Edit C:\edeal\res\generation_pdf\xsl\Plugins\Barcodes\code128-svg.xsl
<?xml version="1.0"?> <!-- ========================================================= --> <!-- --> <!-- (c) 2003-2007, RenderX --> <!-- --> <!-- Author: Alexander Peshkov <peshkov@renderx.com> --> <!-- --> <!-- Permission is granted to use this document, copy and --> <!-- modify free of charge, provided that every derived work --> <!-- bear a reference to the present document. --> <!-- --> <!-- This document contains a computer program written in --> <!-- XSL Transformations Language. It is published with no --> <!-- warranty of any kind about its usability, as a mere --> <!-- example of XSL technology. RenderX shall not be --> <!-- considered liable for any damage or loss of data caused --> <!-- by use of this program. --> <!-- --> <!-- ========================================================= --> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:svg="http://www.w3.org/2000/svg"> <!-- ========================================================= --> <!-- This stylesheet exports a named template used to draw a --> <!-- code 128 barcode as an SVG image. --> <!-- When used stand-alone, it creates SVG from a code --> <!-- sequence passed in a parameter. --> <!-- --> <!-- Template "draw-barcode" can take a number of parameters, --> <!-- of which only the first one is mandatory. --> <!-- --> <!-- Mandatory parameters are: --> <!-- --> <!-- "sequence" - sequence of barcode states --> <!-- to be drawn. --> <!-- Mandatory parameter. --> <!-- --> <!-- Optional parameters are: --> <!-- --> <!-- "string" - information encoded by this barcode; --> <!-- (in the human-readable form) --> <!-- Default is empty string. --> <!-- "print-text" - boolean, defines if a human --> <!-- readable label should be printed. --> <!-- Default is: 'true' --> <!-- "module" - width of the elementary unit --> <!-- bar/space; --> <!-- Default is 0.0075in --> <!-- "height" - pattern height (= bar length). --> <!-- Default is 0.25in --> <!-- "quiet-horizontal" - quiet zone horizontal margin width --> <!-- Default is 0.25in --> <!-- "quiet-vertical" - quiet zone vertical margin width --> <!-- Default is 0.075in --> <!-- "font-family" - a font family used to print textual --> <!-- representation of a barcode. --> <!-- Default is 'Courier' --> <!-- "font-height" - a height of the font used to print --> <!-- textual representation of a barcode. --> <!-- Default is 6pt --> <!-- ========================================================= --> <!-- Main template. --> <!-- Normalize all lengths and calculates all widths/heights --> <!-- Creates SVG element, prints numerical barcode representation and recursevely draws all bars --> <xsl:template name="draw-barcode-code128"> <!-- Bar states code sequence --> <xsl:param name="sequence" select="''"/> <!-- Information encoded by given barcode states --> <xsl:param name="string" select="''"/> <!-- Is human readable string printed under barcode? --> <xsl:param name="print-text" select="'true'"/> <!-- Optional parameters for drawing --> <xsl:param name="module" select="'0.0075in'"/> <xsl:param name="height" select="'0.25in'"/> <xsl:param name="quiet-horizontal" select="'0.25in'"/> <xsl:param name="quiet-vertical" select="'0.075in'"/> <xsl:param name="font-family" select="'Courier'"/> <xsl:param name="font-height" select="'6pt'"/> <!-- Parse narrow bar/space width specifier --> <xsl:variable name="narrow-real"> <xsl:call-template name="convert-to-basic-units"> <xsl:with-param name="length" select="$module"/> </xsl:call-template> </xsl:variable> <!-- Parse bar height specifier --> <xsl:variable name="height-real"> <xsl:call-template name="convert-to-basic-units"> <xsl:with-param name="length" select="$height"/> </xsl:call-template> </xsl:variable> <!-- Parse quiet zone vertical/horizontal margins specifiers --> <xsl:variable name="quiet-horizontal-real"> <xsl:call-template name="convert-to-basic-units"> <xsl:with-param name="length" select="$quiet-horizontal"/> </xsl:call-template> </xsl:variable> <xsl:variable name="quiet-vertical-real"> <xsl:call-template name="convert-to-basic-units"> <xsl:with-param name="length" select="$quiet-vertical"/> </xsl:call-template> </xsl:variable> <!-- Calculate font height and line-height--> <xsl:variable name="font-height-real"> <xsl:call-template name="convert-to-basic-units"> <xsl:with-param name="length" select="$font-height"/> </xsl:call-template> </xsl:variable> <xsl:variable name="line-height-real" select="round($font-height-real*1.2)*number($print-text='true')"/> <!-- Useful variable - number of characters in code string --> <xsl:variable name="length"> <xsl:value-of select="(string-length($sequence) - 1) div 6"/> </xsl:variable> <!-- Calculate codesequence length --> <xsl:variable name="code-width-real" select="$narrow-real*(11*($length - 1) + 13)"/> <!-- Calculate drawing area dimensions --> <xsl:variable name="area-width-real" select="$code-width-real + 2*$quiet-horizontal-real"/> <xsl:variable name="area-height-real" select="$height-real + $line-height-real + 2*$quiet-vertical-real"/> <!-- Establish SVG drawing area --> <!-- Drawing unit is equal to 1/360mm --> <svg:svg width="{concat($area-width-real div 360, 'mm')}" height="{concat($area-height-real div 360, 'mm')}" viewBox="{concat('0 0 ', $area-width-real, ' ', $area-height-real)}"> <desc xmlns:mydoc="http://example.org/mydoc"> <barcode value="{$string}" type="code128"></barcode> </desc> <!-- Prepare actual path --> <xsl:variable name="path"> <!-- Call template to reqursively draw all bars --> <xsl:call-template name="recursive-draw-code128"> <xsl:with-param name="sequence" select="$sequence"/> <xsl:with-param name="narrow-real" select="$narrow-real"/> <xsl:with-param name="height-real" select="$height-real"/> </xsl:call-template> </xsl:variable> <!-- Position a pen at the beggining of the barcode and make the actual drawing --> <xsl:variable name="full-path" select="concat('M ', $quiet-horizontal-real, ' ' , $quiet-vertical-real, $path)"/> <svg:path d="{$full-path}" fill="black"/> <xsl:if test="$print-text='true'"> <svg:text x="{$area-width-real div 2}" y="{$quiet-vertical-real*2 + $height-real + $font-height-real}" text-anchor="middle" font-family="{$font-family}" font-size="{$font-height-real}" fill="black"><xsl:value-of select="$string"/></svg:text> </xsl:if> </svg:svg> </xsl:template> <!-- Draws single bar and calls itself if there are more bars to be drawn --> <xsl:template name="recursive-draw-code128"> <xsl:param name="sequence"/> <xsl:param name="narrow-real"/> <xsl:param name="height-real"/> <xsl:param name="position" select="1"/> <xsl:variable name="barstate" select="substring($sequence, 1, 1)"/> <!-- Select bar width --> <xsl:variable name="width" select="$narrow-real*$barstate"/> <!-- Draw black or white bar --> <xsl:choose> <xsl:when test="($position mod 2) = 1"> <!-- Create appropriate path segment --> <xsl:value-of select="concat(' l 0 ', $height-real, ' ', $width, ' 0 0 -', $height-real, ' z m ', $width, ' 0')"/> </xsl:when> <xsl:otherwise> <!-- Create appropriate path segment --> <xsl:value-of select="concat(' m ', $width, ' 0')"/> </xsl:otherwise> </xsl:choose> <xsl:if test="string-length($sequence) > 1"> <xsl:call-template name="recursive-draw-code128"> <xsl:with-param name="sequence" select="substring($sequence,2)"/> <xsl:with-param name="narrow-real" select="$narrow-real"/> <xsl:with-param name="height-real" select="$height-real"/> <xsl:with-param name="position" select="$position + 1"/> </xsl:call-template> </xsl:if> </xsl:template> </xsl:stylesheet>
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