Split the driver code, in preparation for a new Windows console driver

Terminal.Gui/Driver.cs

@@ -1,1350 +0,0 @@
-//
-// Driver.cs: Abstract and concrete interfaces to the console (curses or console)
-//
-// Authors:
-//   Miguel de Icaza ([email protected])
-//
-using System;
-using System.Collections.Generic;
-using System.Runtime.InteropServices;
-using Mono.Terminal;
-using NStack;
-using Unix.Terminal;
-
-namespace Terminal.Gui {
-
-	/// <summary>
-	/// Basic colors that can be used to set the foreground and background colors in console applications.  These can only be
-	/// </summary>
-	public enum Color {
-		/// <summary>
-		/// The black color.
-		/// </summary>
-		Black,
-		/// <summary>
-		/// The blue color.
-		/// </summary>
-		Blue,
-		/// <summary>
-		/// The green color.
-		/// </summary>
-		Green,
-		/// <summary>
-		/// The cyan color.
-		/// </summary>
-		Cyan,
-		/// <summary>
-		/// The red color.
-		/// </summary>
-		Red,
-		/// <summary>
-		/// The magenta color.
-		/// </summary>
-		Magenta,
-		/// <summary>
-		/// The brown color.
-		/// </summary>
-		Brown,
-		/// <summary>
-		/// The gray color.
-		/// </summary>
-		Gray,
-		/// <summary>
-		/// The dark gray color.
-		/// </summary>
-		DarkGray,
-		/// <summary>
-		/// The bright bBlue color.
-		/// </summary>
-		BrightBlue,
-		/// <summary>
-		/// The bright green color.
-		/// </summary>
-		BrightGreen,
-		/// <summary>
-		/// The brigh cyan color.
-		/// </summary>
-		BrighCyan,
-		/// <summary>
-		/// The bright red color.
-		/// </summary>
-		BrightRed,
-		/// <summary>
-		/// The bright magenta color.
-		/// </summary>
-		BrightMagenta,
-		/// <summary>
-		/// The bright yellow color.
-		/// </summary>
-		BrightYellow,
-		/// <summary>
-		/// The White color.
-		/// </summary>
-		White
-	}
-
-	/// <summary>
-	/// Attributes are used as elements that contain both a foreground and a background or platform specific features
-	/// </summary>
-	/// <remarks>
-	///   Attributes are needed to map colors to terminal capabilities that might lack colors, on color
-	///   scenarios, they encode both the foreground and the background color and are used in the ColorScheme
-	///   class to define color schemes that can be used in your application.
-	/// </remarks>
-	public struct Attribute {
-		internal int value;
-
-		/// <summary>
-		/// Initializes a new instance of the <see cref="T:Terminal.Gui.Attribute"/> struct.
-		/// </summary>
-		/// <param name="value">Value.</param>
-		public Attribute (int value)
-		{
-			this.value = value;
-		}
-
-		public static implicit operator int (Attribute c) => c.value;
-		public static implicit operator Attribute (int v) => new Attribute (v);
-	}
-
-	/// <summary>
-	/// Color scheme definitions, they cover some common scenarios and are used
-	/// typically in toplevel containers to set the scheme that is used by all the
-	/// views contained inside.
-	/// </summary>
-	public class ColorScheme {
-		/// <summary>
-		/// The default color for text, when the view is not focused.
-		/// </summary>
-		public Attribute Normal;
-		/// <summary>
-		/// The color for text when the view has the focus.
-		/// </summary>
-		public Attribute Focus;
-
-		/// <summary>
-		/// The color for the hotkey when a view is not focused
-		/// </summary>
-		public Attribute HotNormal;
-
-		/// <summary>
-		/// The color for the hotkey when the view is focused.
-		/// </summary>
-		public Attribute HotFocus;
-	}
-
-	/// <summary>
-	/// The default ColorSchemes for the application.
-	/// </summary>
-	public static class Colors {
-		/// <summary>
-		/// The base color scheme, for the default toplevel views.
-		/// </summary>
-		public static ColorScheme Base;
-		/// <summary>
-		/// The dialog color scheme, for standard popup dialog boxes
-		/// </summary>
-		public static ColorScheme Dialog;
-
-		/// <summary>
-		/// The menu bar color
-		/// </summary>
-		public static ColorScheme Menu;
-
-		/// <summary>
-		/// The color scheme for showing errors.
-		/// </summary>
-		public static ColorScheme Error;
-
-	}
-
-	/// <summary>
-	/// Special characters that can be drawn with Driver.AddSpecial.
-	/// </summary>
-	public enum SpecialChar {
-		/// <summary>
-		/// Horizontal line character.
-		/// </summary>
-		HLine,
-
-		/// <summary>
-		/// Vertical line character.
-		/// </summary>
-		VLine,
-
-		/// <summary>
-		/// Stipple pattern
-		/// </summary>
-		Stipple,
-
-		/// <summary>
-		/// Diamond character
-		/// </summary>
-		Diamond,
-
-		/// <summary>
-		/// Upper left corner
-		/// </summary>
-		ULCorner,
-
-		/// <summary>
-		/// Lower left corner
-		/// </summary>
-		LLCorner,
-
-		/// <summary>
-		/// Upper right corner
-		/// </summary>
-		URCorner,
-
-		/// <summary>
-		/// Lower right corner
-		/// </summary>
-		LRCorner,
-
-		/// <summary>
-		/// Left tee
-		/// </summary>
-		LeftTee,
-
-		/// <summary>
-		/// Right tee
-		/// </summary>
-		RightTee,
-
-		/// <summary>
-		/// Top tee 
-		/// </summary>
-		TopTee,
-
-		/// <summary>
-		/// The bottom tee.
-		/// </summary>
-		BottomTee,
-
-	}
-
-	/// <summary>
-	/// ConsoleDriver is an abstract class that defines the requirements for a console driver.   One implementation if the CursesDriver, and another one uses the .NET Console one.
-	/// </summary>
-	public abstract class ConsoleDriver {
-		/// <summary>
-		/// The current number of columns in the terminal.
-		/// </summary>
-		public abstract int Cols { get; }
-		/// <summary>
-		/// The current number of rows in the terminal.
-		/// </summary>
-		public abstract int Rows { get; }
-		/// <summary>
-		/// Initializes the driver
-		/// </summary>
-		/// <param name="terminalResized">Method to invoke when the terminal is resized.</param>
-		public abstract void Init (Action terminalResized);
-		/// <summary>
-		/// Moves the cursor to the specified column and row.
-		/// </summary>
-		/// <param name="col">Column to move the cursor to.</param>
-		/// <param name="row">Row to move the cursor to.</param>
-		public abstract void Move (int col, int row);
-		/// <summary>
-		/// Adds the specified rune to the display at the current cursor position
-		/// </summary>
-		/// <param name="rune">Rune to add.</param>
-		public abstract void AddRune (Rune rune);
-		/// <summary>
-		/// Adds the specified 
-		/// </summary>
-		/// <param name="str">String.</param>
-		public abstract void AddStr (ustring str);
-		public abstract void PrepareToRun (MainLoop mainLoop, Action<KeyEvent> keyHandler, Action<MouseEvent> mouseHandler);
-
-		/// <summary>
-		/// Updates the screen to reflect all the changes that have been done to the display buffer
-		/// </summary>
-		public abstract void Refresh ();
-
-		/// <summary>
-		/// Updates the location of the cursor position
-		/// </summary>
-		public abstract void UpdateCursor ();
-
-		/// <summary>
-		/// Ends the execution of the console driver.
-		/// </summary>
-		public abstract void End ();
-
-		/// <summary>
-		/// Redraws the physical screen with the contents that have been queued up via any of the printing commands.
-		/// </summary>
-		public abstract void UpdateScreen ();
-
-		/// <summary>
-		/// Selects the specified attribute as the attribute to use for future calls to AddRune, AddString.
-		/// </summary>
-		/// <param name="c">C.</param>
-		public abstract void SetAttribute (Attribute c);
-
-		// Set Colors from limit sets of colors
-		public abstract void SetColors (ConsoleColor foreground, ConsoleColor background);
-
-		// Advanced uses - set colors to any pre-set pairs, you would need to init_color
-		// that independently with the R, G, B values.
-		/// <summary>
-		/// Advanced uses - set colors to any pre-set pairs, you would need to init_color 
-		/// that independently with the R, G, B values.
-		/// </summary>
-		/// <param name="foregroundColorId">Foreground color identifier.</param>
-		/// <param name="backgroundColorId">Background color identifier.</param>
-		public abstract void SetColors (short foregroundColorId, short backgroundColorId);
-
-		/// <summary>
-		/// Draws a frame on the specified region with the specified padding around the frame.
-		/// </summary>
-		/// <param name="region">Region where the frame will be drawn..</param>
-		/// <param name="padding">Padding to add on the sides.</param>
-		/// <param name="fill">If set to <c>true</c> it will clear the contents with the current color, otherwise the contents will be left untouched.</param>
-		public virtual void DrawFrame (Rect region, int padding, bool fill)
-		{
-			int width = region.Width;
-			int height = region.Height;
-			int b;
-			int fwidth = width - padding * 2;
-			int fheight = height - 1 - padding;
-
-			Move (region.X, region.Y);
-			if (padding > 0) {
-				for (int l = 0; l < padding; l++)
-					for (b = 0; b < width; b++)
-						AddRune (' ');
-			}
-			Move (region.X, region.Y + padding);
-			for (int c = 0; c < padding; c++)
-				AddRune (' ');
-			AddRune (ULCorner);
-			for (b = 0; b < fwidth - 2; b++)
-				AddRune (HLine);
-			AddRune (URCorner);
-			for (int c = 0; c < padding; c++)
-				AddRune (' ');
-
-			for (b = 1 + padding; b < fheight; b++) {
-				Move (region.X, region.Y + b);
-				for (int c = 0; c < padding; c++)
-					AddRune (' ');
-				AddRune (VLine);
-				if (fill) {
-					for (int x = 1; x < fwidth - 1; x++)
-						AddRune (' ');
-				} else
-					Move (region.X + fwidth - 1, region.Y + b);
-				AddRune (VLine);
-				for (int c = 0; c < padding; c++)
-					AddRune (' ');
-			}
-			Move (region.X, region.Y + fheight);
-			for (int c = 0; c < padding; c++)
-				AddRune (' ');
-			AddRune (LLCorner);
-			for (b = 0; b < fwidth - 2; b++)
-				AddRune (HLine);
-			AddRune (LRCorner);
-			for (int c = 0; c < padding; c++)
-				AddRune (' ');
-			if (padding > 0) {
-				Move (region.X, region.Y + height - padding);
-				for (int l = 0; l < padding; l++)
-					for (b = 0; b < width; b++)
-						AddRune (' ');
-			}			
-		}
-
-
-		/// <summary>
-		/// Suspend the application, typically needs to save the state, suspend the app and upon return, reset the console driver.
-		/// </summary>
-		public abstract void Suspend ();
-
-		Rect clip;
-
-		/// <summary>
-		/// Controls the current clipping region that AddRune/AddStr is subject to.
-		/// </summary>
-		/// <value>The clip.</value>
-		public Rect Clip {
-			get => clip;
-			set => this.clip = value;
-		}
-
-		public abstract void StartReportingMouseMoves ();
-		public abstract void StopReportingMouseMoves ();
-
-		/// <summary>
-		/// Disables the cooked event processing from the mouse driver.  At startup, it is assumed mouse events are cooked.
-		/// </summary>
-		public abstract void UncookMouse ();
-
-		/// <summary>
-		/// Enables the cooked event processing from the mouse driver
-		/// </summary>
-		public abstract void CookMouse ();
-
-		/// <summary>
-		/// Horizontal line character.
-		/// </summary>
-		public Rune HLine;
-
-		/// <summary>
-		/// Vertical line character.
-		/// </summary>
-		public Rune VLine;
-
-		/// <summary>
-		/// Stipple pattern
-		/// </summary>
-		public Rune Stipple;
-
-		/// <summary>
-		/// Diamond character
-		/// </summary>
-		public Rune Diamond;
-
-		/// <summary>
-		/// Upper left corner
-		/// </summary>
-		public Rune ULCorner;
-
-		/// <summary>
-		/// Lower left corner
-		/// </summary>
-		public Rune LLCorner;
-
-		/// <summary>
-		/// Upper right corner
-		/// </summary>
-		public Rune URCorner;
-
-		/// <summary>
-		/// Lower right corner
-		/// </summary>
-		public Rune LRCorner;
-
-		/// <summary>
-		/// Left tee
-		/// </summary>
-		public Rune LeftTee;
-
-		/// <summary>
-		/// Right tee
-		/// </summary>
-		public Rune RightTee;
-
-		/// <summary>
-		/// Top tee 
-		/// </summary>
-		public Rune TopTee;
-
-		/// <summary>
-		/// The bottom tee.
-		/// </summary>
-		public Rune BottomTee;
-	}
-
-	/// <summary>
-	/// This is the Curses driver for the gui.cs/Terminal framework.
-	/// </summary>
-	internal class CursesDriver : ConsoleDriver {
-		Action terminalResized;
-
-		public override int Cols => Curses.Cols;
-		public override int Rows => Curses.Lines;
-
-		// Current row, and current col, tracked by Move/AddRune only
-		int ccol, crow;
-		bool needMove;
-		public override void Move (int col, int row)
-		{
-			ccol = col;
-			crow = row;
-
-			if (Clip.Contains (col, row)) {
-				Curses.move (row, col);
-				needMove = false;
-			} else {
-				Curses.move (Clip.Y, Clip.X);
-				needMove = true;
-			}
-		}
-
-		static bool sync;
-		public override void AddRune (Rune rune)
-		{
-			if (Clip.Contains (ccol, crow)) {
-				if (needMove) {
-					Curses.move (crow, ccol);
-					needMove = false;
-				}
-				Curses.addch ((int)(uint)rune);
-			} else
-				needMove = true;
-			if (sync)
-				Application.Driver.Refresh ();
-			ccol++;
-		}
-
-		public override void AddStr (ustring str)
-		{
-			// TODO; optimize this to determine if the str fits in the clip region, and if so, use Curses.addstr directly
-			foreach (var rune in str)
-				AddRune (rune);
-		}
-
-		public override void Refresh () => Curses.refresh ();
-		public override void UpdateCursor () => Curses.refresh ();
-		public override void End () => Curses.endwin ();
-		public override void UpdateScreen () => window.redrawwin ();
-		public override void SetAttribute (Attribute c) => Curses.attrset (c.value);
-		public Curses.Window window;
-
-		static short last_color_pair = 16;
-		static Attribute MakeColor (short f, short b)
-		{
-			Curses.InitColorPair (++last_color_pair, f, b);
-			return new Attribute () { value = Curses.ColorPair (last_color_pair) };
-		}
-
-		int [,] colorPairs = new int [16, 16];
-
-		public override void SetColors (ConsoleColor foreground, ConsoleColor background)
-		{
-			int f = (short)foreground;
-			int b = (short)background;
-			var v = colorPairs [f, b];
-			if ((v & 0x10000) == 0) {
-				b = b & 0x7;
-				bool bold = (f & 0x8) != 0;
-				f = f & 0x7;
-
-				v = MakeColor ((short)f, (short)b) | (bold ? Curses.A_BOLD : 0);
-				colorPairs [(int)foreground, (int)background] = v | 0x1000;
-			}
-			SetAttribute (v & 0xffff);
-		}
-
-		Dictionary<int, int> rawPairs = new Dictionary<int, int> ();
-		public override void SetColors (short foreColorId, short backgroundColorId)
-		{
-			int key = (((ushort)foreColorId << 16)) | (ushort)backgroundColorId;
-			if (!rawPairs.TryGetValue (key, out var v)) {
-				v = MakeColor (foreColorId, backgroundColorId);
-				rawPairs [key] = v;
-			}
-			SetAttribute (v);
-		}
-
-		static Key MapCursesKey (int cursesKey)
-		{
-			switch (cursesKey) {
-			case Curses.KeyF1: return Key.F1;
-			case Curses.KeyF2: return Key.F2;
-			case Curses.KeyF3: return Key.F3;
-			case Curses.KeyF4: return Key.F4;
-			case Curses.KeyF5: return Key.F5;
-			case Curses.KeyF6: return Key.F6;
-			case Curses.KeyF7: return Key.F7;
-			case Curses.KeyF8: return Key.F8;
-			case Curses.KeyF9: return Key.F9;
-			case Curses.KeyF10: return Key.F10;
-			case Curses.KeyUp: return Key.CursorUp;
-			case Curses.KeyDown: return Key.CursorDown;
-			case Curses.KeyLeft: return Key.CursorLeft;
-			case Curses.KeyRight: return Key.CursorRight;
-			case Curses.KeyHome: return Key.Home;
-			case Curses.KeyEnd: return Key.End;
-			case Curses.KeyNPage: return Key.PageDown;
-			case Curses.KeyPPage: return Key.PageUp;
-			case Curses.KeyDeleteChar: return Key.DeleteChar;
-			case Curses.KeyInsertChar: return Key.InsertChar;
-			case Curses.KeyBackTab: return Key.BackTab;
-			case Curses.KeyBackspace: return Key.Backspace;
-			default: return Key.Unknown;
-			}
-		}
-
-		static MouseEvent ToDriverMouse (Curses.MouseEvent cev)
-		{
-			return new MouseEvent () {
-				X = cev.X,
-				Y = cev.Y,
-				Flags = (MouseFlags)cev.ButtonState
-			};
-		}
-
-		void ProcessInput (Action<KeyEvent> keyHandler, Action<MouseEvent> mouseHandler)
-		{
-			int wch;
-			var code = Curses.get_wch (out wch);
-			if (code == Curses.ERR)
-				return;
-			if (code == Curses.KEY_CODE_YES) {
-				if (wch == Curses.KeyResize) {
-					if (Curses.CheckWinChange ()) {
-						terminalResized ();
-						return;
-					}
-				}
-				if (wch == Curses.KeyMouse) {
-					Curses.MouseEvent ev;
-					Curses.getmouse (out ev);
-					mouseHandler (ToDriverMouse (ev));
-					return;
-				}
-				keyHandler (new KeyEvent (MapCursesKey (wch)));
-				return;
-			} 
-
-			// Special handling for ESC, we want to try to catch ESC+letter to simulate alt-letter as well as Alt-Fkey
-			if (wch == 27) {
-				Curses.timeout (200);
-
-				code = Curses.get_wch (out wch);
-				if (code == Curses.KEY_CODE_YES)
-					keyHandler (new KeyEvent (Key.AltMask | MapCursesKey (wch)));
-				if (code == 0) {
-					KeyEvent key;
-
-					// The ESC-number handling, debatable.
-					if (wch >= '1' && wch <= '9')
-						key = new KeyEvent ((Key)((int)Key.F1 + (wch - '0' - 1)));
-					else if (wch == '0')
-						key = new KeyEvent (Key.F10);
-					else if (wch == 27)
-						key = new KeyEvent ((Key)wch);
-					else
-						key = new KeyEvent (Key.AltMask | (Key)wch);
-					keyHandler (key);
-				} else
-					keyHandler (new KeyEvent (Key.Esc));
-			} else
-				keyHandler (new KeyEvent ((Key)wch));
-		}
-
-		public override void PrepareToRun (MainLoop mainLoop, Action<KeyEvent> keyHandler, Action<MouseEvent> mouseHandler)
-		{
-			Curses.timeout (-1);
-
-			mainLoop.AddWatch (0, Mono.Terminal.MainLoop.Condition.PollIn, x => {
-				ProcessInput (keyHandler, mouseHandler);
-				return true;
-			});
-
-		}
-
-		Curses.Event oldMouseEvents, reportableMouseEvents;
-		public override void Init (Action terminalResized)
-		{
-			if (window != null)
-				return;
-
-			try {
-				window = Curses.initscr ();
-			} catch (Exception e) {
-				Console.WriteLine ("Curses failed to initialize, the exception is: " + e);
-			}
-			Curses.raw ();
-			Curses.noecho ();
-
-			Curses.Window.Standard.keypad (true);
-			reportableMouseEvents = Curses.mousemask (Curses.Event.AllEvents | Curses.Event.ReportMousePosition, out oldMouseEvents);
-			this.terminalResized = terminalResized;
-			StartReportingMouseMoves ();
-
-			HLine = Curses.ACS_HLINE;
-			VLine = Curses.ACS_VLINE;
-			Stipple = Curses.ACS_CKBOARD;
-			Diamond = Curses.ACS_DIAMOND;
-			ULCorner = Curses.ACS_ULCORNER;
-			LLCorner = Curses.ACS_LLCORNER;
-			URCorner = Curses.ACS_URCORNER;
-			LRCorner = Curses.ACS_LRCORNER;
-			LeftTee = Curses.ACS_LTEE;
-			RightTee = Curses.ACS_RTEE;
-			TopTee = Curses.ACS_TTEE;
-			BottomTee = Curses.ACS_BTEE;
-
-			Colors.Base = new ColorScheme ();
-			Colors.Dialog = new ColorScheme ();
-			Colors.Menu = new ColorScheme ();
-			Colors.Error = new ColorScheme ();
-			Clip = new Rect (0, 0, Cols, Rows);
-			if (Curses.HasColors) {
-				Curses.StartColor ();
-				Curses.UseDefaultColors ();
-
-				Colors.Base.Normal = MakeColor (Curses.COLOR_WHITE, Curses.COLOR_BLUE);
-				Colors.Base.Focus = MakeColor (Curses.COLOR_BLACK, Curses.COLOR_CYAN);
-				Colors.Base.HotNormal = Curses.A_BOLD | MakeColor (Curses.COLOR_YELLOW, Curses.COLOR_BLUE);
-				Colors.Base.HotFocus = Curses.A_BOLD | MakeColor (Curses.COLOR_YELLOW, Curses.COLOR_CYAN);
-
-				// Focused, 
-				//    Selected, Hot: Yellow on Black
-				//    Selected, text: white on black
-				//    Unselected, hot: yellow on cyan
-				//    unselected, text: same as unfocused
-				Colors.Menu.HotFocus = Curses.A_BOLD | MakeColor (Curses.COLOR_YELLOW, Curses.COLOR_BLACK);
-				Colors.Menu.Focus = Curses.A_BOLD | MakeColor (Curses.COLOR_WHITE, Curses.COLOR_BLACK);
-				Colors.Menu.HotNormal = Curses.A_BOLD | MakeColor (Curses.COLOR_YELLOW, Curses.COLOR_CYAN);
-				Colors.Menu.Normal = Curses.A_BOLD | MakeColor (Curses.COLOR_WHITE, Curses.COLOR_CYAN);
-
-				Colors.Dialog.Normal = MakeColor (Curses.COLOR_BLACK, Curses.COLOR_WHITE);
-				Colors.Dialog.Focus = MakeColor (Curses.COLOR_BLACK, Curses.COLOR_CYAN);
-				Colors.Dialog.HotNormal = MakeColor (Curses.COLOR_BLUE, Curses.COLOR_WHITE);
-				Colors.Dialog.HotFocus = MakeColor (Curses.COLOR_BLUE, Curses.COLOR_CYAN);
-
-				Colors.Error.Normal = Curses.A_BOLD | MakeColor (Curses.COLOR_WHITE, Curses.COLOR_RED);
-				Colors.Error.Focus = MakeColor (Curses.COLOR_BLACK, Curses.COLOR_WHITE);
-				Colors.Error.HotNormal = Curses.A_BOLD | MakeColor (Curses.COLOR_YELLOW, Curses.COLOR_RED);
-				Colors.Error.HotFocus = Colors.Error.HotNormal;
-			} else {
-				Colors.Base.Normal = Curses.A_NORMAL;
-				Colors.Base.Focus = Curses.A_REVERSE;
-				Colors.Base.HotNormal = Curses.A_BOLD;
-				Colors.Base.HotFocus = Curses.A_BOLD | Curses.A_REVERSE;
-				Colors.Menu.Normal = Curses.A_REVERSE;
-				Colors.Menu.Focus = Curses.A_NORMAL;
-				Colors.Menu.HotNormal = Curses.A_BOLD;
-				Colors.Menu.HotFocus = Curses.A_NORMAL;
-				Colors.Dialog.Normal = Curses.A_REVERSE;
-				Colors.Dialog.Focus = Curses.A_NORMAL;
-				Colors.Dialog.HotNormal = Curses.A_BOLD;
-				Colors.Dialog.HotFocus = Curses.A_NORMAL;
-				Colors.Error.Normal = Curses.A_BOLD;
-				Colors.Error.Focus = Curses.A_BOLD | Curses.A_REVERSE;
-				Colors.Error.HotNormal = Curses.A_BOLD | Curses.A_REVERSE;
-				Colors.Error.HotFocus = Curses.A_REVERSE;
-			}
-		}
-
-		public override void Suspend ()
-		{
-			StopReportingMouseMoves ();
-			Platform.Suspend ();
-			Curses.Window.Standard.redrawwin ();
-			Curses.refresh ();
-			StartReportingMouseMoves ();
-		}
-
-		public override void StartReportingMouseMoves()
-		{
-			Console.Out.Write ("\x1b[?1003h");
-			Console.Out.Flush ();
-		}
-
-		public override void StopReportingMouseMoves()
-		{
-			Console.Out.Write ("\x1b[?1003l");
-			Console.Out.Flush ();
-		}
-
-		int lastMouseInterval;
-		bool mouseGrabbed;
-
-		public override void UncookMouse()
-		{
-			if (mouseGrabbed)
-				return;
-			lastMouseInterval = Curses.mouseinterval (0);
-			mouseGrabbed = true;
-		}
-
-		public override void CookMouse()
-		{
-			mouseGrabbed = false;
-			Curses.mouseinterval (lastMouseInterval);
-		}
-	}
-
-	internal static class Platform {
-		[DllImport ("libc")]
-		static extern int uname (IntPtr buf);
-
-		[DllImport ("libc")]
-		static extern int killpg (int pgrp, int pid);
-
-		static int suspendSignal;
-
-		static int GetSuspendSignal ()
-		{
-			if (suspendSignal != 0)
-				return suspendSignal;
-			
-			IntPtr buf = Marshal.AllocHGlobal (8192);
-			if (uname (buf) != 0) {
-				Marshal.FreeHGlobal (buf);
-				suspendSignal = -1;
-				return suspendSignal;
-			}
-			try {
-				switch (Marshal.PtrToStringAnsi (buf)) {
-				case "Darwin":
-				case "DragonFly":
-				case "FreeBSD":
-				case "NetBSD":
-				case "OpenBSD":
-					suspendSignal = 18;
-					break;
-				case "Linux":
-					// TODO: should fetch the machine name and 
-					// if it is MIPS return 24
-					suspendSignal = 20;
-					break;
-				case "Solaris":
-					suspendSignal = 24;
-					break;
-				default:
-					suspendSignal = -1;
-					break;
-				}
-				return suspendSignal;
-			} finally {
-				Marshal.FreeHGlobal (buf);
-			}
-		}
-
-		/// <summary>
-		/// Suspends the process by sending SIGTSTP to itself
-		/// </summary>
-		/// <returns>The suspend.</returns>
-		static public bool Suspend ()
-		{
-			int signal = GetSuspendSignal ();
-			if (signal == -1)
-				return false;
-			killpg (0, signal);
-			return true;
-		}
-	}
-
-	internal class NetDriver : ConsoleDriver {
-		int cols, rows;
-		public override int Cols => cols;
-		public override int Rows => rows;
-
-		// The format is rows, columns and 3 values on the last column: Rune, Attribute and Dirty Flag
-		int [,,] contents;
-		bool [] dirtyLine;
-
-		void UpdateOffscreen ()
-		{
-			int cols = Cols;
-			int rows = Rows;
-
-			contents = new int [rows, cols, 3];
-			for (int r = 0; r < rows; r++) {
-				for (int c = 0; c < cols; c++) {
-					contents [r, c, 0] = ' ';
-					contents [r, c, 1] = MakeColor (ConsoleColor.Gray, ConsoleColor.Black);
-					contents [r, c, 2] = 0;
-				}
-			}
-			dirtyLine = new bool [rows];
-			for (int row = 0; row < rows; row++)
-				dirtyLine [row] = true;
-		}
-
-		static bool sync;
-
-		public NetDriver ()
-		{
-			cols = Console.WindowWidth;
-			rows = Console.WindowHeight - 1;
-			UpdateOffscreen ();
-		}
-
-		bool needMove;
-		// Current row, and current col, tracked by Move/AddCh only
-		int ccol, crow;
-		public override void Move (int col, int row)
-		{
-			ccol = col;
-			crow = row;
-
-			if (Clip.Contains (col, row)) {
-				Console.CursorTop = row;
-				Console.CursorLeft = col;
-				needMove = false;
-			} else {
-				Console.CursorTop = Clip.Y;
-				Console.CursorLeft = Clip.X;
-				needMove = true;
-			}
-
-		}
-
-		public override void AddRune (Rune rune)
-		{
-			if (Clip.Contains (ccol, crow)) {
-				if (needMove) {
-					//Console.CursorLeft = ccol;
-					//Console.CursorTop = crow;
-					needMove = false;
-				}
-				contents [crow, ccol, 0] = (int)(uint)rune;
-				contents [crow, ccol, 1] = currentAttribute;
-				contents [crow, ccol, 2] = 1;
-				dirtyLine [crow] = true;
-			} else
-				needMove = true;
-			ccol++;
-			if (ccol == Cols) {
-				ccol = 0;
-				if (crow + 1 < Rows)
-					crow++;
-			}
-			if (sync)
-				UpdateScreen ();
-		}
-
-		public override void AddStr (ustring str)
-		{
-			foreach (var rune in str)
-				AddRune (rune);
-		}
-
-		public override void End ()
-		{
-			Console.ResetColor ();
-			Console.Clear ();
-		}
-
-		static Attribute MakeColor (ConsoleColor f, ConsoleColor b)
-		{
-			// Encode the colors into the int value.
-			return new Attribute () { value = ((((int)f) & 0xffff) << 16) | (((int)b) & 0xffff) };
-		}
-
-
-		public override void Init (Action terminalResized)
-		{
-			Colors.Base = new ColorScheme ();
-			Colors.Dialog = new ColorScheme ();
-			Colors.Menu = new ColorScheme ();
-			Colors.Error = new ColorScheme ();
-			Clip = new Rect (0, 0, Cols, Rows);
-
-			HLine =  '\u2500';
-			VLine =  '\u2502';
-			Stipple =  '\u2592';
-			Diamond =  '\u25c6';
-			ULCorner =  '\u250C';
-			LLCorner =  '\u2514';
-			URCorner =  '\u2510';
-			LRCorner =  '\u2518';
-			LeftTee =  '\u251c';
-			RightTee =  '\u2524';
-			TopTee =  '\u22a4';
-			BottomTee =  '\u22a5';
-			
-			Colors.Base.Normal = MakeColor (ConsoleColor.White, ConsoleColor.Blue);
-			Colors.Base.Focus = MakeColor (ConsoleColor.Black, ConsoleColor.Cyan);
-			Colors.Base.HotNormal = MakeColor (ConsoleColor.Yellow, ConsoleColor.Blue);
-			Colors.Base.HotFocus = MakeColor (ConsoleColor.Yellow, ConsoleColor.Cyan);
-
-			// Focused, 
-			//    Selected, Hot: Yellow on Black
-			//    Selected, text: white on black
-			//    Unselected, hot: yellow on cyan
-			//    unselected, text: same as unfocused
-			Colors.Menu.HotFocus = MakeColor (ConsoleColor.Yellow, ConsoleColor.Black);
-			Colors.Menu.Focus = MakeColor (ConsoleColor.White, ConsoleColor.Black);
-			Colors.Menu.HotNormal = MakeColor (ConsoleColor.Yellow, ConsoleColor.Cyan);
-			Colors.Menu.Normal = MakeColor (ConsoleColor.White, ConsoleColor.Cyan);
-
-			Colors.Dialog.Normal = MakeColor (ConsoleColor.Black, ConsoleColor.Gray);
-			Colors.Dialog.Focus = MakeColor (ConsoleColor.Black, ConsoleColor.Cyan);
-			Colors.Dialog.HotNormal = MakeColor (ConsoleColor.Blue, ConsoleColor.Gray);
-			Colors.Dialog.HotFocus = MakeColor (ConsoleColor.Blue, ConsoleColor.Cyan);
-
-			Colors.Error.Normal = MakeColor (ConsoleColor.White, ConsoleColor.Red);
-			Colors.Error.Focus = MakeColor (ConsoleColor.Black, ConsoleColor.Gray);
-			Colors.Error.HotNormal = MakeColor (ConsoleColor.Yellow, ConsoleColor.Red);
-			Colors.Error.HotFocus = Colors.Error.HotNormal;
-			Console.Clear ();
-		}
-
-		int redrawColor = -1;
-		void SetColor (int color)
-		{
-			redrawColor = color;
-			Console.BackgroundColor = (ConsoleColor)(color & 0xffff);
-			Console.ForegroundColor = (ConsoleColor)((color >> 16) & 0xffff);
-		}
-
-		public override void UpdateScreen ()
-		{
-			int rows = Rows;
-			int cols = Cols;
-
-			Console.CursorTop = 0;
-			Console.CursorLeft = 0;
-			for (int row = 0; row < rows; row++) {
-				dirtyLine [row] = false;
-				for (int col = 0; col < cols; col++) {
-					contents [row, col, 2] = 0;
-					var color = contents [row, col, 1];
-					if (color != redrawColor)
-						SetColor (color);
-					Console.Write ((char)contents [row, col, 0]);
-				}
-			}
-		}
-
-		public override void Refresh ()
-		{
-			int rows = Rows;
-			int cols = Cols;
-
-			var savedRow = Console.CursorTop;
-			var savedCol = Console.CursorLeft;
-			for (int row = 0; row < rows; row++) {
-				if (!dirtyLine [row])
-					continue;
-				dirtyLine [row] = false;
-				for (int col = 0; col < cols; col++) {
-					if (contents [row, col, 2] != 1)
-						continue;
-
-					Console.CursorTop = row;
-					Console.CursorLeft = col;
-					for (; col < cols && contents [row, col, 2] == 1; col++) {
-						var color = contents [row, col, 1];
-						if (color != redrawColor)
-							SetColor (color);
-
-						Console.Write ((char)contents [row, col, 0]);
-						contents [row, col, 2] = 0;
-					}
-				}
-			}
-			Console.CursorTop = savedRow;
-			Console.CursorLeft = savedCol;
-		}
-
-		public override void UpdateCursor ()
-		{
-			//
-		}
-
-		public override void StartReportingMouseMoves()
-		{
-		}
-
-		public override void StopReportingMouseMoves ()
-		{
-		}
-
-		public override void Suspend ()
-		{
-		}
-
-		int currentAttribute;
-		public override void SetAttribute (Attribute c)
-		{
-			currentAttribute = c.value;
-		}
-
-		Key MapKey (ConsoleKeyInfo keyInfo)
-		{
-			switch (keyInfo.Key) {
-			case ConsoleKey.Escape:
-				return Key.Esc;
-			case ConsoleKey.Tab:
-				return Key.Tab;
-			case ConsoleKey.Home:
-				return Key.Home;
-			case ConsoleKey.End:
-				return Key.End;
-			case ConsoleKey.LeftArrow:
-				return Key.CursorLeft;
-			case ConsoleKey.RightArrow:
-				return Key.CursorRight;
-			case ConsoleKey.UpArrow:
-				return Key.CursorUp;
-			case ConsoleKey.DownArrow:
-				return Key.CursorDown;
-			case ConsoleKey.PageUp:
-				return Key.PageUp;
-			case ConsoleKey.PageDown:
-				return Key.PageDown;
-			case ConsoleKey.Enter:
-				return Key.Enter;
-			case ConsoleKey.Spacebar:
-				return Key.Space;
-			case ConsoleKey.Backspace:
-				return Key.Backspace;
-			case ConsoleKey.Delete:
-				return Key.Delete;
-
-			case ConsoleKey.Oem1:
-			case ConsoleKey.Oem2:
-			case ConsoleKey.Oem3:
-			case ConsoleKey.Oem4:
-			case ConsoleKey.Oem5:
-			case ConsoleKey.Oem6:
-			case ConsoleKey.Oem7:
-			case ConsoleKey.Oem8:
-			case ConsoleKey.Oem102:
-			case ConsoleKey.OemPeriod:
-			case ConsoleKey.OemComma:
-			case ConsoleKey.OemPlus:
-			case ConsoleKey.OemMinus:
-				return (Key)((uint)keyInfo.KeyChar);
-			}
-
-			var key = keyInfo.Key;
-			if (key >= ConsoleKey.A && key <= ConsoleKey.Z){
-				var delta = key - ConsoleKey.A;
-				if (keyInfo.Modifiers == ConsoleModifiers.Control)
-					return (Key)((uint)Key.ControlA + delta);
-				if (keyInfo.Modifiers == ConsoleModifiers.Alt)
-					return (Key) (((uint)Key.AltMask) | ((uint)'A' + delta));
-				if (keyInfo.Modifiers == ConsoleModifiers.Shift)
-					return (Key)((uint)'A' + delta);
-				else
-					return (Key)((uint)'a' + delta);
-			}
-			if (key >= ConsoleKey.D0 && key <= ConsoleKey.D9) {
-				var delta = key - ConsoleKey.D0;
-				if (keyInfo.Modifiers == ConsoleModifiers.Alt)
-					return (Key)(((uint)Key.AltMask) | ((uint)'0' + delta));
-				if (keyInfo.Modifiers == ConsoleModifiers.Shift)
-					return (Key)((uint)keyInfo.KeyChar);
-				return (Key)((uint)'0' + delta);
-			}
-			if (key >= ConsoleKey.F1 && key <= ConsoleKey.F10) {
-				var delta = key - ConsoleKey.F1;
-
-				return (Key)((int) Key.F1 + delta);
-			}
-			return (Key)(0xffffffff);
-		}
-
-		public override void PrepareToRun (MainLoop mainLoop, Action<KeyEvent> keyHandler, Action<MouseEvent> mouseHandler)
-		{
-			mainLoop.WindowsKeyPressed = delegate (ConsoleKeyInfo consoleKey) {
-				var map = MapKey (consoleKey);
-				if (map == (Key) 0xffffffff)
-					return;
-				keyHandler (new KeyEvent (map));
-			};
-		}
-
-		public override void SetColors (ConsoleColor foreground, ConsoleColor background)
-		{
-			throw new NotImplementedException ();
-		}
-
-		public override void SetColors (short foregroundColorId, short backgroundColorId)
-		{
-			throw new NotImplementedException ();
-		}
-
-		public override void CookMouse ()
-		{
-		}
-
-		public override void UncookMouse ()
-		{
-		}
-
-		//
-		// These are for the .NET driver, but running natively on Windows, wont run 
-		// on the Mono emulation
-		//
-
-
-	}
-
-	internal class WindowsConsole {
-		public const int STD_OUTPUT_HANDLE = -11;
-		public const int STD_INPUT_HANDLE = -10;
-		public const int STD_ERROR_HANDLE = -12;
-
-		[DllImport ("kernel32.dll", SetLastError = true)]
-		static extern IntPtr GetStdHandle (int nStdHandle);
-
-		IntPtr inputHandle, outputHandle;
-
-		public WindowsConsole ()
-		{
-			inputHandle = GetStdHandle (STD_INPUT_HANDLE);
-			outputHandle = GetStdHandle (STD_OUTPUT_HANDLE);
-		}
-
-		[StructLayout (LayoutKind.Explicit, CharSet = CharSet.Unicode)]
-		public struct KeyEventRecord {
-			[FieldOffset (0), MarshalAs (UnmanagedType.Bool)]
-			public bool bKeyDown;
-			[FieldOffset (4), MarshalAs (UnmanagedType.U2)]
-			public ushort wRepeatCount;
-			[FieldOffset (6), MarshalAs (UnmanagedType.U2)]
-			public ushort wVirtualKeyCode;
-			[FieldOffset (8), MarshalAs (UnmanagedType.U2)]
-			public ushort wVirtualScanCode;
-			[FieldOffset (10)]
-			public char UnicodeChar;
-			[FieldOffset (12), MarshalAs (UnmanagedType.U4)]
-			public ControlKeyState dwControlKeyState;
-		}
-
-		[Flags]
-		public enum ButtonState {
-			Button1Pressed = 1,
-			Button2Pressed = 4,
-			Button3Pressed = 8,
-			Button4Pressed = 16,
-			RightmostButtonPressed = 2,
-				
-		}
-
-		[Flags]
-		public enum ControlKeyState {
-			RightAltPressed = 1,
-			LeftAltPressed = 2,
-			RightControlPressed = 4,
-			LeftControlPressed = 8,
-			ShiftPressed = 16,
-			NumlockOn = 32,
-			ScrolllockOn = 64,
-			CapslockOn = 128,
-			EnhancedKey = 256
-		}
-
-		[Flags]
-		public enum EventFlags {
-			MouseMoved = 1,
-			DoubleClick = 2, 
-			MouseWheeled = 4,
-			MouseHorizontalWheeled = 8
-		}
-
-		[StructLayout (LayoutKind.Explicit)]
-		public struct MouseEventRecord {
-			[FieldOffset (0)]
-			public Coordinate MousePosition;
-			[FieldOffset (4)]
-			public ButtonState ButtonState;
-			[FieldOffset (8)]
-			public ControlKeyState ControlKeyState;
-			[FieldOffset (12)]
-			public EventFlags EventFlags;
-
-			public override string ToString ()
-			{
-				return $"[Mouse({MousePosition},{ButtonState},{ControlKeyState},{EventFlags}";
-			}
-		}
-
-		[StructLayout (LayoutKind.Sequential)]
-		public struct Coordinate {
-			public short X;
-			public short Y;
-
-			public Coordinate (short X, short Y)
-			{
-				this.X = X;
-				this.Y = Y;
-			}
-
-			public override string ToString () => $"({X},{Y})";
-		};
-
-		internal struct WindowBufferSizeRecord {
-			public Coordinate size;
-
-			public WindowBufferSizeRecord (short x, short y)
-			{
-				this.size = new Coordinate (x, y);
-			}
-
-			public override string ToString () => $"[WindowBufferSize{size}";
-		}
-
-		[StructLayout (LayoutKind.Sequential)]
-		public struct MenuEventRecord {
-			public uint dwCommandId;
-		}
-
-		[StructLayout (LayoutKind.Sequential)]
-		public struct FocusEventRecord {
-			public uint bSetFocus;
-		}
-
-		public enum EventType {
-			Focus = 0x10,
-			Key = 0x1,
-			Menu = 0x8,
-			Mouse = 2,
-			WindowBufferSize = 4
-		}
-
-		[StructLayout (LayoutKind.Explicit)]
-		public struct InputRecord {
-			[FieldOffset (0)]
-			public EventType EventType;
-			[FieldOffset (4)]
-			public KeyEventRecord KeyEvent;
-			[FieldOffset (4)]
-			public MouseEventRecord MouseEvent;
-			[FieldOffset (4)]
-			public WindowBufferSizeRecord WindowBufferSizeEvent;
-			[FieldOffset (4)]
-			public MenuEventRecord MenuEvent;
-			[FieldOffset (4)]
-			public FocusEventRecord FocusEvent;
-
-			public override string ToString ()
-			{
-				switch (EventType) {
-				case EventType.Focus:
-					return FocusEvent.ToString ();
-				case EventType.Key:
-					return KeyEvent.ToString ();
-				case EventType.Menu:
-					return MenuEvent.ToString ();
-				case EventType.Mouse:
-					return MouseEvent.ToString ();
-				case EventType.WindowBufferSize:
-					return WindowBufferSizeEvent.ToString ();
-				default:
-					return "Unknown event type: " + EventType;
-				}
-			}
-		};
-
-		[DllImport ("kernel32.dll", EntryPoint = "ReadConsoleInputW", CharSet = CharSet.Unicode)]
-		public static extern bool ReadConsoleInput (
-			IntPtr hConsoleInput,
-			[Out] InputRecord [] lpBuffer,
-			uint nLength,
-			out uint lpNumberOfEventsRead);
-
-		[DllImport ("kernel32.dll")]
-		static extern bool GetConsoleMode (IntPtr hConsoleHandle, out uint lpMode);
-
-		[DllImport ("kernel32.dll")]
-		static extern bool SetConsoleMode (IntPtr hConsoleHandle, uint dwMode);
-
-		public uint ConsoleMode {
-			get {
-				uint v;
-				GetConsoleMode (inputHandle, out v);
-				return v;
-			}
-
-			set {
-				SetConsoleMode (inputHandle, value);
-			}
-		}
-	}
-}

Terminal.Gui/Drivers/ConsoleDriver.cs

@@ -0,0 +1,452 @@
+//
+// Driver.cs: Definition for the Console Driver API
+//
+// Authors:
+//   Miguel de Icaza ([email protected])
+//
+using System;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+using Mono.Terminal;
+using NStack;
+using Unix.Terminal;
+
+namespace Terminal.Gui {
+
+	/// <summary>
+	/// Basic colors that can be used to set the foreground and background colors in console applications.  These can only be
+	/// </summary>
+	public enum Color {
+		/// <summary>
+		/// The black color.
