1 files changed, 118 insertions, 0 deletions
diff --git a/sc/source/core/tool/unitconv.cxx b/sc/source/core/tool/unitconv.cxx
new file mode 100644
index 000000000..1f5337cd8
--- /dev/null
+++ b/sc/source/core/tool/unitconv.cxx
@@ -0,0 +1,118 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <com/sun/star/uno/Sequence.hxx>
+
+#include <unitconv.hxx>
+#include <global.hxx>
+#include <optutil.hxx>
+
+using namespace utl;
+using namespace com::sun::star::uno;
+
+const sal_Unicode cDelim = 0x01;        // delimiter between From and To
+
+// ScUnitConverterData
+ScUnitConverterData::ScUnitConverterData(
+    std::u16string_view rFromUnit, std::u16string_view rToUnit, double fValue ) :
+    maIndexString(BuildIndexString(rFromUnit, rToUnit)),
+    mfValue(fValue) {}
+
+OUString ScUnitConverterData::BuildIndexString(
+    std::u16string_view rFromUnit, std::u16string_view rToUnit )
+{
+    return rFromUnit + OUStringChar(cDelim) + rToUnit;
+}
+
+// ScUnitConverter
+constexpr OUStringLiteral CFGPATH_UNIT = u"Office.Calc/UnitConversion";
+constexpr OUStringLiteral CFGSTR_UNIT_FROM = u"FromUnit";
+constexpr OUStringLiteral CFGSTR_UNIT_TO = u"ToUnit";
+constexpr OUStringLiteral CFGSTR_UNIT_FACTOR = u"Factor";
+
+ScUnitConverter::ScUnitConverter()
+{
+    // read from configuration - "convert.ini" is no longer used
+    //TODO: config item as member to allow change of values
+
+    ScLinkConfigItem aConfigItem( CFGPATH_UNIT );
+
+    // empty node name -> use the config item's path itself
+    const Sequence<OUString> aNodeNames = aConfigItem.GetNodeNames( "" );
+
+    tools::Long nNodeCount = aNodeNames.getLength();
+    if ( !nNodeCount )
+        return;
+
+    Sequence<OUString> aValNames( nNodeCount * 3 );
+    OUString* pValNameArray = aValNames.getArray();
+    const OUString sSlash('/');
+
+    tools::Long nIndex = 0;
+    for (const OUString& rNode : aNodeNames)
+    {
+        OUString sPrefix = rNode + sSlash;
+
+        pValNameArray[nIndex++] = sPrefix + CFGSTR_UNIT_FROM;
+        pValNameArray[nIndex++] = sPrefix + CFGSTR_UNIT_TO;
+        pValNameArray[nIndex++] = sPrefix + CFGSTR_UNIT_FACTOR;
+    }
+
+    Sequence<Any> aProperties = aConfigItem.GetProperties(aValNames);
+
+    if (aProperties.getLength() != aValNames.getLength())
+        return;
+
+    const Any* pProperties = aProperties.getConstArray();
+
+    OUString sFromUnit;
+    OUString sToUnit;
+    double fFactor = 0;
+
+    nIndex = 0;
+    for (tools::Long i=0; i<nNodeCount; i++)
+    {
+        pProperties[nIndex++] >>= sFromUnit;
+        pProperties[nIndex++] >>= sToUnit;
+        pProperties[nIndex++] >>= fFactor;
+
+        ScUnitConverterData aNew(sFromUnit, sToUnit, fFactor);
+        OUString const aIndex = aNew.GetIndexString();
+        maData.insert(std::make_pair(aIndex, aNew));
+    }
+}
+
+ScUnitConverter::~ScUnitConverter() {}
+
+bool ScUnitConverter::GetValue(
+    double& fValue, std::u16string_view rFromUnit, std::u16string_view rToUnit ) const
+{
+    OUString aIndex = ScUnitConverterData::BuildIndexString(rFromUnit, rToUnit);
+    MapType::const_iterator it = maData.find(aIndex);
+    if (it == maData.end())
+    {
+        fValue = 1.0;
+        return false;
+    }
+
+    fValue = it->second.GetValue();
+    return true;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */