javafx.scene.image

Class PixelFormat.IndexedPixelFormat

java.lang.Object

javafx.scene.image.PixelFormat<java.nio.ByteBuffer>

javafx.scene.image.PixelFormat.IndexedPixelFormat

Enclosing class:

PixelFormat<T extends java.nio.Buffer>

static class PixelFormat.IndexedPixelFormat
extends PixelFormat<java.nio.ByteBuffer>

Nested Class Summary

Nested classes/interfaces inherited from class javafx.scene.image.PixelFormat

PixelFormat.Type

Method Summary

Methods

Modifier and Type	Method and Description
int	getArgb(java.nio.ByteBuffer buf, int x, int y, int scanlineStride) Reads a 32-bit integer representation of the color from the buffer at the specified coordinates.
boolean	isPremultiplied()
boolean	isWritable()

Methods inherited from class javafx.scene.image.PixelFormat

createByteIndexedInstance, createByteIndexedPremultipliedInstance, getByteBgraInstance, getByteBgraPreInstance, getByteRgbInstance, getIntArgbInstance, getIntArgbPreInstance, getType

Methods inherited from class java.lang.Object

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

Method Detail

isWritable

public boolean isWritable()

Specified by:

isWritable in class PixelFormat<java.nio.ByteBuffer>

isPremultiplied

public boolean isPremultiplied()

Specified by:

isPremultiplied in class PixelFormat<java.nio.ByteBuffer>

getArgb

public int getArgb(java.nio.ByteBuffer buf,
          int x,
          int y,
          int scanlineStride)

Description copied from class: PixelFormat

Reads a 32-bit integer representation of the color from the buffer at the specified coordinates. The 32-bit integer will contain the 4 color components in separate 8-bit fields in ARGB order from the most significant byte to the least significant byte. The buffer should be positioned to the start of the pixel data such that buf.get(0) would return the pixel information for the pixel at coordinates (0, 0). The scanlineStride parameter defines the distance from the pixel data at the start of one row to the pixel data at the start of the immediately following row at the next higher Y coordinate. Usually, scanlineStride is the same as the width of the image multiplied by the number of data elements per pixel (1 for the case of the integer and indexed formats, or 3 or 4 in the case of the byte formats), but some images may have further padding between rows for alignment or other purposes.

Specified by:

getArgb in class PixelFormat<java.nio.ByteBuffer>

Parameters:

buf - the buffer of pixel data

x - the X coordinate of the pixel to be read

y - the Y coordinate of the pixel to be read

scanlineStride - the number of buffer elements between the start of adjacent pixel rows in the buffer

Returns:

a 32-bit value with the color of the pixel in a format similar to the Type.INT_ARGB pixel format