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Assets/AmplifyShaderEditor/Plugins/Editor/Utils/GenericMessage.cs

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+// Amplify Shader Editor - Visual Shader Editing Tool
+// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
+
+using UnityEditor;
+using UnityEngine;
+using System.Collections.Generic;
+
+namespace AmplifyShaderEditor
+{
+	public enum MessageSeverity
+	{
+		Normal,
+		Warning,
+		Error
+	}
+	public class GenericMessageData
+	{
+		public string message;
+		public MessageSeverity severity;
+		public bool console;
+		public GenericMessageData( string msg, MessageSeverity svrty, bool csle )
+		{
+			message = msg;
+			severity = svrty;
+			console = csle;
+		}
+	}
+
+	class GenericMessageUI
+	{
+		public delegate void OnMessageDisplay( string message, MessageSeverity severity, bool console );
+		public event OnMessageDisplay OnMessageDisplayEvent;
+
+		private const double MESSAGE_TIME = 2;
+		private double m_currentMessageStartTime;
+		private Queue<GenericMessageData> m_messageQueue;
+		private bool m_displayingMessage;
+
+		public GenericMessageUI()
+		{
+			m_messageQueue = new Queue<GenericMessageData>();
+			m_displayingMessage = false;
+			m_currentMessageStartTime = EditorApplication.timeSinceStartup;
+		}
+		
+		public void Destroy()
+		{
+			m_messageQueue.Clear();
+			OnMessageDisplayEvent = null;
+		}
+
+		public void AddToQueue( string message, MessageSeverity severity, bool console )
+		{
+			m_messageQueue.Enqueue( new GenericMessageData( message, severity, console ) );
+		}
+
+		public void Log( string message )
+		{
+			m_messageQueue.Enqueue( new GenericMessageData( message, MessageSeverity.Normal, true ) );
+			Debug.Log( message );
+		}
+
+		public void LogError( string message )
+		{
+			m_messageQueue.Enqueue( new GenericMessageData( message, MessageSeverity.Error, true ) );
+			Debug.LogError( message );
+		}
+
+		public void LogWarning( string message )
+		{
+			m_messageQueue.Enqueue( new GenericMessageData( message, MessageSeverity.Warning, true ) );
+			Debug.LogWarning( message );
+		}
+
+		public void CheckForMessages()
+		{
+			if ( m_displayingMessage )
+			{
+				double timeLeft = EditorApplication.timeSinceStartup - m_currentMessageStartTime;
+				if ( timeLeft > MESSAGE_TIME )
+				{
+					m_displayingMessage = false;
+				}
+			}
+
+			if ( !m_displayingMessage )
+			{
+				if ( m_messageQueue.Count > 0 )
+				{
+					m_displayingMessage = true;
+					GenericMessageData data = m_messageQueue.Dequeue();
+					m_currentMessageStartTime = EditorApplication.timeSinceStartup;
+
+					if ( OnMessageDisplayEvent != null )
+						OnMessageDisplayEvent( data.message, data.severity, data.console );
+				}
+			}
+		}
+
+		public void CleanUpMessageStack()
+		{
+			m_displayingMessage = false;
+			m_messageQueue.Clear();
+		}
+
+		public void StartMessageCounter()
+		{
+			m_displayingMessage = true;
+			m_currentMessageStartTime = EditorApplication.timeSinceStartup;
+		}
+
+		public bool DisplayingMessage
+		{
+			get { return ( m_displayingMessage || m_messageQueue.Count > 0 ); }
+		}
+	}
+}