org.yakindu.base.xtext.utils.gmf.routing

Class InitialPointsOfRequestDataManager

java.lang.Object

org.yakindu.base.xtext.utils.gmf.routing.InitialPointsOfRequestDataManager

public class InitialPointsOfRequestDataManager
extends java.lang.Object

This manager is used to store the initial points of an edge before the feedback is used. These initial points are stored in the request.
The method #storeInitialPointsInRequest(LocationRequest, ConnectionEditPart, Connection) must be called in the corresponding policy before drawing the feedback.
And the method eraseInitialPoints(Connection) must be called at the end of the feedback drawing (eraseConnection*Feedback methods of Policy classes).

Constructor Summary

Constructors

Constructor and Description
InitialPointsOfRequestDataManager()

Method Summary

Modifier and Type	Method and Description
void	eraseInitialPoints(org.eclipse.draw2d.Connection connection) Reset the initial points stored in this manager and also erase the feedback data from all the EdgeLabelLocator of the labels of the current connection.
static org.eclipse.draw2d.geometry.PointList	getOriginalPoints(org.eclipse.gef.requests.LocationRequest request) Get the initial points list of the edge stored in the request.
void	storeInitialPointsInRequest(org.eclipse.gef.requests.LocationRequest request, org.eclipse.gef.ConnectionEditPart connectionEditPart) Store the initial points of the edge in the request (before feedback drawing).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

InitialPointsOfRequestDataManager

public InitialPointsOfRequestDataManager()

Method Detail

storeInitialPointsInRequest

public void storeInitialPointsInRequest(org.eclipse.gef.requests.LocationRequest request,
                                        org.eclipse.gef.ConnectionEditPart connectionEditPart)

Store the initial points of the edge in the request (before feedback drawing). This data can be used later for computing the location of the labels of this edge in the command construction.
This method also set the feedback data of the EdgeLabelLocator of the labels of the current connection to correctly draw the label feedback during the label move.

Parameters:

request - the request in which to store the original points of the edge.

connectionEditPart - the editPart of the edge

eraseInitialPoints

public void eraseInitialPoints(org.eclipse.draw2d.Connection connection)

Reset the initial points stored in this manager and also erase the feedback data from all the EdgeLabelLocator of the labels of the current connection.

Parameters:

connection - The connection from which to erase feedback data

getOriginalPoints

public static org.eclipse.draw2d.geometry.PointList getOriginalPoints(org.eclipse.gef.requests.LocationRequest request)

Get the initial points list of the edge stored in the request.

Parameters:

request - The request to query

Returns:

the original points list or null if no original points are stored in this request.