<?xml version="1.0" encoding="UTF-8"?>
<!--***********************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 ***********************************************************-->


<xsl:stylesheet version="1.0"
	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
	xmlns:chart="urn:oasis:names:tc:opendocument:xmlns:chart:1.0"
	xmlns:config="urn:oasis:names:tc:opendocument:xmlns:config:1.0"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:dom="http://www.w3.org/2001/xml-events"
	xmlns:dr3d="urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0"
	xmlns:draw="urn:oasis:names:tc:opendocument:xmlns:drawing:1.0"
	xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0"
	xmlns:form="urn:oasis:names:tc:opendocument:xmlns:form:1.0"
	xmlns:math="http://www.w3.org/1998/Math/MathML"
	xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0"
	xmlns:number="urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0"
	xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0"
	xmlns:ooo="http://openoffice.org/2004/office"
	xmlns:oooc="http://openoffice.org/2004/calc"
	xmlns:ooow="http://openoffice.org/2004/writer"
	xmlns:script="urn:oasis:names:tc:opendocument:xmlns:script:1.0"
	xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0"
	xmlns:svg="urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0"
	xmlns:table="urn:oasis:names:tc:opendocument:xmlns:table:1.0"
	xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0"
	xmlns:xlink="http://www.w3.org/1999/xlink"
	xmlns:xt="http://www.jclark.com/xt"
	xmlns:common="http://exslt.org/common"
	xmlns:xalan="http://xml.apache.org/xalan"
	xmlns="urn:schemas-microsoft-com:office:spreadsheet" xmlns:c="urn:schemas-microsoft-com:office:component:spreadsheet" xmlns:html="http://www.w3.org/TR/REC-html40" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:x2="http://schemas.microsoft.com/office/excel/2003/xml" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	exclude-result-prefixes="chart config dc dom dr3d draw fo form math meta number office ooo oooc ooow script style svg table text xlink xt common xalan">

	<xsl:variable name="namespace-html" select="'http://www.w3.org/TR/REC-html40'" />

	<xsl:template match="@table:style-name | @table:default-cell-style-name">
		<xsl:if test="not(name() = 'Default')">
			<xsl:attribute name="ss:StyleID">
				<xsl:value-of  select="." />
			</xsl:attribute>
		</xsl:if>
	</xsl:template>

	<xsl:key match="table:table-cell" name="getCellByStyle" use="@table:style-name"/>
	<xsl:template match="@table:style-name" mode="table-row">
		<!-- only row styles used by cells are exported,
			as usual row style properties are already written as row attributes -->
		<xsl:if test="key('getCellByStyle', '.')">
			<xsl:attribute name="ss:StyleID">
				<xsl:value-of  select="." />
			</xsl:attribute>
		</xsl:if>
	</xsl:template>

	<xsl:template name="style-and-contents">
		<xsl:param name="cellStyleName" />

		<!-- WorkAround of Excel2003 issue:
			Styles from the CellStyle will not be inherited to HTML content (e.g. Colour style).
		-->
		<xsl:choose>
			<xsl:when test="@text:style-name">
				<xsl:variable name="styles">
					<xsl:copy-of select="key('styles', @text:style-name)/*" />
					<xsl:copy-of select="key('styles', $cellStyleName)/*" />
				</xsl:variable>
				<xsl:choose>
					<xsl:when test="function-available('xalan:nodeset')">
						<xsl:call-template name="create-nested-format-tags">
							<xsl:with-param name="styles" select="xalan:nodeset($styles)" />
							<xsl:with-param name="cellStyleName" select="$cellStyleName" />
						</xsl:call-template>
					</xsl:when>
					<xsl:when test="function-available('xt:node-set')">
						<xsl:call-template name="create-nested-format-tags">
							<xsl:with-param name="styles" select="xt:node-set($styles)" />
							<xsl:with-param name="cellStyleName" select="$cellStyleName" />
						</xsl:call-template>
					</xsl:when>
					<xsl:when test="function-available('common:node-set')">
						<xsl:call-template name="create-nested-format-tags">
							<xsl:with-param name="styles" select="common:node-set($styles)" />
							<xsl:with-param name="cellStyleName" select="$cellStyleName" />
						</xsl:call-template>
					</xsl:when>
					<xsl:otherwise>
						<xsl:message terminate="yes">The required node-set function was not found!</xsl:message>
					</xsl:otherwise>
				</xsl:choose>
			</xsl:when>
			<xsl:when test="@table:style-name">
				<xsl:variable name="styles">
					<xsl:copy-of select="key('styles', @text:style-name)/*" />
					<xsl:copy-of select="key('styles', $cellStyleName)/*" />
				</xsl:variable>

