y.view
Class SimpleBendHandler

java.lang.Object
  y.view.SimpleBendHandler

All Implemented Interfaces:

GenericEdgeRealizer.BendHandler

public class SimpleBendHandler
extends java.lang.Object
implements GenericEdgeRealizer.BendHandler

A simple default implementation of GenericEdgeRealizer.BendHandler that poses no restrictions on the number of bends in a GenericEdgeRealizer instance. This implementation mimics the one found in PolyLineEdgeRealizer for example.

Constructor Summary

SimpleBendHandler()

Method Summary

void	bendChanged(EdgeRealizer context, BendList bends, Bend b, double oldX, double oldY) This implementation does nothing.
Bend	createBend(EdgeRealizer context, BendList bends, double x, double y, Bend refBend, int dir) Adds a new bend before or after the given reference bend.
int	getMinBendCount(EdgeRealizer context) This implementation returns 0
Bend	insertBend(EdgeRealizer context, BendList bends, double x, double y) Callback method for EdgeRealizer.insertBend(double, double)
void	reInsertBend(EdgeRealizer context, BendList bends, Bend bend, Bend refBend, int dir) Callback method for EdgeRealizer.reInsertBend(Bend, Bend, int)
Bend	removeBend(EdgeRealizer context, BendList bends, Bend b) Callback method for EdgeRealizer.removeBend(Bend)

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleBendHandler

public SimpleBendHandler()

Method Detail

getMinBendCount

public int getMinBendCount(EdgeRealizer context)

This implementation returns 0

Specified by:

getMinBendCount in interface GenericEdgeRealizer.BendHandler

Parameters:

context - the context EdgeRealizer

Returns:

0

createBend

public Bend createBend(EdgeRealizer context,
                       BendList bends,
                       double x,
                       double y,
                       Bend refBend,
                       int dir)

Adds a new bend before or after the given reference bend.

Specified by:

createBend in interface GenericEdgeRealizer.BendHandler

Parameters:

x - X-coordinate of the Bend

y - Y-coordinate of the Bend

refBend - Bend which should be neighbor

dir - indicates if the new Bend should be added before (Graph.BEFORE) or after (Graph.AFTER) the refBend in the bend sequence of the edge

context - the context EdgeRealizer

bends - the current BendList

See Also:

EdgeRealizer.createBend(double, double, Bend, int)

reInsertBend

public void reInsertBend(EdgeRealizer context,
                         BendList bends,
                         Bend bend,
                         Bend refBend,
                         int dir)

Description copied from interface: GenericEdgeRealizer.BendHandler

Callback method for EdgeRealizer.reInsertBend(Bend, Bend, int)

Specified by:

reInsertBend in interface GenericEdgeRealizer.BendHandler

Parameters:

context - the context EdgeRealizer

bends - the current BendList

bend - the bend to be reinserted

refBend - the reference bend

dir - the direction of the insertion, either Graph.BEFORE or Graph.AFTER

See Also:

EdgeRealizer.reInsertBend(Bend, Bend, int)

insertBend

public Bend insertBend(EdgeRealizer context,
                       BendList bends,
                       double x,
                       double y)

Description copied from interface: GenericEdgeRealizer.BendHandler

Callback method for EdgeRealizer.insertBend(double, double)

Specified by:

insertBend in interface GenericEdgeRealizer.BendHandler

Parameters:

context - the context EdgeRealizer

bends - the current BendList

See Also:

EdgeRealizer.insertBend(double, double)

bendChanged

public void bendChanged(EdgeRealizer context,
                        BendList bends,
                        Bend b,
                        double oldX,
                        double oldY)

This implementation does nothing.

Specified by:

bendChanged in interface GenericEdgeRealizer.BendHandler

Parameters:

context - the context EdgeRealizer

bends - the current BendList

b - the bend that changed

oldX - the old x coordinate

oldY - the old y coordinate

removeBend

public Bend removeBend(EdgeRealizer context,
                       BendList bends,
                       Bend b)

Description copied from interface: GenericEdgeRealizer.BendHandler

Callback method for EdgeRealizer.removeBend(Bend)

Specified by:

removeBend in interface GenericEdgeRealizer.BendHandler

Parameters:

context - the context EdgeRealizer

bends - the current BendList

b - the bend to be removed

See Also:

EdgeRealizer.removeBend(Bend)