1 /*
2 * Copyright (c) 1995, 2004, 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 _AWT_UTIL_H_
27 #define _AWT_UTIL_H_
28
29 #ifndef HEADLESS
30 #include "gdefs.h"
31
32 #define WITH_XERROR_HANDLER(f) do { \
33 XSync(awt_display, False); \
34 xerror_code = Success; \
35 xerror_saved_handler = XSetErrorHandler(f); \
36 } while (0)
37
38 /* Convenience macro for handlers to use */
39 #define XERROR_SAVE(err) do { \
40 xerror_code = (err)->error_code; \
41 } while (0)
42
43 #define RESTORE_XERROR_HANDLER do { \
44 XSync(awt_display, False); \
45 XSetErrorHandler(xerror_saved_handler); \
46 } while (0)
47
48 #define EXEC_WITH_XERROR_HANDLER(f, code) do { \
49 WITH_XERROR_HANDLER(f); \
50 do { \
51 code; \
52 } while (0); \
53 RESTORE_XERROR_HANDLER; \
54 } while (0)
55
56 /*
57 * Since X reports protocol errors asynchronously, we often need to
58 * install an error handler that acts like a callback. While that
59 * specialized handler is installed we save original handler here.
60 */
61 extern XErrorHandler xerror_saved_handler;
62
63 /*
64 * A place for error handler to report the error code.
65 */
66 extern unsigned char xerror_code;
67
68 #endif /* !HEADLESS */
69
70 #ifndef INTERSECTS
71 #define INTERSECTS(r1_x1,r1_x2,r1_y1,r1_y2,r2_x1,r2_x2,r2_y1,r2_y2) \
72 !((r2_x2 <= r1_x1) ||\
73 (r2_y2 <= r1_y1) ||\
74 (r2_x1 >= r1_x2) ||\
75 (r2_y1 >= r1_y2))
76 #endif
77
78 #ifndef MIN
79 #define MIN(a,b) ((a) < (b) ? (a) : (b))
80 #endif
81 #ifndef MAX
82 #define MAX(a,b) ((a) > (b) ? (a) : (b))
83 #endif
84
85 struct DPos {
86 int32_t x;
87 int32_t y;
88 int32_t mapped;
89 void *data;
90 void *peer;
91 int32_t echoC;
92 };
93
94 extern void awtJNI_ThreadYield(JNIEnv *env);
95
96 /*
97 * Functions for accessing fields by name and signature
98 */
99
100 JNIEXPORT jobject JNICALL
101 JNU_GetObjectField(JNIEnv *env, jobject self, const char *name,
102 const char *sig);
103
104 JNIEXPORT jboolean JNICALL
105 JNU_SetObjectField(JNIEnv *env, jobject self, const char *name,
106 const char *sig, jobject val);
107
108 JNIEXPORT jlong JNICALL
109 JNU_GetLongField(JNIEnv *env, jobject self, const char *name);
110
111 JNIEXPORT jint JNICALL
112 JNU_GetIntField(JNIEnv *env, jobject self, const char *name);
113
114 JNIEXPORT jboolean JNICALL
115 JNU_SetIntField(JNIEnv *env, jobject self, const char *name, jint val);
116
117 JNIEXPORT jboolean JNICALL
118 JNU_SetLongField(JNIEnv *env, jobject self, const char *name, jlong val);
119
120 JNIEXPORT jboolean JNICALL
121 JNU_GetBooleanField(JNIEnv *env, jobject self, const char *name);
122
123 JNIEXPORT jboolean JNICALL
124 JNU_SetBooleanField(JNIEnv *env, jobject self, const char *name, jboolean val);
125
126 JNIEXPORT jint JNICALL
127 JNU_GetCharField(JNIEnv *env, jobject self, const char *name);
128
129 #endif /* _AWT_UTIL_H_ */