1 files changed, 0 insertions, 157 deletions
diff --git a/java/src/com/android/inputmethod/latin/SwipeTracker.java b/java/src/com/android/inputmethod/latin/SwipeTracker.java
deleted file mode 100644
index 970e91965..000000000
--- a/java/src/com/android/inputmethod/latin/SwipeTracker.java
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
- * Copyright (C) 2010 Google Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
-package com.android.inputmethod.latin;
-
-import android.view.MotionEvent;
-
-class SwipeTracker {
-    private static final int NUM_PAST = 4;
-    private static final int LONGEST_PAST_TIME = 200;
-
-    final EventRingBuffer mBuffer = new EventRingBuffer(NUM_PAST);
-
-    private float mYVelocity;
-    private float mXVelocity;
-
-    public void addMovement(MotionEvent ev) {
-        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
-            mBuffer.clear();
-            return;
-        }
-        long time = ev.getEventTime();
-        final int count = ev.getHistorySize();
-        for (int i = 0; i < count; i++) {
-            addPoint(ev.getHistoricalX(i), ev.getHistoricalY(i), ev.getHistoricalEventTime(i));
-        }
-        addPoint(ev.getX(), ev.getY(), time);
-    }
-
-    private void addPoint(float x, float y, long time) {
-        final EventRingBuffer buffer = mBuffer;
-        while (buffer.size() > 0) {
-            long lastT = buffer.getTime(0);
-            if (lastT >= time - LONGEST_PAST_TIME)
-                break;
-            buffer.dropOldest();
-        }
-        buffer.add(x, y, time);
-    }
-
-    public void computeCurrentVelocity(int units) {
-        computeCurrentVelocity(units, Float.MAX_VALUE);
-    }
-
-    public void computeCurrentVelocity(int units, float maxVelocity) {
-        final EventRingBuffer buffer = mBuffer;
-        final float oldestX = buffer.getX(0);
-        final float oldestY = buffer.getY(0);
-        final long oldestTime = buffer.getTime(0);
-
-        float accumX = 0;
-        float accumY = 0;
-        final int count = buffer.size();
-        for (int pos = 1; pos < count; pos++) {
-            final int dur = (int)(buffer.getTime(pos) - oldestTime);
-            if (dur == 0) continue;
-            float dist = buffer.getX(pos) - oldestX;
-            float vel = (dist / dur) * units;   // pixels/frame.
-            if (accumX == 0) accumX = vel;
-            else accumX = (accumX + vel) * .5f;
-
-            dist = buffer.getY(pos) - oldestY;
-            vel = (dist / dur) * units;   // pixels/frame.
-            if (accumY == 0) accumY = vel;
-            else accumY = (accumY + vel) * .5f;
-        }
-        mXVelocity = accumX < 0.0f ? Math.max(accumX, -maxVelocity)
-                : Math.min(accumX, maxVelocity);
-        mYVelocity = accumY < 0.0f ? Math.max(accumY, -maxVelocity)
-                : Math.min(accumY, maxVelocity);
-    }
-
-    public float getXVelocity() {
-        return mXVelocity;
-    }
-
-    public float getYVelocity() {
-        return mYVelocity;
-    }
-
-    static class EventRingBuffer {
-        private final int bufSize;
-        private final float xBuf[];
-        private final float yBuf[];
-        private final long timeBuf[];
-        private int top;  // points new event
-        private int end;  // points oldest event
-        private int count; // the number of valid data
-
-        public EventRingBuffer(int max) {
-            this.bufSize = max;
-            xBuf = new float[max];
-            yBuf = new float[max];
-            timeBuf = new long[max];
-            clear();
-        }
-
-        public void clear() {
-            top = end = count = 0;
-        }
-
-        public int size() {
-            return count;
-        }
-
-        // Position 0 points oldest event
-        private int index(int pos) {
-            return (end + pos) % bufSize;
-        }
-
-        private int advance(int index) {
-            return (index + 1) % bufSize;
-        }
-
-        public void add(float x, float y, long time) {
-            xBuf[top] = x;
-            yBuf[top] = y;
-            timeBuf[top] = time;
-            top = advance(top);
-            if (count < bufSize) {
-                count++;
-            } else {
-                end = advance(end);
-            }
-        }
-
-        public float getX(int pos) {
-            return xBuf[index(pos)];
-        }
-
-        public float getY(int pos) {
-            return yBuf[index(pos)];
-        }
-
-        public long getTime(int pos) {
-            return timeBuf[index(pos)];
-        }
-
-        public void dropOldest() {
-            count--;
-            end = advance(end);
-        }
-    }
-}
-\ No newline at end of file