java.awt.image
Class BufferedImage
- RenderedImage, Transparency, WritableRenderedImage
A buffered image always starts at coordinates (0, 0).
The buffered image is not subdivided into multiple tiles. Instead,
the image consists of one large tile (0,0) with the width and
height of the image. This tile is always considered to be checked
out.
void | addTileObserver(TileObserver to)- Adds a tile observer.
|
void | coerceData(boolean premultiplied)
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WritableRaster | copyData(WritableRaster dest)
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Graphics2D | createGraphics()
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void | flush()- Flushes (that is, destroys) any resources used for this image.
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WritableRaster | getAlphaRaster()
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ColorModel | getColorModel()
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Raster | getData()
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Raster | getData(Rectangle rectangle)
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Graphics | getGraphics()- Returns a graphics context object for drawing an off-screen object.
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int | getHeight()
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int | getHeight(ImageObserver imageobserver)- Returns the height of the image, or -1 if it is unknown.
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int | getMinTileX()
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int | getMinTileY()
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int | getMinX()
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int | getMinY()
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int | getNumXTiles()
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int | getNumYTiles()
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Object | getProperty(String string)- Returns the value of the specified property, or
Image.UndefinedProperty if the property is not defined.
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Object | getProperty(String string, ImageObserver imageobserver)- This method requests a named property for an object.
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String[] | getPropertyNames()- Returns
null always.
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int | getRGB(int x, int y)
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int[] | getRGB(int startX, int startY, int w, int h, int[] rgbArray, int offset, int scanlineStride)
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WritableRaster | getRaster()
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SampleModel | getSampleModel()
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ImageProducer | getSource()- Returns the image producer object for this object.
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Vector | getSources()
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BufferedImage | getSubimage(int x, int y, int w, int h)
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Raster | getTile(int tileX, int tileY)
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int | getTileGridXOffset()
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int | getTileGridYOffset()
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int | getTileHeight()
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int | getTileWidth()
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int | getTransparency()- Return the transparency type.
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int | getType()
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int | getWidth()
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int | getWidth(ImageObserver imageobserver)- Returns the width of the image, or -1 if it is unknown.
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WritableRaster | getWritableTile(int tileX, int tileY)
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Point[] | getWritableTileIndices()
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boolean | hasTileWriters()
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boolean | isAlphaPremultiplied()
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boolean | isTileWritable(int tileX, int tileY)
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void | releaseWritableTile(int tileX, int tileY)
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void | removeTileObserver(TileObserver to)- Removes a tile observer.
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void | setData(Raster src)
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void | setRGB(int x, int y, int argb)
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void | setRGB(int startX, int startY, int w, int h, int[] argbArray, int offset, int scanlineStride)
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String | toString()- Convert this Object to a human-readable String.
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clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait |
BufferedImage
public BufferedImage(int width,
int height,
int type) Creates a new
BufferedImage with the specified width, height
and type. Valid
type values are:
width - the width (must be > 0).height - the height (must be > 0).type - the image type (see the list of valid types above).
coerceData
public void coerceData(boolean premultiplied)
flush
public void flush()
Flushes (that is, destroys) any resources used for this image. This
includes the actual image data.
- flush in interface Image
getGraphics
public Graphics getGraphics()
Returns a graphics context object for drawing an off-screen object.
This method is only valid for off-screen objects.
- getGraphics in interface Image
- a graphics context object for an off-screen object
getHeight
public int getHeight(ImageObserver imageobserver)
Returns the height of the image, or -1 if it is unknown. If the
image height is unknown, the observer object will be notified when
the value is known.
- getHeight in interface Image
getProperty
public Object getProperty(String string,
ImageObserver imageobserver) This method requests a named property for an object. The value of the
property is returned. The value UndefinedProperty is
returned if there is no property with the specified name. The value
null is returned if the properties for the object are
not yet known. In this case, the specified image observer is notified
when the properties are known.
- getProperty in interface Image
- the named property, if available
getRGB
public int getRGB(int x,
int y)
getRGB
public int[] getRGB(int startX,
int startY,
int w,
int h,
int[] rgbArray,
int offset,
int scanlineStride)
getSource
public ImageProducer getSource()
Returns the image producer object for this object. The producer is the
object which generates pixels for this image.
- getSource in interface Image
- the image producer for this object
getWidth
public int getWidth(ImageObserver imageobserver)
Returns the width of the image, or -1 if it is unknown. If the
image width is unknown, the observer object will be notified when
the value is known.
- getWidth in interface Image
setRGB
public void setRGB(int x,
int y,
int argb)
setRGB
public void setRGB(int startX,
int startY,
int w,
int h,
int[] argbArray,
int offset,
int scanlineStride)
toString
public String toString()
Convert this Object to a human-readable String.
There are no limits placed on how long this String
should be or what it should contain. We suggest you
make it as intuitive as possible to be able to place
it into
System.out.println()
and such.
It is typical, but not required, to ensure that this method
never completes abruptly with a
RuntimeException.
This method will be called when performing string
concatenation with this object. If the result is
null, string concatenation will instead
use
"null".
The default implementation returns
getClass().getName() + "@" +
Integer.toHexString(hashCode()).
- toString in interface Object
- the String representing this Object, which may be null
BufferedImage.java --
Copyright (C) 2000, 2002, 2003, 2004, 2005, 2006, Free Software Foundation
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