kiyut.citra.util
Class ImageUtilities

java.lang.Object
  kiyut.citra.util.ImageUtilities

public class ImageUtilities
extends Object

Image utilitis class. It provides provides static methods for manipulating Images

Author:

Kiyut

Constructor Summary

ImageUtilities()

Method Summary

static BufferedImage	createImageARGB(Image src, boolean copy) Returns a BufferedImage with type ARGB based on the supplied source image
static BufferedImage	createImageARGB(int width, int height) Returns a BufferedImage with type ARGB based on the supplied param
static String	getFileSuffix(File file) Return file suffix portion of give file.
static BufferedImage	getScaledInstance(BufferedImage img, int w, int h, boolean autoHint, boolean scaleFit) Return a scaled instance of the provided BufferedImage.
static BufferedImage	getScaledInstance(BufferedImage img, int w, int h, Object hint) Return a scaled instance of the provided BufferedImage.
static BufferedImage	getScaledInstance(BufferedImage img, int width, int height, Object hint, boolean scaleFit) Return a scaled instance of the provided BufferedImage.
static BufferedImage	iconToBufferedImage(Icon icon) Returns a BufferedImage representation of the icon.
static boolean	isFileImage(File file) Return whether the file is a known image file or not It is use ImageIO to determine the file type
static double	scaleToFit(Dimension src, Dimension dest) Return the scale value from src to dest proportionally

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageUtilities

public ImageUtilities()

Method Detail

getScaledInstance

public static BufferedImage getScaledInstance(BufferedImage img,
                                              int w,
                                              int h,
                                              Object hint)

Return a scaled instance of the provided BufferedImage. Only a wrapper for getScaledInstance(BufferedImage,int,int,Object,false)

Parameters:

img - the original image to be scaled

w - target width

h - target height

hint - one of the rendering hints that corresponds to RenderingHints.KEY_INTERPOLATION (e.g. RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR, RenderingHints.VALUE_INTERPOLATION_BILINEAR, RenderingHints.VALUE_INTERPOLATION_BICUBIC)

Returns:

a scaled version of the original BufferedImage

See Also:

getScaledInstance(BufferedImage,int,int,boolean,boolean), getScaledInstance(BufferedImage,int,int,Object,boolean)

getScaledInstance

public static BufferedImage getScaledInstance(BufferedImage img,
                                              int w,
                                              int h,
                                              boolean autoHint,
                                              boolean scaleFit)

Return a scaled instance of the provided BufferedImage.

Parameters:

img - the image

width - target width

height - target height

autoHint - if scale factor > 0.5 use bicubic else use default.

scaleFit - scale the image proportionally to fit the supplied width & height if the image is smaller than width and height then nothing change

Returns:

new BufferedImage

See Also:

getScaledInstance(BufferedImage,int,int,Object), getScaledInstance(BufferedImage,int,int,Object,boolean)

getScaledInstance

public static BufferedImage getScaledInstance(BufferedImage img,
                                              int width,
                                              int height,
                                              Object hint,
                                              boolean scaleFit)

Return a scaled instance of the provided BufferedImage.

Parameters:

img - the image

width - target width

height - target height

hint - one of the rendering hints that corresponds to RenderingHints.KEY_INTERPOLATION (e.g. RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR, RenderingHints.VALUE_INTERPOLATION_BILINEAR, RenderingHints.VALUE_INTERPOLATION_BICUBIC)

scaleFit - scale the image proportionally to fit the supplied width & height if the image is smaller than width and height then nothing change

Returns:

new BufferedImage

See Also:

getScaledInstance(BufferedImage,int,int,Object), getScaledInstance(BufferedImage,int,int,boolean,boolean), scaleToFit(Dimension,Dimension)

scaleToFit

public static double scaleToFit(Dimension src,
                                Dimension dest)

Return the scale value from src to dest proportionally

Parameters:

src - source dimension

dest - destination dimension

Returns:

the scale value

isFileImage

public static boolean isFileImage(File file)

Return whether the file is a known image file or not It is use ImageIO to determine the file type

Parameters:

file - the file to be queried

Returns:

true if it is know image file type, otherwise false

getFileSuffix

public static String getFileSuffix(File file)

Return file suffix portion of give file.

Parameters:

file - the file to be queried

Returns:

suffix (eg: jpg,gif,etc) or null

iconToBufferedImage

public static BufferedImage iconToBufferedImage(Icon icon)

Returns a BufferedImage representation of the icon.

Parameters:

icon - the icon

Returns:

BufferedImage representation of the icon

createImageARGB

public static BufferedImage createImageARGB(Image src,
                                            boolean copy)

Returns a BufferedImage with type ARGB based on the supplied source image

Parameters:

src - Image

copy - if true copy the content of the source

Returns:

BufferedImage

createImageARGB

public static BufferedImage createImageARGB(int width,
                                            int height)

Returns a BufferedImage with type ARGB based on the supplied param

Parameters:

width - the width

height - the height

Returns:

BufferedImage