LCOV - code coverage report
Current view: top level - svx/source/inc - treevisitor.hxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 0 32 0.0 %
Date: 2012-08-25 Functions: 0 4 0.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 0 26 0.0 %

           Branch data     Line data    Source code
       1                 :            : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 :            : /*
       3                 :            :  * This file is part of the LibreOffice project.
       4                 :            :  *
       5                 :            :  * This Source Code Form is subject to the terms of the Mozilla Public
       6                 :            :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7                 :            :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8                 :            :  *
       9                 :            :  * This file incorporates work covered by the following license notice:
      10                 :            :  *
      11                 :            :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12                 :            :  *   contributor license agreements. See the NOTICE file distributed
      13                 :            :  *   with this work for additional information regarding copyright
      14                 :            :  *   ownership. The ASF licenses this file to you under the Apache
      15                 :            :  *   License, Version 2.0 (the "License"); you may not use this file
      16                 :            :  *   except in compliance with the License. You may obtain a copy of
      17                 :            :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18                 :            :  */
      19                 :            : 
      20                 :            : #ifndef SVX_TREE_VISITOR_HXX
      21                 :            : #define SVX_TREE_VISITOR_HXX
      22                 :            : 
      23                 :            : #include <stack>
      24                 :            : 
      25                 :            : template< class ELEMENT, class NODEINFO, class PROCESSOR >
      26         [ #  # ]:          0 : class TreeVisitor
      27                 :            : {
      28                 :            : public:
      29                 :          0 :     TreeVisitor( NODEINFO _nodeInfo )
      30                 :            :         :m_visitedRoot( false )
      31                 :            :         ,m_root()
      32                 :            :         ,m_current()
      33 [ #  # ][ #  # ]:          0 :         ,m_nodeInfo( _nodeInfo )
         [ #  # ][ #  # ]
      34                 :            :     {
      35                 :          0 :     }
      36                 :            : 
      37                 :          0 :     void    process( const ELEMENT& _root, PROCESSOR& _processor )
      38                 :            :     {
      39                 :          0 :         m_root = _root;
      40                 :          0 :         m_visitedRoot = false;
      41                 :            : 
      42         [ #  # ]:          0 :         while ( do_step() )
      43                 :          0 :             _processor.process( m_current );
      44                 :          0 :     }
      45                 :            : 
      46                 :            : private:
      47                 :            :     bool    do_step();
      48                 :            : 
      49                 :            : private:
      50                 :            :     bool            m_visitedRoot;
      51                 :            :     ELEMENT         m_root;
      52                 :            :     ELEMENT         m_current;
      53                 :            :     const NODEINFO  m_nodeInfo;
      54                 :            : 
      55                 :            :     ::std::stack< size_t >  m_pathToCurrent;
      56                 :            :     ::std::stack< ELEMENT > m_currentAncestors;
      57                 :            : };
      58                 :            : 
      59                 :            : template< class ELEMENT, class NODEINFO, class PROCESSOR >
      60                 :          0 : bool TreeVisitor< ELEMENT, NODEINFO, PROCESSOR >::do_step()
      61                 :            : {
      62         [ #  # ]:          0 :     if ( !m_visitedRoot )
      63                 :            :     {
      64                 :          0 :         m_current = m_root;
      65                 :          0 :         m_visitedRoot = true;
      66                 :          0 :         return true;
      67                 :            :     }
      68                 :            : 
      69                 :            :     // can we step down from the current node?
      70                 :          0 :     size_t childCount = m_nodeInfo.childCount( m_current );
      71         [ #  # ]:          0 :     if ( childCount )
      72                 :            :     {
      73                 :          0 :         m_currentAncestors.push( m_current );
      74         [ #  # ]:          0 :         m_current = m_nodeInfo.getChild( m_current, 0 );
      75         [ #  # ]:          0 :         m_pathToCurrent.push( 0 );
      76                 :          0 :         return true;
      77                 :            :     }
      78                 :            : 
      79                 :            :     // is there a right sibling of the current node?
      80         [ #  # ]:          0 :     while ( !m_pathToCurrent.empty() )
      81                 :            :     {
      82                 :          0 :         const ELEMENT& currentParent = m_currentAncestors.top();
      83                 :          0 :         childCount = m_nodeInfo.childCount( currentParent );
      84                 :            : 
      85                 :          0 :         size_t currentChildPos = m_pathToCurrent.top();
      86         [ #  # ]:          0 :         if ( ++currentChildPos < childCount )
      87                 :            :         {
      88                 :            :             // yes there is
      89                 :          0 :             m_pathToCurrent.top() = currentChildPos;
      90         [ #  # ]:          0 :             m_current = m_nodeInfo.getChild( currentParent, currentChildPos );
      91                 :          0 :             return true;
      92                 :            :         }
      93                 :            : 
      94                 :            :         // no there isn't => step up
      95                 :          0 :         m_currentAncestors.pop();
      96                 :          0 :         m_pathToCurrent.pop();
      97                 :            :     }
      98                 :            : 
      99                 :          0 :     return false;
     100                 :            : }
     101                 :            : 
     102                 :            : #endif // SVX_TREE_VISITOR_HXX
     103                 :            : 
     104                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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