qx.io.image
Class Preloader

java.lang.Object
  qx.core.Object
      qx.core.Target
          qx.io.image.Preloader

public class Preloader
extends Target

This class preloads one image and provides information about this image after it is loaded.

This class should not be used directly. Better use PreloaderManager:

qx.io.image.PreloaderManager.getInstance().create(imageUrl)

Constructor Summary

Preloader()

Preloader(java.lang.String imageUrl)

Method Summary

java.lang.Integer	getHeight() Return the height of the image in pixel.
boolean	getIsPng() Check whether the image format if PNG
java.lang.String	getSource() Get the full URI of the image
java.lang.String	getUri() Get the full URI of the image
java.lang.Integer	getWidth() Return the width of the image in pixel.
boolean	isErroneous() Check whether the loading of the image failed
boolean	isLoaded() Check whether the image is already loaded

Methods inherited from class qx.core.Target

_dispatchEvent, addChangeSelectionListener, addChangeValueListener, addEventListener, addExecuteListener, addJavaEventListener, createDispatchChangeEvent, createDispatchDataEvent, createDispatchEvent, dispatchEvent, hasEventListeners, removeEventListener

Methods inherited from class qx.core.Object

_disposeFields, _disposeObjectDeep, _disposeObjects, base, dispose, get, getDisposed, isDisposed, reset, self, set, toHashCode, toString_

Methods inherited from class java.lang.Object

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

Constructor Detail

Preloader

public Preloader()

Preloader

public Preloader(java.lang.String imageUrl)

Method Detail

getHeight

public java.lang.Integer getHeight()

Return the height of the image in pixel.

getIsPng

public boolean getIsPng()

Check whether the image format if PNG

getSource

public java.lang.String getSource()

Get the full URI of the image

getUri

public java.lang.String getUri()

Get the full URI of the image

getWidth

public java.lang.Integer getWidth()

Return the width of the image in pixel.

isErroneous

public boolean isErroneous()

Check whether the loading of the image failed

isLoaded

public boolean isLoaded()

Check whether the image is already loaded