1 /* 2 * Copyright (c) 2005, 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package javax.swing.plaf.nimbus; 26 27 import javax.swing.Painter; 28 29 import javax.swing.JComponent; 30 import javax.swing.UIManager; 31 import javax.swing.plaf.UIResource; 32 import java.awt.Graphics; 33 import java.awt.Graphics2D; 34 import java.awt.Color; 35 import java.awt.image.BufferedImage; 36 37 /** 38 * TableScrollPaneCorner - A simple component that paints itself using the table 39 * header background painter. It is used to fill the top right corner of 40 * scrollpane. 41 * 42 * @author Created by Jasper Potts (Jan 28, 2008) 43 */ 44 @SuppressWarnings("serial") // Superclass is not serializable across versions 45 class TableScrollPaneCorner extends JComponent implements UIResource{ 46 47 /** 48 * Paint the component using the Nimbus Table Header Background Painter 49 */ 50 @Override protected void paintComponent(Graphics g) { 51 Painter painter = (Painter) UIManager.get( 52 "TableHeader:\"TableHeader.renderer\"[Enabled].backgroundPainter"); 53 if (painter != null){ 54 if (g instanceof Graphics2D){ 55 painter.paint((Graphics2D)g,this,getWidth()+1,getHeight()); 56 } else { 57 // paint using image to not Graphics2D to support 58 // Java 1.1 printing API 59 BufferedImage img = new BufferedImage(getWidth(),getHeight(), 60 BufferedImage.TYPE_INT_ARGB); 61 Graphics2D g2 = (Graphics2D)img.getGraphics(); 62 painter.paint(g2,this,getWidth()+1,getHeight()); 63 g2.dispose(); 64 g.drawImage(img,0,0,null); 65 img = null; 66 } 67 } 68 } 69 }