public static void Draw(this Symbol symbol, ITerminalSink sink)
{
if (symbol is null)
{
throw new ArgumentNullException(nameof(symbol));
}
if (sink is null)
{
throw new ArgumentNullException(nameof(sink));
}
symbol.Draw(sink, new Rectangle(symbol.Region.TopLeft, symbol.Region.BottomRight));
}
public static bool Write(this ITerminalSink sink, Catena catena, Rectangle destination)
{
CharInfo[,] result = new CharInfo[destination.Height, destination.Width];
CharInfo[] buffer = catena.ToArray();
int index = 0;
for (int y = 0; y < destination.Height; y++)
{
for (int x = 0; x < destination.Width && index < buffer.Length; x++, index++)
{
result[y, x] = buffer[index];
}
}
return(sink.Write(result, new Coord(destination.Left, destination.Top)));
}
/// <summary>
/// Gets the <see cref="Coord"/> that the <see cref="ITerminalSink.CursorPosition"/> of <paramref name="sink"/>
/// would need to be set to in order to reverse the cursor's movement by one position.
/// </summary>
/// <param name="sink">
/// The sink to retrieve the cursor position of.
/// </param>
/// <param name="width">
/// The width of the terminal.
/// </param>
/// <returns>
/// The <see cref="Coord"/> that the <see cref="ITerminalSink.CursorPosition"/> of <paramref name="sink"/>
/// would need to be set to in order to reverse the cursor's movement by one position.
/// </returns>
public static Coord GetReverseCursorPosition(this ITerminalSink sink, ushort width)
{
if (sink is null)
{
throw new ArgumentNullException(nameof(sink));
}
Coord currentPosition = sink.CursorPosition;
if (currentPosition.X - 1 < 0)
{
return(new Coord((short)(width - 1), (short)(currentPosition.Y - 1)));
}
else
{
return(new Coord((short)(currentPosition.X - 1), currentPosition.Y));
}
}
public override void Draw(ITerminalSink sink, Rectangle window)
{
if (!this.Region.Overlaps(window))
{
return;
}
Coord destination = new Coord(window.Left, window.Top);
window -= this.Region.TopLeft;
sink.Write(
this.backingFill.GetFullSize(),
destination,
new Rectangle(
window.Left,
window.Top,
(short)(window.Right + 1),
(short)(window.Bottom + 1)));
}
/// <summary>
/// Writes the specified <see cref="Catena"/> <paramref name="catena"/> starting at the coordinate specified by
/// the <see cref="Coord"/> <paramref name="destination"/>, if possible. If the write operation completed,
/// returns <see langword="true"/>; otherwise, returns <see langword="false"/>. The most common reason for an
/// incomplete write operation is if the specified <paramref name="catena"/> extends past the writeable area of
/// this sink.
/// </summary>
/// <param name="sink">
/// The <see cref="ITerminalSink"/> to write to.
/// </param>
/// <param name="catena">
/// The <see cref="Catena"/> to write.
/// </param>
/// <param name="destination">
/// The destination to start writing <paramref name="catena"/> from.
/// </param>
/// <returns>
/// <see langword="true"/> if the write operation completed; otherwise, <see langword="false"/>. The most
/// common reason for an incomplete write operation is if the specified <paramref name="catena"/> extends past
/// the writeable area of this sink.
/// </returns>
public static bool Write(this ITerminalSink sink, Catena catena, Coord destination)
{
return(sink.Write(catena.ToArray(), destination));
}
/// <summary>
/// Writes the specified <see cref="Catena"/> <paramref name="catena"/> and advances the cursor to the start of
/// the next line.
/// </summary>
/// <param name="sink">
/// The <see cref="ITerminalSink"/> to write to.
/// </param>
/// <param name="catena">
/// The <see cref="Catena"/> to write.
/// </param>
/// <returns>
/// <see langword="true"/> if the write operation completed; otherwise, <see langword="false"/>. The most
/// common reason for an incomplete write operation is if the specified <paramref name="catena"/> extends past
/// the writeable area of this sink.
/// </returns>
public static bool WriteLine(this ITerminalSink sink, Catena catena)
{
return(sink.WriteLine(catena.ToArray()));
}
public abstract void Draw(ITerminalSink sink, Rectangle window);
