1 /**
2 * This is a simple mechanism to bind Inkscape to Java, and thence
3 * to all of the nice things that can be layered upon that.
4 *
5 * Authors:
6 * Bob Jamison
7 *
8 * Copyright (C) 2007-2008 Bob Jamison
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 3 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 */
26 #include <stdio.h>
27 #include <stdlib.h>
28 #include <stdarg.h>
29 #include <string.h>
30 #include <jni.h>
32 #ifdef __WIN32__
33 #include <windows.h>
34 #else
35 #include <dlfcn.h>
36 #include <errno.h>
37 #endif
39 #include "javabind.h"
40 #include "javabind-private.h"
42 #include <dom/dom.h>
43 #include <dom/domimpl.h>
45 namespace Inkscape
46 {
47 namespace Bind
48 {
50 using namespace org::w3c::dom;
52 /**
53 * This file has the actual C++ --> Java bindings
54 * This file can get quite large!
55 */
57 /**
58 * This struct associates a class name with its native
59 * bindings. Since C++ does not allow "flexible" arrays,
60 * we will separate each of the tables into a JNINativeMethod
61 * array, and a class with a name and a pointer to that array.
62 */
63 typedef struct
64 {
65 const char *className;
66 JNINativeMethod *methods;
67 } NativeClass;
70 //########################################################################
71 //# BASE OBJECT
72 //########################################################################
74 static jlong getPointer(JNIEnv *env, jobject obj)
75 {
76 jfieldID id = env->GetFieldID(env->GetObjectClass(obj), "_pointer", "J");
77 jlong val = env->GetLongField(obj, id);
78 return val;
79 }
81 static void setPointer(JNIEnv *env, jobject obj, jlong val)
82 {
83 jfieldID id = env->GetFieldID(env->GetObjectClass(obj), "_pointer", "J");
84 env->SetLongField(obj, id, val);
85 }
87 static void JNICALL DOMBase_construct
88 (JNIEnv *env, jobject obj)
89 {
90 setPointer(env, obj, 0L);
91 }
93 static void JNICALL DOMBase_destruct
94 (JNIEnv *env, jobject obj)
95 {
96 NodePtr *ptr = (NodePtr *)getPointer(env, obj);
97 if (ptr)
98 {
99 delete ptr;
100 }
101 setPointer(env, obj, 0L);
102 }
105 static JNINativeMethod nm_DOMBase[] =
106 {
107 { (char *)"construct", (char *)"()V", (void *)DOMBase_construct },
108 { (char *)"destruct", (char *)"()V", (void *)DOMBase_destruct },
109 { NULL, NULL, NULL }
110 };
112 static NativeClass nc_DOMBase =
113 {
114 "org/inkscape/dom/DOMBase",
115 nm_DOMBase
116 };
117 //########################################################################
118 //# DOMImplementation
119 //########################################################################
122 void JNICALL DOMImplementation_nCreateDocument
123 (JNIEnv *env, jobject obj)
124 {
125 DOMImplementationImpl domImpl;
126 DocumentTypePtr docType = domImpl.createDocumentType("", "", "");
127 DocumentPtr doc = domImpl.createDocument("", "", docType);
128 DocumentPtr *ptr = new DocumentPtr(doc);
129 setPointer(env, obj, (jlong)ptr);
130 }
134 static JNINativeMethod nm_DOMImplementation[] =
135 {
136 { (char *)"construct", (char *)"()V", (void *)DOMImplementation_nCreateDocument },
137 { NULL, NULL, NULL }
138 };
140 static NativeClass nc_DOMImplementation =
141 {
142 "org/inkscape/dom/DOMImplementation",
143 nm_DOMImplementation
144 };
148 //########################################################################
149 //# MAIN
150 //########################################################################
153 /**
154 * This is a table-of-tables, matching a class name to its
155 * table of native methods. We can probably think of a cleaner way
156 * of doing this
157 */
158 static NativeClass *allClasses[] =
159 {
160 &nc_DOMBase,
161 &nc_DOMImplementation,
162 NULL
163 };
167 bool JavaBinderyImpl::doBinding()
168 {
169 for (NativeClass **nc = allClasses ; *nc ; nc++)
170 {
171 bool ret = registerNatives((*nc)->className, (*nc)->methods);
172 if (!ret)
173 {
174 err("Could not bind native methods");
175 return false;
176 }
177 }
178 return true;
179 }
184 } // namespace Bind
185 } // namespace Inkscape
187 //########################################################################
188 //# E N D O F F I L E
189 //########################################################################