/// <summary>
/// Get start point of the possible selection operation.
/// </summary>
/// <param name="e"></param>
protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
{
base.OnMouseLeftButtonDown(e);
DesignerCanvas designer = DiagramHelper.GetDiagramDesigner(this);
if (designer != null)
{
// position relative to DesignerCanvas
this.dragStartPoint = new Point?(e.GetPosition(designer));
e.Handled = true;
}
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="designer">Diagram designer.</param>
/// <param name="sourceConnector">Source item of the relationship.</param>
public DiagramConnectorAdorner(DesignerCanvas designer, DiagramConnector sourceConnector, Point startPoint)
: base(designer)
{
this.diagramDesigner = designer;
this.sourceConnector = sourceConnector;
this.startPoint = startPoint;
sourceItem = sourceConnector.DiagramItem;
drawingPen = new Pen(Brushes.LightSlateGray, 1);
drawingPen.LineJoin = PenLineJoin.Round;
this.Cursor = Cursors.Cross;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="designer">Diagram designer.</param>
/// <param name="sourceConnector">Source item of the relationship.</param>
public DiagramConnectorAdorner(DesignerCanvas designer, DiagramConnector sourceConnector, Point startPoint)
: base(designer)
{
this.diagramDesigner = designer;
this.sourceConnector = sourceConnector;
this.startPoint = startPoint;
sourceItem = sourceConnector.DiagramItem;
drawingPen = new Pen(Brushes.LightSlateGray, 1);
drawingPen.LineJoin = PenLineJoin.Round;
this.Cursor = Cursors.Cross;
}
private static void SelectedItemsPropertyChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
{
DesignerCanvas designer = obj as DesignerCanvas;
if (designer != null)
{
if (designer.SelectedItems == null)
{
designer.SelectionService.ClearSelection(false);
}
else
{
if (designer.SelectedItems.Count == 0)
{
designer.SelectionService.ClearSelection(false);
}
else
{
}
}
}
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="diagramDesigner">Designer for which this service is to be initialized.</param>
public SelectionService(DesignerCanvas diagramDesigner)
{
this.currentSelection = new List<ISelectable>();
this.diagramDesigner = diagramDesigner;
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="diagramDesigner">Designer for which this service is to be initialized.</param>
public SelectionService(DesignerCanvas diagramDesigner)
{
this.currentSelection = new List <ISelectable>();
this.diagramDesigner = diagramDesigner;
}