SingleLineTransformationMethod.java revision 54b6cfa9a9e5b861a9930af873580d6dc20f773c 
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
17package android.text.method;
18
19import android.graphics.Rect;
20import android.text.Editable;
21import android.text.GetChars;
22import android.text.Spannable;
23import android.text.Spanned;
24import android.text.SpannedString;
25import android.text.TextUtils;
26import android.view.View;
27
28/**
29 * This transformation method causes any newline characters (\n) to be
30 * displayed as spaces instead of causing line breaks.
31 */
32public class SingleLineTransformationMethod
33extends ReplacementTransformationMethod {
34    private static char[] ORIGINAL = new char[] { '\n' };
35    private static char[] REPLACEMENT = new char[] { ' ' };
36
37    /**
38     * The character to be replaced is \n.
39     */
40    protected char[] getOriginal() {
41        return ORIGINAL;
42    }
43
44    /**
45     * The character \n is replaced with is space.
46     */
47    protected char[] getReplacement() {
48        return REPLACEMENT;
49    }
50
51    public static SingleLineTransformationMethod getInstance() {
52        if (sInstance != null)
53            return sInstance;
54
55        sInstance = new SingleLineTransformationMethod();
56        return sInstance;
57    }
58
59    private static SingleLineTransformationMethod sInstance;
60}
61