+++ /dev/null
-/* MediaTracker.java -- Class used for keeping track of images
- Copyright (C) 1999, 2002 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath 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 for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-
-package java.awt;
-
-import java.util.ArrayList;
-import java.awt.image.ImageObserver;
-
-/**
- * This class is used for keeping track of the status of various media
- * objects.
- *
- * @author Aaron M. Renn (arenn@urbanophile.com)
- * @author Bryce McKinlay
- */
-public class MediaTracker implements java.io.Serializable
-{
- public static final int LOADING = 1 << 0;
- public static final int ABORTED = 1 << 1;
- public static final int ERRORED = 1 << 2;
- public static final int COMPLETE = 1 << 3;
-
- Component target;
- MediaEntry head;
-
- static final long serialVersionUID = -483174189758638095L;
-
- // FIXME: The serialized form documentation says MediaEntry is a
- // serializable field, but the serialized form of MediaEntry itself
- // doesn't appear to be documented.
- class MediaEntry implements ImageObserver
- {
- int id;
- Image image;
- MediaEntry next;
- int status;
- int width;
- int height;
-
- public boolean imageUpdate(Image img, int flags, int x, int y,
- int width, int height)
- {
- if ((flags & ABORT) != 0)
- status = ABORTED & COMPLETE;
- else if ((flags & ERROR) != 0)
- status = ERRORED & COMPLETE;
- else if ((flags & ALLBITS) != 0)
- status = COMPLETE;
- else
- status = LOADING;
-
- synchronized (MediaTracker.this)
- {
- MediaTracker.this.notifyAll();
- }
-
- return ((status & COMPLETE) != 0);
- }
- }
-
- public MediaTracker(Component c)
- {
- target = c;
- }
-
- public void addImage(Image image, int id)
- {
- MediaEntry e = new MediaEntry();
- e.id = id;
- e.image = image;
- e.next = head;
- head = e;
- // Start tracking image status.
- target.checkImage(image, e);
- }
-
- public void addImage(Image image, int id, int width, int height)
- {
- MediaEntry e = new MediaEntry();
- e.id = id;
- e.image = image;
- e.next = head;
- e.width = width;
- e.height = height;
- head = e;
- // Start tracking image status.
- target.checkImage(image, width, height, e);
- }
-
- public boolean checkAll()
- {
- return checkAll(false);
- }
-
- public boolean checkAll(boolean load)
- {
- MediaEntry e = head;
- boolean result = true;
-
- while (e != null)
- {
- if ((e.status & COMPLETE) == 0)
- {
- if (load)
- {
- result = false;
- if (e.status == 0)
- {
- target.prepareImage(e.image, e);
- e.status = LOADING;
- }
- }
- else
- return false;
- }
- e = e.next;
- }
- return result;
- }
-
- public boolean isErrorAny()
- {
- MediaEntry e = head;
- while (e != null)
- {
- if ((e.status & ERRORED) != 0)
- return true;
- e = e.next;
- }
- return false;
- }
-
- public Object[] getErrorsAny()
- {
- MediaEntry e = head;
- ArrayList result = null;
- while (e != null)
- {
- if ((e.status & ERRORED) != 0)
- {
- if (result == null)
- result = new ArrayList();
- result.add(e.image);
- }
- e = e.next;
- }
- if (result == null)
- return null;
- else
- return result.toArray();
- }
-
- public void waitForAll() throws InterruptedException
- {
- synchronized (this)
- {
- while (checkAll(true) == false)
- wait();
- }
- }
-
- public boolean waitForAll(long ms) throws InterruptedException
- {
- long start = System.currentTimeMillis();
- synchronized (this)
- {
- while (!checkAll(true))
- wait(ms);
- }
- if ((System.currentTimeMillis() - start) < ms)
- return true;
- else
- return false;
- }
-
- public int statusAll(boolean load)
- {
- int result = 0;
- MediaEntry e = head;
- while (e != null)
- {
- if (load && e.status == 0)
- {
- target.prepareImage(e.image, e);
- e.status = LOADING;
- }
- result |= e.status;
- e = e.next;
- }
- return result;
- }
-
- public boolean checkID(int id)
- {
- return checkID(id, false);
- }
-
- public boolean checkID(int id, boolean load)
- {
- MediaEntry e = head;
- boolean result = true;
-
- while (e != null)
- {
- if (e.id == id && ((e.status & COMPLETE) == 0))
- {
- if (load)
- {
- result = false;
- if (e.status == 0)
- {
- target.prepareImage(e.image, e);
- e.status = LOADING;
- }
- }
- else
- return false;
- }
- e = e.next;
- }
- return result;
- }
-
- public boolean isErrorID(int id)
- {
- MediaEntry e = head;
- while (e != null)
- {
- if (e.id == id && ((e.status & ERRORED) != 0))
- return true;
- e = e.next;
- }
- return false;
- }
-
- public Object[] getErrorsID(int id)
- {
- MediaEntry e = head;
- ArrayList result = null;
- while (e != null)
- {
- if (e.id == id && ((e.status & ERRORED) != 0))
- {
- if (result == null)
- result = new ArrayList();
- result.add(e.image);
- }
- e = e.next;
- }
- if (result == null)
- return null;
- else
- return result.toArray();
- }
-
- public void waitForID(int id) throws InterruptedException
- {
- MediaEntry e = head;
- synchronized (this)
- {
- while (checkID (id, true) == false)
- wait();
- }
- }
-
- public boolean waitForID(int id, long ms) throws InterruptedException
- {
- MediaEntry e = head;
- long start = System.currentTimeMillis();
- synchronized (this)
- {
- while (checkID (id, true) == false)
- wait(ms);
- }
- if ((System.currentTimeMillis() - start) < ms)
- return true;
- else
- return false;
- }
-
- public int statusID(int id, boolean load)
- {
- int result = 0;
- MediaEntry e = head;
- while (e != null)
- {
- if (e.id == id)
- {
- if (load && e.status == 0)
- {
- target.prepareImage(e.image, e);
- e.status = LOADING;
- }
- result |= e.status;
- }
- e = e.next;
- }
- return result;
- }
-
- public void removeImage(Image image)
- {
- MediaEntry e = head;
- MediaEntry prev = null;
- while (e != null)
- {
- if (e.image == image)
- {
- if (prev == null)
- head = e.next;
- else
- prev.next = e.next;
- }
- prev = e;
- e = e.next;
- }
- }
-
- public void removeImage(Image image, int id)
- {
- MediaEntry e = head;
- MediaEntry prev = null;
- while (e != null)
- {
- if (e.id == id && e.image == image)
- {
- if (prev == null)
- head = e.next;
- else
- prev.next = e.next;
- }
- else
- prev = e;
- e = e.next;
- }
- }
-
- public void removeImage(Image image, int id, int width, int height)
- {
- MediaEntry e = head;
- MediaEntry prev = null;
- while (e != null)
- {
- if (e.id == id && e.image == image
- && e.width == width && e.height == height)
- {
- if (prev == null)
- head = e.next;
- else
- prev.next = e.next;
- }
- else
- prev = e;
- e = e.next;
- }
- }
-}
projects / msp430-gcc.git / blobdiff