Initial replacement of old repository.

HaInformator/FlatCollection.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Runtime.CompilerServices;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace HaInformator
+{
+    public class FlatCollection
+    {
+        private Dictionary<string, HashSet<Tree>> _FlatCollection;
+
+        public FlatCollection(Tree tree)
+        {
+            _addToCollection(tree);
+        }
+
+        public FlatCollection(TreeNodeCollection coll)
+        {
+            foreach (var t in coll) _addToCollection((Tree)t);
+        } 
+
+        private void _addToCollection(Tree tree)
+        {
+            if (_FlatCollection == null)
+                _FlatCollection = new Dictionary<string, HashSet<Tree>>();
+            if (!_FlatCollection.ContainsKey(tree.Name))
+                _FlatCollection.Add(tree.Name, new HashSet<Tree>());
+            if (!_FlatCollection[tree.Name].Contains(tree))
+                _FlatCollection[tree.Name].Add(tree);
+
+            foreach (var t in tree.Nodes)
+                _addToCollection((Tree)t);
+        }
+
+        public string[] Keys()
+        {
+            if (_FlatCollection == null)
+                return null;
+            return _FlatCollection.Keys.ToArray();
+        }
+
+        public HashSet<Tree> GetTrees(string key)
+        {
+            if (!_FlatCollection.ContainsKey(key))
+                return null;
+            else
+                return _FlatCollection[key];
+        }
+    }
+}