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Préférences
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| JavaTM 2 Platform Std. Ed. v1.4.2
java.awt.image
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| Field Summary |
| Fields inherited from class java.awt.image.SampleModel |
dataType, height, numBands, width |
| Constructor Summary | |
SinglePixelPackedSampleModel(int dataType,
int w,
int h,
int[] bitMasks)
Constructs a SinglePixelPackedSampleModel with bitMasks.length bands. |
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SinglePixelPackedSampleModel(int dataType,
int w,
int h,
int scanlineStride,
int[] bitMasks)
Constructs a SinglePixelPackedSampleModel with bitMasks.length bands and a scanline stride equal to scanlineStride data array elements. |
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| Method Summary | |
SampleModel |
createCompatibleSampleModel(int w,
int h)
Creates a new SinglePixelPackedSampleModel with the specified width and height. |
DataBuffer |
createDataBuffer()
Creates a DataBuffer that corresponds to this SinglePixelPackedSampleModel. |
SampleModel |
createSubsetSampleModel(int[] bands)
This creates a new SinglePixelPackedSampleModel with a subset of the bands of this SinglePixelPackedSampleModel. |
boolean |
equals(Object o)
Indicates whether some other object is "equal to" this one. |
int[] |
getBitMasks()
Returns the bit masks for all bands. |
int[] |
getBitOffsets()
Returns the bit offsets into the data array element representing a pixel for all bands. |
Object |
getDataElements(int x,
int y,
Object obj,
DataBuffer data)
Returns data for a single pixel in a primitive array of type TransferType. |
int |
getNumDataElements()
Returns the number of data elements needed to transfer one pixel via the getDataElements and setDataElements methods. |
int |
getOffset(int x,
int y)
Returns the offset (in data array elements) of pixel (x,y). |
int[] |
getPixel(int x,
int y,
int[] iArray,
DataBuffer data)
Returns all samples in for the specified pixel in an int array. |
int[] |
getPixels(int x,
int y,
int w,
int h,
int[] iArray,
DataBuffer data)
Returns all samples for the specified rectangle of pixels in an int array, one sample per array element. |
int |
getSample(int x,
int y,
int b,
DataBuffer data)
Returns as int the sample in a specified band for the pixel located at (x,y). |
int[] |
getSamples(int x,
int y,
int w,
int h,
int b,
int[] iArray,
DataBuffer data)
Returns the samples for a specified band for the specified rectangle of pixels in an int array, one sample per array element. |
int[] |
getSampleSize()
Returns the number of bits per sample for all bands. |
int |
getSampleSize(int band)
Returns the number of bits per sample for the specified band. |
int |
getScanlineStride()
Returns the scanline stride of this SinglePixelPackedSampleModel. |
int |
hashCode()
Returns a hash code value for the object. |
void |
setDataElements(int x,
int y,
Object obj,
DataBuffer data)
Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType. |
void |
setPixel(int x,
int y,
int[] iArray,
DataBuffer data)
Sets a pixel in the DataBuffer using an int array of samples for input. |
void |
setPixels(int x,
int y,
int w,
int h,
int[] iArray,
DataBuffer data)
Sets all samples for a rectangle of pixels from an int array containing one sample per array element. |
void |
setSample(int x,
int y,
int b,
int s,
DataBuffer data)
Sets a sample in the specified band for the pixel located at (x,y) in the DataBuffer using an int for input. |
void |
setSamples(int x,
int y,
int w,
int h,
int b,
int[] iArray,
DataBuffer data)
Sets the samples in the specified band for the specified rectangle of pixels from an int array containing one sample per array element. |
| Methods inherited from class java.awt.image.SampleModel |
getDataElements, getDataType, getHeight, getNumBands, getPixel, getPixel, getPixels, getPixels, getSampleDouble, getSampleFloat, getSamples, getSamples, getTransferType, getWidth, setDataElements, setPixel, setPixel, setPixels, setPixels, setSample, setSample, setSamples, setSamples |
| Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public SinglePixelPackedSampleModel(int dataType,
int w,
int h,
int[] bitMasks)
dataType - The data type for storing samples.w - The width (in pixels) of the region of the
image data described.h - The height (in pixels) of the region of the
image data described.bitMasks - The bit masks for all bands.
IllegalArgumentException - if dataType is not
either DataBuffer.TYPE_BYTE,
DataBuffer.TYPE_USHORT, or
DataBuffer.TYPE_INT
public SinglePixelPackedSampleModel(int dataType,
int w,
int h,
int scanlineStride,
int[] bitMasks)
dataType - The data type for storing samples.w - The width (in pixels) of the region of
image data described.h - The height (in pixels) of the region of
image data described.scanlineStride - The line stride of the image data.bitMasks - The bit masks for all bands.
