393 lines
12 KiB
Ruby
Executable file
393 lines
12 KiB
Ruby
Executable file
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#============================================================+
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# File name : c128aobject.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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# 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 : Code 128-A Barcode Render Class for PHP using
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# the GD graphics library.
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# Code 128-A is a continuous, multilevel and
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# include all upper case alphanumeric characters
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# and ASCII control characters.
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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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# Code 128-A Barcode Render Class for PHP using the GD graphics library.<br>
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# Code 128-A is a continuous, multilevel and include all upper case alphanumeric characters and ASCII control characters.
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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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# Code 128-A Barcode Render Class for PHP using the GD graphics library.<br>
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# Code 128-A is a continuous, multilevel and include all upper case alphanumeric characters and ASCII control characters.
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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 C128AObject 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 = $Value;
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@mChars = " !\"#$%&'()*+<2B>-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_";
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@mCharSet = array (
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"212222", # 00#
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"222122", # 01#
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"222221", # 02#
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"121223", # 03#
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"121322", # 04#
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"131222", # 05#
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"122213", # 06#
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"122312", # 07#
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"132212", # 08#
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"221213", # 09#
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"221312", # 10#
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"231212", # 11#
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"112232", # 12#
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"122132", # 13#
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"122231", # 14#
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"113222", # 15#
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"123122", # 16#
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"123221", # 17#
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"223211", # 18#
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"221132", # 19#
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"221231", # 20#
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"213212", # 21#
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"223112", # 22#
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"312131", # 23#
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"311222", # 24#
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"321122", # 25#
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"321221", # 26#
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"312212", # 27#
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"322112", # 28#
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"322211", # 29#
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"212123", # 30#
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"212321", # 31#
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"232121", # 32#
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"111323", # 33#
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"131123", # 34#
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"131321", # 35#
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"112313", # 36#
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"132113", # 37#
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"132311", # 38#
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"211313", # 39#
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"231113", # 40#
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"231311", # 41#
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"112133", # 42#
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"112331", # 43#
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"132131", # 44#
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"113123", # 45#
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"113321", # 46#
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"133121", # 47#
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"313121", # 48#
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"211331", # 49#
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"231131", # 50#
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"213113", # 51#
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"213311", # 52#
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"213131", # 53#
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"311123", # 54#
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"311321", # 55#
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"331121", # 56#
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"312113", # 57#
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"312311", # 58#
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"332111", # 59#
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"314111", # 60#
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"221411", # 61#
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"431111", # 62#
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"111224", # 63#
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"111422", # 64#
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"121124", # 65#
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"121421", # 66#
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"141122", # 67#
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"141221", # 68#
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"112214", # 69#
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"112412", # 70#
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"122114", # 71#
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"122411", # 72#
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"142112", # 73#
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"142211", # 74#
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"241211", # 75#
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"221114", # 76#
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"413111", # 77#
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"241112", # 78#
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"134111", # 79#
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"111242", # 80#
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"121142", # 81#
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"121241", # 82#
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"114212", # 83#
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"124112", # 84#
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"124211", # 85#
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"411212", # 86#
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"421112", # 87#
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"421211", # 88#
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"212141", # 89#
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"214121", # 90#
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"412121", # 91#
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"111143", # 92#
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"111341", # 93#
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"131141", # 94#
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"114113", # 95#
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"114311", # 96#
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"411113", # 97#
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"411311", # 98#
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"113141", # 99#
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"114131", # 100#
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"311141", # 101#
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"411131" # 102#
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);
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end
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#
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# Returns the character index.
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# @param char $char character.
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# @return int character index or -1 in case of error.
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# @access private
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#
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def GetCharIndex($char)
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for ($i=0;$i<64;$i++)
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if (@mChars[$i] == $char)
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return $i;
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end
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end
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return -1;
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end
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#
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# Returns the bar size.
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# @param int $xres Horizontal resolution.
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# @param char $char Character.
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# @return int barcode size.
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# @access private
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#
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def GetBarSize($xres, $char)
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switch ($char)
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case '1'
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$cVal = BCD_C128_BAR_1;
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case '2'
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$cVal = BCD_C128_BAR_2;
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case '3'
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$cVal = BCD_C128_BAR_3;
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case '4'
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$cVal = BCD_C128_BAR_4;
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default
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$cVal = 0;
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end
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end
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return $cVal# $xres;
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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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$ret = 0;
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for ($i=0;$i<$len;$i++)
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if (($id = GetCharIndex(@mValue[$i])) == -1)
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@mError = "C128A not include the char '".@mValue[$i]."'";
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return false;
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else
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$cset = @mCharSet[$id];
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$ret += GetBarSize($xres, $cset[0]);
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$ret += GetBarSize($xres, $cset[1]);
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$ret += GetBarSize($xres, $cset[2]);
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$ret += GetBarSize($xres, $cset[3]);
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$ret += GetBarSize($xres, $cset[4]);
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$ret += GetBarSize($xres, $cset[5]);
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end
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end
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# length of Check character#
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$cset = GetCheckCharValue();
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$CheckSize = 0;
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for ($i=0;$i<6;$i++)
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$CheckSize += GetBarSize($cset[$i], $xres);
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end
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$StartSize = 2*BCD_C128_BAR_2*$xres + 3*BCD_C128_BAR_1*$xres + BCD_C128_BAR_4*$xres;
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$StopSize = 2*BCD_C128_BAR_2*$xres + 3*BCD_C128_BAR_1*$xres + 2*BCD_C128_BAR_3*$xres;
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return $StartSize + $ret + $CheckSize + $StopSize;
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end
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#
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# Returns the check-char value.
