001 /* BasicPopupMenuSeparatorUI.java -- 002 Copyright (C) 2004 Free Software Foundation, Inc. 003 004 This file is part of GNU Classpath. 005 006 GNU Classpath is free software; you can redistribute it and/or modify 007 it under the terms of the GNU General Public License as published by 008 the Free Software Foundation; either version 2, or (at your option) 009 any later version. 010 011 GNU Classpath is distributed in the hope that it will be useful, but 012 WITHOUT ANY WARRANTY; without even the implied warranty of 013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 General Public License for more details. 015 016 You should have received a copy of the GNU General Public License 017 along with GNU Classpath; see the file COPYING. If not, write to the 018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 019 02110-1301 USA. 020 021 Linking this library statically or dynamically with other modules is 022 making a combined work based on this library. Thus, the terms and 023 conditions of the GNU General Public License cover the whole 024 combination. 025 026 As a special exception, the copyright holders of this library give you 027 permission to link this library with independent modules to produce an 028 executable, regardless of the license terms of these independent 029 modules, and to copy and distribute the resulting executable under 030 terms of your choice, provided that you also meet, for each linked 031 independent module, the terms and conditions of the license of that 032 module. An independent module is a module which is not derived from 033 or based on this library. If you modify this library, you may extend 034 this exception to your version of the library, but you are not 035 obligated to do so. If you do not wish to do so, delete this 036 exception statement from your version. */ 037 038 039 package javax.swing.plaf.basic; 040 041 import java.awt.Color; 042 import java.awt.Dimension; 043 import java.awt.Graphics; 044 import java.awt.Rectangle; 045 046 import javax.swing.JComponent; 047 import javax.swing.JPopupMenu; 048 import javax.swing.SwingUtilities; 049 import javax.swing.plaf.ComponentUI; 050 051 /** 052 * The Basic Look and Feel UI delegate for JPopupMenu.Separator. 053 */ 054 public class BasicPopupMenuSeparatorUI extends BasicSeparatorUI 055 { 056 /** 057 * Creates a new BasicPopupMenuSeparatorUI object. 058 */ 059 public BasicPopupMenuSeparatorUI() 060 { 061 super(); 062 } 063 064 /** 065 * Creates a new UI delegate for the given JComponent. 066 * 067 * @param c The JComponent to create a delegate for. 068 * 069 * @return A new BasicPopupMenuSeparatorUI 070 */ 071 public static ComponentUI createUI(JComponent c) 072 { 073 return new BasicPopupMenuSeparatorUI(); 074 } 075 076 /** 077 * The Popup Menu Separator has two lines. The top line will be 078 * painted using highlight color and the bottom using shadow color. 079 * 080 * @param g The Graphics object to paint with 081 * @param c The JComponent to paint. 082 */ 083 public void paint(Graphics g, JComponent c) 084 { 085 if (! (c instanceof JPopupMenu.Separator)) 086 return; 087 088 Rectangle r = new Rectangle(); 089 SwingUtilities.calculateInnerArea(c, r); 090 Color saved = g.getColor(); 091 092 int midAB = r.width / 2 + r.x; 093 int midAD = r.height / 2 + r.y; 094 095 g.setColor(highlight); 096 g.drawLine(r.x, midAD, r.x + r.width, midAD); 097 098 g.setColor(shadow); 099 g.drawLine(r.x, midAD + 1, r.x + r.width, midAD + 1); 100 } 101 102 /** 103 * This method returns the preferred size of the 104 * JComponent. 105 * 106 * @param c The JComponent to measure. 107 * 108 * @return The preferred size. 109 */ 110 public Dimension getPreferredSize(JComponent c) 111 { 112 return super.getPreferredSize(c); 113 } 114 }