public ConnectionArrow(DiagramItem fromItem, DiagramItem toItem, double chance)
{
FromItem = fromItem;
TargetItem = toItem;
ConnectionArrowType = Equals(FromItem, TargetItem)
? ConnectionArrowType.Loopback
: ConnectionArrowType.Normal;
ViewType = ConnectionArrowType == ConnectionArrowType.Normal
? Properties.Settings.Default.NormalArrowType
: Properties.Settings.Default.OutArrowType;
if (toItem.GetType() == typeof(OutBuffItem))
{
ConnectionArrowType = Properties.Settings.Default.OutArrowType == 0
? ConnectionArrowType.Normal
: ConnectionArrowType.OutArrowType;
}
Chance = chance;
UpdateLink();
SetDeafultStyle();
fromItem.ConnectionArrows.Add(this);
toItem.ConnectionArrows.Add(this);
PreviewMouseLeftButtonDown += OnPreviewMouseLeftButtonDown;
MouseEnter += OnMouseEnter;
MouseLeave += OnMouseLeave;
}
/// <summary>
/// Добавление новой связи
/// </summary>
/// <param name="from"></param>
/// <param name="to"></param>
/// <param name="chance"></param>
/// <param name="isGroups">связь между группами</param>
public void AddNewLink(DiagramItem from, DiagramItem to, double chance, bool isGroups = false)
{
if (isGroups)
{
_canvas.Children.Add(new ConnectionArrow(from, to, chance));
return;
}
if ((to.GetType() == typeof(InBuffItem)) ||
(from.GetType() == to.GetType() && to.GetType() != typeof(NodeItem)))
{
MessageBox.Show("Невозможно добавить связь", "Ошибка!", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
if (_canvas.Children.OfType<ConnectionArrow>().Count(
x => Equals(x.FromItem, from) && Equals(x.TargetItem, to)) == 0)
{
var createWindow = new ChangeLinkWindow(from, to) {Owner = Application.Current.MainWindow};
createWindow.ShowDialog();
if (createWindow.Chance > 0)
{
var connection = new ConnectionArrow(from, to, createWindow.Chance);
_canvas.Children.Add(connection);
}
}
else MessageBox.Show("Такая связь уже имеется", "Ошибка!", MessageBoxButton.OK, MessageBoxImage.Error);
}