OOEOEE',
	       2=>'OOEEOE',
	       3=>'OOEEEO',
	       4=>'OEOOEE',
	       5=>'OEEOOE',
	       6=>'OEEEOO',
	       7=>'OEOEOE',
	       8=>'OEOEEO',
	       9=>'OEEOEO');
      
      $this->oddMCharSet =
	 array(						
	       0=>"0001101",
	       1=>"0011001",
	       2=>"0010011",
	       3=>"0111101",
	       4=>"0100011",
	       5=>"0110001",
	       6=>"0101111",
	       7=>"0111011",
	       8=>"0110111",
	       9=>"0001011");
      $this->evenMCharSet =
	 array(						
	       0=>"0100111",
	       1=>"0110011",
	       2=>"0011011",
	       3=>"0100001",
	       4=>"0011101",
	       5=>"0111001",
	       6=>"0000101",
	       7=>"0010001",
	       8=>"0001001",
	       9=>"0010111");
      $this->rightMCharSet =
	 array(						
	       0=>"1110010",
	       1=>"1100110",
	       2=>"1101100",
	       3=>"1000010",
	       4=>"1011100",
	       5=>"1001110",
	       6=>"1010000",
	       7=>"1000100",
	       8=>"1001000",
	       9=>"1110100");
    }
  
function GetSize($xres)
  {
    $len = strlen($this->mValue);
    
    if ($len == 0)  {
      $this->mError = "Null value";
      __DEBUG__("GetRealSize: null barcode value");
      return false;
    }
    
    for ($i=0;$i<$len;$i++) {
      if ((ord($this->mValue[$i]) < 48) || (ord($this->mValue[$i]) > 57)) {
	$this->mError = "JAN is numeric only";
	return false;
      }
    }
    
    if ($len != 13){
      $this->mError = "The length of JAN code value must be 13";
      __DEBUG__("GetSize: failed JAN requiremente");
      return false;
    }		 
    $StartSize = BCD_JAN_LEFT_MARGIN_WIDTH + BCD_JAN_EDGE_GUARD_BAR_WIDTH;
    $StopSize  = BCD_JAN_RIGHT_MARGIN_WIDTH + BCD_JAN_EDGE_GUARD_BAR_WIDTH;
    $cPos = 0;
    $sPos = 0;
    do {      
      $sPos += 7 * $xres;
      $cPos++;
    } while ($cPos < $len);
    
    return $sPos + $StarSize + $StopSize + BCD_JAN_CENTER_GUARD_BAR_WIDTH;
  }
 
  function DrawStart($DrawPos, $yPos, $ySize, $xres)
    {
      $DrawPos += BCD_JAN_LEFT_MARGIN_WIDTH;
      $this->DrawSingleBar($DrawPos, $yPos, BCD_JAN_BAR_WIDTH * $xres, $ySize + min($ySize * 0.2, 16));
      $DrawPos += BCD_JAN_BAR_WIDTH * $xres;
      $DrawPos += BCD_JAN_BAR_WIDTH * $xres;
      $this->DrawSingleBar($DrawPos, $yPos, BCD_JAN_BAR_WIDTH * $xres, $ySize + min($ySize * 0.2, 16));
      $DrawPos += BCD_JAN_BAR_WIDTH * $xres;
      return $DrawPos;
    }
  
  function DrawStop($DrawPos, $yPos, $ySize, $xres)
    {
      $this->DrawSingleBar($DrawPos, $yPos, BCD_JAN_BAR_WIDTH * $xres, $ySize + min($ySize * 0.2, 16));
      $DrawPos += BCD_JAN_BAR_WIDTH * $xres;
      $DrawPos += BCD_JAN_BAR_WIDTH * $xres;
      $this->DrawSingleBar($DrawPos, $yPos, BCD_JAN_BAR_WIDTH * $xres, $ySize + min($ySize * 0.2, 16));
      $DrawPos += BCD_JAN_RIGHT_MARGIN_WIDTH;
      return $DrawPos;
    }
   
  function DrawObject ($xres)
    {
      $len = strlen($this->mValue);
      
      if(($size = $this->GetSize($xres))==0){
	__DEBUG__("GetSize: failed");
	return FALSE;
      }    
      
      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, $sPos+BCD_JAN_BAR_WIDTH*$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-$text_width)/2)+(BCD_JAN_BAR_WIDTH*$xres),
			  $ysize + BCD_DEFAULT_MAR_Y1 + BCD_DEFAULT_TEXT_OFFSET, $this->mValue);
	} 	 			 
      }						 
      
      $oe = $this->oddEven[$this->mValue[0]];
      $DrawPos = $this->DrawStart($sPos, BCD_DEFAULT_MAR_Y1 , $ysize, $xres); 
      for($cPos = 1; $cPos < 7; $cPos++){
	$c = (int)$this->mValue[$cPos];
	$pattern = ($oe[$cPos - 1] == 'O')?($this->oddMCharSet[$c]):($this->evenMCharSet[$c]);
	for($i = 0; $i < 7; $i++){
	  if($pattern{$i} == '1') $this->DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, $xres, $ysize);
	  $DrawPos += BCD_JAN_BAR_WIDTH * $xres;
	}
      }
      $DrawPos += BCD_JAN_BAR_WIDTH * $xres;
      $this->DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, $xres, $ysize + min($ysize * 0.2, 16));
      $DrawPos += BCD_JAN_BAR_WIDTH * $xres;
      $DrawPos += BCD_JAN_BAR_WIDTH * $xres;
      $this->DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, $xres, $ysize + min($ysize * 0.2, 16));
      $DrawPos += BCD_JAN_BAR_WIDTH * $xres;
      $DrawPos += BCD_JAN_BAR_WIDTH * $xres;
      
      for($cPos = 7; $cPos < 13; $cPos++){
	$c = (int)$this->mValue[$cPos];
	$pattern = $this->rightMCharSet[$c];//right side is even only
	for($i = 0; $i < 7; $i++){
	  if($pattern{$i} == '1') $this->DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, $xres, $ysize);
	  $DrawPos += BCD_JAN_BAR_WIDTH * $xres;
	}
      }
      $DrawPos =  $this->DrawStop($DrawPos, BCD_DEFAULT_MAR_Y1 , $ysize, $xres);
      return TRUE;
    }
}
?>