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<?xml version="1.0"?>

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<xsl:stylesheet xmlns:func="http://exslt.org/functions" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape" xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd" xmlns:svg="http://www.w3.org/2000/svg" xmlns:str="http://exslt.org/strings" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:exsl="http://exslt.org/common" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ns="beremiz" xmlns:cc="http://creativecommons.org/ns#" xmlns:regexp="http://exslt.org/regular-expressions" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:dc="http://purl.org/dc/elements/1.1/" extension-element-prefixes="ns func exsl regexp str dyn" version="1.0" exclude-result-prefixes="ns str regexp exsl func dyn">

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  <xsl:output method="xml" cdata-section-elements="xhtml:script"/>

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  <xsl:variable name="hmi_elements" select="//svg:*[starts-with(@inkscape:label, 'HMI:')]"/>

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  <xsl:variable name="hmitree" select="ns:GetHMITree()"/>

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  <xsl:variable name="_categories">

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    <noindex>

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      <xsl:text>HMI_PLC_STATUS</xsl:text>

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    </noindex>

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    <noindex>

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      <xsl:text>HMI_CURRENT_PAGE</xsl:text>

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    </noindex>

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  </xsl:variable>

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  <xsl:variable name="categories" select="exsl:node-set($_categories)"/>

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  <xsl:variable name="_indexed_hmitree">

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    <xsl:apply-templates mode="index" select="$hmitree"/>

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  </xsl:variable>

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  <xsl:variable name="indexed_hmitree" select="exsl:node-set($_indexed_hmitree)"/>

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  <xsl:template mode="index" match="*">

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    <xsl:param name="index" select="0"/>

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    <xsl:param name="parentpath" select="''"/>

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    <xsl:variable name="content">

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      <xsl:variable name="path">

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        <xsl:choose>

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          <xsl:when test="count(ancestor::*)=0">

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            <xsl:text>/</xsl:text>

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          </xsl:when>

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          <xsl:when test="count(ancestor::*)=1">

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            <xsl:text>/</xsl:text>

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            <xsl:value-of select="@name"/>

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          </xsl:when>

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          <xsl:otherwise>

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            <xsl:value-of select="$parentpath"/>

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            <xsl:text>/</xsl:text>

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            <xsl:value-of select="@name"/>

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          </xsl:otherwise>

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        </xsl:choose>

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      </xsl:variable>

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      <xsl:choose>

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        <xsl:when test="not(local-name() = $categories/noindex)">

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          <xsl:copy>

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            <xsl:attribute name="index">

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              <xsl:value-of select="$index"/>

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            </xsl:attribute>

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            <xsl:attribute name="hmipath">

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              <xsl:value-of select="$path"/>

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            </xsl:attribute>

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            <xsl:for-each select="@*">

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              <xsl:copy/>

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            </xsl:for-each>

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          </xsl:copy>

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          <xsl:apply-templates mode="index" select="*[1]">

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            <xsl:with-param name="index" select="$index + 1"/>

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            <xsl:with-param name="parentpath">

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              <xsl:value-of select="$path"/>

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            </xsl:with-param>

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          </xsl:apply-templates>

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        </xsl:when>

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        <xsl:otherwise>

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          <xsl:apply-templates mode="index" select="*[1]">

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            <xsl:with-param name="index" select="$index"/>

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            <xsl:with-param name="parentpath">

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              <xsl:value-of select="$path"/>

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            </xsl:with-param>

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          </xsl:apply-templates>

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        </xsl:otherwise>

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      </xsl:choose>

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    </xsl:variable>

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    <xsl:copy-of select="$content"/>

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    <xsl:apply-templates mode="index" select="following-sibling::*[1]">

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      <xsl:with-param name="index" select="$index + count(exsl:node-set($content)/*)"/>

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      <xsl:with-param name="parentpath">

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        <xsl:value-of select="$parentpath"/>

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      </xsl:with-param>

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    </xsl:apply-templates>

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  </xsl:template>

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  <xsl:template mode="parselabel" match="*">

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    <xsl:variable name="label" select="@inkscape:label"/>

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    <xsl:variable name="description" select="substring-after($label,'HMI:')"/>

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    <xsl:variable name="_args" select="substring-before($description,'@')"/>

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    <xsl:variable name="args">

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      <xsl:choose>

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        <xsl:when test="$_args">

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          <xsl:value-of select="$_args"/>

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        </xsl:when>

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        <xsl:otherwise>

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          <xsl:value-of select="$description"/>

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        </xsl:otherwise>

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      </xsl:choose>

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    </xsl:variable>

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    <xsl:variable name="_type" select="substring-before($args,':')"/>

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    <xsl:variable name="type">

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      <xsl:choose>

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        <xsl:when test="$_type">

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          <xsl:value-of select="$_type"/>

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        </xsl:when>

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        <xsl:otherwise>

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          <xsl:value-of select="$args"/>

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        </xsl:otherwise>

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      </xsl:choose>

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    </xsl:variable>

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    <xsl:if test="$type">

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      <widget>

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        <xsl:attribute name="id">

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          <xsl:value-of select="@id"/>

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        </xsl:attribute>

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        <xsl:attribute name="type">

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          <xsl:value-of select="$type"/>

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        </xsl:attribute>

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        <xsl:for-each select="str:split(substring-after($args, ':'), ':')">

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          <arg>

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            <xsl:attribute name="value">

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              <xsl:value-of select="."/>

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            </xsl:attribute>

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          </arg>

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        </xsl:for-each>

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        <xsl:variable name="paths" select="substring-after($description,'@')"/>

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        <xsl:for-each select="str:split($paths, '@')">

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          <xsl:if test="string-length(.) &gt; 0">

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            <path>

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              <xsl:attribute name="value">

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                <xsl:value-of select="."/>

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              </xsl:attribute>

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              <xsl:variable name="path" select="."/>

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              <xsl:variable name="item" select="$indexed_hmitree/*[@hmipath = $path]"/>

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              <xsl:if test="count($item) = 1">

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                <xsl:attribute name="index">

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                  <xsl:value-of select="$item/@index"/>

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                </xsl:attribute>

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              </xsl:if>

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            </path>

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          </xsl:if>

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        </xsl:for-each>

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      </widget>

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    </xsl:if>

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  </xsl:template>

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  <xsl:variable name="_parsed_widgets">

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    <xsl:apply-templates mode="parselabel" select="$hmi_elements"/>

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  </xsl:variable>

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  <xsl:variable name="parsed_widgets" select="exsl:node-set($_parsed_widgets)"/>

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  <func:function name="func:widget">

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    <xsl:param name="id"/>

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    <func:result select="$parsed_widgets/widget[@id = $id]"/>

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  </func:function>

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  <func:function name="func:is_descendant_path">

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    <xsl:param name="descend"/>

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    <xsl:param name="ancest"/>

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    <func:result select="string-length($ancest) &gt; 0 and starts-with($descend,$ancest)"/>

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  </func:function>

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  <xsl:template mode="testtree" match="*">

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    <xsl:param name="indent" select="''"/>

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    <xsl:value-of select="$indent"/>

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    <xsl:text> </xsl:text>

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    <xsl:value-of select="local-name()"/>

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    <xsl:text> </xsl:text>

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    <xsl:for-each select="@*">

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      <xsl:value-of select="local-name()"/>

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      <xsl:text>="</xsl:text>

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      <xsl:value-of select="."/>

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      <xsl:text>" </xsl:text>

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    </xsl:for-each>

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    <xsl:text>

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</xsl:text>

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    <xsl:apply-templates mode="testtree" select="*">

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      <xsl:with-param name="indent">

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        <xsl:value-of select="concat($indent,'&gt;')"/>

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      </xsl:with-param>

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    </xsl:apply-templates>

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  </xsl:template>

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  <xsl:template name="debug_hmitree">

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    <xsl:text>Raw HMI tree

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</xsl:text>

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    <xsl:apply-templates mode="testtree" select="$hmitree"/>

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    <xsl:text>

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</xsl:text>

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    <xsl:text>Indexed HMI tree

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</xsl:text>

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    <xsl:apply-templates mode="testtree" select="$indexed_hmitree"/>

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    <xsl:text>

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</xsl:text>

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    <xsl:text>Parsed Widgets

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</xsl:text>

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    <xsl:copy-of select="_parsed_widgets"/>

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    <xsl:apply-templates mode="testtree" select="$parsed_widgets"/>

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  </xsl:template>

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  <xsl:variable name="geometry" select="ns:GetSVGGeometry()"/>

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  <xsl:template name="debug_geometry">

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    <xsl:text>ID, x, y, w, h

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</xsl:text>

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    <xsl:for-each select="$geometry">

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      <xsl:text> </xsl:text>

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      <xsl:value-of select="@Id"/>

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      <xsl:text> </xsl:text>

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      <xsl:value-of select="@x"/>

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      <xsl:text> </xsl:text>

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      <xsl:value-of select="@y"/>

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      <xsl:text> </xsl:text>

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      <xsl:value-of select="@w"/>

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      <xsl:text> </xsl:text>

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      <xsl:value-of select="@h"/>

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      <xsl:text>

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</xsl:text>

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    </xsl:for-each>

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  </xsl:template>

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  <func:function name="func:intersect_1d">

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    <xsl:param name="a0"/>

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    <xsl:param name="a1"/>

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    <xsl:param name="b0"/>

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    <xsl:param name="b1"/>

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    <xsl:variable name="d0" select="$a0 &gt;= $b0"/>

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    <xsl:variable name="d1" select="$a1 &gt;= $b1"/>

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    <xsl:choose>

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      <xsl:when test="not($d0) and $d1">

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        <func:result select="3"/>

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      </xsl:when>

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      <xsl:when test="$d0 and not($d1)">

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        <func:result select="2"/>

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      </xsl:when>

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      <xsl:when test="$d0 and $d1 and $a0 &lt; $b1">

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        <func:result select="1"/>

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      </xsl:when>

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      <xsl:when test="not($d0) and not($d1) and $b0 &lt; $a1">

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        <func:result select="1"/>

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      </xsl:when>

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      <xsl:otherwise>

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        <func:result select="0"/>

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      </xsl:otherwise>

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    </xsl:choose>

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  </func:function>

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  <func:function name="func:intersect">

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    <xsl:param name="a"/>

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    <xsl:param name="b"/>

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    <xsl:variable name="x_intersect" select="func:intersect_1d($a/@x, $a/@x+$a/@w, $b/@x, $b/@x+$b/@w)"/>

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    <xsl:choose>

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      <xsl:when test="$x_intersect != 0">

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        <xsl:variable name="y_intersect" select="func:intersect_1d($a/@y, $a/@y+$a/@h, $b/@y, $b/@y+$b/@h)"/>

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        <func:result select="$x_intersect * $y_intersect"/>

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      </xsl:when>

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      <xsl:otherwise>

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        <func:result select="0"/>

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      </xsl:otherwise>

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    </xsl:choose>

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  </func:function>

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  <func:function name="func:overlapping_geometry">

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    <xsl:param name="elt"/>

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    <xsl:variable name="groups" select="/svg:svg | //svg:g"/>

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    <xsl:variable name="g" select="$geometry[@Id = $elt/@id]"/>

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    <xsl:variable name="candidates" select="$geometry[@Id != $elt/@id]"/>

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    <func:result select="$candidates[(@Id = $groups/@id and (func:intersect($g, .) = 9)) or &#10;                          (not(@Id = $groups/@id) and (func:intersect($g, .) &gt; 0 ))]"/>

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  </func:function>

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  <xsl:variable name="hmi_pages_descs" select="$parsed_widgets/widget[@type = 'Page']"/>

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  <xsl:variable name="hmi_pages" select="$hmi_elements[@id = $hmi_pages_descs/@id]"/>

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  <xsl:variable name="default_page">

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    <xsl:choose>

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      <xsl:when test="count($hmi_pages) &gt; 1">

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        <xsl:choose>

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          <xsl:when test="$hmi_pages_descs/arg[1]/@value = 'Home'">

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            <xsl:text>Home</xsl:text>

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          </xsl:when>

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          <xsl:otherwise>

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            <xsl:message terminate="yes">No Home page defined!</xsl:message>

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          </xsl:otherwise>

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        </xsl:choose>

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      </xsl:when>

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      <xsl:when test="count($hmi_pages) = 0">

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        <xsl:message terminate="yes">No page defined!</xsl:message>

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      </xsl:when>

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      <xsl:otherwise>

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        <xsl:value-of select="func:widget($hmi_pages/@id)/arg[1]/@value"/>

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      </xsl:otherwise>

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    </xsl:choose>

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  </xsl:variable>

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  <func:function name="func:refered_elements">

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    <xsl:param name="elems"/>

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    <xsl:variable name="descend" select="$elems/descendant-or-self::svg:*"/>

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    <xsl:variable name="clones" select="$descend[self::svg:use]"/>

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    <xsl:variable name="originals" select="//svg:*[concat('#',@id) = $clones/@xlink:href]"/>

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    <xsl:choose>

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      <xsl:when test="$originals">

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        <func:result select="$descend | func:refered_elements($originals)"/>

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      </xsl:when>

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      <xsl:otherwise>

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        <func:result select="$descend"/>

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      </xsl:otherwise>

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    </xsl:choose>

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  </func:function>

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  <func:function name="func:all_related_elements">

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    <xsl:param name="page"/>

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    <xsl:variable name="page_overlapping_geometry" select="func:overlapping_geometry($page)"/>

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    <xsl:variable name="page_overlapping_elements" select="//svg:*[@id = $page_overlapping_geometry/@Id]"/>

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    <xsl:variable name="page_sub_elements" select="func:refered_elements($page | $page_overlapping_elements)"/>

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    <func:result select="$page_sub_elements"/>

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  </func:function>

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  <func:function name="func:required_elements">

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    <xsl:param name="pages"/>

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    <xsl:choose>

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      <xsl:when test="$pages">

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        <func:result select="func:all_related_elements($pages[1])&#10;                      | func:required_elements($pages[position()!=1])"/>

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      </xsl:when>

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      <xsl:otherwise>

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        <func:result select="/.."/>

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      </xsl:otherwise>

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    </xsl:choose>

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  </func:function>

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  <xsl:variable name="required_elements" select="//svg:defs/descendant-or-self::svg:*&#10;       | func:required_elements($hmi_pages)/ancestor-or-self::svg:*"/>

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  <xsl:variable name="discardable_elements" select="//svg:*[not(@id = $required_elements/@id)]"/>

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  <func:function name="func:sumarized_elements">

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    <xsl:param name="elements"/>

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    <xsl:variable name="short_list" select="$elements[not(ancestor::*/@id = $elements/@id)]"/>

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    <xsl:variable name="filled_groups" select="$short_list/parent::svg:*[&#10;        not(descendant::*[&#10;            not(self::svg:g) and&#10;            not(@id = $discardable_elements/@id) and&#10;            not(@id = $short_list/descendant-or-self::*[not(self::svg:g)]/@id)&#10;        ])]"/>

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    <xsl:variable name="groups_to_add" select="$filled_groups[not(ancestor::*/@id = $filled_groups/@id)]"/>

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    <func:result select="$groups_to_add | $short_list[not(ancestor::svg:g/@id = $filled_groups/@id)]"/>

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  </func:function>

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  <func:function name="func:detachable_elements">

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    <xsl:param name="pages"/>

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    <xsl:choose>

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      <xsl:when test="$pages">

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        <func:result select="func:sumarized_elements(func:all_related_elements($pages[1]))&#10;                      | func:detachable_elements($pages[position()!=1])"/>

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      </xsl:when>

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      <xsl:otherwise>

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        <func:result select="/.."/>

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      </xsl:otherwise>

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    </xsl:choose>

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  </func:function>

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  <xsl:variable name="_detachable_elements" select="func:detachable_elements($hmi_pages)"/>

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  <xsl:variable name="detachable_elements" select="$_detachable_elements[not(ancestor::*/@id = $_detachable_elements/@id)]"/>

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  <xsl:variable name="forEach_widgets_ids" select="$parsed_widgets/widget[@type = 'ForEach']/@id"/>

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  <xsl:variable name="forEach_widgets" select="$hmi_elements[@id = $forEach_widgets_ids]"/>

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  <xsl:variable name="in_forEach_widget_ids" select="func:refered_elements($forEach_widgets)[not(@id = $forEach_widgets_ids)]/@id"/>

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  <xsl:template mode="page_desc" match="svg:*">

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    <xsl:variable name="desc" select="func:widget(@id)"/>

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    <xsl:variable name="page" select="."/>

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    <xsl:variable name="p" select="$geometry[@Id = $page/@id]"/>

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    <xsl:variable name="page_all_elements" select="func:all_related_elements($page)"/>

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    <xsl:variable name="all_page_widgets" select="$hmi_elements[@id = $page_all_elements/@id and @id != $page/@id and not(@id=$in_forEach_widget_ids)]"/>

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    <xsl:variable name="page_relative_widgets" select="$all_page_widgets[func:is_descendant_path(func:widget(@id)/path/@value, $desc/path/@value)]"/>

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    <xsl:variable name="required_detachables" select="func:sumarized_elements($page_all_elements)/&#10;           ancestor-or-self::*[@id = $detachable_elements/@id]"/>

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    <xsl:text>  "</xsl:text>

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    <xsl:value-of select="$desc/arg[1]/@value"/>

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    <xsl:text>": {

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</xsl:text>

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    <xsl:text>    widget: hmi_widgets["</xsl:text>

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    <xsl:value-of select="@id"/>

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    <xsl:text>"],

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</xsl:text>

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    <xsl:text>    bbox: [</xsl:text>

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    <xsl:value-of select="$p/@x"/>

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    <xsl:text>, </xsl:text>

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    <xsl:value-of select="$p/@y"/>

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    <xsl:text>, </xsl:text>

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    <xsl:value-of select="$p/@w"/>

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    <xsl:text>, </xsl:text>

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    <xsl:value-of select="$p/@h"/>

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    <xsl:text>],

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</xsl:text>

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    <xsl:if test="$desc/path/@value">

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      <xsl:if test="count($desc/path/@index)=0">

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        <xsl:message terminate="no">

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          <xsl:text>Page id="</xsl:text>

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          <xsl:value-of select="$page/@id"/>

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          <xsl:text>" : No match for path "</xsl:text>

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          <xsl:value-of select="$desc/path/@value"/>

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          <xsl:text>" in HMI tree</xsl:text>

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        </xsl:message>

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      </xsl:if>

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      <xsl:text>    page_index: </xsl:text>

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      <xsl:value-of select="$desc/path/@index"/>

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      <xsl:text>,

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</xsl:text>

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    </xsl:if>

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    <xsl:text>    relative_widgets: [

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</xsl:text>

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    <xsl:for-each select="$page_relative_widgets">

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      <xsl:text>        hmi_widgets["</xsl:text>

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      <xsl:value-of select="@id"/>

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      <xsl:text>"]</xsl:text>

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      <xsl:if test="position()!=last()">

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        <xsl:text>,</xsl:text>

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      </xsl:if>

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      <xsl:text>

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</xsl:text>

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    </xsl:for-each>

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    <xsl:text>    ],

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</xsl:text>

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    <xsl:text>    absolute_widgets: [

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</xsl:text>

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    <xsl:for-each select="$all_page_widgets[not(@id = $page_relative_widgets/@id)]">

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      <xsl:text>        hmi_widgets["</xsl:text>

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      <xsl:value-of select="@id"/>

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      <xsl:text>"]</xsl:text>

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      <xsl:if test="position()!=last()">

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        <xsl:text>,</xsl:text>

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      </xsl:if>

   394

      <xsl:text>

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</xsl:text>

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    </xsl:for-each>

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    <xsl:text>    ],

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</xsl:text>

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    <xsl:text>    required_detachables: {

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</xsl:text>

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    <xsl:for-each select="$required_detachables">

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      <xsl:text>        "</xsl:text>

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      <xsl:value-of select="@id"/>

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      <xsl:text>": detachable_elements["</xsl:text>

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      <xsl:value-of select="@id"/>

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      <xsl:text>"]</xsl:text>

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      <xsl:if test="position()!=last()">

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        <xsl:text>,</xsl:text>

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      </xsl:if>

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      <xsl:text>

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</xsl:text>

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    </xsl:for-each>

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    <xsl:text>    }

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</xsl:text>

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    <xsl:text>  }</xsl:text>

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    <xsl:if test="position()!=last()">

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      <xsl:text>,</xsl:text>

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    </xsl:if>

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    <xsl:text>

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</xsl:text>

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  </xsl:template>

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  <xsl:template name="debug_detachables">

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    <xsl:text>DETACHABLES:

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</xsl:text>

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    <xsl:for-each select="$detachable_elements">

   426

      <xsl:text> </xsl:text>

   427

      <xsl:value-of select="@id"/>

   428

      <xsl:text>

   429

</xsl:text>

   430

    </xsl:for-each>

   431

    <xsl:text>In Foreach:

   432

</xsl:text>

   433

    <xsl:for-each select="$in_forEach_widget_ids">

   434

      <xsl:text> </xsl:text>

   435

      <xsl:value-of select="."/>

   436

      <xsl:text>

   437

</xsl:text>

   438

    </xsl:for-each>

   439

  </xsl:template>

   440

  <xsl:template mode="inline_svg" match="@* | node()">

   441

    <xsl:if test="not(@id = $discardable_elements/@id)">

   442

      <xsl:copy>

   443

        <xsl:apply-templates mode="inline_svg" select="@* | node()"/>

   444

      </xsl:copy>

   445

    </xsl:if>

   446

  </xsl:template>

   447

  <xsl:template mode="inline_svg" match="svg:svg/@width"/>

   448

  <xsl:template mode="inline_svg" match="svg:svg/@height"/>

   449

  <xsl:template xmlns="http://www.w3.org/2000/svg" mode="inline_svg" match="svg:svg">

   450

    <svg>

   451

      <xsl:attribute name="preserveAspectRatio">

   452

        <xsl:text>none</xsl:text>

   453

      </xsl:attribute>

   454

      <xsl:attribute name="height">

   455

        <xsl:text>100vh</xsl:text>

   456

      </xsl:attribute>

   457

      <xsl:attribute name="width">

   458

        <xsl:text>100vw</xsl:text>

   459

      </xsl:attribute>

   460

      <xsl:apply-templates mode="inline_svg" select="@* | node()"/>

   461

    </svg>

   462

  </xsl:template>

   463

  <xsl:template mode="inline_svg" match="svg:svg[@viewBox!=concat('0 0 ', @width, ' ', @height)]">

   464

    <xsl:message terminate="yes">

   465

      <xsl:text>ViewBox settings other than X=0, Y=0 and Scale=1 are not supported</xsl:text>

   466

    </xsl:message>

   467

  </xsl:template>

   468

  <xsl:template mode="inline_svg" match="sodipodi:namedview[@units!='px' or @inkscape:document-units!='px']">

   469

    <xsl:message terminate="yes">

   470

      <xsl:text>All units must be set to "px" in Inkscape's document properties</xsl:text>

   471

    </xsl:message>

   472

  </xsl:template>

   473

  <xsl:variable name="to_unlink" select="$hmi_elements[not(@id = $hmi_pages)]//svg:use"/>

   474

  <xsl:template xmlns="http://www.w3.org/2000/svg" mode="inline_svg" match="svg:use">

   475

    <xsl:choose>

   476

      <xsl:when test="@id = $to_unlink/@id">

   477

        <xsl:call-template name="unlink_clone"/>

   478

      </xsl:when>

   479

      <xsl:otherwise>

   480

        <xsl:copy>

   481

          <xsl:apply-templates mode="inline_svg" select="@* | node()"/>

   482

        </xsl:copy>

   483

      </xsl:otherwise>

   484

    </xsl:choose>

   485

  </xsl:template>

   486

  <xsl:variable name="_excluded_use_attrs">

   487

    <name>

   488

      <xsl:text>href</xsl:text>

   489

    </name>

   490

    <name>

   491

      <xsl:text>width</xsl:text>

   492

    </name>

   493

    <name>