/// <summary>
/// This method displays the menu on the console application.
/// </summary>
/// <param name="state">The optional state.</param>
/// <param name="pageLength">This is the number of menu items per page. The default is 9.</param>
/// <param name="shortcut">This property allows a supported shortcut to the executed automatically</param>
/// <param name="contextInfo">This method allows the menu context to be inherited by a child menu. If ContextInfoInherit is set to false, this is ignored.</param>
public virtual void Show(object state = null, int pageLength = 9, string shortcut = null, ConsoleInfoContext contextInfo = null)
{
if (contextInfo != null && ContextInfoInherit)
{
ContextInfo = contextInfo;
}
Context.State = state;
Context.PageCurrent = 1;
Context.PageSet(pageLength);
if (Context.ConsoleTitle != null)
{
System.Console.Title = Context.ConsoleTitle;
}
//Execute any registered shortcut
if (shortcut != null)
{
ShortcutInvoke(Context, shortcut);
}
Display();
OnClose?.Invoke(this, null);
}
/// <summary>
/// This method displays the info messages on the console.
/// </summary>
public static void DisplaySummary(this ConsoleInfoContext context, int count = 3)
{
if (context.InfoMessages.Count > 0)
{
count = DisplaySummaryMessages(context, count);
}
while (count-- > 0)
{
System.Console.WriteLine();
}
}
/// <summary>
/// This is the main constructor for the menu.
/// </summary>
/// <param name="title">The page title.</param>
/// <param name="options">The child options for the menu.</param>
public ConsoleMenu(
string title
, params ConsoleOption[] options
)
{
Context = new ConsoleMenuContext(options);
ContextInfo = new ConsoleInfoContext();
Context.Title = title;
Context.ConsoleTitle = title;
Context.Subtitle = "Please select from the following options";
Context.EscapeText = "Press escape to exit";
Context.EscapeWrapper = true;
Context.Indent1 = 3;
Context.Indent2 = 6;
CustomInfo = new Dictionary <string, ConsoleInfoContext>();
}
private static int DisplaySummaryMessages(ConsoleInfoContext context, int count)
{
int current = 0;
foreach (var info in context.GetCurrent(count))
{
ConsoleColor infoColor;
switch (info.Type)
{
case LoggingLevel.Error:
case LoggingLevel.Fatal:
infoColor = ConsoleColor.Red;
break;
case LoggingLevel.Warning:
infoColor = ConsoleColor.Yellow;
break;
default:
infoColor = ConsoleColor.Gray;
break;
}
current++;
bool showUp = current == 1 && info.LoggingId < (context.Count - 1);
bool showDown = current == count && info.LoggingId > 0;
ConsoleHelper.HeaderBar(
$"{info.LoggingId+1}. {info.Message}"
, character: ' '
, titleColour: infoColor
, startChar: showUp ? (char)8593 : (char?)null
, endChar: showDown ? (char)8595 : (char?)null
);
}
return(count - current);
}
