org.cruxframework.crux.core.client.image
Class ImageProcessor

java.lang.Object
  org.cruxframework.crux.core.client.image.ImageProcessor

public class ImageProcessor
extends Object

An Image processor

Author:

Thiago da Rosa de Bustamante

Nested Class Summary

static interface	ImageProcessor.ImageCreateAndLoadHandler
static interface	ImageProcessor.ImageLoadHandler

Constructor Summary

protected

ImageProcessor() Constructor

Method Summary

Blob	asGif() Export content image as a GIF file.
Blob	asJpeg(double quality) Export content image as a JPEG file.
Blob	asPng() Export content image as a PNG file.
static ImageProcessor	createIfSupported() If the current browser supports, create a new ImageProcessor
static void	createIfSupportedAndLoadImage(Blob image, ImageProcessor.ImageCreateAndLoadHandler handler) Create ImageProcessor instance and automatically loads the image.
static void	createIfSupportedAndLoadImage(String url, ImageProcessor.ImageCreateAndLoadHandler handler) Create ImageProcessor instance and automatically loads the image.
void	ensureMaxSize(int maxHeight, int maxWidth, boolean keepProportions) Ensure a max size for the image
static boolean	isSupported() Check if browser supports this feature
void	loadImage(Blob image, ImageProcessor.ImageLoadHandler handler) Loads an image to the processor.
void	loadImage(String url, ImageProcessor.ImageLoadHandler handler) Loads an image to the processor.
void	resize(int width, int height) Resize the internal image

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageProcessor

protected ImageProcessor()

Constructor

Method Detail

createIfSupportedAndLoadImage

public static void createIfSupportedAndLoadImage(Blob image,
                                                 ImageProcessor.ImageCreateAndLoadHandler handler)

Create ImageProcessor instance and automatically loads the image.

Parameters:

file - Image File

handler - Called whem image is completely loaded

createIfSupportedAndLoadImage

public static void createIfSupportedAndLoadImage(String url,
                                                 ImageProcessor.ImageCreateAndLoadHandler handler)

Create ImageProcessor instance and automatically loads the image.

Parameters:

url - Image URL

handler - Called whem image is completely loaded

loadImage

public void loadImage(String url,
                      ImageProcessor.ImageLoadHandler handler)

Loads an image to the processor.

Parameters:

url - Image URL

handler - Called whem image is completely loaded

loadImage

public void loadImage(Blob image,
                      ImageProcessor.ImageLoadHandler handler)

Loads an image to the processor.

Parameters:

file - Image File

handler - Called whem image is completely loaded

ensureMaxSize

public void ensureMaxSize(int maxHeight,
                          int maxWidth,
                          boolean keepProportions)

Ensure a max size for the image

Parameters:

maxHeight -

maxWidth -

keepProportions -

resize

public void resize(int width,
                   int height)

Resize the internal image

Parameters:

width -

height -

asJpeg

public Blob asJpeg(double quality)

Export content image as a JPEG file.

Parameters:

quality - JPEG quality. It ranges from 0.0 to 1.0

Returns:

asPng

public Blob asPng()

Export content image as a PNG file.

Returns:

asGif

public Blob asGif()

Export content image as a GIF file.

Returns:

isSupported

public static boolean isSupported()

Check if browser supports this feature

Returns:

createIfSupported

public static ImageProcessor createIfSupported()

If the current browser supports, create a new ImageProcessor

Returns: