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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /chart2/source/inc/CommonFunctors.hxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'chart2/source/inc/CommonFunctors.hxx')
-rw-r--r--chart2/source/inc/CommonFunctors.hxx126
1 files changed, 126 insertions, 0 deletions
diff --git a/chart2/source/inc/CommonFunctors.hxx b/chart2/source/inc/CommonFunctors.hxx
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+/* -*- 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 .
+ */
+#pragma once
+
+#include <o3tl/any.hxx>
+#include <rtl/math.hxx>
+#include <com/sun/star/uno/Any.hxx>
+#include <rtl/ustring.hxx>
+#include "charttoolsdllapi.hxx"
+
+#include <limits>
+
+namespace chart::CommonFunctors
+{
+
+/** unary function to convert any type T into a css::uno::Any.
+
+ <p>uno::makeAny is an inline function. Thus is cannot be taken directly
+ (via mem_fun_ptr)</p>
+*/
+template< typename T >
+ struct makeAny
+{
+ css::uno::Any operator() ( const T & aVal )
+ {
+ return css::uno::Any( aVal );
+ }
+};
+
+/** unary function to convert css::uno::Any into a double number.
+
+ <p>In case no number can be generated from the Any, NaN is returned.</p>
+*/
+struct OOO_DLLPUBLIC_CHARTTOOLS AnyToDouble
+{
+ double operator() ( const css::uno::Any & rAny )
+ {
+ double fResult = std::numeric_limits<double>::quiet_NaN();
+ rAny >>= fResult;
+ return fResult;
+ }
+};
+
+/** unary function to convert css::uno::Any into an
+ OUString.
+*/
+struct OOO_DLLPUBLIC_CHARTTOOLS AnyToString
+{
+ OUString operator() ( const css::uno::Any & rAny )
+ {
+ if( auto pDouble = o3tl::tryAccess<double>(rAny) )
+ {
+ if( std::isnan(*pDouble) )
+ return OUString();
+ return ::rtl::math::doubleToUString(
+ * pDouble,
+ rtl_math_StringFormat_Automatic,
+ rtl_math_DecimalPlaces_Max, // use maximum decimal places available
+ '.', // decimal separator
+ true // remove trailing zeros
+ );
+ }
+ else if( auto s = o3tl::tryAccess<OUString>(rAny) )
+ {
+ return *s;
+ }
+
+ return OUString();
+ }
+};
+
+/** unary function to convert an OUString into a double number.
+
+ <p>For conversion rtl::math::StringToDouble is used.</p>
+ */
+struct OOO_DLLPUBLIC_CHARTTOOLS OUStringToDouble
+{
+ double operator() ( std::u16string_view rStr )
+ {
+ rtl_math_ConversionStatus eConversionStatus;
+ double fResult = ::rtl::math::stringToDouble( rStr, '.', ',', & eConversionStatus );
+
+ if( eConversionStatus != rtl_math_ConversionStatus_Ok )
+ return std::numeric_limits<double>::quiet_NaN();
+
+ return fResult;
+ }
+};
+
+/** unary function to convert a double number into an OUString.
+
+ <p>For conversion rtl::math::DoubleToOUString is used.</p>
+ */
+struct OOO_DLLPUBLIC_CHARTTOOLS DoubleToOUString
+{
+ OUString operator() ( double fNumber )
+ {
+ return ::rtl::math::doubleToUString(
+ fNumber,
+ rtl_math_StringFormat_Automatic,
+ rtl_math_DecimalPlaces_Max, // use maximum decimal places available
+ '.',
+ true
+ );
+ }
+};
+
+} // namespace chart::CommonFunctors
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */