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1: /* XGraphicsDevice.java -- GraphicsDevice for X 2: Copyright (C) 2006 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: package gnu.java.awt.peer.x; 39: 40: import gnu.classpath.SystemProperties; 41: import gnu.java.net.local.LocalSocket; 42: import gnu.java.net.local.LocalSocketAddress; 43: import gnu.x11.Connection; 44: import gnu.x11.Display; 45: 46: import java.awt.AWTError; 47: import java.awt.GraphicsConfiguration; 48: import java.awt.GraphicsDevice; 49: import java.net.SocketException; 50: 51: /** 52: * This class represents an X Display. The actual connection is established 53: * lazily when it is first needed. 54: * 55: * @author Roman Kennke (kennke@aicas.com) 56: */ 57: public class XGraphicsDevice 58: extends GraphicsDevice 59: { 60: 61: private XGraphicsConfiguration defaultConfiguration; 62: 63: /** 64: * The X display associated with the XGraphicsDevice. This is established 65: * when {@link #getDisplay} is first called. 66: */ 67: private Display display; 68: 69: /** 70: * The display name from which the display will be initialized. 71: */ 72: private Display.Name displayName; 73: 74: /** 75: * The event pump for this X Display. 76: */ 77: private XEventPump eventPump; 78: 79: /** 80: * Creates a new XGraphicsDevice. 81: */ 82: XGraphicsDevice(Display.Name dn) 83: { 84: displayName = dn; 85: } 86: 87: public int getType() 88: { 89: return TYPE_RASTER_SCREEN; 90: } 91: 92: public String getIDstring() 93: { 94: // TODO: Implement this. 95: throw new UnsupportedOperationException("Not yet implemented."); 96: } 97: 98: public GraphicsConfiguration[] getConfigurations() 99: { 100: // TODO: Implement this. 101: throw new UnsupportedOperationException("Not yet implemented."); 102: } 103: 104: public GraphicsConfiguration getDefaultConfiguration() 105: { 106: if (defaultConfiguration == null) 107: defaultConfiguration = new XGraphicsConfiguration(this); 108: return defaultConfiguration; 109: } 110: 111: /** 112: * Returns the X Display associated with this XGraphicsDevice. 113: * This establishes the connection to the X server on the first invocation. 114: * 115: * @return the X Display associated with this XGraphicsDevice 116: */ 117: Display getDisplay() 118: { 119: if (display == null) 120: { 121: if (displayName.hostname.equals("")) 122: displayName.hostname = "localhost"; 123: if (XToolkit.DEBUG) 124: System.err.println("connecting to : " + displayName); 125: // Try to connect via unix domain sockets when host == localhost. 126: if ((displayName.hostname.equals("localhost") 127: || displayName.hostname.equals("")) 128: && SystemProperties.getProperty("gnu.xawt.no_local_sockets") == null) 129: { 130: // TODO: Is this 100% ok? 131: String sockPath = "/tmp/.X11-unix/X" + displayName.display_no; 132: LocalSocketAddress addr = new LocalSocketAddress(sockPath); 133: try 134: { 135: if (XToolkit.DEBUG) 136: System.err.println("connecting to local socket: " 137: + sockPath); 138: LocalSocket socket = new LocalSocket(addr); 139: display = new Display(socket, "localhost", 140: displayName.display_no, 141: displayName.screen_no); 142: display.connection.send_mode = Connection.ASYNCHRONOUS; 143: if (XToolkit.DEBUG) 144: System.err.println("connected to local socket"); 145: } 146: catch (SocketException ex) 147: { 148: AWTError err = new AWTError("could not connect to X server"); 149: err.initCause(ex); 150: throw err; 151: } 152: } 153: else 154: { 155: display = new Display(displayName); 156: } 157: eventPump = new XEventPump(display); 158: } 159: return display; 160: } 161: 162: XEventPump getEventPump() 163: { 164: return eventPump; 165: } 166: }