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 <rtl/ustrbuf.hxx>
  27 #include "oox/helper/helper.hxx"
  28
  29 namespace oox {
  30
  31 // ============================================================================
  32
  33 using namespace ::com::sun::star::container;
  34 using namespace ::com::sun::star::lang;
  35 using namespace ::com::sun::star::uno;
  36
  37 // ============================================================================
  38
  39 namespace {
  40
  41 struct ValueRangeComp
  42 {
  43     inline bool operator()( const ValueRange& rLHS, const ValueRange& rRHS ) const
  44     {
  45         return rLHS.mnLast < rRHS.mnFirst;
  46     }
  47 };
  48
  49 } // namespace
  50
  51 // ----------------------------------------------------------------------------
  52
  53 void ValueRangeSet::insert( const ValueRange& rRange )
  54 {
  55     // find the first range that contains or follows the starting point of the passed range
  56     ValueRangeVector::iterator aBeg = maRanges.begin();
  57     ValueRangeVector::iterator aEnd = maRanges.end();
  58     ValueRangeVector::iterator aIt = ::std::lower_bound( aBeg, aEnd, rRange, ValueRangeComp() );
  59     // nothing to do if found range contains passed range
  60     if( (aIt != aEnd) && aIt->contains( rRange ) ) return;
  61     // check if previous range can be used to merge with the passed range
  62     if( (aIt != aBeg) && ((aIt - 1)->mnLast + 1 == rRange.mnFirst) ) --aIt;
  63     // check if current range (aIt) can be used to merge with passed range
  64     if( (aIt != aEnd) && aIt->intersects( rRange ) )
  65     {
  66         // set new start value to existing range
  67         aIt->mnFirst = ::std::min( aIt->mnFirst, rRange.mnFirst );
  68         // search first range that cannot be merged anymore (aNext)
  69         ValueRangeVector::iterator aNext = aIt + 1;
  70         while( (aNext != aEnd) && aNext->intersects( rRange ) ) ++aNext;
  71         // set new end value to existing range
  72         aIt->mnLast = ::std::max( (aNext - 1)->mnLast, rRange.mnLast );
  73         // remove ranges covered by new existing range (aIt)
  74         maRanges.erase( aIt + 1, aNext );
  75     }
  76     else
  77     {
  78         // merging not possible: insert new range
  79         maRanges.insert( aIt, rRange );
  80     }
  81 }
  82
  83 // ============================================================================
  84
  85 OUString ContainerHelper::getUnusedName(
  86         const Reference< XNameAccess >& rxNameAccess, const OUString& rSuggestedName,
  87         sal_Unicode cSeparator, sal_Int32 nFirstIndexToAppend )
  88 {
  89     OSL_ENSURE( rxNameAccess.is(), "ContainerHelper::getUnusedName - missing XNameAccess interface" );
  90
  91     OUString aNewName = rSuggestedName;
  92     sal_Int32 nIndex = nFirstIndexToAppend;
  93     while( rxNameAccess->hasByName( aNewName ) )
  94         aNewName = OUStringBuffer( rSuggestedName ).append( cSeparator ).append( nIndex++ ).makeStringAndClear();
  95     return aNewName;
  96 }
  97
  98 bool ContainerHelper::insertByName(
  99         const Reference< XNameContainer >& rxNameContainer,
 100         const OUString& rName, const Any& rObject, bool bReplaceOldExisting )
 101 {
 102     OSL_ENSURE( rxNameContainer.is(), "ContainerHelper::insertByName - missing XNameContainer interface" );
 103     bool bRet = false;
 104     try
 105     {
 106         if( bReplaceOldExisting && rxNameContainer->hasByName( rName ) )
 107             rxNameContainer->replaceByName( rName, rObject );
 108         else
 109             rxNameContainer->insertByName( rName, rObject );
 110         bRet = true;
 111     }
 112     catch( Exception& )
 113     {
 114     }
 115     OSL_ENSURE( bRet, "ContainerHelper::insertByName - cannot insert object" );
 116     return bRet;
 117 }
 118
 119 OUString ContainerHelper::insertByUnusedName(
 120         const Reference< XNameContainer >& rxNameContainer,
 121         const OUString& rSuggestedName, sal_Unicode cSeparator,
 122         const Any& rObject, bool bRenameOldExisting )
 123 {
 124     OSL_ENSURE( rxNameContainer.is(), "ContainerHelper::insertByUnusedName - missing XNameContainer interface" );
 125
 126     // find an unused name
 127     OUString aNewName = getUnusedName( rxNameContainer, rSuggestedName, cSeparator );
 128
 129     // rename existing object
 130     if( bRenameOldExisting && rxNameContainer->hasByName( rSuggestedName ) )
 131     {
 132         try
 133         {
 134             Any aOldObject = rxNameContainer->getByName( rSuggestedName );
 135             rxNameContainer->removeByName( rSuggestedName );
 136             rxNameContainer->insertByName( aNewName, aOldObject );
 137             aNewName = rSuggestedName;
 138         }
 139         catch( Exception& )
 140         {
 141             OSL_FAIL( "ContainerHelper::insertByUnusedName - cannot rename old object" );
 142         }
 143     }
 144
 145     // insert the new object and return its resulting name
 146     insertByName( rxNameContainer, aNewName, rObject );
 147     return aNewName;
 148 }
 149
 150 // ============================================================================
 151
 152 } // namespace oox
 153
 154 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */