Java tutorial
//package com.java2s; /******************************************************************************* * Copyright (c) 2014 Michal Dabski * * Permission is hereby granted, free of charge, to any person obtaining a copy of * this software and associated documentation files (the "Software"), to deal in * the Software without restriction, including without limitation the rights to * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of * the Software, and to permit persons to whom the Software is furnished to do so, * subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ******************************************************************************/ import android.graphics.Bitmap; import android.graphics.Rect; public class Main { public static Rect getBestFitRect(Bitmap bitmap, Rect destination) { return getBestFitRect(bitmap, (float) destination.width() / (float) destination.height()); } public static Rect getBestFitRect(Bitmap bitmap, float ratio) { float bmpRatio = (float) bitmap.getWidth() / (float) bitmap.getHeight(); if (bmpRatio > ratio) // bmp is wider { int height = bitmap.getHeight(); int width = (int) (height * ratio); int offset = (bitmap.getWidth() - width) / 2; return new Rect(offset, 0, offset + width, height); } else if (bmpRatio < ratio) // bmp is taller { int width = bitmap.getWidth(); int height = (int) (width / ratio); int offset = (bitmap.getHeight() - height) / 2; return new Rect(0, offset, width, offset + height); } else return new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight()); } }