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1: /* GtkGenericPeer.java - Has a hashcode. Yuck. 2: Copyright (C) 1998, 1999, 2002, 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: 39: package gnu.java.awt.peer.gtk; 40: 41: import java.awt.EventQueue; 42: import java.awt.Font; 43: import java.awt.Toolkit; 44: import java.awt.event.ActionEvent; 45: 46: public class GtkGenericPeer 47: { 48: // Used by Native State Association (NSA) functions to map 49: // gtk_widget to peer object. 50: final int native_state = getUniqueInteger (); 51: 52: // Next native state value we will assign. 53: private static int next_native_state = 0; 54: 55: // The widget or other java-side object we wrap. 56: protected final Object awtWidget; 57: 58: /** 59: * Dispose of our native state. Calls gtk_widget_destroy on the 60: * native widget and removes the awtWidget from the native state 61: * tables. Should be overridden by subclasses if this is not (all) 62: * that needs to be done. 63: */ 64: public native void dispose (); 65: 66: static EventQueue q () 67: { 68: return Toolkit.getDefaultToolkit ().getSystemEventQueue (); 69: } 70: 71: protected GtkGenericPeer (Object awtWidget) 72: { 73: this.awtWidget = awtWidget; 74: } 75: 76: protected void postActionEvent (String command, int mods) 77: { 78: q().postEvent (new ActionEvent (awtWidget, ActionEvent.ACTION_PERFORMED, 79: command, mods)); 80: } 81: 82: // Return a unique integer for use in the native state mapping 83: // code. We can't use a hash code since that is not guaranteed to 84: // be unique. 85: static synchronized int getUniqueInteger () 86: { 87: // Let's assume this will never wrap. 88: return next_native_state++; 89: } 90: 91: /** 92: * Helper method to set Font for Gtk Widget. 93: */ 94: protected void gtkWidgetModifyFont(Font f) 95: { 96: gtkWidgetModifyFont(f.getName(), f.getStyle(), f.getSize()); 97: } 98: 99: /** 100: * Sets font for this Gtk Widget. Should be overridden by peers which 101: * are composed of different widgets or are contained in bins. 102: */ 103: protected native void gtkWidgetModifyFont(String name, int style, int size); 104: 105: static void printCurrentThread () 106: { 107: System.out.println ("gtkgenericpeer, thread: " + Thread.currentThread ()); 108: } 109: }