org.zimowski.bambi.editor.studio.image

Class EditorImageUtil

java.lang.Object

org.zimowski.bambi.editor.studio.image.EditorImageUtil

public final class EditorImageUtil
extends Object

Utility routines for handling image tasks.

Author:

Adam Zimowski (mrazjava)

Method Summary

Methods

Modifier and Type	Method and Description
static BufferedImage	applySepiaFilter(BufferedImage src)
static AffineTransform	findTranslation(AffineTransform at, int width, int height, int angle)
static BufferedImage	getLocalIcon(String resourcePath) Loads icon from classpath as a resource.
static boolean	hasAlpha(Image image)
static BufferedImage	makeJpg(BufferedImage source, Paint color, boolean clip) Copies source image (regardless of format) to build output in JPEG format.
static BufferedImage	makePng(BufferedImage source, boolean clip) Copies source image (regardless of format) to build output in PNG format.
static BufferedImage	rotate(BufferedImage source, Integer angle, Color bgColor, Double scaleX, Double scaleY) Rotates and/or scales the source image.
static BufferedImage	toBufferedImage(Image image)

Methods inherited from class java.lang.Object

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

Method Detail

toBufferedImage

public static BufferedImage toBufferedImage(Image image)

hasAlpha

public static boolean hasAlpha(Image image)

makeJpg

public static BufferedImage makeJpg(BufferedImage source,
                    Paint color,
                    boolean clip)

Copies source image (regardless of format) to build output in JPEG format. The color argument is most relevant if image corners are to be clipped (to make round image), in which case the clipped areas would be filled with that color.

Parameters:

source - - source image to copy

color - - background color for clipped corner areas; may be null

clip - - true if image to be round; false if rectangular

Returns:

makePng

public static BufferedImage makePng(BufferedImage source,
                    boolean clip)

Copies source image (regardless of format) to build output in PNG format. If image corners are to be clipped, the will be transparent.

Parameters:

source -

clip - - true if image to be round; false if rectangular

Returns:

findTranslation

public static AffineTransform findTranslation(AffineTransform at,
                              int width,
                              int height,
                              int angle)

rotate

public static BufferedImage rotate(BufferedImage source,
                   Integer angle,
                   Color bgColor,
                   Double scaleX,
                   Double scaleY)

Rotates and/or scales the source image. If angle is null rotation is not performed. If either scale argument is null scaling is not performed. Rotation is done clockwise according to the angle. Angle is in degrees and can be any integer, positive or negative as it will always be normalized to positive angle between 0 and 360. For example, a -90 angle results in a clockwise rotation by 270 degrees. Likewise a degree of -375 would rotate the image by 15 degrees clockwise. Background color argument can be passed if the image format does not carry transparency, in which case image graphics context will use that color to paint the background. This will be apparent if the rotation is outside of a 90 degree increment. Scale is a value between 0.0 and 1.0 where 1.0 is a full scale (100%).

Parameters:

source - - image to be rotated and/or scaled

angle - - angle in degrees by how much the image should be rotated. Typically the angle is in increments of 90 degrees.

bgColor - - color to fill the background with

scaleX - - percent by which to scale x-axis

scaleY - - percent by which to scale y-axis

Returns:

rotated/scaled image

applySepiaFilter

public static BufferedImage applySepiaFilter(BufferedImage src)

Parameters:

img - - Image to modify

Throws:

Exception

getLocalIcon

public static BufferedImage getLocalIcon(String resourcePath)

Loads icon from classpath as a resource.

Parameters:

resourcePath - path to the icon relative to Configuration.RESOURCE_PATH

Returns:

requested icon