Line data    Source code

       1             : 
       2             : /* Copyright (c) 2007-2013, 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 EQSERVER_COMPOUNDVISITOR_H
      19             : #define EQSERVER_COMPOUNDVISITOR_H
      20             : 
      21             : #include "types.h"
      22             : #include "visitorResult.h" // enum
      23             : 
      24             : namespace eq
      25             : {
      26             : namespace server
      27             : {
      28             : /** A visitor to traverse a non-const compound tree. */
      29             : class CompoundVisitor
      30             : {
      31             : public:
      32             :     /** Constructs a new CompoundVisitor. */
      33       11172 :     CompoundVisitor() {}
      34             :     /** Destruct the CompoundVisitor */
      35       11172 :     virtual ~CompoundVisitor() {}
      36             :     /** Visit a non-leaf compound on the down traversal. */
      37        5454 :     virtual VisitorResult visitPre(Compound* compound)
      38             :     {
      39        5454 :         return visit(compound);
      40             :     }
      41             :     /** Visit a leaf compound. */
      42        3980 :     virtual VisitorResult visitLeaf(Compound* compound)
      43             :     {
      44        3980 :         return visit(compound);
      45             :     }
      46             :     /** Visit a non-leaf compound on the up traversal. */
      47        3074 :     virtual VisitorResult visitPost(Compound* compound)
      48             :     {
      49        3074 :         return visitPost(static_cast<const Compound*>(compound));
      50             :     }
      51             : 
      52             :     /** Visit every compound on the down traversal. */
      53        2348 :     virtual VisitorResult visit(Compound* compound)
      54             :     {
      55        2348 :         return visit(static_cast<const Compound*>(compound));
      56             :     }
      57             : 
      58             :     /** Visit a non-leaf compound on the down traversal. */
      59           0 :     virtual VisitorResult visitPre(const Compound* compound)
      60             :     {
      61           0 :         return visit(compound);
      62             :     }
      63             :     /** Visit a leaf compound. */
      64           0 :     virtual VisitorResult visitLeaf(const Compound* compound)
      65             :     {
      66           0 :         return visit(compound);
      67             :     }
      68             :     /** Visit a non-leaf compound on the up traversal. */
      69        3074 :     virtual VisitorResult visitPost(const Compound*)
      70             :     {
      71        3074 :         return TRAVERSE_CONTINUE;
      72             :     }
      73             : 
      74             :     /** Visit every compound on the down traversal. */
      75        2348 :     virtual VisitorResult visit(const Compound*) { return TRAVERSE_CONTINUE; }
      76             : };
      77             : }
      78             : }
      79             : #endif // EQSERVER_COMPOUNDVISITOR_H