Class PixelRectangle

java.lang.Object
  PixelRectangle

public class PixelRectangle
extends java.lang.Object

PixelRectangle - a rectangular area of pixels.

To represent rectangular groups of pixels as a single entitly, two things are needed:

• an array of ints, the pixels, and
• the width of the rectangle, the number of columns in a row.

Field Summary

int[]	pixels Array of individual pixels represented as ints, 4 bytes: opacity, red, green, and blue.
int	width The number of columns in a row of pixels in the array.

Constructor Summary

PixelRectangle(int[] pixels, int numCol)
Instantiate a PixelRectangle given its constituents.

Method Summary

java.awt.Image	toImage() Create an Image to match the array of picture's pixels.
java.lang.String	toString() Override Object.toString() for debugging.

Methods inherited from class java.lang.Object

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

Field Detail

pixels

public int[] pixels

Array of individual pixels represented as ints, 4 bytes: opacity, red, green, and blue.

width

public int width

The number of columns in a row of pixels in the array.

Constructor Detail

PixelRectangle

public PixelRectangle(int[] pixels,
                      int numCol)

Instantiate a PixelRectangle given its constituents.

Parameters:

pixels - array of individual pixels in int format

numCol - the number of columns making up a single row of pixels

Method Detail

toImage

public java.awt.Image toImage()

Create an Image to match the array of picture's pixels. AWT Graphics only supports painting of Image objects, no kind of BitBlt for arrays of pixel values (?who know's why?)

toString

public java.lang.String toString()

Override Object.toString() for debugging. Return String with PixelRectangle dimensions in square brackets and the first three pixel values enclosed in squiggle brackets, broken down into a,r,g,b components.

Overrides:

toString in class java.lang.Object