JavaFX 24 · com.sun.javafx.iio.ios.IosImageLoader · APIdia, the JavaDoc alternative

Field Summary

Modifier and Type	Field and Description
private static final Map<Integer, ImageStorage.ImageType>	COLOR_SPACE_MAPPING
private int	delayTime
public static final int	GRAY These constants must match with those in native
public static final int	GRAY_ALPHA
public static final int	GRAY_ALPHA_PRE
private int	inHeight
private int	inWidth Set by native code
private boolean	isDisposed
private int	loopCount
private int	nImages
public static final int	PALETTE
public static final int	PALETTE_ALPHA
public static final int	PALETTE_ALPHA_PRE
public static final int	PALETTE_TRANS
public static final int	RGB
public static final int	RGBA
public static final int	RGBA_PRE
private long	structPointer Pointer to the native loader

Inherited from com.sun.javafx.iio.common.ImageLoaderImpl:: formatDescription lastPercentDone listeners

Constructor Summary

Access	Constructor and Description
public	IosImageLoader(final String urlString, final ImageDescriptor desc)
public	IosImageLoader(final InputStream inputStream, final ImageDescriptor desc)

Method Summary

Modifier and Type	Method and Description
private void	checkNativePointer()
public synchronized void	dispose() Implements com.sun.javafx.iio.ImageLoader.dispose. Disposes of any resources (such as native libraries) held by this loader.
private static native void	disposeLoader(long structPointer) Destroy a loader.
private native int	getColorSpaceCode(long structPointer) Return image color space model code
private native int	getDelayTime(long structPointer) Return image duration for animated images
private native byte[]	getImageBuffer(long structPointer, int imageIndex) Return a buffer with decompressed image data
private native int	getNumberOfComponents(long structPointer) Return the number of color components
private static native void	initNativeLoading() Set up static method IDs for calls back to Java.
public ImageFrame	load(int the zero-relative index of the image to load. imageIndex, double the desired image width. If non-positive, an `IllegalArgumentException` will be thrown. w, double the desired image height. If non-positive, an `IllegalArgumentException` will be thrown. h, boolean whether to preserve the width-to-height ratio of the image. preserveAspectRatio, boolean whether to use a smooth downscaling algorithm. smooth, float screen pixel scale (used for variable-density images) screenPixelScale, float image pixel scale (used for fixed-density images) imagePixelScale) Implements com.sun.javafx.iio.ImageLoader.load. Loads the image at a given index in an image stream.
private native long	loadImage(final InputStream stream, boolean reportProgress) Create a loader and buffer data from the InputStream.
private native long	loadImageFromURL(final String url, boolean reportProgress) Create a loader for the given URL.
private native void	resizeImage(long structPointer, int width, int height) Set native image size
private void	retrieveDelayTime()
private void	setInputParameters(int width, int height, int imageCount, int loopCount) Called by the native code when input parameters are known.
private boolean	shouldReportProgress()
private void	updateProgress(float progressPercentage)

Inherited from com.sun.javafx.iio.common.ImageLoaderImpl:: addListener emitWarning getFormatDescription removeListener updateImageMetadata updateImageProgress

Field Detail

COLOR_SPACE_MAPPING	back to summary
private static final Map<Integer, ImageStorage.ImageType> COLOR_SPACE_MAPPING

delayTime	back to summary
private int delayTime

GRAY	back to summary
public static final int GRAY These constants must match with those in native

GRAY_ALPHA	back to summary
public static final int GRAY_ALPHA

GRAY_ALPHA_PRE	back to summary
public static final int GRAY_ALPHA_PRE

inHeight	back to summary
private int inHeight

inWidth	back to summary
private int inWidth Set by native code

isDisposed	back to summary
private boolean isDisposed

loopCount	back to summary
private int loopCount

nImages	back to summary
private int nImages

PALETTE	back to summary
public static final int PALETTE

PALETTE_ALPHA	back to summary
public static final int PALETTE_ALPHA

PALETTE_ALPHA_PRE	back to summary
public static final int PALETTE_ALPHA_PRE

PALETTE_TRANS	back to summary
public static final int PALETTE_TRANS

RGB	back to summary
public static final int RGB

RGBA	back to summary
public static final int RGBA

RGBA_PRE	back to summary
public static final int RGBA_PRE

structPointer	back to summary
private long structPointer Pointer to the native loader

