Package org.openstreetmap.josm.actions

Class AlignGridRotationAction

java.lang.Object

javax.swing.AbstractAction

org.openstreetmap.josm.actions.JosmAction

org.openstreetmap.josm.actions.AlignGridRotationAction

All Implemented Interfaces:

java.awt.event.ActionListener, java.io.Serializable, java.lang.Cloneable, java.util.EventListener, javax.swing.Action, Destroyable

public class AlignGridRotationAction
extends JosmAction

Rotates the grid drawn over the map so that its lines run parallel to the current selection: either a single way (the direction from its first to its last node) or exactly two nodes. Switches the grid to projected coordinates, since a latitude/longitude grid cannot be rotated, and enables it.

Since:

19640

See Also:

MapGridPaintable, SetGridOriginAction, Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.openstreetmap.josm.actions.JosmAction

JosmAction.ActiveLayerChangeAdapter, JosmAction.LayerChangeAdapter, JosmAction.SelectionChangeAdapter

Field Summary

Fields inherited from class org.openstreetmap.josm.actions.JosmAction

sc

Fields inherited from class javax.swing.AbstractAction

changeSupport, enabled

Fields inherited from interface javax.swing.Action

ACCELERATOR_KEY, ACTION_COMMAND_KEY, DEFAULT, DISPLAYED_MNEMONIC_INDEX_KEY, LARGE_ICON_KEY, LONG_DESCRIPTION, MNEMONIC_KEY, NAME, SELECTED_KEY, SHORT_DESCRIPTION, SMALL_ICON

Constructor Summary

Constructors

Constructor	Description
AlignGridRotationAction()	Constructs a new AlignGridRotationAction.

Method Summary

Modifier and Type	Method	Description
void	actionPerformed(java.awt.event.ActionEvent e)
(package private) static EastNorth[]	getSelectedDirection(DataSet ds)	Determines the direction given by the selection: a single way with at least two nodes, or exactly two nodes.
static double	rotationOf(EastNorth from, EastNorth to)	Computes the grid rotation (counter clockwise, in degrees, in the range [0, 90)) for which a grid line is parallel to the given direction.
protected void	updateEnabledState()	Override in subclasses to update the enabled state of the action when something in the JOSM state changes, i.e.
protected void	updateEnabledState(java.util.Collection<? extends OsmPrimitive> selection)	Override in subclasses to update the enabled state of the action if the collection of selected primitives changes.

Methods inherited from class org.openstreetmap.josm.actions.JosmAction

buildActiveLayerChangeAdapter, buildLayerChangeAdapter, checkAndConfirmOutlyingOperation, destroy, getLayerManager, getShortcut, initEnabledState, installAdapters, listenToLayerChange, listenToSelectionChange, setHelpId, setToolbarId, setTooltip, updateEnabledStateOnCurrentSelection, updateEnabledStateOnCurrentSelection, updateEnabledStateOnModifiableSelection, waitFuture

Methods inherited from class javax.swing.AbstractAction

addPropertyChangeListener, clone, firePropertyChange, getKeys, getPropertyChangeListeners, getValue, isEnabled, putValue, removePropertyChangeListener, setEnabled

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.swing.Action

accept

Constructor Detail

AlignGridRotationAction

public AlignGridRotationAction()

Constructs a new AlignGridRotationAction.

Method Detail

getSelectedDirection

static EastNorth[] getSelectedDirection(DataSet ds)

Determines the direction given by the selection: a single way with at least two nodes, or exactly two nodes.

Parameters:

ds - the data set, may be null

Returns:

start and end point, or null if the selection does not define a direction

rotationOf

public static double rotationOf(EastNorth from,
                                EastNorth to)

Computes the grid rotation (counter clockwise, in degrees, in the range [0, 90)) for which a grid line is parallel to the given direction.

Parameters:

from - start point

to - end point

Returns:

the rotation in degrees

updateEnabledState

protected void updateEnabledState()

Description copied from class: JosmAction

Override in subclasses to update the enabled state of the action when something in the JOSM state changes, i.e. when a layer is removed or added. See JosmAction.updateEnabledState(Collection) to respond to changes in the collection of selected primitives. Default behavior is empty.

Overrides:

updateEnabledState in class JosmAction

See Also:

JosmAction.updateEnabledState(Collection), JosmAction.initEnabledState(), JosmAction.listenToLayerChange()

updateEnabledState

protected void updateEnabledState(java.util.Collection<? extends OsmPrimitive> selection)

Description copied from class: JosmAction

Override in subclasses to update the enabled state of the action if the collection of selected primitives changes. This method is called with the new selection.

Overrides:

updateEnabledState in class JosmAction

Parameters:

selection - the collection of selected primitives; may be empty, but not null

See Also:

JosmAction.updateEnabledState(), JosmAction.initEnabledState(), JosmAction.listenToSelectionChange()

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent e)