xmloff/source/style/MultiPropertySetHelper.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
  21 #include <MultiPropertySetHelper.hxx>
  22 #include <com/sun/star/beans/XPropertySetInfo.hpp>
  23 #include <com/sun/star/beans/XPropertySet.hpp>
  24 #include <com/sun/star/beans/XMultiPropertySet.hpp>
  25
  26 #include <sal/log.hxx>
  27
  28 using ::com::sun::star::beans::XMultiPropertySet;
  29 using ::com::sun::star::beans::XPropertySet;
  30 using ::com::sun::star::beans::XPropertySetInfo;
  31 using ::com::sun::star::uno::Any;
  32 using ::com::sun::star::uno::Reference;
  33 using ::com::sun::star::uno::UNO_QUERY;
  34
  35
  36 MultiPropertySetHelper::MultiPropertySetHelper(
  37     const char** pNames ) :
  38         nLength( 0 ),
  39         pValues( nullptr )
  40 {
  41     // first count the elements
  42     for( const char** pPtr = pNames; *pPtr != nullptr; pPtr++ )
  43         nLength++;
  44
  45     // allocate array and create strings
  46     pPropertyNames.reset( new OUString[nLength] );
  47     for( sal_Int16 i = 0; i < nLength; i++ )
  48         pPropertyNames[i] = OUString::createFromAscii( pNames[i] );
  49 }
  50
  51
  52 MultiPropertySetHelper::~MultiPropertySetHelper()
  53 {
  54     pValues = nullptr; // memory 'owned' by aValues
  55 }
  56
  57
  58 void MultiPropertySetHelper::hasProperties(
  59     const Reference<XPropertySetInfo> & rInfo )
  60 {
  61     SAL_WARN_IF( !rInfo.is(), "xmloff", "I'd really like an XPropertySetInfo here." );
  62
  63     // allocate sequence index
  64     if ( !pSequenceIndex )
  65         pSequenceIndex.reset( new sal_Int16[nLength] );
  66
  67     // construct pSequenceIndex
  68     sal_Int16 nNumberOfProperties = 0;
  69     sal_Int16 i;
  70
  71     for( i = 0; i < nLength; i++ )
  72     {
  73         // ask for property
  74         bool bHasProperty =
  75             rInfo->hasPropertyByName( pPropertyNames[i] );
  76
  77         // set index and increment (if appropriate)
  78         pSequenceIndex[i]= bHasProperty ? nNumberOfProperties : -1;
  79         if ( bHasProperty )
  80             nNumberOfProperties++;
  81     }
  82
  83     // construct property sequence from index array
  84     if ( aPropertySequence.getLength() != nNumberOfProperties )
  85         aPropertySequence.realloc( nNumberOfProperties );
  86     OUString* pPropertySequence = aPropertySequence.getArray();
  87     for( i = 0; i < nLength; i ++ )
  88     {
  89         sal_Int16 nIndex = pSequenceIndex[i];
  90         if ( nIndex != -1 )
  91             pPropertySequence[nIndex] = pPropertyNames[i];
  92     }
  93 }
  94
  95 bool MultiPropertySetHelper::checkedProperties()
  96 {
  97     return (nullptr != pSequenceIndex);
  98 }
  99
 100
 101 void MultiPropertySetHelper::getValues(
 102     const Reference<XMultiPropertySet> & rMultiPropertySet )
 103 {
 104     SAL_WARN_IF( !rMultiPropertySet.is(), "xmloff", "We need an XMultiPropertySet." );
 105
 106     aValues = rMultiPropertySet->getPropertyValues( aPropertySequence );
 107     pValues = aValues.getConstArray();
 108 }
 109
 110 void MultiPropertySetHelper::getValues(
 111     const Reference<XPropertySet> & rPropertySet )
 112 {
 113     SAL_WARN_IF( !rPropertySet.is(), "xmloff", "We need an XPropertySet." );
 114
 115     // re-alloc aValues (if necessary) and fill with values from XPropertySet
 116     sal_Int16 nSupportedPropertiesCount =
 117         static_cast<sal_Int16>(aPropertySequence.getLength());
 118     if ( aValues.getLength() != nSupportedPropertiesCount )
 119         aValues.realloc( nSupportedPropertiesCount );
 120     Any* pMutableArray = aValues.getArray();
 121     for( sal_Int16 i = 0; i < nSupportedPropertiesCount; i++ )
 122     {
 123         pMutableArray[i] = rPropertySet->getPropertyValue(
 124             pPropertyNames[ pSequenceIndex[ i ] ] );
 125     }
 126
 127     // re-establish pValues pointer
 128     pValues = aValues.getConstArray();
 129 }
 130
 131
 132 const Any& MultiPropertySetHelper::getValue( sal_Int16 nIndex,
 133                      const Reference< XPropertySet> & rPropSet,
 134                      bool bTryMulti )
 135 {
 136     if( !pValues )
 137     {
 138         if( bTryMulti )
 139         {
 140             Reference < XMultiPropertySet > xMultiPropSet( rPropSet,
 141                                                            UNO_QUERY );
 142             if( xMultiPropSet.is() )
 143                 getValues( xMultiPropSet );
 144             else
 145                 getValues( rPropSet );
 146         }
 147         else
 148         {
 149             getValues( rPropSet );
 150         }
 151     }
 152
 153     return getValue( nIndex );
 154 }
 155
 156 const Any& MultiPropertySetHelper::getValue( sal_Int16 nIndex,
 157                      const Reference< XMultiPropertySet> & rMultiPropSet )
 158 {
 159     if( !pValues )
 160         getValues( rMultiPropSet );
 161
 162     return getValue( nIndex );
 163 }
 164
 165 // inline methods defined in header:
 166 // inline Any& MultiPropertySetHelper::getValue( sal_Int16 nIndex )
 167 // inline sal_Bool MultiPropertySetHelper::hasProperty( sal_Int16 nValueNo )
 168
 169 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */