1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.log4j.chainsaw; 18 19 import java.awt.Font; 20 21 import javax.swing.UIManager; 22 import javax.swing.text.Document; 23 import javax.swing.text.JTextComponent; 24 import javax.swing.text.html.HTMLDocument; 25 26 /** 27 * Apply system font and size (normal size + 1) rule if the JEditorPane document contains html. 28 */ 29 public class JTextComponentFormatter 30 { 31 public static void applySystemFontAndSize(JTextComponent textComponent) { 32 Document document = textComponent.getDocument(); 33 if (document instanceof HTMLDocument) { 34 Font font = UIManager.getFont("Label.font"); 35 String bodyRule = "body { font-family: " + font.getFamily() + "; font-size: " + (font.getSize() + 1) + "pt; }"; 36 ((HTMLDocument)document).getStyleSheet().addRule(bodyRule); 37 } 38 } 39 }