1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.camera.one.v2.autofocus; 18 19 import android.graphics.Rect; 20 import android.hardware.camera2.params.MeteringRectangle; 21 22 import com.google.common.base.Supplier; 23 24 /** 25 * Computes the current AE metering rectangles based on the current metering 26 * parameters and crop region. 27 */ 28 class AEMeteringRegion implements Supplier<MeteringRectangle[]> { 29 private final Supplier<MeteringParameters> mMeteringParameters; 30 private final Supplier<Rect> mCropRegion; 31 AEMeteringRegion(Supplier<MeteringParameters> meteringParameters, Supplier<Rect> cropRegion)32 public AEMeteringRegion(Supplier<MeteringParameters> meteringParameters, 33 Supplier<Rect> cropRegion) { 34 mMeteringParameters = meteringParameters; 35 mCropRegion = cropRegion; 36 } 37 38 @Override get()39 public MeteringRectangle[] get() { 40 return mMeteringParameters.get().getAERegions(mCropRegion.get()); 41 } 42 } 43