private bool CanBeginEditing(Point editPoint, HitTestInfo messageContext)
{
ISelectionService selectionService = GetService(typeof(ISelectionService)) as ISelectionService;
if (selectionService != null)
{
Connector selectedConnector = Connector.GetConnectorFromSelectedObject(selectionService.PrimarySelection);
if (selectedConnector != null && selectedConnector.ParentDesigner.EnableUserDrawnConnectors && new ConnectorEditor(selectedConnector).HitTest(editPoint))
{
return(true);
}
}
ConnectionPointHitTestInfo connectionPointHitTestInfo = messageContext as ConnectionPointHitTestInfo;
if (connectionPointHitTestInfo != null && connectionPointHitTestInfo.ConnectionPoint != null)
{
FreeformActivityDesigner connectorContainer = ConnectionManager.GetConnectorContainer(connectionPointHitTestInfo.AssociatedDesigner);
if (connectorContainer != null && connectorContainer.EnableUserDrawnConnectors)
{
return(true);
}
}
return(false);
}
private ConnectorEditor GetConnectorEditor(Point editPoint, System.Workflow.ComponentModel.Design.HitTestInfo messageContext)
{
Connector connectorEdited = null;
ISelectionService service = base.GetService(typeof(ISelectionService)) as ISelectionService;
if (service != null)
{
Connector connectorFromSelectedObject = Connector.GetConnectorFromSelectedObject(service.PrimarySelection);
if (((connectorFromSelectedObject != null) && connectorFromSelectedObject.ParentDesigner.EnableUserDrawnConnectors) && new ConnectorEditor(connectorFromSelectedObject).HitTest(editPoint))
{
connectorEdited = connectorFromSelectedObject;
}
}
if (connectorEdited == null)
{
ConnectionPointHitTestInfo info = messageContext as ConnectionPointHitTestInfo;
if ((info != null) && (info.ConnectionPoint != null))
{
FreeformActivityDesigner connectorContainer = GetConnectorContainer(info.AssociatedDesigner);
if ((connectorContainer != null) && connectorContainer.EnableUserDrawnConnectors)
{
connectorEdited = connectorContainer.CreateConnector(info.ConnectionPoint, info.ConnectionPoint);
}
}
}
if (connectorEdited == null)
{
return(null);
}
return(new ConnectorEditor(connectorEdited));
}
private ConnectorEditor GetConnectorEditor(Point editPoint, HitTestInfo messageContext)
{
Connector connector = null;
//First check if we are editing a existing selected connector
ISelectionService selectionService = GetService(typeof(ISelectionService)) as ISelectionService;
if (selectionService != null)
{
Connector selectedConnector = Connector.GetConnectorFromSelectedObject(selectionService.PrimarySelection);
if (selectedConnector != null && selectedConnector.ParentDesigner.EnableUserDrawnConnectors && new ConnectorEditor(selectedConnector).HitTest(editPoint))
{
connector = selectedConnector;
}
}
//Then check if the hit is on a ConnectionPoint for drawing new connectors
if (connector == null)
{
ConnectionPointHitTestInfo connectionPointHitTestInfo = messageContext as ConnectionPointHitTestInfo;
if (connectionPointHitTestInfo != null && connectionPointHitTestInfo.ConnectionPoint != null)
{
FreeformActivityDesigner connectorContainer = ConnectionManager.GetConnectorContainer(connectionPointHitTestInfo.AssociatedDesigner);
if (connectorContainer != null && connectorContainer.EnableUserDrawnConnectors)
{
connector = connectorContainer.CreateConnector(connectionPointHitTestInfo.ConnectionPoint, connectionPointHitTestInfo.ConnectionPoint);
}
}
}
return((connector != null) ? new ConnectorEditor(connector) : null);
}
/// <summary>
/// Allows detection of the area hit on the designer.
/// </summary>
/// <param name="point">Point to test in logical coordinates.</param>
/// <returns>Information indicating where the hit happened</returns>
public virtual HitTestInfo HitTest(Point point)
{
HitTestInfo hitInfo = HitTestInfo.Nowhere;
if (ParentDesigner is FreeformActivityDesigner ||
(ParentDesigner == null && this is FreeformActivityDesigner))
{
//Check if the hit is on connection
ReadOnlyCollection<ConnectionPoint> connectionPoints = GetConnectionPoints(DesignerEdges.All);
for (int j = 0; j < connectionPoints.Count; j++)
{
if (connectionPoints[j].Bounds.Contains(point))
{
hitInfo = new ConnectionPointHitTestInfo(connectionPoints[j]);
break;
}
}
}
Rectangle bounds = Bounds;
if (bounds.Contains(point) && hitInfo == HitTestInfo.Nowhere)
{
HitTestLocations flags = (bounds.Contains(point)) ? HitTestLocations.Designer : HitTestLocations.None;
Rectangle hitRectangle = new Rectangle(bounds.Left, bounds.Top, bounds.Left - bounds.Left, bounds.Height);
flags |= (hitRectangle.Contains(point)) ? HitTestLocations.Left : flags;
hitRectangle = new Rectangle(bounds.Left, bounds.Top, bounds.Width, bounds.Height - bounds.Height);
flags |= (hitRectangle.Contains(point)) ? HitTestLocations.Top : flags;
hitRectangle = new Rectangle(bounds.Right, bounds.Top, bounds.Width - bounds.Width, bounds.Height);
flags |= (hitRectangle.Contains(point)) ? HitTestLocations.Right : flags;
hitRectangle = new Rectangle(bounds.Left, bounds.Bottom, bounds.Width, bounds.Bottom - bounds.Bottom);
flags |= (hitRectangle.Contains(point)) ? HitTestLocations.Bottom : flags;
hitInfo = new HitTestInfo(this, flags);
}
return hitInfo;
}