+		/// </summary>
+		Black,
+		/// <summary>
+		/// The blue color.
+		/// </summary>
+		Blue,
+		/// <summary>
+		/// The green color.
+		/// </summary>
+		Green,
+		/// <summary>
+		/// The cyan color.
+		/// </summary>
+		Cyan,
+		/// <summary>
+		/// The red color.
+		/// </summary>
+		Red,
+		/// <summary>
+		/// The magenta color.
+		/// </summary>
+		Magenta,
+		/// <summary>
+		/// The brown color.
+		/// </summary>
+		Brown,
+		/// <summary>
+		/// The gray color.
+		/// </summary>
+		Gray,
+		/// <summary>
+		/// The dark gray color.
+		/// </summary>
+		DarkGray,
+		/// <summary>
+		/// The bright bBlue color.
+		/// </summary>
+		BrightBlue,
+		/// <summary>
+		/// The bright green color.
+		/// </summary>
+		BrightGreen,
+		/// <summary>
+		/// The brigh cyan color.
+		/// </summary>
+		BrighCyan,
+		/// <summary>
+		/// The bright red color.
+		/// </summary>
+		BrightRed,
+		/// <summary>
+		/// The bright magenta color.
+		/// </summary>
+		BrightMagenta,
+		/// <summary>
+		/// The bright yellow color.
+		/// </summary>
+		BrightYellow,
+		/// <summary>
+		/// The White color.
+		/// </summary>
+		White
+	}
+
+	/// <summary>
+	/// Attributes are used as elements that contain both a foreground and a background or platform specific features
+	/// </summary>
+	/// <remarks>
+	///   Attributes are needed to map colors to terminal capabilities that might lack colors, on color
+	///   scenarios, they encode both the foreground and the background color and are used in the ColorScheme
+	///   class to define color schemes that can be used in your application.
+	/// </remarks>
+	public struct Attribute {
+		internal int value;
+
+		/// <summary>
+		/// Initializes a new instance of the <see cref="T:Terminal.Gui.Attribute"/> struct.
+		/// </summary>
+		/// <param name="value">Value.</param>
+		public Attribute (int value)
+		{
+			this.value = value;
+		}
+
+		public static implicit operator int (Attribute c) => c.value;
+		public static implicit operator Attribute (int v) => new Attribute (v);
+	}
+
+	/// <summary>
+	/// Color scheme definitions, they cover some common scenarios and are used
+	/// typically in toplevel containers to set the scheme that is used by all the
+	/// views contained inside.
+	/// </summary>
+	public class ColorScheme {
+		/// <summary>
+		/// The default color for text, when the view is not focused.
+		/// </summary>
+		public Attribute Normal;
+		/// <summary>
+		/// The color for text when the view has the focus.
+		/// </summary>
+		public Attribute Focus;
+
+		/// <summary>
+		/// The color for the hotkey when a view is not focused
+		/// </summary>
+		public Attribute HotNormal;
+
+		/// <summary>
+		/// The color for the hotkey when the view is focused.
+		/// </summary>
+		public Attribute HotFocus;
+	}
+
+	/// <summary>
+	/// The default ColorSchemes for the application.
+	/// </summary>
+	public static class Colors {
+		/// <summary>
+		/// The base color scheme, for the default toplevel views.
+		/// </summary>
+		public static ColorScheme Base;
+		/// <summary>
+		/// The dialog color scheme, for standard popup dialog boxes
+		/// </summary>
+		public static ColorScheme Dialog;
+
+		/// <summary>
+		/// The menu bar color
+		/// </summary>
+		public static ColorScheme Menu;
+
+		/// <summary>
+		/// The color scheme for showing errors.
+		/// </summary>
+		public static ColorScheme Error;
+
+	}
+
+	/// <summary>
+	/// Special characters that can be drawn with Driver.AddSpecial.
+	/// </summary>
+	public enum SpecialChar {
+		/// <summary>
+		/// Horizontal line character.
+		/// </summary>
+		HLine,
+
+		/// <summary>
+		/// Vertical line character.
+		/// </summary>
+		VLine,
+
+		/// <summary>
+		/// Stipple pattern
+		/// </summary>
+		Stipple,
+
+		/// <summary>
+		/// Diamond character
+		/// </summary>
+		Diamond,
+
+		/// <summary>
+		/// Upper left corner
+		/// </summary>
+		ULCorner,
+
+		/// <summary>
+		/// Lower left corner
+		/// </summary>
+		LLCorner,
+
+		/// <summary>
+		/// Upper right corner
+		/// </summary>
+		URCorner,
+
+		/// <summary>
+		/// Lower right corner
+		/// </summary>
+		LRCorner,
+
+		/// <summary>
+		/// Left tee
+		/// </summary>
+		LeftTee,
+
+		/// <summary>
+		/// Right tee
+		/// </summary>
+		RightTee,
+
+		/// <summary>
+		/// Top tee 
+		/// </summary>
+		TopTee,
+
+		/// <summary>
+		/// The bottom tee.
+		/// </summary>
+		BottomTee,
+
+	}
+
+	/// <summary>
+	/// ConsoleDriver is an abstract class that defines the requirements for a console driver.   One implementation if the CursesDriver, and another one uses the .NET Console one.
+	/// </summary>
+	public abstract class ConsoleDriver {
+		/// <summary>
+		/// The current number of columns in the terminal.
+		/// </summary>
+		public abstract int Cols { get; }
+		/// <summary>
+		/// The current number of rows in the terminal.
+		/// </summary>
+		public abstract int Rows { get; }
+		/// <summary>
+		/// Initializes the driver
+		/// </summary>
+		/// <param name="terminalResized">Method to invoke when the terminal is resized.</param>
+		public abstract void Init (Action terminalResized);
+		/// <summary>
+		/// Moves the cursor to the specified column and row.
+		/// </summary>
+		/// <param name="col">Column to move the cursor to.</param>
+		/// <param name="row">Row to move the cursor to.</param>
+		public abstract void Move (int col, int row);
+		/// <summary>
+		/// Adds the specified rune to the display at the current cursor position
+		/// </summary>
+		/// <param name="rune">Rune to add.</param>
+		public abstract void AddRune (Rune rune);
+		/// <summary>
+		/// Adds the specified 
+		/// </summary>
+		/// <param name="str">String.</param>
+		public abstract void AddStr (ustring str);
+		public abstract void PrepareToRun (MainLoop mainLoop, Action<KeyEvent> keyHandler, Action<MouseEvent> mouseHandler);
+
+		/// <summary>
+		/// Updates the screen to reflect all the changes that have been done to the display buffer
+		/// </summary>
+		public abstract void Refresh ();
+
+		/// <summary>
+		/// Updates the location of the cursor position
+		/// </summary>
+		public abstract void UpdateCursor ();
+
+		/// <summary>
+		/// Ends the execution of the console driver.
+		/// </summary>
+		public abstract void End ();
+
+		/// <summary>
+		/// Redraws the physical screen with the contents that have been queued up via any of the printing commands.
+		/// </summary>
+		public abstract void UpdateScreen ();
+
+		/// <summary>
+		/// Selects the specified attribute as the attribute to use for future calls to AddRune, AddString.
+		/// </summary>
+		/// <param name="c">C.</param>
+		public abstract void SetAttribute (Attribute c);
+
+		// Set Colors from limit sets of colors
+		public abstract void SetColors (ConsoleColor foreground, ConsoleColor background);
+
+		// Advanced uses - set colors to any pre-set pairs, you would need to init_color
+		// that independently with the R, G, B values.
+		/// <summary>
+		/// Advanced uses - set colors to any pre-set pairs, you would need to init_color 
+		/// that independently with the R, G, B values.
+		/// </summary>
+		/// <param name="foregroundColorId">Foreground color identifier.</param>
+		/// <param name="backgroundColorId">Background color identifier.</param>
+		public abstract void SetColors (short foregroundColorId, short backgroundColorId);
+
+		/// <summary>
+		/// Draws a frame on the specified region with the specified padding around the frame.
+		/// </summary>
+		/// <param name="region">Region where the frame will be drawn..</param>
+		/// <param name="padding">Padding to add on the sides.</param>
+		/// <param name="fill">If set to <c>true</c> it will clear the contents with the current color, otherwise the contents will be left untouched.</param>
+		public virtual void DrawFrame (Rect region, int padding, bool fill)
+		{
+			int width = region.Width;
+			int height = region.Height;
+			int b;
+			int fwidth = width - padding * 2;
+			int fheight = height - 1 - padding;
+
+			Move (region.X, region.Y);
+			if (padding > 0) {
+				for (int l = 0; l < padding; l++)
+					for (b = 0; b < width; b++)
+						AddRune (' ');
+			}
+			Move (region.X, region.Y + padding);
+			for (int c = 0; c < padding; c++)
+				AddRune (' ');
+			AddRune (ULCorner);
+			for (b = 0; b < fwidth - 2; b++)
+				AddRune (HLine);
+			AddRune (URCorner);
+			for (int c = 0; c < padding; c++)
+				AddRune (' ');
+
+			for (b = 1 + padding; b < fheight; b++) {
+				Move (region.X, region.Y + b);
+				for (int c = 0; c < padding; c++)
+					AddRune (' ');
+				AddRune (VLine);
+				if (fill) {
+					for (int x = 1; x < fwidth - 1; x++)
+						AddRune (' ');
+				} else
+					Move (region.X + fwidth - 1, region.Y + b);
+				AddRune (VLine);
+				for (int c = 0; c < padding; c++)
+					AddRune (' ');
+			}
+			Move (region.X, region.Y + fheight);
+			for (int c = 0; c < padding; c++)
+				AddRune (' ');
+			AddRune (LLCorner);
+			for (b = 0; b < fwidth - 2; b++)
+				AddRune (HLine);
+			AddRune (LRCorner);
+			for (int c = 0; c < padding; c++)
+				AddRune (' ');
+			if (padding > 0) {
+				Move (region.X, region.Y + height - padding);
+				for (int l = 0; l < padding; l++)
+					for (b = 0; b < width; b++)
+						AddRune (' ');
+			}			
+		}
+
+
+		/// <summary>
+		/// Suspend the application, typically needs to save the state, suspend the app and upon return, reset the console driver.
+		/// </summary>
+		public abstract void Suspend ();
+
+		Rect clip;
+
+		/// <summary>
+		/// Controls the current clipping region that AddRune/AddStr is subject to.
+		/// </summary>
+		/// <value>The clip.</value>
+		public Rect Clip {
+			get => clip;
+			set => this.clip = value;
+		}
+
+		public abstract void StartReportingMouseMoves ();
+		public abstract void StopReportingMouseMoves ();
+
+		/// <summary>
+		/// Disables the cooked event processing from the mouse driver.  At startup, it is assumed mouse events are cooked.
+		/// </summary>
+		public abstract void UncookMouse ();
+
+		/// <summary>
+		/// Enables the cooked event processing from the mouse driver
+		/// </summary>
+		public abstract void CookMouse ();
+
+		/// <summary>
+		/// Horizontal line character.
+		/// </summary>
+		public Rune HLine;
+
+		/// <summary>
+		/// Vertical line character.
+		/// </summary>
+		public Rune VLine;
+
+		/// <summary>
+		/// Stipple pattern
+		/// </summary>
+		public Rune Stipple;
+
+		/// <summary>
+		/// Diamond character
+		/// </summary>
+		public Rune Diamond;
+
+		/// <summary>
+		/// Upper left corner
+		/// </summary>
+		public Rune ULCorner;
+
+		/// <summary>
+		/// Lower left corner
+		/// </summary>
+		public Rune LLCorner;
+
+		/// <summary>
+		/// Upper right corner
+		/// </summary>
+		public Rune URCorner;
+
+		/// <summary>
+		/// Lower right corner
+		/// </summary>
+		public Rune LRCorner;
+
+		/// <summary>
+		/// Left tee
+		/// </summary>
+		public Rune LeftTee;
+
+		/// <summary>
+		/// Right tee
+		/// </summary>
+		public Rune RightTee;
+
+		/// <summary>
+		/// Top tee 
+		/// </summary>
+		public Rune TopTee;
+
+		/// <summary>
+		/// The bottom tee.
+		/// </summary>
+		public Rune BottomTee;
+	}
+}

Terminal.Gui/Drivers/CursesDriver.cs

@@ -0,0 +1,391 @@
+//
+// Driver.cs: Curses-based Driver
+//
+// Authors:
+//   Miguel de Icaza ([email protected])
+//
+using System;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+using Mono.Terminal;
+using NStack;
+using Unix.Terminal;
+
+namespace Terminal.Gui {
+
+	/// <summary>
+	/// This is the Curses driver for the gui.cs/Terminal framework.
+	/// </summary>
+	internal class CursesDriver : ConsoleDriver {
+		Action terminalResized;
+
+		public override int Cols => Curses.Cols;
+		public override int Rows => Curses.Lines;
+
+		// Current row, and current col, tracked by Move/AddRune only
+		int ccol, crow;
+		bool needMove;
+		public override void Move (int col, int row)
+		{
+			ccol = col;
+			crow = row;
+
+			if (Clip.Contains (col, row)) {
+				Curses.move (row, col);
+				needMove = false;
+			} else {
+				Curses.move (Clip.Y, Clip.X);
+				needMove = true;
+			}
+		}
+
+		static bool sync;
+		public override void AddRune (Rune rune)
+		{
+			if (Clip.Contains (ccol, crow)) {
+				if (needMove) {
+					Curses.move (crow, ccol);
+					needMove = false;
+				}
+				Curses.addch ((int)(uint)rune);
+			} else
+				needMove = true;
+			if (sync)
+				Application.Driver.Refresh ();
+			ccol++;
+		}
+
+		public override void AddStr (ustring str)
+		{
+			// TODO; optimize this to determine if the str fits in the clip region, and if so, use Curses.addstr directly
+			foreach (var rune in str)
+				AddRune (rune);
+		}
+
+		public override void Refresh () => Curses.refresh ();
+		public override void UpdateCursor () => Curses.refresh ();
+		public override void End () => Curses.endwin ();
+		public override void UpdateScreen () => window.redrawwin ();
+		public override void SetAttribute (Attribute c) => Curses.attrset (c.value);
+		public Curses.Window window;
+
+		static short last_color_pair = 16;
+		static Attribute MakeColor (short f, short b)
+		{
+			Curses.InitColorPair (++last_color_pair, f, b);
+			return new Attribute () { value = Curses.ColorPair (last_color_pair) };
+		}
+
+		int [,] colorPairs = new int [16, 16];
+
+		public override void SetColors (ConsoleColor foreground, ConsoleColor background)
+		{
+			int f = (short)foreground;
+			int b = (short)background;
+			var v = colorPairs [f, b];
+			if ((v & 0x10000) == 0) {
+				b = b & 0x7;
+				bool bold = (f & 0x8) != 0;
+				f = f & 0x7;
+
+				v = MakeColor ((short)f, (short)b) | (bold ? Curses.A_BOLD : 0);
+				colorPairs [(int)foreground, (int)background] = v | 0x1000;
+			}
+			SetAttribute (v & 0xffff);
+		}
+
+		Dictionary<int, int> rawPairs = new Dictionary<int, int> ();
+		public override void SetColors (short foreColorId, short backgroundColorId)
+		{
+			int key = (((ushort)foreColorId << 16)) | (ushort)backgroundColorId;
+			if (!rawPairs.TryGetValue (key, out var v)) {
+				v = MakeColor (foreColorId, backgroundColorId);
+				rawPairs [key] = v;
+			}
+			SetAttribute (v);
+		}
+
+		static Key MapCursesKey (int cursesKey)
+		{
+			switch (cursesKey) {
+			case Curses.KeyF1: return Key.F1;
+			case Curses.KeyF2: return Key.F2;
+			case Curses.KeyF3: return Key.F3;
+			case Curses.KeyF4: return Key.F4;
+			case Curses.KeyF5: return Key.F5;
+			case Curses.KeyF6: return Key.F6;
+			case Curses.KeyF7: return Key.F7;
+			case Curses.KeyF8: return Key.F8;
+			case Curses.KeyF9: return Key.F9;
+			case Curses.KeyF10: return Key.F10;
+			case Curses.KeyUp: return Key.CursorUp;
+			case Curses.KeyDown: return Key.CursorDown;
+			case Curses.KeyLeft: return Key.CursorLeft;
+			case Curses.KeyRight: return Key.CursorRight;
+			case Curses.KeyHome: return Key.Home;
+			case Curses.KeyEnd: return Key.End;
+			case Curses.KeyNPage: return Key.PageDown;
+			case Curses.KeyPPage: return Key.PageUp;
+			case Curses.KeyDeleteChar: return Key.DeleteChar;
+			case Curses.KeyInsertChar: return Key.InsertChar;
+			case Curses.KeyBackTab: return Key.BackTab;
+			case Curses.KeyBackspace: return Key.Backspace;
+			default: return Key.Unknown;
+			}
+		}
+
+		static MouseEvent ToDriverMouse (Curses.MouseEvent cev)
+		{
+			return new MouseEvent () {
+				X = cev.X,
+				Y = cev.Y,
+				Flags = (MouseFlags)cev.ButtonState
+			};
+		}
+
+		void ProcessInput (Action<KeyEvent> keyHandler, Action<MouseEvent> mouseHandler)
+		{
+			int wch;
+			var code = Curses.get_wch (out wch);
+			if (code == Curses.ERR)
+				return;
+			if (code == Curses.KEY_CODE_YES) {
+				if (wch == Curses.KeyResize) {
+					if (Curses.CheckWinChange ()) {
+						terminalResized ();
+						return;
+					}
+				}
+				if (wch == Curses.KeyMouse) {
+					Curses.MouseEvent ev;
+					Curses.getmouse (out ev);
+					mouseHandler (ToDriverMouse (ev));
+					return;
+				}
+				keyHandler (new KeyEvent (MapCursesKey (wch)));
+				return;
+			}
+
+			// Special handling for ESC, we want to try to catch ESC+letter to simulate alt-letter as well as Alt-Fkey
+			if (wch == 27) {
+				Curses.timeout (200);
+
+				code = Curses.get_wch (out wch);
+				if (code == Curses.KEY_CODE_YES)
+					keyHandler (new KeyEvent (Key.AltMask | MapCursesKey (wch)));
+				if (code == 0) {
+					KeyEvent key;
+
+					// The ESC-number handling, debatable.
+					if (wch >= '1' && wch <= '9')
+						key = new KeyEvent ((Key)((int)Key.F1 + (wch - '0' - 1)));
+					else if (wch == '0')
+						key = new KeyEvent (Key.F10);
+					else if (wch == 27)
+						key = new KeyEvent ((Key)wch);
+					else
+						key = new KeyEvent (Key.AltMask | (Key)wch);
+					keyHandler (key);
+				} else
+					keyHandler (new KeyEvent (Key.Esc));
+			} else
+				keyHandler (new KeyEvent ((Key)wch));
+		}
+
+		public override void PrepareToRun (MainLoop mainLoop, Action<KeyEvent> keyHandler, Action<MouseEvent> mouseHandler)
+		{
+			Curses.timeout (-1);
+
+			mainLoop.AddWatch (0, Mono.Terminal.MainLoop.Condition.PollIn, x => {
+				ProcessInput (keyHandler, mouseHandler);
+				return true;
+			});
+
+		}
+
+		Curses.Event oldMouseEvents, reportableMouseEvents;
+		public override void Init (Action terminalResized)
+		{
+			if (window != null)
+				return;
+
+			try {
+				window = Curses.initscr ();
+			} catch (Exception e) {
+				Console.WriteLine ("Curses failed to initialize, the exception is: " + e);
+			}
+			Curses.raw ();
+			Curses.noecho ();
+
+			Curses.Window.Standard.keypad (true);
+			reportableMouseEvents = Curses.mousemask (Curses.Event.AllEvents | Curses.Event.ReportMousePosition, out oldMouseEvents);
+			this.terminalResized = terminalResized;
+			StartReportingMouseMoves ();
+
+			HLine = Curses.ACS_HLINE;
+			VLine = Curses.ACS_VLINE;
+			Stipple = Curses.ACS_CKBOARD;
+			Diamond = Curses.ACS_DIAMOND;
+			ULCorner = Curses.ACS_ULCORNER;
+			LLCorner = Curses.ACS_LLCORNER;
+			URCorner = Curses.ACS_URCORNER;
+			LRCorner = Curses.ACS_LRCORNER;
+			LeftTee = Curses.ACS_LTEE;
+			RightTee = Curses.ACS_RTEE;
+			TopTee = Curses.ACS_TTEE;
+			BottomTee = Curses.ACS_BTEE;
+
+			Colors.Base = new ColorScheme ();
+			Colors.Dialog = new ColorScheme ();
+			Colors.Menu = new ColorScheme ();
+			Colors.Error = new ColorScheme ();
+			Clip = new Rect (0, 0, Cols, Rows);
+			if (Curses.HasColors) {
+				Curses.StartColor ();
+				Curses.UseDefaultColors ();
+
+				Colors.Base.Normal = MakeColor (Curses.COLOR_WHITE, Curses.COLOR_BLUE);
+				Colors.Base.Focus = MakeColor (Curses.COLOR_BLACK, Curses.COLOR_CYAN);
+				Colors.Base.HotNormal = Curses.A_BOLD | MakeColor (Curses.COLOR_YELLOW, Curses.COLOR_BLUE);
+				Colors.Base.HotFocus = Curses.A_BOLD | MakeColor (Curses.COLOR_YELLOW, Curses.COLOR_CYAN);
+
+				// Focused, 
+				//    Selected, Hot: Yellow on Black
+				//    Selected, text: white on black
+				//    Unselected, hot: yellow on cyan
+				//    unselected, text: same as unfocused
+				Colors.Menu.HotFocus = Curses.A_BOLD | MakeColor (Curses.COLOR_YELLOW, Curses.COLOR_BLACK);
+				Colors.Menu.Focus = Curses.A_BOLD | MakeColor (Curses.COLOR_WHITE, Curses.COLOR_BLACK);
+				Colors.Menu.HotNormal = Curses.A_BOLD | MakeColor (Curses.COLOR_YELLOW, Curses.COLOR_CYAN);
