org.jhotdraw.draw
Class BezierScaleHandle

java.lang.Object
  org.jhotdraw.draw.AbstractHandle
      org.jhotdraw.draw.BezierScaleHandle

All Implemented Interfaces:

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

public class BezierScaleHandle
extends AbstractHandle

A Handle to scale and rotate a BezierFigure. Pressing the alt key or the shift key while manipulating the handle restricts the handle to only rotate the BezierFigure.

Version:

2.0 2008-05-11 Handle attributes are now retrieved from drawing editor.
1.0 16. Juni 2006 Created.

Author:

Werner Randelshofer.

Field Summary

private java.awt.geom.Point2D.Double	center
private java.awt.Point	location
private java.lang.Object	restoreData
private double	startLength
private double	startTheta
private java.awt.geom.AffineTransform	transform

Fields inherited from class org.jhotdraw.draw.AbstractHandle

listenerList, view

Constructor Summary

BezierScaleHandle(BezierFigure owner)
Creates a new instance.

Method Summary

protected java.awt.Rectangle	basicGetBounds()
void	draw(java.awt.Graphics2D g) Draws this handle.
private BezierFigure	getBezierFigure()
java.awt.Point	getLocation()
private java.awt.geom.Point2D.Double	getOrigin()
boolean	isCombinableWith(Handle h) Returns true, if the given handle is an instance of the same class or of a subclass of this handle,.
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.

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, getCursor, getDrawingArea, getEditor, getHandlesize, getOwner, getToolTipText, getView, invalidate, 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

Field Detail

location

private java.awt.Point location

restoreData

private java.lang.Object restoreData

transform

private java.awt.geom.AffineTransform transform

center

private java.awt.geom.Point2D.Double center

startTheta

private double startTheta

startLength

private double startLength

Constructor Detail

BezierScaleHandle

public BezierScaleHandle(BezierFigure owner)

Creates a new instance.

Method Detail

isCombinableWith

public boolean isCombinableWith(Handle h)

Description copied from class: AbstractHandle

Returns true, if the given handle is an instance of the same class or of a subclass of this handle,.

Specified by:

isCombinableWith in interface Handle

Overrides:

isCombinableWith in class AbstractHandle

draw

public void draw(java.awt.Graphics2D g)

Draws this handle.

Specified by:

draw in interface Handle

Overrides:

draw in class AbstractHandle

basicGetBounds

protected java.awt.Rectangle basicGetBounds()

Specified by:

basicGetBounds in class AbstractHandle

getLocation

public java.awt.Point getLocation()

getBezierFigure

private BezierFigure getBezierFigure()

getOrigin

private java.awt.geom.Point2D.Double getOrigin()

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