Files
Terminal.Gui/Terminal.Gui/Drivers/WindowsDriver.cs
2020-05-21 22:51:23 +01:00

1212 lines
35 KiB
C#

//
// WindowsDriver.cs: Windows specific driver
//
// Authors:
// Miguel de Icaza (miguel@gnome.org)
// Nick Van Dyck (vandyck.nick@outlook.com)
//
// Copyright (c) 2018
//
// 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.CodeDom;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Threading;
using System.Threading.Tasks;
using Mono.Terminal;
using NStack;
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;
internal IntPtr InputHandle, OutputHandle;
IntPtr ScreenBuffer;
uint originalConsoleMode;
public WindowsConsole ()
{
InputHandle = GetStdHandle (STD_INPUT_HANDLE);
OutputHandle = GetStdHandle (STD_OUTPUT_HANDLE);
originalConsoleMode = ConsoleMode;
var newConsoleMode = originalConsoleMode;
newConsoleMode |= (uint)(ConsoleModes.EnableMouseInput | ConsoleModes.EnableExtendedFlags);
newConsoleMode &= ~(uint)ConsoleModes.EnableQuickEditMode;
newConsoleMode &= ~(uint)ConsoleModes.EnableProcessedInput;
ConsoleMode = newConsoleMode;
}
public CharInfo [] OriginalStdOutChars;
public bool WriteToConsole (CharInfo [] charInfoBuffer, Coord coords, SmallRect window)
{
if (ScreenBuffer == IntPtr.Zero) {
ScreenBuffer = CreateConsoleScreenBuffer (
DesiredAccess.GenericRead | DesiredAccess.GenericWrite,
ShareMode.FileShareRead | ShareMode.FileShareWrite,
IntPtr.Zero,
1,
IntPtr.Zero
);
if (ScreenBuffer == INVALID_HANDLE_VALUE) {
var err = Marshal.GetLastWin32Error ();
if (err != 0)
throw new System.ComponentModel.Win32Exception (err);
}
if (!SetConsoleActiveScreenBuffer (ScreenBuffer)) {
var err = Marshal.GetLastWin32Error ();
throw new System.ComponentModel.Win32Exception (err);
}
OriginalStdOutChars = new CharInfo [Console.WindowHeight * Console.WindowWidth];
ReadConsoleOutput (OutputHandle, OriginalStdOutChars, coords, new Coord () { X = 0, Y = 0 }, ref window);
}
return WriteConsoleOutput (ScreenBuffer, charInfoBuffer, coords, new Coord () { X = window.Left, Y = window.Top }, ref window);
}
public bool SetCursorPosition (Coord position)
{
return SetConsoleCursorPosition (ScreenBuffer, position);
}
public void Cleanup ()
{
ConsoleMode = originalConsoleMode;
//ContinueListeningForConsoleEvents = false;
if (!SetConsoleActiveScreenBuffer (OutputHandle)) {
var err = Marshal.GetLastWin32Error ();
Console.WriteLine ("Error: {0}", err);
}
if (ScreenBuffer != IntPtr.Zero)
CloseHandle (ScreenBuffer);
ScreenBuffer = IntPtr.Zero;
}
//bool ContinueListeningForConsoleEvents = true;
public uint ConsoleMode {
get {
uint v;
GetConsoleMode (InputHandle, out v);
return v;
}
set {
SetConsoleMode (InputHandle, value);
}
}
[Flags]
public enum ConsoleModes : uint {
EnableProcessedInput = 1,
EnableMouseInput = 16,
EnableQuickEditMode = 64,
EnableExtendedFlags = 128,
}
[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,
WheeledUp = unchecked((int)0x780000),
WheeledDown = unchecked((int)0xFF880000),
}
[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 : ushort {
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;
}
}
};
[Flags]
enum ShareMode : uint {
FileShareRead = 1,
FileShareWrite = 2,
}
[Flags]
enum DesiredAccess : uint {
GenericRead = 2147483648,
GenericWrite = 1073741824,
}
[StructLayout (LayoutKind.Sequential)]
public struct ConsoleScreenBufferInfo {
public Coord dwSize;
public Coord dwCursorPosition;
public ushort wAttributes;
public SmallRect srWindow;
public Coord dwMaximumWindowSize;
}
[StructLayout (LayoutKind.Sequential)]
public struct Coord {
public short X;
public short Y;
public Coord (short X, short Y)
{
this.X = X;
this.Y = Y;
}
public override string ToString () => $"({X},{Y})";
};
[StructLayout (LayoutKind.Explicit, CharSet = CharSet.Unicode)]
public struct CharUnion {
[FieldOffset (0)] public char UnicodeChar;
[FieldOffset (0)] public byte AsciiChar;
}
[StructLayout (LayoutKind.Explicit, CharSet = CharSet.Unicode)]
public struct CharInfo {
[FieldOffset (0)] public CharUnion Char;
[FieldOffset (2)] public ushort Attributes;
}
[StructLayout (LayoutKind.Sequential)]
public struct SmallRect {
public short Left;
public short Top;
public short Right;
public short Bottom;
public static void MakeEmpty (ref SmallRect rect)
{
rect.Left = -1;
}
public static void Update (ref SmallRect rect, short col, short row)
{
if (rect.Left == -1) {
//System.Diagnostics.Debugger.Log (0, "debug", $"damager From Empty {col},{row}\n");
rect.Left = rect.Right = col;
rect.Bottom = rect.Top = row;
return;
}
if (col >= rect.Left && col <= rect.Right && row >= rect.Top && row <= rect.Bottom)
return;
if (col < rect.Left)
rect.Left = col;
if (col > rect.Right)
rect.Right = col;
if (row < rect.Top)
rect.Top = row;
if (row > rect.Bottom)
rect.Bottom = row;
//System.Diagnostics.Debugger.Log (0, "debug", $"Expanding {rect.ToString ()}\n");
}
public override string ToString ()
{
return $"Left={Left},Top={Top},Right={Right},Bottom={Bottom}";
}
}
[DllImport ("kernel32.dll", SetLastError = true)]
static extern IntPtr GetStdHandle (int nStdHandle);
[DllImport ("kernel32.dll", SetLastError = true)]
static extern bool CloseHandle (IntPtr handle);
[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", SetLastError = true, CharSet = CharSet.Unicode)]
static extern bool ReadConsoleOutput (
IntPtr hConsoleOutput,
[Out] CharInfo [] lpBuffer,
Coord dwBufferSize,
Coord dwBufferCoord,
ref SmallRect lpReadRegion
);
[DllImport ("kernel32.dll", EntryPoint = "WriteConsoleOutput", SetLastError = true, CharSet = CharSet.Unicode)]
static extern bool WriteConsoleOutput (
IntPtr hConsoleOutput,
CharInfo [] lpBuffer,
Coord dwBufferSize,
Coord dwBufferCoord,
ref SmallRect lpWriteRegion
);
[DllImport ("kernel32.dll")]
static extern bool SetConsoleCursorPosition (IntPtr hConsoleOutput, Coord dwCursorPosition);
[DllImport ("kernel32.dll")]
static extern bool GetConsoleMode (IntPtr hConsoleHandle, out uint lpMode);
[DllImport ("kernel32.dll")]
static extern bool SetConsoleMode (IntPtr hConsoleHandle, uint dwMode);
[DllImport ("kernel32.dll", SetLastError = true)]
static extern IntPtr CreateConsoleScreenBuffer (
DesiredAccess dwDesiredAccess,
ShareMode dwShareMode,
IntPtr secutiryAttributes,
UInt32 flags,
IntPtr screenBufferData
);
internal static IntPtr INVALID_HANDLE_VALUE = new IntPtr (-1);
[DllImport ("kernel32.dll", SetLastError = true)]
static extern bool SetConsoleActiveScreenBuffer (IntPtr Handle);
[DllImport ("kernel32.dll", SetLastError = true)]
static extern bool GetNumberOfConsoleInputEvents (IntPtr handle, out uint lpcNumberOfEvents);
public uint InputEventCount {
get {
uint v;
GetNumberOfConsoleInputEvents (InputHandle, out v);
return v;
}
}
}
internal class WindowsDriver : ConsoleDriver, Mono.Terminal.IMainLoopDriver {
static bool sync = false;
ManualResetEventSlim eventReady = new ManualResetEventSlim (false);
ManualResetEventSlim waitForProbe = new ManualResetEventSlim (false);
MainLoop mainLoop;
WindowsConsole.CharInfo [] OutputBuffer;
int cols, rows;
WindowsConsole winConsole;
WindowsConsole.SmallRect damageRegion;
public override int Cols => cols;
public override int Rows => rows;
public WindowsDriver ()
{
winConsole = new WindowsConsole ();
SetupColorsAndBorders ();
cols = Console.WindowWidth;
rows = Console.WindowHeight;
WindowsConsole.SmallRect.MakeEmpty (ref damageRegion);
ResizeScreen ();
UpdateOffScreen ();
Task.Run ((Action)WindowsInputHandler);
}
private void SetupColorsAndBorders ()
