1/* 2 * Copyright (c) 2003, 2014, 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#include <windowsx.h> 27#include <jni.h> 28#include <jni_util.h> 29#include "awt.h" 30#include "awt_Object.h" 31#include "awt_Component.h" 32 33extern "C" { 34 35/* 36 * Class: sun_awt_windows_WMouseInfoPeer 37 * Method: isWindowUnderMouse 38 * Signature: (Ljava/awt/Window)Z 39 */ 40JNIEXPORT jboolean JNICALL 41Java_sun_awt_windows_WMouseInfoPeer_isWindowUnderMouse(JNIEnv *env, jclass cls, 42 jobject window) 43{ 44 POINT pt; 45 46 if (env->EnsureLocalCapacity(1) < 0) { 47 return JNI_FALSE; 48 } 49 50 jobject winPeer = AwtObject::GetPeerForTarget(env, window); 51 PDATA pData; 52 pData = JNI_GET_PDATA(winPeer); 53 env->DeleteLocalRef(winPeer); 54 if (pData == NULL) { 55 return JNI_FALSE; 56 } 57 58 AwtComponent * ourWindow = (AwtComponent *)pData; 59 HWND hwnd = ourWindow->GetHWnd(); 60 VERIFY(::GetCursorPos(&pt)); 61 62 AwtComponent * componentFromPoint = AwtComponent::GetComponent(::WindowFromPoint(pt)); 63 64 while (componentFromPoint != NULL 65 && componentFromPoint->GetHWnd() != hwnd 66 && !AwtComponent::IsTopLevelHWnd(componentFromPoint->GetHWnd())) 67 { 68 componentFromPoint = componentFromPoint->GetParent(); 69 } 70 71 return ((componentFromPoint != NULL) && (componentFromPoint->GetHWnd() == hwnd)) ? JNI_TRUE : JNI_FALSE; 72 73} 74 75/* 76 * Class: sun_awt_windows_WMouseInfoPeer 77 * Method: fillPointWithCoords 78 * Signature: (Ljava/awt/Point)I 79 */ 80JNIEXPORT jint JNICALL 81Java_sun_awt_windows_WMouseInfoPeer_fillPointWithCoords(JNIEnv *env, jclass cls, jobject point) 82{ 83 static jclass pointClass = NULL; 84 static jfieldID xID, yID; 85 POINT pt; 86 87 VERIFY(::GetCursorPos(&pt)); 88 if (pointClass == NULL) { 89 jclass pointClassLocal = env->FindClass("java/awt/Point"); 90 DASSERT(pointClassLocal != NULL); 91 if (pointClassLocal == NULL) { 92 return (jint)0; 93 } 94 pointClass = (jclass)env->NewGlobalRef(pointClassLocal); 95 env->DeleteLocalRef(pointClassLocal); 96 } 97 98 HMONITOR monitor = MonitorFromPoint(pt, MONITOR_DEFAULTTOPRIMARY); 99 int screen = AwtWin32GraphicsDevice::GetScreenFromHMONITOR(monitor); 100 Devices::InstanceAccess devices; 101 AwtWin32GraphicsDevice *device = devices->GetDevice(screen); 102 103 xID = env->GetFieldID(pointClass, "x", "I"); 104 CHECK_NULL_RETURN(xID, (jint)0); 105 yID = env->GetFieldID(pointClass, "y", "I"); 106 CHECK_NULL_RETURN(yID, (jint)0); 107 108 int x = (device == NULL) ? pt.x : device->ScaleDownX(pt.x); 109 int y = (device == NULL) ? pt.y : device->ScaleDownY(pt.y); 110 111 env->SetIntField(point, xID, x); 112 env->SetIntField(point, yID, y); 113 114 // Always return 0 on Windows: we assume there's always a 115 // virtual screen device used. 116 return (jint)0; 117} 118 119} // extern "C" 120