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JRE 8 rt.jar - javax.* Package Source Code
JRE 8 rt.jar is the JAR file for JRE 8 RT (Runtime) libraries.
JRE (Java Runtime) 8 is the runtime environment included in JDK 8.
JRE 8 rt.jar libraries are divided into 6 packages:
com.* - Internal Oracle and Sun Microsystems libraries java.* - Standard Java API libraries. javax.* - Extended Java API libraries. jdk.* - JDK supporting libraries. org.* - Third party libraries. sun.* - Old libraries developed by Sun Microsystems.
JAR File Information:
Directory of C:\fyicenter\jdk-1.8.0_191\jre\lib 63,596,151 rt.jar
Here is the list of Java classes of the javax.* package in JRE 1.8.0_191 rt.jar. Java source codes are also provided.
✍: FYIcenter
⏎ javax/imageio/IIOParam.java
/* * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package javax.imageio; import java.awt.Point; import java.awt.Rectangle; /** * A superclass of all classes describing how streams should be * decoded or encoded. This class contains all the variables and * methods that are shared by <code>ImageReadParam</code> and * <code>ImageWriteParam</code>. * * <p> This class provides mechanisms to specify a source region and a * destination region. When reading, the source is the stream and * the in-memory image is the destination. When writing, these are * reversed. In the case of writing, destination regions may be used * only with a writer that supports pixel replacement. * <p> * Decimation subsampling may be specified for both readers * and writers, using a movable subsampling grid. * <p> * Subsets of the source and destination bands may be selected. * */ public abstract class IIOParam { /** * The source region, on <code>null</code> if none is set. */ protected Rectangle sourceRegion = null; /** * The decimation subsampling to be applied in the horizontal * direction. By default, the value is <code>1</code>. * The value must not be negative or 0. */ protected int sourceXSubsampling = 1; /** * The decimation subsampling to be applied in the vertical * direction. By default, the value is <code>1</code>. * The value must not be negative or 0. */ protected int sourceYSubsampling = 1; /** * A horizontal offset to be applied to the subsampling grid before * subsampling. The first pixel to be used will be offset this * amount from the origin of the region, or of the image if no * region is specified. */ protected int subsamplingXOffset = 0; /** * A vertical offset to be applied to the subsampling grid before * subsampling. The first pixel to be used will be offset this * amount from the origin of the region, or of the image if no * region is specified. */ protected int subsamplingYOffset = 0; /** * An array of <code>int</code>s indicating which source bands * will be used, or <code>null</code>. If <code>null</code>, the * set of source bands to be used is as described in the comment * for the <code>setSourceBands</code> method. No value should * be allowed to be negative. */ protected int[] sourceBands = null; /** * An <code>ImageTypeSpecifier</code> to be used to generate a * destination image when reading, or to set the output color type * when writing. If non has been set the value will be * <code>null</code>. By default, the value is <code>null</code>. */ protected ImageTypeSpecifier destinationType = null; /** * The offset in the destination where the upper-left decoded * pixel should be placed. By default, the value is (0, 0). */ protected Point destinationOffset = new Point(0, 0); /** * The default <code>IIOParamController</code> that will be * used to provide settings for this <code>IIOParam</code> * object when the <code>activateController</code> method * is called. This default should be set by subclasses * that choose to provide their own default controller, * usually a GUI, for setting parameters. * * @see IIOParamController * @see #getDefaultController * @see #activateController */ protected IIOParamController defaultController = null; /** * The <code>IIOParamController</code> that will be * used to provide settings for this <code>IIOParam</code> * object when the <code>activateController</code> method * is called. This value overrides any default controller, * even when null. * * @see IIOParamController * @see #setController(IIOParamController) * @see #hasController() * @see #activateController() */ protected IIOParamController controller = null; /** * Protected constructor may be called only by subclasses. */ protected