Add absolute world chunk coordinate to chunk names.

NBTModel/Data/CubicRegionFile.cs

@@ -1,9 +1,13 @@
-using Substrate.Core;
+using System;
+using System.Text.RegularExpressions;
+using Substrate.Core;
 
 namespace NBTExplorer.Model
 {
     public class CubicRegionFile : RegionFile
     {
+        private static Regex _namePattern = new Regex("r2\\.(-?[0-9]+)\\.(-?[0-9]+)\\.(-?[0-9]+)\\.mc[ar]$");
+
         private const int _sectorBytes = 256;
         private static byte[] _emptySector = new byte[_sectorBytes];
 
@@ -20,5 +24,21 @@ namespace NBTExplorer.Model
         {
             get { return _emptySector; }
         }
+
+        public override RegionKey parseCoordinatesFromName ()
+        {
+            int x = 0;
+            int z = 0;
+
+            Match match = _namePattern.Match(fileName);
+            if (!match.Success) {
+                return RegionKey.InvalidRegion;
+            }
+
+            x = Convert.ToInt32(match.Groups[1].Value);
+            z = Convert.ToInt32(match.Groups[3].Value);
+
+            return new RegionKey(x, z);
+        }
     }
 }

NBTModel/Data/Nodes/RegionChunkDataNode.cs

@@ -53,7 +53,15 @@ namespace NBTExplorer.Model
 
         public override string NodeDisplay
         {
-            get { return "Chunk [" + _x + ", " + _z + "]"; }
+            get 
+            {
+                RegionKey key = _regionFile.parseCoordinatesFromName();
+                string absChunk = "";
+                if (key != RegionKey.InvalidRegion)
+                    absChunk = "        in world at (" + (key.X * 32 + _x) + ", " + (key.Z * 32 + _z) + ")";
+
+                return "Chunk [" + _x + ", " + _z + "]" + absChunk; 
+            }
         }
 
         protected override void ExpandCore ()