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<?xml version="1.0" encoding="UTF-8"?>
<!--
DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
Copyright 2008 by Sun Microsystems, Inc.
OpenOffice.org - a multi-platform office productivity suite
$RCSfile: measure_conversion.xsl,v $
$Revision: 1.9 $
This file is part of OpenOffice.org.
OpenOffice.org is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License version 3
only, as published by the Free Software Foundation.
OpenOffice.org 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 version 3 for more details
(a copy is included in the LICENSE file that accompanied this code).
You should have received a copy of the GNU Lesser General Public License
version 3 along with OpenOffice.org. If not, see
<http://www.openoffice.org/license.html>
for a copy of the LGPLv3 License.
-->
<!--
For further documentation and updates visit http://xml.openoffice.org/odf2xhtml
-->
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<!-- DPI (dots per inch) the standard resolution of given pictures (necessary for the conversion of 'cm' into 'pixel')
Although many pictures have a 96 dpi resolution, a higher resoltion give better results for common browsers -->
<xsl:param name="dpi" select="111"/>
<xsl:param name="centimeter-in-mm" select="10"/>
<xsl:param name="inch-in-mm" select="25.4"/>
<xsl:param name="didot-point-in-mm" select="0.376065"/>
<xsl:param name="pica-in-mm" select="4.2333333"/>
<xsl:param name="point-in-mm" select="0.3527778"/>
<xsl:param name="twip-in-mm" select="0.017636684"/>
<xsl:param name="pixel-in-mm" select="$inch-in-mm div $dpi"/>
<!-- ***** MEASUREMENT CONVERSIONS *****
PARAM 'value'
The measure to be converted.
The current measure is judged by a substring (e.g. 'mm', 'cm', 'in', 'pica'...)
directly added to the number.
PARAM 'rounding-factor'
Is used for the rounding of decimal places.
The parameter number is the product of 1 and some '10', where
every zero represents a decimal place.
For example, providing as parameter:
<xsl:param name="rounding-factor" select="10000" />
Gives by default four decimal places.
To round two decimal places, basically the following is done:
<xsl:value-of select="round(100 * value) div 100"/>
RETURN The converted number, by default rounded to four decimal places.
In case the input measure could not be matched the same value is
returned and a warning message is written out.
MEASURE LIST:
* 1 milimeter (mm), the basic measure
* 1 centimeter (cm) = 10 mm
* 1 inch (in) = 25.4 mm
While the English have already seen the light (read: the metric system), the US
remains loyal to this medieval system.
* 1 point (pt) = 0.35277777.. mm
Sometimes called PostScript point (ppt), as when Adobe created PostScript, they added their own system of points.
There are exactly 72 PostScript points in 1 inch.
* 1 twip = twentieth of a (PostScript) point
A twip (twentieth of a point) is a 1/20th of a PostScript point, a traditional measure in printing.
* 1 didot point (dpt) = 0.376065 mm
Didot point after the French typographer Firmin Didot (1764-1836).
More details under
http://www.unc.edu/~rowlett/units/dictP.html:
"A unit of length used by typographers and printers. When printing was done
from hand-set metal type, one point represented the smallest element of type
that could be handled, roughly 1/64 inch. Eventually, the point was standardized
in Britain and America as exactly 1/72.27 = 0.013 837 inch, which is
about 0.35 mm (351.46 micrometers). In continental Europe, typographers
traditionally used a slightly larger point of 0.014 83 inch (about
1/72 pouce, 0.377 mm, or roughly 1/67 English inch), called a Didot point
after the French typographer Firmin Didot (1764-1836). In the U.S.,
Adobe software defines the point to be exactly 1/72 inch (0.013 888 9 inch
or 0.352 777 8 millimeters) and TeX software uses a slightly smaller point
of 0.351 459 8035 mm. The German standards agency DIN has proposed that
all these units be replaced by multiples of 0.25 millimeters (1/101.6 inch).
* 1 pica = 4.233333 mm
1/6 inch or 12 points
* 1 pixel (px) = 0.26458333.. mm (relative to 'DPI', here: 96 dpi)
Most pictures have the 96 dpi resolution, but the dpi variable may vary by stylesheet parameter
-->
<!-- changing measure to mm -->
<xsl:template name="convert2mm">
<xsl:param name="value"/>
<xsl:param name="rounding-factor" select="10000"/>
<xsl:choose>
<xsl:when test="contains($value, 'mm')">
<xsl:value-of select="substring-before($value, 'mm')"/>
</xsl:when>
<xsl:when test="contains($value, 'cm')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'cm' ) * $centimeter-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'in')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'in' ) * $inch-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'pt')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'pt') * $point-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'twip')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'twip') * $twip-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'dpt')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'dpt') * $didot-point-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'pica')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'pica') * $pica-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'px')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'px') * $pixel-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:otherwise>
<xsl:message>measure_conversion.xsl: Find no conversion for <xsl:value-of select="$value"/> to 'mm'!</xsl:message>
<xsl:value-of select="$value"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<!-- changing measure to cm -->
<xsl:template name="convert2cm">
<xsl:param name="value"/>
<xsl:param name="rounding-factor" select="10000"/>
<xsl:choose>
<xsl:when test="contains($value, 'mm')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'mm') div $centimeter-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'cm')">
<xsl:value-of select="substring-before($value, 'cm')"/>
</xsl:when>
<xsl:when test="contains($value, 'in')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'in') div $centimeter-in-mm * $inch-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'pt')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'pt') div $centimeter-in-mm * $point-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'dpt')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'dpt') div $centimeter-in-mm * $didot-point-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'pica')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'pica') div $centimeter-in-mm * $pica-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'twip')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'twip') div $centimeter-in-mm * $twip-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'px')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'px') div $centimeter-in-mm * $pixel-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:otherwise>
<xsl:message>measure_conversion.xsl: Find no conversion for <xsl:value-of select="$value"/> to 'cm'!</xsl:message>
<xsl:value-of select="$value"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<!-- changing measure to inch (cp. section comment) -->
<xsl:template name="convert2in">
<xsl:param name="value"/>
<xsl:param name="rounding-factor" select="10000"/>
<xsl:choose>
<xsl:when test="contains($value, 'mm')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'mm') div $inch-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'cm')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'cm') div $inch-in-mm * $centimeter-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'in')">
<xsl:value-of select="substring-before($value, 'in')"/>
</xsl:when>
<xsl:when test="contains($value, 'pt')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'pt') div $inch-in-mm * $point-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'dpt')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'dpt') div $inch-in-mm * $didot-point-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'pica')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'pica') div $inch-in-mm * $pica-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'twip')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'twip') div $inch-in-mm * $twip-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'px')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'px') div $inch-in-mm * $pixel-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:otherwise>
<xsl:message>measure_conversion.xsl: Find no conversion for <xsl:value-of select="$value"/> to 'in'!</xsl:message>
<xsl:value-of select="$value"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<!-- changing measure to dpt (cp. section comment) -->
<xsl:template name="convert2dpt">
<xsl:param name="value"/>
<xsl:param name="rounding-factor" select="10000"/>
<xsl:choose>
<xsl:when test="contains($value, 'mm')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'mm') div $didot-point-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'cm')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'cm') div $didot-point-in-mm * $centimeter-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'in')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'in') div $didot-point-in-mm * $inch-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'pt')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'pt') div $didot-point-in-mm * $point-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'dpt')">
<xsl:value-of select="substring-before($value, 'dpt')"/>
</xsl:when>
<xsl:when test="contains($value, 'pica')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'pica') div $didot-point-in-mm * $pica-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'twip')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'twip') div $didot-point-in-mm * $twip-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'px')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'px') div $didot-point-in-mm * $pixel-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:otherwise>
<xsl:message>measure_conversion.xsl: Find no conversion for <xsl:value-of select="$value"/> to 'dpt'!</xsl:message>
<xsl:value-of select="$value"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<!-- changing measure to pica (cp. section comment) -->
