erland.util
Class SubImageHandler

java.lang.Object
  erland.util.SubImageHandler

public class SubImageHandler
extends Object

Implements a image handler which makes it easier to extract and drag sub images from a large image

Author:

Erland Isaksson

Constructor Summary

SubImageHandler(Image image, int width, int height, int noOfX, int noOfY)
Creates a image handler which makes it possible to extract sub images from a main image

SubImageHandler(Image image, int width, int height, int noOfX, int noOfY, int drawOffsetX, int drawOffsetY)
Creates a image handler which makes it possible to extract sub images from a main image.

Method Summary

void	drawImage(Graphics g, int subimage, int x, int y) Draw a specific subimage
Graphics	getGraphics(int subimage) Get a Graphics object for the specified sub image
Image	getImage() Get the main image which contains all sub images

Methods inherited from class java.lang.Object

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

Constructor Detail

SubImageHandler

public SubImageHandler(Image image,
                       int width,
                       int height,
                       int noOfX,
                       int noOfY)

Creates a image handler which makes it possible to extract sub images from a main image

Parameters:

image - The main image to extract sub images from

width - The width of each subimage

height - The height of each subimage

noOfX - Number of sub images on each row

noOfY - Number of rows with sub images

SubImageHandler

public SubImageHandler(Image image,
                       int width,
                       int height,
                       int noOfX,
                       int noOfY,
                       int drawOffsetX,
                       int drawOffsetY)

Creates a image handler which makes it possible to extract sub images from a main image. It is also possible to select an offset which should be added before drawing the image.

Parameters:

image - The main image to extract sub images from

width - The width of each subimage

height - The height of each subimage

noOfX - Number of sub images on each row

noOfY - Number of rows with sub images

drawOffsetX - Number of pixels to add to x coordinate before drawing

drawOffsetY - Number of pixels to add to y coordinate before drawing

Method Detail

drawImage

public void drawImage(Graphics g,
                      int subimage,
                      int x,
                      int y)

Draw a specific subimage

Parameters:

g - The Graphics object to draw on

subimage - The number of the sub image to draw

x - The x position to draw sub image on

y - The y position to draw sub image on

getImage

public Image getImage()

Get the main image which contains all sub images

Returns:

The main image

getGraphics

public Graphics getGraphics(int subimage)

Get a Graphics object for the specified sub image

Parameters:

subimage - The sub image to get a Graphics object for

Returns:

A Graphics object for the subimage