1 /* 2 * Copyright (C) 2006 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 android.text.method; 18 19 /** 20 * This transformation method causes any carriage return characters (\r) 21 * to be hidden by displaying them as zero-width non-breaking space 22 * characters (\uFEFF). 23 */ 24 public class HideReturnsTransformationMethod 25 extends ReplacementTransformationMethod { 26 private static char[] ORIGINAL = new char[] { '\r' }; 27 private static char[] REPLACEMENT = new char[] { '\uFEFF' }; 28 29 /** 30 * The character to be replaced is \r. 31 */ 32 protected char[] getOriginal() { 33 return ORIGINAL; 34 } 35 36 /** 37 * The character that \r is replaced with is \uFEFF. 38 */ 39 protected char[] getReplacement() { 40 return REPLACEMENT; 41 } 42 43 public static HideReturnsTransformationMethod getInstance() { 44 if (sInstance != null) 45 return sInstance; 46 47 sInstance = new HideReturnsTransformationMethod(); 48 return sInstance; 49 } 50 51 private static HideReturnsTransformationMethod sInstance; 52 } 53
