mcs/class/corlib/System.Globalization/RegionInfo.cs

   1 //
   2 // RegionInfo.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto  <atsushi@ximian.com>
   6 //
   7
   8 //
   9 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30 using System.Globalization;
  31 using System.Runtime.CompilerServices;
  32
  33 namespace System.Globalization
  34 {
  35 #if NET_2_0
  36         [System.Runtime.InteropServices.ComVisible(true)]
  37 #endif
  38         [Serializable]
  39         public class RegionInfo
  40         {
  41                 static RegionInfo currentRegion;
  42
  43                 // This property is not synchronized with CurrentCulture, so
  44                 // we need to use bootstrap CurrentCulture LCID.
  45                 public static RegionInfo CurrentRegion {
  46                         get {
  47                                 if (currentRegion == null) {
  48                                         // make sure to fill BootstrapCultureID.
  49                                         CultureInfo ci = CultureInfo.CurrentCulture;
  50                                         // If current culture is invariant then region is not available.
  51                                         if (ci == null || CultureInfo.BootstrapCultureID == 0x7F)
  52                                                 return null;
  53                                         currentRegion = new RegionInfo (CultureInfo.BootstrapCultureID);
  54                                 }
  55                                 return currentRegion;
  56                         }
  57                 }
  58
  59                 int regionId;
  60                 string iso2Name;
  61                 string iso3Name;
  62                 string win3Name;
  63                 string englishName;
  64                 string currencySymbol;
  65                 string isoCurrencySymbol;
  66                 string currencyEnglishName;
  67
  68                 public RegionInfo (int lcid)
  69                 {
  70                         if (!construct_internal_region_from_lcid (lcid))
  71                                 throw new ArgumentException (
  72                                         String.Format ("Region ID {0} (0x{0:X4}) is not a " +
  73                                                         "supported region.", lcid), "lcid");
  74                 }
  75
  76                 public RegionInfo (string name)
  77                 {
  78                         if (name == null)
  79                                 throw new ArgumentNullException ();
  80
  81                         if (!construct_internal_region_from_name (name.ToUpperInvariant ()))
  82                                 throw new ArgumentException ("Region name " + name +
  83                                                 " is not supported.", "name");
  84                 }
  85
  86                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
  87                 private extern bool construct_internal_region_from_lcid (int lcid);
  88
  89                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
  90                 private extern bool construct_internal_region_from_name (string name);
  91
  92 #if NET_2_0
  93                 [System.Runtime.InteropServices.ComVisible(false)]
  94                 public virtual string CurrencyEnglishName {
  95                         get { return currencyEnglishName; }
  96                 }
  97 #endif
  98
  99                 public virtual string CurrencySymbol {
 100                         get { return currencySymbol; }
 101                 }
 102
 103                 [MonoTODO]
 104                 public virtual string DisplayName {
 105                         get { return englishName; }
 106                 }
 107
 108                 public virtual string EnglishName {
 109                         get { return englishName; }
 110                 }
 111
 112                 public virtual bool IsMetric {
 113                         get {
 114                                 switch (iso2Name) {
 115                                 case "US":
 116                                 case "UK":
 117                                         return false;
 118                                 default:
 119                                         return true;
 120                                 }
 121                         }
 122                 }
 123
 124                 public virtual string ISOCurrencySymbol {
 125                         get { return isoCurrencySymbol; }
 126                 }
 127
 128 #if NET_2_0
 129                 [MonoTODO]
 130                 [System.Runtime.InteropServices.ComVisible(false)]
 131                 public virtual string NativeName {
 132                         get { return DisplayName; }
 133                 }
 134
 135                 [MonoTODO]
 136                 public virtual string CurrencyNativeName {
 137                         get { throw new NotImplementedException (); }
 138                 }
 139 #endif
 140
 141                 public virtual string Name {
 142                         get { return iso2Name; }
 143                 }
 144
 145                 public virtual string ThreeLetterISORegionName {
 146                         get { return iso3Name; }
 147                 }
 148
 149                 public virtual string ThreeLetterWindowsRegionName {
 150                         get { return win3Name; }
 151                 }
 152
 153                 public virtual string TwoLetterISORegionName {
 154                         get { return iso2Name; }
 155                 }
 156
 157                 //
 158                 // methods
 159
 160 #if NET_2_0
 161 #else
 162                 public override bool Equals (object value)
 163                 {
 164                         RegionInfo other = value as RegionInfo;
 165                         return other != null && regionId == other.regionId;
 166                 }
 167
 168                 public override int GetHashCode () {
 169                         return regionId;
 170                 }
 171 #endif
 172
 173                 public override string ToString ()
 174                 {
 175                         return Name;
 176                 }
 177         }
 178 }