1 /* 2 * Copyright (c) 1999, 2000, 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 package sun.awt.windows; 27 28 import java.awt.*; 29 import sun.awt.GlobalCursorManager; 30 import sun.awt.LightweightFrame; 31 import sun.swing.JLightweightFrame; 32 import sun.swing.LightweightContent; 33 import sun.swing.SwingAccessor; 34 35 public final class WGlobalCursorManager extends GlobalCursorManager { 36 private static WGlobalCursorManager manager; 37 38 public static GlobalCursorManager getCursorManager() { 39 if (manager == null) { 40 manager = new WGlobalCursorManager(); 41 } 42 return manager; 43 } 44 45 /** 46 * Should be called in response to a native mouse enter or native mouse 47 * button released message. Should not be called during a mouse drag. 48 */ 49 public static void nativeUpdateCursor(Component heavy) { 50 WGlobalCursorManager.getCursorManager().updateCursorLater(heavy); 51 } 52 53 protected void setCursor(final Component comp, final Cursor cursor, final boolean u) { 54 JLightweightFrame lwFrameUnderCursor = WLightweightFramePeer.getFrameUnderCursor(); 55 if (lwFrameUnderCursor != null) { 56 LightweightContent lwContent = SwingAccessor 57 .getJLightweightFrameAccessor() 58 .getLightweightContent(lwFrameUnderCursor); 59 lwContent.invokeOnClientToolkitThread(() -> setCursorDirect(comp, cursor, u)); 60 } else { 61 setCursorImpl(comp, cursor, u); 62 } 63 } 64 65 protected native void setCursorImpl(Component comp, Cursor cursor, boolean u); 66 protected native void setCursorDirect(Component component, Cursor cursor, boolean u); 67 protected native void getCursorPos(Point p); 68 protected native Component findComponentAt(Container con, int x, int y); 69 /* 70 * two native methods to call corresponding methods in Container and 71 * Component 72 */ 73 protected native Component findHeavyweightUnderCursor(boolean useCache); 74 protected native Point getLocationOnScreen(Component com); 75 }