blob: 8b4c60b5fead3b7583174c1137e35b4d73d4e58d (
plain)
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
|
/*
* Copyright (C) 2007 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 android.util;
import com.android.layoutlib.bridge.impl.DelegateManager;
import com.android.tools.layoutlib.annotations.LayoutlibDelegate;
/**
* Delegate implementing the native methods of android.util.FloatMath
*
* Through the layoutlib_create tool, the original native methods of FloatMath have been replaced
* by calls to methods of the same name in this delegate class.
*
* Because it's a stateless class to start with, there's no need to keep a {@link DelegateManager}
* around to map int to instance of the delegate.
*
*/
/*package*/ final class FloatMath_Delegate {
/** Prevents instantiation. */
private FloatMath_Delegate() {}
/**
* Returns the float conversion of the most positive (i.e. closest to
* positive infinity) integer value which is less than the argument.
*
* @param value to be converted
* @return the floor of value
*/
@LayoutlibDelegate
/*package*/ static float floor(float value) {
return (float)Math.floor(value);
}
/**
* Returns the float conversion of the most negative (i.e. closest to
* negative infinity) integer value which is greater than the argument.
*
* @param value to be converted
* @return the ceiling of value
*/
@LayoutlibDelegate
/*package*/ static float ceil(float value) {
return (float)Math.ceil(value);
}
/**
* Returns the closest float approximation of the sine of the argument.
*
* @param angle to compute the cosine of, in radians
* @return the sine of angle
*/
@LayoutlibDelegate
/*package*/ static float sin(float angle) {
return (float)Math.sin(angle);
}
/**
* Returns the closest float approximation of the cosine of the argument.
*
* @param angle to compute the cosine of, in radians
* @return the cosine of angle
*/
@LayoutlibDelegate
/*package*/ static float cos(float angle) {
return (float)Math.cos(angle);
}
/**
* Returns the closest float approximation of the square root of the
* argument.
*
* @param value to compute sqrt of
* @return the square root of value
*/
@LayoutlibDelegate
/*package*/ static float sqrt(float value) {
return (float)Math.sqrt(value);
}
/**
* Returns the closest float approximation of the raising "e" to the power
* of the argument.
*
* @param value to compute the exponential of
* @return the exponential of value
*/
@LayoutlibDelegate
/*package*/ static float exp(float value) {
return (float)Math.exp(value);
}
/**
* Returns the closest float approximation of the result of raising {@code
* x} to the power of {@code y}.
*
* @param x the base of the operation.
* @param y the exponent of the operation.
* @return {@code x} to the power of {@code y}.
*/
@LayoutlibDelegate
/*package*/ static float pow(float x, float y) {
return (float)Math.pow(x, y);
}
/**
* Returns {@code sqrt(}<i>{@code x}</i><sup>{@code 2}</sup>{@code +} <i>
* {@code y}</i><sup>{@code 2}</sup>{@code )}.
*
* @param x a float number
* @param y a float number
* @return the hypotenuse
*/
@LayoutlibDelegate
/*package*/ static float hypot(float x, float y) {
return (float)Math.sqrt(x*x + y*y);
}
}
|
