1 /*
2 * Copyright (c) 2001, 2008, 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
167 * The asymptotic complexity of the layout operation of a <code>SpringLayout</code>
168 * is linear in the number of constraints (and/or components).
169 * <p>
170 * <strong>Warning:</strong>
171 * Serialized objects of this class will not be compatible with
172 * future Swing releases. The current serialization support is
173 * appropriate for short term storage or RMI between applications running
174 * the same version of Swing. As of 1.4, support for long term storage
175 * of all JavaBeans™
176 * has been added to the <code>java.beans</code> package.
177 * Please see {@link java.beans.XMLEncoder}.
178 *
179 * @see Spring
180 * @see SpringLayout.Constraints
181 *
182 * @author Philip Milne
183 * @author Scott Violet
184 * @author Joe Winchester
185 * @since 1.4
186 */
187 public class SpringLayout implements LayoutManager2 {
188 private Map<Component, Constraints> componentConstraints = new HashMap<Component, Constraints>();
189
190 private Spring cyclicReference = Spring.constant(Spring.UNSET);
191 private Set<Spring> cyclicSprings;
192 private Set<Spring> acyclicSprings;
193
194
195 /**
196 * Specifies the top edge of a component's bounding rectangle.
197 */
198 public static final String NORTH = "North";
199
200 /**
201 * Specifies the bottom edge of a component's bounding rectangle.
202 */
203 public static final String SOUTH = "South";
204
205 /**
206 * Specifies the right edge of a component's bounding rectangle.
|
1 /*
2 * Copyright (c) 2001, 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
167 * The asymptotic complexity of the layout operation of a <code>SpringLayout</code>
168 * is linear in the number of constraints (and/or components).
169 * <p>
170 * <strong>Warning:</strong>
171 * Serialized objects of this class will not be compatible with
172 * future Swing releases. The current serialization support is
173 * appropriate for short term storage or RMI between applications running
174 * the same version of Swing. As of 1.4, support for long term storage
175 * of all JavaBeans™
176 * has been added to the <code>java.beans</code> package.
177 * Please see {@link java.beans.XMLEncoder}.
178 *
179 * @see Spring
180 * @see SpringLayout.Constraints
181 *
182 * @author Philip Milne
183 * @author Scott Violet
184 * @author Joe Winchester
185 * @since 1.4
186 */
187 @SuppressWarnings("serial") // Same-version serialization only
188 public class SpringLayout implements LayoutManager2 {
189 private Map<Component, Constraints> componentConstraints = new HashMap<Component, Constraints>();
190
191 private Spring cyclicReference = Spring.constant(Spring.UNSET);
192 private Set<Spring> cyclicSprings;
193 private Set<Spring> acyclicSprings;
194
195
196 /**
197 * Specifies the top edge of a component's bounding rectangle.
198 */
199 public static final String NORTH = "North";
200
201 /**
202 * Specifies the bottom edge of a component's bounding rectangle.
203 */
204 public static final String SOUTH = "South";
205
206 /**
207 * Specifies the right edge of a component's bounding rectangle.
|