/// <summary>
///
/// </summary>
/// <param name="title">Title of the menu</param>
/// <param name="menuItemList">List of Menu Items</param>
/// <param name="x">X Coordinate of the Menu</param>
/// <param name="y">Y Coordinate of the Menu</param>
/// <param name="rowMax">Maximum amount of Menu Items Displayed</param>
/// <param name="colorConfig"></param>
/// <returns>Name of the chosen Menu Item</returns>
public static string Show(string title, string[] menuItemList, int x, int y, int rowMax, ColorConfiguration colorConfig)
{
List <Error> errorList = ValidateParameters(title, menuItemList, x, y, rowMax, colorConfig);
int menuMaxLength = menuItemList.Aggregate((max, cur) => max.Length > cur.Length ? max : cur).Length;
if (rowMax > menuItemList.Length)
{
rowMax = menuItemList.Length - 1;
}
else
{
rowMax -= 1;
}
int currentSelection = 0;
ConsoleKey key;
Console.CursorVisible = false;
Console.Clear();
DisplayTitle(x, y, title, colorConfig.title_fgColor, colorConfig.title_bgColor);
int menuY = y + 2;
int menuX = x;
for (int i = 0; i <= rowMax; i++)
{
DisplayMenuItem(menuX, menuY + i, menuItemList[i], colorConfig.menu_fgColor, colorConfig.menu_bgColor, menuMaxLength);
}
DisplayMenuItem(menuX, menuY, menuItemList[0], colorConfig.selected_fgColor, colorConfig.selected_bgColor, menuMaxLength);
do
{
key = Console.ReadKey(true).Key;
switch (key)
{
case ConsoleKey.UpArrow:
if (currentSelection != 0)
{
currentSelection--;
}
break;
case ConsoleKey.DownArrow:
if (currentSelection < menuItemList.Length - 1)
{
currentSelection += 1;
}
break;
}
if (currentSelection < rowMax)
{
for (int i = 0; i <= rowMax; i++)
{
if (i == currentSelection)
{
DisplayMenuItem(menuX, menuY + i, menuItemList[i], colorConfig.selected_fgColor, colorConfig.selected_bgColor, menuMaxLength);
}
else
{
DisplayMenuItem(menuX, menuY + i, menuItemList[i], colorConfig.menu_fgColor, colorConfig.menu_bgColor, menuMaxLength);
}
}
}
else
{
for (int i = 0; i < rowMax; i++)
{
DisplayMenuItem(menuX, menuY + i, menuItemList[currentSelection - rowMax + i], colorConfig.menu_fgColor, colorConfig.menu_bgColor, menuMaxLength);
}
DisplayMenuItem(menuX, menuY + rowMax, menuItemList[currentSelection], colorConfig.selected_fgColor, colorConfig.selected_bgColor, menuMaxLength);
}
} while (key != ConsoleKey.Enter);
Console.CursorVisible = true;
return(menuItemList[currentSelection]);
}
private static List <Error> ValidateParameters(string title, string[] menuItemList, int x, int y, int rowMax, ColorConfiguration colorConfig)
{
List <Error> errorList = new List <Error>();
if (x >= Console.WindowWidth || x < 0)
{
errorList.Add(new Error()
{
Code = 1, Title = "Out of Range Error", Description = "Parameter x is out of visible range!"
});
}
if (y >= Console.WindowHeight || y < 0)
{
errorList.Add(new Error()
{
Code = 1, Title = "Out of Range Error", Description = "Parameter y is out of visible range!"
});
}
if (menuItemList.Length <= 1)
{
errorList.Add(new Error()
{
Code = 2, Title = "Not enough Menu Items", Description = "You need to provide more than 1 Menu Item!"
});
}
if (rowMax < 2 || rowMax >= Console.WindowHeight)
{
errorList.Add(new Error()
{
Code = 1, Title = "Out of Range Error", Description = "Parameter rowMax is out of range!"
});
}
return(errorList);
}