implement root support for ooxml math export

starmath/inc/node.hxx

@@ -764,7 +764,7 @@ public:
  * 0: Argument (optional)<BR>
  * 1: Symbol (instance of SmRootSymbolNode)<BR>
  * 2: Body<BR>
- * Where argument is optinal and may be NULL.
+ * Where argument is optional and may be NULL.
  */
 class SmRootNode : public SmStructureNode
 {
@@ -783,6 +783,13 @@ public:
     virtual void Arrange(const OutputDevice &rDev, const SmFormat &rFormat);
     void CreateTextFromNode(String &rText);
     void Accept(SmVisitor* pVisitor);
+
+    SmNode* Argument();
+    const SmNode* Argument() const;
+    SmRootSymbolNode* Symbol();
+    const SmRootSymbolNode* Symbol() const;
+    SmNode* Body();
+    const SmNode* Body() const;
 };
 
 
@@ -1221,6 +1228,36 @@ public:
 
 ////////////////////////////////////////////////////////////////////////////////
 
+
+inline SmNode* SmRootNode::Argument()
+{
+    OSL_ASSERT( GetNumSubNodes() > 0 );
+    return GetSubNode( 0 );
+}
+inline const SmNode* SmRootNode::Argument() const
+{
+    return const_cast< SmRootNode* >( this )->Argument();
+}
+inline SmRootSymbolNode* SmRootNode::Symbol()
+{
+    OSL_ASSERT( GetSubNode( 0 )->GetType() == NROOTSYMBOL );
+    return static_cast< SmRootSymbolNode* >( GetSubNode( 1 ));
+}
+inline const SmRootSymbolNode* SmRootNode::Symbol() const
+{
+    return const_cast< SmRootNode* >( this )->Symbol();
+}
+inline SmNode* SmRootNode::Body()
+{
+    OSL_ASSERT( GetNumSubNodes() > 2 );
+    return GetSubNode( 2 );
+}
+inline const SmNode* SmRootNode::Body() const
+{
+    return const_cast< SmRootNode* >( this )->Body();
+}
+
+
 #endif
 
 

starmath/source/ooxml.cxx

@@ -120,10 +120,10 @@ void SmOoxml::HandleNode(SmNode *pNode,int nLevel)
         case NBINVER:
             HandleFractions(pNode,nLevel);
             break;
-#if 0
         case NROOT:
-            HandleRoot(pNode,nLevel);
+            HandleRoot( static_cast< SmRootNode* >( pNode ),nLevel);
             break;
+#if 0
         case NSPECIAL:
             {
             SmTextNode *pText=(SmTextNode *)pNode;
@@ -458,4 +458,26 @@ void SmOoxml::HandleBinaryOperation(SmNode *pNode,int nLevel)
     }
 }
 
+void SmOoxml::HandleRoot(SmRootNode *pNode,int nLevel)
+{
+    m_pSerializer->startElementNS( XML_m, XML_rad, FSEND );
+    if( SmNode* argument = pNode->Argument())
+    {
+        m_pSerializer->startElementNS( XML_m, XML_deg, FSEND );
+        HandleAllSubNodes( argument, nLevel );
+        m_pSerializer->endElementNS( XML_m, XML_deg );
+    }
+    else
+    {
+        m_pSerializer->startElementNS( XML_m, XML_radPr, FSEND );
+        m_pSerializer->singleElementNS( XML_m, XML_degHide, FSNS( XML_m, XML_val ), "1", FSEND );
+        m_pSerializer->endElementNS( XML_m, XML_radPr );
+        m_pSerializer->singleElementNS( XML_m, XML_deg, FSEND ); // empty but present
+    }
+    m_pSerializer->startElementNS( XML_m, XML_e, FSEND );
+    HandleAllSubNodes( pNode->Body(), nLevel );
+    m_pSerializer->endElementNS( XML_m, XML_e );
+    m_pSerializer->endElementNS( XML_m, XML_rad );
+}
+
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

starmath/source/ooxml.hxx

@@ -51,6 +51,7 @@ private:
     void HandleMath(SmNode *pNode,int nLevel);
     void HandleFractions( SmNode *pNode,int nLevel, const char* type = NULL );
     void HandleBinaryOperation(SmNode *pNode,int nLevel);
+    void HandleRoot(SmRootNode *pNode,int nLevel);
     String str;
     SmNode *pTree;
     ::sax_fastparser::FSHelperPtr m_pSerializer;