--- a/jdk/src/share/classes/javax/swing/colorchooser/SyntheticImage.java Fri Oct 10 13:29:11 2008 -0700
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,166 +0,0 @@
-/*
- * Copyright 1997-2003 Sun Microsystems, Inc. All Rights Reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Sun designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Sun in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- */
-
-package javax.swing.colorchooser;
-
-import java.awt.*;
-import java.awt.image.*;
-
-/** A helper class to make computing synthetic images a little easier.
- * All you need to do is define a subclass that overrides computeRow
- * to compute a row of the image. It is passed the y coordinate of the
- * row and an array into which to put the pixels in
- * <a href="http://java.sun.com/products/jdk/1.1/docs/api/java.awt.image.ColorModel.html#getRGBdefault()">
- * standard ARGB format</a>.
- * <p>Normal usage looks something like this:
- * <pre> Image i = createImage(new SyntheticImage(200, 100) {
- * protected void computeRow(int y, int[] row) {
- * for(int i = width; --i>=0; ) {
- * int grey = i*255/(width-1);
- * row[i] = (255<<24)|(grey<<16)|(grey<<8)|grey;
- * }
- * }
- * }
- * </pre>This creates a image 200 pixels wide and 100 pixels high
- * that is a horizontal grey ramp, going from black on the left to
- * white on the right.
- * <p>
- * If the image is to be a movie, override isStatic to return false,
- * <i>y</i> cycling back to 0 is computeRow's signal that the next
- * frame has started. It is acceptable (expected?) for computeRow(0,r)
- * to pause until the appropriate time to start the next frame.
- *
- * @author James Gosling
- */
-abstract class SyntheticImage implements ImageProducer {
- private SyntheticImageGenerator root;
- protected int width=10, height=100;
- static final ColorModel cm = ColorModel.getRGBdefault();
- public static final int pixMask = 0xFF;
- private Thread runner;
- protected SyntheticImage() { }
- protected SyntheticImage(int w, int h) { width = w; height = h; }
- protected void computeRow(int y, int[] row) {
- int p = 255-255*y/(height-1);
- p = (pixMask<<24)|(p<<16)|(p<<8)|p;
- for (int i = row.length; --i>=0; ) row[i] = p;
- }
- public synchronized void addConsumer(ImageConsumer ic){
- for (SyntheticImageGenerator ics = root; ics != null; ics = ics.next)
- if (ics.ic == ic) return;
- root = new SyntheticImageGenerator(ic, root, this);
- }
- public synchronized boolean isConsumer(ImageConsumer ic){
- for (SyntheticImageGenerator ics = root; ics != null; ics = ics.next)
- if (ics.ic == ic) return true;
- return false;
- }
- public synchronized void removeConsumer(ImageConsumer ic) {
- SyntheticImageGenerator prev = null;
- for (SyntheticImageGenerator ics = root; ics != null; ics = ics.next) {
- if (ics.ic == ic) {
- ics.useful = false;
- if (prev!=null) prev.next = ics.next;
- else root = ics.next;
- return;
- }
- prev = ics;
- }
- }
- public synchronized void startProduction(ImageConsumer ic) {
- addConsumer(ic);
- for (SyntheticImageGenerator ics = root; ics != null; ics = ics.next)
- if (ics.useful && !ics.isAlive())
- ics.start();
- }
- protected boolean isStatic() { return true; }
- public void nextFrame(int param) {}//Override if !isStatic
- public void requestTopDownLeftRightResend(ImageConsumer ic){}
-
- protected volatile boolean aborted = false;
-}
-
-class SyntheticImageGenerator extends Thread {
- ImageConsumer ic;
- boolean useful;
- SyntheticImageGenerator next;
- SyntheticImage parent;
- SyntheticImageGenerator(ImageConsumer ic, SyntheticImageGenerator next,
- SyntheticImage parent) {
- super("SyntheticImageGenerator");
- this.ic = ic;
- this.next = next;
- this.parent = parent;
- useful = true;
- setDaemon(true);
- }
- public void run() {
- ImageConsumer ic = this.ic;
- int w = parent.width;
- int h = parent.height;
- int hints = ic.SINGLEPASS|ic.COMPLETESCANLINES|ic.TOPDOWNLEFTRIGHT;
- if (parent.isStatic())
- hints |= ic.SINGLEFRAME;
- ic.setHints(hints);
- ic.setDimensions(w, h);
- ic.setProperties(null);
- ic.setColorModel(parent.cm);
-
- if (useful) {
- int[] row=new int[w];
- doPrivileged( new Runnable() {
- public void run() {
- Thread.currentThread().setPriority(Thread.MIN_PRIORITY);
- }
- });
-
- do {
- for (int y = 0; y<h && useful; y++) {
- parent.computeRow(y,row);
-
- if (parent.aborted) {
- ic.imageComplete(ic.IMAGEABORTED);
- return;
- }
-
- ic.setPixels(0, y, w, 1, parent.cm, row, 0, w);
- }
- ic.imageComplete(parent.isStatic() ? ic.STATICIMAGEDONE
- : ic.SINGLEFRAMEDONE );
- } while(!parent.isStatic() && useful);
- }
- }
-
- private final static void doPrivileged(final Runnable doRun) {
- java.security.AccessController.doPrivileged(
- new java.security.PrivilegedAction() {
- public Object run() {
- doRun.run();
- return null;
- }
- }
- );
- }
-}