gecko-dev/grendel/composition/AddressList.java

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32 KiB
Java

/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is the Grendel mail/news client.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1997
* Netscape Communications Corporation. All Rights Reserved.
*
* Contributors: Jeff Galyan <talisman@anamorphic.com>
* Edwin Woudt <edwin@woudt.nl>
*/
package grendel.composition;
/* Gadget organization:
an AddressList has one AddressPanel.
an AddressPanel has many AddressLine(s).
an AddressLine has one DeliveryButton, one AddressIcon and one AddressTextField.
*/
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
import javax.swing.*;
import javax.swing.JTable;
//import netscape.orion.misc.*;
public class AddressList extends JScrollPane implements Serializable {
protected AddressPanel mAddressPanel;
public AddressList() {
super();
//scroll panel
// JViewport spViewPort = getViewport();
JViewport spViewPort = new JViewport();
// System.out.println(spViewPort.toString());
//create addressList panel
mAddressPanel = new AddressPanel ();
//add address list panel to scroll panel.
spViewPort.add(mAddressPanel);
spViewPort.setView(mAddressPanel);
setViewport(spViewPort);
setBackground (Color.white);
}
int mProp1 = 0;
public void setProp1 (int aVal) {
mProp1 = aVal;
}
public int getProp1 () {
return mProp1;
}
int mProp2 = 0;
public void setProp2 (int aVal) {
mProp2 = aVal;
}
public int getProp2 () {
return mProp2;
}
/**
* Clears and sets the addresses from an Array.
* @param aAddresses An array of addresses.
* @see getAddresses()
*/
public void setAddresses (Addressee[] aAddresses) {
mAddressPanel.removeAllAddressLines (); //delete all entries.
if (null != aAddresses) {
for (int i = 0; i < aAddresses.length; i++) {
if (null != aAddresses[i])
mAddressPanel.addAddresseLine (aAddresses[i]);
}
}
mAddressPanel.repack();
}
/**
*/
public Dimension getPreferredSize() {
return mAddressPanel.getPreferredSize();
}
/**
* Returns the addresses in the form of an array.
* @returns An array of addresses.
* @see setAddresses()
*/
public Addressee[] getAddresses () {
Vector temp = mAddressPanel.mAddressees;
int i;
//reject blank entries.
for (i = 0; i < temp.size(); i++) {
AddressLine al = (AddressLine) temp.elementAt(i);
if (al.isBlank()) {
temp.removeElement (al);
}
}
//copy over from vector into array.
Addressee[] anArray = new Addressee[temp.size()];
for (i = 0; i < temp.size(); i++) {
anArray[i] = ((AddressLine) temp.elementAt(i)).getAddressee();
}
return anArray;
}
/**
*
*/
public class AddressPanel extends JPanel implements KeyListener {
protected Vector mAddressees; //Addresses
private Dimension mAddLineSize; //The size of one AddressLine. For layout.
private Dimension mPerfSize; //The preferred size of this panel = 4 * mAddLineSize.
public AddressPanel () {
super();
this.setLayout (null);
//vector for holding addressee list.
mAddressees = new Vector();
//create the first addressee to start them off.
repack();
}
/**
* layout Addressee lines.
*/
public void doLayout() {
int i;
Enumeration e;
Dimension size = getSize();
/*place each addressee line in one column multiple rows.
+---------------+
| addressee #1 |
|---------------|
| addressee #2 |
|---------------|
| ... |
|---------------|
| addressee #n |
+---------------+
*/
for (e = mAddressees.elements(), i = 0; e.hasMoreElements(); i++) {
AddressLine al = (AddressLine) e.nextElement();
al.setBounds(0, i * mAddLineSize.height, size.width, mAddLineSize.height);
}
}
// public Dimension getMaximumSize() {
// return getPreferredSize();
// }
// public Dimension getMinimumSize() {
// return getPreferredSize();
// }
public void addNotify () {
super.addNotify ();
//store the first AddressLine's size for layout.
AddressLine al = (AddressLine) mAddressees.elementAt(0);
mAddLineSize = al.getPreferredSize();
//the preferred size of the panel is 4 AddressLines tall and full parent width.
mPerfSize = new Dimension (mAddLineSize.width, 5 * mAddLineSize.height);
}
/**
* Returns the preferred size.
