totalcross.ui.image

Class BulkImageLoader

java.lang.Object

java.lang.Thread

totalcross.ui.image.BulkImageLoader

All Implemented Interfaces:

java.lang.Runnable

public class BulkImageLoader
extends java.lang.Thread

This class is used to load and release lots of images when used for a book, for example. It loads the images in a thread and release old images to keep memory usage low. Use it with DynImage. See the ImageBook and the Product Store samples.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	BulkImageLoader.DynImage class used to show the Image on screen.

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field and Description
java.lang.String[]	arqs
int	current
Image[]	loaded
int	pagesInMemory
int	pageSize
boolean	running

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor and Description
BulkImageLoader(int pagesInMemory, int pageSize, java.lang.String imageFolder, java.lang.String[] arqs)

Method Summary

Modifier and Type	Method and Description
Image	getImage(int idx) Returns the image at the given index
void	run()

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

running

public boolean running

pagesInMemory

public int pagesInMemory

pageSize

public int pageSize

current

public int current

arqs

public java.lang.String[] arqs

loaded

public Image[] loaded

Constructor Detail

BulkImageLoader

public BulkImageLoader(int pagesInMemory,
                       int pageSize,
                       java.lang.String imageFolder,
                       java.lang.String[] arqs)

Method Detail

run

public void run()

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread

getImage

public Image getImage(int idx)
               throws IOException

Returns the image at the given index

Throws:

IOException