Eclipse GEF and Draw2d Plug-in Developer Guide (Galileo) - ManhattanConnectionRouter (Eclipse Draw2d API Specification)

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Eclipse Draw2d
3.3

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org.eclipse.draw2d
Class ManhattanConnectionRouter

java.lang.Object
  

org.eclipse.draw2d.AbstractRouter
      
org.eclipse.draw2d.ManhattanConnectionRouter

All Implemented Interfaces:: ConnectionRouter

public final class ManhattanConnectionRouter
extends AbstractRouter

Provides a Connection with an orthogonal route between the Connection's source and target anchors.

Nested Class Summary

Nested classes inherited from class org.eclipse.draw2d. ConnectionRouter

ConnectionRouter.NullConnectionRouter

Field Summary

Fields inherited from interface org.eclipse.draw2d. ConnectionRouter

NULL

Constructor Summary

ManhattanConnectionRouter ()


Method Summary

protected Ray getDirection ( Rectangle r, Point p)
          Returns the direction the point p is in relation to the given rectangle.

protected Ray getEndDirection ( Connection conn)


protected int getRowNear ( Connection connection, int r, int n, int x)


protected Ray getStartDirection ( Connection conn)


void invalidate ( Connection connection)
          Causes the router to discard any cached information about the given Connection.

protected void processPositions ( Ray start, Ray end, java.util.List positions, boolean horizontal, Connection conn)


void remove ( Connection connection)
          Removes the given Connection from this routers list of Connections it is responsible for.

protected void removeReservedLines ( Connection connection)


protected void reserveColumn ( Connection connection, java.lang.Integer column)


protected void reserveRow ( Connection connection, java.lang.Integer row)


void route ( Connection conn)
          Routes the Connection.

Methods inherited from class org.eclipse.draw2d. AbstractRouter

getConstraint, getEndPoint, getStartPoint, setConstraint

Methods inherited from class java.lang.Object

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

Constructor Detail

ManhattanConnectionRouter

public ManhattanConnectionRouter()

Method Detail

invalidate

public void invalidate(
Connection connection)

Description copied from class: AbstractRouter

Causes the router to discard any cached information about the given Connection.

Specified by:: invalidate in interface ConnectionRouter
Overrides:: invalidate in class AbstractRouter

Parameters:: connection - The connection to invalidate
See Also:: ConnectionRouter.invalidate(Connection)

getDirection

protected 
Ray getDirection(
Rectangle r,
                           
Point p)

Returns the direction the point p is in relation to the given rectangle. Possible values are LEFT (-1,0), RIGHT (1,0), UP (0,-1) and DOWN (0,1).

Parameters:: r - the rectangle; p - the point
Returns:: the direction from r to p

getEndDirection

protected 
Ray getEndDirection(
Connection conn)

getRowNear

protected int getRowNear(
Connection connection,
                         int r,
                         int n,
                         int x)

getStartDirection

protected 
Ray getStartDirection(
Connection conn)

processPositions

protected void processPositions(
Ray start,
                                
Ray end,
                                java.util.List positions,
                                boolean horizontal,
                                
Connection conn)

remove

public void remove(
Connection connection)