				<xsl:choose>
					<xsl:when test="function-available('xalan:nodeset')">
						<xsl:call-template name="create-nested-format-tags">
							<xsl:with-param name="styles" select="xalan:nodeset($styles)" />
							<xsl:with-param name="cellStyleName" select="$cellStyleName" />
						</xsl:call-template>
					</xsl:when>
					<xsl:when test="function-available('xt:node-set')">
						<xsl:call-template name="create-nested-format-tags">
							<xsl:with-param name="styles" select="xt:node-set($styles)" />
							<xsl:with-param name="cellStyleName" select="$cellStyleName" />
						</xsl:call-template>
					</xsl:when>
					<xsl:when test="function-available('common:node-set')">
						<xsl:call-template name="create-nested-format-tags">
							<xsl:with-param name="styles" select="common:node-set($styles)" />
							<xsl:with-param name="cellStyleName" select="$cellStyleName" />
						</xsl:call-template>
					</xsl:when>
					<xsl:otherwise>
						<xsl:message terminate="yes">The required node-set function was not found!</xsl:message>
					</xsl:otherwise>
				</xsl:choose>
			</xsl:when>
			<xsl:otherwise>
				<xsl:apply-templates>
					<xsl:with-param name="cellStyleName" select="$cellStyleName" />
				</xsl:apply-templates>
			</xsl:otherwise>
		</xsl:choose>
	</xsl:template>


	<!-- *********************************** -->
	<!-- *** creating nested format tags *** -->
	<!-- *********************************** -->

	<!-- Bold -->
	<xsl:template name="create-nested-format-tags">
		<xsl:param name="styles" />
		<xsl:param name="cellStyleName" />

		<xsl:choose>
			<xsl:when test="$styles/*/@fo:font-weight = 'bold' or $styles/*/@fo:font-weight = 'bolder'">
				<xsl:element namespace="{$namespace-html}" name="B">
					<xsl:call-template name="italic">
						<xsl:with-param name="styles" select="$styles" />
						<xsl:with-param name="cellStyleName" select="$cellStyleName" />
					</xsl:call-template>
				</xsl:element>
			</xsl:when>
			<xsl:otherwise>
				<xsl:call-template name="italic">
					<xsl:with-param name="styles" select="$styles" />
					<xsl:with-param name="cellStyleName" select="$cellStyleName" />
				</xsl:call-template>
			</xsl:otherwise>
		</xsl:choose>
	</xsl:template>


	<!-- Italic -->
	<xsl:template name="italic">
		<xsl:param name="styles" />
		<xsl:param name="cellStyleName" />

		<xsl:choose>
			<xsl:when test="$styles/*/@fo:font-style = 'italic' or $styles/*/@fo:font-style = 'oblique'">
				<xsl:element namespace="{$namespace-html}" name="I">
					<xsl:call-template name="underline">
						<xsl:with-param name="styles" select="$styles" />
						<xsl:with-param name="cellStyleName" select="$cellStyleName" />
					</xsl:call-template>
				</xsl:element>
			</xsl:when>
			<xsl:otherwise>
				<xsl:call-template name="underline">
					<xsl:with-param name="styles" select="$styles" />
					<xsl:with-param name="cellStyleName" select="$cellStyleName" />
				</xsl:call-template>
			</xsl:otherwise>
		</xsl:choose>
	</xsl:template>


	<!-- Underline -->
	<xsl:template name="underline">
		<xsl:param name="styles" />
		<xsl:param name="cellStyleName" />

		<xsl:choose>
			<xsl:when test="$styles/*/@style:text-underline-type and not($styles/*/@style:text-underline-type = 'none')">
				<xsl:element namespace="{$namespace-html}" name="U">
					<xsl:call-template name="strikethrough">
						<xsl:with-param name="styles" select="$styles" />
						<xsl:with-param name="cellStyleName" select="$cellStyleName" />
					</xsl:call-template>
				</xsl:element>
			</xsl:when>
			<xsl:otherwise>
				<xsl:call-template name="strikethrough">
					<xsl:with-param name="styles" select="$styles" />
					<xsl:with-param name="cellStyleName" select="$cellStyleName" />
				</xsl:call-template>
			</xsl:otherwise>
		</xsl:choose>

	</xsl:template>


	<!-- strikethrough -->
	<xsl:template name="strikethrough">
		<xsl:param name="styles" />
		<xsl:param name="cellStyleName" />

		<xsl:choose>
			<xsl:when test="$styles/*/@style:text-line-through-style and not($styles/*/@style:text-line-through-style = 'none')">
				<xsl:element namespace="{$namespace-html}" name="S">
					<xsl:call-template name="super-subscript">
						<xsl:with-param name="styles" select="$styles" />
						<xsl:with-param name="cellStyleName" select="$cellStyleName" />
					</xsl:call-template>
				</xsl:element>
			</xsl:when>
			<xsl:otherwise>
				<xsl:call-template name="super-subscript">
					<xsl:with-param name="styles" select="$styles" />
					<xsl:with-param name="cellStyleName" select="$cellStyleName" />
				</xsl:call-template>
			</xsl:otherwise>
		</xsl:choose>
	</xsl:template>



	<!-- superscript & subscript -->
	<xsl:template name="super-subscript">
		<xsl:param name="styles" />
		<xsl:param name="cellStyleName" />

