Пример #1
0
        internal ConnectorInfo GetInfo()
        {
            ConnectorInfo info = new ConnectorInfo();

            info.DesignerItemLeft = DesignerCanvas.GetLeft(this.ParentDesignerItem);
            info.DesignerItemTop  = DesignerCanvas.GetTop(this.ParentDesignerItem);
            info.DesignerItemSize = new Size(this.ParentDesignerItem.ActualWidth, this.ParentDesignerItem.ActualHeight);
            info.Orientation      = this.Orientation;
            info.Position         = this.Position;
            return(info);
        }
Пример #2
0
        protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
        {
            base.OnMouseLeftButtonDown(e);
            DesignerCanvas canvas = GetDesignerCanvas(this);

            if (canvas != null)
            {
                // position relative to DesignerCanvas
                this.dragStartPoint = new Point?(e.GetPosition(canvas));
                e.Handled           = true;
            }
        }
Пример #3
0
        private void ShowAdorner()
        {
            // the ConnectionAdorner is created once for each Connection
            if (this.connectionAdorner == null)
            {
                DesignerCanvas designer = VisualTreeHelper.GetParent(this) as DesignerCanvas;

                AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(this);
                if (adornerLayer != null)
                {
                    this.connectionAdorner = new ConnectionAdorner(designer, this);
                    adornerLayer.Add(this.connectionAdorner);
                }
            }
            this.connectionAdorner.Visibility = Visibility.Visible;
        }
Пример #4
0
        public ConnectionAdorner(DesignerCanvas designer, Connection connection)
            : base(designer)
        {
            this.designerCanvas = designer;
            adornerCanvas       = new Canvas();
            this.visualChildren = new VisualCollection(this);
            this.visualChildren.Add(adornerCanvas);

            this.connection = connection;
            this.connection.PropertyChanged += new PropertyChangedEventHandler(AnchorPositionChanged);

            InitializeDragThumbs();

            drawingPen          = new Pen(Brushes.LightSlateGray, 1);
            drawingPen.LineJoin = PenLineJoin.Round;

            base.Unloaded += new RoutedEventHandler(ConnectionAdorner_Unloaded);
        }
Пример #5
0
        protected override void OnDrop(DragEventArgs e)
        {
            base.OnDrop(e);
            DragObject dragObject = e.Data.GetData(typeof(DragObject)) as DragObject;

            if (dragObject != null && !String.IsNullOrEmpty(dragObject.Xaml))
            {
                DesignerItem newItem = null;
                Object       content = XamlReader.Load(XmlReader.Create(new StringReader(dragObject.Xaml)));

                if (content != null)
                {
                    newItem         = new DesignerItem();
                    newItem.Content = content;

                    Point position = e.GetPosition(this);

                    if (dragObject.DesiredSize.HasValue)
                    {
                        Size desiredSize = dragObject.DesiredSize.Value;
                        newItem.Width  = desiredSize.Width;
                        newItem.Height = desiredSize.Height;

                        DesignerCanvas.SetLeft(newItem, Math.Max(0, position.X - newItem.Width / 2));
                        DesignerCanvas.SetTop(newItem, Math.Max(0, position.Y - newItem.Height / 2));
                    }
                    else
                    {
                        DesignerCanvas.SetLeft(newItem, Math.Max(0, position.X));
                        DesignerCanvas.SetTop(newItem, Math.Max(0, position.Y));
                    }

                    Canvas.SetZIndex(newItem, this.Children.Count);
                    this.Children.Add(newItem);
                    SetConnectorDecoratorTemplate(newItem);

                    //update selection
                    this.SelectionService.SelectItem(newItem);
                    newItem.Focus();
                }

                e.Handled = true;
            }
        }
Пример #6
0
        void Connection_Unloaded(object sender, RoutedEventArgs e)
        {
            // do some housekeeping when Connection is unloaded

            // remove event handler
            this.Source = null;
            this.Sink   = null;

            // remove adorner
            if (this.connectionAdorner != null)
            {
                DesignerCanvas designer = VisualTreeHelper.GetParent(this) as DesignerCanvas;

                AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(this);
                if (adornerLayer != null)
                {
                    adornerLayer.Remove(this.connectionAdorner);
                    this.connectionAdorner = null;
                }
            }
        }
Пример #7
0
 public SelectionService(DesignerCanvas canvas)
 {
     this.designerCanvas = canvas;
 }