com.gargoylesoftware.htmlunit.javascript.host.canvas.rendering

Class AwtRenderingBackend

java.lang.Object

com.gargoylesoftware.htmlunit.javascript.host.canvas.rendering.AwtRenderingBackend

All Implemented Interfaces:

RenderingBackend

public class AwtRenderingBackend
extends Object
implements RenderingBackend

The default implementation of RenderingBackend.

Author:

Ronald Brill

Constructor Summary

Constructors

Constructor and Description
AwtRenderingBackend(int imageWidth, int imageHeight) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	drawImage(ImageReader imageReader, int dxI, int dyI) Draws images onto the context.
String	encodeToString(String type) Constructs a base64 encoded string out of the image data.
void	fillRect(int x, int y, int w, int h) Paints the specified rectangular area.
byte[]	getBytes(int width, int height, int sx, int sy) Creates a byte array containing the (4) color values of all pixels.
void	setFillStyle(String fillStyle) Sets the fillStyle property.

Methods inherited from class java.lang.Object

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

Constructor Detail

AwtRenderingBackend

public AwtRenderingBackend(int imageWidth,
                   int imageHeight)

Constructor.

Parameters:

imageWidth - the width

imageHeight - the height

Method Detail

setFillStyle

public void setFillStyle(String fillStyle)

Sets the fillStyle property.

Specified by:

setFillStyle in interface RenderingBackend

Parameters:

fillStyle - the fillStyle property

fillRect

public void fillRect(int x,
            int y,
            int w,
            int h)

Paints the specified rectangular area.

Specified by:

fillRect in interface RenderingBackend

Parameters:

x - the x

y - the y

w - the width

h - the height

drawImage

public void drawImage(ImageReader imageReader,
             int dxI,
             int dyI)
               throws IOException

Draws images onto the context.

Specified by:

drawImage in interface RenderingBackend

Parameters:

imageReader - the reader to read the image from 8the first one)

dxI - the x coordinate of the starting point (top left)

dyI - the y coordinate of the starting point (top left)

Throws:

IOException - in case o problems

getBytes

public byte[] getBytes(int width,
              int height,
              int sx,
              int sy)

Creates a byte array containing the (4) color values of all pixels.

Specified by:

getBytes in interface RenderingBackend

Parameters:

width - the width

height - the height

sx - start point x

sy - start point y

Returns:

the bytes

encodeToString

public String encodeToString(String type)
                      throws IOException

Constructs a base64 encoded string out of the image data.

Specified by:

encodeToString in interface RenderingBackend

Parameters:

type - the name of the image format

Returns:

the base64 encoded string

Throws:

IOException - in case o problems