Line data    Source code

       1             : 
       2             : /* Copyright (c) 2010-2013, Stefan Eilemann <eile@equalizergraphics.com>
       3             :  *
       4             :  * This library is free software; you can redistribute it and/or modify it under
       5             :  * the terms of the GNU Lesser General Public License version 2.1 as published
       6             :  * by the Free Software Foundation.
       7             :  *
       8             :  * This library is distributed in the hope that it will be useful, but WITHOUT
       9             :  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
      10             :  * FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
      11             :  * details.
      12             :  *
      13             :  * You should have received a copy of the GNU Lesser General Public License
      14             :  * along with this library; if not, write to the Free Software Foundation, Inc.,
      15             :  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
      16             :  */
      17             : 
      18             : #ifndef EQFABRIC_LEAFVISITOR_H
      19             : #define EQFABRIC_LEAFVISITOR_H
      20             : 
      21             : #include <eq/fabric/types.h>
      22             : 
      23             : namespace eq
      24             : {
      25             : namespace fabric
      26             : {
      27             : /** A visitor to traverse leaf nodes of a graph. */
      28             : template <class T>
      29             : class LeafVisitor
      30             : {
      31             : public:
      32             :     /** Constructs a new leaf visitor. @version 1.0 */
      33       44084 :     LeafVisitor() {}
      34             :     /** Destruct the leaf visitor. @version 1.0 */
      35       44084 :     virtual ~LeafVisitor() {}
      36             :     /** Visit a leaf node. @version 1.0 */
      37       93069 :     virtual VisitorResult visit(T* leaf)
      38             :     {
      39       93069 :         return visit(static_cast<const T*>(leaf));
      40             :     }
      41             : 
      42             :     /** Visit a leaf node during a const traversal. @version 1.0 */
      43       77689 :     virtual VisitorResult visit(const T*) { return TRAVERSE_CONTINUE; }
      44             : };
      45             : }
      46             : }
      47             : #endif // EQFABRIC_LEAFVISITOR_H