Example #1
0
        private void EndLink(MouseEventArgs e)
        {
            var link = ActionObject.Link;
            var node = ActiveElement.Node;

            if (node == null && !link.Links.AllowFreeFloatingLinks)
            {
                // free-floating links are not allowed and this action would not attach the link to a node
                return;
            }
            if (node != null)
            {
                link.Target.Node      = node;
                link.Target.RelativeX = e.RelativeXTo(node);
                link.Target.RelativeY = e.RelativeYTo(node);
            }
            else
            {
                link.Target.RelativeX = e.RelativeXToOrigin(this);
                link.Target.RelativeY = e.RelativeYToOrigin(this);
            }
            link.Deselect();
            link.Links.OnModified?.Invoke(link);
            Overview?.TriggerUpdate();
            Changes.New(new ChangeAction(() => { Links.Add(link); }, () => { Links.Remove(link); }));
            ActionObject.Clear();
            ActionType = ActionType.None;
        }
Example #2
0
 private void MoveGroup(MouseEventArgs e)
 {
     if (ActionObject.Point != null)
     {
         var delta_x = e.RelativeXTo(ActionObject.Point) / NavigationSettings.Zoom;
         var delta_y = e.RelativeYTo(ActionObject.Point) / NavigationSettings.Zoom;
         foreach (var node in Group.Nodes)
         {
             node.MoveTo(node.X + delta_x, node.Y + delta_y);
         }
         (ActionObject.Point.X, ActionObject.Point.Y) = (e.ClientX, e.ClientY);
     }
     else
     {
         ActionObject.SetPoint(new Point(e.ClientX, e.ClientY));
         ActionObject.RememberOrigin(new Point(ActionObject.Node.X, ActionObject.Node.Y));
     }
     Overview?.TriggerUpdate();
 }
Example #3
0
 private void MoveControlPoint(MouseEventArgs e)
 {
     if (ActionObject.Point != null)
     {
         var point   = ActionObject.ControlPoint;
         var delta_x = e.RelativeXTo(ActionObject.Point) / NavigationSettings.Zoom;
         var delta_y = e.RelativeYTo(ActionObject.Point) / NavigationSettings.Zoom;
         point.X += delta_x;
         point.Y += delta_y;
         (ActionObject.Point.X, ActionObject.Point.Y) = (e.ClientX, e.ClientY);
         Overview?.TriggerUpdate();
         ActionObject.Link.TriggerStateHasChanged();
     }
     else
     {
         ActionObject.SetPoint(new Point(e.ClientX, e.ClientY));
         ActionObject.RememberOrigin(new Point(ActionObject.ControlPoint.X, ActionObject.ControlPoint.Y));
     }
 }
Example #4
0
        internal void AddNewLink(NodeBase node, MouseEventArgs e, Action <LinkBase> on_link_create)
        {
            var source_point = new NodeAnchor
            {
                Node      = node,
                RelativeX = e.RelativeXTo(node),
                RelativeY = e.RelativeYTo(node)
            };
            var target_point = new NodeAnchor
            {
                RelativeX = e.RelativeXToOrigin(Diagram),
                RelativeY = e.RelativeYToOrigin(Diagram)
            };

            internally_generated_links.Add(new LinkData {
                Source = source_point, Target = target_point, LinkType = DefaultType, Arrow = DefaultArrow, OnCreate = on_link_create
            });
            generated_links_ref.TriggerStateHasChanged();
        }
 public static double RelativeXToOrigin(this MouseEventArgs e, Diagram diagram) => e.RelativeXTo(diagram) + diagram.NavigationSettings.Origin.X;