public FreeFormPanel()
{
this.SnapsToDevicePixels = true;
this.AllowDrop = true;
connectorEditor = null;
lastYPosition = FreeFormPanel.TopStackingMargin;
}
public EditPointAdorner(ConnectorEditor cEditor, UIElement adornedElement, bool shouldDrawLines)
: base(adornedElement)
{
Debug.Assert(adornedElement != null, "Adorned element is null.");
adornedEditor = cEditor;
this.IsHitTestVisible = false;
this.drawLines = shouldDrawLines;
}
public void RemoveConnectorEditor()
{
if (connectorEditor != null)
{
connectorEditor.Remove();
connectorEditor = null;
}
}
void CreateNewConnectorEditor(MouseButtonEventArgs e)
{
if (connectorEditor == null || !e.Source.Equals(connectorEditor.Connector))
{
//If user clicks anywhere other than the connector editor, destroy it.
RemoveConnectorEditor();
if (e.Source.GetType().IsAssignableFrom(typeof(Connector)))
{
this.connectorEditor = new ConnectorEditor(this, e.Source as Connector);
}
}
}
protected override void OnKeyDown(KeyEventArgs e)
{
if (e != null && !this.Disabled && this.IsOutmostPanel())
{
if (e.Key == Key.Escape)
{
//If escape key is hit while dragging a connector, end dragging.
if (connectorEditor != null && connectorEditor.BeingEdited)
{
Connector affectedConnector = connectorEditor.Connector;
RemoveConnectorEditor();
this.connectorEditor = new ConnectorEditor(this, affectedConnector);
e.Handled = true;
}
}
}
base.OnKeyDown(e);
}