+				Colors.Menu.Normal = Curses.A_BOLD | MakeColor (Curses.COLOR_WHITE, Curses.COLOR_CYAN);
+
+				Colors.Dialog.Normal = MakeColor (Curses.COLOR_BLACK, Curses.COLOR_WHITE);
+				Colors.Dialog.Focus = MakeColor (Curses.COLOR_BLACK, Curses.COLOR_CYAN);
+				Colors.Dialog.HotNormal = MakeColor (Curses.COLOR_BLUE, Curses.COLOR_WHITE);
+				Colors.Dialog.HotFocus = MakeColor (Curses.COLOR_BLUE, Curses.COLOR_CYAN);
+
+				Colors.Error.Normal = Curses.A_BOLD | MakeColor (Curses.COLOR_WHITE, Curses.COLOR_RED);
+				Colors.Error.Focus = MakeColor (Curses.COLOR_BLACK, Curses.COLOR_WHITE);
+				Colors.Error.HotNormal = Curses.A_BOLD | MakeColor (Curses.COLOR_YELLOW, Curses.COLOR_RED);
+				Colors.Error.HotFocus = Colors.Error.HotNormal;
+			} else {
+				Colors.Base.Normal = Curses.A_NORMAL;
+				Colors.Base.Focus = Curses.A_REVERSE;
+				Colors.Base.HotNormal = Curses.A_BOLD;
+				Colors.Base.HotFocus = Curses.A_BOLD | Curses.A_REVERSE;
+				Colors.Menu.Normal = Curses.A_REVERSE;
+				Colors.Menu.Focus = Curses.A_NORMAL;
+				Colors.Menu.HotNormal = Curses.A_BOLD;
+				Colors.Menu.HotFocus = Curses.A_NORMAL;
+				Colors.Dialog.Normal = Curses.A_REVERSE;
+				Colors.Dialog.Focus = Curses.A_NORMAL;
+				Colors.Dialog.HotNormal = Curses.A_BOLD;
+				Colors.Dialog.HotFocus = Curses.A_NORMAL;
+				Colors.Error.Normal = Curses.A_BOLD;
+				Colors.Error.Focus = Curses.A_BOLD | Curses.A_REVERSE;
+				Colors.Error.HotNormal = Curses.A_BOLD | Curses.A_REVERSE;
+				Colors.Error.HotFocus = Curses.A_REVERSE;
+			}
+		}
+
+		public override void Suspend ()
+		{
+			StopReportingMouseMoves ();
+			Platform.Suspend ();
+			Curses.Window.Standard.redrawwin ();
+			Curses.refresh ();
+			StartReportingMouseMoves ();
+		}
+
+		public override void StartReportingMouseMoves ()
+		{
+			Console.Out.Write ("\x1b[?1003h");
+			Console.Out.Flush ();
+		}
+
+		public override void StopReportingMouseMoves ()
+		{
+			Console.Out.Write ("\x1b[?1003l");
+			Console.Out.Flush ();
+		}
+
+		int lastMouseInterval;
+		bool mouseGrabbed;
+
+		public override void UncookMouse ()
+		{
+			if (mouseGrabbed)
+				return;
+			lastMouseInterval = Curses.mouseinterval (0);
+			mouseGrabbed = true;
+		}
+
+		public override void CookMouse ()
+		{
+			mouseGrabbed = false;
+			Curses.mouseinterval (lastMouseInterval);
+		}
+	}
+
+	internal static class Platform {
+		[DllImport ("libc")]
+		static extern int uname (IntPtr buf);
+
+		[DllImport ("libc")]
+		static extern int killpg (int pgrp, int pid);
+
+		static int suspendSignal;
+
+		static int GetSuspendSignal ()
+		{
+			if (suspendSignal != 0)
+				return suspendSignal;
+
+			IntPtr buf = Marshal.AllocHGlobal (8192);
+			if (uname (buf) != 0) {
+				Marshal.FreeHGlobal (buf);
+				suspendSignal = -1;
+				return suspendSignal;
+			}
+			try {
+				switch (Marshal.PtrToStringAnsi (buf)) {
+				case "Darwin":
+				case "DragonFly":
+				case "FreeBSD":
+				case "NetBSD":
+				case "OpenBSD":
+					suspendSignal = 18;
+					break;
+				case "Linux":
+					// TODO: should fetch the machine name and 
+					// if it is MIPS return 24
+					suspendSignal = 20;
+					break;
+				case "Solaris":
+					suspendSignal = 24;
+					break;
+				default:
+					suspendSignal = -1;
+					break;
+				}
+				return suspendSignal;
+			} finally {
+				Marshal.FreeHGlobal (buf);
+			}
+		}
+
+		/// <summary>
+		/// Suspends the process by sending SIGTSTP to itself
+		/// </summary>
+		/// <returns>The suspend.</returns>
+		static public bool Suspend ()
+		{
+			int signal = GetSuspendSignal ();
+			if (signal == -1)
+				return false;
+			killpg (0, signal);
+			return true;
+		}
+	}
+
+}

Terminal.Gui/Drivers/NetDriver.cs

@@ -0,0 +1,351 @@
+//
+// NetDriver.cs: The System.Console-based .NET driver, works on Windows and Unix, but is not particularly efficient.
+//
+// Authors:
+//   Miguel de Icaza ([email protected])
+//
+using System;
+using Mono.Terminal;
+using NStack;
+
+namespace Terminal.Gui {
+
+	internal class NetDriver : ConsoleDriver {
+		int cols, rows;
+		public override int Cols => cols;
+		public override int Rows => rows;
+
+		// The format is rows, columns and 3 values on the last column: Rune, Attribute and Dirty Flag
+		int [,,] contents;
+		bool [] dirtyLine;
+
+		void UpdateOffscreen ()
+		{
+			int cols = Cols;
+			int rows = Rows;
+
+			contents = new int [rows, cols, 3];
+			for (int r = 0; r < rows; r++) {
+				for (int c = 0; c < cols; c++) {
+					contents [r, c, 0] = ' ';
+					contents [r, c, 1] = MakeColor (ConsoleColor.Gray, ConsoleColor.Black);
+					contents [r, c, 2] = 0;
+				}
+			}
+			dirtyLine = new bool [rows];
+			for (int row = 0; row < rows; row++)
+				dirtyLine [row] = true;
+		}
+
+		static bool sync;
+
+		public NetDriver ()
+		{
+			cols = Console.WindowWidth;
+			rows = Console.WindowHeight - 1;
+			UpdateOffscreen ();
+		}
+
+		bool needMove;
+		// Current row, and current col, tracked by Move/AddCh only
+		int ccol, crow;
+		public override void Move (int col, int row)
+		{
+			ccol = col;
+			crow = row;
+
+			if (Clip.Contains (col, row)) {
+				Console.CursorTop = row;
+				Console.CursorLeft = col;
+				needMove = false;
+			} else {
+				Console.CursorTop = Clip.Y;
+				Console.CursorLeft = Clip.X;
+				needMove = true;
+			}
+
+		}
+
+		public override void AddRune (Rune rune)
+		{
+			if (Clip.Contains (ccol, crow)) {
+				if (needMove) {
+					//Console.CursorLeft = ccol;
+					//Console.CursorTop = crow;
+					needMove = false;
+				}
+				contents [crow, ccol, 0] = (int)(uint)rune;
+				contents [crow, ccol, 1] = currentAttribute;
+				contents [crow, ccol, 2] = 1;
+				dirtyLine [crow] = true;
+			} else
+				needMove = true;
+			ccol++;
+			if (ccol == Cols) {
+				ccol = 0;
+				if (crow + 1 < Rows)
+					crow++;
+			}
+			if (sync)
+				UpdateScreen ();
+		}
+
+		public override void AddStr (ustring str)
+		{
+			foreach (var rune in str)
+				AddRune (rune);
+		}
+
+		public override void End ()
+		{
+			Console.ResetColor ();
+			Console.Clear ();
+		}
+
+		static Attribute MakeColor (ConsoleColor f, ConsoleColor b)
+		{
+			// Encode the colors into the int value.
+			return new Attribute () { value = ((((int)f) & 0xffff) << 16) | (((int)b) & 0xffff) };
+		}
+
+
+		public override void Init (Action terminalResized)
+		{
+			Colors.Base = new ColorScheme ();
+			Colors.Dialog = new ColorScheme ();
+			Colors.Menu = new ColorScheme ();
+			Colors.Error = new ColorScheme ();
+			Clip = new Rect (0, 0, Cols, Rows);
+
+			HLine = '\u2500';
+			VLine = '\u2502';
+			Stipple = '\u2592';
+			Diamond = '\u25c6';
+			ULCorner = '\u250C';
+			LLCorner = '\u2514';
+			URCorner = '\u2510';
+			LRCorner = '\u2518';
+			LeftTee = '\u251c';
+			RightTee = '\u2524';
+			TopTee = '\u22a4';
+			BottomTee = '\u22a5';
+
+			Colors.Base.Normal = MakeColor (ConsoleColor.White, ConsoleColor.Blue);
+			Colors.Base.Focus = MakeColor (ConsoleColor.Black, ConsoleColor.Cyan);
+			Colors.Base.HotNormal = MakeColor (ConsoleColor.Yellow, ConsoleColor.Blue);
+			Colors.Base.HotFocus = MakeColor (ConsoleColor.Yellow, ConsoleColor.Cyan);
+
+			// Focused, 
+			//    Selected, Hot: Yellow on Black
+			//    Selected, text: white on black
+			//    Unselected, hot: yellow on cyan
+			//    unselected, text: same as unfocused
+			Colors.Menu.HotFocus = MakeColor (ConsoleColor.Yellow, ConsoleColor.Black);
+			Colors.Menu.Focus = MakeColor (ConsoleColor.White, ConsoleColor.Black);
+			Colors.Menu.HotNormal = MakeColor (ConsoleColor.Yellow, ConsoleColor.Cyan);
+			Colors.Menu.Normal = MakeColor (ConsoleColor.White, ConsoleColor.Cyan);
+
+			Colors.Dialog.Normal = MakeColor (ConsoleColor.Black, ConsoleColor.Gray);
+			Colors.Dialog.Focus = MakeColor (ConsoleColor.Black, ConsoleColor.Cyan);
+			Colors.Dialog.HotNormal = MakeColor (ConsoleColor.Blue, ConsoleColor.Gray);
+			Colors.Dialog.HotFocus = MakeColor (ConsoleColor.Blue, ConsoleColor.Cyan);
+
+			Colors.Error.Normal = MakeColor (ConsoleColor.White, ConsoleColor.Red);
+			Colors.Error.Focus = MakeColor (ConsoleColor.Black, ConsoleColor.Gray);
+			Colors.Error.HotNormal = MakeColor (ConsoleColor.Yellow, ConsoleColor.Red);
+			Colors.Error.HotFocus = Colors.Error.HotNormal;
+			Console.Clear ();
+		}
+
+		int redrawColor = -1;
+		void SetColor (int color)
+		{
+			redrawColor = color;
+			Console.BackgroundColor = (ConsoleColor)(color & 0xffff);
+			Console.ForegroundColor = (ConsoleColor)((color >> 16) & 0xffff);
+		}
+
+		public override void UpdateScreen ()
+		{
+			int rows = Rows;
+			int cols = Cols;
+
+			Console.CursorTop = 0;
+			Console.CursorLeft = 0;
+			for (int row = 0; row < rows; row++) {
+				dirtyLine [row] = false;
+				for (int col = 0; col < cols; col++) {
+					contents [row, col, 2] = 0;
+					var color = contents [row, col, 1];
+					if (color != redrawColor)
+						SetColor (color);
+					Console.Write ((char)contents [row, col, 0]);
+				}
+			}
+		}
+
+		public override void Refresh ()
+		{
+			int rows = Rows;
