From 97bb249a9ff6ab5bd0ef63e79a94dc527da1e136 Mon Sep 17 00:00:00 2001
From: alcexhim <alcexhim@gmail.com>
Date: Wed, 10 Dec 2014 14:33:59 -0500
Subject: [PATCH] Added ability to clear the Messages list

---
 .../MainWindow.cs                                     |  9 +++++++++
 .../HostApplicationMessage.cs                         | 11 +++++++++++
 2 files changed, 20 insertions(+)

diff --git a/CSharp/Engines/WindowsForms/Engines/UniversalEditor.UserInterface.WindowsForms.DesktopApplication/MainWindow.cs b/CSharp/Engines/WindowsForms/Engines/UniversalEditor.UserInterface.WindowsForms.DesktopApplication/MainWindow.cs
index 283166ba..28844cd9 100644
--- a/CSharp/Engines/WindowsForms/Engines/UniversalEditor.UserInterface.WindowsForms.DesktopApplication/MainWindow.cs
+++ b/CSharp/Engines/WindowsForms/Engines/UniversalEditor.UserInterface.WindowsForms.DesktopApplication/MainWindow.cs
@@ -65,6 +65,7 @@ namespace UniversalEditor.UserInterface.WindowsForms
 			HostApplication.OutputWindow.TextCleared += OutputWindow_TextCleared;
 			HostApplication.Messages.MessageAdded += Messages_MessageAdded;
 			HostApplication.Messages.MessageRemoved += Messages_MessageRemoved;
+			HostApplication.Messages.MessagesCleared += Messages_MessagesCleared;
 
 			mnuBookmarksSep1.Visible = (Engine.CurrentEngine.BookmarksManager.FileNames.Count > 0);
 			foreach (string FileName in Engine.CurrentEngine.BookmarksManager.FileNames)
@@ -296,6 +297,14 @@ namespace UniversalEditor.UserInterface.WindowsForms
 				pnlErrorList.RefreshList();
 			}));
 		}
+		private void Messages_MessagesCleared(object sender, EventArgs e)
+		{
+			pnlErrorList.Invoke(new Action(delegate()
+			{
+				pnlErrorList.Messages.Clear();
+				pnlErrorList.RefreshList();
+			}));
+		}
 
 		private void tsmiBookmark_Click(object sender, EventArgs e)
 		{
diff --git a/CSharp/Libraries/UniversalEditor.UserInterface/HostApplicationMessage.cs b/CSharp/Libraries/UniversalEditor.UserInterface/HostApplicationMessage.cs
index ec9ad765..ecf33e89 100644
--- a/CSharp/Libraries/UniversalEditor.UserInterface/HostApplicationMessage.cs
+++ b/CSharp/Libraries/UniversalEditor.UserInterface/HostApplicationMessage.cs
@@ -92,6 +92,12 @@ namespace UniversalEditor.UserInterface
 				}
 			}
 
+			public event EventHandler MessagesCleared;
+			protected virtual void OnMessagesCleared(EventArgs e)
+			{
+				if (MessagesCleared != null) MessagesCleared(this, e);
+			}
+
 			protected override void InsertItem(int index, HostApplicationMessage item)
 			{
 				HostApplicationMessage message = item;
@@ -114,6 +120,11 @@ namespace UniversalEditor.UserInterface
 
 				OnMessageRemoved(new HostApplicationMessageModifiedEventArgs(message));
 			}
+			protected override void ClearItems()
+			{
+				base.ClearItems();
+				OnMessagesCleared(EventArgs.Empty);
+			}
 		}
 
 		private HostApplicationMessageSeverity mvarSeverity = HostApplicationMessageSeverity.None;