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JRE 8 rt.jar - java.* 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 java.* package in JRE 1.8.0_191 rt.jar. Java source codes are also provided.
✍: FYIcenter
⏎ java/awt/GradientPaint.java
/* * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package java.awt; import java.awt.geom.Point2D; import java.awt.geom.Rectangle2D; import java.awt.geom.AffineTransform; import java.awt.image.ColorModel; import java.beans.ConstructorProperties; /** * The <code>GradientPaint</code> class provides a way to fill * a {@link Shape} with a linear color gradient pattern. * If {@link Point} P1 with {@link Color} C1 and <code>Point</code> P2 with * <code>Color</code> C2 are specified in user space, the * <code>Color</code> on the P1, P2 connecting line is proportionally * changed from C1 to C2. Any point P not on the extended P1, P2 * connecting line has the color of the point P' that is the perpendicular * projection of P on the extended P1, P2 connecting line. * Points on the extended line outside of the P1, P2 segment can be colored * in one of two ways. * <ul> * <li> * If the gradient is cyclic then the points on the extended P1, P2 * connecting line cycle back and forth between the colors C1 and C2. * <li> * If the gradient is acyclic then points on the P1 side of the segment * have the constant <code>Color</code> C1 while points on the P2 side * have the constant <code>Color</code> C2. * </ul> * * @see Paint * @see Graphics2D#setPaint * @version 10 Feb 1997 */ public class GradientPaint implements Paint { Point2D.Float p1; Point2D.Float p2; Color color1; Color color2; boolean cyclic; /** * Constructs a simple acyclic <code>GradientPaint</code> object. * @param x1 x coordinate of the first specified * <code>Point</code> in user space * @param y1 y coordinate of the first specified * <code>Point</code> in user space * @param color1 <code>Color</code> at the first specified * <code>Point</code> * @param x2 x coordinate of the second specified * <code>Point</code> in user space * @param y2 y coordinate of the second specified * <code>Point</code> in user space * @param color2 <code>Color</code> at the second specified * <code>Point</code> * @throws NullPointerException if either one of colors is null */ public GradientPaint(float x1, float y1, Color color1, float x2, float y2, Color color2) { if ((color1 == null) || (color2 == null)) { throw new NullPointerException("Colors cannot be null"); } p1 = new Point2D.Float(x1, y1); p2 = new Point2D.Float(x2, y2); this.color1 = color1; this.color2 = color2; } /** * Constructs a simple acyclic <code>GradientPaint</code> object. * @param pt1 the first specified <code>Point</code> in user space * @param color1 <code>Color</code> at the first specified * <code>Point</code> * @param pt2 the second specified <code>Point</code> in user space * @param color2 <code>Color</code> at the second specified * <code>Point</code> * @throws NullPointerException if either one of colors or points * is null */ public GradientPaint(Point2D pt1, Color color1, Point2D pt2, Color color2) { if ((color1 == null) || (color2 == null) || (pt1 == null) || (pt2 == null)) { throw new NullPointerException("Colors and points should be non-null"); } p1 = new Point2D.Float((float)pt1.getX(), (float)pt1.getY()); p2 = new Point2D.Float((float)pt2.getX(), (float)pt2.getY()); this.color1 = color1; this.color2 = color2; } /** * Constructs either a cyclic or acyclic <code>GradientPaint</code> * object depending on the <code>boolean</code> parameter. * @param x1 x coordinate of the first specified * <code>Point</code> in user space * @param y1 y coordinate of the first specified * <code>Point</code> in user space * @param color1 <code>Color</code> at the first specified * <code>Point</code> * @param x2 x coordinate of the second specified * <code>Point</code> in user space * @param y2 y coordinate of the second specified * <code>Point</code> in user space * @param color2 <code>Color</code> at the second specified * <code>Point</code> * @param cyclic <code>true</code> if the gradient pattern should cycle * repeatedly between the two colors; <code>false</code> otherwise */ public GradientPaint(float x1, float y1, Color color1, float x2, float y2, Color color2, boolean cyclic) { this (x1, y1, color1, x2, y2, color2); this.cyclic = cyclic; } /** * Constructs either a cyclic or acyclic <code>GradientPaint</code> * object depending on the <code>boolean</code> parameter. * @param pt1 the first specified <code>Point</code> * in user space * @param color1 <code>Color</code> at the first specified * <code>Point</code> * @param pt2 the second specified <code>Point</code> * in user space * @param color2 <code>Color</code> at the second specified * <code>Point</code> * @param cyclic <code>true</code> if the gradient pattern should cycle * repeatedly between the two colors; <code>false</code> otherwise * @throws NullPointerException if either one of colors or points * is null */ @ConstructorProperties({ "point1", "color1", "point2", "color2", "cyclic" }) public GradientPaint(Point2D pt1, Color color1, Point2D pt2, Color color2, boolean cyclic) { this (pt1, color1, pt2, color2); this.cyclic = cyclic; } /** * Returns a copy of the point P1 that anchors the first color. * @return a {@link Point2D} object that is a copy of the point * that anchors the first color of this * <code>GradientPaint</code>. */ public Point2D getPoint1() { return new Point2D.Float(p1.x, p1.y); } /** * Returns the color C1 anchored by the point P1. * @return a <code>Color</code> object that is the color * anchored by P1. */ public Color getColor1() { return color1; } /** * Returns a copy of the point P2 which anchors the second color. * @return a {@link Point2D} object that is a copy of the point * that anchors the second color of this * <code>GradientPaint</code>. */ public Point2D getPoint2() { return new Point2D.Float(p2.x, p2.y); } /** * Returns the color C2 anchored by the point P2. * @return a <code>Color</code> object that is the color * anchored by P2. */ public Color getColor2() { return color2; } /** * Returns <code>true</code> if the gradient cycles repeatedly * between the two colors C1 and C2. * @return <code>true</code> if the gradient cycles repeatedly * between the two colors; <code>false</code> otherwise. */ public boolean isCyclic() { return cyclic; } /** * Creates and returns a {@link PaintContext} used to * generate a linear color gradient pattern. * See the {@link Paint#createContext specification} of the * method in the {@link Paint} interface for information * on null parameter handling. * * @param cm the preferred {@link ColorModel} which represents the most convenient * format for the caller to receive the pixel data, or {@code null} * if there is no preference. * @param deviceBounds the device space bounding box * of the graphics primitive being rendered. * @param userBounds the user space bounding box * of the graphics primitive being rendered. * @param xform the {@link AffineTransform} from user * space into device space. * @param hints the set of hints that the context object can use to * choose between rendering alternatives. * @return the {@code PaintContext} for * generating color patterns. * @see Paint * @see PaintContext * @see ColorModel * @see Rectangle * @see Rectangle2D * @see AffineTransform * @see RenderingHints */ public PaintContext createContext(ColorModel cm, Rectangle deviceBounds, Rectangle2D userBounds, AffineTransform xform, RenderingHints hints) { return new GradientPaintContext(cm, p1, p2, xform, color1, color2, cyclic); } /** * Returns the transparency mode for this <code>GradientPaint</code>. * @return an integer value representing this <code>GradientPaint</code> * object's transparency mode. * @see Transparency */ public int getTransparency() { int a1 = color1.getAlpha(); int a2 = color2.getAlpha(); return (((a1 & a2) == 0xff) ? OPAQUE : TRANSLUCENT); } }
⏎ java/awt/GradientPaint.java
Or download all of them as a single archive file:
File name: jre-rt-java-1.8.0_191-src.zip File size: 6664831 bytes Release date: 2018-10-28 Download
⇒ JRE 8 rt.jar - javax.* Package Source Code
2023-08-23, 249414👍, 4💬
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