IllegalArgumentException - if w or
h is not greater than 0
IllegalArgumentException - if any mask in
bitMask is not contiguous
IllegalArgumentException - if dataType is not
either DataBuffer.TYPE_BYTE,
DataBuffer.TYPE_USHORT, or
DataBuffer.TYPE_INT| Method Detail |
public int getNumDataElements()
getNumDataElements in class SampleModelSampleModel.getDataElements(int, int, Object, DataBuffer),
SampleModel.getDataElements(int, int, int, int, Object, DataBuffer),
SampleModel.setDataElements(int, int, Object, DataBuffer),
SampleModel.setDataElements(int, int, int, int, Object, DataBuffer),
SampleModel.getTransferType()public SampleModel createCompatibleSampleModel(int w, int h)
createCompatibleSampleModel in class SampleModelw - the width of the resulting SampleModelh - the height of the resulting SampleModel
SinglePixelPackedSampleModel with the
specified width and height.
IllegalArgumentException - if w or
h is not greater than 0public DataBuffer createDataBuffer()
createDataBuffer in class SampleModelDataBuffer corresponding to this
SampleModel.public int[] getSampleSize()
getSampleSize in class SampleModelpublic int getSampleSize(int band)
getSampleSize in class SampleModelband - the specified band
public int getOffset(int x,
int y)
x,y
can be retrieved from a DataBuffer data with a
SinglePixelPackedSampleModel sppsm as:
data.getElem(sppsm.getOffset(x, y));
public int[] getBitOffsets()
public int[] getBitMasks()
public int getScanlineStride()
SinglePixelPackedSampleModel.public SampleModel createSubsetSampleModel(int[] bands)
createSubsetSampleModel in class SampleModelbands - the subset of bands of this SampleModel
SampleModel with a subset of bands of this
SampleModel.
RasterFormatException - if the length of the bands argument is
greater than the number of bands in
the sample model.public Object getDataElements(int x, int y, Object obj, DataBuffer data)
The following code illustrates transferring data for one pixel from
DataBuffer db1, whose storage layout is described by
SinglePixelPackedSampleModel sppsm1, to
DataBuffer db2, whose storage layout is described by
SinglePixelPackedSampleModel sppsm2.
The transfer will generally be more efficient than using
getPixel/setPixel.
SinglePixelPackedSampleModel sppsm1, sppsm2;
DataBufferInt db1, db2;
sppsm2.setDataElements(x, y, sppsm1.getDataElements(x, y, null,
db1), db2);
Using getDataElements/setDataElements to transfer between two
DataBuffer/SampleModel pairs is legitimate if the SampleModels have
the same number of bands, corresponding bands have the same number of
bits per sample, and the TransferTypes are the same.
If obj is non-null, it should be a primitive array of type TransferType. Otherwise, a ClassCastException is thrown. An ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds, or if obj is non-null and is not large enough to hold the pixel data.
getDataElements in class SampleModelx - The X coordinate of the pixel location.y - The Y coordinate of the pixel location.obj - If non-null, a primitive array in which to return
the pixel data.data - The DataBuffer containing the image data.
setDataElements(int, int, Object, DataBuffer)
public int[] getPixel(int x,
int y,
int[] iArray,
DataBuffer data)
getPixel in class SampleModelx - The X coordinate of the pixel location.y - The Y coordinate of the pixel location.iArray - If non-null, returns the samples in this arraydata - The DataBuffer containing the image data.
setPixel(int, int, int[], DataBuffer)
public int[] getPixels(int x,
int y,
int w,
int h,
int[] iArray,
DataBuffer data)
getPixels in class SampleModelx - The X coordinate of the upper left pixel location.y - The Y coordinate of the upper left pixel location.w - The width of the pixel rectangle.h - The height of the pixel rectangle.iArray - If non-null, returns the samples in this array.data - The DataBuffer containing the image data.
setPixels(int, int, int, int, int[], DataBuffer)
public int getSample(int x,
int y,
int b,
DataBuffer data)
getSample in class SampleModelx - The X coordinate of the pixel location.y - The Y coordinate of the pixel location.b - The band to return.data - The DataBuffer containing the image data.
setSample(int, int, int, int, DataBuffer)
public int[] getSamples(int x,
int y,
int w,
int h,
int b,
int[] iArray,
DataBuffer data)
getSamples in class SampleModelx - The X coordinate of the upper left pixel location.y - The Y coordinate of the upper left pixel location.w - The width of the pixel rectangle.h - The height of the pixel rectangle.b - The band to return.iArray - If non-null, returns the samples in this array.data - The DataBuffer containing the image data.
setSamples(int, int, int, int, int, int[], DataBuffer)
public void setDataElements(int x,
int y,
Object obj,
DataBuffer data)
The following code illustrates transferring data for one pixel from
DataBuffer db1, whose storage layout is described by
SinglePixelPackedSampleModel sppsm1,
to DataBuffer db2, whose storage layout is described by
SinglePixelPackedSampleModel sppsm2.
The transfer will generally be more efficient than using
getPixel/setPixel.
SinglePixelPackedSampleModel sppsm1, sppsm2;
DataBufferInt db1, db2;
sppsm2.setDataElements(x, y, sppsm1.getDataElements(x, y, null,
db1), db2);
Using getDataElements/setDataElements to transfer between two
DataBuffer/SampleModel pairs is legitimate if the SampleModels have
the same number of bands, corresponding bands have the same number of
bits per sample, and the TransferTypes are the same.
obj must be a primitive array of type TransferType. Otherwise, a ClassCastException is thrown. An ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds, or if obj is not large enough to hold the pixel data.
setDataElements in class SampleModelx - The X coordinate of the pixel location.y - The Y coordinate of the pixel location.obj - A primitive array containing pixel data.data - The DataBuffer containing the image data.getDataElements(int, int, Object, DataBuffer)
public void setPixel(int x,
int y,
int[] iArray,
DataBuffer data)
setPixel in class SampleModelx - The X coordinate of the pixel location.y - The Y coordinate of the pixel location.iArray - The input samples in an int array.data - The DataBuffer containing the image data.getPixel(int, int, int[], DataBuffer)
public void setPixels(int x,
int y,
int w,
int h,
int[] iArray,
DataBuffer data)
setPixels in class SampleModelx - The X coordinate of the upper left pixel location.y - The Y coordinate of the upper left pixel location.w - The width of the pixel rectangle.h - The height of the pixel rectangle.iArray - The input samples in an int array.data - The DataBuffer containing the image data.getPixels(int, int, int, int, int[], DataBuffer)
public void setSample(int x,
int y,
int b,
int s,
DataBuffer data)
setSample in class SampleModelx - The X coordinate of the pixel location.y - The Y coordinate of the pixel location.b - The band to set.s - The input sample as an int.data - The DataBuffer containing the image data.getSample(int, int, int, DataBuffer)
public void setSamples(int x,
int y,
int w,
int h,
int b,
int[] iArray,
DataBuffer data)
setSamples in class SampleModelx - The X coordinate of the upper left pixel location.y - The Y coordinate of the upper left pixel location.w - The width of the pixel rectangle.h - The height of the pixel rectangle.b - The band to set.iArray - The input samples in an int array.data - The DataBuffer containing the image data.getSamples(int, int, int, int, int, int[], DataBuffer)public boolean equals(Object o)
Object
The equals method implements an equivalence relation
on non-null object references:
x, x.equals(x) should return
true.
x and y, x.equals(y)
should return true if and only if
y.equals(x) returns true.
x, y, and z, if
x.equals(y) returns true and
y.equals(z) returns true, then
x.equals(z) should return true.
x and y, multiple invocations of
x.equals(y) consistently return true
or consistently return false, provided no
information used in equals comparisons on the
objects is modified.
x,
x.equals(null) should return false.
The equals method for class Object implements
the most discriminating possible equivalence relation on objects;
that is, for any non-null reference values x and
y, this method returns true if and only
if x and y refer to the same object
(x == y has the value true).
Note that it is generally necessary to override the hashCode method whenever this method is overridden, so as to maintain the general contract for the hashCode method, which states that equal objects must have equal hash codes.
o - the reference object with which to compare.
true if this object is the same as the obj
argument; false otherwise.Object.hashCode(),
Hashtablepublic int hashCode()
Objectjava.util.Hashtable.
The general contract of hashCode is:
hashCode method on each of
the two objects must produce the same integer result.
Object.equals(java.lang.Object)
method, then calling the hashCode method on each of the
two objects must produce distinct integer results. However, the
programmer should be aware that producing distinct integer results
for unequal objects may improve the performance of hashtables.
As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)
Object.equals(java.lang.Object),
Hashtable