* The preferred size of the panel is 4 AddressLines tall and full parent width.
* @return
*/
public Dimension getPreferredSize() {
//the preferred size of the panel is 4 AddressLines tall and full parent width.
return (mPerfSize);
}
/**
* Adds a new address line to the list.
* @param aAddressee the Addresee you which to add.
* @see removeAddressLine
*/
private synchronized void addAddresseLine (Addressee aAddressee) {
//create the new AddressLine.
AddressLine al = new AddressLine (aAddressee);
//Add a keyboard listener for navigation
//so they may navigate BETWEEN AddressLines using arrow keys.
al.atfAddKeyListener (this);
add (al); //add AddressLine gadget to panel
mAddressees.addElement (al); //remember in vector table
validate(); //layout control again (scrollbar may appear).
}
/**
* Remove any blank lines from the middle
* and appends a single blank line to the list.
*/
private void repack () {
//remove blank lines
for (int i = 0; i < mAddressees.size() - 2; i++) {
AddressLine al = (AddressLine) mAddressees.elementAt(i);
if (al.isBlank()) {
removeAddressLine(al);
}
}
//no entries at all so add a blank line.
if (0 == mAddressees.size()) {
addAddresseLine (new Addressee ("", Addressee.TO));
}
else {
//add a blank last line if needed.
AddressLine lastAL = (AddressLine) mAddressees.elementAt(mAddressees.size() - 1);
if (!lastAL.isBlank()) {
addAddresseLine (new Addressee ("", lastAL.getDeliveryMode()));
}
}
}
/*
* Place focus on the last addressLine.
*/
private void focusOnLast () {
int last = mAddressees.size() - 1;
//get its TextFiled and set focus on it.
if (last > -1) {
AddressLine al = (AddressLine) mAddressees.elementAt(last);
al.atfRequestFocus();
}
}
/**
* Removes an address line from the list.
* @param aAddressLine The address line you wish to remove.
* @see addAddresseLine
*/
private synchronized void removeAddressLine (AddressLine aAddressLine) {
remove (aAddressLine); //remove AddressLine gadget from panel.
aAddressLine.atfRemoveKeyListener (this); //stop listening for key events.
mAddressees.removeElement (aAddressLine); //remove from vector table.
validate(); //layout control again (scrollbar).
repaint();
}
/**
* Removes all addressee lines.
* @see removeAddressLine
* @see addAddresseLine
*/
private synchronized void removeAllAddressLines () {
removeAll(); //remove all AddressLines gadget from panel.
mAddressees.removeAllElements(); //clear vector table.
validate(); //layout control again (scrollbar).
repaint();
}
/**
* Resonds to keyboard events for navigation (up, down, enter, etc.)
* @see addAddresseLine
*/
//implements KeyListener...
public void keyReleased (KeyEvent e) {}
public void keyTyped (KeyEvent e) {}
/* Recieve keyPressed events for this->AddressLine->AddressTextField.
KeyEvent response table
KEY_PRESSED Old Position State New Positon Behavior
---------------------------------------------------------------------------------------
VK_UP NOT first - Previous
VK_UP First - First
VK_DOWN NOT last - Next
VK_DOWN Last - Last
VK_BACK_SPACE First line empty First
VK_BACK_SPACE NOT first line empty Previous Delete this address line.
VK_DELETE Last line empty Last
VK_DELETE NOT last line empty Same Delete this address line.
*/
public void keyPressed (KeyEvent e) {
//filter out only the keys we're interested in.
if ((KeyEvent.KEY_PRESSED == e.getID()) &&
( (KeyEvent.VK_UP == e.getKeyCode()) ||
(KeyEvent.VK_BACK_SPACE == e.getKeyCode()) ||
(KeyEvent.VK_DELETE == e.getKeyCode()) ||
(KeyEvent.VK_DOWN == e.getKeyCode())
)
) {
//find out which AddressLine created this key press.
Component sourceComp = e.getComponent();
//check that this is an AddressTextField.
if (sourceComp instanceof AddressTextField) {
AddressTextField sourceATF = (AddressTextField)sourceComp;
//get its parent AddressLine gadget.
AddressLine sourceAL = (AddressLine) sourceATF.getParent();
//locate the AddressLine in the vector table mAddressees.
int lastIndex = mAddressees.lastIndexOf(sourceAL);
// This should never happen.
// (i.e. You should never get a KeyEvent from a gadget not in the mAddressees Vector)
// FIX: do something.
if (-1 == lastIndex) {
//System.out.println ("Internal error.");
}
else {
//calculate where to send focus depending on the keypress.
int incFocus = 0; //increment focus (-1, 0, +1)
//UP
if (KeyEvent.VK_UP == e.getKeyCode()) {
incFocus = -1; //focus previous.
}
//DOWN
else if (KeyEvent.VK_DOWN == e.getKeyCode()) {
incFocus = +1; //focus next.
}
//BACKSPACE or DELETE
else if ((KeyEvent.VK_BACK_SPACE == e.getKeyCode()) ||
(KeyEvent.VK_DELETE == e.getKeyCode())) {
//if they've pressed backspace or delete and this address line
// is already empty them delete this AddressLine.
//no matter what, if there is only one AddressLine left
// then don't delete it or try to change focus.
if (1 >= mAddressees.size())
return;
//Check to see if the current AddressTextField (ATF) is empty.
// If so then delete it.
if (sourceAL.isBlank()) {
//remove the AddressLine from this container and vector list.
removeAddressLine (sourceAL);
if (KeyEvent.VK_BACK_SPACE == e.getKeyCode())
incFocus = -1; //focus previous.
else //KeyEvent.VK_DELETE == e.getKeyCode()
incFocus = 0; //stay where you are.
}
}
//set focus to the next AddressTextField.
{
int nextIndex = lastIndex + incFocus;
if (nextIndex < 0) {
nextIndex = 0;
}
else if (nextIndex > (mAddressees.size() - 1)) {
nextIndex = mAddressees.size() - 1;
}
//get its TextFiled and set focus on it.
AddressLine nextAL = (AddressLine) mAddressees.elementAt(nextIndex);
nextAL.atfRequestFocus();
}
}
}
}
}
public void paint(Graphics g) {
//paint the AddressLine gadets.
super.paint(g);
Dimension size = getSize();
g.setColor (Color.blue);
//draw horizonttal lines BELOW the AddressLine gadgets.
for (int i = mAddressees.size() * mAddLineSize.height; i < size.height; i += mAddLineSize.height) {
g.drawLine (0, i, size.width, i);
}
//draw Vertical line BELOW the AddressLine gadgets and lined up with the left side addressee button.
if (0 < mAddressees.size()) {
AddressLine firstAddressLine = (AddressLine) mAddressees.elementAt(0);
int buttonWidth = firstAddressLine.getButtonWidth();
g.drawLine (buttonWidth, mAddressees.size() * mAddLineSize.height, buttonWidth, size.height);
}
}
}
//*************************
/**
* An AddressLine has one DeliveryButton and one AddressTextField.
*/
public class AddressLine extends JPanel {
private DeliveryButton mDeliveryButton;
private AddressTextField mAddressTextField;
private DragIcon mDragIcon;
private boolean mShowDeliveryButton = true;
public AddressLine (Addressee aAddressee) {
super();
this.setLayout (null); //see doLayout.
//left side delivery button ("To:")
mDeliveryButton = new DeliveryButton (aAddressee.getDelivery());
add (mDeliveryButton);
//center DragIcon
mDragIcon = new DragIcon();
add (mDragIcon);
//right side text field ("john_doe@company.com")
mAddressTextField = new AddressTextField (aAddressee.getText(), mDeliveryButton);
add (mAddressTextField);
}
protected void atfRemoveKeyListener(KeyListener kl){ mAddressTextField.removeKeyListener (kl); }
protected void atfAddKeyListener(KeyListener kl) { mAddressTextField.addKeyListener (kl); }
protected void atfRequestFocus() { mAddressTextField.requestFocus(); }
protected int getButtonWidth() { return mDeliveryButton.getPreferredSize ().width; }
protected boolean isBlank() { return mAddressTextField.getText().equals (""); }
protected int getDeliveryMode() { return mDeliveryButton.getDeliveryMode (); }
/**
* layout Delivery Button, DragIcon and AddressTextField.
