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/XIndexContainer.hpp>
  25 #include <com/sun/star/container/XNameContainer.hpp>
  26 #include <com/sun/star/lang/XMultiServiceFactory.hpp>
  27 #include <com/sun/star/uno/XComponentContext.hpp>
  28 #include <osl/diagnose.h>
  29 #include <rtl/ustrbuf.hxx>
  30 #include <oox/helper/helper.hxx>
  31
  32 namespace oox {
  33
  34 using namespace ::com::sun::star::container;
  35 using namespace ::com::sun::star::lang;
  36 using namespace ::com::sun::star::uno;
  37
  38 namespace {
  39
  40 struct ValueRangeComp
  41 {
  42     bool operator()( const ValueRange& rLHS, const ValueRange& rRHS ) const
  43     {
  44         return rLHS.mnLast < rRHS.mnFirst;
  45     }
  46 };
  47
  48 } // namespace
  49
  50 void ValueRangeSet::insert( const ValueRange& rRange )
  51 {
  52     // find the first range that contains or follows the starting point of the passed range
  53     ValueRangeVector::iterator aBeg = maRanges.begin();
  54     ValueRangeVector::iterator aEnd = maRanges.end();
  55     ValueRangeVector::iterator aIt = ::std::lower_bound( aBeg, aEnd, rRange, ValueRangeComp() );
  56     // nothing to do if found range contains passed range
  57     if( (aIt != aEnd) && aIt->contains( rRange ) ) return;
  58     // check if previous range can be used to merge with the passed range
  59     if( (aIt != aBeg) && ((aIt - 1)->mnLast + 1 == rRange.mnFirst) ) --aIt;
  60     // check if current range (aIt) can be used to merge with passed range
  61     if( (aIt != aEnd) && aIt->intersects( rRange ) )
  62     {
  63         // set new start value to existing range
  64         aIt->mnFirst = ::std::min( aIt->mnFirst, rRange.mnFirst );
  65         // search first range that cannot be merged anymore (aNext)
  66         ValueRangeVector::iterator aNext = aIt + 1;
  67         while( (aNext != aEnd) && aNext->intersects( rRange ) ) ++aNext;
  68         // set new end value to existing range
  69         aIt->mnLast = ::std::max( (aNext - 1)->mnLast, rRange.mnLast );
  70         // remove ranges covered by new existing range (aIt)
  71         maRanges.erase( aIt + 1, aNext );
  72     }
  73     else
  74     {
  75         // merging not possible: insert new range
  76         maRanges.insert( aIt, rRange );
  77     }
  78 }
  79
  80 OUString ContainerHelper::getUnusedName(
  81         const Reference< XNameAccess >& rxNameAccess, const OUString& rSuggestedName,
  82         sal_Unicode cSeparator )
  83 {
  84     OSL_ENSURE( rxNameAccess.is(), "ContainerHelper::getUnusedName - missing XNameAccess interface" );
  85
  86     OUString aNewName = rSuggestedName;
  87     sal_Int32 nIndex = -1;
  88     while( rxNameAccess->hasByName( aNewName ) )
  89         aNewName = rSuggestedName + OUStringLiteral1(cSeparator) + OUString::number( nIndex++ );
  90     return aNewName;
  91 }
  92
  93 bool ContainerHelper::insertByName(
  94         const Reference< XNameContainer >& rxNameContainer,
  95         const OUString& rName, const Any& rObject )
  96 {
  97     OSL_ENSURE( rxNameContainer.is(), "ContainerHelper::insertByName - missing XNameContainer interface" );
  98     bool bRet = false;
  99     try
 100     {
 101         if( rxNameContainer->hasByName( rName ) )
 102             rxNameContainer->replaceByName( rName, rObject );
 103         else
 104             rxNameContainer->insertByName( rName, rObject );
 105         bRet = true;
 106     }
 107     catch( Exception& )
 108     {
 109     }
 110     OSL_ENSURE( bRet, "ContainerHelper::insertByName - cannot insert object" );
 111     return bRet;
 112 }
 113
 114 OUString ContainerHelper::insertByUnusedName(
 115         const Reference< XNameContainer >& rxNameContainer,
 116         const OUString& rSuggestedName, sal_Unicode cSeparator,
 117         const Any& rObject )
 118 {
 119     OSL_ENSURE( rxNameContainer.is(), "ContainerHelper::insertByUnusedName - missing XNameContainer interface" );
 120
 121     // find an unused name
 122     OUString aNewName = getUnusedName( rxNameContainer, rSuggestedName, cSeparator );
 123
 124     // insert the new object and return its resulting name
 125     insertByName( rxNameContainer, aNewName, rObject );
 126     return aNewName;
 127 }
 128
 129 } // namespace oox
 130
 131 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */