Source code
/* $Id: UMLComboBox2.java 19630 2011-08-05 07:59:26Z bobtarling $
*****************************************************************************
* Copyright (c) 2009 Contributors - see below
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* tfmorris
*****************************************************************************
*
* Some portions of this file was previously release using the BSD License:
*/
// Copyright (c) 1996-2009 The Regents of the University of California. All
// Rights Reserved. Permission to use, copy, modify, and distribute this
// software and its documentation without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph appear in all copies. This software program and
// documentation are copyrighted by The Regents of the University of
// California. The software program and documentation are supplied "AS
// IS", without any accompanying services from The Regents. The Regents
// does not warrant that the operation of the program will be
// uninterrupted or error-free. The end-user understands that the program
// was developed for research purposes and is advised not to rely
// exclusively on the program for any reason. IN NO EVENT SHALL THE
// UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
// SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
// THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
// PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
// CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT,
// UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
package org.argouml.uml.ui;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import javax.swing.Action;
import javax.swing.ComboBoxModel;
import javax.swing.JComboBox;
import javax.swing.ListCellRenderer;
import org.argouml.ui.LookAndFeelMgr;
import org.argouml.ui.targetmanager.TargetEvent;
import org.argouml.ui.targetmanager.TargetListener;
import org.argouml.ui.targetmanager.TargettableModelView;
/**
* ComboBox for selecting UML Elements.
* @deprecated in 0.31.5 by Bob Tarling. Property panel controls are now
* internal to the property panel component
*/
@Deprecated
public class UMLComboBox2
extends JComboBox
implements TargettableModelView, TargetListener,
JComboBox.KeySelectionManager {
private static final int KEY_TIME_THRESHOLD_MILLIS = 1500;
private String searchString = "";
private long lastKeyEventTime;
/**
* Constructor for UMLComboBox2.
* @deprecated As of ArgoUml version unknown (before 0.13.5),
* replaced by {@link #UMLComboBox2(UMLComboBoxModel2, Action, boolean)}
* @param model the ComboBoxModel
*/
@Deprecated
UMLComboBox2(UMLComboBoxModel2 model) {
super(model);
setFont(LookAndFeelMgr.getInstance().getStandardFont());
addActionListener(this);
addPopupMenuListener(model);
}
/**
* Construct a UMLComboBox2.
*
* @param model a UMLComboBoxModel2 which provides UML elements for the user
* to choose from
* @param action action to invoke when an item is selected
* @param showIcon true if an icon should be shown in front of the items
*/
public UMLComboBox2(UMLComboBoxModel2 model, Action action,
boolean showIcon) {
super(model);
setFont(LookAndFeelMgr.getInstance().getStandardFont());
lastKeyEventTime = 0;
addActionListener(action);
// setDoubleBuffered(true);
setKeySelectionManager(this);
setRenderer(new UMLListCellRenderer2(showIcon));
addPopupMenuListener(model);
}
/*
* @see java.awt.event.ActionListener#actionPerformed(ActionEvent)
*/
@Override
public void actionPerformed(ActionEvent arg0) {
int i = getSelectedIndex();
if (i >= 0) {
doIt(arg0);
}
}
/**
* Implementation of the JComboBox.KeySelectionManager interface. Helps with
* navigating through the ComboBox when using the keyboard.
*
* @param key The key which has been pressed
* @param model Current ComboBoxModel
* @return int The index of the item that is to be selected
* @see javax.swing.JComboBox.KeySelectionManager#selectionForKey(char, javax.swing.ComboBoxModel)
*/
public int selectionForKey(char key, ComboBoxModel model)
{
long now = System.currentTimeMillis();
int index = -1;
int startAtIndex = 0;
// Implements backspace functionality
if (searchString != null && key == KeyEvent.VK_BACK_SPACE
&& searchString.length() > 0) {
searchString = searchString.substring(0, searchString.length() - 1);
}
else {
if (lastKeyEventTime + KEY_TIME_THRESHOLD_MILLIS < now) {
searchString = Character.toString(key);
}
else {
searchString = searchString + key;
startAtIndex = getSelectedIndex();
if (startAtIndex < 0) {
startAtIndex = 0;
}
}
}
String umlElemName = "";
String searchStringLowerCase = searchString.toLowerCase();
ListCellRenderer cellRenderer = getRenderer();
for (int i = startAtIndex, length = model.getSize(); i < length; i++) {
Object value = model.getElementAt(i);
if (cellRenderer instanceof UMLListCellRenderer2) {
umlElemName =
((UMLListCellRenderer2) cellRenderer).makeText(value);
} else {
umlElemName = value.toString();
}
if (umlElemName.toLowerCase().startsWith(searchStringLowerCase)) {
index = i;
break;
}
}
lastKeyEventTime = now;
return index;
}
/**
* The 'body' of the actionPerformed method. Is only called if there is
* actually a selection made.
*
* @param event the event
*/
protected void doIt(@SuppressWarnings("unused") ActionEvent event) { }
/**
* Utility method to get the current target.
*
* @return Object
*/
public Object getTarget() {
return ((UMLComboBoxModel2) getModel()).getTarget();
}
/*
* @see org.argouml.ui.targetmanager.TargettableModelView#getTargettableModel()
*/
public TargetListener getTargettableModel() {
return (TargetListener) getModel();
}
/*
* @see org.argouml.ui.targetmanager.TargetListener#targetAdded(org.argouml.ui.targetmanager.TargetEvent)
*/
public void targetAdded(TargetEvent e) {
if (e.getNewTarget() != getTarget()) {
removeActionListener(this);
}
}
/*
* @see org.argouml.ui.targetmanager.TargetListener#targetRemoved(org.argouml.ui.targetmanager.TargetEvent)
*/
public void targetRemoved(TargetEvent e) {
removeActionListener(this);
}
/*
* @see org.argouml.ui.targetmanager.TargetListener#targetSet(org.argouml.ui.targetmanager.TargetEvent)
*/
public void targetSet(TargetEvent e) {
addActionListener(this);
}
}