		<xsl:choose>
			<xsl:when test="$styles/*/@style:text-position">
				<xsl:variable name="textPosition" select="number(substring-before($styles/*/@style:text-position, '% '))" />
				<xsl:choose>
					<xsl:when test="$textPosition &gt; 0">
						<xsl:element namespace="{$namespace-html}" name="Sup">
							<xsl:call-template name="align">
								<xsl:with-param name="styles" select="$styles" />
								<xsl:with-param name="cellStyleName" select="$cellStyleName" />
							</xsl:call-template>
						</xsl:element>
					</xsl:when>
					<xsl:when test="$textPosition &lt; 0">
						<xsl:element namespace="{$namespace-html}" name="Sub">
							<xsl:call-template name="align">
								<xsl:with-param name="styles" select="$styles" />
								<xsl:with-param name="cellStyleName" select="$cellStyleName" />
							</xsl:call-template>
						</xsl:element>
					</xsl:when>
					<xsl:otherwise>
						<xsl:call-template name="align">
							<xsl:with-param name="styles" select="$styles" />
							<xsl:with-param name="cellStyleName" select="$cellStyleName" />
						</xsl:call-template>
					</xsl:otherwise>
				</xsl:choose>
			</xsl:when>
			<xsl:otherwise>
				<xsl:call-template name="align">
					<xsl:with-param name="styles" select="$styles" />
					<xsl:with-param name="cellStyleName" select="$cellStyleName" />
				</xsl:call-template>
			</xsl:otherwise>
		</xsl:choose>
	</xsl:template>


	<!-- Alignment - normally called by strikethrough, but no DIV elements in HTML -->
	<xsl:template name="align">
		<xsl:param name="styles" />
		<xsl:param name="cellStyleName" />

		<xsl:choose>
			<xsl:when test="$styles/*/@fo:font-align">
				<xsl:element namespace="{$namespace-html}" name="DIV">
					<xsl:attribute name="html:style">
						 <xsl:choose>
							<xsl:when test="$styles/*/@fo:font-align = 'start'">
								<xsl:text>text-align:left;</xsl:text>
							</xsl:when>
							<xsl:when test="$styles/*/@fo:font-align = 'end'">
								<xsl:text>text-align:right;</xsl:text>
							</xsl:when>
							<xsl:otherwise>
								<xsl:text>text-align:center;</xsl:text>
							</xsl:otherwise>
						 </xsl:choose>
					</xsl:attribute>
					<xsl:call-template name="font">
						<xsl:with-param name="styles" select="$styles" />
						<xsl:with-param name="cellStyleName" select="$cellStyleName" />
					</xsl:call-template>
				</xsl:element>
			</xsl:when>
			<xsl:otherwise>
				<xsl:call-template name="font">
					<xsl:with-param name="styles" select="$styles" />
					<xsl:with-param name="cellStyleName" select="$cellStyleName" />
				</xsl:call-template>
			</xsl:otherwise>
		</xsl:choose>
	</xsl:template>


	<!-- Font (size and color)  -->
	<xsl:template name="font">
		<xsl:param name="styles" />
		<xsl:param name="cellStyleName" />

		<xsl:choose>
			<xsl:when test="$styles/*/@style:font-name or
							$styles/*/@fo:font-size or
							$styles/*/@fo:color">
				<xsl:element namespace="{$namespace-html}" name="Font">
					<xsl:if test="$styles/*/@style:font-name">
						<xsl:attribute name="html:Face">
							 <xsl:value-of select="$styles/*/@style:font-name" />
						</xsl:attribute>
					</xsl:if>
					<xsl:if test="$styles/*/@fo:color">
						<xsl:attribute name="html:Color">
							 <xsl:value-of select="$styles/*/@fo:color" />
						</xsl:attribute>
					</xsl:if>
					<xsl:if test="$styles/*/@fo:font-size">
						<!-- WORKAROUND TO EXCEL2003 issue where nested FONT elements with size attributes result in unloadable documents -->
						<!-- Only create size attribute if parent do not have already one -->

						<!--<xsl:choose>
							<xsl:when test="not(key('styles', parent::*/@text:style-name)/*/@fo:font-size)"> -->
						<xsl:if test="not(key('styles', parent::*/@text:style-name)/*/@fo:font-size)">
							<xsl:attribute name="html:Size">
								<xsl:call-template name="convert2pt">
									<xsl:with-param name="value" select="$styles/*/@fo:font-size" />
									<xsl:with-param name="cellStyleName" select="$cellStyleName" />
								</xsl:call-template>
							</xsl:attribute>
						</xsl:if>
						<!--</xsl:when>
							<xsl:otherwise>
								<xsl:message>Due Excel issue we have to neglect size from @text:style-name '<xsl:value-of select="@text:style-name"/>'!</xsl:message>
							</xsl:otherwise>
						</xsl:choose>-->
					</xsl:if>
					<!-- get the embedded content -->
					<xsl:apply-templates>
						<xsl:with-param name="cellStyleName" select="$cellStyleName" />
					</xsl:apply-templates>
				</xsl:element>
			</xsl:when>
			<xsl:otherwise>
				<!-- get the embedded content -->
				<xsl:apply-templates>
					<xsl:with-param name="cellStyleName" select="$cellStyleName" />
				</xsl:apply-templates>
			</xsl:otherwise>
		</xsl:choose>
	</xsl:template>

</xsl:stylesheet>
