android.image
Class Image

java.lang.Object
  android.image.Image

Direct Known Subclasses:

Line, Overlay, RasterImage, Rectangle, RegularPolygon, Scene, Text, Triangle

public abstract class Image
extends java.lang.Object

An abstract class representing an Image. See subclasses for specific implementations.

Field Summary

static android.graphics.Paint	BLACK_OUTLINE
static android.graphics.Paint	CLEAR
static android.graphics.Paint	WHITE

Method Summary

RasterImage	flipHorizontal() Return a version of this Image flipped horizontally (left to right).
RasterImage	flipVertical() Return a version of this Image flipped vertically (top to bottom).
abstract int	height() Calculate the height of this Image
Image	overlay(Image top) Overlay the given Image over this Image
Image	overlay(Image top, Image next, Image... imgs) Overlay the given Images over this Image
Image	overlayxy(double x, double y, Image top) Overlay the given Image over this Image offset (x,y)
Image	overlayxy(Image top, double x, double y) Overlay the given Image over this Image offset (x,y)
Image	overlayxy(Image top, int x, int y) Overlay the given Image over this Image offset (x,y)
Image	overlayxy(Image top, Posn p) Overlay the given Image over this Image offset Posn
Image	overlayxy(int x, int y, Image top) Overlay the given Image over this Image offset (x,y)
Image	overlayxy(Posn p, Image top) Overlay the given Image over this Image offset Posn
abstract void	paint(android.graphics.Canvas c, int x, int y) Draw this image into a Graphics
RasterImage	rasterize() Return a raster (buffered) version of this Image
Image	rotate(double ang) Return a rotated version of this image by the given angle in degrees.
Image	rotate(int ang) Return a rotated version of this image by the given angle in degrees.
boolean	toFile(java.lang.String name) Save this image to a file
Scene	toScene() Convert this image into a Scene containing the image without a background
boolean	toWhiteFile(java.lang.String name) Save this image to a file
Scene	toWhiteScene() Convert this image into a Scene containing the image with a white background
abstract int	width() Calculate the width of this Image

Methods inherited from class java.lang.Object

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

Field Detail

WHITE

public static android.graphics.Paint WHITE

BLACK_OUTLINE

public static android.graphics.Paint BLACK_OUTLINE

CLEAR

public static android.graphics.Paint CLEAR

Method Detail

overlay

public Image overlay(Image top)

Overlay the given Image over this Image

overlay

public Image overlay(Image top,
                     Image next,
                     Image... imgs)

Overlay the given Images over this Image

overlayxy

public Image overlayxy(Image top,
                       int x,
                       int y)

Overlay the given Image over this Image offset (x,y)

overlayxy

public Image overlayxy(Image top,
                       double x,
                       double y)

Overlay the given Image over this Image offset (x,y)

overlayxy

public Image overlayxy(Image top,
                       Posn p)

Overlay the given Image over this Image offset Posn

overlayxy

public Image overlayxy(int x,
                       int y,
                       Image top)

Overlay the given Image over this Image offset (x,y)

overlayxy

public Image overlayxy(double x,
                       double y,
                       Image top)

Overlay the given Image over this Image offset (x,y)

overlayxy

public Image overlayxy(Posn p,
                       Image top)

Overlay the given Image over this Image offset Posn

paint

public abstract void paint(android.graphics.Canvas c,
                           int x,
                           int y)

Draw this image into a Graphics

width

public abstract int width()

Calculate the width of this Image

height

public abstract int height()

Calculate the height of this Image

toScene

public Scene toScene()

Convert this image into a Scene containing the image without a background

toWhiteScene

public Scene toWhiteScene()

Convert this image into a Scene containing the image with a white background

toFile

public boolean toFile(java.lang.String name)

Save this image to a file

toWhiteFile

public boolean toWhiteFile(java.lang.String name)

Save this image to a file

rasterize

public RasterImage rasterize()

Return a raster (buffered) version of this Image

rotate

public Image rotate(int ang)

Return a rotated version of this image by the given angle in degrees.

rotate

public Image rotate(double ang)

Return a rotated version of this image by the given angle in degrees.

Any Image may be rotated several times, though for efficiency (when possible) the rotated image should be saved, rather than recreated.

flipHorizontal

public RasterImage flipHorizontal()

Return a version of this Image flipped horizontally (left to right).

flipVertical

public RasterImage flipVertical()

Return a version of this Image flipped vertically (top to bottom).