| /* |
| * Copyright 2008 Google Inc. |
| * |
| * 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 com.google.gwt.uibinder.rebind; |
| |
| import java.io.PrintWriter; |
| |
| /** |
| * Pleasant wrapper for PrintWriter, manages indentation levels. |
| * Name is a misnomer, as this doesn't implement Writer. |
| */ |
| public class IndentedWriter { |
| private final PrintWriter pw; |
| |
| private int indent; |
| |
| public IndentedWriter(PrintWriter pw) { |
| super(); |
| this.pw = pw; |
| } |
| |
| /** |
| * Indents the generated code. |
| */ |
| public void indent() { |
| ++indent; |
| } |
| |
| /** |
| * Outputs a new line. |
| */ |
| public void newline() { |
| // Unix-style line endings for consistent behavior across platforms. |
| pw.print('\n'); |
| } |
| |
| /** |
| * Un-indents the generated code. |
| */ |
| public void outdent() { |
| if (indent == 0) { |
| throw new IllegalStateException("Tried to outdent below zero"); |
| } |
| --indent; |
| } |
| |
| /** |
| * Outputs the given string. |
| */ |
| public void write(String format) { |
| printIndent(); |
| pw.print(format); |
| newline(); |
| } |
| |
| /** |
| * Outputs the given string with replacements, using the Java message format. |
| */ |
| public void write(String format, Object... args) { |
| printIndent(); |
| pw.printf(format, args); |
| newline(); |
| } |
| |
| private void printIndent() { |
| for (int i = 0; i < indent; ++i) { |
| pw.print(" "); |
| } |
| } |
| } |