/*******************************************************************************
* Mission Control Technologies, Copyright (c) 2009-2012, United States Government
* as represented by the Administrator of the National Aeronautics and Space
* Administration. All rights reserved.
*
* The MCT platform is licensed under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*
* MCT includes source code licensed under additional open source licenses. See
* the MCT Open Source Licenses file included with this distribution or the About
* MCT Licenses dialog available at runtime from the MCT Help menu for additional
* information.
*******************************************************************************/
package gov.nasa.arc.mct.fastplot.utils;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JFormattedTextField;
import javax.swing.JMenu;
import javax.swing.JPopupMenu;
import javax.swing.JSpinner;
import javax.swing.SpinnerModel;
import javax.swing.SwingUtilities;
import javax.swing.border.EmptyBorder;
import javax.swing.event.MenuKeyEvent;
import javax.swing.event.MenuKeyListener;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.AbstractDocument;
import javax.swing.text.Document;
import javax.swing.text.DocumentFilter;
import javax.swing.text.PlainDocument;
/**
* A JSpinner that can be used as a menu item. (Includes key listeners to allow tabbing in, etc)
*/
public class MenuItemSpinner extends JSpinner {
private static final long serialVersionUID = 1571587288826156261L;
public MenuItemSpinner(SpinnerModel model, final JMenu menu) {
super(model);
final JSpinner spinner = this;
spinner.setBorder(new EmptyBorder(2,2,2,2));
final JFormattedTextField myTextField = ((NumberEditor) spinner
.getEditor()).getTextField();
final Document doc = myTextField.getDocument();
if (doc instanceof PlainDocument) {
AbstractDocument abstractDoc = new PlainDocument() {
/**
*
*/
private static final long serialVersionUID = 6648357467446359739L;
@Override
public void setDocumentFilter(DocumentFilter filter) {
if (filter instanceof NumberFilter) {
super.setDocumentFilter(filter);
}
}
};
abstractDoc.setDocumentFilter(new NumberFilter());
try {
abstractDoc.insertString(0, spinner.getValue().toString(), null);
} catch (BadLocationException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
myTextField.setDocument(abstractDoc);
myTextField.setValue(spinner.getValue());
}
spinner.addKeyListener(new KeyAdapter() {
@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_DELETE ) {
((NumberEditor) spinner.getEditor()).getTextField().setText("");
}
myTextField.grabFocus();
}
});
myTextField.addFocusListener(new FocusListener()
{
@Override
public void focusGained(FocusEvent e) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
myTextField.selectAll();
}
});
}
@Override
public void focusLost(java.awt.event.FocusEvent e) {
}
});
final NumberEditor numberEditor = (NumberEditor) spinner.getEditor();
numberEditor.setFocusable(true);
numberEditor.addKeyListener(new KeyListener() {
@Override
public void keyTyped(KeyEvent e) {
}
@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_LEFT &&
numberEditor.getTextField().getCaretPosition() == 0) {
menu.setSelected(true);
}
}
@Override
public void keyReleased(KeyEvent e) {
}
});
myTextField.addKeyListener(new KeyListener() {
@Override
public void keyTyped(KeyEvent e) {
}
@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_LEFT &&
numberEditor.getTextField().getCaretPosition() == 0) {
menu.setSelected(true);
menu.grabFocus();
((JPopupMenu) spinner.getParent()).setSelected(menu);
}
}
@Override
public void keyReleased(KeyEvent e) {
}
});
menu.addMenuKeyListener(new MenuKeyListener() {
@Override
public void menuKeyTyped(MenuKeyEvent e) {
}
@Override
public void menuKeyPressed(MenuKeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_RIGHT && menu.isSelected()) {
spinner.setVisible(true);
spinner.requestFocusInWindow();
((NumberEditor) spinner.getEditor()).requestFocusInWindow();
myTextField.selectAll();
}
}
@Override
public void menuKeyReleased(MenuKeyEvent e) {
}
});
}
class NumberFilter extends DocumentFilter {
private StringBuilder insertBuilder;
private StringBuilder replaceBuilder;
@Override
public void insertString(FilterBypass fb, int offset, String string, AttributeSet attr)
throws BadLocationException {
insertBuilder = new StringBuilder(string);
for (int k = insertBuilder.length() - 1; k >= 0; k--) {
int cp = insertBuilder.codePointAt(k);
if (! Character.isDigit(cp)) {
insertBuilder.deleteCharAt(k);
if (Character.isSupplementaryCodePoint(cp)) {
k--;
insertBuilder.deleteCharAt(k);
}
}
}
if (insertBuilder.length() + fb.getDocument().getLength() < 3) {
super.insertString(fb, offset, insertBuilder.toString(), attr);
}
}
@Override
public void replace(FilterBypass fb, int offset, int length, String string, AttributeSet attr)
throws BadLocationException {
replaceBuilder = new StringBuilder(string);
for (int k = replaceBuilder.length() - 1; k >= 0; k--) {
int cp = replaceBuilder.codePointAt(k);
if (! Character.isDigit(cp)) {
replaceBuilder.deleteCharAt(k);
if (Character.isSupplementaryCodePoint(cp)) {
k--;
replaceBuilder.deleteCharAt(k);
}
}
}
if ((replaceBuilder.length() - length + fb.getDocument().getLength()) < 3 ) {
if (replaceBuilder.length() - length + fb.getDocument().getLength() == 0) {
super.replace(fb, offset, length, "2", attr);
} else {
super.replace(fb, offset, length, replaceBuilder.toString(), attr);
}
}
}
}
}