Frames | No Frames |
1: /* QtCheckboxPeer.java -- 2: Copyright (C) 2005 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.qt; 39: 40: import java.awt.Rectangle; 41: import java.awt.Checkbox; 42: import java.awt.CheckboxGroup; 43: import java.awt.event.ItemEvent; 44: import java.awt.peer.CheckboxPeer; 45: import java.util.WeakHashMap; 46: 47: public class QtCheckboxPeer extends QtComponentPeer implements CheckboxPeer 48: { 49: private CheckboxGroup group; 50: 51: // Map QButtonGroup<->CheckboxGroup 52: private static WeakHashMap groupMap; 53: 54: static 55: { 56: groupMap = new WeakHashMap(); 57: } 58: 59: public QtCheckboxPeer( QtToolkit kit, Checkbox owner ) 60: { 61: super( kit, owner ); 62: } 63: 64: protected native void init(); 65: 66: protected void setup() 67: { 68: super.setup(); 69: setCheckboxGroup( ((Checkbox)owner).getCheckboxGroup() ); 70: setLabel( ((Checkbox)owner).getLabel() ); 71: setState( ((Checkbox)owner).getState() ); 72: } 73: 74: private void fireToggle(boolean checked) 75: { 76: if (group == null) 77: ((Checkbox)owner).setState( checked ); 78: else 79: if ( checked ) 80: group.setSelectedCheckbox((Checkbox)owner); 81: 82: int sel = checked ? ItemEvent.SELECTED : ItemEvent.DESELECTED; 83: ItemEvent e = new ItemEvent((Checkbox)owner, 84: ItemEvent.ITEM_STATE_CHANGED, 85: ((Checkbox)owner).getLabel(), 86: sel); 87: QtToolkit.eventQueue.postEvent(e); 88: } 89: 90: // ************ Public methods ********************* 91: 92: public void setCheckboxGroup( CheckboxGroup group ) 93: { 94: if(this.group == group) 95: return; 96: 97: // if we change from a checkbox to a radio button or vice versa 98: if((this.group == null) != (group == null)) 99: { 100: this.group = group; 101: callInit(); 102: setup(); 103: } 104: 105: this.group = group; 106: } 107: 108: public native void setLabel( String label ); 109: 110: public native void setState( boolean state ); 111: 112: } 113: