toolkit/source/controls/table/cellvalueconversion.hxx

   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 #pragma once
  21
  22 #include <com/sun/star/util/XNumberFormatter.hpp>
  23 #include <com/sun/star/uno/Any.hxx>
  24 #include <unordered_map>
  25 #include <memory>
  26
  27 namespace svt
  28 {
  29 class StandardFormatNormalizer
  30 {
  31 public:
  32     /** converts the given <code>Any</code> into a <code>double</code> value to be fed into a number formatter
  33         */
  34     virtual double convertToDouble(css::uno::Any const& i_value) const = 0;
  35
  36     /** returns the format key to be used for formatting values
  37         */
  38     sal_Int32 getFormatKey() const { return m_nFormatKey; }
  39
  40 protected:
  41     StandardFormatNormalizer(css::uno::Reference<css::util::XNumberFormatter> const& i_formatter,
  42                              ::sal_Int32 const i_numberFormatType);
  43
  44     virtual ~StandardFormatNormalizer() {}
  45
  46 private:
  47     ::sal_Int32 m_nFormatKey;
  48 };
  49
  50 class CellValueConversion
  51 {
  52 public:
  53     CellValueConversion();
  54     ~CellValueConversion();
  55
  56     OUString convertToString(const css::uno::Any& i_cellValue);
  57
  58 private:
  59     bool ensureNumberFormatter();
  60     bool getValueNormalizer(css::uno::Type const& i_valueType,
  61                             std::shared_ptr<StandardFormatNormalizer>& o_formatter);
  62
  63     typedef std::unordered_map<OUString, std::shared_ptr<StandardFormatNormalizer>> NormalizerCache;
  64
  65     css::uno::Reference<css::util::XNumberFormatter> xNumberFormatter;
  66     bool bAttemptedFormatterCreation;
  67     NormalizerCache aNormalizers;
  68 };
  69
  70 } // namespace svt
  71
  72 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */