com.github.brunothg.game.engine.image

Class ImageUtils

java.lang.Object

com.github.brunothg.game.engine.image.ImageUtils

public class ImageUtils
extends Object

Utility class for images.

Author:

Marvin Bruns

Field Summary

Fields

Modifier and Type	Field and Description
static Color	COLOR_TRANSPARENT

Constructor Summary

Constructors

Constructor and Description
ImageUtils()

Method Summary

Modifier and Type	Method and Description
static BufferedImage	BufferedImage(Image img) Uses BufferedImage.TYPE_INT_ARGB
static BufferedImage	BufferedImage(Image img, ImageObserver observer, int type) Convert a Image in a BufferedImage
static BufferedImage	BufferedImage(Image img, int type) Uses ImageIcon to ensure that the image is completely loaded.
static void	clearImage(BufferedImage img, Color clear) Clear a BufferedImage with the given color.
static void	clearImage(Graphics2D g2d, int width, int height, Color clear) Clears a Graphics2D object with the given Color.
static BufferedImage	colorize(BufferedImage img, Color c) The given BufferedImage will be colorized with the given Color.
static BufferedImage	copy(BufferedImage image) Create a copy of an BufferedImage.
static Cursor	createEmptyCursor(String name) Create an invisible cursor
static BufferedImage	createSprite(int frameWidth, int frameHeight, BufferedImage... frames) Fetch single frames and connect them, so that you get a single sprite image.
static BufferedImage	deepCopy(BufferedImage image) Create a deep copy of an BufferedImage.
static BufferedImage	getScaledInstance(Image img, int width, int height, ImageObserver observer) Uses BufferedImage.TYPE_INT_ARGB
static BufferedImage	getScaledInstance(Image img, int width, int height, int type, ImageObserver observer) Get a scaled version of an image
static BufferedImage	mirror(BufferedImage img, boolean mirrorX, boolean mirrorY) Mirror a BufferedImage.
static BufferedImage	shapeToImage(Shape shape, Color shapeColor, boolean fill) Converts a Shape into a BufferedImage
static BufferedImage	transform(BufferedImage img, AffineTransform transformation) Transform a BufferedImage using an AffineTransform.

Methods inherited from class java.lang.Object

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

Field Detail

COLOR_TRANSPARENT

public static final Color COLOR_TRANSPARENT

Constructor Detail

ImageUtils

public ImageUtils()

Method Detail

BufferedImage

public static BufferedImage BufferedImage(Image img)

Uses BufferedImage.TYPE_INT_ARGB

See Also:

BufferedImage(Image, int)

BufferedImage

public static BufferedImage BufferedImage(Image img,
                                          int type)

Uses ImageIcon to ensure that the image is completely loaded.

See Also:

BufferedImage(Image, ImageObserver, int)

BufferedImage

public static BufferedImage BufferedImage(Image img,
                                          ImageObserver observer,
                                          int type)

Convert a Image in a BufferedImage

Parameters:

img - Image to convert

observer - ImageObserver

type - BufferedImage.TYPE_INT_ARGB etc.

Returns:

the img as BufferedImage

getScaledInstance

public static BufferedImage getScaledInstance(Image img,
                                              int width,
                                              int height,
                                              ImageObserver observer)

Uses BufferedImage.TYPE_INT_ARGB

See Also:

getScaledInstance(Image, int, int, int, ImageObserver)

getScaledInstance

public static BufferedImage getScaledInstance(Image img,
                                              int width,
                                              int height,
                                              int type,
                                              ImageObserver observer)

Get a scaled version of an image

Parameters:

img - The image to scale

width - New width

height - New height

type - The image type e.g. BufferedImage.TYPE_INT_ARGB

observer - ImageObserver

clearImage

public static void clearImage(BufferedImage img,
                              Color clear)

Clear a BufferedImage with the given color.

Parameters:

img - Image to be cleared

clear - Color used for clearing this object. Only this color will be present

See Also:

clearImage(Graphics2D, int, int, Color)

clearImage

public static void clearImage(Graphics2D g2d,
                              int width,
                              int height,
                              Color clear)

Clears a Graphics2D object with the given Color. Alpha values will replace the current alpha. The resulting Graphics2D object will be transparent.

Parameters:

g2d - Graphics2D object to be cleared

width - Width of the area

height - Height of the area

clear - Color used for clearing this object. Only this color will be present

shapeToImage

public static BufferedImage shapeToImage(Shape shape,
                                         Color shapeColor,
                                         boolean fill)

Converts a Shape into a BufferedImage

Parameters:

shape - Shape do be drawn

shapeColor - Color in which the shape will be drawn

fill - if true the shape will be filled in. Otherwise only the outlines will be painted.

Returns:

The shape as image

deepCopy

public static BufferedImage deepCopy(BufferedImage image)

Create a deep copy of an BufferedImage. Properties will be dismissed. May fail.

Parameters:

image - Image to be copied

Returns:

Copied image

copy

public static BufferedImage copy(BufferedImage image)

Create a copy of an BufferedImage.

Parameters:

image - Image to be copied

Returns:

Copied image

createEmptyCursor

public static Cursor createEmptyCursor(String name)

Create an invisible cursor

transform

public static BufferedImage transform(BufferedImage img,
                                      AffineTransform transformation)

Transform a BufferedImage using an AffineTransform. The returned image is the same as passed as Argument. All work is done direct on the image.

mirror

public static BufferedImage mirror(BufferedImage img,
                                   boolean mirrorX,
                                   boolean mirrorY)

Mirror a BufferedImage. The returned image is a new BufferedImage.

colorize

public static BufferedImage colorize(BufferedImage img,
                                     Color c)

The given BufferedImage will be colorized with the given Color. Brightness will be used to modify the given color.
The operation is done direct on the provided image.

createSprite

public static BufferedImage createSprite(int frameWidth,
                                         int frameHeight,
                                         BufferedImage... frames)

Fetch single frames and connect them, so that you get a single sprite image.

Parameters:

frameWidth - Width of one single frame

frameHeight - Height of one single frame

frames - The frames for the sprite

Returns:

An image containing all given frames. Frames will be stretched to match frameWidth and frameHeight