Remove ancient trunk folder from svn repository

[synfig.git] / synfig-core / src / synfig / valuenode_subtract.h

diff --git a/synfig-core/src/synfig/valuenode_subtract.h b/synfig-core/src/synfig/valuenode_subtract.h
new file mode 100644 (file)
index 0000000..6c446d6
--- /dev/null
+++ b/synfig-core/src/synfig/valuenode_subtract.h
@@ -0,0 +1,82 @@
+/* === S Y N F I G ========================================================= */
+/*!    \file valuenode_subtract.h
+**     \brief Header file for implementation of the "Subtract" valuenode conversion.
+**
+**     $Id$
+**
+**     \legal
+**     Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**     Copyright (c) 2007, 2008 Chris Moore
+**
+**     This package is free software; you can redistribute it and/or
+**     modify it under the terms of the GNU General Public License as
+**     published by the Free Software Foundation; either version 2 of
+**     the License, or (at your option) any later version.
+**
+**     This package is distributed in the hope that it will be useful,
+**     but WITHOUT ANY WARRANTY; without even the implied warranty of
+**     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+**     General Public License for more details.
+**     \endlegal
+*/
+/* ========================================================================= */
+
+/* === S T A R T =========================================================== */
+
+#ifndef __SYNFIG_VALUENODE_SUBTRACT_H
+#define __SYNFIG_VALUENODE_SUBTRACT_H
+
+/* === H E A D E R S ======================================================= */
+
+#include "valuenode.h"
+
+/* === M A C R O S ========================================================= */
+
+/* === C L A S S E S & S T R U C T S ======================================= */
+
+namespace synfig {
+
+struct ValueNode_Subtract : public LinkableValueNode
+{
+       typedef etl::handle<ValueNode_Subtract> Handle;
+       typedef etl::handle<const ValueNode_Subtract> ConstHandle;
+
+protected:
+       ValueNode_Subtract(const ValueBase &value);
+
+private:
+       ValueNode::RHandle ref_a;
+       ValueNode::RHandle ref_b;
+       ValueNode::RHandle scalar;
+
+public:
+       LinkableValueNode* create_new()const;
+       static ValueNode_Subtract* create(const ValueBase &value=ValueBase());
+       virtual ~ValueNode_Subtract();
+       virtual ValueBase operator()(Time t)const;
+       virtual bool set_link_vfunc(int i,ValueNode::Handle x);
+       virtual ValueNode::LooseHandle get_link_vfunc(int i)const;
+       virtual int link_count()const;
+       virtual String link_local_name(int i)const;
+       virtual String link_name(int i)const;
+       virtual int get_link_index_from_name(const String &name)const;
+       virtual String get_name()const;
+       virtual String get_local_name()const;
+       static bool check_type(ValueBase::Type type);
+
+       //! Gets the left-hand-side value_node
+       ValueNode::Handle get_lhs()const { return ref_a; }
+
+       //! Gets the right-hand-side value_node
+       ValueNode::Handle get_rhs()const { return ref_b; }
+
+       //! Gets the scalar value_node
+       ValueNode::Handle get_scalar()const { return scalar; }
+
+}; // END of class ValueNode_Subtract
+
+}; // END of namespace synfig
+
+/* === E N D =============================================================== */
+
+#endif