org.jacorb.demo.notification.whiteboard
Class PixelImage

java.lang.Object
  org.jacorb.demo.notification.whiteboard.PixelImage

Direct Known Subclasses:

BrushSizePixelImage

public class PixelImage
extends Object

PixelImage.java A pixel-based image.

Author:

Nicolas Noffke, Torsten Fink

Field Summary

protected int[]

m_pixels

Constructor Summary

PixelImage(int width, int height)
The constructor.

Method Summary

void	clearAll()
void	drawLine(int x0, int y0, int x1, int y1, int red, int green, int blue) draws a line in the image.
int[]	getPixelBuffer() gets the pixel buffer of this image.
ImageProducer	getProducer() gets the ImageProducer for this image.
void	setPixel(int x, int y, Color color) sets a pixel to a specific color.
void	setPixel(int x, int y, int red, int green, int blue) sets a pixel to a specific color.
void	setPixelBuffer(int[] data)

Methods inherited from class java.lang.Object

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

Field Detail

m_pixels

protected int[] m_pixels

Constructor Detail

PixelImage

public PixelImage(int width,
                  int height)

The constructor. Set up buffer.

Parameters:

height - the images height.

width - the images width.

Method Detail

setPixel

public void setPixel(int x,
                     int y,
                     int red,
                     int green,
                     int blue)

sets a pixel to a specific color.

Parameters:

x - the pixels x value.

y - the pixels y value.

red - the pixels red value.

green - the pixels green value.

blue - the pixels blue value.

setPixel

public void setPixel(int x,
                     int y,
                     Color color)

sets a pixel to a specific color.

Parameters:

x - the pixels x value.

y - the pixels y value.

color - the pixels color.

getProducer

public ImageProducer getProducer()

gets the ImageProducer for this image.

Returns:

the ImageProducer for this image.

getPixelBuffer

public int[] getPixelBuffer()

gets the pixel buffer of this image.

Returns:

the pixel buffer.

setPixelBuffer

public void setPixelBuffer(int[] data)

drawLine

public void drawLine(int x0,
                     int y0,
                     int x1,
                     int y1,
                     int red,
                     int green,
                     int blue)

draws a line in the image. The incremental line scan-conversion algorithm is used (see "Computer Graphics"; Foley, vanDam,Feiner,Hughes). (x0,y0) is the starting point, (x1,y1) the ending point.

clearAll

public void clearAll()