| // Copyright 2004 The Apache Software Foundation |
| // |
| // 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 org.apache.tapestry.html; |
| |
| import org.apache.commons.lang.enum.Enum; |
| import org.apache.tapestry.IMarkupWriter; |
| |
| /** |
| * Defines a number of ways to format multi-line text for proper |
| * renderring. |
| * |
| * @version $Id$ |
| * @author Howard Lewis Ship |
| * |
| **/ |
| |
| public abstract class InsertTextMode extends Enum |
| { |
| /** |
| * Mode where each line (after the first) is preceded by a <br> tag. |
| * |
| **/ |
| |
| public static final InsertTextMode BREAK = new BreakMode(); |
| |
| /** |
| * Mode where each line is wrapped with a <p> element. |
| * |
| **/ |
| |
| public static final InsertTextMode PARAGRAPH = new ParagraphMode(); |
| |
| protected InsertTextMode(String name) |
| { |
| super(name); |
| } |
| |
| /** |
| * Invoked by the {@link InsertText} component to write the next line. |
| * |
| * @param lineNumber the line number of the line, starting with 0 for the first line. |
| * @param line the String for the current line. |
| * @param writer the {@link IMarkupWriter} to send output to. |
| **/ |
| |
| public abstract void writeLine( |
| int lineNumber, |
| String line, |
| IMarkupWriter writer); |
| |
| private static class BreakMode extends InsertTextMode |
| { |
| private BreakMode() |
| { |
| super("BREAK"); |
| } |
| |
| public void writeLine(int lineNumber, String line, IMarkupWriter writer) |
| { |
| if (lineNumber > 0) |
| writer.beginEmpty("br"); |
| |
| writer.print(line); |
| } |
| } |
| |
| private static class ParagraphMode extends InsertTextMode |
| { |
| private ParagraphMode() |
| { |
| super("PARAGRAPH"); |
| } |
| |
| public void writeLine(int lineNumber, String line, IMarkupWriter writer) |
| { |
| writer.begin("p"); |
| |
| writer.print(line); |
| |
| writer.end(); |
| } |
| } |
| |
| } |