private static void OnDragMove(object sender, MouseEventArgs e)
{
FrameworkElement el = (FrameworkElement)sender;
Point origin = GetTargetStart(el);
if (origin != default(Point))
{
SocketBaseViewModel socket = GetTarget(el);
if (socket != null)
{
Vector distance = e.GetPosition(GetAnchor(el)) - GetDragStart(el);
socket.Left = OneDecimal(origin.X + distance.X * 25.4 / 96.0);
socket.Top = OneDecimal(origin.Y + distance.Y * 25.4 / 96.0);
e.Handled = true;
}
}
}
private static void OnDragStart(object sender, MouseButtonEventArgs e)
{
FrameworkElement el = (FrameworkElement)sender;
if (el.Focusable)
{
el.Focus();
}
if (el.CaptureMouse())
{
SetDragStart(el, e.GetPosition(GetAnchor(el)));
SocketBaseViewModel socket = GetTarget(el);
if (socket != null)
{
SetTargetStart(el, new Point(socket.Left, socket.Top));
}
e.Handled = true;
}
}
private static void OnNotchPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
SocketBaseViewModel socket = (SocketBaseViewModel)d;
switch ((Dock)e.NewValue)
{
case Dock.Right:
socket.Orientation = 0;
break;
case Dock.Top:
socket.Orientation = 90;
break;
case Dock.Left:
socket.Orientation = 180;
break;
case Dock.Bottom:
socket.Orientation = 270;
break;
}
}
private static void OnDragKey(object sender, KeyEventArgs e)
{
SocketBaseViewModel socket = GetTarget(sender as FrameworkElement);
double delta = e.KeyboardDevice.Modifiers.HasFlag(ModifierKeys.Control) ? 5.0 : 0.1;
switch (e.Key)
{
case Key.Left:
socket.Left = OneDecimal(socket.Left - delta);
e.Handled = true;
break;
case Key.Right:
socket.Left = OneDecimal(socket.Left + delta);
e.Handled = true;
break;
case Key.Up:
socket.Top = OneDecimal(socket.Top - delta);
e.Handled = true;
break;
case Key.Down:
socket.Top = OneDecimal(socket.Top + delta);
e.Handled = true;
break;
case Key.Space:
socket.Notch = (Dock)(((int)socket.Notch + 1) % 4);
break;
default:
break;
}
}
public static void SetTarget(DependencyObject obj, SocketBaseViewModel value)
{
obj.SetValue(TargetProperty, value);
}