oox/source/helper/containerhelper.cxx

   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 <algorithm>
  21
  22 #include <oox/helper/containerhelper.hxx>
  23
  24 #include <com/sun/star/container/XNameContainer.hpp>
  25 #include <osl/diagnose.h>
  26
  27 namespace oox {
  28
  29 using namespace ::com::sun::star::container;
  30 using namespace ::com::sun::star::uno;
  31
  32 namespace {
  33
  34 struct ValueRangeComp
  35 {
  36     bool operator()( const ValueRange& rLHS, const ValueRange& rRHS ) const
  37     {
  38         return rLHS.mnLast < rRHS.mnFirst;
  39     }
  40 };
  41
  42 } // namespace
  43
  44 void ValueRangeSet::insert( const ValueRange& rRange )
  45 {
  46     // find the first range that contains or follows the starting point of the passed range
  47     ValueRangeVector::iterator aBeg = maRanges.begin();
  48     ValueRangeVector::iterator aEnd = maRanges.end();
  49     ValueRangeVector::iterator aIt = ::std::lower_bound( aBeg, aEnd, rRange, ValueRangeComp() );
  50     // nothing to do if found range contains passed range
  51     if( (aIt != aEnd) && aIt->contains( rRange ) ) return;
  52     // check if previous range can be used to merge with the passed range
  53     if( (aIt != aBeg) && ((aIt - 1)->mnLast + 1 == rRange.mnFirst) ) --aIt;
  54     // check if current range (aIt) can be used to merge with passed range
  55     if( (aIt != aEnd) && aIt->intersects( rRange ) )
  56     {
  57         // set new start value to existing range
  58         aIt->mnFirst = ::std::min( aIt->mnFirst, rRange.mnFirst );
  59         // search first range that cannot be merged anymore (aNext)
  60         ValueRangeVector::iterator aNext = aIt + 1;
  61         while( (aNext != aEnd) && aNext->intersects( rRange ) ) ++aNext;
  62         // set new end value to existing range
  63         aIt->mnLast = ::std::max( (aNext - 1)->mnLast, rRange.mnLast );
  64         // remove ranges covered by new existing range (aIt)
  65         maRanges.erase( aIt + 1, aNext );
  66     }
  67     else
  68     {
  69         // merging not possible: insert new range
  70         maRanges.insert( aIt, rRange );
  71     }
  72 }
  73
  74 OUString ContainerHelper::getUnusedName(
  75         const Reference< XNameAccess >& rxNameAccess, const OUString& rSuggestedName,
  76         sal_Unicode cSeparator )
  77 {
  78     OSL_ENSURE( rxNameAccess.is(), "ContainerHelper::getUnusedName - missing XNameAccess interface" );
  79
  80     OUString aNewName = rSuggestedName;
  81     sal_Int32 nIndex = -1;
  82     while( rxNameAccess->hasByName( aNewName ) )
  83         aNewName = rSuggestedName + OUStringChar(cSeparator) + OUString::number( nIndex++ );
  84     return aNewName;
  85 }
  86
  87 bool ContainerHelper::insertByName(
  88         const Reference< XNameContainer >& rxNameContainer,
  89         const OUString& rName, const Any& rObject )
  90 {
  91     OSL_ENSURE( rxNameContainer.is(), "ContainerHelper::insertByName - missing XNameContainer interface" );
  92     bool bRet = false;
  93     try
  94     {
  95         if( rxNameContainer->hasByName( rName ) )
  96             rxNameContainer->replaceByName( rName, rObject );
  97         else
  98             rxNameContainer->insertByName( rName, rObject );
  99         bRet = true;
 100     }
 101     catch( Exception& )
 102     {
 103     }
 104     OSL_ENSURE( bRet, "ContainerHelper::insertByName - cannot insert object" );
 105     return bRet;
 106 }
 107
 108 OUString ContainerHelper::insertByUnusedName(
 109         const Reference< XNameContainer >& rxNameContainer,
 110         const OUString& rSuggestedName, sal_Unicode cSeparator,
 111         const Any& rObject )
 112 {
 113     OSL_ENSURE( rxNameContainer.is(), "ContainerHelper::insertByUnusedName - missing XNameContainer interface" );
 114
 115     // find an unused name
 116     OUString aNewName = getUnusedName( rxNameContainer, rSuggestedName, cSeparator );
 117
 118     // insert the new object and return its resulting name
 119     insertByName( rxNameContainer, aNewName, rObject );
 120     return aNewName;
 121 }
 122
 123 } // namespace oox
 124
 125 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */