Class FeedbackHelper


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

      Constructors 
      Constructor Description
      FeedbackHelper()
      Constructs a new FeedbackHelper.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      protected org.eclipse.draw2d.Connection getConnection()
      Returns the connection being used to show feedback.
      protected boolean isMovingStartAnchor()
      Returns true is the feedback is moving the source anchor
      protected void setAnchor​(org.eclipse.draw2d.ConnectionAnchor anchor)
      Sets the anchor for the end being moved.
      void setConnection​(org.eclipse.draw2d.Connection c)
      Sets the connection.
      void setMovingStartAnchor​(boolean value)
      Sets if moving start of connection.
      void update​(org.eclipse.draw2d.ConnectionAnchor anchor, org.eclipse.draw2d.geometry.Point p)
      Updates the feedback based on the given anchor or point.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Constructor Detail

      • FeedbackHelper

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

      • getConnection

        protected org.eclipse.draw2d.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​(org.eclipse.draw2d.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​(org.eclipse.draw2d.ConnectionAnchor anchor)
        Sets the anchor for the end being moved.
        Parameters:
        anchor - the new anchor
      • update

        public void update​(org.eclipse.draw2d.ConnectionAnchor anchor,
                           org.eclipse.draw2d.geometry.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