SlimDXc_Jun2010(VC++2008)/source/design/HalfConverter.cpp

   1 #include "stdafx.h"\r
   2 /*\r
   3 * Copyright (c) 2007-2010 SlimDX Group\r
   4 * \r
   5 * Permission is hereby granted, free of charge, to any person obtaining a copy\r
   6 * of this software and associated documentation files (the "Software"), to deal\r
   7 * in the Software without restriction, including without limitation the rights\r
   8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\r
   9 * copies of the Software, and to permit persons to whom the Software is\r
  10 * furnished to do so, subject to the following conditions:\r
  11 * \r
  12 * The above copyright notice and this permission notice shall be included in\r
  13 * all copies or substantial portions of the Software.\r
  14 * \r
  15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
  16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\r
  17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\r
  18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\r
  19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\r
  20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\r
  21 * THE SOFTWARE.\r
  22 */\r
  23 #include <d3dx9.h>\r
  24 \r
  25 #include "../InternalHelpers.h"\r
  26 #include "../math/Half.h"\r
  27 \r
  28 #include "HalfConverter.h"\r
  29 \r
  30 using namespace System;\r
  31 using namespace System::Collections;\r
  32 using namespace System::Drawing;\r
  33 using namespace System::ComponentModel;\r
  34 using namespace System::ComponentModel::Design::Serialization;\r
  35 using namespace System::Globalization;\r
  36 using namespace System::Reflection;\r
  37 \r
  38 namespace SlimDX\r
  39 {\r
  40 namespace Design\r
  41 {\r
  42         bool HalfConverter::CanConvertTo(ITypeDescriptorContext^ context, Type^ destinationType)\r
  43         {\r
  44                 if( destinationType == String::typeid || destinationType == InstanceDescriptor::typeid )\r
  45                         return true;\r
  46                 else\r
  47                         return ExpandableObjectConverter::CanConvertTo(context, destinationType);\r
  48         }\r
  49 \r
  50         bool HalfConverter::CanConvertFrom(ITypeDescriptorContext^ context, Type^ sourceType)\r
  51         {\r
  52                 if( sourceType == String::typeid )\r
  53                         return true;\r
  54                 else\r
  55                         return ExpandableObjectConverter::CanConvertFrom(context, sourceType);\r
  56         }\r
  57 \r
  58         Object^ HalfConverter::ConvertTo(ITypeDescriptorContext^ context, CultureInfo^ culture, Object^ value, Type^ destinationType)\r
  59         {\r
  60                 if( destinationType == nullptr )\r
  61                         throw gcnew ArgumentNullException( "destinationType" );\r
  62 \r
  63                 if( culture == nullptr )\r
  64                         culture = CultureInfo::CurrentCulture;\r
  65 \r
  66                 Half^ half = dynamic_cast<Half^>( value );\r
  67 \r
  68                 if( destinationType == String::typeid && half != nullptr )\r
  69                 {\r
  70                         String^ separator = culture->TextInfo->ListSeparator + " ";\r
  71                         TypeConverter^ converter = TypeDescriptor::GetConverter(float::typeid);\r
  72                         array<String^>^ stringArray = gcnew array<String^>( 1 );\r
  73 \r
  74                         stringArray[0] = converter->ConvertToString( context, culture, safe_cast<float>( *half ) );\r
  75 \r
  76                         return String::Join( separator, stringArray );\r
  77                 }\r
  78                 else if( destinationType == InstanceDescriptor::typeid && half != nullptr )\r
  79                 {\r
  80                         ConstructorInfo^ info = (Half::typeid)->GetConstructor( gcnew array<Type^> { float::typeid } );\r
  81                         if( info != nullptr )\r
  82                                 return gcnew InstanceDescriptor( info, gcnew array<Object^> { safe_cast<float>( *half ) } );\r
  83                 }\r
  84 \r
  85                 return ExpandableObjectConverter::ConvertTo(context, culture, value, destinationType);\r
  86         }\r
  87 \r
  88         Object^ HalfConverter::ConvertFrom(ITypeDescriptorContext^ context, CultureInfo^ culture, Object^ value)\r
  89         {\r
  90                 if( culture == nullptr )\r
  91                         culture = CultureInfo::CurrentCulture;\r
  92 \r
  93                 String^ string = dynamic_cast<String^>( value );\r
  94 \r
  95                 if( string != nullptr )\r
  96                 {\r
  97                         string = string->Trim();\r
  98                         TypeConverter^ converter = TypeDescriptor::GetConverter(float::typeid);\r
  99                         array<String^>^ stringArray = string->Split( culture->TextInfo->ListSeparator[0] );\r
 100 \r
 101                         if( stringArray->Length != 1 )\r
 102                                 throw gcnew ArgumentException("Invalid half format.");\r
 103 \r
 104                         float H = safe_cast<float>( converter->ConvertFromString( context, culture, stringArray[0] ) );\r
 105 \r
 106                         return gcnew Half(H);\r
 107                 }\r
 108 \r
 109                 return ExpandableObjectConverter::ConvertFrom(context, culture, value);\r
 110         }\r
 111 }\r
 112 }