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 "oox/helper/containerhelper.hxx"
  21
  22 #include <com/sun/star/container/XIndexContainer.hpp>
  23 #include <com/sun/star/container/XNameContainer.hpp>
  24 #include <com/sun/star/lang/XMultiServiceFactory.hpp>
  25 #include <com/sun/star/uno/XComponentContext.hpp>
  26 #include <osl/diagnose.h>
  27 #include <rtl/ustrbuf.hxx>
  28 #include "oox/helper/helper.hxx"
  29
  30 namespace oox {
  31
  32 using namespace ::com::sun::star::container;
  33 using namespace ::com::sun::star::lang;
  34 using namespace ::com::sun::star::uno;
  35
  36 namespace {
  37
  38 struct ValueRangeComp
  39 {
  40     inline bool operator()( const ValueRange& rLHS, const ValueRange& rRHS ) const
  41     {
  42         return rLHS.mnLast < rRHS.mnFirst;
  43     }
  44 };
  45
  46 } // namespace
  47
  48 void ValueRangeSet::insert( const ValueRange& rRange )
  49 {
  50     // find the first range that contains or follows the starting point of the passed range
  51     ValueRangeVector::iterator aBeg = maRanges.begin();
  52     ValueRangeVector::iterator aEnd = maRanges.end();
  53     ValueRangeVector::iterator aIt = ::std::lower_bound( aBeg, aEnd, rRange, ValueRangeComp() );
  54     // nothing to do if found range contains passed range
  55     if( (aIt != aEnd) && aIt->contains( rRange ) ) return;
  56     // check if previous range can be used to merge with the passed range
  57     if( (aIt != aBeg) && ((aIt - 1)->mnLast + 1 == rRange.mnFirst) ) --aIt;
  58     // check if current range (aIt) can be used to merge with passed range
  59     if( (aIt != aEnd) && aIt->intersects( rRange ) )
  60     {
  61         // set new start value to existing range
  62         aIt->mnFirst = ::std::min( aIt->mnFirst, rRange.mnFirst );
  63         // search first range that cannot be merged anymore (aNext)
  64         ValueRangeVector::iterator aNext = aIt + 1;
  65         while( (aNext != aEnd) && aNext->intersects( rRange ) ) ++aNext;
  66         // set new end value to existing range
  67         aIt->mnLast = ::std::max( (aNext - 1)->mnLast, rRange.mnLast );
  68         // remove ranges covered by new existing range (aIt)
  69         maRanges.erase( aIt + 1, aNext );
  70     }
  71     else
  72     {
  73         // merging not possible: insert new range
  74         maRanges.insert( aIt, rRange );
  75     }
  76 }
  77
  78 OUString ContainerHelper::getUnusedName(
  79         const Reference< XNameAccess >& rxNameAccess, const OUString& rSuggestedName,
  80         sal_Unicode cSeparator, sal_Int32 nFirstIndexToAppend )
  81 {
  82     OSL_ENSURE( rxNameAccess.is(), "ContainerHelper::getUnusedName - missing XNameAccess interface" );
  83
  84     OUString aNewName = rSuggestedName;
  85     sal_Int32 nIndex = nFirstIndexToAppend;
  86     while( rxNameAccess->hasByName( aNewName ) )
  87         aNewName = OUStringBuffer( rSuggestedName ).append( cSeparator ).append( nIndex++ ).makeStringAndClear();
  88     return aNewName;
  89 }
  90
  91 bool ContainerHelper::insertByName(
  92         const Reference< XNameContainer >& rxNameContainer,
  93         const OUString& rName, const Any& rObject, bool bReplaceOldExisting )
  94 {
  95     OSL_ENSURE( rxNameContainer.is(), "ContainerHelper::insertByName - missing XNameContainer interface" );
  96     bool bRet = false;
  97     try
  98     {
  99         if( bReplaceOldExisting && rxNameContainer->hasByName( rName ) )
 100             rxNameContainer->replaceByName( rName, rObject );
 101         else
 102             rxNameContainer->insertByName( rName, rObject );
 103         bRet = true;
 104     }
 105     catch( Exception& )
 106     {
 107     }
 108     OSL_ENSURE( bRet, "ContainerHelper::insertByName - cannot insert object" );
 109     return bRet;
 110 }
 111
 112 OUString ContainerHelper::insertByUnusedName(
 113         const Reference< XNameContainer >& rxNameContainer,
 114         const OUString& rSuggestedName, sal_Unicode cSeparator,
 115         const Any& rObject, bool bRenameOldExisting )
 116 {
 117     OSL_ENSURE( rxNameContainer.is(), "ContainerHelper::insertByUnusedName - missing XNameContainer interface" );
 118
 119     // find an unused name
 120     OUString aNewName = getUnusedName( rxNameContainer, rSuggestedName, cSeparator );
 121
 122     // rename existing object
 123     if( bRenameOldExisting && rxNameContainer->hasByName( rSuggestedName ) )
 124     {
 125         try
 126         {
 127             Any aOldObject = rxNameContainer->getByName( rSuggestedName );
 128             rxNameContainer->removeByName( rSuggestedName );
 129             rxNameContainer->insertByName( aNewName, aOldObject );
 130             aNewName = rSuggestedName;
 131         }
 132         catch( Exception& )
 133         {
 134             OSL_FAIL( "ContainerHelper::insertByUnusedName - cannot rename old object" );
 135         }
 136     }
 137
 138     // insert the new object and return its resulting name
 139     insertByName( rxNameContainer, aNewName, rObject );
 140     return aNewName;
 141 }
 142
 143 } // namespace oox
 144
 145 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */