/// <summary>
/// Initializes a new instance of the <see cref="MenuDisplay{T}"/> class.
/// </summary>
/// <param name="point">The point where the menu should be displayed.</param>
/// <param name="displayedLines">
/// The maximum number of console lines the menu display should use.
/// The menu can display more options than this value.
/// Values greater than the height of the console can result in odd effects.</param>
public MenuDisplay(IConsole console, ConsolePoint point, int displayedLines)
{
_console = console ?? throw new ArgumentNullException(nameof(console));
_windowOrigin = _console.GetWindowPosition();
_origin = point;
_options = new MenuOptionCollection <TOption>();
_options.CollectionChanged += OptionsCollectionChanged;
_displayed = new List <ConsoleString>();
for (int i = 0; i < displayedLines; i++)
{
_displayed.Add("");
}
_displayOffset = 0;
_index = -1;
_prompt = "> ";
_noPrompt = " ";
_prefixTop = new PrefixKeyCollection();
_prefixBottom = new PrefixKeyCollection();
_hasPrefix = false;
_prefixTop.PrefixSetChanged += UpdateAllOptions;
_prefixBottom.PrefixSetChanged += UpdateAllOptions;
}
private static void ApplyCleanup(ConsoleString prompt, IConsole console, ConsolePoint start, ConsoleReader reader, ReadlineCleanup cleanup)
{
switch (cleanup)
{
case ReadlineCleanup.None:
console.WriteLine();
break;
case ReadlineCleanup.RemovePrompt:
var text = reader.Text;
reader.Text = string.Empty;
console.SetCursorPosition(start);
console.Write(new string(' ', prompt.Length));
console.SetCursorPosition(start);
console.WriteLine(text);
break;
case ReadlineCleanup.RemoveAll:
reader.Text = string.Empty;
console.SetCursorPosition(start);
console.Write(new string(' ', prompt.Length));
console.SetCursorPosition(start);
break;
}
}
public ConsoleString(ConsolePoint position, IEnumerable <ConsoleSegment> segments)
{
Position = position;
Segments = segments.ToImmutableList();
_outputString = new CommandLineParsing.Output.ConsoleString(Segments.Select(Map));
}
public void SetWindowPosition(int left, int top)
{
if (left + WindowWidth > BufferWidth)
{
throw new ArgumentOutOfRangeException(nameof(left));
}
if (top + WindowHeight > BufferHeight)
{
throw new ArgumentOutOfRangeException(nameof(top));
}
_windowPosition = new ConsolePoint(left, top);
}
public TestingConsole()
{
_bufferSize = new ConsoleSize(80, 300);
_cursorPosition = new ConsolePoint(0, 0);
_windowSize = new ConsoleSize(_bufferSize.Width, 20);
_windowPosition = new ConsolePoint(0, 0);
CursorVisible = true;
ResetColor();
_content = new List <char[]>();
_foreground = new List <ConsoleColor[]>();
_background = new List <ConsoleColor[]>();
_input = new InputCollection();
}
public void SetCursorPosition(int left, int top)
{
_cursorPosition = new ConsolePoint(left, top);
if (top < WindowTop)
{
WindowTop = top;
}
else if (top >= WindowTop + WindowHeight)
{
WindowTop = top - WindowHeight + 1;
}
if (left < WindowLeft)
{
WindowLeft = left;
}
else if (left >= WindowLeft + WindowWidth)
{
WindowLeft = left - WindowWidth + 1;
}
}
