org.openstreetmap.josm.command

Class MoveCommand

java.lang.Object

org.openstreetmap.josm.command.PseudoCommand

org.openstreetmap.josm.command.Command

org.openstreetmap.josm.command.MoveCommand

public class MoveCommand
extends Command

MoveCommand moves a set of OsmPrimitives along the map. It can be moved again to collect several MoveCommands into one command.

Nested Class Summary

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

Command.OldNodeState

Field Summary

Fields

Modifier and Type	Field and Description
private double	backupX
private double	backupY
private java.util.Collection<Node>	nodes The objects that should be moved.
private java.util.List<Command.OldNodeState>	oldState List of all old states of the objects.
private EastNorth	startEN Starting position, base command point, current (mouse-drag) position = startEN + (x,y) =
private double	x x difference movement.
private double	y y difference movement.

Constructor Summary

Constructors

Constructor and Description
MoveCommand(java.util.Collection<OsmPrimitive> objects, double x, double y) Constructs a new MoveCommand and assign the initial object set and movement vector.
MoveCommand(java.util.Collection<OsmPrimitive> objects, EastNorth offset) Constructs a new MoveCommand to move a collection of primitives.
MoveCommand(java.util.Collection<OsmPrimitive> objects, EastNorth start, EastNorth end) Constructs a new MoveCommand to move a collection of primitives.
MoveCommand(Node node, LatLon position) Constructs a new MoveCommand to move a node.
MoveCommand(OsmPrimitive osm, double x, double y) Constructs a new MoveCommand to move a primitive.
MoveCommand(OsmPrimitive p, EastNorth start, EastNorth end) Constructs a new MoveCommand to move a primitive.

Method Summary

Modifier and Type	Method and Description
void	applyVectorTo(EastNorth currentEN) Change the displacement vector to have endpoint currentEN.
void	changeStartPoint(EastNorth newDraggedStartPoint) Changes base point of movement
boolean	equals(java.lang.Object obj)
boolean	executeCommand() Executes the command on the dataset.
void	fillModifiedData(java.util.Collection<OsmPrimitive> modified, java.util.Collection<OsmPrimitive> deleted, java.util.Collection<OsmPrimitive> added) Fill in the changed data this command operates on.
javax.swing.Icon	getDescriptionIcon() Provides a descriptive icon of this command.
java.lang.String	getDescriptionText() Provides a description text representing this command.
java.util.Collection<Node>	getParticipatingPrimitives() Return the primitives that take part in this command.
int	hashCode()
void	moveAgain(double x, double y) Move the same set of objects again by the specified vector.
void	moveAgainTo(double x, double y) Move again to the specified coordinates.
void	resetToCheckpoint() Restore old displacement in case of some problems
void	saveCheckpoint() Save curent displacement to restore in case of some problems
void	undoCommand() Undoes the command.
private void	updateCoordinates()

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

checkAndConfirmOutlyingOperation, getAffectedDataSet, getLayer, getOrig, invalidateAffectedLayers, invalidBecauselayerRemoved

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

getChildren

Methods inherited from class java.lang.Object

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

Field Detail

nodes

private java.util.Collection<Node> nodes

The objects that should be moved.

startEN

private EastNorth startEN

Starting position, base command point, current (mouse-drag) position = startEN + (x,y) =

x

private double x

x difference movement. Coordinates are in northern/eastern

y

private double y

y difference movement. Coordinates are in northern/eastern

backupX

private double backupX

backupY

private double backupY

oldState

private final java.util.List<Command.OldNodeState> oldState

List of all old states of the objects.

Constructor Detail

MoveCommand

public MoveCommand(OsmPrimitive osm,
                   double x,
                   double y)

Constructs a new MoveCommand to move a primitive.

Parameters:

osm - The primitive to move

x - X difference movement. Coordinates are in northern/eastern

y - Y difference movement. Coordinates are in northern/eastern

MoveCommand

public MoveCommand(Node node,
                   LatLon position)

Constructs a new MoveCommand to move a node.

Parameters:

node - The node to move

position - The new location (lat/lon)

MoveCommand

public MoveCommand(java.util.Collection<OsmPrimitive> objects,
                   EastNorth offset)

Constructs a new MoveCommand to move a collection of primitives.

