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;
18 
19 import com.android.camera.async.ForwardingObservable;
20 import com.android.camera.async.Observable;
21 import com.android.camera.async.Observables;
22 import com.google.common.base.Function;
23 
24 /**
25  * Translates from the Flash Mode setting (stored as a string) to the
26  * appropriate {@link OneCamera.PhotoCaptureParameters.Flash} value.
27  */
28 public class FlashSetting extends ForwardingObservable<OneCamera.PhotoCaptureParameters.Flash> {
29     private static class FlashStringToEnum implements
30             Function<String, OneCamera.PhotoCaptureParameters.Flash> {
31         @Override
apply(String settingString)32         public OneCamera.PhotoCaptureParameters.Flash apply(String settingString) {
33             return OneCamera.PhotoCaptureParameters.Flash.decodeSettingsString(settingString);
34         }
35     }
36 
FlashSetting(Observable<String> flashSettingString)37     public FlashSetting(Observable<String> flashSettingString) {
38         super(Observables.transform(flashSettingString, new FlashStringToEnum()));
39     }
40 }
41