fdo#53472 Created Dynamic Integral Node classes. Integrals size made dependent on body.

Change-Id: I0348155f2429cf7dd3cbe7d71f333879ec6de980
Reviewed-on: https://gerrit.libreoffice.org/8569
Reviewed-by: Norbert Thiebaud <nthiebaud@gmail.com>
Tested-by: Norbert Thiebaud <nthiebaud@gmail.com>

1 files changed, 81 insertions, 1 deletions

diff --git a/starmath/inc/node.hxx b/starmath/inc/node.hxx
index c15ab259afbe..ab27af014df9 100644
--- a/starmath/inc/node.hxx
+++ b/starmath/inc/node.hxx
@@ -73,7 +73,7 @@ enum SmNodeType
 /*10*/ NBINDIAGONAL,   NSUBSUP,        NMATRIX,        NPLACE,         NTEXT,
 /*15*/ NSPECIAL,       NGLYPH_SPECIAL, NMATH,          NBLANK,         NERROR,
 /*20*/ NLINE,          NEXPRESSION,    NPOLYLINE,      NROOT,          NROOTSYMBOL,
-/*25*/ NRECTANGLE,     NVERTICAL_BRACE, NMATHIDENT
+/*25*/ NRECTANGLE,  NVERTICAL_BRACE, NMATHIDENT,  NDYNINT, NDYNINTSYMBOL
 };
 
 
@@ -618,6 +618,30 @@ public:
     void Accept(SmVisitor* pVisitor);
 };
 
+////////////////////////////////////////////////////////////////////////////////
+
+/** Dynamic Integral symbol node
+ *
+ * Node for drawing dynamicall sized integral symbols.
+ *
+ * TODO: It might be created a parent class SmDynamicSizedNode
+        (for both dynamic integrals, roots and other dynamic symbols)
+
+ */
+class SmDynIntegralSymbolNode : public SmMathSymbolNode
+{
+
+
+public:
+    SmDynIntegralSymbolNode(const SmToken &rNodeToken)
+    :   SmMathSymbolNode(NDYNINTSYMBOL, rNodeToken)
+    {}
+
+    virtual void AdaptToY(const OutputDevice &rDev, sal_uLong nHeight);
+
+    void Accept(SmVisitor* pVisitor);
+};
+
 
 
 
@@ -806,6 +830,40 @@ public:
 };
 
 
+////////////////////////////////////////////////////////////////////////////////
+
+/** Dynamic Integral node
+ *
+ * Used to create Dynamically sized integrals
+ *
+ * Children:<BR>
+ * 0: Symbol (instance of DynIntegralSymbolNode)<BR>
+ * 1: Body<BR>
+ */
+class SmDynIntegralNode : public SmStructureNode
+{
+protected:
+    void   GetHeightVerOffset(const SmRect &rRect,
+                              long &rHeight, long &rVerOffset) const;
+
+public:
+    SmDynIntegralNode(const SmToken &rNodeToken)
+    :   SmStructureNode(NDYNINT, rNodeToken)
+    {
+        SetNumSubNodes(2);
+    }
+
+    virtual void Arrange(const OutputDevice &rDev, const SmFormat &rFormat);
+    void CreateTextFromNode(OUString &rText);
+    void Accept(SmVisitor* pVisitor);
+
+    SmDynIntegralSymbolNode* Symbol();
+    const SmDynIntegralSymbolNode* Symbol() const;
+    SmNode* Body();
+    const SmNode* Body() const;
+};
+
+
 
 
 /** Binary horizontial node
@@ -1293,6 +1351,28 @@ inline const SmNode* SmRootNode::Body() const
     return const_cast< SmRootNode* >( this )->Body();
 }
 
+
+
+inline SmDynIntegralSymbolNode* SmDynIntegralNode::Symbol()
+{
+    OSL_ASSERT( GetNumSubNodes() > 0 && GetSubNode( 0 )->GetType() == NDYNINTSYMBOL );
+    return static_cast< SmDynIntegralSymbolNode* >( GetSubNode( 0 ));
+}
+inline const SmDynIntegralSymbolNode* SmDynIntegralNode::Symbol() const
+{
+    return const_cast< SmDynIntegralNode* >( this )->Symbol();
+}
+inline SmNode* SmDynIntegralNode::Body()
+{
+    OSL_ASSERT( GetNumSubNodes() > 1 );
+    return GetSubNode( 1 );
+}
+inline const SmNode* SmDynIntegralNode::Body() const
+{
+    return const_cast< SmDynIntegralNode* >( this )->Body();
+}
+
+
 inline SmMathSymbolNode* SmBinHorNode::Symbol()
 {
     OSL_ASSERT( GetNumSubNodes() > 1 && GetSubNode( 1 )->GetType() == NMATH );