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1: /* BasicComboBoxEditor.java -- 2: Copyright (C) 2004, 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: 39: package javax.swing.plaf.basic; 40: 41: import java.awt.Component; 42: import java.awt.event.ActionListener; 43: import java.awt.event.FocusEvent; 44: import java.awt.event.FocusListener; 45: 46: import javax.swing.ComboBoxEditor; 47: import javax.swing.JTextField; 48: import javax.swing.border.EmptyBorder; 49: 50: /** 51: * This is a component that is responsible for displaying/editting selected 52: * item in comboBox. By default, the JTextField is returned as 53: * BasicComboBoxEditor. 54: * 55: * @author Olga Rodimina 56: */ 57: public class BasicComboBoxEditor extends Object implements ComboBoxEditor, 58: FocusListener 59: { 60: protected JTextField editor; 61: 62: /** 63: * Creates a new BasicComboBoxEditor object. 64: */ 65: public BasicComboBoxEditor() 66: { 67: editor = new JTextField(); 68: editor.setBorder(new EmptyBorder(1, 1, 1, 1)); 69: } 70: 71: /** 72: * This method returns textfield that will be used by the combo box to 73: * display/edit currently selected item in the combo box. 74: * 75: * @return textfield that will be used by the combo box to display/edit 76: * currently selected item 77: */ 78: public Component getEditorComponent() 79: { 80: return editor; 81: } 82: 83: /** 84: * Sets item that should be edited when any editing operation is performed 85: * by the user. The value is always equal to the currently selected value 86: * in the combo box. Thus whenever a different value is selected from the 87: * combo box list then this method should be called to change editing 88: * item to the new selected item. 89: * 90: * @param item item that is currently selected in the combo box 91: */ 92: public void setItem(Object item) 93: { 94: editor.setText(item.toString()); 95: } 96: 97: /** 98: * This method returns item that is currently editable. 99: * 100: * @return item in the combo box that is currently editable 101: */ 102: public Object getItem() 103: { 104: return editor.getText(); 105: } 106: 107: public void selectAll() 108: { 109: editor.selectAll(); 110: } 111: 112: /** 113: * This method is called when textfield gains focus. This will enable 114: * editing of the selected item. 115: * 116: * @param e the FocusEvent describing change in focus. 117: */ 118: public void focusGained(FocusEvent e) 119: { 120: // FIXME: Need to implement 121: } 122: 123: /** 124: * This method is called when textfield loses focus. If during this time any 125: * editting operation was performed by the user, then it will be cancelled 126: * and selected item will not be changed. 127: * 128: * @param e the FocusEvent describing change in focus 129: */ 130: public void focusLost(FocusEvent e) 131: { 132: // FIXME: Need to implement 133: } 134: 135: /** 136: * This method adds actionListener to the editor. If the user will edit 137: * currently selected item in the textfield and pressEnter, then action 138: * will be performed. The actionPerformed of this ActionListener should 139: * change the selected item of the comboBox to the newly editted selected 140: * item. 141: * 142: * @param l the ActionListener responsible for changing selected item of the 143: * combo box when it is editted by the user. 144: */ 145: public void addActionListener(ActionListener l) 146: { 147: // FIXME: Need to implement 148: } 149: 150: /** 151: * This method removes actionListener from the textfield. 152: * 153: * @param l the ActionListener to remove from the textfield. 154: */ 155: public void removeActionListener(ActionListener l) 156: { 157: // FIXME: Need to implement 158: } 159: 160: public static class UIResource extends BasicComboBoxEditor 161: implements javax.swing.plaf.UIResource 162: { 163: /** 164: * Creates a new UIResource object. 165: */ 166: public UIResource() 167: { 168: } 169: } 170: }
GNU Classpath (0.17) |