net.refractions.udig.tools.edit.behaviour
Class MoveVertexBehaviour

java.lang.Object
  net.refractions.udig.tools.edit.behaviour.MoveVertexBehaviour

All Implemented Interfaces:

EventBehaviour, LockingBehaviour

Direct Known Subclasses:

MoveGeometryBehaviour

public class MoveVertexBehaviour
extends java.lang.Object
implements EventBehaviour, LockingBehaviour

Mode that moves Vertices

Requirements:

• currentGeom!=null;
• currentState is MODIFIED or NONE
• eventType is DRAGGED
• no modifiers
• MouseTracker.getDragStarted() is over selected vertex (if not all vertices are selected)
• If all vertices are selected then MouseTracker.getDragStarted() must be within the geometry.

Action:

• move the vertices selected by VertexSelectorBehaviour to location in net.refractions.udig.project.ui.render.displayAdapter.MapMouseEvent
• Locks the EditTool handler until mouse is released so other behaviours won't interfere

Since:

1.1.0

Author:

jones

Nested Class Summary

class

MoveVertexBehaviour.PositionTracker

Constructor Summary

MoveVertexBehaviour()

Method Summary

protected void	doMove(int deltaX, int deltaY, EditToolHandler handler, EditBlackboard editBlackboard2)
UndoableMapCommand	getCommand(EditToolHandler handler, MapMouseEvent e, EventType eventType) The action to be performed by this EventBehaviour.
java.lang.Object	getKey(EditToolHandler handler) If the object returned by getKey() is the same as the object that the EditToolHandler has as its lock this object may unlock the EditToolHandler and is also permitted to run.
protected Selection	getPointsToMove(EditToolHandler handler, EditBlackboard blackboard) Returns the points that will be moved.
void	handleError(EditToolHandler handler, java.lang.Throwable error, UndoableMapCommand command) This method is called if an exception occurs during the execution of the run method.
protected boolean	isSnappingValid() Returns true if snapping should be used.
boolean	isValid(EditToolHandler handler, MapMouseEvent e, EventType eventType) Called to determine whether this EventBehaviour is applicable and should be run.

Methods inherited from class java.lang.Object

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

Constructor Detail

MoveVertexBehaviour

public MoveVertexBehaviour()

Method Detail

isValid

public boolean isValid(EditToolHandler handler,
                       MapMouseEvent e,
                       EventType eventType)

Description copied from interface: EventBehaviour

Called to determine whether this EventBehaviour is applicable and should be run.

Specified by:

isValid in interface EventBehaviour

Parameters:

handler - handler that calls this Behaviour

e - mouse event that just occurred.

eventType - the type of event that just occurred

Returns:

true if this mode is applicable and should be run.

getCommand

public UndoableMapCommand getCommand(EditToolHandler handler,
                                     MapMouseEvent e,
                                     EventType eventType)

Description copied from interface: EventBehaviour

The action to be performed by this EventBehaviour. This action takes place in the event thread so it must perform VERY quickly.

Specified by:

getCommand in interface EventBehaviour

Parameters:

handler - handler that calls this Behaviour

e - Event that occurred.

eventType - The type of event that has occurred

Returns:

Command that will be executed in order to perform the behaviour

doMove

protected void doMove(int deltaX,
                      int deltaY,
                      EditToolHandler handler,
                      EditBlackboard editBlackboard2)

isSnappingValid

protected boolean isSnappingValid()

Returns true if snapping should be used.

Returns:

getPointsToMove

protected Selection getPointsToMove(EditToolHandler handler,
                                    EditBlackboard blackboard)

Returns the points that will be moved.

Parameters:

handler -

Returns:

the points that will be moved.

handleError

public void handleError(EditToolHandler handler,
                        java.lang.Throwable error,
                        UndoableMapCommand command)

Description copied from interface: EventBehaviour

This method is called if an exception occurs during the execution of the run method.

This method should

1. Rollback the changes made during the run method
2. Log the error in the plugin's log

Specified by:

handleError in interface EventBehaviour

Parameters:

handler - handler that calls this Behaviour

error - Error that occurred

command - Command retrieved from getCommandMethod. May be null if exception occurred while executing getCommand();

getKey

public java.lang.Object getKey(EditToolHandler handler)

Description copied from interface: LockingBehaviour

If the object returned by getKey() is the same as the object that the EditToolHandler has as its lock this object may unlock the EditToolHandler and is also permitted to run.

Specified by:

getKey in interface LockingBehaviour

Parameters:

handler - handler that is calling getKey.

Returns:

the object that this behaviour uses as a key.