| /* |
| * Copyright (C) 2013 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; |
| |
| /** |
| * Immutable class for describing width and height dimensions in pixels. |
| */ |
| public final class Size { |
| /** |
| * Create a new immutable Size instance. |
| * |
| * @param width The width of the size, in pixels |
| * @param height The height of the size, in pixels |
| */ |
| public Size(int width, int height) { |
| mWidth = width; |
| mHeight = height; |
| } |
| |
| /** |
| * Get the width of the size (in pixels). |
| * @return width |
| */ |
| public int getWidth() { |
| return mWidth; |
| } |
| |
| /** |
| * Get the height of the size (in pixels). |
| * @return height |
| */ |
| public int getHeight() { |
| return mHeight; |
| } |
| |
| /** |
| * Check if this size is equal to another size. |
| * <p> |
| * Two sizes are equal if and only if both their widths and heights are |
| * equal. |
| * </p> |
| * <p> |
| * A size object is never equal to any other type of object. |
| * </p> |
| * |
| * @return {@code true} if the objects were equal, {@code false} otherwise |
| */ |
| @Override |
| public boolean equals(final Object obj) { |
| if (obj == null) { |
| return false; |
| } |
| if (this == obj) { |
| return true; |
| } |
| if (obj instanceof Size) { |
| Size other = (Size) obj; |
| return mWidth == other.mWidth && mHeight == other.mHeight; |
| } |
| return false; |
| } |
| |
| /** |
| * Return the size represented as a string with the format {@code "WxH"} |
| * |
| * @return string representation of the size |
| */ |
| @Override |
| public String toString() { |
| return mWidth + "x" + mHeight; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public int hashCode() { |
| // assuming most sizes are <2^16, doing a rotate will give us perfect hashing |
| return mHeight ^ ((mWidth << (Integer.SIZE / 2)) | (mWidth >>> (Integer.SIZE / 2))); |
| } |
| |
| private final int mWidth; |
| private final int mHeight; |
| }; |