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Java example source code file (awt_AWTEvent.cpp)
The awt_AWTEvent.cpp Java example source code/* * Copyright (c) 1998, 2002, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ #include "awt_AWTEvent.h" #include "awt_Component.h" #include <java_awt_AWTEvent.h> /************************************************************************ * AwtAWTEvent fields */ jfieldID AwtAWTEvent::bdataID; jfieldID AwtAWTEvent::idID; jfieldID AwtAWTEvent::consumedID; /************************************************************************ * AwtAWTEvent static methods */ void AwtAWTEvent::saveMSG(JNIEnv *env, MSG *pMsg, jobject jevent) { if (env->EnsureLocalCapacity(1) < 0) { return; } jbyteArray bdata = env->NewByteArray(sizeof(MSG)); if(bdata == 0) { throw std::bad_alloc(); } env->SetByteArrayRegion(bdata, 0, sizeof(MSG), (jbyte *)pMsg); DASSERT(AwtAWTEvent::bdataID); env->SetObjectField(jevent, AwtAWTEvent::bdataID, bdata); env->DeleteLocalRef(bdata); } /************************************************************************ * AwtEvent native methods */ extern "C" { /* * Class: java_awt_AWTEvent * Method: initIDs * Signature: ()V */ JNIEXPORT void JNICALL Java_java_awt_AWTEvent_initIDs(JNIEnv *env, jclass cls) { TRY; AwtAWTEvent::bdataID = env->GetFieldID(cls, "bdata", "[B"); AwtAWTEvent::idID = env->GetFieldID(cls, "id", "I"); AwtAWTEvent::consumedID = env->GetFieldID(cls, "consumed", "Z"); DASSERT(AwtAWTEvent::bdataID != NULL); DASSERT(AwtAWTEvent::idID != NULL); DASSERT(AwtAWTEvent::consumedID != NULL); CATCH_BAD_ALLOC; } /* * Class: java_awt_AWTEvent * Method: nativeSetSource * Signature: (Ljava/awt/peer/ComponentPeer;)V */ JNIEXPORT void JNICALL Java_java_awt_AWTEvent_nativeSetSource (JNIEnv *env, jobject self, jobject newSource) { TRY; JNI_CHECK_NULL_RETURN(self, "null AWTEvent"); MSG *pMsg; jbyteArray bdata = (jbyteArray) env->GetObjectField(self, AwtAWTEvent::bdataID); if (bdata != NULL) { jboolean dummy; PDATA pData; JNI_CHECK_PEER_RETURN(newSource); AwtComponent *p = (AwtComponent *)pData; HWND hwnd = p->GetHWnd(); pMsg = (MSG *)env->GetPrimitiveArrayCritical(bdata, &dummy); if (pMsg == NULL) { throw std::bad_alloc(); } pMsg->hwnd = hwnd; env->ReleasePrimitiveArrayCritical(bdata, (void *)pMsg, 0); } CATCH_BAD_ALLOC; } } /* extern "C" */ Other Java examples (source code examples)Here is a short list of links related to this Java awt_AWTEvent.cpp source code file: |
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