jview
Class JViewportCanvas.ViewportKey

java.lang.Object
  jview.JViewportCanvas.ViewportKey

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

JObjectComponent.ObjectKey

Enclosing class:

JViewportCanvas

public abstract static class JViewportCanvas.ViewportKey
extends Object
implements Serializable

The class that allows selecting of only a portion of an JViewport . It contains a normalized viewport. It implements Serializable and serializes its mostly non-serializable Rectangle2D (I think its an insult that sun did fix this only in 1.6.3, as it was reported already agains 1.2.2).
The class is abstract to force subclassing

See Also:

Serialized Form

Field Summary

private Rectangle2D

view The normalized view in this tab.

Constructor Summary

protected

JViewportCanvas.ViewportKey(Rectangle2D zoom) Constructs a new key from the tab name and the current zoom.

Method Summary

Rectangle2D	getView() Returns the zoom.
private void	readObject(ObjectInputStream in) To allow serialization, we read the rectangle after the default object as four doubles.
private void	writeObject(ObjectOutputStream out) To allow serialization, we write the rectangle after the default object as four doubles.

Methods inherited from class java.lang.Object

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

Field Detail

view

private transient Rectangle2D view

The normalized view in this tab. Transient to allow serialize.

Constructor Detail

JViewportCanvas.ViewportKey

protected JViewportCanvas.ViewportKey(Rectangle2D zoom)

Constructs a new key from the tab name and the current zoom.

Method Detail

getView

public Rectangle2D getView()

Returns the zoom.

writeObject

private void writeObject(ObjectOutputStream out)
                  throws IOException

To allow serialization, we write the rectangle after the default object as four doubles.

Throws:

IOException

readObject

private void readObject(ObjectInputStream in)
                 throws IOException,
                        ClassNotFoundException

To allow serialization, we read the rectangle after the default object as four doubles.

Throws:

IOException

ClassNotFoundException