org.jhotdraw.draw.handle
Class BezierControlPointHandle

java.lang.Object
  org.jhotdraw.draw.handle.AbstractHandle
      org.jhotdraw.draw.handle.BezierControlPointHandle

All Implemented Interfaces:

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

public class BezierControlPointHandle
extends AbstractHandle

A Handle which allows to interactively change a control point of a bezier path.

Version:

$Id: BezierControlPointHandle.java -1 $

Author:

Werner Randelshofer

Field Summary

protected int	controlPointIndex
protected int	index

Fields inherited from class org.jhotdraw.draw.handle.AbstractHandle

listenerList, view

Constructor Summary

BezierControlPointHandle(BezierFigure owner, int index, int coord)
Creates a new instance.

BezierControlPointHandle(BezierFigure owner, int index, int coord, Figure transformOwner)

Method Summary

protected java.awt.Rectangle	basicGetBounds()
void	dispose() Disposes the resources aquired by the handler.
void	draw(java.awt.Graphics2D g) Draws this handle.
protected BezierFigure	getBezierFigure()
protected BezierPath.Node	getBezierNode()
protected java.awt.Point	getLocation()
BezierFigure	getOwner() Returns the owner of this handle.
java.lang.String	getToolTipText(java.awt.Point p) Returns a tooltip for the specified location.
protected Figure	getTransformOwner()
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	keyPressed(java.awt.event.KeyEvent evt)
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.handle.AbstractHandle

addHandleListener, areaInvalidated, attributeChanged, contains, createSecondaryHandles, drawCircle, drawDiamond, drawRectangle, figureAdded, figureChanged, figureHandlesChanged, figureRemoved, figureRequestRemove, fireAreaInvalidated, fireHandleRequestRemove, fireHandleRequestSecondaryHandles, fireUndoableEditHappened, getBounds, getCursor, getDrawingArea, getEditor, getHandlesize, getView, invalidate, keyReleased, keyTyped, removeHandleListener, setToolTipText, setView, trackDoubleClick, updateBounds, viewTransformChanged

Methods inherited from class java.lang.Object

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

Field Detail

index

protected int index

controlPointIndex

protected int controlPointIndex

Constructor Detail

BezierControlPointHandle

public BezierControlPointHandle(BezierFigure owner,
                                int index,
                                int coord)

Creates a new instance.

BezierControlPointHandle

public BezierControlPointHandle(BezierFigure owner,
                                int index,
                                int coord,
                                Figure transformOwner)

Method Detail

dispose

public void dispose()

Description copied from interface: Handle

Disposes the resources aquired by the handler.

Specified by:

dispose in interface Handle

Overrides:

dispose in class AbstractHandle

getBezierFigure

protected BezierFigure getBezierFigure()

getTransformOwner

protected Figure getTransformOwner()

getLocation

protected java.awt.Point getLocation()

getBezierNode

protected BezierPath.Node getBezierNode()

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

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

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

getToolTipText

public java.lang.String getToolTipText(java.awt.Point p)

Description copied from class: AbstractHandle

Returns a tooltip for the specified location. By default, AbstractHandle returns null.

Specified by:

getToolTipText in interface Handle

Overrides:

getToolTipText in class AbstractHandle

getOwner

public BezierFigure getOwner()

Description copied from interface: Handle

Returns the owner of this handle.

Specified by:

getOwner in interface Handle

Overrides:

getOwner in class AbstractHandle

keyPressed

public void keyPressed(java.awt.event.KeyEvent evt)

Specified by:

keyPressed in interface java.awt.event.KeyListener

Overrides:

keyPressed in class AbstractHandle