<xsl:template name="convert2pica">
<xsl:param name="value"/>
<xsl:param name="rounding-factor" select="10000"/>
<xsl:choose>
<xsl:when test="contains($value, 'mm')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'mm') div $pica-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'cm')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'cm') div $pica-in-mm * $centimeter-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'in')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'in') div $pica-in-mm * $inch-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'pt')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'pt') div $pica-in-mm * $point-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'dpt')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'dpt') div $pica-in-mm * $didot-point-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'pica')">
<xsl:value-of select="substring-before($value, 'pica')"/>
</xsl:when>
<xsl:when test="contains($value, 'twip')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'twip') div $pica-in-mm * $twip-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'px')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'px') div $pica-in-mm * $pixel-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:otherwise>
<xsl:message>measure_conversion.xsl: Find no conversion for <xsl:value-of select="$value"/> to 'pica'!</xsl:message>
<xsl:value-of select="$value"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<!-- changing measure to pt (cp. section comment) -->
<xsl:template name="convert2pt">
<xsl:param name="value"/>
<xsl:param name="rounding-factor" select="10000"/>
<xsl:choose>
<xsl:when test="contains($value, 'mm')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'mm') div $point-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'cm')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'cm') div $point-in-mm * $centimeter-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'in')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'in') div $point-in-mm * $inch-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'pt')">
<xsl:value-of select="substring-before($value, 'pt')"/>
</xsl:when>
<xsl:when test="contains($value, 'dpt')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'dpt') div $point-in-mm * $didot-point-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'pica')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'pica') div $point-in-mm * $pica-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'twip')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'twip') div $point-in-mm * $twip-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'px')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'px') div $point-in-mm * $pixel-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:otherwise>
<xsl:message>measure_conversion.xsl: Find no conversion for <xsl:value-of select="$value"/> to 'pt'!</xsl:message>
<xsl:value-of select="$value"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<!-- changing measure to twip (cp. section comment) -->
<xsl:template name="convert2twip">
<xsl:param name="value"/>
<xsl:param name="rounding-factor" select="10000"/>
<xsl:choose>
<xsl:when test="contains($value, 'mm')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'mm') div $twip-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'cm')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'cm') div $twip-in-mm * $centimeter-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'in')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'in') div $twip-in-mm * $inch-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'pt')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'pt') div $twip-in-mm * $point-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'dpt')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'dpt') div $twip-in-mm * $didot-point-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'pica')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'pica') div $twip-in-mm * $pica-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:when test="contains($value, 'twip')">
<xsl:value-of select="substring-before($value, 'twip')"/>
</xsl:when>
<xsl:when test="contains($value, 'px')">
<xsl:value-of select="round($rounding-factor * number(substring-before($value, 'px') div $twip-in-mm * $pixel-in-mm)) div $rounding-factor"/>
</xsl:when>
<xsl:otherwise>
<xsl:message>measure_conversion.xsl: Find no conversion for <xsl:value-of select="$value"/> to 'twip'!</xsl:message>
<xsl:value-of select="$value"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<!-- changing measure to pixel by via parameter provided dpi (dots per inch) standard factor (cp. section comment) -->
<xsl:template name="convert2px">
<xsl:param name="value"/>
<xsl:choose>
<xsl:when test="contains($value, 'mm')">
<xsl:value-of select="round(number(substring-before($value, 'mm')) div $pixel-in-mm)"/>
</xsl:when>
<xsl:when test="contains($value, 'cm')">
<xsl:value-of select="round(number(substring-before($value, 'cm')) div $pixel-in-mm * $centimeter-in-mm)"/>
</xsl:when>
<xsl:when test="contains($value, 'in')">
<xsl:value-of select="round(number(substring-before($value, 'in')) div $pixel-in-mm * $inch-in-mm)"/>
</xsl:when>
<xsl:when test="contains($value, 'pt')">
<xsl:value-of select="round(number(substring-before($value, 'pt')) div $pixel-in-mm * $point-in-mm)"/>
</xsl:when>
<xsl:when test="contains($value, 'dpt')">
<xsl:value-of select="round(number(substring-before($value, 'dpt')) div $pixel-in-mm * $didot-point-in-mm)"/>
</xsl:when>
<xsl:when test="contains($value, 'pica')">
<xsl:value-of select="round(number(substring-before($value, 'pica')) div $pixel-in-mm * $pica-in-mm)"/>
</xsl:when>
<xsl:when test="contains($value, 'twip')">
<xsl:value-of select="round(number(substring-before($value, 'twip')) div $pixel-in-mm * $twip-in-mm)"/>
</xsl:when>
<xsl:when test="contains($value, 'px')">
<xsl:value-of select="$value"/>
</xsl:when>
<xsl:otherwise>
<xsl:message>measure_conversion.xsl: Find no conversion for <xsl:value-of select="$value"/> to 'px'!</xsl:message>
<xsl:value-of select="$value"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
|