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