com.eteks.awt
Class PJAImage

java.lang.Object
  |
  +--java.awt.Image
        |
        +--com.eteks.awt.PJAImage

public class PJAImage

extends Image

Pure Java AWT Image implementation. This image stores in a buffer an offscreen image using default RGB color model or another indexed color model.

Since:

PJA1.0

Author:

Emmanuel Puybaret

Inner Class Summary

private class	PJAImage.NBProducer
private class	PJAImage.PJAConsumer

Field Summary

private int	availableInfo
private ColorModel	colorModel
private int	height
private ImageProducer	initProducer
private PJAGraphicsManager	manager
private Object	pixels
private boolean	productionStarted
private Hashtable	properties
private int	width

Fields inherited from class java.awt.Image

SCALE_AREA_AVERAGING, SCALE_DEFAULT, SCALE_FAST, SCALE_REPLICATE, SCALE_SMOOTH, UndefinedProperty

Constructor Summary

PJAImage(ImageProducer producer)
Creates an initial image with a producer.

PJAImage(int width, int height)
Creates an empty image of width x height pixels.

PJAImage(int width, int height, ColorModel colorModel)
Creates an empty image of width x height pixels.

Method Summary

(package private) void	()
protected int	check(ImageObserver observer)
void	flush() java.awt.Image implementation.
ColorModel	getColorModel() Returns this image's color model
Graphics	getGraphics() java.awt.Image implementation.
protected int	getHeight()
int	getHeight(ImageObserver observer) java.awt.Image implementation.
protected int	getPixelColor(int x, int y) Gets the color at the point (x,y).
protected int[]	getPixels() Gets the array used to store the pixels of this image.
protected Object	getPixelsArray() Gets the array used to store the pixels of this image.
Object	getProperty(String name, ImageObserver observer) java.awt.Image implementation.
ImageProducer	getSource() java.awt.Image implementation.
protected int	getWidth()
int	getWidth(ImageObserver observer) java.awt.Image implementation.
private void	loadInitImage(boolean wait, ImageObserver observer)
protected boolean	prepare(ImageObserver observer)
protected void	setPixelColor(int x, int y, int ARGB) Sets the color at the point (x,y).
void	sync() Synchronizes the image loading.

Methods inherited from class java.awt.Image

getScaledInstance

Methods inherited from class java.lang.Object

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

Field Detail

width

private int width

height

private int height

availableInfo

private int availableInfo

pixels

private Object pixels

colorModel

private ColorModel colorModel

properties

private Hashtable properties

productionStarted

private boolean productionStarted

initProducer

private ImageProducer initProducer

manager

private PJAGraphicsManager manager

Constructor Detail

PJAImage

public PJAImage(ImageProducer producer)

Creates an initial image with a producer.

Parameters:

producer - An instance of a class that implements ImagePoducer.

PJAImage

public PJAImage(int width,
                int height)

Creates an empty image of width x height pixels. The image is created transparent.

See Also:

PJAToolkit

PJAImage

public PJAImage(int width,
                int height,
                ColorModel colorModel)

Creates an empty image of width x height pixels. The image is created transparent with colorModel color model.

Since:

PJA2.3

Method Detail

void ()

Overrides:

in class Image

getProperty

public Object getProperty(String name,
                          ImageObserver observer)

java.awt.Image implementation.

Overrides:

getProperty in class Image

See Also:

Image

getWidth

public int getWidth(ImageObserver observer)

java.awt.Image implementation.

Overrides:

getWidth in class Image

See Also:

Image

getHeight

public int getHeight(ImageObserver observer)

java.awt.Image implementation.

Overrides:

getHeight in class Image

See Also:

Image

getSource

public ImageProducer getSource()

java.awt.Image implementation.

Overrides:

getSource in class Image

See Also:

Image

getGraphics

public Graphics getGraphics()

java.awt.Image implementation. Contrary to JDK default behavior, PJA allows to retrieve an instance of Graphics on images created with a producer. This enables to draw in transparent images.

Overrides:

getGraphics in class Image

See Also:

Image

getColorModel

public ColorModel getColorModel()

Returns this image's color model

Returns:

the image's color model. null means the default color model.

Since:

PJA2.3

flush

public void flush()

java.awt.Image implementation.

Overrides:

flush in class Image

See Also:

Image

check

protected int check(ImageObserver observer)

prepare

protected boolean prepare(ImageObserver observer)

getWidth

protected int getWidth()

getHeight

protected int getHeight()

getPixels

protected int[] getPixels()

Gets the array used to store the pixels of this image.

Returns:

an array of int or null if the array contains byte or if the image was flushed.

getPixelsArray

protected Object getPixelsArray()

Gets the array used to store the pixels of this image.

Returns:

an array of int or byte.

Since:

PJA2.3

getPixelColor

protected int getPixelColor(int x,
                            int y)

Gets the color at the point (x,y).

Parameters:

x - the point coordinates.

y -

Returns:

the color of the point in default RGB model.

Since:

PJA2.0

setPixelColor

protected void setPixelColor(int x,
                             int y,
                             int ARGB)

Sets the color at the point (x,y).

Parameters:

x - the point coordinates.

y -

ARGB - the color of the point in default RGB model.

Since:

PJA2.0

sync

public void sync()

Synchronizes the image loading.

Since:

PJA2.0

loadInitImage

private void loadInitImage(boolean wait,
                           ImageObserver observer)