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Diffstat (limited to 'tools/layoutlib/bridge/src/android/util/FloatMath_Delegate.java')
-rw-r--r-- | tools/layoutlib/bridge/src/android/util/FloatMath_Delegate.java | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/tools/layoutlib/bridge/src/android/util/FloatMath_Delegate.java b/tools/layoutlib/bridge/src/android/util/FloatMath_Delegate.java new file mode 100644 index 0000000..1df78c2 --- /dev/null +++ b/tools/layoutlib/bridge/src/android/util/FloatMath_Delegate.java @@ -0,0 +1,94 @@ +/* + * 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); + } +} |