1 /* 2 * Copyright (c) 2003, 2008, 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.X11; 27 28 import sun.awt.X11CustomCursor; 29 import java.awt.*; 30 31 /** 32 * A class to encapsulate a custom image-based cursor. 33 * 34 * @see Component#setCursor 35 * @author Thomas Ball 36 * @author Bino George 37 */ 38 public class XCustomCursor extends X11CustomCursor { 39 40 public XCustomCursor(Image cursor, Point hotSpot, String name) 41 throws IndexOutOfBoundsException { 42 super(cursor, hotSpot, name); 43 } 44 45 /** 46 * Returns the supported cursor size 47 */ 48 static Dimension getBestCursorSize(int preferredWidth, int preferredHeight) { 49 50 // Fix for bug 4212593 The Toolkit.createCustomCursor does not 51 // check absence of the image of cursor 52 // We use XQueryBestCursor which accepts unsigned ints to obtain 53 // the largest cursor size that could be dislpayed 54 //Dimension d = new Dimension(Math.abs(preferredWidth), Math.abs(preferredHeight)); 55 Dimension d; 56 57 XToolkit.awtLock(); 58 try { 59 long display = XToolkit.getDisplay(); 60 long root_window = XlibWrapper.RootWindow(display, 61 XlibWrapper.DefaultScreen(display)); 62 63 XlibWrapper.XQueryBestCursor(display,root_window, Math.abs(preferredWidth),Math.abs(preferredHeight),XlibWrapper.larg1,XlibWrapper.larg2); 64 d = new Dimension(XlibWrapper.unsafe.getInt(XlibWrapper.larg1),XlibWrapper.unsafe.getInt(XlibWrapper.larg2)); 65 } 66 finally { 67 XToolkit.awtUnlock(); 68 } 69 return d; 70 } 71 72 protected void createCursor(byte[] xorMask, byte[] andMask, 73 int width, int height, 74 int fcolor, int bcolor, 75 int xHotSpot, int yHotSpot) 76 { 77 XToolkit.awtLock(); 78 try { 79 long display = XToolkit.getDisplay(); 80 long root_window = XlibWrapper.RootWindow(display, 81 XlibWrapper.DefaultScreen(display)); 82 83 long colormap = XToolkit.getDefaultXColormap(); 84 XColor fore_color = new XColor(); 85 86 fore_color.set_flags((byte) (XConstants.DoRed | XConstants.DoGreen | XConstants.DoBlue)); 87 fore_color.set_red((short)(((fcolor >> 16) & 0x000000ff) << 8)); 88 fore_color.set_green((short) (((fcolor >> 8) & 0x000000ff) << 8)); 89 fore_color.set_blue((short)(((fcolor >> 0) & 0x000000ff) << 8)); 90 91 XlibWrapper.XAllocColor(display,colormap,fore_color.pData); 92 93 94 XColor back_color = new XColor(); 95 back_color.set_flags((byte) (XConstants.DoRed | XConstants.DoGreen | XConstants.DoBlue)); 96 97 back_color.set_red((short) (((bcolor >> 16) & 0x000000ff) << 8)); 98 back_color.set_green((short) (((bcolor >> 8) & 0x000000ff) << 8)); 99 back_color.set_blue((short) (((bcolor >> 0) & 0x000000ff) << 8)); 100 101 XlibWrapper.XAllocColor(display,colormap,back_color.pData); 102 103 104 long nativeXorMask = Native.toData(xorMask); 105 long source = XlibWrapper.XCreateBitmapFromData(display,root_window,nativeXorMask,width,height); 106 107 long nativeAndMask = Native.toData(andMask); 108 long mask = XlibWrapper.XCreateBitmapFromData(display,root_window,nativeAndMask,width,height); 109 110 long cursor = XlibWrapper.XCreatePixmapCursor(display,source,mask,fore_color.pData,back_color.pData,xHotSpot,yHotSpot); 111 112 XlibWrapper.unsafe.freeMemory(nativeXorMask); 113 XlibWrapper.unsafe.freeMemory(nativeAndMask); 114 XlibWrapper.XFreePixmap(display,source); 115 XlibWrapper.XFreePixmap(display,mask); 116 back_color.dispose(); 117 fore_color.dispose(); 118 119 XGlobalCursorManager.setPData(this,cursor); 120 } 121 finally { 122 XToolkit.awtUnlock(); 123 } 124 125 } 126 }