/* * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */package javax.swing;import java.awt.Component;import java.awt.Container;import java.awt.FocusTraversalPolicy;import java.util.Comparator;/** * This class has been obsoleted by the 1.4 focus APIs. While client code may * still use this class, developers are strongly encouraged to use * <code>java.awt.KeyboardFocusManager</code> and * <code>java.awt.DefaultKeyboardFocusManager</code> instead. * <p> * Please see * <a href="http://java.sun.com/docs/books/tutorial/uiswing/misc/focus.html"> * How to Use the Focus Subsystem</a>, * a section in <em>The Java Tutorial</em>, and the * <a href="../../java/awt/doc-files/FocusSpec.html">Focus Specification</a> * for more information. * * @author Arnaud Weber * @author David Mendenhall */public class DefaultFocusManager extends FocusManager { final FocusTraversalPolicy gluePolicy = new LegacyGlueFocusTraversalPolicy(this); private final FocusTraversalPolicy layoutPolicy = new LegacyLayoutFocusTraversalPolicy(this); private final LayoutComparator comparator = new LayoutComparator(); public DefaultFocusManager() { setDefaultFocusTraversalPolicy(gluePolicy); } public Component getComponentAfter(Container aContainer, Component aComponent) { Container root = (aContainer.isFocusCycleRoot()) ? aContainer : aContainer.getFocusCycleRootAncestor(); // Support for mixed 1.4/pre-1.4 focus APIs. If a particular root's // traversal policy is non-legacy, then honor it. if (root != null) { FocusTraversalPolicy policy = root.getFocusTraversalPolicy(); if (policy != gluePolicy) { return policy.getComponentAfter(root, aComponent); } comparator.setComponentOrientation(root.getComponentOrientation()); return layoutPolicy.getComponentAfter(root, aComponent); } return null; } public Component getComponentBefore(Container aContainer, Component aComponent) { Container root = (aContainer.isFocusCycleRoot()) ? aContainer : aContainer.getFocusCycleRootAncestor(); // Support for mixed 1.4/pre-1.4 focus APIs. If a particular root's // traversal policy is non-legacy, then honor it. if (root != null) { FocusTraversalPolicy policy = root.getFocusTraversalPolicy(); if (policy != gluePolicy) { return policy.getComponentBefore(root, aComponent); } comparator.setComponentOrientation(root.getComponentOrientation()); return layoutPolicy.getComponentBefore(root, aComponent); } return null; } public Component getFirstComponent(Container aContainer) { Container root = (aContainer.isFocusCycleRoot()) ? aContainer : aContainer.getFocusCycleRootAncestor(); // Support for mixed 1.4/pre-1.4 focus APIs. If a particular root's // traversal policy is non-legacy, then honor it. if (root != null) { FocusTraversalPolicy policy = root.getFocusTraversalPolicy(); if (policy != gluePolicy) { return policy.getFirstComponent(root); } comparator.setComponentOrientation(root.getComponentOrientation()); return layoutPolicy.getFirstComponent(root); } return null; } public Component getLastComponent(Container aContainer) { Container root = (aContainer.isFocusCycleRoot()) ? aContainer : aContainer.getFocusCycleRootAncestor(); // Support for mixed 1.4/pre-1.4 focus APIs. If a particular root's // traversal policy is non-legacy, then honor it. if (root != null) { FocusTraversalPolicy policy = root.getFocusTraversalPolicy(); if (policy != gluePolicy) { return policy.getLastComponent(root); } comparator.setComponentOrientation(root.getComponentOrientation()); return layoutPolicy.getLastComponent(root); } return null; } public boolean compareTabOrder(Component a, Component b) { return (comparator.compare(a, b) < 0); }}final class LegacyLayoutFocusTraversalPolicy extends LayoutFocusTraversalPolicy{ LegacyLayoutFocusTraversalPolicy(DefaultFocusManager defaultFocusManager) { super(new CompareTabOrderComparator(defaultFocusManager)); }}final class CompareTabOrderComparator implements Comparator<Component> { private final DefaultFocusManager defaultFocusManager; CompareTabOrderComparator(DefaultFocusManager defaultFocusManager) { this.defaultFocusManager = defaultFocusManager; } public int compare(Component o1, Component o2) { if (o1 == o2) { return 0; } return (defaultFocusManager.compareTabOrder(o1, o2)) ? -1 : 1; }}
/*
* Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package javax.swing;
import java.awt.Component;
import java.awt.Container;
import java.awt.FocusTraversalPolicy;
import java.util.Comparator;
/**
* This class has been obsoleted by the 1.4 focus APIs. While client code may
* still use this class, developers are strongly encouraged to use
* <code>java.awt.KeyboardFocusManager</code> and
* <code>java.awt.DefaultKeyboardFocusManager</code> instead.
