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 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 @SuppressWarnings("serial") // JDK-implementation class 39 public class XCustomCursor extends X11CustomCursor { 40 XCustomCursor(Image cursor, Point hotSpot, String name)41 public XCustomCursor(Image cursor, Point hotSpot, String name) 42 throws IndexOutOfBoundsException { 43 super(cursor, hotSpot, name); 44 } 45 46 /** 47 * Returns the supported cursor size 48 */ getBestCursorSize(int preferredWidth, int preferredHeight)49 static Dimension getBestCursorSize(int preferredWidth, int preferredHeight) { 50 51 // Fix for bug 4212593 The Toolkit.createCustomCursor does not 52 // check absence of the image of cursor 53 // We use XQueryBestCursor which accepts unsigned ints to obtain 54 // the largest cursor size that could be dislpayed 55 //Dimension d = new Dimension(Math.abs(preferredWidth), Math.abs(preferredHeight)); 56 Dimension d; 57 58 XToolkit.awtLock(); 59 try { 60 long display = XToolkit.getDisplay(); 61 long root_window = XlibWrapper.RootWindow(display, 62 XlibWrapper.DefaultScreen(display)); 63 64 XlibWrapper.XQueryBestCursor(display,root_window, Math.abs(preferredWidth),Math.abs(preferredHeight),XlibWrapper.larg1,XlibWrapper.larg2); 65 d = new Dimension(XlibWrapper.unsafe.getInt(XlibWrapper.larg1),XlibWrapper.unsafe.getInt(XlibWrapper.larg2)); 66 if (preferredWidth > 0 && preferredHeight > 0) { 67 d.width = Math.min(d.width, preferredWidth); 68 d.height = Math.min(d.height, preferredHeight); 69 } 70 } 71 finally { 72 XToolkit.awtUnlock(); 73 } 74 return d; 75 } 76 createCursor(byte[] xorMask, byte[] andMask, int width, int height, int fcolor, int bcolor, int xHotSpot, int yHotSpot)77 protected void createCursor(byte[] xorMask, byte[] andMask, 78 int width, int height, 79 int fcolor, int bcolor, 80 int xHotSpot, int yHotSpot) 81 { 82 XToolkit.awtLock(); 83 try { 84 long display = XToolkit.getDisplay(); 85 long root_window = XlibWrapper.RootWindow(display, 86 XlibWrapper.DefaultScreen(display)); 87 88 long colormap = XToolkit.getDefaultXColormap(); 89 XColor fore_color = new XColor(); 90 91 fore_color.set_flags((byte) (XConstants.DoRed | XConstants.DoGreen | XConstants.DoBlue)); 92 fore_color.set_red((short)(((fcolor >> 16) & 0x000000ff) << 8)); 93 fore_color.set_green((short) (((fcolor >> 8) & 0x000000ff) << 8)); 94 fore_color.set_blue((short)(((fcolor >> 0) & 0x000000ff) << 8)); 95 96 XlibWrapper.XAllocColor(display,colormap,fore_color.pData); 97 98 99 XColor back_color = new XColor(); 100 back_color.set_flags((byte) (XConstants.DoRed | XConstants.DoGreen | XConstants.DoBlue)); 101 102 back_color.set_red((short) (((bcolor >> 16) & 0x000000ff) << 8)); 103 back_color.set_green((short) (((bcolor >> 8) & 0x000000ff) << 8)); 104 back_color.set_blue((short) (((bcolor >> 0) & 0x000000ff) << 8)); 105 106 XlibWrapper.XAllocColor(display,colormap,back_color.pData); 107 108 109 long nativeXorMask = Native.toData(xorMask); 110 long source = XlibWrapper.XCreateBitmapFromData(display,root_window,nativeXorMask,width,height); 111 112 long nativeAndMask = Native.toData(andMask); 113 long mask = XlibWrapper.XCreateBitmapFromData(display,root_window,nativeAndMask,width,height); 114 115 long cursor = XlibWrapper.XCreatePixmapCursor(display,source,mask,fore_color.pData,back_color.pData,xHotSpot,yHotSpot); 116 117 XlibWrapper.unsafe.freeMemory(nativeXorMask); 118 XlibWrapper.unsafe.freeMemory(nativeAndMask); 119 XlibWrapper.XFreePixmap(display,source); 120 XlibWrapper.XFreePixmap(display,mask); 121 back_color.dispose(); 122 fore_color.dispose(); 123 124 XGlobalCursorManager.setPData(this,cursor); 125 } 126 finally { 127 XToolkit.awtUnlock(); 128 } 129 130 } 131 } 132