docmodel/source/color/ComplexColorJSON.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  */
  10
  11 #include <docmodel/color/ComplexColorJSON.hxx>
  12 #include <boost/property_tree/json_parser.hpp>
  13 #include <sstream>
  14 #include <utility>
  15 #include <sal/log.hxx>
  16 #include <tools/json_writer.hxx>
  17
  18 namespace model::color
  19 {
  20 bool convertFromJSON(OString const& rJsonString, model::ComplexColor& rComplexColor)
  21 {
  22     model::ComplexColor aComplexColor;
  23
  24     try
  25     {
  26         std::stringstream aStream((std::string(rJsonString)));
  27         boost::property_tree::ptree aRootTree;
  28         boost::property_tree::read_json(aStream, aRootTree);
  29
  30         sal_Int32 nThemeType = aRootTree.get<sal_Int32>("ThemeIndex", -1);
  31         aComplexColor.setThemeColor(model::convertToThemeColorType(nThemeType));
  32         boost::property_tree::ptree aTransformTree = aRootTree.get_child("Transformations");
  33         for (const auto& rEachTransformationNode :
  34              boost::make_iterator_range(aTransformTree.equal_range("")))
  35         {
  36             auto const& rTransformationTree = rEachTransformationNode.second;
  37             std::string sType = rTransformationTree.get<std::string>("Type", "");
  38             sal_Int16 nValue = rTransformationTree.get<sal_Int16>("Value", 0);
  39
  40             auto eType = model::TransformationType::Undefined;
  41             if (sType == "LumOff")
  42                 eType = model::TransformationType::LumOff;
  43             else if (sType == "LumMod")
  44                 eType = model::TransformationType::LumMod;
  45             else if (sType == "Tint")
  46                 eType = model::TransformationType::Tint;
  47             else if (sType == "Shade")
  48                 eType = model::TransformationType::Shade;
  49
  50             if (eType != model::TransformationType::Undefined)
  51                 aComplexColor.addTransformation({ eType, nValue });
  52         }
  53     }
  54     catch (const boost::property_tree::json_parser_error& /*exception*/)
  55     {
  56         return false;
  57     }
  58
  59     rComplexColor = std::move(aComplexColor);
  60     return true;
  61 }
  62
  63 void convertToJSONTree(tools::JsonWriter& rTree, model::ComplexColor const& rComplexColor)
  64 {
  65     rTree.put("ThemeIndex", sal_Int16(rComplexColor.getThemeColorType()));
  66     auto aTransformationsList = rTree.startArray("Transformations");
  67
  68     for (auto const& rTransformation : rComplexColor.getTransformations())
  69     {
  70         std::string aType;
  71         switch (rTransformation.meType)
  72         {
  73             case model::TransformationType::LumMod:
  74                 aType = "LumMod";
  75                 break;
  76             case model::TransformationType::LumOff:
  77                 aType = "LumOff";
  78                 break;
  79             case model::TransformationType::Tint:
  80                 aType = "Tint";
  81                 break;
  82             case model::TransformationType::Shade:
  83                 aType = "Shade";
  84                 break;
  85             default:
  86                 break;
  87         }
  88         if (!aType.empty())
  89         {
  90             auto aChild = rTree.startStruct();
  91             rTree.put("Type", aType);
  92             rTree.put("Value", rTransformation.mnValue);
  93         }
  94     }
  95 }
  96
  97 OString convertToJSON(model::ComplexColor const& rComplexColor)
  98 {
  99     tools::JsonWriter aTree;
 100     convertToJSONTree(aTree, rComplexColor);
 101     return aTree.finishAndGetAsOString();
 102 }
 103
 104 } // end model::theme
 105
 106 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */