sw: paragraph styles: add ODT filter for a linked character style

And the same in the other direction: link a para style from a char
style.

With this, the ODT filter is on par with the DOCX one for this feature.

Change-Id: Idd994b933672ab47a5f87a75c92abc137d3c73b2
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/122753
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Tested-by: Jenkins

3 files changed, 40 insertions, 0 deletions

diff --git a/xmloff/source/style/prstylei.cxx b/xmloff/source/style/prstylei.cxx
index e9ca87595f2b..5cd856b209e8 100644
--- a/xmloff/source/style/prstylei.cxx
+++ b/xmloff/source/style/prstylei.cxx
@@ -509,6 +509,30 @@ void XMLPropStyleContext::Finish( bool bOverwrite )
         }
     }
 
+    // Connect linked style.
+    OUString aLinked(GetLinked());
+    if (!aLinked.isEmpty())
+    {
+        if (GetFamily() == XmlStyleFamily::TEXT_PARAGRAPH)
+        {
+            aLinked = GetImport().GetStyleDisplayName(XmlStyleFamily::TEXT_TEXT, aLinked);
+        }
+        else if (GetFamily() == XmlStyleFamily::TEXT_TEXT)
+        {
+            aLinked = GetImport().GetStyleDisplayName(XmlStyleFamily::TEXT_PARAGRAPH, aLinked);
+        }
+    }
+    if (!aLinked.isEmpty() && xPropSetInfo->hasPropertyByName("LinkStyle"))
+    {
+        uno::Any aAny = xPropSet->getPropertyValue("LinkStyle");
+        OUString aCurrentLinked;
+        aAny >>= aCurrentLinked;
+        if (aCurrentLinked != aLinked)
+        {
+            xPropSet->setPropertyValue("LinkStyle", uno::Any(aLinked));
+        }
+    }
+
     if ( xPropSetInfo->hasPropertyByName( "Hidden" ) )
     {
         xPropSet->setPropertyValue( "Hidden", uno::makeAny( IsHidden( ) ) );
diff --git a/xmloff/source/style/styleexp.cxx b/xmloff/source/style/styleexp.cxx
index 2c628ffbda4d..1a3a81f10c95 100644
--- a/xmloff/source/style/styleexp.cxx
+++ b/xmloff/source/style/styleexp.cxx
@@ -237,6 +237,19 @@ bool XMLStyleExport::exportStyle(
         }
     }
 
+    // style:linked-style-name="..." (SW paragraph and character styles only)
+    if (xPropSetInfo->hasPropertyByName("LinkStyle"))
+    {
+        aAny = xPropSet->getPropertyValue("LinkStyle");
+        OUString sLinkName;
+        aAny >>= sLinkName;
+        if (!sLinkName.isEmpty())
+        {
+            GetExport().AddAttribute(XML_NAMESPACE_LO_EXT, XML_LINKED_STYLE_NAME,
+                                     GetExport().EncodeStyleName(sLinkName));
+        }
+    }
+
     // style:auto-update="..." (SW only)
     if( xPropSetInfo->hasPropertyByName( gsIsAutoUpdate ) )
     {
diff --git a/xmloff/source/style/xmlstyle.cxx b/xmloff/source/style/xmlstyle.cxx
index 38ec932fe132..00afedf82a39 100644
--- a/xmloff/source/style/xmlstyle.cxx
+++ b/xmloff/source/style/xmlstyle.cxx
@@ -88,6 +88,9 @@ void SvXMLStyleContext::SetAttribute( sal_Int32 nElement,
         case XML_ELEMENT(STYLE, XML_NEXT_STYLE_NAME):
             maFollow = rValue;
             break;
+        case XML_ELEMENT(LO_EXT, XML_LINKED_STYLE_NAME):
+            maLinked = rValue;
+            break;
         case XML_ELEMENT(STYLE, XML_HIDDEN):
             mbHidden = rValue.toBoolean();
             break;