Class FeedbackHelper

java.lang.Object
org.eclipse.gef.editpolicies.FeedbackHelper

public class FeedbackHelper extends Object
Helps display connection feedback during drags of the connection ends. This class is used internally by the provided EditPolicy implementation.
  • Constructor Details

    • FeedbackHelper

      public FeedbackHelper()
      Constructs a new FeedbackHelper.
  • Method Details

    • getConnection

      protected Connection getConnection()
      Returns the connection being used to show feedback.
      Returns:
      the connection
    • isMovingStartAnchor

      protected boolean isMovingStartAnchor()
      Returns true is the feedback is moving the source anchor
      Returns:
      true if moving start
    • setConnection

      public void setConnection(Connection c)
      Sets the connection.
      Parameters:
      c - connection
    • setMovingStartAnchor

      public void setMovingStartAnchor(boolean value)
      Sets if moving start of connection.
      Parameters:
      value - true if the starts is being moved
    • setAnchor

      protected void setAnchor(ConnectionAnchor anchor)
      Sets the anchor for the end being moved.
      Parameters:
      anchor - the new anchor
    • update

      public void update(ConnectionAnchor anchor, Point p)
      Updates the feedback based on the given anchor or point. The anchor is used unless null. The point is used when there is no anchor.
      Parameters:
      anchor - null or an anchor
      p - the point to use when there is no anchor