comparison vendor/plugins/rfpdf/lib/barcode/c39object.rb @ 441:cbce1fd3b1b7 redmine-1.2

Update to Redmine 1.2-stable branch (Redmine SVN rev 6000)

+
+#============================================================+
+# File name   : c39object.rb
+# Begin       : 2002-07-31
+# Last Update : 2004-12-29
+# Author      : Karim Mribti [[e-mail]]
+#             : Nicola Asuni [[e-mail]]
+# 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 : Code 39 Barcode Render Class for PHP using
+#               the GD graphics library.
+#               Code 39 is an alphanumeric bar code that can
+#               encode decimal number, case alphabet and some
+#               special symbols.
+#
+# NOTE:
+# This version contains changes by Nicola Asuni:
+#  - porting to Ruby
+#  - code style and formatting
+#  - automatic php documentation in PhpDocumentor Style
+#    (www.phpdoc.org)
+#  - minor bug fixing
+#============================================================+
+
+#
+# Code 39 Barcode Render Class.<br>
+# Code 39 is an alphanumeric bar code that can encode decimal number, case alphabet and some special symbols.
+# @author Karim Mribti, Nicola Asuni
+# @name BarcodeObject
+# @package 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
+#
+
+#
+# Code 39 Barcode Render Class.<br>
+# Code 39 is an alphanumeric bar code that can encode decimal number, case alphabet and some special symbols.
+# @author Karim Mribti, Nicola Asuni
+# @name BarcodeObject
+# @package 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 C39Object 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 $Value value to print on barcode.
+	#
+	def __construct($Width, $Height, $Style, $Value)
+		parent::__construct($Width, $Height, $Style);
+		@mValue = $Value;
+		@mChars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-.#$/+%";
+		@mCharSet = array (
+		# 0 # "000110100",
+		# 1 # "100100001",
+		# 2 # "001100001",
+		# 3 # "101100000",
+		# 4 # "000110001",
+		# 5 # "100110000",
+		# 6 # "001110000",
+		# 7 # "000100101",
+		# 8 # "100100100",
+		# 9 # "001100100",
+		# A # "100001001",
+		# B # "001001001",
+		# C # "101001000",
+		# D # "000011001",
+		# E # "100011000",
+		# F # "001011000",
+		# G # "000001101",
+		# H # "100001100",
+		# I # "001001100",
+		# J # "000011100",
+		# K # "100000011",
+		# L # "001000011",
+		# M # "101000010",
+		# N # "000010011",
+		# O # "100010010",
+		# P # "001010010",
+		# Q # "000000111",
+		# R # "100000110",
+		# S # "001000110",
+		# T # "000010110",
+		# U # "110000001",
+		# V # "011000001",
+		# W # "111000000",
+		# X # "010010001",
+		# Y # "110010000",
+		# Z # "011010000",
+		# - # "010000101",
+		# . # "110000100",
+		# SP# "011000100",
+		/*# # "010010100",
+		# $ # "010101000",
+		# / # "010100010",
+		# + # "010001010",
+		# % # "000101010"
+		);
+	end
+
+	#
+	# Returns the character index.
+	# @param char $char character.
+	# @return int character index or -1 in case of error.
+	# @access private
+	#
+	def GetCharIndex($char)
+		for ($i=0;$i<44;$i++)
+			if (@mChars[$i] == $char)
+				return $i;
+			end
+		end
+		return -1;
+	end
+	
+	#
+	# Returns barcode size.
+	# @param int $xres Horizontal resolution.
+	# @return barcode size.
+	# @access private
+	#
+	def GetSize($xres)
+		$len = @mValue.length;
+
+		if ($len == 0)  {
+			@mError = "Null value";
+			return false;
+		end
+
+		for ($i=0;$i<$len;$i++)
+			if (GetCharIndex(@mValue[$i]) == -1 || @mValue[$i] == '*')
+				# The asterisk is only used as a start and stop code#
+				@mError = "C39 not include the char '".@mValue[$i]."'";
+				return false;
+			end
+		end
+
+		# Start, Stop is 010010100 == '*' #
+		$StartSize = BCD_C39_NARROW_BAR# $xres# 6 + BCD_C39_WIDE_BAR# $xres# 3;
+		$StopSize  = BCD_C39_NARROW_BAR# $xres# 6 + BCD_C39_WIDE_BAR# $xres# 3;
+		$CharSize  = BCD_C39_NARROW_BAR# $xres# 6 + BCD_C39_WIDE_BAR# $xres# 3; # Same for all chars#
+
+		return $CharSize# $len + $StartSize + $StopSize + # Space between chars# BCD_C39_NARROW_BAR# $xres# ($len-1);
+	end
+
+	#
+	# Draws the start code.
+	# @param int $DrawPos Drawing position.
+	# @param int $yPos Vertical position.
+	# @param int $ySize Vertical size.
+	# @param int $xres Horizontal resolution.
+	# @return int drawing position.
+	# @access private
+	#
+	def DrawStart($DrawPos, $yPos, $ySize, $xres)
+		# Start code is '*'#
+		$narrow = BCD_C39_NARROW_BAR# $xres;
+		$wide   = BCD_C39_WIDE_BAR# $xres;
+		@DrawSingleBar($DrawPos, $yPos, $narrow , $ySize);
+		$DrawPos += $narrow;
+		$DrawPos += $wide;
+		@DrawSingleBar($DrawPos, $yPos, $narrow , $ySize);
+		$DrawPos += $narrow;
+		$DrawPos += $narrow;
+		@DrawSingleBar($DrawPos, $yPos, $wide , $ySize);
+		$DrawPos += $wide;
+		$DrawPos += $narrow;
+		@DrawSingleBar($DrawPos, $yPos, $wide , $ySize);
+		$DrawPos += $wide;
+		$DrawPos += $narrow;
+		@DrawSingleBar($DrawPos, $yPos, $narrow, $ySize);
+		$DrawPos += $narrow;
+		$DrawPos += $narrow; # Space between chars#
+		return $DrawPos;
+	end
+	
+	#
+	# Draws the stop code.
+	# @param int $DrawPos Drawing position.
+	# @param int $yPos Vertical position.
+	# @param int $ySize Vertical size.
+	# @param int $xres Horizontal resolution.
+	# @return int drawing position.
+	# @access private
+	#
+	def DrawStop($DrawPos, $yPos, $ySize, $xres)
+		# Stop code is '*'#
+		$narrow = BCD_C39_NARROW_BAR# $xres;
+		$wide   = BCD_C39_WIDE_BAR# $xres;
+		@DrawSingleBar($DrawPos, $yPos, $narrow , $ySize);
+		$DrawPos += $narrow;
+		$DrawPos += $wide;
+		@DrawSingleBar($DrawPos, $yPos, $narrow , $ySize);
+		$DrawPos += $narrow;
+		$DrawPos += $narrow;
+		@DrawSingleBar($DrawPos, $yPos, $wide , $ySize);
+		$DrawPos += $wide;
+		$DrawPos += $narrow;
+		@DrawSingleBar($DrawPos, $yPos, $wide , $ySize);
+		$DrawPos += $wide;
+		$DrawPos += $narrow;
+		@DrawSingleBar($DrawPos, $yPos, $narrow, $ySize);
+		$DrawPos += $narrow;
+		return $DrawPos;
+	end
+	
+	#
+	# Draws the barcode object.
+	# @param int $xres Horizontal resolution.
+	# @return bool true in case of success.
+	#
+	def DrawObject($xres)
+		$len = @mValue.length;
+
+		$narrow = BCD_C39_NARROW_BAR# $xres;
+		$wide   = BCD_C39_WIDE_BAR# $xres;
+
+		if (($size = GetSize($xres))==0)
+			return false;
+		end
+
+		$cPos = 0;
+		if (@mStyle & BCS_ALIGN_CENTER) $sPos = (integer)((@mWidth - $size ) / 2);
+		elsif (@mStyle & BCS_ALIGN_RIGHT) $sPos = @mWidth - $size;
+		else $sPos = 0;
+
+		# Total height of bar code -Bars only-#
+		if (@mStyle & BCS_DRAW_TEXT) $ysize = @mHeight - BCD_DEFAULT_MAR_Y1 - BCD_DEFAULT_MAR_Y2 - GetFontHeight(@mFont);
+		else $ysize = @mHeight - BCD_DEFAULT_MAR_Y1 - BCD_DEFAULT_MAR_Y2;
+
+		# Draw text#
+		if (@mStyle & BCS_DRAW_TEXT)
+			if (@mStyle & BCS_STRETCH_TEXT)
+				for ($i=0;$i<$len;$i++)
+					@DrawChar(@mFont, $sPos+($narrow*6+$wide*3)+($size/$len)*$i,
+					$ysize + BCD_DEFAULT_MAR_Y1 + BCD_DEFAULT_TEXT_OFFSET, @mValue[$i]);
+				else# Center#
+			$text_width = GetFontWidth(@mFont)# @mValue.length;
+			@DrawText(@mFont, $sPos+(($size-$text_width)/2)+($narrow*6+$wide*3),
+			$ysize + BCD_DEFAULT_MAR_Y1 + BCD_DEFAULT_TEXT_OFFSET, @mValue);
+			end
+		end
+
+		$DrawPos = @DrawStart($sPos, BCD_DEFAULT_MAR_Y1 , $ysize, $xres);
+		do {
+			$c     = GetCharIndex(@mValue[$cPos]);
+			$cset  = @mCharSet[$c];
+			@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, ($cset[0] == '0') ? $narrow : $wide , $ysize);
+			$DrawPos += ($cset[0] == '0') ? $narrow : $wide;
+			$DrawPos += ($cset[1] == '0') ? $narrow : $wide;
+			@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, ($cset[2] == '0') ? $narrow : $wide , $ysize);
+			$DrawPos += ($cset[2] == '0') ? $narrow : $wide;
+			$DrawPos += ($cset[3] == '0') ? $narrow : $wide;
+			@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, ($cset[4] == '0') ? $narrow : $wide , $ysize);
+			$DrawPos += ($cset[4] == '0') ? $narrow : $wide;
+			$DrawPos += ($cset[5] == '0') ? $narrow : $wide;
+			@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, ($cset[6] == '0') ? $narrow : $wide , $ysize);
+			$DrawPos += ($cset[6] == '0') ? $narrow : $wide;
+			$DrawPos += ($cset[7] == '0') ? $narrow : $wide;
+			@DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, ($cset[8] == '0') ? $narrow : $wide , $ysize);
+			$DrawPos += ($cset[8] == '0') ? $narrow : $wide;
+			$DrawPos += $narrow; # Space between chars#
+			$cPos += 1;
+		end while ($cPos<$len);
+		$DrawPos =  @DrawStop($DrawPos, BCD_DEFAULT_MAR_Y1 , $ysize, $xres);
+		return true;
+	end
+}
+
+#============================================================+
+# END OF FILE
+#============================================================+