LCOV - code coverage report
Current view: top level - comphelper/source/container - container.cxx (source / functions) Hit Total Coverage
Test: commit 10e77ab3ff6f4314137acd6e2702a6e5c1ce1fae Lines: 0 51 0.0 %
Date: 2014-11-03 Functions: 0 4 0.0 %
Legend: Lines: hit not hit

          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             : #include <com/sun/star/uno/XInterface.hpp>
      21             : #include <com/sun/star/container/XIndexAccess.hpp>
      22             : #include <com/sun/star/container/XChild.hpp>
      23             : #include <comphelper/container.hxx>
      24             : #include <osl/diagnose.h>
      25             : 
      26             : 
      27             : namespace comphelper
      28             : {
      29             : 
      30             : 
      31             : 
      32           0 : IndexAccessIterator::IndexAccessIterator(::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface> xStartingPoint)
      33             :     :m_xStartingPoint(xStartingPoint)
      34           0 :     ,m_xCurrentObject(NULL)
      35             : {
      36             :     OSL_ENSURE(m_xStartingPoint.is(), "IndexAccessIterator::IndexAccessIterator : no starting point !");
      37           0 : }
      38             : 
      39           0 : IndexAccessIterator::~IndexAccessIterator() {}
      40             : 
      41             : 
      42           0 : ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface> IndexAccessIterator::Next()
      43             : {
      44           0 :     bool bCheckingStartingPoint = !m_xCurrentObject.is();
      45             :         // Is the current node the starting point?
      46           0 :     bool bAlreadyCheckedCurrent = m_xCurrentObject.is();
      47             :         // Have I already tested the current node through ShouldHandleElement?
      48           0 :     if (!m_xCurrentObject.is())
      49           0 :         m_xCurrentObject = m_xStartingPoint;
      50             : 
      51           0 :     ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface> xSearchLoop( m_xCurrentObject);
      52           0 :     bool bHasMoreToSearch = true;
      53           0 :     bool bFoundSomething = false;
      54           0 :     while (!bFoundSomething && bHasMoreToSearch)
      55             :     {
      56             :         // Priming loop
      57           0 :         if (!bAlreadyCheckedCurrent && ShouldHandleElement(xSearchLoop))
      58             :         {
      59           0 :             m_xCurrentObject = xSearchLoop;
      60           0 :             bFoundSomething = true;
      61             :         }
      62             :         else
      63             :         {
      64             :             // First, check to see if there's a match below
      65           0 :             ::com::sun::star::uno::Reference< ::com::sun::star::container::XIndexAccess> xContainerAccess(xSearchLoop, ::com::sun::star::uno::UNO_QUERY);
      66           0 :             if (xContainerAccess.is() && xContainerAccess->getCount() && ShouldStepInto(xContainerAccess))
      67             :             {
      68           0 :                 ::com::sun::star::uno::Any aElement(xContainerAccess->getByIndex(0));
      69           0 :                 xSearchLoop = *(::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface>*)aElement.getValue();
      70           0 :                 bCheckingStartingPoint = false;
      71             : 
      72           0 :                 m_arrChildIndizies.push_back((sal_Int32)0);
      73             :             }
      74             :             else
      75             :             {   // otherwise, look above and to the right, if possible
      76           0 :                 while (m_arrChildIndizies.size() > 0)
      77             :                 {   // If the list isn't empty and there's nothing above
      78           0 :                     ::com::sun::star::uno::Reference< ::com::sun::star::container::XChild> xChild(xSearchLoop, ::com::sun::star::uno::UNO_QUERY);
      79             :                     OSL_ENSURE(xChild.is(), "IndexAccessIterator::Next : a content has no appropriate interface !");
      80             : 
      81           0 :                     ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface> xParent( xChild->getParent());
      82           0 :                     xContainerAccess = ::com::sun::star::uno::Reference< ::com::sun::star::container::XIndexAccess>(xParent, ::com::sun::star::uno::UNO_QUERY);
      83             :                     OSL_ENSURE(xContainerAccess.is(), "IndexAccessIterator::Next : a content has an invalid parent !");
      84             : 
      85             :                     // Remove the index that SearchLoop had within this parent from my stack
      86           0 :                     sal_Int32 nOldSearchChildIndex = m_arrChildIndizies[m_arrChildIndizies.size() - 1];
      87           0 :                     m_arrChildIndizies.pop_back();
      88             : 
      89           0 :                     if (nOldSearchChildIndex < xContainerAccess->getCount() - 1)
      90             :                     {   // Move to the right in this row
      91           0 :                         ++nOldSearchChildIndex;
      92             :                         // and check the next child
      93           0 :                         ::com::sun::star::uno::Any aElement(xContainerAccess->getByIndex(nOldSearchChildIndex));
      94           0 :                         xSearchLoop = *(::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface>*) aElement.getValue();
      95           0 :                         bCheckingStartingPoint = false;
      96             :                         // and update its position in the list.
      97           0 :                         m_arrChildIndizies.push_back((sal_Int32)nOldSearchChildIndex);
      98             : 
      99           0 :                         break;
     100             :                     }
     101             :                     // Finally, if there's nothing more to do in this row (to the right), we'll move on to the next row.
     102           0 :                     xSearchLoop = xParent;
     103           0 :                     bCheckingStartingPoint = false;
     104           0 :                 }
     105             : 
     106           0 :                 if (m_arrChildIndizies.empty() && !bCheckingStartingPoint)
     107             :                 {   //This is the case if there is nothing to the right in the original search loop
     108           0 :                     bHasMoreToSearch = false;
     109             :                 }
     110             :             }
     111             : 
     112           0 :             if (bHasMoreToSearch)
     113             :             {   // If there is still a node in the tree which can be tested
     114           0 :                 if (ShouldHandleElement(xSearchLoop))
     115             :                 {
     116           0 :                     m_xCurrentObject = xSearchLoop;
     117           0 :                     bFoundSomething = true;
     118             :                 }
     119             :                 else
     120           0 :                     if (bCheckingStartingPoint)
     121           0 :                         bHasMoreToSearch = false;
     122           0 :                 bAlreadyCheckedCurrent = true;
     123           0 :             }
     124             :         }
     125             :     }
     126             : 
     127           0 :     if (!bFoundSomething)
     128             :     {
     129             :         OSL_ENSURE(m_arrChildIndizies.empty(), "IndexAccessIterator::Next : items left on stack ! how this ?");
     130           0 :         Invalidate();
     131             :     }
     132             : 
     133           0 :     return m_xCurrentObject;
     134             : }
     135             : 
     136             : 
     137             : }   // namespace comphelper
     138             : 
     139             : 
     140             : 
     141             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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