CanvasPixelArray (Google Web Toolkit Javadoc)

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com.google.gwt.canvas.dom.client
Class CanvasPixelArray

java.lang.Object
  com.google.gwt.core.client.JavaScriptObject
      com.google.gwt.canvas.dom.client.CanvasPixelArray

public class CanvasPixelArray
extends JavaScriptObject
extends JavaScriptObject

Array-like object holding the actual image data for an ImageData object. For each pixel, this object contains a red, green, blue and alpha value between 0 and 255 (in this order). Note that we use ints here to represent the data to avoid complexities stemming from bytes being signed in Java.

Experimental API: This API is still under development and is subject to change.

See Also:: HTML Canvas 2D CanvasPixelArray

Constructor Summary
`protected`	`CanvasPixelArray()`

Method Summary
`int`	`get(int i)` Returns the data value at index i.
`int`	`getLength()` Returns the length of the array.
`void`	`set(int i, int value)` Sets the data value at position i to the given value.

Methods inherited from class com.google.gwt.core.client.JavaScriptObject
`cast, createArray, createFunction, createObject, equals, hashCode, toSource, toString`

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

Constructor Detail

CanvasPixelArray

protected CanvasPixelArray()

Method Detail

get

public final int get(int i)

Returns the data value at index i.

Parameters:: i - the data index
Returns:: the data value

getLength

public final int getLength()

Returns the length of the array.

Returns:: the array length

set

public final void set(int i,
                      int value)

Sets the data value at position i to the given value. Most browsers will clamp this value to the range 0...255, but that is not enforced in this implementation.

Parameters:: i - index to set.; value - value to set (use values from 0 to 255)