public static void PrintScrollableMenu <T>(ScrollableMenu <T> menu)
{
if (menu.GetTotalItemNumber() < menu.GetScopeSize())
{
PrintMenu(menu);
}
else
{
int currentRow = menu.GetPositionY();
int positionX = menu.GetPositionX();
int dotPosition = menu.GetPositionX() + (menu.GetSizeX() / 2 - 1);
switch (menu.GetAlignment())
{
case Alignment.Left:
break;
case Alignment.Right:
positionX = positionX + menu.GetSizeX() - 1;
break;
default:
positionX = positionX + (menu.GetSizeX() / 2 - 1);
break;
}
List <MenuItem <T> > menuitems = menu.GetMenuItemsInScope();
for (int i = 0; i < menuitems.Count; i++)
{
if (i == 0 && !menu.FirstIsInScope())
{
PrintFreeString(new FreeString("...", dotPosition, currentRow,
menuitems[i].GetColor1(), menuitems[i].GetColor2(), Alignment.Center));
}
else if (i == menuitems.Count - 1 && !menu.LastIsInScope())
{
PrintFreeString(new FreeString("...", dotPosition, currentRow,
menuitems[i].GetColor1(), menuitems[i].GetColor2(), Alignment.Center));
}
else if (i + menu.GetFirstItemIndexInScope() == menu.GetCurrentSelectedIndex())
{
PrintFreeString(new FreeString(menuitems[i].GetText(), positionX, currentRow,
menuitems[i].GetColor2(), menuitems[i].GetColor1(), menu.GetAlignment()));
}
else
{
PrintFreeString(new FreeString(menuitems[i].GetText(), positionX, currentRow,
menuitems[i].GetColor1(), menuitems[i].GetColor2(), menu.GetAlignment()));
}
currentRow++;
}
CleanUp();
}
}
public void ScrollableMenuDemo()
{
cHandler.Reset();
Console.Clear();
ScrollableMenu <int> menu = new ScrollableMenu <int>(30, 10, 20, 10, Color.Green, Color.Black);
for (int i = 1; i <= 30; i++)
{
menu.AddItem($"{i}", i);
}
menu.AddItem("Exit", 0);
FreeStringBundle guide = new FreeStringBundle(5, 20, 30);
guide.Add("This menu contains 30 numbered items and an exit button");
guide.Add("Q | LeftAlign, W | CenterAlign, E | RightAlign");
bool exit = false;
while (!exit)
{
guide.Print();
menu.Print();
ConsoleKey switcher = Console.ReadKey().Key;
switch (switcher)
{
case ConsoleKey.Enter:
if (menu.GetReturn() == 0)
{
exit = true;
}
break;
case ConsoleKey.UpArrow:
if (!menu.AtTop())
{
Console.Clear();
menu.Up();
}
break;
case ConsoleKey.DownArrow:
if (!menu.AtBottem())
{
Console.Clear();
menu.Down();
}
break;
case ConsoleKey.Q:
menu.LeftAlign();
Console.Clear();
break;
case ConsoleKey.W:
menu.CenterAlign();
Console.Clear();
break;
case ConsoleKey.E:
menu.RightAlign();
Console.Clear();
break;
}
}
}
