sc/source/core/tool/unitconv.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 <com/sun/star/uno/Any.hxx>
  21 #include <com/sun/star/uno/Sequence.hxx>
  22
  23 #include "unitconv.hxx"
  24 #include "global.hxx"
  25 #include "viewopti.hxx"
  26
  27 using namespace utl;
  28 using namespace com::sun::star::uno;
  29
  30 const sal_Unicode cDelim = 0x01;        // Delimiter zwischen From und To
  31
  32 // ScUnitConverterData
  33 ScUnitConverterData::ScUnitConverterData(
  34     const OUString& rFromUnit, const OUString& rToUnit, double fValue ) :
  35     maIndexString(BuildIndexString(rFromUnit, rToUnit)),
  36     mfValue(fValue) {}
  37
  38 ScUnitConverterData::ScUnitConverterData( const ScUnitConverterData& r ) :
  39     maIndexString(r.maIndexString),
  40     mfValue(r.mfValue) {}
  41
  42 ScUnitConverterData::~ScUnitConverterData() {}
  43
  44 double ScUnitConverterData::GetValue() const
  45 {
  46     return mfValue;
  47 }
  48
  49 const OUString& ScUnitConverterData::GetIndexString() const
  50 {
  51     return maIndexString;
  52 }
  53
  54 OUString ScUnitConverterData::BuildIndexString(
  55     const OUString& rFromUnit, const OUString& rToUnit )
  56 {
  57     OUStringBuffer aBuf(rFromUnit);
  58     aBuf.append(cDelim);
  59     aBuf.append(rToUnit);
  60     return aBuf.makeStringAndClear();
  61 }
  62
  63 // ScUnitConverter
  64 #define CFGPATH_UNIT        "Office.Calc/UnitConversion"
  65 #define CFGSTR_UNIT_FROM    "FromUnit"
  66 #define CFGSTR_UNIT_TO      "ToUnit"
  67 #define CFGSTR_UNIT_FACTOR  "Factor"
  68
  69 ScUnitConverter::ScUnitConverter()
  70 {
  71     //  read from configuration - "convert.ini" is no longer used
  72     //! config item as member to allow change of values
  73
  74     ScLinkConfigItem aConfigItem( OUString( CFGPATH_UNIT ) );
  75
  76     // empty node name -> use the config item's path itself
  77     OUString aEmptyString;
  78     Sequence<OUString> aNodeNames = aConfigItem.GetNodeNames( aEmptyString );
  79
  80     long nNodeCount = aNodeNames.getLength();
  81     if ( nNodeCount )
  82     {
  83         const OUString* pNodeArray = aNodeNames.getConstArray();
  84         Sequence<OUString> aValNames( nNodeCount * 3 );
  85         OUString* pValNameArray = aValNames.getArray();
  86         const OUString sSlash('/');
  87
  88         long nIndex = 0;
  89         for (long i=0; i<nNodeCount; i++)
  90         {
  91             OUString sPrefix = pNodeArray[i];
  92             sPrefix += sSlash;
  93
  94             pValNameArray[nIndex] = sPrefix;
  95             pValNameArray[nIndex++] += OUString( CFGSTR_UNIT_FROM );
  96             pValNameArray[nIndex] = sPrefix;
  97             pValNameArray[nIndex++] += OUString( CFGSTR_UNIT_TO );
  98             pValNameArray[nIndex] = sPrefix;
  99             pValNameArray[nIndex++] += OUString( CFGSTR_UNIT_FACTOR );
 100         }
 101
 102         Sequence<Any> aProperties = aConfigItem.GetProperties(aValNames);
 103
 104         if (aProperties.getLength() == aValNames.getLength())
 105         {
 106             const Any* pProperties = aProperties.getConstArray();
 107
 108             OUString sFromUnit;
 109             OUString sToUnit;
 110             double fFactor = 0;
 111
 112             nIndex = 0;
 113             for (long i=0; i<nNodeCount; i++)
 114             {
 115                 pProperties[nIndex++] >>= sFromUnit;
 116                 pProperties[nIndex++] >>= sToUnit;
 117                 pProperties[nIndex++] >>= fFactor;
 118
 119                 ScUnitConverterData* pNew = new ScUnitConverterData( sFromUnit, sToUnit, fFactor );
 120                 OUString aIndex  = pNew->GetIndexString();
 121                 maData.insert(aIndex, pNew);
 122             }
 123         }
 124     }
 125 }
 126
 127 ScUnitConverter::~ScUnitConverter() {}
 128
 129 bool ScUnitConverter::GetValue(
 130     double& fValue, const OUString& rFromUnit, const OUString& rToUnit ) const
 131 {
 132     OUString aIndex = ScUnitConverterData::BuildIndexString(rFromUnit, rToUnit);
 133     MapType::const_iterator it = maData.find(aIndex);
 134     if (it == maData.end())
 135     {
 136         fValue = 1.0;
 137         return false;
 138     }
 139
 140     fValue = it->second->GetValue();
 141     return true;
 142 }
 143
 144 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */