java.awt.image
public abstract class PackedColorModel extends ColorModel
pixel_bits, transferType
BITMASK, OPAQUE, TRANSLUCENT
Constructor and Description |
---|
PackedColorModel(ColorSpace cspace,
int pixelBits,
int[] colorMaskArray,
int alphaMask,
boolean isAlphaPremultiplied,
int transparency,
int transferType) |
PackedColorModel(ColorSpace cspace,
int pixelBits,
int rmask,
int gmask,
int bmask,
int amask,
boolean isAlphaPremultiplied,
int transparency,
int transferType) |
Modifier and Type | Method and Description |
---|---|
SampleModel |
createCompatibleSampleModel(int w,
int h) |
boolean |
equals(Object obj)
Determine whether this Object is semantically equal
to another Object.
|
WritableRaster |
getAlphaRaster(WritableRaster raster)
Subclasses must override this method if it is possible for the
color model to have an alpha channel.
|
int |
getMask(int index) |
int[] |
getMasks() |
boolean |
isCompatibleSampleModel(SampleModel sm) |
coerceData, createCompatibleWritableRaster, finalize, getAlpha, getAlpha, getBlue, getBlue, getColorSpace, getComponents, getComponents, getComponentSize, getComponentSize, getDataElement, getDataElement, getDataElements, getDataElements, getDataElements, getGreen, getGreen, getNormalizedComponents, getNormalizedComponents, getNumColorComponents, getNumComponents, getPixelSize, getRed, getRed, getRGB, getRGB, getRGBdefault, getTransferType, getTransparency, getUnnormalizedComponents, hasAlpha, isAlphaPremultiplied, isCompatibleRaster, toString
public PackedColorModel(ColorSpace cspace, int pixelBits, int[] colorMaskArray, int alphaMask, boolean isAlphaPremultiplied, int transparency, int transferType)
public PackedColorModel(ColorSpace cspace, int pixelBits, int rmask, int gmask, int bmask, int amask, boolean isAlphaPremultiplied, int transparency, int transferType)
public final int getMask(int index)
public final int[] getMasks()
public SampleModel createCompatibleSampleModel(int w, int h)
createCompatibleSampleModel
in class ColorModel
public boolean isCompatibleSampleModel(SampleModel sm)
isCompatibleSampleModel
in class ColorModel
public WritableRaster getAlphaRaster(WritableRaster raster)
ColorModel
getAlphaRaster
in class ColorModel
public boolean equals(Object obj)
Object
There are some fairly strict requirements on this
method which subclasses must follow:
a.equals(b)
and
b.equals(c)
, then a.equals(c)
must be true as well.a.equals(b)
and
b.equals(a)
must have the same value.a.equals(a)
must
always be true.a.equals(null)
must be false.a.equals(b)
must imply
a.hashCode() == b.hashCode()
.
The reverse is not true; two objects that are not
equal may have the same hashcode, but that has
the potential to harm hashing performance.This is typically overridden to throw a ClassCastException
if the argument is not comparable to the class performing
the comparison, but that is not a requirement. It is legal
for a.equals(b)
to be true even though
a.getClass() != b.getClass()
. Also, it
is typical to never cause a NullPointerException
.
In general, the Collections API (java.util
) use the
equals
method rather than the ==
operator to compare objects. However, IdentityHashMap
is an exception to this rule, for its own good reasons.
The default implementation returns this == o
.
equals
in class ColorModel
obj
- the Object to compare toObject.hashCode()