/*
 * Copyright 2019 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 androidx.camera.core;

import androidx.annotation.IntDef;
import androidx.annotation.RestrictTo;

import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;

/**
 * The aspect ratio of the use case.
 *
 * <p>Aspect ratio is the ratio of width to height.
 */
public class AspectRatio {
    /** The aspect ratio representing no preference for aspect ratio. */
    public static final int RATIO_DEFAULT = -1;
    /** 4:3 standard aspect ratio. */
    public static final int RATIO_4_3 = 0;
    /** 16:9 standard aspect ratio. */
    public static final int RATIO_16_9 = 1;

    private AspectRatio() {
    }

    /**
     */
    @IntDef({RATIO_DEFAULT, RATIO_4_3, RATIO_16_9})
    @Retention(RetentionPolicy.SOURCE)
    @RestrictTo(RestrictTo.Scope.LIBRARY_GROUP)
    public @interface Ratio {
    }
}