1/* 2 * Copyright (c) 2008, 2015, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24package com.sun.hotspot.igv.settings; 25 26import java.beans.PropertyChangeListener; 27import java.beans.PropertyChangeSupport; 28import javax.swing.JComponent; 29import org.netbeans.spi.options.OptionsPanelController; 30import org.openide.util.HelpCtx; 31import org.openide.util.Lookup; 32 33/** 34 * 35 * @author Thomas Wuerthinger 36 */ 37final class ViewOptionsPanelController extends OptionsPanelController { 38 39 private ViewPanel panel; 40 private final PropertyChangeSupport pcs = new PropertyChangeSupport(this); 41 private boolean changed; 42 43 @Override 44 public void update() { 45 getPanel().load(); 46 changed = false; 47 } 48 49 @Override 50 public void applyChanges() { 51 getPanel().store(); 52 changed = false; 53 } 54 55 @Override 56 public void cancel() { 57 // need not do anything special, if no changes have been persisted yet 58 } 59 60 @Override 61 public boolean isValid() { 62 return getPanel().valid(); 63 } 64 65 @Override 66 public boolean isChanged() { 67 return changed; 68 } 69 70 @Override 71 public HelpCtx getHelpCtx() { 72 return null; // new HelpCtx("...ID") if you have a help set 73 } 74 75 @Override 76 public JComponent getComponent(Lookup masterLookup) { 77 return getPanel(); 78 } 79 80 @Override 81 public void addPropertyChangeListener(PropertyChangeListener l) { 82 pcs.addPropertyChangeListener(l); 83 } 84 85 @Override 86 public void removePropertyChangeListener(PropertyChangeListener l) { 87 pcs.removePropertyChangeListener(l); 88 } 89 90 private ViewPanel getPanel() { 91 if (panel == null) { 92 panel = new ViewPanel(this); 93 } 94 return panel; 95 } 96 97 void changed() { 98 if (!changed) { 99 changed = true; 100 pcs.firePropertyChange(OptionsPanelController.PROP_CHANGED, false, true); 101 } 102 pcs.firePropertyChange(OptionsPanelController.PROP_VALID, null, null); 103 } 104} 105