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 #include <com/sun/star/lang/XServiceInfo.hpp>
  26
  27 #include <algorithm>
  28
  29
  30 using ::com::sun::star::beans::XMultiPropertySet;
  31 using ::com::sun::star::beans::XPropertySet;
  32 using ::com::sun::star::beans::XPropertySetInfo;
  33 using ::com::sun::star::lang::XServiceInfo;
  34 using ::com::sun::star::uno::Any;
  35 using ::com::sun::star::uno::Reference;
  36 using ::com::sun::star::uno::Sequence;
  37 using ::com::sun::star::uno::UNO_QUERY;
  38 using ::std::sort;
  39
  40
  41 MultiPropertySetHelper::MultiPropertySetHelper(
  42     const sal_Char** pNames ) :
  43         pPropertyNames( NULL ),
  44         nLength( 0 ),
  45         aPropertySequence(),
  46         pSequenceIndex( NULL ),
  47         aValues(),
  48         pValues( NULL )
  49 {
  50     // first count the elements
  51     for( const sal_Char** pPtr = pNames; *pPtr != NULL; pPtr++ )
  52         nLength++;
  53
  54     // allocate array and create strings
  55     pPropertyNames = new OUString[nLength];
  56     for( sal_Int16 i = 0; i < nLength; i++ )
  57         pPropertyNames[i] = OUString::createFromAscii( pNames[i] );
  58 }
  59
  60
  61 MultiPropertySetHelper::~MultiPropertySetHelper()
  62 {
  63     pValues = NULL; // memory 'owned' by aValues
  64
  65     delete[] pSequenceIndex;
  66     delete[] pPropertyNames;
  67 }
  68
  69
  70 void MultiPropertySetHelper::hasProperties(
  71     const Reference<XPropertySetInfo> & rInfo )
  72 {
  73     DBG_ASSERT( rInfo.is(), "I'd really like an XPropertySetInfo here." );
  74
  75     // allocate sequence index
  76     if ( NULL == pSequenceIndex )
  77         pSequenceIndex = new sal_Int16[nLength] ;
  78
  79     // construct pSequenceIndex
  80     sal_Int16 nNumberOfProperties = 0;
  81     sal_Int16 i;
  82
  83     for( i = 0; i < nLength; i++ )
  84     {
  85         // ask for property
  86         bool bHasProperty =
  87             rInfo->hasPropertyByName( pPropertyNames[i] );
  88
  89         // set index and increment (if appropriate)
  90         pSequenceIndex[i]= bHasProperty ? nNumberOfProperties : -1;
  91         if ( bHasProperty )
  92             nNumberOfProperties++;
  93     }
  94
  95     // construct property sequence from index array
  96     if ( aPropertySequence.getLength() != nNumberOfProperties )
  97         aPropertySequence.realloc( nNumberOfProperties );
  98     OUString* pPropertySequence = aPropertySequence.getArray();
  99     for( i = 0; i < nLength; i ++ )
 100     {
 101         sal_Int16 nIndex = pSequenceIndex[i];
 102         if ( nIndex != -1 )
 103             pPropertySequence[nIndex] = pPropertyNames[i];
 104     }
 105 }
 106
 107 bool MultiPropertySetHelper::checkedProperties()
 108 {
 109     return (NULL != pSequenceIndex);
 110 }
 111
 112
 113
 114 void MultiPropertySetHelper::getValues(
 115     const Reference<XMultiPropertySet> & rMultiPropertySet )
 116 {
 117     DBG_ASSERT( rMultiPropertySet.is(), "We need an XMultiPropertySet." );
 118
 119     aValues = rMultiPropertySet->getPropertyValues( aPropertySequence );
 120     pValues = aValues.getConstArray();
 121 }
 122
 123 void MultiPropertySetHelper::getValues(
 124     const Reference<XPropertySet> & rPropertySet )
 125 {
 126     DBG_ASSERT( rPropertySet.is(), "We need an XPropertySet." );
 127
 128     // re-alloc aValues (if necessary) and fill with values from XPropertySet
 129     sal_Int16 nSupportedPropertiesCount =
 130         (sal_Int16)aPropertySequence.getLength();
 131     if ( aValues.getLength() != nSupportedPropertiesCount )
 132         aValues.realloc( nSupportedPropertiesCount );
 133     Any* pMutableArray = aValues.getArray();
 134     for( sal_Int16 i = 0; i < nSupportedPropertiesCount; i++ )
 135     {
 136         pMutableArray[i] = rPropertySet->getPropertyValue(
 137             pPropertyNames[ pSequenceIndex[ i ] ] );
 138     }
 139
 140     // re-establish pValues pointer
 141     pValues = aValues.getConstArray();
 142 }
 143
 144
 145 const Any& MultiPropertySetHelper::getValue( sal_Int16 nIndex,
 146                      const Reference< XPropertySet> & rPropSet,
 147                      bool bTryMulti )
 148 {
 149     if( !pValues )
 150     {
 151         if( bTryMulti )
 152         {
 153             Reference < XMultiPropertySet > xMultiPropSet( rPropSet,
 154                                                            UNO_QUERY );
 155             if( xMultiPropSet.is() )
 156                 getValues( xMultiPropSet );
 157             else
 158                 getValues( rPropSet );
 159         }
 160         else
 161         {
 162             getValues( rPropSet );
 163         }
 164     }
 165
 166     return getValue( nIndex );
 167 }
 168
 169 const Any& MultiPropertySetHelper::getValue( sal_Int16 nIndex,
 170                      const Reference< XMultiPropertySet> & rMultiPropSet )
 171 {
 172     if( !pValues )
 173         getValues( rMultiPropSet );
 174
 175     return getValue( nIndex );
 176 }
 177
 178 // inline methods defined in header:
 179 // inline Any& MultiPropertySetHelper::getValue( sal_Int16 nIndex )
 180 // inline sal_Bool MultiPropertySetHelper::hasProperty( sal_Int16 nValueNo )
 181
 182 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */