Back to project page picasso.
The source code is released under:
Apache License
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/* * Copyright (C) 2013 Square, Inc.//w ww. ja v a2 s . co m * * 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.squareup.picasso; import android.graphics.Bitmap; /** Image transformation. */ public interface Transformation { /** * Transform the source bitmap into a new bitmap. If you create a new bitmap instance, you must * call {@link android.graphics.Bitmap#recycle()} on {@code source}. You may return the original * if no transformation is required. */ Bitmap transform(Bitmap source); /** * Returns a unique key for the transformation, used for caching purposes. If the transformation * has parameters (e.g. size, scale factor, etc) then these should be part of the key. */ String key(); }