{
Colors.TopLevel = new ColorScheme ();
Colors.Base = new ColorScheme ();
Colors.Dialog = new ColorScheme ();
Colors.Menu = new ColorScheme ();
Colors.Error = new ColorScheme ();
Colors.TopLevel.Normal = MakeColor (ConsoleColor.Green, ConsoleColor.Black);
Colors.TopLevel.Focus = MakeColor (ConsoleColor.White, ConsoleColor.DarkCyan);
Colors.TopLevel.HotNormal = MakeColor (ConsoleColor.DarkYellow, ConsoleColor.Black);
Colors.TopLevel.HotFocus = MakeColor (ConsoleColor.DarkBlue, ConsoleColor.DarkCyan);
Colors.Base.Normal = MakeColor (ConsoleColor.White, ConsoleColor.DarkBlue);
Colors.Base.Focus = MakeColor (ConsoleColor.Black, ConsoleColor.Gray);
Colors.Base.HotNormal = MakeColor (ConsoleColor.DarkCyan, ConsoleColor.DarkBlue);
Colors.Base.HotFocus = MakeColor (ConsoleColor.Blue, ConsoleColor.Gray);
Colors.Menu.Normal = MakeColor (ConsoleColor.White, ConsoleColor.DarkGray);
Colors.Menu.Focus = MakeColor (ConsoleColor.White, ConsoleColor.Black);
Colors.Menu.HotNormal = MakeColor (ConsoleColor.Yellow, ConsoleColor.DarkGray);
Colors.Menu.HotFocus = MakeColor (ConsoleColor.Yellow, ConsoleColor.Black);
Colors.Menu.Disabled = MakeColor (ConsoleColor.Gray, ConsoleColor.DarkGray);
Colors.Dialog.Normal = MakeColor (ConsoleColor.Black, ConsoleColor.Gray);
Colors.Dialog.Focus = MakeColor (ConsoleColor.Black, ConsoleColor.DarkGray);
Colors.Dialog.HotNormal = MakeColor (ConsoleColor.DarkBlue, ConsoleColor.Gray);
Colors.Dialog.HotFocus = MakeColor (ConsoleColor.DarkBlue, ConsoleColor.DarkGray);
Colors.Error.Normal = MakeColor (ConsoleColor.DarkRed, ConsoleColor.White);
Colors.Error.Focus = MakeColor (ConsoleColor.White, ConsoleColor.DarkRed);
Colors.Error.HotNormal = MakeColor (ConsoleColor.Black, ConsoleColor.White);
Colors.Error.HotFocus = MakeColor (ConsoleColor.Black, ConsoleColor.DarkRed);
HLine = '\u2500';
VLine = '\u2502';
Stipple = '\u2592';
Diamond = '\u25c6';
ULCorner = '\u250C';
LLCorner = '\u2514';
URCorner = '\u2510';
LRCorner = '\u2518';
LeftTee = '\u251c';
RightTee = '\u2524';
TopTee = '\u22a4';
BottomTee = '\u22a5';
}
[StructLayout (LayoutKind.Sequential)]
public struct ConsoleKeyInfoEx {
public ConsoleKeyInfo consoleKeyInfo;
public bool CapsLock;
public bool NumLock;
public ConsoleKeyInfoEx (ConsoleKeyInfo consoleKeyInfo, bool capslock, bool numlock)
{
this.consoleKeyInfo = consoleKeyInfo;
CapsLock = capslock;
NumLock = numlock;
}
}
// The records that we keep fetching
WindowsConsole.InputRecord [] result, records = new WindowsConsole.InputRecord [1];
void WindowsInputHandler ()
{
while (true) {
waitForProbe.Wait ();
waitForProbe.Reset ();
uint numberEventsRead = 0;
WindowsConsole.ReadConsoleInput (winConsole.InputHandle, records, 1, out numberEventsRead);
if (numberEventsRead == 0)
result = null;
else
result = records;
eventReady.Set ();
}
}
void IMainLoopDriver.Setup (MainLoop mainLoop)
{
this.mainLoop = mainLoop;
}
void IMainLoopDriver.Wakeup ()
{
//tokenSource.Cancel ();
eventReady.Reset ();
eventReady.Set ();
}
bool IMainLoopDriver.EventsPending (bool wait)
{
long now = DateTime.UtcNow.Ticks;
int waitTimeout;
if (mainLoop.timeouts.Count > 0) {
waitTimeout = (int)((mainLoop.timeouts.Keys [0] - now) / TimeSpan.TicksPerMillisecond);
if (waitTimeout < 0)
return true;
} else
waitTimeout = -1;
if (!wait)
waitTimeout = 0;
result = null;
waitForProbe.Set ();
try {
if (!tokenSource.IsCancellationRequested)
eventReady.Wait (waitTimeout, tokenSource.Token);
} catch (OperationCanceledException) {
return true;
} finally {
eventReady.Reset ();
}
if (!tokenSource.IsCancellationRequested)
return result != null;
tokenSource.Dispose ();
tokenSource = new CancellationTokenSource ();
return true;
}
Action<KeyEvent> keyHandler;
Action<KeyEvent> keyDownHandler;
Action<KeyEvent> keyUpHandler;
Action<MouseEvent> mouseHandler;
public override void PrepareToRun (MainLoop mainLoop, Action<KeyEvent> keyHandler, Action<KeyEvent> keyDownHandler, Action<KeyEvent> keyUpHandler, Action<MouseEvent> mouseHandler)
{
this.keyHandler = keyHandler;
this.keyDownHandler = keyDownHandler;
this.keyUpHandler = keyUpHandler;
this.mouseHandler = mouseHandler;
}
void IMainLoopDriver.MainIteration ()
{
if (result == null)
return;
var inputEvent = result [0];
switch (inputEvent.EventType) {
case WindowsConsole.EventType.Key:
var map = MapKey (ToConsoleKeyInfoEx (inputEvent.KeyEvent));
if (map == (Key)0xffffffff) {
KeyEvent key = new KeyEvent ();
// Shift = VK_SHIFT = 0x10
// Ctrl = VK_CONTROL = 0x11
// Alt = VK_MENU = 0x12
if (inputEvent.KeyEvent.dwControlKeyState.HasFlag (WindowsConsole.ControlKeyState.CapslockOn)) {
inputEvent.KeyEvent.dwControlKeyState &= ~WindowsConsole.ControlKeyState.CapslockOn;
}
if (inputEvent.KeyEvent.dwControlKeyState.HasFlag (WindowsConsole.ControlKeyState.ScrolllockOn)) {
inputEvent.KeyEvent.dwControlKeyState &= ~WindowsConsole.ControlKeyState.ScrolllockOn;
}
if (inputEvent.KeyEvent.dwControlKeyState.HasFlag (WindowsConsole.ControlKeyState.NumlockOn)) {
inputEvent.KeyEvent.dwControlKeyState &= ~WindowsConsole.ControlKeyState.NumlockOn;
}
switch (inputEvent.KeyEvent.dwControlKeyState) {
case WindowsConsole.ControlKeyState.RightAltPressed:
case WindowsConsole.ControlKeyState.RightAltPressed |
WindowsConsole.ControlKeyState.LeftControlPressed |
WindowsConsole.ControlKeyState.EnhancedKey:
case WindowsConsole.ControlKeyState.EnhancedKey:
key = new KeyEvent (Key.CtrlMask | Key.AltMask);
break;
case WindowsConsole.ControlKeyState.LeftAltPressed:
key = new KeyEvent (Key.AltMask);
break;
case WindowsConsole.ControlKeyState.RightControlPressed:
case WindowsConsole.ControlKeyState.LeftControlPressed:
key = new KeyEvent (Key.CtrlMask);
break;
case WindowsConsole.ControlKeyState.ShiftPressed:
key = new KeyEvent (Key.ShiftMask);
break;
case WindowsConsole.ControlKeyState.NumlockOn:
break;
case WindowsConsole.ControlKeyState.ScrolllockOn:
break;
case WindowsConsole.ControlKeyState.CapslockOn:
break;
default:
switch (inputEvent.KeyEvent.wVirtualKeyCode) {
case 0x10:
key = new KeyEvent (Key.ShiftMask);
break;
case 0x11:
key = new KeyEvent (Key.CtrlMask);
break;
case 0x12:
key = new KeyEvent (Key.AltMask);
break;
default:
key = new KeyEvent (Key.Unknown);
break;
}
break;
}
if (inputEvent.KeyEvent.bKeyDown)
keyDownHandler (key);
else
keyUpHandler (key);
} else {
if (inputEvent.KeyEvent.bKeyDown) {
// Key Down - Fire KeyDown Event and KeyStroke (ProcessKey) Event
keyHandler (new KeyEvent (map));
keyDownHandler (new KeyEvent (map));
} else {
keyUpHandler (new KeyEvent (map));
}
}
break;
case WindowsConsole.EventType.Mouse:
mouseHandler (ToDriverMouse (inputEvent.MouseEvent));
if (IsButtonReleased)
mouseHandler (ToDriverMouse (inputEvent.MouseEvent));
break;
case WindowsConsole.EventType.WindowBufferSize:
cols = inputEvent.WindowBufferSizeEvent.size.X;
rows = inputEvent.WindowBufferSizeEvent.size.Y;
ResizeScreen ();
UpdateOffScreen ();
TerminalResized?.Invoke ();
break;
}
result = null;
}
WindowsConsole.ButtonState? LastMouseButtonPressed = null;
bool IsButtonPressed = false;
bool IsButtonReleased = false;
bool IsButtonDoubleClicked = false;
Point point;
MouseEvent ToDriverMouse (WindowsConsole.MouseEventRecord mouseEvent)
{
MouseFlags mouseFlag = MouseFlags.AllEvents;
if (IsButtonDoubleClicked) {
Task.Run (async () => {
await Task.Delay (100);
IsButtonDoubleClicked = false;
});
}
// The ButtonState member of the MouseEvent structure has bit corresponding to each mouse button.
// This will tell when a mouse button is pressed. When the button is released this event will
// be fired with it's bit set to 0. So when the button is up ButtonState will be 0.
// To map to the correct driver events we save the last pressed mouse button so we can
// map to the correct clicked event.
if ((LastMouseButtonPressed != null || IsButtonReleased) && mouseEvent.ButtonState != 0) {
LastMouseButtonPressed = null;
IsButtonPressed = false;
IsButtonReleased = false;
}
if ((mouseEvent.EventFlags == 0 && LastMouseButtonPressed == null && !IsButtonDoubleClicked) ||
(mouseEvent.EventFlags == WindowsConsole.EventFlags.MouseMoved &&
mouseEvent.ButtonState != 0 && !IsButtonReleased && !IsButtonDoubleClicked)) {
switch (mouseEvent.ButtonState) {
case WindowsConsole.ButtonState.Button1Pressed:
mouseFlag = MouseFlags.Button1Pressed;
break;
case WindowsConsole.ButtonState.Button2Pressed:
mouseFlag = MouseFlags.Button2Pressed;
break;
case WindowsConsole.ButtonState.RightmostButtonPressed:
mouseFlag = MouseFlags.Button3Pressed;
break;
}
if (mouseEvent.EventFlags == WindowsConsole.EventFlags.MouseMoved) {
mouseFlag |= MouseFlags.ReportMousePosition;
point = new Point ();
IsButtonReleased = false;
} else {
point = new Point () {
X = mouseEvent.MousePosition.X,
Y = mouseEvent.MousePosition.Y
};
}
LastMouseButtonPressed = mouseEvent.ButtonState;
IsButtonPressed = true;
if ((mouseFlag & MouseFlags.ReportMousePosition) == 0) {
Task.Run (async () => {
while (IsButtonPressed) {
await Task.Delay (200);
var me = new MouseEvent () {
X = mouseEvent.MousePosition.X,
Y = mouseEvent.MousePosition.Y,
Flags = mouseFlag
};
var view = Application.wantContinuousButtonPressedView;
if (view == null)
break;
if (IsButtonPressed && (mouseFlag & MouseFlags.ReportMousePosition) == 0) {
mouseHandler (me);
mainLoop.Driver.Wakeup ();
}
}
});
}
} else if ((mouseEvent.EventFlags == 0 || mouseEvent.EventFlags == WindowsConsole.EventFlags.MouseMoved) &&
LastMouseButtonPressed != null && !IsButtonReleased && !IsButtonDoubleClicked) {
switch (LastMouseButtonPressed) {
case WindowsConsole.ButtonState.Button1Pressed:
mouseFlag = MouseFlags.Button1Released;
break;
case WindowsConsole.ButtonState.Button2Pressed:
mouseFlag = MouseFlags.Button2Released;
break;
case WindowsConsole.ButtonState.RightmostButtonPressed:
mouseFlag = MouseFlags.Button3Released;
break;
}
IsButtonPressed = false;
IsButtonReleased = true;
} else if ((mouseEvent.EventFlags == 0 || mouseEvent.EventFlags == WindowsConsole.EventFlags.MouseMoved) &&
IsButtonReleased) {
var p = new Point () {
X = mouseEvent.MousePosition.X,
Y = mouseEvent.MousePosition.Y
};
if (p == point) {
switch (LastMouseButtonPressed) {
case WindowsConsole.ButtonState.Button1Pressed:
mouseFlag = MouseFlags.Button1Clicked;
break;
case WindowsConsole.ButtonState.Button2Pressed:
mouseFlag = MouseFlags.Button2Clicked;
break;
case WindowsConsole.ButtonState.RightmostButtonPressed:
mouseFlag = MouseFlags.Button3Clicked;
break;
}
} else {
mouseFlag = 0;
}
LastMouseButtonPressed = null;
IsButtonReleased = false;
} else if (mouseEvent.EventFlags.HasFlag (WindowsConsole.EventFlags.DoubleClick)) {
switch (mouseEvent.ButtonState) {
case WindowsConsole.ButtonState.Button1Pressed:
mouseFlag = MouseFlags.Button1DoubleClicked;
break;
case WindowsConsole.ButtonState.Button2Pressed:
mouseFlag = MouseFlags.Button2DoubleClicked;
break;
case WindowsConsole.ButtonState.RightmostButtonPressed:
mouseFlag = MouseFlags.Button3DoubleClicked;
break;
}
IsButtonDoubleClicked = true;
} else if (mouseEvent.EventFlags == 0 && mouseEvent.ButtonState != 0 && IsButtonDoubleClicked) {
switch (mouseEvent.ButtonState) {
case WindowsConsole.ButtonState.Button1Pressed:
mouseFlag = MouseFlags.Button1TripleClicked;
break;
case WindowsConsole.ButtonState.Button2Pressed:
mouseFlag = MouseFlags.Button2TripleClicked;
break;
case WindowsConsole.ButtonState.RightmostButtonPressed:
mouseFlag = MouseFlags.Button3TripleClicked;
break;
}
IsButtonDoubleClicked = false;
} else if (mouseEvent.EventFlags == WindowsConsole.EventFlags.MouseWheeled) {
switch (mouseEvent.ButtonState) {
case WindowsConsole.ButtonState.WheeledUp:
mouseFlag = MouseFlags.WheeledUp;
break;
case WindowsConsole.ButtonState.WheeledDown:
mouseFlag = MouseFlags.WheeledDown;
break;
}
} else if (mouseEvent.EventFlags == WindowsConsole.EventFlags.MouseMoved) {
mouseFlag = MouseFlags.ReportMousePosition;
} else if (mouseEvent.ButtonState == 0 && mouseEvent.EventFlags == 0) {
mouseFlag = 0;
}
mouseFlag = SetControlKeyStates (mouseEvent, mouseFlag);
return new MouseEvent () {
X = mouseEvent.MousePosition.X,
Y = mouseEvent.MousePosition.Y,
Flags = mouseFlag
};
}
static MouseFlags SetControlKeyStates (WindowsConsole.MouseEventRecord mouseEvent, MouseFlags mouseFlag)
{
if (mouseEvent.ControlKeyState.HasFlag (WindowsConsole.ControlKeyState.RightControlPressed) ||
mouseEvent.ControlKeyState.HasFlag (WindowsConsole.ControlKeyState.LeftControlPressed))
mouseFlag |= MouseFlags.ButtonCtrl;
if (mouseEvent.ControlKeyState.HasFlag (WindowsConsole.ControlKeyState.ShiftPressed))
mouseFlag |= MouseFlags.ButtonShift;
if (mouseEvent.ControlKeyState.HasFlag (WindowsConsole.ControlKeyState.RightAltPressed) ||
mouseEvent.ControlKeyState.HasFlag (WindowsConsole.ControlKeyState.LeftAltPressed))
mouseFlag |= MouseFlags.ButtonAlt;
return mouseFlag;
}
public ConsoleKeyInfoEx ToConsoleKeyInfoEx (WindowsConsole.KeyEventRecord keyEvent)
{
var state = keyEvent.dwControlKeyState;
bool shift = (state & WindowsConsole.ControlKeyState.ShiftPressed) != 0;
bool alt = (state & (WindowsConsole.ControlKeyState.LeftAltPressed | WindowsConsole.ControlKeyState.RightAltPressed)) != 0;
bool control = (state & (WindowsConsole.ControlKeyState.LeftControlPressed | WindowsConsole.ControlKeyState.RightControlPressed)) != 0;
bool capslock = (state & (WindowsConsole.ControlKeyState.CapslockOn)) != 0;
bool numlock = (state & (WindowsConsole.ControlKeyState.NumlockOn)) != 0;
var ConsoleKeyInfo = new ConsoleKeyInfo (keyEvent.UnicodeChar, (ConsoleKey)keyEvent.wVirtualKeyCode, shift, alt, control);
return new ConsoleKeyInfoEx (ConsoleKeyInfo, capslock, numlock);
}
public Key MapKey (ConsoleKeyInfoEx keyInfoEx)
{
var keyInfo = keyInfoEx.consoleKeyInfo;
switch (keyInfo.Key) {
case ConsoleKey.Escape:
return MapKeyModifiers (keyInfo, Key.Esc);
case ConsoleKey.Tab:
return keyInfo.Modifiers == ConsoleModifiers.Shift ? Key.BackTab : Key.Tab;
case ConsoleKey.Home:
return MapKeyModifiers (keyInfo, Key.Home);
case ConsoleKey.End:
return MapKeyModifiers (keyInfo, Key.End);
case ConsoleKey.LeftArrow:
return MapKeyModifiers (keyInfo, Key.CursorLeft);
case ConsoleKey.RightArrow:
return MapKeyModifiers (keyInfo, Key.CursorRight);
case ConsoleKey.UpArrow:
return MapKeyModifiers (keyInfo, Key.CursorUp);
case ConsoleKey.DownArrow:
return MapKeyModifiers (keyInfo, Key.CursorDown);
case ConsoleKey.PageUp:
return MapKeyModifiers (keyInfo, Key.PageUp);
case ConsoleKey.PageDown:
return MapKeyModifiers (keyInfo, Key.PageDown);
case ConsoleKey.Enter:
return MapKeyModifiers (keyInfo, Key.Enter);
case ConsoleKey.Spacebar:
return MapKeyModifiers (keyInfo, Key.Space);
case ConsoleKey.Backspace:
return MapKeyModifiers (keyInfo, Key.Backspace);
case ConsoleKey.Delete:
return MapKeyModifiers (keyInfo, Key.DeleteChar);
case ConsoleKey.Insert:
return MapKeyModifiers (keyInfo, Key.InsertChar);
case ConsoleKey.NumPad0:
return keyInfoEx.NumLock ? (Key)(uint)'0' : Key.InsertChar;
case ConsoleKey.NumPad1:
return keyInfoEx.NumLock ? (Key)(uint)'1' : Key.End;
case ConsoleKey.NumPad2:
return keyInfoEx.NumLock ? (Key)(uint)'2' : Key.CursorDown;
case ConsoleKey.NumPad3:
return keyInfoEx.NumLock ? (Key)(uint)'3' : Key.PageDown;
case ConsoleKey.NumPad4:
return keyInfoEx.NumLock ? (Key)(uint)'4' : Key.CursorLeft;
case ConsoleKey.NumPad5:
return keyInfoEx.NumLock ? (Key)(uint)'5' : (Key)((uint)keyInfo.KeyChar);
case ConsoleKey.NumPad6:
return keyInfoEx.NumLock ? (Key)(uint)'6' : Key.CursorRight;
case ConsoleKey.NumPad7:
return keyInfoEx.NumLock ? (Key)(uint)'7' : Key.Home;
case ConsoleKey.NumPad8:
return keyInfoEx.NumLock ? (Key)(uint)'8' : Key.CursorUp;
case ConsoleKey.NumPad9:
return keyInfoEx.NumLock ? (Key)(uint)'9' : Key.PageUp;
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:
if (keyInfo.KeyChar == 0)
return Key.Unknown;
return (Key)((uint)keyInfo.KeyChar);
}
var key = keyInfo.Key;
//var alphaBase = ((keyInfo.Modifiers == ConsoleModifiers.Shift) ^ (keyInfoEx.CapsLock)) ? 'A' : 'a';
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.Alt | ConsoleModifiers.Control)) != 0) {
if (keyInfo.KeyChar == 0)
return (Key)(((uint)Key.AltMask) + ((uint)Key.ControlA + delta));
else
return (Key)((uint)keyInfo.KeyChar);
}
//return (Key)((uint)alphaBase + delta);
return (Key)((uint)keyInfo.KeyChar);
}
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));
return (Key)((uint)keyInfo.KeyChar);
}
if (key >= ConsoleKey.F1 && key <= ConsoleKey.F10) {
var delta = key - ConsoleKey.F1;
return (Key)((int)Key.F1 + delta);
}
return (Key)(0xffffffff);
}
private static Key MapKeyModifiers (ConsoleKeyInfo keyInfo, Key key)
{
Key keyMod = new Key ();
if (keyInfo.Modifiers.HasFlag (ConsoleModifiers.Shift))
keyMod = Key.ShiftMask;
if (keyInfo.Modifiers.HasFlag (ConsoleModifiers.Control))
keyMod |= Key.CtrlMask;
if (keyInfo.Modifiers.HasFlag (ConsoleModifiers.Alt))
keyMod |= Key.AltMask;
return keyMod != Key.ControlSpace ? keyMod | key : key;
}
public override void Init (Action terminalResized)
{
TerminalResized = terminalResized;
SetupColorsAndBorders ();
}
void ResizeScreen ()
{
OutputBuffer = new WindowsConsole.CharInfo [Rows * Cols];
Clip = new Rect (0, 0, Cols, Rows);
damageRegion = new WindowsConsole.SmallRect () {
Top = 0,
Left = 0,
Bottom = (short)Rows,
Right = (short)Cols
};
}
void UpdateOffScreen ()
{
for (int row = 0; row < rows; row++)
for (int col = 0; col < cols; col++) {
int position = row * cols + col;
OutputBuffer [position].Attributes = (ushort)Colors.TopLevel.Normal;
OutputBuffer [position].Char.UnicodeChar = ' ';
}
}
int ccol, crow;
public override void Move (int col, int row)
{
ccol = col;
crow = row;
}
public override void AddRune (Rune rune)
{
var position = crow * Cols + ccol;
if (Clip.Contains (ccol, crow)) {
OutputBuffer [position].Attributes = (ushort)currentAttribute;
OutputBuffer [position].Char.UnicodeChar = (char)rune;
WindowsConsole.SmallRect.Update (ref damageRegion, (short)ccol, (short)crow);
}
ccol++;
var runeWidth = Rune.ColumnWidth (rune);
if (runeWidth > 1) {
for (int i = 1; i < runeWidth; i++) {
AddStr (" ");
}
}
//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);
}
int currentAttribute;
CancellationTokenSource tokenSource = new CancellationTokenSource ();
public override void SetAttribute (Attribute c)
{
currentAttribute = c.value;
}
Attribute MakeColor (ConsoleColor f, ConsoleColor b)
{
// Encode the colors into the int value.
return new Attribute () {
value = ((int)f | (int)b << 4),
foreground = (Color)f,
background = (Color)b
};
}
public override Attribute MakeAttribute (Color fore, Color back)
{
return MakeColor ((ConsoleColor)fore, (ConsoleColor)back);
}
public override void Refresh ()
{
UpdateScreen ();
#if false
var bufferCoords = new WindowsConsole.Coord (){
X = (short)Clip.Width,
Y = (short)Clip.Height
};
var window = new WindowsConsole.SmallRect (){
Top = 0,
Left = 0,
Right = (short)Clip.Right,
Bottom = (short)Clip.Bottom
};
UpdateCursor();
winConsole.WriteToConsole (OutputBuffer, bufferCoords, window);
#endif
}
public override void UpdateScreen ()
{
if (damageRegion.Left == -1)
return;
var bufferCoords = new WindowsConsole.Coord () {
X = (short)Clip.Width,
Y = (short)Clip.Height
};
var window = new WindowsConsole.SmallRect () {
Top = 0,
Left = 0,
Right = (short)Clip.Right,
Bottom = (short)Clip.Bottom
};
UpdateCursor ();
winConsole.WriteToConsole (OutputBuffer, bufferCoords, damageRegion);
// System.Diagnostics.Debugger.Log(0, "debug", $"Region={damageRegion.Right - damageRegion.Left},{damageRegion.Bottom - damageRegion.Top}\n");
WindowsConsole.SmallRect.MakeEmpty (ref damageRegion);
}
public override void UpdateCursor ()
{
var position = new WindowsConsole.Coord () {
X = (short)ccol,
Y = (short)crow
};
winConsole.SetCursorPosition (position);
}
public override void End ()
{
winConsole.Cleanup ();
}
#region Unused
public override void SetColors (ConsoleColor foreground, ConsoleColor background)
{
}
public override void SetColors (short foregroundColorId, short backgroundColorId)
{
}
public override void Suspend ()
{
}
public override void StartReportingMouseMoves ()
{
}
public override void StopReportingMouseMoves ()
{
}
public override void UncookMouse ()
{
}
public override void CookMouse ()
{
}
#endregion
}
}