IIOParam() { controller = defaultController; } /** * Sets the source region of interest. The region of interest is * described as a rectangle, with the upper-left corner of the * source image as pixel (0, 0) and increasing values down and to * the right. The actual number of pixels used will depend on * the subsampling factors set by <code>setSourceSubsampling</code>. * If subsampling has been set such that this number is zero, * an <code>IllegalStateException</code> will be thrown. * * <p> The source region of interest specified by this method will * be clipped as needed to fit within the source bounds, as well * as the destination offsets, width, and height at the time of * actual I/O. * * <p> A value of <code>null</code> for <code>sourceRegion</code> * will remove any region specification, causing the entire image * to be used. * * @param sourceRegion a <code>Rectangle</code> specifying the * source region of interest, or <code>null</code>. * * @exception IllegalArgumentException if * <code>sourceRegion</code> is non-<code>null</code> and either * <code>sourceRegion.x</code> or <code>sourceRegion.y</code> is * negative. * @exception IllegalArgumentException if * <code>sourceRegion</code> is non-<code>null</code> and either * <code>sourceRegion.width</code> or * <code>sourceRegion.height</code> is negative or 0. * @exception IllegalStateException if subsampling is such that * this region will have a subsampled width or height of zero. * * @see #getSourceRegion * @see #setSourceSubsampling * @see ImageReadParam#setDestinationOffset * @see ImageReadParam#getDestinationOffset */ public void setSourceRegion(Rectangle sourceRegion) { if (sourceRegion == null) { this.sourceRegion = null; return; } if (sourceRegion.x < 0) { throw new IllegalArgumentException("sourceRegion.x < 0!"); } if (sourceRegion.y < 0){ throw new IllegalArgumentException("sourceRegion.y < 0!"); } if (sourceRegion.width <= 0) { throw new IllegalArgumentException("sourceRegion.width <= 0!"); } if (sourceRegion.height <= 0) { throw new IllegalArgumentException("sourceRegion.height <= 0!"); } // Throw an IllegalStateException if region falls between subsamples if (sourceRegion.width <= subsamplingXOffset) { throw new IllegalStateException ("sourceRegion.width <= subsamplingXOffset!"); } if (sourceRegion.height <= subsamplingYOffset) { throw new IllegalStateException ("sourceRegion.height <= subsamplingYOffset!"); } this.sourceRegion = (Rectangle)sourceRegion.clone(); } /** * Returns the source region to be used. The returned value is * that set by the most recent call to * <code>setSourceRegion</code>, and will be <code>null</code> if * there is no region set. * * @return the source region of interest as a * <code>Rectangle</code>, or <code>null</code>. * * @see #setSourceRegion */ public Rectangle getSourceRegion() { if (sourceRegion == null) { return null; } return (Rectangle)sourceRegion.clone(); } /** * Specifies a decimation subsampling to apply on I/O. The * <code>sourceXSubsampling</code> and * <code>sourceYSubsampling</code> parameters specify the * subsampling period (<i>i.e.</i>, the number of rows and columns * to advance after every source pixel). Specifically, a period of * 1 will use every row or column; a period of 2 will use every * other row or column. The <code>subsamplingXOffset</code> and * <code>subsamplingYOffset</code> parameters specify an offset * from the region (or image) origin for the first subsampled pixel. * Adjusting the origin of the subsample grid is useful for avoiding * seams when subsampling a very large source image into destination * regions that will be assembled into a complete subsampled image. * Most users will want to simply leave these parameters at 0. * * <p> The number of pixels and scanlines to be used are calculated * as follows. * <p> * The number of subsampled pixels in a scanline is given by * <p> * <code>truncate[(width - subsamplingXOffset + sourceXSubsampling - 1) * / sourceXSubsampling]</code>. * <p> * If the region is such that this width is zero, an * <code>IllegalStateException</code> is thrown. * <p> * The number of scanlines to be used can be computed similarly. * * <p>The ability to set the subsampling grid to start somewhere * other than the source region origin is useful if the * region is being used to create subsampled tiles of a large image, * where the tile width and height are not multiples of the * subsampling periods. If the subsampling grid does not remain * consistent from tile to tile, there will be artifacts at the tile * boundaries. By adjusting the subsampling grid offset for each * tile to compensate, these artifacts can be avoided. The tradeoff * is that in order to avoid these artifacts, the tiles are not all * the same size. The grid offset to use in this case is given by: * <br> * grid offset = [period - (region offset modulo period)] modulo period) * * <p> If either <code>sourceXSubsampling</code> or * <code>sourceYSubsampling</code> is 0 or negative, an * <code>IllegalArgumentException</code> will be thrown. * * <p> If either <code>subsamplingXOffset</code> or * <code>subsamplingYOffset</code> is negative or greater than or * equal to the corresponding period, an * <code>IllegalArgumentException</code> will be thrown. * * <p> There is no <code>unsetSourceSubsampling</code> method; * simply call <code>setSourceSubsampling(1, 1, 0, 0)</code> to * restore default values. * * @param sourceXSubsampling the number of columns to advance * between pixels. * @param sourceYSubsampling the number of rows to advance between * pixels. * @param subsamplingXOffset the horizontal offset of the first subsample * within the region, or within the image if no region is set. * @param subsamplingYOffset the horizontal offset of the first subsample * within the region, or within the image if no region is set. * @exception IllegalArgumentException if either period is * negative or 0, or if either grid offset is negative or greater than * the corresponding period. * @exception IllegalStateException if the source region is such that * the subsampled output would contain no pixels. */ public void setSourceSubsampling(int sourceXSubsampling, int sourceYSubsampling, int subsamplingXOffset, int subsamplingYOffset) { if (sourceXSubsampling <= 0) { throw new IllegalArgumentException("sourceXSubsampling <= 0!"); } if (sourceYSubsampling <= 0) { throw new IllegalArgumentException("sourceYSubsampling <= 0!"); } if (subsamplingXOffset < 0 || subsamplingXOffset >= sourceXSubsampling) { throw new IllegalArgumentException ("subsamplingXOffset out of range!"); } if (subsamplingYOffset < 0 || subsamplingYOffset >= sourceYSubsampling) { throw new IllegalArgumentException ("subsamplingYOffset out of range!"); } // Throw an IllegalStateException if region falls between subsamples if (sourceRegion != null) { if (subsamplingXOffset >= sourceRegion.width || subsamplingYOffset >= sourceRegion.height) { throw new IllegalStateException("region contains no pixels!"); } } this.sourceXSubsampling = sourceXSubsampling; this.sourceYSubsampling = sourceYSubsampling; this.subsamplingXOffset = subsamplingXOffset; this.subsamplingYOffset = subsamplingYOffset; } /** * Returns the number of source columns to advance for each pixel. * * <p>If <code>setSourceSubsampling</code> has not been called, 1 * is returned (which is the correct value). * * @return the source subsampling X period. * * @see #setSourceSubsampling * @see #getSourceYSubsampling */ public int getSourceXSubsampling() { return sourceXSubsampling; } /** * Returns the number of rows to advance for each pixel. * * <p>If <code>setSourceSubsampling</code> has not been called, 1 * is returned (which is the correct value). * * @return the source subsampling Y period. * * @see #setSourceSubsampling * @see #getSourceXSubsampling */ public int getSourceYSubsampling() { return sourceYSubsampling; } /** * Returns the horizontal offset of the subsampling grid. * * <p>If <code>setSourceSubsampling</code> has not been called, 0 * is returned (which is the correct value). * * @return the source subsampling grid X offset. * * @see #setSourceSubsampling * @see #getSubsamplingYOffset */ public int getSubsamplingXOffset() { return subsamplingXOffset; } /** * Returns the vertical offset of the subsampling grid. * * <p>If <code>setSourceSubsampling</code> has not been called, 0 * is returned (which is the correct value). * * @return the source subsampling grid Y offset. * * @see #setSourceSubsampling * @see #getSubsamplingXOffset */ public int getSubsamplingYOffset() { return subsamplingYOffset; } /** * Sets the indices of the source bands to be used. Duplicate * indices are not allowed. * * <p> A <code>null</code> value indicates that all source bands * will be used. * * <p> At the time of reading, an * <code>IllegalArgumentException</code> will be thrown by the * reader or writer if a value larger than the largest available * source band index has