+			int cols = Cols;
+
+			var savedRow = Console.CursorTop;
+			var savedCol = Console.CursorLeft;
+			for (int row = 0; row < rows; row++) {
+				if (!dirtyLine [row])
+					continue;
+				dirtyLine [row] = false;
+				for (int col = 0; col < cols; col++) {
+					if (contents [row, col, 2] != 1)
+						continue;
+
+					Console.CursorTop = row;
+					Console.CursorLeft = col;
+					for (; col < cols && contents [row, col, 2] == 1; col++) {
+						var color = contents [row, col, 1];
+						if (color != redrawColor)
+							SetColor (color);
+
+						Console.Write ((char)contents [row, col, 0]);
+						contents [row, col, 2] = 0;
+					}
+				}
+			}
+			Console.CursorTop = savedRow;
+			Console.CursorLeft = savedCol;
+		}
+
+		public override void UpdateCursor ()
+		{
+			//
+		}
+
+		public override void StartReportingMouseMoves ()
+		{
+		}
+
+		public override void StopReportingMouseMoves ()
+		{
+		}
+
+		public override void Suspend ()
+		{
+		}
+
+		int currentAttribute;
+		public override void SetAttribute (Attribute c)
+		{
+			currentAttribute = c.value;
+		}
+
+		Key MapKey (ConsoleKeyInfo keyInfo)
+		{
+			switch (keyInfo.Key) {
+			case ConsoleKey.Escape:
+				return Key.Esc;
+			case ConsoleKey.Tab:
+				return Key.Tab;
+			case ConsoleKey.Home:
+				return Key.Home;
+			case ConsoleKey.End:
+				return Key.End;
+			case ConsoleKey.LeftArrow:
+				return Key.CursorLeft;
+			case ConsoleKey.RightArrow:
+				return Key.CursorRight;
+			case ConsoleKey.UpArrow:
+				return Key.CursorUp;
+			case ConsoleKey.DownArrow:
+				return Key.CursorDown;
+			case ConsoleKey.PageUp:
+				return Key.PageUp;
+			case ConsoleKey.PageDown:
+				return Key.PageDown;
+			case ConsoleKey.Enter:
+				return Key.Enter;
+			case ConsoleKey.Spacebar:
+				return Key.Space;
+			case ConsoleKey.Backspace:
+				return Key.Backspace;
+			case ConsoleKey.Delete:
+				return Key.Delete;
+
+			case ConsoleKey.Oem1:
+			case ConsoleKey.Oem2:
+			case ConsoleKey.Oem3:
+			case ConsoleKey.Oem4:
+			case ConsoleKey.Oem5:
+			case ConsoleKey.Oem6:
+			case ConsoleKey.Oem7:
+			case ConsoleKey.Oem8:
+			case ConsoleKey.Oem102:
+			case ConsoleKey.OemPeriod:
+			case ConsoleKey.OemComma:
+			case ConsoleKey.OemPlus:
+			case ConsoleKey.OemMinus:
+				return (Key)((uint)keyInfo.KeyChar);
+			}
+
+			var key = keyInfo.Key;
+			if (key >= ConsoleKey.A && key <= ConsoleKey.Z) {
+				var delta = key - ConsoleKey.A;
+				if (keyInfo.Modifiers == ConsoleModifiers.Control)
+					return (Key)((uint)Key.ControlA + delta);
+				if (keyInfo.Modifiers == ConsoleModifiers.Alt)
+					return (Key)(((uint)Key.AltMask) | ((uint)'A' + delta));
+				if (keyInfo.Modifiers == ConsoleModifiers.Shift)
+					return (Key)((uint)'A' + delta);
+				else
+					return (Key)((uint)'a' + delta);
+			}
+			if (key >= ConsoleKey.D0 && key <= ConsoleKey.D9) {
+				var delta = key - ConsoleKey.D0;
+				if (keyInfo.Modifiers == ConsoleModifiers.Alt)
+					return (Key)(((uint)Key.AltMask) | ((uint)'0' + delta));
+				if (keyInfo.Modifiers == ConsoleModifiers.Shift)
+					return (Key)((uint)keyInfo.KeyChar);
+				return (Key)((uint)'0' + delta);
+			}
+			if (key >= ConsoleKey.F1 && key <= ConsoleKey.F10) {
+				var delta = key - ConsoleKey.F1;
+
+				return (Key)((int)Key.F1 + delta);
+			}
+			return (Key)(0xffffffff);
+		}
+
+		public override void PrepareToRun (MainLoop mainLoop, Action<KeyEvent> keyHandler, Action<MouseEvent> mouseHandler)
+		{
+			mainLoop.WindowsKeyPressed = delegate (ConsoleKeyInfo consoleKey) {
+				var map = MapKey (consoleKey);
+				if (map == (Key)0xffffffff)
+					return;
+				keyHandler (new KeyEvent (map));
+			};
+		}
+
+		public override void SetColors (ConsoleColor foreground, ConsoleColor background)
+		{
+			throw new NotImplementedException ();
+		}
+
+		public override void SetColors (short foregroundColorId, short backgroundColorId)
+		{
+			throw new NotImplementedException ();
+		}
+
+		public override void CookMouse ()
+		{
+		}
+
+		public override void UncookMouse ()
+		{
+		}
+
+		//
+		// These are for the .NET driver, but running natively on Windows, wont run 
+		// on the Mono emulation
+		//
+
+	}
+}

Terminal.Gui/Drivers/WindowsDriver.cs

@@ -0,0 +1,193 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace Terminal.Gui {
+
+	internal class WindowsConsole {
+		public const int STD_OUTPUT_HANDLE = -11;
+		public const int STD_INPUT_HANDLE = -10;
+		public const int STD_ERROR_HANDLE = -12;
+
+		[DllImport ("kernel32.dll", SetLastError = true)]
+		static extern IntPtr GetStdHandle (int nStdHandle);
+
+		IntPtr inputHandle, outputHandle;
+
+		public WindowsConsole ()
+		{
+			inputHandle = GetStdHandle (STD_INPUT_HANDLE);
+			outputHandle = GetStdHandle (STD_OUTPUT_HANDLE);
+		}
+
+		[StructLayout (LayoutKind.Explicit, CharSet = CharSet.Unicode)]
+		public struct KeyEventRecord {
+			[FieldOffset (0), MarshalAs (UnmanagedType.Bool)]
+			public bool bKeyDown;
+			[FieldOffset (4), MarshalAs (UnmanagedType.U2)]
+			public ushort wRepeatCount;
+			[FieldOffset (6), MarshalAs (UnmanagedType.U2)]
+			public ushort wVirtualKeyCode;
+			[FieldOffset (8), MarshalAs (UnmanagedType.U2)]
+			public ushort wVirtualScanCode;
+			[FieldOffset (10)]
+			public char UnicodeChar;
+			[FieldOffset (12), MarshalAs (UnmanagedType.U4)]
+			public ControlKeyState dwControlKeyState;
+		}
+
+		[Flags]
+		public enum ButtonState {
+			Button1Pressed = 1,
+			Button2Pressed = 4,
+			Button3Pressed = 8,
+			Button4Pressed = 16,
+			RightmostButtonPressed = 2,
+
+		}
+
+		[Flags]
+		public enum ControlKeyState {
+			RightAltPressed = 1,
+			LeftAltPressed = 2,
+			RightControlPressed = 4,
+			LeftControlPressed = 8,
+			ShiftPressed = 16,
+			NumlockOn = 32,
+			ScrolllockOn = 64,
+			CapslockOn = 128,
+			EnhancedKey = 256
+		}
+
+		[Flags]
+		public enum EventFlags {
+			MouseMoved = 1,
+			DoubleClick = 2,
+			MouseWheeled = 4,
+			MouseHorizontalWheeled = 8
+		}
+
+		[StructLayout (LayoutKind.Explicit)]
+		public struct MouseEventRecord {
+			[FieldOffset (0)]
+			public Coordinate MousePosition;
+			[FieldOffset (4)]
+			public ButtonState ButtonState;
+			[FieldOffset (8)]
+			public ControlKeyState ControlKeyState;
+			[FieldOffset (12)]
+			public EventFlags EventFlags;
+
+			public override string ToString ()
+			{
+				return $"[Mouse({MousePosition},{ButtonState},{ControlKeyState},{EventFlags}";
+			}
+		}
+
+		[StructLayout (LayoutKind.Sequential)]
+		public struct Coordinate {
+			public short X;
+			public short Y;
+
+			public Coordinate (short X, short Y)
+			{
+				this.X = X;
+				this.Y = Y;
+			}
+
+			public override string ToString () => $"({X},{Y})";
+		};
+
+		internal struct WindowBufferSizeRecord {
+			public Coordinate size;
+
+			public WindowBufferSizeRecord (short x, short y)
+			{
+				this.size = new Coordinate (x, y);
+			}
+
+			public override string ToString () => $"[WindowBufferSize{size}";
+		}
+
+		[StructLayout (LayoutKind.Sequential)]
+		public struct MenuEventRecord {
+			public uint dwCommandId;
+		}
+
+		[StructLayout (LayoutKind.Sequential)]
+		public struct FocusEventRecord {
+			public uint bSetFocus;
+		}
+
+		public enum EventType {
+			Focus = 0x10,
+			Key = 0x1,
+			Menu = 0x8,
+			Mouse = 2,
+			WindowBufferSize = 4
+		}
+
+		[StructLayout (LayoutKind.Explicit)]
+		public struct InputRecord {
+			[FieldOffset (0)]
+			public EventType EventType;
+			[FieldOffset (4)]
+			public KeyEventRecord KeyEvent;
+			[FieldOffset (4)]
+			public MouseEventRecord MouseEvent;
+			[FieldOffset (4)]
+			public WindowBufferSizeRecord WindowBufferSizeEvent;
+			[FieldOffset (4)]
+			public MenuEventRecord MenuEvent;
+			[FieldOffset (4)]
+			public FocusEventRecord FocusEvent;
+
+			public override string ToString ()
+			{
+				switch (EventType) {
+				case EventType.Focus:
+					return FocusEvent.ToString ();
+				case EventType.Key:
+					return KeyEvent.ToString ();
+				case EventType.Menu:
+					return MenuEvent.ToString ();
+				case EventType.Mouse:
+					return MouseEvent.ToString ();
+				case EventType.WindowBufferSize:
+					return WindowBufferSizeEvent.ToString ();
+				default:
+					return "Unknown event type: " + EventType;
+				}
+			}
+		};
+
+		[DllImport ("kernel32.dll", EntryPoint = "ReadConsoleInputW", CharSet = CharSet.Unicode)]
+		public static extern bool ReadConsoleInput (
+			IntPtr hConsoleInput,
+			[Out] InputRecord [] lpBuffer,
+			uint nLength,
+			out uint lpNumberOfEventsRead);
+
+		[DllImport ("kernel32.dll")]
+		static extern bool GetConsoleMode (IntPtr hConsoleHandle, out uint lpMode);
+
+		[DllImport ("kernel32.dll")]
+		static extern bool SetConsoleMode (IntPtr hConsoleHandle, uint dwMode);
+
+		public uint ConsoleMode {
+			get {
+				uint v;
+				GetConsoleMode (inputHandle, out v);
+				return v;
+			}
+
+			set {
+				SetConsoleMode (inputHandle, value);
+			}
+		}
+	}	
+	public class WindowsDriver {
+		public WindowsDriver ()
+		{
+		}
+	}
+}