Java tutorial
//package com.java2s; /* * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ import java.awt.font.*; public class Main { private static boolean isFontRenderContextPrintCompatible(FontRenderContext frc1, FontRenderContext frc2) { if (frc1 == frc2) { return true; } if (frc1 == null || frc2 == null) { // not supposed to happen return false; } if (frc1.getFractionalMetricsHint() != frc2.getFractionalMetricsHint()) { return false; } /* If both are identity, return true */ if (!frc1.isTransformed() && !frc2.isTransformed()) { return true; } /* That's the end of the cheap tests, need to get and compare * the transform matrices. We don't care about the translation * components, so return true if they are otherwise identical. */ double[] mat1 = new double[4]; double[] mat2 = new double[4]; frc1.getTransform().getMatrix(mat1); frc2.getTransform().getMatrix(mat2); return mat1[0] == mat2[0] && mat1[1] == mat2[1] && mat1[2] == mat2[2] && mat1[3] == mat2[3]; } }