Constructor Detail

IosImageLoader	back to summary
public IosImageLoader(final String urlString, final ImageDescriptor desc) throws IOException

IosImageLoader	back to summary
public IosImageLoader(final InputStream inputStream, final ImageDescriptor desc) throws IOException

Method Detail

checkNativePointer	back to summary
private void checkNativePointer() throws IOException

dispose	back to summary
public synchronized void dispose() Implements com.sun.javafx.iio.ImageLoader.dispose. Doc from com.sun.javafx.iio.ImageLoader.dispose. Disposes of any resources (such as native libraries) held by this loader. Any further invocation of any methods on this object are undefined. Annotations @Override

dispose

back to summary

public synchronized void dispose()

Implements com.sun.javafx.iio.ImageLoader.dispose.

Doc from com.sun.javafx.iio.ImageLoader.dispose.

Disposes of any resources (such as native libraries) held by this loader. Any further invocation of any methods on this object are undefined.

Annotations

@Override

disposeLoader	back to summary
private static native void disposeLoader(long structPointer) Destroy a loader.

getColorSpaceCode	back to summary
private native int getColorSpaceCode(long structPointer) Return image color space model code

getDelayTime	back to summary
private native int getDelayTime(long structPointer) Return image duration for animated images

getImageBuffer	back to summary
private native byte[] getImageBuffer(long structPointer, int imageIndex) Return a buffer with decompressed image data

getNumberOfComponents	back to summary
private native int getNumberOfComponents(long structPointer) Return the number of color components

initNativeLoading	back to summary
private static native void initNativeLoading() Set up static method IDs for calls back to Java.

load back to summary

load	back to summary
public ImageFrame load(int imageIndex, double w, double h, boolean preserveAspectRatio, boolean smooth, float screenPixelScale, float imagePixelScale) throws IOException Implements com.sun.javafx.iio.ImageLoader.load. Doc from com.sun.javafx.iio.ImageLoader.load. Loads the image at a given index in an image stream. If no image exists at that index `null` will be returned. Parameters imageIndex:int the zero-relative index of the image to load. w:double the desired image width. If non-positive, an `IllegalArgumentException` will be thrown. h:double the desired image height. If non-positive, an `IllegalArgumentException` will be thrown. preserveAspectRatio:boolean whether to preserve the width-to-height ratio of the image. smooth:boolean whether to use a smooth downscaling algorithm. screenPixelScale:float screen pixel scale (used for variable-density images) imagePixelScale:float image pixel scale (used for fixed-density images) Returns:ImageFrame the image at the specified index or `null` on error. Annotations @Override

public ImageFrame load(int imageIndex, double w, double h, boolean preserveAspectRatio, boolean smooth, float screenPixelScale, float imagePixelScale) throws IOException

Implements com.sun.javafx.iio.ImageLoader.load.

Doc from com.sun.javafx.iio.ImageLoader.load.

Loads the image at a given index in an image stream. If no image exists at that index null will be returned.

Parameters

imageIndex:int: the zero-relative index of the image to load.
w:double: the desired image width. If non-positive, an IllegalArgumentException will be thrown.
h:double: the desired image height. If non-positive, an IllegalArgumentException will be thrown.
preserveAspectRatio:boolean: whether to preserve the width-to-height ratio of the image.
smooth:boolean: whether to use a smooth downscaling algorithm.
screenPixelScale:float: screen pixel scale (used for variable-density images)
imagePixelScale:float: image pixel scale (used for fixed-density images)

Returns:ImageFrame

the image at the specified index or null on error.