File: ColumnNodeBuilder.cs

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//
// Authors:
//   Christian Hergert	<chris@mosaix.net>
//   Ben Motmans  <ben.motmans@gmail.com>
//
// Copyright (C) 2005 Mosaix Communications, Inc.
// Copyright (c) 2007 Ben Motmans
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System;
using System.Threading;
using System.Collections.Generic;
using MonoDevelop.Database.Sql;
using MonoDevelop.Core;
using MonoDevelop.Ide;
using MonoDevelop.Ide.Gui.Pads;
using MonoDevelop.Components.Commands;
using MonoDevelop.Ide.Gui.Components;

namespace MonoDevelop.Database.ConnectionManager
{
	public class ColumnNodeBuilder : TypeNodeBuilder
	{
		public ColumnNodeBuilder ()
			: base ()
		{
		}
		
		public override Type NodeDataType {
			get { return typeof (ColumnSchema); }
		}
		
		public override string ContextMenuAddinPath {
			get { return "/MonoDevelop/Database/ContextMenu/ConnectionManagerPad/ColumnNode"; }
		}
		
		public override string GetNodeName (ITreeNavigator thisNode, object dataObject)
		{
			return AddinCatalog.GetString ("Column");
		}
		
		public override void BuildNode (ITreeBuilder treeBuilder, object dataObject, ref string label, ref Gdk.Pixbuf icon, ref Gdk.Pixbuf closedIcon)
		{
			ColumnSchema column = dataObject as ColumnSchema;
			
			label = column.Name + " (" + column.DataType.Name + ")";
			icon = Context.GetIcon ("md-db-column");
			//TODO: icon based on column type
		}
		
		public override void BuildChildNodes (ITreeBuilder builder, object dataObject)
		{
			ThreadPool.QueueUserWorkItem (new WaitCallback (BuildChildNodesThreaded), dataObject);
		}
		
		private void BuildChildNodesThreaded (object state)
		{
			ColumnNode node = state as ColumnNode;
			ITreeBuilder builder = Context.GetTreeBuilder (state);
			ISchemaProvider provider = node.Column.SchemaProvider;

			if (provider.IsSchemaActionSupported (SchemaType.Constraint, SchemaActions.Schema))
				DispatchService.GuiDispatch (delegate {
					builder.AddChild (new ConstraintsNode (node.ConnectionContext, node.Column));
					builder.Expanded = true;
				});
		}
		
		public override bool HasChildNodes (ITreeBuilder builder, object dataObject)
		{
			return true;
		}
	}
}