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# @return string.
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# @access private
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#
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def GetCheckCharValue()
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$len = @mValue.length;
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$sum = 103; # 'A' type;
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for ($i=0;$i<$len;$i++)
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$sum += GetCharIndex(@mValue[$i])# ($i+1);
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end
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$check = $sum % 103;
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return @mCharSet[$check];
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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, $xres)
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# Start code is '211412'#
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@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, GetBarSize('2', $xres) , $ySize);
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$DrawPos += GetBarSize('2', $xres);
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$DrawPos += GetBarSize('1', $xres);
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@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, GetBarSize('1', $xres) , $ySize);
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$DrawPos += GetBarSize('1', $xres);
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$DrawPos += GetBarSize('4', $xres);
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@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, GetBarSize('1', $xres) , $ySize);
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$DrawPos += GetBarSize('1', $xres);
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$DrawPos += GetBarSize('2', $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, $xres)
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# Stop code is '2331112'#
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@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, GetBarSize('2', $xres) , $ySize);
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$DrawPos += GetBarSize('2', $xres);
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$DrawPos += GetBarSize('3', $xres);
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@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, GetBarSize('3', $xres) , $ySize);
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$DrawPos += GetBarSize('3', $xres);
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$DrawPos += GetBarSize('1', $xres);
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@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, GetBarSize('1', $xres) , $ySize);
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$DrawPos += GetBarSize('1', $xres);
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$DrawPos += GetBarSize('1', $xres);
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@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, GetBarSize('2', $xres) , $ySize);
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$DrawPos += GetBarSize('2', $xres);
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return $DrawPos;
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end
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#
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# Draws the check-char 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 $xres Horizontal resolution.
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# @return int drawing position.
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# @access private
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#
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def DrawCheckChar($DrawPos, $yPos, $ySize, $xres)
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$cset = GetCheckCharValue();
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@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, GetBarSize($cset[0], $xres) , $ySize);
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$DrawPos += GetBarSize($cset[0], $xres);
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$DrawPos += GetBarSize($cset[1], $xres);
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@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, GetBarSize($cset[2], $xres) , $ySize);
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$DrawPos += GetBarSize($cset[2], $xres);
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$DrawPos += GetBarSize($cset[3], $xres);
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@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, GetBarSize($cset[4], $xres) , $ySize);
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$DrawPos += GetBarSize($cset[4], $xres);
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$DrawPos += GetBarSize($cset[5], $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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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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# Total height of bar code -Bars only-#
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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 $ysize = @mHeight - BCD_DEFAULT_MAR_Y1 - BCD_DEFAULT_MAR_Y2;
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# Draw text#
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if (@mStyle & BCS_DRAW_TEXT)
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if (@mStyle & BCS_STRETCH_TEXT)
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for ($i=0;$i<$len;$i++)
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@DrawChar(@mFont, $sPos+(2*BCD_C128_BAR_2*$xres + 3*BCD_C128_BAR_1*$xres + BCD_C128_BAR_4*$xres)+($size/$len)*$i,
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$ysize + BCD_DEFAULT_MAR_Y1 + BCD_DEFAULT_TEXT_OFFSET, @mValue[$i]);
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else# Center#
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$text_width = GetFontWidth(@mFont)# @mValue.length;
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@DrawText(@mFont, $sPos+(($size-$text_width)/2)+(2*BCD_C128_BAR_2*$xres + 3*BCD_C128_BAR_1*$xres + BCD_C128_BAR_4*$xres),
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$ysize + BCD_DEFAULT_MAR_Y1 + BCD_DEFAULT_TEXT_OFFSET, @mValue);
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end
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end
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$cPos = 0;
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$DrawPos = @DrawStart($sPos, BCD_DEFAULT_MAR_Y1 , $ysize, $xres);
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do {
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$c = GetCharIndex(@mValue[$cPos]);
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$cset = @mCharSet[$c];
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@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, GetBarSize($cset[0], $xres) , $ysize);
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$DrawPos += GetBarSize($cset[0], $xres);
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$DrawPos += GetBarSize($cset[1], $xres);
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@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, GetBarSize($cset[2], $xres) , $ysize);
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$DrawPos += GetBarSize($cset[2], $xres);
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$DrawPos += GetBarSize($cset[3], $xres);
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@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, GetBarSize($cset[4], $xres) , $ysize);
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$DrawPos += GetBarSize($cset[4], $xres);
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$DrawPos += GetBarSize($cset[5], $xres);
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$cPos += 1;
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end while ($cPos<$len);
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$DrawPos = @DrawCheckChar($DrawPos, BCD_DEFAULT_MAR_Y1 , $ysize, $xres);
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$DrawPos = @DrawStop($DrawPos, 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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