been specified or if the number of source * bands and destination bands to be used differ. The * <code>ImageReader.checkReadParamBandSettings</code> method may * be used to automate this test. * * <p> Semantically, a copy is made of the array; changes to the * array contents subsequent to this call have no effect on * this <code>IIOParam</code>. * * @param sourceBands an array of integer band indices to be * used. * * @exception IllegalArgumentException if <code>sourceBands</code> * contains a negative or duplicate value. * * @see #getSourceBands * @see ImageReadParam#setDestinationBands * @see ImageReader#checkReadParamBandSettings */ public void setSourceBands(int[] sourceBands) { if (sourceBands == null) { this.sourceBands = null; } else { int numBands = sourceBands.length; for (int i = 0; i < numBands; i++) { int band = sourceBands[i]; if (band < 0) { throw new IllegalArgumentException("Band value < 0!"); } for (int j = i + 1; j < numBands; j++) { if (band == sourceBands[j]) { throw new IllegalArgumentException("Duplicate band value!"); } } } this.sourceBands = (int[])(sourceBands.clone()); } } /** * Returns the set of of source bands to be used. The returned * value is that set by the most recent call to * <code>setSourceBands</code>, or <code>null</code> if there have * been no calls to <code>setSourceBands</code>. * * <p> Semantically, the array returned is a copy; changes to * array contents subsequent to this call have no effect on this * <code>IIOParam</code>. * * @return the set of source bands to be used, or * <code>null</code>. * * @see #setSourceBands */ public int[] getSourceBands() { if (sourceBands == null) { return null; } return (int[])(sourceBands.clone()); } /** * Sets the desired image type for the destination image, using an * <code>ImageTypeSpecifier</code>. * * <p> When reading, if the layout of the destination has been set * using this method, each call to an <code>ImageReader</code> * <code>read</code> method will return a new * <code>BufferedImage</code> using the format specified by the * supplied type specifier. As a side effect, any destination * <code>BufferedImage</code> set by * <code>ImageReadParam.setDestination(BufferedImage)</code> will * no longer be set as the destination. In other words, this * method may be thought of as calling * <code>setDestination((BufferedImage)null)</code>. * * <p> When writing, the destination type maybe used to determine * the color type of the image. The <code>SampleModel</code> * information will be ignored, and may be <code>null</code>. For * example, a 4-banded image could represent either CMYK or RGBA * data. If a destination type is set, its * <code>ColorModel</code> will override any * <code>ColorModel</code> on the image itself. This is crucial * when <code>setSourceBands</code> is used since the image's * <code>ColorModel</code> will refer to the entire image rather * than to the subset of bands being written. * * @param destinationType the <code>ImageTypeSpecifier</code> to * be used to determine the destination layout and color type. * * @see #getDestinationType */ public void setDestinationType(ImageTypeSpecifier destinationType) { this.destinationType = destinationType; } /** * Returns the type of image to be returned by the read, if one * was set by a call to * <code>setDestination(ImageTypeSpecifier)</code>, as an * <code>ImageTypeSpecifier</code>. If none was set, * <code>null</code> is returned. * * @return an <code>ImageTypeSpecifier</code> describing the * destination type, or <code>null</code>. * * @see #setDestinationType */ public ImageTypeSpecifier getDestinationType() { return destinationType; } /** * Specifies the offset in the destination image at which future * decoded pixels are to be placed, when reading, or where a * region will be written, when writing. * * <p> When reading, the region to be written within the * destination <code>BufferedImage</code> will start at this * offset and have a width and height determined by the source * region of interest, the subsampling parameters, and the * destination bounds. * * <p> Normal writes are not affected by this method, only writes * performed using <code>ImageWriter.replacePixels</code>. For * such writes, the offset specified is within the output stream * image whose pixels are being modified. * * <p> There is no <code>unsetDestinationOffset</code> method; * simply call <code>setDestinationOffset(new Point(0, 0))</code> to * restore default values. * * @param destinationOffset the offset in the destination, as a * <code>Point</code>. * * @exception IllegalArgumentException if * <code>destinationOffset</code> is <code>null</code>. * * @see #getDestinationOffset * @see ImageWriter#replacePixels */ public void setDestinationOffset(Point destinationOffset) { if (destinationOffset == null) { throw new IllegalArgumentException("destinationOffset == null!"); } this.destinationOffset = (Point)destinationOffset.clone(); } /** * Returns the offset in the destination image at which pixels are * to be placed. * * <p> If <code>setDestinationOffsets</code> has not been called, * a <code>Point</code> with zero X and Y values is returned * (which is the correct value). * * @return the destination offset as a <code>Point</code>. * * @see #setDestinationOffset */ public Point getDestinationOffset() { return (Point)destinationOffset.clone(); } /** * Sets the <code>IIOParamController</code> to be used * to provide settings for this <code>IIOParam</code> * object when the <code>activateController</code> method * is called, overriding any default controller. If the * argument is <code>null</code>, no controller will be * used, including any default. To restore the default, use * <code>setController(getDefaultController())</code>. * * @param controller An appropriate * <code>IIOParamController</code>, or <code>null</code>. * * @see IIOParamController * @see #getController * @see #getDefaultController * @see #hasController * @see #activateController() */ public void setController(IIOParamController controller) { this.controller = controller; } /** * Returns whatever <code>IIOParamController</code> is currently * installed. This could be the default if there is one, * <code>null</code>, or the argument of the most recent call * to <code>setController</code>. * * @return the currently installed * <code>IIOParamController</code>, or <code>null</code>. * * @see IIOParamController * @see #setController * @see #getDefaultController * @see #hasController * @see #activateController() */ public IIOParamController getController() { return controller; } /** * Returns the default <code>IIOParamController</code>, if there * is one, regardless of the currently installed controller. If * there is no default controller, returns <code>null</code>. * * @return the default <code>IIOParamController</code>, or * <code>null</code>. * * @see IIOParamController * @see #setController(IIOParamController) * @see #getController * @see #hasController * @see #activateController() */ public IIOParamController getDefaultController() { return defaultController; } /** * Returns <code>true</code> if there is a controller installed * for this <code>IIOParam</code> object. This will return * <code>true</code> if <code>getController</code> would not * return <code>null</code>. * * @return <code>true</code> if a controller is installed. * * @see IIOParamController * @see #setController(IIOParamController) * @see #getController * @see #getDefaultController * @see #activateController() */ public boolean hasController() { return (controller != null); } /** * Activates the installed <code>IIOParamController</code> for * this <code>IIOParam</code> object and returns the resulting * value. When this method returns <code>true</code>, all values * for this <code>IIOParam</code> object will be ready for the * next read or write operation. If <code>false</code> is * returned, no settings in this object will have been disturbed * (<i>i.e.</i>, the user canceled the operation). * * <p> Ordinarily, the controller will be a GUI providing a user * interface for a subclass of <code>IIOParam</code> for a * particular plug-in. Controllers need not be GUIs, however. * * @return <code>true</code> if the controller completed normally. * * @exception IllegalStateException if there is no controller * currently installed. * * @see IIOParamController * @see #setController(IIOParamController) * @see #getController * @see #getDefaultController * @see #hasController */ public boolean activateController() { if (!hasController()) { throw new IllegalStateException("hasController() == false!"); } return getController().activate(this); } }
⏎ javax/imageio/IIOParam.java
Or download all of them as a single archive file:
File name: jre-rt-javax-1.8.0_191-src.zip File size: 5381005 bytes Release date: 2018-10-28 Download
⇒ JRE 8 rt.jar - org.* Package Source Code
2024-07-16, ≈319🔥, 7💬
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