Source Code Cross Referenced for GeneralPath.java in  » 6.0-JDK-Core » AWT » java » awt » geom » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Core » AWT » java.awt.geom 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001        /*
002         * Copyright 1996-2006 Sun Microsystems, Inc.  All Rights Reserved.
003         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004         *
005         * This code is free software; you can redistribute it and/or modify it
006         * under the terms of the GNU General Public License version 2 only, as
007         * published by the Free Software Foundation.  Sun designates this
008         * particular file as subject to the "Classpath" exception as provided
009         * by Sun in the LICENSE file that accompanied this code.
010         *
011         * This code is distributed in the hope that it will be useful, but WITHOUT
012         * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
013         * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
014         * version 2 for more details (a copy is included in the LICENSE file that
015         * accompanied this code).
016         *
017         * You should have received a copy of the GNU General Public License version
018         * 2 along with this work; if not, write to the Free Software Foundation,
019         * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
020         *
021         * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
022         * CA 95054 USA or visit www.sun.com if you need additional information or
023         * have any questions.
024         */
025
026        package java.awt.geom;
027
028        import java.awt.Shape;
029
030        /**
031         * The {@code GeneralPath} class represents a geometric path 
032         * constructed from straight lines, and quadratic and cubic
033         * (Bézier) curves.  It can contain multiple subpaths.
034         * <p>
035         * {@code GeneralPath} is a legacy final class which exactly
036         * implements the behavior of its superclass {@link Path2D.Float}.
037         * Together with {@link Path2D.Double}, the {@link Path2D} classes
038         * provide full implementations of a general geometric path that
039         * support all of the functionality of the {@link Shape} and
040         * {@link PathIterator} interfaces with the ability to explicitly
041         * select different levels of internal coordinate precision.
042         * <p>
043         * Use {@code Path2D.Float} (or this legacy {@code GeneralPath}
044         * subclass) when dealing with data that can be represented
045         * and used with floating point precision.  Use {@code Path2D.Double}
046         * for data that requires the accuracy or range of double precision.
047         *
048         * @version 1.70, 05/05/07
049         * @author Jim Graham
050         * @since 1.2
051         */
052        public final class GeneralPath extends Path2D.Float {
053            /**
054             * Constructs a new empty single precision {@code GeneralPath} object
055             * with a default winding rule of {@link #WIND_NON_ZERO}.
056             *
057             * @since 1.2
058             */
059            public GeneralPath() {
060                super (WIND_NON_ZERO, INIT_SIZE);
061            }
062
063            /**
064             * Constructs a new <code>GeneralPath</code> object with the specified 
065             * winding rule to control operations that require the interior of the
066             * path to be defined.
067             *
068             * @param rule the winding rule
069             * @see #WIND_EVEN_ODD
070             * @see #WIND_NON_ZERO
071             * @since 1.2
072             */
073            public GeneralPath(int rule) {
074                super (rule, INIT_SIZE);
075            }
076
077            /**
078             * Constructs a new <code>GeneralPath</code> object with the specified 
079             * winding rule and the specified initial capacity to store path 
080             * coordinates.
081             * This number is an initial guess as to how many path segments
082             * will be added to the path, but the storage is expanded as
083             * needed to store whatever path segments are added.
084             *
085             * @param rule the winding rule
086             * @param initialCapacity the estimate for the number of path segments
087             *                        in the path
088             * @see #WIND_EVEN_ODD
089             * @see #WIND_NON_ZERO
090             * @since 1.2
091             */
092            public GeneralPath(int rule, int initialCapacity) {
093                super (rule, initialCapacity);
094            }
095
096            /**
097             * Constructs a new <code>GeneralPath</code> object from an arbitrary 
098             * {@link Shape} object.
099             * All of the initial geometry and the winding rule for this path are
100             * taken from the specified <code>Shape</code> object.
101             *
102             * @param s the specified <code>Shape</code> object
103             * @since 1.2
104             */
105            public GeneralPath(Shape s) {
106                super (s, null);
107            }
108
109            GeneralPath(int windingRule, byte[] pointTypes, int numTypes,
110                    float[] pointCoords, int numCoords) {
111                // used to construct from native
112
113                this .windingRule = windingRule;
114                this .pointTypes = pointTypes;
115                this .numTypes = numTypes;
116                this .floatCoords = pointCoords;
117                this .numCoords = numCoords;
118            }
119
120            /*
121             * JDK 1.6 serialVersionUID
122             */
123            private static final long serialVersionUID = -8327096662768731142L;
124        }
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