Added waiting to pause so the pause resume button work better

MatterControlLib/ApplicationView/ApplicationController.cs

@@ -2012,7 +2012,7 @@ namespace MatterHackers.MatterControl
 					}),
 					IsPaused = () =>
 					{
-						return printer.Connection.Paused;
+						return printer.Connection.Paused || printer.Connection.WaitingToPause;
 					},
 					PauseToolTip = "Pause Print".Localize(),
 					PauseText = "Pause".Localize(),

MatterControlLib/PartPreviewWindow/RunningTaskRow.cs

@@ -127,6 +127,7 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
 						pauseButton.Visible = true;
 						resumeButton.Visible = false;
 					}
+
 					if (this.HasBeenClosed)
 					{
 						UiThread.ClearInterval(runningInterval);

MatterControlLib/PrinterCommunication/Io/PauseHandlingStream.cs

@@ -159,6 +159,8 @@ namespace MatterHackers.MatterControl.PrinterCommunication.Io
 
 		public PrinterMove LastDestination { get { return lastDestination; } }
 
+		public bool WaitingToPause { get; private set; }
+
 		public void Add(string line)
 		{
 			// lock queue
@@ -191,6 +193,9 @@ namespace MatterHackers.MatterControl.PrinterCommunication.Io
 			// Add the pause_gcode to the loadedGCode.GCodeCommandQueue
 			string pauseGCode = printer.Settings.GetValue(SettingsKey.pause_gcode);
 
+			// set the state that we are waiting to pause
+			WaitingToPause = true;
+
 			// put in the gcode for pausing (if any)
 			InjectPauseGCode(pauseGCode);
 
@@ -283,6 +288,9 @@ namespace MatterHackers.MatterControl.PrinterCommunication.Io
 					printer.Connection.CommunicationState = CommunicationStates.Paused;
 				}
 
+				// remember that we are no longer waiting
+				WaitingToPause = false;
+
 				lineToSend = "";
 			}
 			else if (readOutOfFilament)

MatterControlLib/PrinterCommunication/PrinterConnection.cs

@@ -2857,6 +2857,7 @@ Make sure that your printer is turned on. Some printers will appear to be connec
 		public ExtrusionMultiplierStream ExtrusionMultiplierStream { get; private set; }
 
 		public FeedRateMultiplierStream FeedRateMultiplierStream { get; private set; }
+		public bool WaitingToPause => pauseHandlingStream?.WaitingToPause == true;
 
 		public void TurnOffPartCoolingFan()
 		{