* <p>
* Please see
* <a href="http://java.sun.com/docs/books/tutorial/uiswing/misc/focus.html">
* How to Use the Focus Subsystem</a>,
* a section in <em>The Java Tutorial</em>, and the
* <a href="../../java/awt/doc-files/FocusSpec.html">Focus Specification</a>
* for more information.
*
* @author Arnaud Weber
* @author David Mendenhall
*/
public class DefaultFocusManager extends FocusManager {
final FocusTraversalPolicy gluePolicy =
new LegacyGlueFocusTraversalPolicy(this);
private final FocusTraversalPolicy layoutPolicy =
new LegacyLayoutFocusTraversalPolicy(this);
private final LayoutComparator comparator =
new LayoutComparator();
public DefaultFocusManager() {
setDefaultFocusTraversalPolicy(gluePolicy);
}
public Component getComponentAfter(Container aContainer,
Component aComponent)
{
Container root = (aContainer.isFocusCycleRoot())
? aContainer
: aContainer.getFocusCycleRootAncestor();
// Support for mixed 1.4/pre-1.4 focus APIs. If a particular root's
// traversal policy is non-legacy, then honor it.
if (root != null) {
FocusTraversalPolicy policy = root.getFocusTraversalPolicy();
if (policy != gluePolicy) {
return policy.getComponentAfter(root, aComponent);
}
comparator.setComponentOrientation(root.getComponentOrientation());
return layoutPolicy.getComponentAfter(root, aComponent);
}
return null;
}
public Component getComponentBefore(Container aContainer,
Component aComponent)
{
Container root = (aContainer.isFocusCycleRoot())
? aContainer
: aContainer.getFocusCycleRootAncestor();
// Support for mixed 1.4/pre-1.4 focus APIs. If a particular root's
// traversal policy is non-legacy, then honor it.
if (root != null) {
FocusTraversalPolicy policy = root.getFocusTraversalPolicy();
if (policy != gluePolicy) {
return policy.getComponentBefore(root, aComponent);
}
comparator.setComponentOrientation(root.getComponentOrientation());
return layoutPolicy.getComponentBefore(root, aComponent);
}
return null;
}
public Component getFirstComponent(Container aContainer) {
Container root = (aContainer.isFocusCycleRoot())
? aContainer
: aContainer.getFocusCycleRootAncestor();
// Support for mixed 1.4/pre-1.4 focus APIs. If a particular root's
// traversal policy is non-legacy, then honor it.
if (root != null) {
FocusTraversalPolicy policy = root.getFocusTraversalPolicy();
if (policy != gluePolicy) {
return policy.getFirstComponent(root);
}
comparator.setComponentOrientation(root.getComponentOrientation());
return layoutPolicy.getFirstComponent(root);
}
return null;
}
public Component getLastComponent(Container aContainer) {
Container root = (aContainer.isFocusCycleRoot())
? aContainer
: aContainer.getFocusCycleRootAncestor();
// Support for mixed 1.4/pre-1.4 focus APIs. If a particular root's
// traversal policy is non-legacy, then honor it.
if (root != null) {
FocusTraversalPolicy policy = root.getFocusTraversalPolicy();
if (policy != gluePolicy) {
return policy.getLastComponent(root);
}
comparator.setComponentOrientation(root.getComponentOrientation());
return layoutPolicy.getLastComponent(root);
}
return null;
}
public boolean compareTabOrder(Component a, Component b) {
return (comparator.compare(a, b) < 0);
}
}
final class LegacyLayoutFocusTraversalPolicy
extends LayoutFocusTraversalPolicy
{
LegacyLayoutFocusTraversalPolicy(DefaultFocusManager defaultFocusManager) {
super(new CompareTabOrderComparator(defaultFocusManager));
}
}
final class CompareTabOrderComparator implements Comparator<Component> {
private final DefaultFocusManager defaultFocusManager;
CompareTabOrderComparator(DefaultFocusManager defaultFocusManager) {
this.defaultFocusManager = defaultFocusManager;
}
public int compare(Component o1, Component o2) {
if (o1 == o2) {
return 0;
}
return (defaultFocusManager.compareTabOrder(o1, o2)) ? -1 : 1;
}
}