1 /*
   2  * Copyright (c) 1995, 2016, 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 #ifdef HEADLESS
  27     #error This file should not be included in headless library
  28 #endif
  29 
  30 #include "awt_p.h"
  31 #include "color.h"
  32 #include <X11/Xatom.h>
  33 #include <X11/Xmd.h>
  34 #include <X11/Xutil.h>
  35 #include <X11/Xproto.h>
  36 #include <jni.h>
  37 #include <jni_util.h>
  38 #include <sys/time.h>
  39 
  40 
  41 #include "java_awt_event_MouseWheelEvent.h"
  42 
  43 /*
  44  * Called by "ToolkitErrorHandler" function in "XlibWrapper.c" file.
  45  */
  46 XErrorHandler current_native_xerror_handler = NULL;
  47 
  48 extern jint getModifiers(uint32_t state, jint button, jint keyCode);
  49 extern jint getButton(uint32_t button);
  50 
  51 static Atom OLDecorDelAtom = 0;
  52 static Atom MWMHints = 0;
  53 static Atom DTWMHints = 0;
  54 static Atom decor_list[9];
  55 
  56 #ifndef MAX
  57 #define MAX(a,b) ((a) > (b) ? (a) : (b))
  58 #endif
  59 
  60 #ifndef MIN
  61 #define MIN(a,b) ((a) < (b) ? (a) : (b))
  62 #endif
  63 
  64 jboolean
  65 awtJNI_ThreadYield(JNIEnv *env, jclass threadClass, jmethodID yieldMethodID) {
  66 
  67     (*env)->CallStaticVoidMethod(env, threadClass, yieldMethodID);
  68     DASSERT(!((*env)->ExceptionOccurred(env)));
  69     if ((*env)->ExceptionCheck(env)) {
  70         return JNI_FALSE;
  71     }
  72     return JNI_TRUE;
  73 }