private static string Benchmark(int frameCount, IBufferedAbsConsole <CHAR_INFO> screen)
{
var r = new Random();
var stop = new Stopwatch();
stop.Start();
for (int i = 0; i < frameCount; i++)
{
var x = r.Next(screen.Width);
var y = r.Next(screen.Height);
var a = r.Next(26);
var clr = r.Next(0, 255);
screen[x, y] = new CHAR_INFO(TestHelper.GetCharOffset('A', a), (ushort)clr);
screen.Update();
if (i % 50 == 0)
{
System.Console.Title = i.ToString();
}
}
stop.Stop();
return($"{frameCount} frames in {stop.Elapsed} at {frameCount / stop.Elapsed.TotalSeconds} FPS");
}
protected override void Setup()
{
var letterA = new CHAR_INFO {
AsciiChar = 'A',
};
letterA.Attributes = (UInt16)
(FOREGROUND_RED | FOREGROUND_INTENSITY |
BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_INTENSITY);
var charBufSize = new COORD {
X = 1,
Y = 1,
};
var characterPos = new COORD {
X = 0,
Y = 0,
};
var writeArea = new SMALL_RECT {
Left = 0,
Top = 0,
Right = 0,
Bottom = 0,
};
WriteConsoleOutput(
WriteHandle, new CHAR_INFO[] { letterA }, charBufSize, characterPos, ref writeArea);
Console.Write("\n");
}
public static extern bool ScrollConsoleScreenBuffer(
IntPtr hConsoleOutput,
[In] ref SMALL_RECT lpScrollRectangle,
IntPtr lpClipRectangle,
COORD dwDestinationOrigin,
[In] ref CHAR_INFO lpFill
);
protected override void Setup()
{
var consoleBuffer = new CHAR_INFO[Width * Height];
for (int h = 0; h < Height; ++h)
{
for (int w = 0; w < Width; ++w)
{
consoleBuffer[w + Width * h].AsciiChar = 'A' /*(char)Random.Next(256)*/;
consoleBuffer[w + Width * h].Attributes = (UInt16)Random.Next(256);
}
}
var charBufSize = new COORD {
X = Width,
Y = Height,
};
var characterPos = new COORD {
X = 0,
Y = 0,
};
WriteConsoleOutput(
WriteHandle, consoleBuffer, charBufSize, characterPos, ref WindowSize);
}
private CHAR_INFO[] CreateCharInfoBuffer(int lines, params object[] items)
{
var result = new List <CHAR_INFO>();
var fg = _console.ForegroundColor;
var bg = _console.BackgroundColor;
foreach (var i in items)
{
var item = i;
if (item is char)
{
result.Add(new CHAR_INFO((char)item, fg, bg));
continue;
}
if (item is InvertedToken)
{
fg = (ConsoleColor)((int)fg ^ 7);
bg = (ConsoleColor)((int)bg ^ 7);
continue;
}
if (item is NextLineToken)
{
item = new string(' ', _console.BufferWidth - (result.Count % _console.BufferWidth));
fg = _console.ForegroundColor;
bg = _console.BackgroundColor;
// Fallthrough to string case.
}
if (item is string str)
{
result.AddRange(str.Select(c => new CHAR_INFO(c, fg, bg)));
continue;
}
if (item is TokenClassification)
{
fg = ForegroundColors[(int)(TokenClassification)item];
bg = BackgroundColors[(int)(TokenClassification)item];
continue;
}
if (item is Tuple <ConsoleColor, ConsoleColor> tuple)
{
fg = tuple.Item1;
bg = tuple.Item2;
continue;
}
throw new ArgumentException("Unexpected type");
}
var extraSpacesNeeded = (lines * _console.BufferWidth) - result.Count;
if (extraSpacesNeeded > 0)
{
var space = new CHAR_INFO(' ', _console.ForegroundColor, _console.BackgroundColor);
result.AddRange(Enumerable.Repeat(space, extraSpacesNeeded));
}
return(result.ToArray());
}
public void SetChar()
{
const ConCharAttributes attribute = (ConCharAttributes)0xCCCC;
CHAR_INFO source = new CHAR_INFO(' ', attribute);
var result = source.SetChar('x');
result.Char.Should().Be('x');
result.Attributes.Should().Be(attribute);
}
public void Setforeground()
{
const ConCharAttributes attribute = (ConCharAttributes)0xCCCC;
const ConCharAttributes expected = (ConCharAttributes)0xCCC0 | ConCharAttributes.ForeGroundGreen | ConCharAttributes.ForeGroundIntensity;
CHAR_INFO source = new CHAR_INFO('x', attribute);
var result = source.SetForeground(ConsoleColor.Green);
result.Char.Should().Be('x');
result.Attributes.Should().Be(expected);
}
/// <summary>
/// Renderer should call this method before any control render.
/// </summary>
public void Clear()
{
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
buffer[x, y] = new CHAR_INFO();
opacityMatrix[x, y] = 0;
}
}
}
public CHAR_INFO[] ReadConsoleOutput(ConsoleOutputHandle consoleOutputHandle, Rectangle region)
{
SMALL_RECT rect = new SMALL_RECT(region);
CHAR_INFO[] buffer = new CHAR_INFO[region.Width * region.Height];
if (!NativeMethods.ReadConsoleOutput(consoleOutputHandle, buffer, new COORD(region), default, ref rect))
{
throw Exceptions.Win32();
}
return(buffer);
}
static CHAR_INFO ToCharInfo(char c)
{
var info = new CHAR_INFO();
// Give it our character to write
info.Char.UnicodeChar = c;
// Use our attributes
info.Attributes = Attributes;
// Return info for this character
return(info);
}
//private char[,] buffer = new char[80, 25];
private void initBuffer()
{
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
buffer[y, x] = new CHAR_INFO( )
{
UnicodeChar = ' '
};
}
}
}
public void FillArea_CorrectArea_FilledCorrectly()
{
const char character = 'X';
Size size = new Size(4, 4);
var mainBuffer = Enumerable.Repeat(cc, 16).ToArray();
CHAR_INFO c0 = new CHAR_INFO
{
Attributes = attributes,
Char = character
};
var expectedBuffer = new[]
{
cc, cc, cc, cc,
cc, c0, c0, cc,
cc, c0, c0, cc,
cc, cc, cc, cc
};
bool written = false, successful = false;
using var stubbedApi = new StubbedNativeCalls();
stubbedApi.ReadConsoleOutputConsoleOutputHandleRectangle = (handle, rectangle) =>
{
rectangle.Size.Should().Be(size);
handle.Should().Be(stubbedApi.ScreenHandle);
return(mainBuffer);
};
stubbedApi.WriteConsoleOutputConsoleOutputHandleCHAR_INFOArrayRectangle = (handle, buffer, area) =>
{
written = true;
handle.Should().Be(stubbedApi.ScreenHandle);
area.Size.Should().Be(size);
buffer.Should().Equal(expectedBuffer);
successful = true;
};
var sut = new ConControls.Controls.Drawing.ConsoleGraphics(stubbedApi.ScreenHandle, stubbedApi, size,
new ConControls.Controls.Drawing.FrameCharSets());
sut.FillArea(
background: background,
foreColor: foreground,
c: character,
area: new Rectangle(1, 1, 2, 2));
written.Should().BeFalse();
mainBuffer.Should().Equal(expectedBuffer);
sut.Flush();
written.Should().BeTrue();
successful.Should().BeTrue();
}
internal void WriteOutputBuffer(char[] bufferChars, ConsoleColor[] bufferFg, ConsoleColor[] bufferBg, int width, int height, List <RowSpan> invalidSpans)
{
// This copying of the backbuffer data into a local CHAR_INFO array is a lot of
// copying that might be a perf issue. If so consider storing a CHAR_INFO array
// directly in the BackBuffer class.
var charinfos = new CHAR_INFO[bufferChars.Length];
for (int i = 0; i < bufferChars.Length; i += 1)
{
charinfos[i].UnicodeChar = bufferChars[i];
charinfos[i].Attributes = CharInfoAttributeFromConsoleColors(bufferFg[i], bufferBg[i]);
}
COORD bufferSize;
bufferSize.x = (short)width;
bufferSize.y = (short)height;
COORD bufferCoord;
SMALL_RECT writeRegion;
if (invalidSpans == null)
{
writeRegion.Top = 0;
writeRegion.Left = 0;
writeRegion.Bottom = (short)(height - 1);
writeRegion.Right = (short)(width - 1);
bufferCoord.x = 0;
bufferCoord.y = 0;
WriteConsoleOutput(_handleOut, charinfos, bufferSize, bufferCoord, ref writeRegion);
}
else
{
foreach (var span in invalidSpans)
{
writeRegion.Top = (short)span.Row;
writeRegion.Bottom = (short)span.Row;
writeRegion.Left = (short)span.Start;
writeRegion.Right = (short)(span.End - 1);
bufferCoord.y = writeRegion.Top;
bufferCoord.x = writeRegion.Left;
WriteConsoleOutput(_handleOut, charinfos, bufferSize, bufferCoord, ref writeRegion);
}
}
}
public static IEnumerable <string> ReadFromBuffer(short x, short y, short width, short height)
{
IntPtr buffer = Marshal.AllocHGlobal(width * height * Marshal.SizeOf(typeof(CHAR_INFO)));
if (buffer == null)
{
throw new OutOfMemoryException();
}
try
{
COORD coord = new COORD();
SMALL_RECT rc = new SMALL_RECT();
rc.Left = x;
rc.Top = y;
rc.Right = (short)(x + width - 1);
rc.Bottom = (short)(y + height - 1);
COORD size = new COORD();
size.X = width;
size.Y = height;
const int STD_OUTPUT_HANDLE = -11;
if (!ReadConsoleOutput(GetStdHandle(STD_OUTPUT_HANDLE), buffer, size, coord, ref rc))
{
// 'Not enough storage is available to process this command' may be raised for buffer size > 64K (see ReadConsoleOutput doc.)
throw new Win32Exception(Marshal.GetLastWin32Error());
}
IntPtr ptr = buffer;
for (int h = 0; h < height; h++)
{
StringBuilder sb = new StringBuilder();
for (int w = 0; w < width; w++)
{
CHAR_INFO ci = (CHAR_INFO)Marshal.PtrToStructure(ptr, typeof(CHAR_INFO));
char[] chars = Console.OutputEncoding.GetChars(ci.charData);
sb.Append(chars[0]);
ptr += Marshal.SizeOf(typeof(CHAR_INFO));
}
yield return(sb.ToString());
}
}
finally
{
Marshal.FreeHGlobal(buffer);
}
}
public override void ScrollBuffer(int lines)
{
var handle = GetStdHandle((uint)StandardHandleId.Output);
var scrollRectangle = new SMALL_RECT
{
Top = (short)lines,
Left = 0,
Bottom = (short)(Console.BufferHeight - 1),
Right = (short)Console.BufferWidth
};
var destinationOrigin = new COORD {
X = 0, Y = 0
};
var fillChar = new CHAR_INFO(' ', Console.ForegroundColor, Console.BackgroundColor);
ScrollConsoleScreenBuffer(handle, ref scrollRectangle, IntPtr.Zero, destinationOrigin, ref fillChar);
}
public static void DrawRectangle(int left, int top, int right, int bottom)
{
if (!AreScreenBufferArraysEqual(left, top, right, bottom))
{
int rows = bottom - top + 1;
int cols = right - left + 1;
CHAR_INFO[] rectBuf = new CHAR_INFO[rows * cols];
int i = 0;
for (int row = top; row <= bottom; row++)
{
for (int col = left; col <= right; col++)
{
rectBuf[i++] = ScreenBuffer.screenBuf[(row * ScreenBuffer.cols) + col];
}
}
COORD rectBufSize = new COORD()
{
X = (short)cols, Y = (short)rows
};
COORD rectBufCoord = new COORD()
{
X = 0, Y = 0
};
SMALL_RECT rectangle = new SMALL_RECT()
{
Left = (short)left, Top = (short)top, Right = (short)right, Bottom = (short)bottom
};
// note that the screen is NOT cleared at any point as this will simply
// overwrite the existing values on screen. Clearing will cause flickering again.
bool b = WriteConsoleOutput(
ScreenBuffer.handle,
rectBuf,
rectBufSize,
rectBufCoord,
ref rectangle);
Array.Copy(ScreenBuffer.screenBuf, ScreenBuffer.screenBufCopy, ScreenBuffer.screenBuf.Length);
}
}
public void DrawBackground_AreaTooLarge_ClippedCorrectly()
{
const char expectedCharacter = default;
Size size = new Size(4, 4);
var mainBuffer = Enumerable.Repeat(cc, 16).ToArray();
CHAR_INFO c0 = new CHAR_INFO
{
Attributes = background.ToBackgroundColor() | background.ToForegroundColor(),
Char = expectedCharacter
};
var expectedBuffer = Enumerable.Repeat(c0, 16).ToArray();
bool written = false, successful = false;
using var stubbedApi = new StubbedNativeCalls();
stubbedApi.ReadConsoleOutputConsoleOutputHandleRectangle = (handle, rectangle) =>
{
rectangle.Size.Should().Be(size);
handle.Should().Be(stubbedApi.ScreenHandle);
return(mainBuffer);
};
stubbedApi.WriteConsoleOutputConsoleOutputHandleCHAR_INFOArrayRectangle = (handle, buffer, area) =>
{
written = true;
handle.Should().Be(stubbedApi.ScreenHandle);
area.Size.Should().Be(size);
buffer.Should().Equal(expectedBuffer);
successful = true;
};
var sut = new ConControls.Controls.Drawing.ConsoleGraphics(stubbedApi.ScreenHandle, stubbedApi, size,
new ConControls.Controls.Drawing.FrameCharSets());
sut.DrawBackground(
color: background,
area: new Rectangle(-1, -1, 7, 7));
written.Should().BeFalse();
mainBuffer.Should().Equal(expectedBuffer);
sut.Flush();
written.Should().BeTrue();
successful.Should().BeTrue();
}
private static void Main(string[] args)
{
uint outChars;
IntPtr consoleHandle = Process.GetCurrentProcess().MainWindowHandle;
CConsole.WriteConsole(consoleHandle, "HELLO C WORLD FROM C#", 21, out outChars, new IntPtr(0));
Console.WriteLine("OutputWrite testing:");
CHAR_INFO[,] BufferData = new CHAR_INFO[8, 2];
CHAR_INFO a = new CHAR_INFO {
UnicodeChar = 'C'
};
SMALL_RECT writeBounds = new SMALL_RECT {
Top = 3, Left = 2, Bottom = 5, Right = 10
};
CConsole.WriteConsoleOutput(consoleHandle, BufferData, new COORD {
X = 8, Y = 2
}, new COORD {
X = 2, Y = 4
}, ref writeBounds);
}
/// <summary>
/// Копирует affectedRect из буфера на экран консоли с учетом того, что буфер
/// находится на экране консоли по смещению offset.
/// </summary>
/// <param name="canvas"></param>
/// <param name="affectedRect">Измененная область относительно this.</param>
/// <param name="offset">В какой точке экрана размещен контрол (см <see cref="Renderer.RootElementRect"/>).</param>
public void CopyToPhysicalCanvas(PhysicalCanvas canvas, Rect affectedRect, Point offset)
{
Rect rectToCopy = affectedRect;
Rect bufferRect = new Rect(new Point(0, 0), new Size(this.width, this.height));
Rect canvasRect = new Rect(new Point(-offset.X, -offset.Y), canvas.Size);
rectToCopy.Intersect(canvasRect);
rectToCopy.Intersect(bufferRect);
//
for (int x = 0; x < rectToCopy.width; x++)
{
int bufferX = x + rectToCopy.x;
int canvasX = x + rectToCopy.x + offset.x;
for (int y = 0; y < rectToCopy.height; y++)
{
int bufferY = y + rectToCopy.y;
int canvasY = y + rectToCopy.y + offset.y;
CHAR_INFO charInfo = buffer[bufferX, bufferY];
canvas[canvasX][canvasY].Assign(charInfo);
}
}
}
/// <summary>
/// Write a line of text with specific foreground/background colors to the console.
/// </summary>
/// <param name="x">The 0-based destination x coordinate.</param>
/// <param name="y">The 0-based destination y coordinate.</param>
/// <param name="foreground">Foreground color</param>
/// <param name="background">Background color</param>
/// <param name="s">The string to write.</param>
/// <returns>True if the write was successful, false if there was a failure.</returns>
public static bool WriteColor(int x, int y, ConsoleColor foreground, ConsoleColor background, string s)
{
// the attribute is the combination of the foreground color [0x00, 0x0F] and background color [0x00, 0xF0]
ushort attribute = (ushort)((int)foreground | (((int)background) << 4));
// Build a CHAR_INFO array containing the characters we want to write and the attributes
CHAR_INFO[] info = new CHAR_INFO[s.Length];
char[] array = s.ToCharArray();
for (int i = 0; i < s.Length; i++)
{
info[i].UnicodeChar = (ushort)array[i];
info[i].Attributes = attribute;
}
// Writing the length of the string, one character tall.
COORD myBufferSize;
myBufferSize.X = (short)s.Length;
myBufferSize.Y = (short)1;
// Starting at 0,0 in the source CHAR_INFO array
COORD myBufferPosition;
myBufferPosition.X = 0;
myBufferPosition.Y = 0;
// from x..(x+s.Length), one line for y direction.
SMALL_RECT mySmallRect;
mySmallRect.Left = (short)x;
mySmallRect.Right = (short)(x + s.Length);
mySmallRect.Top = (short)y;
mySmallRect.Bottom = (short)y;
// Write.
return(WriteConsoleOutput(GetStdHandle(STD_OUTPUT_HANDLE), info, myBufferSize, myBufferPosition, ref mySmallRect));
}
public string readvalue(ref System.IntPtr ptr, short a)
{
SMALL_RECT srctReadRect = new SMALL_RECT
{
Top = 0,
Left = 0,
Bottom = 1,
Right = 80
};
CHAR_INFO[,] chiBuffer = new CHAR_INFO[2, 80]; // [2][80];10 lines, with 50 characters
COORD coordBufSize = new COORD
{
X = 80,
Y = 2
};
COORD coordBufCoord = new COORD
{
X = 0,
Y = 0
};
bool fSuccess;
int i = 0;
int j = 0;
string chartostring = "start";
string previousstring = "";
short g = a;
short h = (short)(g + 1);
srctReadRect.Top = g;
srctReadRect.Bottom = h;
int count = 0;
//System.Console.WriteLine(g + "." + h);
while (count < 1)//Hunting:if it find 1 empty rows with text then it will stop reading
{
previousstring = chartostring;
srctReadRect.Top = g;
srctReadRect.Bottom = h;
fSuccess = ReadConsoleOutput(ptr, chiBuffer, coordBufSize, coordBufCoord, ref srctReadRect);
i = 0;
j = 0;
chartostring = "";
while (j < coordBufSize.Y)
{
while (i < coordBufSize.X)
{
if (chiBuffer[j, i].UnicodeChar != 0 && chiBuffer[j, i].UnicodeChar != 32)
chartostring += chiBuffer[j, i].UnicodeChar;
i++;
}
i = 0;
j++;
}
if (chartostring.Length == 0)//The character length is zero, reverse the top of the source rect
{
count++;
}
else
{
count = 0;
}
g += 1;
h += 1;
}
return previousstring;
}
private void ReallyRender()
{
var text = ParseInput();
int statusLineCount = GetStatusLineCount();
int j = _initialX + (_bufferWidth * Options.ExtraPromptLineCount);
var backgroundColor = _initialBackgroundColor;
var foregroundColor = _initialForegroundColor;
bool afterLastToken = false;
int totalBytes = j;
int bufferWidth = _console.BufferWidth;
var tokenStack = new Stack<SavedTokenState>();
tokenStack.Push(new SavedTokenState
{
Tokens = _tokens,
Index = 0,
BackgroundColor = _initialBackgroundColor,
ForegroundColor = _initialForegroundColor
});
int bufferLineCount;
try
{
_console.StartRender();
bufferLineCount = ConvertOffsetToCoordinates(text.Length).Y - _initialY + 1 + statusLineCount;
if (_consoleBuffer.Length != bufferLineCount * bufferWidth)
{
var newBuffer = new CHAR_INFO[bufferLineCount * bufferWidth];
Array.Copy(_consoleBuffer, newBuffer, _initialX + (Options.ExtraPromptLineCount * _bufferWidth));
if (_consoleBuffer.Length > bufferLineCount * bufferWidth)
{
int consoleBufferOffset = ConvertOffsetToConsoleBufferOffset(text.Length, _initialX + (Options.ExtraPromptLineCount * _bufferWidth));
// Need to erase the extra lines that we won't draw again
for (int i = consoleBufferOffset; i < _consoleBuffer.Length; i++)
{
_consoleBuffer[i] = _space;
}
_console.WriteBufferLines(_consoleBuffer, ref _initialY);
}
_consoleBuffer = newBuffer;
}
for (int i = 0; i < text.Length; i++)
{
totalBytes = totalBytes % bufferWidth;
if (!afterLastToken)
{
// Figure out the color of the character - if it's in a token,
// use the tokens color otherwise use the initial color.
var state = tokenStack.Peek();
var token = state.Tokens[state.Index];
if (i == token.Extent.EndOffset)
{
if (token == state.Tokens[state.Tokens.Length - 1])
{
tokenStack.Pop();
if (tokenStack.Count == 0)
{
afterLastToken = true;
token = null;
foregroundColor = _initialForegroundColor;
backgroundColor = _initialBackgroundColor;
}
else
{
state = tokenStack.Peek();
}
}
if (!afterLastToken)
{
foregroundColor = state.ForegroundColor;
backgroundColor = state.BackgroundColor;
token = state.Tokens[++state.Index];
}
}
if (!afterLastToken && i == token.Extent.StartOffset)
{
GetTokenColors(token, out foregroundColor, out backgroundColor);
var stringToken = token as StringExpandableToken;
if (stringToken != null)
{
// We might have nested tokens.
if (stringToken.NestedTokens != null && stringToken.NestedTokens.Any())
{
var tokens = new Token[stringToken.NestedTokens.Count + 1];
stringToken.NestedTokens.CopyTo(tokens, 0);
// NestedTokens doesn't have an "EOS" token, so we use
// the string literal token for that purpose.
tokens[tokens.Length - 1] = stringToken;
tokenStack.Push(new SavedTokenState
{
Tokens = tokens,
Index = 0,
BackgroundColor = backgroundColor,
ForegroundColor = foregroundColor
});
if (i == tokens[0].Extent.StartOffset)
{
GetTokenColors(tokens[0], out foregroundColor, out backgroundColor);
}
}
}
}
}
var charToRender = text[i];
if (charToRender == '\n')
{
while ((j % bufferWidth) != 0)
{
_consoleBuffer[j++] = _space;
}
for (int k = 0; k < Options.ContinuationPrompt.Length; k++, j++)
{
_consoleBuffer[j].UnicodeChar = Options.ContinuationPrompt[k];
_consoleBuffer[j].ForegroundColor = Options.ContinuationPromptForegroundColor;
_consoleBuffer[j].BackgroundColor = Options.ContinuationPromptBackgroundColor;
}
}
else
{
int size = LengthInBufferCells(charToRender);
totalBytes += size;
//if there is no enough space for the character at the edge, fill in spaces at the end and
//put the character to next line.
int filling = totalBytes > bufferWidth ? (totalBytes - bufferWidth) % size : 0;
for (int f = 0; f < filling; f++)
{
_consoleBuffer[j++] = _space;
totalBytes++;
}
if (char.IsControl(charToRender))
{
_consoleBuffer[j].UnicodeChar = '^';
MaybeEmphasize(ref _consoleBuffer[j++], i, foregroundColor, backgroundColor);
_consoleBuffer[j].UnicodeChar = (char)('@' + charToRender);
MaybeEmphasize(ref _consoleBuffer[j++], i, foregroundColor, backgroundColor);
}
else if (size > 1)
{
_consoleBuffer[j].UnicodeChar = charToRender;
_consoleBuffer[j].Attributes = (ushort)(_consoleBuffer[j].Attributes |
(uint)CHAR_INFO_Attributes.COMMON_LVB_LEADING_BYTE);
MaybeEmphasize(ref _consoleBuffer[j++], i, foregroundColor, backgroundColor);
_consoleBuffer[j].UnicodeChar = charToRender;
_consoleBuffer[j].Attributes = (ushort)(_consoleBuffer[j].Attributes |
(uint)CHAR_INFO_Attributes.COMMON_LVB_TRAILING_BYTE);
MaybeEmphasize(ref _consoleBuffer[j++], i, foregroundColor, backgroundColor);
}
else
{
_consoleBuffer[j].UnicodeChar = charToRender;
MaybeEmphasize(ref _consoleBuffer[j++], i, foregroundColor, backgroundColor);
}
}
}
}
finally
{
_console.EndRender();
}
for (; j < (_consoleBuffer.Length - (statusLineCount * _bufferWidth)); j++)
{
_consoleBuffer[j] = _space;
}
if (_statusLinePrompt != null)
{
foregroundColor = _statusIsErrorMessage ? Options.ErrorForegroundColor : _console.ForegroundColor;
backgroundColor = _statusIsErrorMessage ? Options.ErrorBackgroundColor : _console.BackgroundColor;
for (int i = 0; i < _statusLinePrompt.Length; i++, j++)
{
_consoleBuffer[j].UnicodeChar = _statusLinePrompt[i];
_consoleBuffer[j].ForegroundColor = foregroundColor;
_consoleBuffer[j].BackgroundColor = backgroundColor;
}
for (int i = 0; i < _statusBuffer.Length; i++, j++)
{
_consoleBuffer[j].UnicodeChar = _statusBuffer[i];
_consoleBuffer[j].ForegroundColor = foregroundColor;
_consoleBuffer[j].BackgroundColor = backgroundColor;
}
for (; j < _consoleBuffer.Length; j++)
{
_consoleBuffer[j] = _space;
}
}
bool rendered = false;
if (_parseErrors.Length > 0)
{
int promptChar = _initialX - 1 + (_bufferWidth * Options.ExtraPromptLineCount);
while (promptChar >= 0)
{
var c = (char)_consoleBuffer[promptChar].UnicodeChar;
if (char.IsWhiteSpace(c))
{
promptChar -= 1;
continue;
}
ConsoleColor prevColor = _consoleBuffer[promptChar].ForegroundColor;
_consoleBuffer[promptChar].ForegroundColor = ConsoleColor.Red;
_console.WriteBufferLines(_consoleBuffer, ref _initialY);
rendered = true;
_consoleBuffer[promptChar].ForegroundColor = prevColor;
break;
}
}
if (!rendered)
{
_console.WriteBufferLines(_consoleBuffer, ref _initialY);
}
PlaceCursor();
if ((_initialY + bufferLineCount) > (_console.WindowTop + _console.WindowHeight))
{
_console.WindowTop = _initialY + bufferLineCount - _console.WindowHeight;
}
_lastRenderTime.Restart();
}
private void MaybeEmphasize(ref CHAR_INFO charInfo, int i, ConsoleColor foregroundColor, ConsoleColor backgroundColor)
{
if (i >= _emphasisStart && i < (_emphasisStart + _emphasisLength))
{
backgroundColor = _options.EmphasisBackgroundColor;
foregroundColor = _options.EmphasisForegroundColor;
}
else if (_visualSelectionCommandCount > 0 && InRegion(i))
{
// We can't quite emulate real console selection because it inverts
// based on actual screen colors, our pallete is limited. The choice
// to invert only the lower 3 bits to change the color is somewhat
// but looks best with the 2 default color schemes - starting PowerShell
// from it's shortcut or from a cmd shortcut.
foregroundColor = (ConsoleColor)((int)foregroundColor ^ 7);
backgroundColor = (ConsoleColor)((int)backgroundColor ^ 7);
}
charInfo.ForegroundColor = foregroundColor;
charInfo.BackgroundColor = backgroundColor;
}
private static void WriteBlankLines(int count, int top)
{
var console = _singleton._console;
var blanks = new CHAR_INFO[count * console.BufferWidth];
for (int i = 0; i < blanks.Length; i++)
{
blanks[i].BackgroundColor = console.BackgroundColor;
blanks[i].ForegroundColor = console.ForegroundColor;
blanks[i].UnicodeChar = ' ';
}
console.WriteBufferLines(blanks, ref top);
}
public CHAR_INFO[] ReadBufferLines(int top, int count)
{
var toCopy = BufferWidth * count;
var result = new CHAR_INFO[toCopy];
Array.Copy(buffer, top * BufferWidth, result, 0, toCopy);
return result;
}
public static extern bool WriteConsoleOutput(
IntPtr hConsoleOutput,
CHAR_INFO[] lpBuffer,
COORD dwBufferSize,
COORD dwBufferCoord,
ref SMALL_RECT lpWriteRegion
);
private CHAR_INFO[] CreateCharInfoBuffer(int lines, params object[] items)
{
var result = new List<CHAR_INFO>();
var fg = _console.ForegroundColor;
var bg = _console.BackgroundColor;
foreach (var i in items)
{
var item = i;
if (item is char)
{
result.Add(new CHAR_INFO((char)item, fg, bg));
continue;
}
if (item is InvertedToken)
{
fg = (ConsoleColor)((int)fg ^ 7);
bg = (ConsoleColor)((int)bg ^ 7);
continue;
}
if (item is NextLineToken)
{
item = new string(' ', _console.BufferWidth - (result.Count % _console.BufferWidth));
fg = _console.ForegroundColor;
bg = _console.BackgroundColor;
// Fallthrough to string case.
}
var str = item as string;
if (str != null)
{
result.AddRange(str.Select(c => new CHAR_INFO(c, fg, bg)));
continue;
}
if (item is TokenClassification)
{
fg = ForegroundColors[(int)(TokenClassification)item];
bg = BackgroundColors[(int)(TokenClassification)item];
continue;
}
var tuple = item as Tuple<ConsoleColor, ConsoleColor>;
if (tuple != null)
{
fg = tuple.Item1;
bg = tuple.Item2;
continue;
}
throw new ArgumentException("Unexpected type");
}
var extraSpacesNeeded = (lines * _console.BufferWidth) - result.Count;
if (extraSpacesNeeded > 0)
{
var space = new CHAR_INFO(' ', _console.ForegroundColor, _console.BackgroundColor);
result.AddRange(Enumerable.Repeat(space, extraSpacesNeeded));
}
return result.ToArray();
}
static void Box(List <string> list)
{
int internalBoxWidth = Math.Min(Console.BufferWidth - 2, list.Max(e => e.Length));
int boxWidth = internalBoxWidth + 2;
int internalBoxHeight = list.Count;
int boxHeight = internalBoxHeight + 2;
var buffer = new CHAR_INFO[boxWidth * boxHeight];
buffer[0].UnicodeChar = '+';
buffer[boxWidth - 1].UnicodeChar = '+';
for (int i = 1; i < boxWidth - 1; i++)
{
buffer[i].UnicodeChar = '-';
}
for (int i = 0; i < list.Count; i++)
{
int rowStart = (i + 1) * boxWidth;
buffer[rowStart++].UnicodeChar = '|';
buffer[rowStart + internalBoxWidth].UnicodeChar = '|';
string s = list[i];
int j;
for (j = 0; j < s.Length; j++)
{
buffer[rowStart + j].UnicodeChar = s[j];
}
for (; j < internalBoxWidth; j++)
{
buffer[rowStart + j].UnicodeChar = ' ';
}
}
int lastRowStart = (boxHeight - 1) * boxWidth;
buffer[lastRowStart].UnicodeChar = '+';
for (int i = 1; i < boxWidth - 1; i++)
{
buffer[i + lastRowStart].UnicodeChar = '-';
}
buffer[lastRowStart + boxWidth - 1].UnicodeChar = '+';
for (int i = 0; i < buffer.Length; i++)
{
buffer[i].Attributes = (ushort)ConsoleColor.Blue |
((ushort)(ConsoleColor.DarkGreen) << 4);
if (i % 2 != 0)
{
buffer[i].Attributes |= 0xfff0;
}
}
var handle = NativeMethods.GetStdHandle((uint)StandardHandleId.Output);
var bufferSize = new COORD {
X = (short)boxWidth, Y = (short)boxHeight
};
var bufferCoord = new COORD {
X = 0, Y = 0
};
var writeRegion = new SMALL_RECT {
Top = 1,
Left = 1,
Bottom = (short)(1 + boxHeight),
Right = (short)(1 + boxWidth)
};
Console.WriteLine("some random stuff");
Console.WriteLine("and more some random stuff");
Console.WriteLine("lorem ipsum blah blah");
Console.ReadKey();
var saveBuffer = new CHAR_INFO[buffer.Length];
NativeMethods.ReadConsoleOutput(handle, saveBuffer,
bufferSize, bufferCoord, ref writeRegion);
unsafe
{
fixed(CHAR_INFO *p = &buffer[0])
fixed(CHAR_INFO * sp = &saveBuffer[0])
{
NativeMethods.WriteConsoleOutput(handle, buffer,
bufferSize, bufferCoord, ref writeRegion);
Console.ReadKey();
NativeMethods.WriteConsoleOutput(handle, saveBuffer,
bufferSize, bufferCoord, ref writeRegion);
}
}
Console.ReadKey();
}
public void WriteBufferLines(CHAR_INFO[] bufferToWrite, ref int top, bool ensureBottomLineVisible)
{
var startPos = top * BufferWidth;
for (int i = 0; i < bufferToWrite.Length; i++)
{
buffer[startPos + i] = bufferToWrite[i];
}
}
private static void InvertSelectedCompletion(CHAR_INFO[] buffer, int selectedItem, int menuColumnWidth, int menuRows)
{
var selectedX = selectedItem / menuRows;
var selectedY = selectedItem - (selectedX * menuRows);
var start = selectedY * Console.BufferWidth + selectedX * menuColumnWidth;
for (int i = 0; i < menuColumnWidth; i++)
{
int j = i + start;
buffer[j].ForegroundColor = (ConsoleColor)((int)buffer[j].ForegroundColor ^ 7);
buffer[j].BackgroundColor = (ConsoleColor)((int)buffer[j].BackgroundColor ^ 7);
}
}
void ClearBuffer()
{
for (int i = 0; i < buffer.Length; i++)
{
buffer[i] = new CHAR_INFO(' ', ForegroundColor, BackgroundColor);
}
}
public void Assign(CHAR_INFO charInfo)
{
canvas.buffer[y, x] = charInfo;
}
internal static unsafe extern bool ReadConsoleOutput(IntPtr hConsoleOutput, CHAR_INFO* pBuffer, COORD bufferSize, COORD bufferCoord, ref SMALL_RECT readRegion);
public void WriteBufferLines(CHAR_INFO[] bufferToWrite, ref int top)
{
WriteBufferLines(bufferToWrite, ref top, true);
}
internal static unsafe extern bool WriteConsoleOutput(IntPtr hConsoleOutput, CHAR_INFO* buffer, COORD bufferSize, COORD bufferCoord, ref SMALL_RECT writeRegion);
/// <summary>
/// Write a line of text with specific foreground/background colors to the console.
/// </summary>
/// <param name="x">The 0-based destination x coordinate.</param>
/// <param name="y">The 0-based destination y coordinate.</param>
/// <param name="foreground">Foreground color</param>
/// <param name="background">Background color</param>
/// <param name="s">The string to write.</param>
/// <returns>True if the write was successful, false if there was a failure.</returns>
public static bool WriteColor(int x, int y, ConsoleColor foreground, ConsoleColor background, string s)
{
// the attribute is the combination of the foreground color [0x00, 0x0F] and background color [0x00, 0xF0]
ushort attribute = (ushort)((int)foreground | (((int)background)<<4));
// Build a CHAR_INFO array containing the characters we want to write and the attributes
CHAR_INFO[] info = new CHAR_INFO[s.Length];
char[] array = s.ToCharArray();
for(int i = 0; i < s.Length; i++)
{
info[i].UnicodeChar = (ushort)array[i];
info[i].Attributes = attribute;
}
// Writing the length of the string, one character tall.
COORD myBufferSize;
myBufferSize.X = (short)s.Length;
myBufferSize.Y = (short)1;
// Starting at 0,0 in the source CHAR_INFO array
COORD myBufferPosition;
myBufferPosition.X = 0;
myBufferPosition.Y = 0;
// from x..(x+s.Length), one line for y direction.
SMALL_RECT mySmallRect;
mySmallRect.Left = (short)x;
mySmallRect.Right = (short)(x + s.Length);
mySmallRect.Top = (short)y;
mySmallRect.Bottom = (short)y;
// Write.
return WriteConsoleOutput(GetStdHandle(STD_OUTPUT_HANDLE), info, myBufferSize, myBufferPosition, ref mySmallRect);
}
/// <summary>
/// Moves a block of data in a screen buffer. The effects of the move can be limited by specifying a clipping rectangle, so the contents of the console screen buffer outside the clipping rectangle are unchanged.
/// </summary>
/// <param name="hConsoleOutput">A handle to the console input buffer. The handle must have the <see cref="BUFFER_ACCESS_MODE.GENERIC_READ"/> access right.</param>
/// <param name="lpScrollRectangle">A pointer to a <see cref="SMALL_RECT"/> structure whose members specify the upper-left and lower-right coordinates of the console screen buffer rectangle to be moved.</param>
/// <param name="lpClipRectangle">A pointer to a <see cref="SMALL_RECT"/> structure whose members specify the upper-left and lower-right coordinates of the console screen buffer rectangle that is affected by the scrolling. This pointer can be <see langword="null"/>.</param>
/// <param name="dwDestinationOrigin">A <see cref="COORD"/> structure that specifies the upper-left corner of the new location of the <paramref name="lpScrollRectangle"/> contents, in characters.</param>
/// <param name="lpFill">A pointer to a <see cref="CHAR_INFO"/> structure that specifies the character and color attributes to be used in filling the cells within the intersection of <paramref name="lpScrollRectangle"/> and <paramref name="lpClipRectangle"/> that were left empty as a result of the move.</param>
/// <returns>If the function succeeds, returns TRUE, otherwise, retun FALSE.</returns>
[DllImport("kernel32.dll", SetLastError = true)] public static extern bool ScrollConsoleScreenBuffer([In] IntPtr hConsoleOutput, [In] ref SMALL_RECT lpScrollRectangle, [In, Optional] IntPtr lpClipRectangle, [In] COORD dwDestinationOrigin, [In] ref CHAR_INFO lpFill);
/// <summary>
/// Оверлоад для оптимизированного наложения в случае, когда известно, что в дочернем
/// контроле поменялась лишь часть, идентифицируемая параметром affectedRect.
/// Будет обработана только эта часть дочернего контрола, и количество операций уменьшится.
/// </summary>
/// <param name="childBuffer"></param>
/// <param name="actualOffset"></param>
/// <param name="childRenderSize"></param>
/// <param name="renderSlotRect"></param>
/// <param name="layoutClip"></param>
/// <param name="affectedRect">Прямоугольник в дочернем контроле, который был изменен.</param>
public void ApplyChild(RenderingBuffer childBuffer, Vector actualOffset,
Size childRenderSize, Rect renderSlotRect,
Rect layoutClip, Rect?affectedRect)
{
// Считаем finalRect - прямоугольник относительно parent, который нужно закрасить
Rect finalRect = layoutClip;
if (affectedRect != null)
{
finalRect.Intersect(affectedRect.Value);
}
// Если child.RenderSlotRect больше child.RenderSize, а rendering buffer
// дочернего контрола больше его RenderSize (такое бывает после уменьшения
// размеров контрола - т.к. буфер может только увеличиваться, но не уменьшаться) -
// то нам нужно либо передать в метод ApplyChild и child.RenderSize, либо
// выполнить пересечение заранее
finalRect.Intersect(new Rect(new Point(0, 0), childRenderSize));
// Because cannot call Offset() method of empty rect
if (finalRect.IsEmpty)
{
return;
}
finalRect.Offset(actualOffset);
finalRect.Intersect(renderSlotRect);
// Нужно также учесть размеры буфера текущего контрола
finalRect.Intersect(new Rect(new Point(0, 0), new Size(this.width, this.height)));
for (int x = finalRect.Left; x < finalRect.Right; x++)
{
int parentX = x;
int childX = parentX - actualOffset.x;
for (int y = finalRect.Top; y < finalRect.Bottom; y++)
{
int parentY = y;
int childY = parentY - actualOffset.y;
CHAR_INFO charInfo = childBuffer.buffer[childX, childY];
int opacity = childBuffer.opacityMatrix[childX, childY];
// Для полностью прозрачных пикселей родительского буфера - присваиваем и значение
// пикселя, и значение opacity, дальше дело за следующим родителем
if (this.opacityMatrix[parentX, parentY] == 2 || this.opacityMatrix[parentX, parentY] == 6)
{
this.buffer[parentX, parentY] = charInfo;
this.opacityMatrix[parentX, parentY] = opacity;
}
else
{
// В остальных случаях opacity родительского буфера остаётся, а
// сам пиксель зависит от opacity дочернего элемента
if (opacity == 0 || opacity == 4)
{
this.buffer[parentX, parentY] = charInfo;
}
else if (opacity == 1 || opacity == 5)
{
charInfo.Attributes = Colors.Blend(Color.DarkGray, Color.Black);
charInfo.UnicodeChar = buffer[parentX, parentY].UnicodeChar;
buffer[parentX, parentY] = charInfo;
}
else if (opacity == 3 || opacity == 7)
{
// берем фоновые атрибуты символа из родительского буфера
Attr parentAttr = buffer[parentX, parentY].Attributes;
if ((parentAttr & Attr.BACKGROUND_BLUE) == Attr.BACKGROUND_BLUE)
{
charInfo.Attributes |= Attr.BACKGROUND_BLUE;
}
else
{
charInfo.Attributes &= ~Attr.BACKGROUND_BLUE;
}
if ((parentAttr & Attr.BACKGROUND_GREEN) == Attr.BACKGROUND_GREEN)
{
charInfo.Attributes |= Attr.BACKGROUND_GREEN;
}
else
{
charInfo.Attributes &= ~Attr.BACKGROUND_GREEN;
}
if ((parentAttr & Attr.BACKGROUND_RED) == Attr.BACKGROUND_RED)
{
charInfo.Attributes |= Attr.BACKGROUND_RED;
}
else
{
charInfo.Attributes &= ~Attr.BACKGROUND_RED;
}
if ((parentAttr & Attr.BACKGROUND_INTENSITY) == Attr.BACKGROUND_INTENSITY)
{
charInfo.Attributes |= Attr.BACKGROUND_INTENSITY;
}
else
{
charInfo.Attributes &= ~Attr.BACKGROUND_INTENSITY;
}
buffer[parentX, parentY] = charInfo;
}
}
}
}
}
