1 /*
2  * Copyright (c) 1998, 2000, 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
23  * questions.
24  */
25 
26 #ifndef _Included_SpanIterator
27 #define _Included_SpanIterator
28 
29 /*
30  * This structure defines the methods used to communicate with a
31  * Java SpanIterator at the native level.
32  */
33 typedef struct {
34     /**
35      * Init and return native data
36      */
37     void     *(*open)(JNIEnv *env, jobject iterator);
38 
39     /**
40      * End iteration, dispose data
41      */
42     void      (*close)(JNIEnv *env, void *clientData);
43 
44     /**
45      * See SpanIterator.getPathBox()
46      */
47     void      (*getPathBox)(JNIEnv *env, void *clientData, jint pathbox[]);
48 
49     /**
50      * See ShapeSpanIterator.ShapeSIIntersectClipBox
51      */
52     void      (*intersectClipBox)(JNIEnv *env, void *clientData,
53                                     jint lox, jint loy, jint hix, jint hiy);
54 
55     /**
56      * See SpanIterator.nextSpan()
57      */
58     jboolean  (*nextSpan)(void *clientData, jint spanbox[]);
59 
60     /**
61      * See SpanIterator.skipDownTo()
62      */
63     void      (*skipDownTo)(void *clientData, jint y);
64 } SpanIteratorFuncs;
65 
66 #endif
67