Package org.xwt

The core XWT engine classes.

See:
Description

Interface Summary

VectorGraphics.Paint

Class Summary

Font
HTTP	This object encapsulates a *single* HTTP connection.
HTTP.Proxy	encapsulates most of the proxy logic; some is shared in HTTP.java
HTTP.Proxy.Authorization
HTTP.Proxy.NTLM	An implementation of Microsoft's proprietary NTLM authentication protocol.
HTTP.Proxy.ProxyAutoConfigRootScope
Main	Entry point for the XWT Engine; handles splash screen, initial xwar loading, and argument processing
Picture	The in-memory representation of a PNG or GIF image.
PixelBuffer	A block of pixels which can be drawn on.
Platform	Abstracts away the small irregularities in JVM implementations.
Res	base class for XWT resources
Res.Builtin	the Builtin resource
Res.ByteArray	byte arrays
Res.Cab	"unwrap" a Cab archive
Res.CachedRes	subclass from this if you want a CachedInputStream for each path
Res.File	a file
Res.Graft	shadow resource which replaces the graft
Res.HTTP	HTTP or HTTPS resource
Res.ProgressWatcher	shadow resource which replaces the graft
Res.Ref	what you get when you reference a subresource
Res.Zip	"unwrap" a Zip archive
Scheduler	Implements cooperative multitasking
Scheduler.Task
Surface	A Surface, as described in the XWT Reference.
Surface.DoubleBufferedSurface
Template	Encapsulates a template node (the <template/> element of a .xwt file, or any child element thereof).
TinySSL	TinySSL: a tiny SSL implementation in Java, built on the bouncycastle.org lightweight crypto library.
Trap	This class encapsulates a single trap placed on a given node.
VectorGraphics	XWT's fully conformant Static SVG Viewer; see SVG spec, section G.7
VectorGraphics.Affine	an affine transform; all operations are destructive
VectorGraphics.PathTokenizer
VectorGraphics.RasterPath	a vector path
VectorGraphics.SingleColorPaint
VectorGraphics.VectorPath	an abstract path; may contain splines and arcs
XWT	Singleton class that provides all functionality in the xwt.* namespace

Exception Summary

TinySSL.SSLException

Package org.xwt Description

The core XWT engine classes.

Interfacing with other code

This engine is not meant to be used as a library or to interface with any other code. Because of this, all classes and methods have package (nonpublic) access, except where interpackage calls or reflection demand that they be public. Authors of other software should NEVER depend on any of these APIs.

An important note about Threads

All operations are single-threaded, except sleep(), yield(), xmlrpc calls, and MessageQueue message loop. That means that while one thread is rendering or executing a script, no other thread can be rendering or executing a script.

For performance reasons, we do not enforce this single-threadedness with Java synchronization primitives. If you change the engine code, be very careful not to violate this invariant. In general, you should only render or execute JavaScripts if (Thread.currentThread() == MessageQueue.singleton). The only exception is instances of ThreadMessage -- they include logic to block the MessageQueue thread on a semaphore, execute some javascript, and unblock the MessageQueue thread once the javascript has returned or performed some blocking operation. Be especially careful not to manipulate instances of Box from within the AWT thread. @see MessageQueue ThreadMessage