org.openstreetmap.josm.command
Class ScaleCommand

java.lang.Object
  org.openstreetmap.josm.command.PseudoCommand
      org.openstreetmap.josm.command.Command
          org.openstreetmap.josm.command.TransformNodesCommand
              org.openstreetmap.josm.command.ScaleCommand

public class ScaleCommand
extends TransformNodesCommand

Nested Class Summary

Nested classes/interfaces inherited from class org.openstreetmap.josm.command.TransformNodesCommand

TransformNodesCommand.OldState

Field Summary

private EastNorth	pivot Pivot point
private double	scalingFactor Current scaling factor applied
(package private) EastNorth	startEN World position of the mouse when the user started the command.

Fields inherited from class org.openstreetmap.josm.command.TransformNodesCommand

nodes, oldStates

Constructor Summary

ScaleCommand(java.util.Collection<OsmPrimitive> objects, EastNorth currentEN)
Creates a ScaleCommand.

Method Summary

javax.swing.Icon	getDescriptionIcon() Provides a descriptive icon of this command.
java.lang.String	getDescriptionText() Provides a description text representing this command.
void	handleEvent(EastNorth currentEN) Compute new scaling factor and transform nodes accordingly.
protected void	transformNodes() Scale nodes.

Methods inherited from class org.openstreetmap.josm.command.TransformNodesCommand

executeCommand, fillModifiedData, flagNodesAsModified, getNodesCenter, getParticipatingPrimitives, getTransformedNodes, storeOldState, undoCommand

Methods inherited from class org.openstreetmap.josm.command.Command

checkAndConfirmOutlyingOperation, getLayer, getOrig, invalidBecauselayerRemoved

Methods inherited from class org.openstreetmap.josm.command.PseudoCommand

getChildren

Methods inherited from class java.lang.Object

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

Field Detail

pivot

private EastNorth pivot

Pivot point

scalingFactor

private double scalingFactor

Current scaling factor applied

startEN

EastNorth startEN

World position of the mouse when the user started the command.

Constructor Detail

ScaleCommand

public ScaleCommand(java.util.Collection<OsmPrimitive> objects,
                    EastNorth currentEN)

Creates a ScaleCommand. Assign the initial object set, compute pivot point. Computation of pivot point is done by the same rules that are used in the "align nodes in circle" action.

Method Detail

handleEvent

public void handleEvent(EastNorth currentEN)

Compute new scaling factor and transform nodes accordingly.

Specified by:

handleEvent in class TransformNodesCommand

Parameters:

currentEN - the current world position of the mouse

transformNodes

protected void transformNodes()

Scale nodes.

Specified by:

transformNodes in class TransformNodesCommand

getDescriptionText

public java.lang.String getDescriptionText()

Description copied from class: PseudoCommand

Provides a description text representing this command.

Overrides:

getDescriptionText in class TransformNodesCommand

getDescriptionIcon

public javax.swing.Icon getDescriptionIcon()

Description copied from class: PseudoCommand

Provides a descriptive icon of this command.

Overrides:

getDescriptionIcon in class TransformNodesCommand