1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
/*
* Copyright (C) 2012 The Android Open Source Project
*
* 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;
public class InputPointers {
private final ScalableIntArray mXCoordinates = new ScalableIntArray();
private final ScalableIntArray mYCoordinates = new ScalableIntArray();
private final ScalableIntArray mPointerIds = new ScalableIntArray();
private final ScalableIntArray mTimes = new ScalableIntArray();
public void addPointer(int index, int x, int y, int pointerId, int time) {
mXCoordinates.add(index, x);
mYCoordinates.add(index, y);
mPointerIds.add(index, pointerId);
mTimes.add(index, time);
}
public void addPointer(int x, int y, int pointerId, int time) {
mXCoordinates.add(x);
mYCoordinates.add(y);
mPointerIds.add(pointerId);
mTimes.add(time);
}
public void set(InputPointers ip) {
mXCoordinates.set(ip.mXCoordinates);
mYCoordinates.set(ip.mYCoordinates);
mPointerIds.set(ip.mPointerIds);
mTimes.set(ip.mTimes);
}
public void copy(InputPointers ip) {
mXCoordinates.copy(ip.mXCoordinates);
mYCoordinates.copy(ip.mYCoordinates);
mPointerIds.copy(ip.mPointerIds);
mTimes.copy(ip.mTimes);
}
/**
* Append the pointers in the specified {@link InputPointers} to the end of this.
* @param src the source {@link InputPointers} to append the pointers.
* @param startPos the starting index of the pointers in {@code src}.
* @param length the number of pointers to be appended.
*/
public void append(InputPointers src, int startPos, int length) {
final int currentLength = getPointerSize();
final int newLength = currentLength + length;
mXCoordinates.ensureCapacity(newLength);
mYCoordinates.ensureCapacity(newLength);
mPointerIds.ensureCapacity(newLength);
mTimes.ensureCapacity(newLength);
System.arraycopy(src.getXCoordinates(), startPos, getXCoordinates(), currentLength, length);
System.arraycopy(src.getYCoordinates(), startPos, getYCoordinates(), currentLength, length);
System.arraycopy(src.getPointerIds(), startPos, getPointerIds(), currentLength, length);
System.arraycopy(src.getTimes(), startPos, getTimes(), currentLength, length);
}
public void reset() {
mXCoordinates.reset();
mYCoordinates.reset();
mPointerIds.reset();
mTimes.reset();
}
public int getPointerSize() {
return mXCoordinates.getLength();
}
public int[] getXCoordinates() {
return mXCoordinates.getPrimitiveArray();
}
public int[] getYCoordinates() {
return mYCoordinates.getPrimitiveArray();
}
public int[] getPointerIds() {
return mPointerIds.getPrimitiveArray();
}
public int[] getTimes() {
return mTimes.getPrimitiveArray();
}
private static class ScalableIntArray {
private static final int DEFAULT_SIZE = BinaryDictionary.MAX_WORD_LENGTH;
private int[] mArray;
private int mLength;
public ScalableIntArray() {
reset();
}
public void add(int index, int val) {
if (mLength < index + 1) {
mLength = index;
add(val);
} else {
mArray[index] = val;
}
}
public void add(int val) {
final int nextLength = mLength + 1;
ensureCapacity(nextLength);
mArray[mLength] = val;
mLength = nextLength;
}
public void ensureCapacity(int minimumCapacity) {
if (mArray.length < minimumCapacity) {
final int nextCapacity = mArray.length * 2;
grow(minimumCapacity > nextCapacity ? minimumCapacity : nextCapacity);
}
}
private void grow(int newCapacity) {
final int[] newArray = new int[newCapacity];
System.arraycopy(mArray, 0, newArray, 0, mArray.length);
mArray = newArray;
}
public int getLength() {
return mLength;
}
public void reset() {
mArray = new int[DEFAULT_SIZE];
mLength = 0;
}
public int[] getPrimitiveArray() {
return mArray;
}
public void copy(ScalableIntArray ip) {
ensureCapacity(ip.mLength);
System.arraycopy(ip.mArray, 0, mArray, 0, ip.mLength);
mLength = ip.mLength;
}
public void set(ScalableIntArray ip) {
mArray = ip.mArray;
mLength = ip.mLength;
}
}
}
|
