68 lines
2.1 KiB
Java
68 lines
2.1 KiB
Java
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/*
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* Copyright (C) 2010 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package com.android.inputmethod.keyboard;
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import java.util.LinkedList;
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public class PointerTrackerQueue {
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private LinkedList<PointerTracker> mQueue = new LinkedList<PointerTracker>();
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public void add(PointerTracker tracker) {
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mQueue.add(tracker);
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}
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public int lastIndexOf(PointerTracker tracker) {
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LinkedList<PointerTracker> queue = mQueue;
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for (int index = queue.size() - 1; index >= 0; index--) {
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PointerTracker t = queue.get(index);
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if (t == tracker)
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return index;
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}
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return -1;
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}
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public void releaseAllPointersOlderThan(PointerTracker tracker, long eventTime) {
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LinkedList<PointerTracker> queue = mQueue;
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int oldestPos = 0;
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for (PointerTracker t = queue.get(oldestPos); t != tracker; t = queue.get(oldestPos)) {
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if (t.isModifier()) {
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oldestPos++;
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} else {
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t.onUpEvent(t.getLastX(), t.getLastY(), eventTime);
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t.setAlreadyProcessed();
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queue.remove(oldestPos);
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}
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}
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}
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public void releaseAllPointersExcept(PointerTracker tracker, long eventTime) {
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for (PointerTracker t : mQueue) {
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if (t == tracker)
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continue;
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t.onUpEvent(t.getLastX(), t.getLastY(), eventTime);
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t.setAlreadyProcessed();
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}
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mQueue.clear();
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if (tracker != null)
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mQueue.add(tracker);
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}
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public void remove(PointerTracker tracker) {
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mQueue.remove(tracker);
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}
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}
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