| /* |
| * Copyright (C) 2017 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 com.android.internal.colorextraction.types; |
| |
| import android.app.WallpaperColors; |
| |
| import com.android.internal.colorextraction.ColorExtractor; |
| |
| /** |
| * Interface to allow various color extraction implementations. |
| */ |
| public interface ExtractionType { |
| |
| /** |
| * Executes color extraction by reading WallpaperColors and setting |
| * main and secondary colors on GradientColors. |
| * |
| * Extraction is expected to happen with 3 different gradient types: |
| * Normal, with the main extracted colors |
| * Dark, with extra contrast |
| * ExtraDark, for places where GAR is mandatory, like the emergency dialer |
| * |
| * @param inWallpaperColors where to read from |
| * @param outGradientColorsNormal object that should receive normal colors |
| * @param outGradientColorsDark object that should receive dark colors |
| * @param outGradientColorsExtraDark object that should receive extra dark colors |
| * @return true if successful. |
| */ |
| boolean extractInto(WallpaperColors inWallpaperColors, |
| ColorExtractor.GradientColors outGradientColorsNormal, |
| ColorExtractor.GradientColors outGradientColorsDark, |
| ColorExtractor.GradientColors outGradientColorsExtraDark); |
| } |