components/visual-panels/core/src/java/util/com/oracle/solaris/vp/util/misc/event/IntervalEventQueue.java
--- a/components/visual-panels/core/src/java/util/com/oracle/solaris/vp/util/misc/event/IntervalEventQueue.java Tue Dec 16 05:53:51 2014 -0800
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,146 +0,0 @@
-/*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
-
-/*
- * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
- */
-
-package com.oracle.solaris.vp.util.misc.event;
-
-public class IntervalEventQueue {
- //
- // Enums
- //
-
- public enum Type {
- ADD,
- REMOVE,
- }
-
- //
- // Instance data
- //
-
- private IntervalEventSource source;
- private IntervalListeners listeners;
- private Type type;
- private int first;
- private int last;
-
- //
- // Constructors
- //
-
- public IntervalEventQueue(IntervalEventSource source,
- IntervalListeners listeners) {
-
- this.source = source;
- this.listeners = listeners;
- }
-
- //
- // IntervalEventQueue methods
- //
-
- public synchronized void addInterval(int f, int l, Type t) {
- if (f > l || f < 0)
- throw new IllegalArgumentException(Integer.toString(f));
-
- /*
- * We need to map l and f to pre-previous-removes values so we
- * can accurately compare them to first and last. (The tests we
- * perform are invariant under addition, so we only need to do
- * this for removes).
- */
- int rawf = f;
- int rawl = l;
- if (type == Type.REMOVE && t == Type.REMOVE) {
- int total = last - first + 1;
- if (f >= first)
- f += total;
- if (l >= first)
- l += total;
- }
-
- /*
- * If this is a new event type or a disjoint interval, flush
- * and start with a fresh interval.
- */
- if (t != type || l < first - 1 || f > last + 1) {
- flush();
- first = rawf;
- last = rawl;
- type = t;
- return;
- }
-
- /*
- * Extend the range as necessary.
- */
- if (type == Type.REMOVE) {
- /*
- * We abut or straddle the existing range; extend the
- * appropriate limits.
- */
- first = Math.min(f, first);
- last = Math.max(l, last);
- } else {
- /*
- * We're inserting into the existing range; add our length
- * to its.
- */
- last += (l - f + 1);
- }
- }
-
- public void addIndex(int index, Type type) {
- addInterval(index, index, type);
- }
-
- public synchronized void flush() {
- if (type != null) {
- switch (type) {
- case ADD:
- listeners.intervalAdded(
- new IntervalEvent(source, first, last));
- break;
-
- case REMOVE:
- listeners.intervalRemoved(
- new IntervalEvent(source, first, last));
- break;
- }
- }
- type = null;
- }
-
- public synchronized int getFirstIndex() {
- return first;
- }
-
- public synchronized int getLastIndex() {
- return last;
- }
-
- public synchronized Type getType() {
- return type;
- }
-}