Parameters:

objects - The primitives to move

offset - The movement vector

MoveCommand

public MoveCommand(java.util.Collection<OsmPrimitive> objects,
                   double x,
                   double y)

Constructs a new MoveCommand and assign the initial object set and movement vector.

Parameters:

objects - The primitives to move

x - X difference movement. Coordinates are in northern/eastern

y - Y difference movement. Coordinates are in northern/eastern

MoveCommand

public MoveCommand(java.util.Collection<OsmPrimitive> objects,
                   EastNorth start,
                   EastNorth end)

Constructs a new MoveCommand to move a collection of primitives.

Parameters:

objects - The primitives to move

start - The starting position (northern/eastern)

end - The ending position (northern/eastern)

MoveCommand

public MoveCommand(OsmPrimitive p,
                   EastNorth start,
                   EastNorth end)

Constructs a new MoveCommand to move a primitive.

Parameters:

p - The primitive to move

start - The starting position (northern/eastern)

end - The ending position (northern/eastern)

Method Detail

moveAgain

public void moveAgain(double x,
                      double y)

Move the same set of objects again by the specified vector. The vectors are added together and so the resulting will be moved to the previous vector plus this one. The move is immediately executed and any undo will undo both vectors to the original position the objects had before first moving.

Parameters:

x - X difference movement. Coordinates are in northern/eastern

y - Y difference movement. Coordinates are in northern/eastern

moveAgainTo

public void moveAgainTo(double x,
                        double y)

Move again to the specified coordinates.

Parameters:

x - X coordinate

y - Y coordinate

See Also:

moveAgain(double, double)

applyVectorTo

public void applyVectorTo(EastNorth currentEN)

Change the displacement vector to have endpoint currentEN. starting point is startEN

Parameters:

currentEN - the new endpoint

changeStartPoint

public void changeStartPoint(EastNorth newDraggedStartPoint)

Changes base point of movement

Parameters:

newDraggedStartPoint - - new starting point after movement (where user clicks to start new drag)

saveCheckpoint

public final void saveCheckpoint()

Save curent displacement to restore in case of some problems

resetToCheckpoint

public void resetToCheckpoint()

Restore old displacement in case of some problems

updateCoordinates

private void updateCoordinates()

executeCommand

public boolean executeCommand()

Description copied from class: Command

Executes the command on the dataset. This implementation will remember all primitives returned by fillModifiedData for restoring them on undo.

The layer should be invalidated after execution so that it can be re-painted.

Overrides:

executeCommand in class Command

Returns:

true

See Also:

Command.invalidateAffectedLayers()

undoCommand

public void undoCommand()

Description copied from class: Command

Undoes the command. It can be assumed that all objects are in the same state they were before. It can also be assumed that executeCommand was called exactly once before. This implementation undoes all objects stored by a former call to executeCommand.

Overrides:

undoCommand in class Command

fillModifiedData

public void fillModifiedData(java.util.Collection<OsmPrimitive> modified,
                             java.util.Collection<OsmPrimitive> deleted,
                             java.util.Collection<OsmPrimitive> added)

Description copied from class: Command

Fill in the changed data this command operates on. Add to the lists, don't clear them.

Specified by:

fillModifiedData in class Command

Parameters:

modified - The modified primitives

deleted - The deleted primitives

added - The added primitives

getDescriptionText

public java.lang.String getDescriptionText()

Description copied from class: PseudoCommand

Provides a description text representing this command.

Specified by:

getDescriptionText in class PseudoCommand

Returns:

description text representing this command

getDescriptionIcon

public javax.swing.Icon getDescriptionIcon()

Description copied from class: PseudoCommand

Provides a descriptive icon of this command.

Overrides:

getDescriptionIcon in class PseudoCommand

Returns:

descriptive icon of this command

getParticipatingPrimitives

public java.util.Collection<Node> getParticipatingPrimitives()

Description copied from class: Command

Return the primitives that take part in this command. The collection is computed during execution.

Overrides:

getParticipatingPrimitives in class Command

Returns:

primitives that take part in this command

hashCode

public int hashCode()

Overrides:

hashCode in class Command

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class Command