org.jhotdraw.draw
Class MoveHandle

java.lang.Object
  org.jhotdraw.draw.AbstractHandle
      org.jhotdraw.draw.LocatorHandle
          org.jhotdraw.draw.MoveHandle

All Implemented Interfaces:

java.awt.event.KeyListener, java.util.EventListener, FigureListener, Handle

public class MoveHandle
extends LocatorHandle

A handle that changes the location of the owning figure, if the figure is transformable.

Version:

2.1 2008-02-28 Only move a figure, if it is transformable.
2.0 2006-01-14 Changed to support double precision coordinates.
1.0 2003-12-01 Derived from JHotDraw 5.4b1.

Author:

Werner Randelshofer

Field Summary

Fields inherited from class org.jhotdraw.draw.AbstractHandle

listenerList, view

Constructor Summary

MoveHandle(Figure owner, Locator locator)
Creates a new instance.

Method Summary

static void	addMoveHandles(Figure f, java.util.Collection<Handle> handles) Creates handles for each corner of a figure and adds them to the provided collection.
void	draw(java.awt.Graphics2D g) Draws this handle.
static Handle	east(Figure owner)
java.awt.Cursor	getCursor() Returns a cursor for the handle.
static Handle	north(Figure owner)
static Handle	northEast(Figure owner)
static Handle	northWest(Figure owner)
static Handle	south(Figure owner)
static Handle	southEast(Figure owner)
static Handle	southWest(Figure owner)
void	trackEnd(java.awt.Point anchor, java.awt.Point lead, int modifiersEx) Tracks the end of the interaction.
void	trackStart(java.awt.Point anchor, int modifiersEx) Tracks the start of the interaction.
void	trackStep(java.awt.Point anchor, java.awt.Point lead, int modifiersEx) Tracks a step of the interaction.
static Handle	west(Figure owner)

Methods inherited from class org.jhotdraw.draw.LocatorHandle

basicGetBounds, getLocation, getLocationOnDrawing

Methods inherited from class org.jhotdraw.draw.AbstractHandle

addHandleListener, areaInvalidated, attributeChanged, contains, createSecondaryHandles, dispose, drawCircle, drawDiamond, drawRectangle, figureAdded, figureChanged, figureHandlesChanged, figureRemoved, figureRequestRemove, fireAreaInvalidated, fireHandleRequestRemove, fireHandleRequestSecondaryHandles, fireUndoableEditHappened, getBounds, getDrawingArea, getHandlesize, getOwner, getToolTipText, getView, invalidate, isCombinableWith, keyPressed, keyReleased, keyTyped, removeHandleListener, setView, trackDoubleClick, updateBounds, viewTransformChanged

Methods inherited from class java.lang.Object

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

Constructor Detail

MoveHandle

public MoveHandle(Figure owner,
                  Locator locator)

Creates a new instance.

Method Detail

addMoveHandles

public static void addMoveHandles(Figure f,
                                  java.util.Collection<Handle> handles)

Creates handles for each corner of a figure and adds them to the provided collection.

draw

public void draw(java.awt.Graphics2D g)

Draws this handle.

If the figure is transformable, the handle is drawn as a filled rectangle. If the figure is not transformable, the handle is drawn as an unfilled rectangle.

Specified by:

draw in interface Handle

Overrides:

draw in class AbstractHandle

getCursor

public java.awt.Cursor getCursor()

Returns a cursor for the handle.

Specified by:

getCursor in interface Handle

Overrides:

getCursor in class AbstractHandle

Returns:

Returns a move cursor, if the figure is transformable. Returns a default cursor otherwise.

trackStart

public void trackStart(java.awt.Point anchor,
                       int modifiersEx)

Description copied from interface: Handle

Tracks the start of the interaction. The default implementation does nothing.

Parameters:

anchor - the position where the interaction started

trackStep

public void trackStep(java.awt.Point anchor,
                      java.awt.Point lead,
                      int modifiersEx)

Description copied from interface: Handle

Tracks a step of the interaction.

Parameters:

anchor - the position where the interaction started

lead - the current position

trackEnd

public void trackEnd(java.awt.Point anchor,
                     java.awt.Point lead,
                     int modifiersEx)

Description copied from interface: Handle

Tracks the end of the interaction.

Parameters:

anchor - the position where the interaction started

lead - the current position

south

public static Handle south(Figure owner)

southEast

public static Handle southEast(Figure owner)

southWest

public static Handle southWest(Figure owner)

north

public static Handle north(Figure owner)

northEast

public static Handle northEast(Figure owner)

northWest

public static Handle northWest(Figure owner)

east

public static Handle east(Figure owner)

west

public static Handle west(Figure owner)