Package eu.webtoolkit.jwt

Class WGLWidget.JavaScriptMatrix4x4

java.lang.Object

eu.webtoolkit.jwt.WGLWidget.JavaScriptMatrix4x4

Enclosing class:

WGLWidget

public static class WGLWidget.JavaScriptMatrix4x4
extends Object

A client-side JavaScript matrix.

A JavaScriptMatrix has methods that make it possible to do client-side calculations on matrices.

Using a WGLWidget.JavaScriptMatrix4x4, GL parameters can be modified without communication with the server. The value of the WGLWidget.JavaScriptMatrix4x4 is updated server-side whenever an event is sent to the server.

Important: only the getJsRef() of the return value from a call to WGLWidget::createJavaScriptMatrix() is a variable name that can be used in custom JavaScript to modify a matrix from external scripts. The getJsRef() of return values of operations refer to unnamed temporary objects - rvalues in C++-lingo.

The WGLWidget.JavaScriptMatrix4x4 is represented in JavaScript as an array of 16 elements. This array represents the values of the matrix in column-major order. It is either a Float32Array or a plain JavaScript array.

Constructor Summary

Constructors

Constructor	Description
JavaScriptMatrix4x4()	Creates a temporarily invalid WGLWidget.JavaScriptMatrix4x4.

Method Summary

Modifier and Type	Method	Description
WGLWidget.JavaScriptMatrix4x4	clone()
int	getId()
String	getJsRef()	Returns the JavaScript reference to this WGLWidget.JavaScriptMatrix4x4.
javax.vecmath.Matrix4f	getValue()	Returns the current server-side value.
boolean	hasContext()	Returns whether this WGLWidget.JavaScriptMatrix4x4 has been assigned to a WGLWidget.
WGLWidget.JavaScriptMatrix4x4	inverted()
boolean	isInitialized()	Returns whether this WGLWidget.JavaScriptMatrix4x4 has been initialized.
WGLWidget.JavaScriptMatrix4x4	multiply(javax.vecmath.Matrix4f m)
WGLWidget.JavaScriptMatrix4x4	transposed()

Methods inherited from class java.lang.Object

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

Constructor Details

JavaScriptMatrix4x4

public JavaScriptMatrix4x4()

Creates a temporarily invalid WGLWidget.JavaScriptMatrix4x4.

Should be added to a WGLWidget with WGLWidget#addJavaScriptMatrix4(), and initialized with WGLWidget#initJavaScriptMatrix4().

Method Details

getId

public int getId()

isInitialized

public boolean isInitialized()

Returns whether this WGLWidget.JavaScriptMatrix4x4 has been initialized.

hasContext

public boolean hasContext()

Returns whether this WGLWidget.JavaScriptMatrix4x4 has been assigned to a WGLWidget.

getJsRef

public String getJsRef()

Returns the JavaScript reference to this WGLWidget.JavaScriptMatrix4x4.

In order to get a valid JavaScript reference, this matrix should have been added to a WGLWidget.

getValue

public javax.vecmath.Matrix4f getValue()

Returns the current server-side value.

Client-side changes to the WGLWidget.JavaScriptMatrix4x4 are automatically synchronized.

inverted

public WGLWidget.JavaScriptMatrix4x4 inverted()

transposed

public WGLWidget.JavaScriptMatrix4x4 transposed()

multiply

public WGLWidget.JavaScriptMatrix4x4 multiply(javax.vecmath.Matrix4f m)

clone

public WGLWidget.JavaScriptMatrix4x4 clone()

Overrides:

clone in class Object