Added classes/functions for plugins to create and/or select new/existing things filters

Source/Core/Editing/CustomThingsFilter.cs

@@ -0,0 +1,79 @@
+
+#region ================== Copyright (c) 2007 Pascal vd Heiden
+
+/*
+ * Copyright (c) 2007 Pascal vd Heiden, www.codeimp.com
+ * This program is released under GNU General Public License
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ */
+
+#endregion
+
+#region ================== Namespaces
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Text;
+using System.Windows.Forms;
+using System.IO;
+using System.Reflection;
+using CodeImp.DoomBuilder.Map;
+using CodeImp.DoomBuilder.IO;
+using CodeImp.DoomBuilder.Config;
+
+#endregion
+
+namespace CodeImp.DoomBuilder.Editing
+{
+	public class CustomThingsFilter : ThingsFilter
+	{
+		#region ================== Variables
+
+		#endregion
+
+		#region ================== Properties
+
+		public string Name { get { return name; } set { name = value; } }
+		public string CategoryName { get { return categoryname; } set { categoryname = value; } }
+		public int ThingType { get { return thingtype; } set { thingtype = value; } }
+		public ICollection<string> RequiredFields { get { return requiredfields; } }
+		public ICollection<string> ForbiddenFields { get { return forbiddenfields; } }
+
+		#endregion
+
+		#region ================== Constructor / Disposer
+
+		// Constructor for a new filter
+		public CustomThingsFilter()
+		{
+			// Initialize
+			requiredfields = new List<string>();
+			forbiddenfields = new List<string>();
+			categoryname = "";
+			thingtype = -1;
+			name = "Unnamed filter";
+
+			// We have no destructor
+			GC.SuppressFinalize(this);
+		}
+
+		// Disposer
+		public virtual void Dispose()
+		{
+			base.Dispose();
+		}
+
+		#endregion
+
+		#region ================== Methods
+
+		#endregion
+	}
+}

Source/Core/Editing/ThingsFilter.cs

@@ -65,8 +65,8 @@ namespace CodeImp.DoomBuilder.Editing
 
 		#region ================== Properties
 
-		internal string Name { get { return name; } set { name = value; } }
-		internal string CategoryName { get { return categoryname; } set { categoryname = value; } }
+		public string Name { get { return name; } internal set { name = value; } }
+		public string CategoryName { get { return categoryname; } internal set { categoryname = value; } }
 		internal int ThingType { get { return thingtype; } set { thingtype = value; } }
 		internal ICollection<string> RequiredFields { get { return requiredfields; } }
 		internal ICollection<string> ForbiddenFields { get { return forbiddenfields; } }