public static T NextOrPrevEnumValue <T>(T value, StyleChangeKind change)
{
if (!typeof(T).IsEnum)
{
throw new ArgumentException(string.Format("{0} is not an Enum", typeof(T).FullName));
}
var changer = change == StyleChangeKind.Next ? 1 : -1;
var values = (T[])Enum.GetValues(value.GetType());
var enumCount = values.Length;
var index = (Array.IndexOf(values, value) + changer + enumCount) % enumCount;
return(values[index]);
}
private static List <ICommand> ChangeStyleUnderCursor(State state, UmlWindow umlWindow, StyleChangeKind change)
{
var id = state.Canvas.GetOccupants(state.TheCurser.Pos);
if (!id.HasValue)
{
return(Noop);
}
var elem = state.Model.Objects.Single(x => x.Id == id);
if (elem is IStyleChangeable)
{
return(Lst(new ChangeStyle(elem.Id, change)));
}
new Popup(umlWindow, "Only works on boxes");
return(Noop);
}
public ChangeStyle(int id, StyleChangeKind change)
{
this.id = id;
this.change = change;
}
