Package ch.supertomcat.supertomcatutils.image

Class ImageUtil

java.lang.Object

ch.supertomcat.supertomcatutils.image.ImageUtil

public final class ImageUtil
extends Object

Methods for working with Images

Method Summary

Modifier and Type	Method	Description
static BufferedImage	downloadImage(String url, int connectTimeout, int readTimeout)	Downloads an image
static BufferedImage	downloadImage(String url, BufferedImage defaultImage, int connectTimeout, int readTimeout, boolean logStackTrace)	Downloads an image and returns the downloaded image or the default image in case of an error
static byte[]	downloadImageRaw(String url, int connectTimeout, int readTimeout)	Downloads an image
static BufferedImage	generatePreviewImage(Image img, int width, int height)	Generates a preview for the given Image To preverse aspect ratio, you can set width to -1 and set height or the other way around
static BufferedImage	generatePreviewImage(Image img, int width, int height, int hints)	Generates a preview for the given Image To preverse aspect ratio, you can set width to -1 and set height or the other way around
static BufferedImage	generatePreviewImage(Image img, int width, int height, int hints, int type)	Generates a preview for the given Image To preverse aspect ratio, you can set width to -1 and set height or the other way around

Methods inherited from class java.lang.Object

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

Method Detail

downloadImage

public static BufferedImage downloadImage(String url,
                                          int connectTimeout,
                                          int readTimeout)
                                   throws IOException

Downloads an image

Parameters:

url - URL

connectTimeout - Connection Timeout

readTimeout - Read Timeout

Returns:

Downloaded Image or null if image could not be decoded

Throws:

MalformedURLException

IOException

downloadImage

public static BufferedImage downloadImage(String url,
                                          BufferedImage defaultImage,
                                          int connectTimeout,
                                          int readTimeout,
                                          boolean logStackTrace)

Downloads an image and returns the downloaded image or the default image in case of an error

Parameters:

url - URL

defaultImage - Default Image which will be returned in case of an error

connectTimeout - Connection Timeout

readTimeout - Read Timeout

logStackTrace - True if stack trace should be logged, false otherwise

Returns:

Downloaded image or the default image in case of an error

downloadImageRaw

public static byte[] downloadImageRaw(String url,
                                      int connectTimeout,
                                      int readTimeout)
                               throws IOException

Downloads an image

Parameters:

url - URL

connectTimeout - Connection Timeout

readTimeout - Read Timeout

Returns:

Downloaded Image data

Throws:

MalformedURLException

IOException

generatePreviewImage

public static BufferedImage generatePreviewImage(Image img,
                                                 int width,
                                                 int height)

Generates a preview for the given Image To preverse aspect ratio, you can set width to -1 and set height or the other way around

Parameters:

img - Original Image

width - Width

height - Height

Returns:

Scaled Image

generatePreviewImage

public static BufferedImage generatePreviewImage(Image img,
                                                 int width,
                                                 int height,
                                                 int hints)

Generates a preview for the given Image To preverse aspect ratio, you can set width to -1 and set height or the other way around

Parameters:

img - Original Image

width - Width

height - Height

hints - Hints

Returns:

Scaled Image

generatePreviewImage

public static BufferedImage generatePreviewImage(Image img,
                                                 int width,
                                                 int height,
                                                 int hints,
                                                 int type)

Generates a preview for the given Image To preverse aspect ratio, you can set width to -1 and set height or the other way around

Parameters:

img - Original Image

width - Width

height - Height

hints - Hints

type - Image Type

Returns:

Scaled Image