*/
public void doLayout() {
/* Layout
+----------------+----------+---------------------+
| DeliveryButton | DragIcon | AddressTextField >>>|
+----------------+----------+---------------------+
*/
Dimension mySize = getSize(); //get this containers size.
//DeliveryButton
Dimension dbSize = mDeliveryButton.getPreferredSize ();
mDeliveryButton.setBounds(0, 0, dbSize.width, mySize.height);
int x = dbSize.width;
//DragIcon
Dimension diSize = mDragIcon.getPreferredSize ();
mDragIcon.setBounds(x, 0, diSize.width, mySize.height);
x += diSize.width;
//AddressTetField takes up the rest.
Dimension atfSize = mAddressTextField.getPreferredSize ();
mAddressTextField.setBounds(x, (mySize.height - atfSize.height)/2, mySize.width - x, mySize.height);
}
/*
*/
public Dimension getPreferredSize() {
return mDeliveryButton.getPreferredSize ();
}
/*
* Returns an Addressee for the line.
*/
protected Addressee getAddressee() {
return (new Addressee (mAddressTextField.getText(), mDeliveryButton.getDeliveryMode ()));
}
/**
* Paint the blue lines in the background.
*/
public void paint(Graphics g) {
super.paint(g);
Dimension size = getSize();
FontMetrics fm = g.getFontMetrics();
int buttonWidth = getButtonWidth();
g.setColor (Color.blue);
g.drawLine (buttonWidth, 0, size.width, 0); //top
g.drawLine (buttonWidth, size.height, size.width, size.height); //bottom
}
}
//*************************
/**
* Image icon for drag and drop.
*/
public class DragIcon extends JPanel {
private ImageIcon mIcon;
public DragIcon () {
super();
setBorder(BorderFactory.createEmptyBorder (5, 8, 5, 8));
//create image icon for drag and drop.
mIcon = new ImageIcon(getClass().getResource("images/card.gif"));
}
public void paint (Graphics g) {
Dimension size = getSize();
//try to center the icon.
int x = (size.width - mIcon.getIconWidth())/2;
x = (x < 0) ? 0 : x;
int y = (size.height - mIcon.getIconHeight())/2;
y = (y < 0) ? 0 : y;
mIcon.paintIcon (this, g, x, y);
}
}
public class AddressTextField extends JTextField implements FocusListener {
// public class AddressTextField extends ATC_Field implements FocusListener {
private final String ADDRESS_SEPERATORS = ",";
private final String ADDRESS_QUOTES = "\"";
private DeliveryButton mDeliveryButton;
public AddressTextField (String aString, DeliveryButton aDeliveryButton) {
super(aString);
// super (aString, new TestDataSource2());
mDeliveryButton = aDeliveryButton;
//red completion text.
// setCompletionColor (Color.red);
//NO border.
setBorder(null);
//get focus gained/lost events.
addFocusListener(this);
//catch tabs and enters before anyone else.
enableEvents (AWTEvent.KEY_EVENT_MASK); //see processKeyEvent
}
public void setCompletionColor(Color c) {
}
/**
* catch tabs before anyone else.
*/
public void processKeyEvent (KeyEvent e) {
//TAB
if ('\t' == e.getKeyChar())
return; //ignore tab characters.
//ENTER
if ('\n' == e.getKeyChar()) {
evaluate (); //evaluate this line for mutilple entries.
mAddressPanel.focusOnLast(); //Put focus on the last blank entry.
}
super.processKeyEvent(e);
}
/**
* stub
*/
public void focusGained(FocusEvent evt) {
}
/**
* On focusLost, evaluate line for multiple entries.
*/
public void focusLost(FocusEvent evt) {
evaluate ();
}
/**
* Evaluate line for multiple addresses, notify parent to add the new entries.
*/
private void evaluate() {
String [] tokens = parseLine (getText());
//we've lost focus and they type nothing or a bunch of ADDRESS_SEPERATORS on this line.
if (tokens.length == 0) {
setText ("");
}
//else they typed something....
else {
//we keep the first.
setText (tokens[0]);
//if more than one address is on this line then add the others.
if (tokens.length > 1) {
for (int i = 1; i < tokens.length; i++) {
mAddressPanel.addAddresseLine (new Addressee (tokens[i], mDeliveryButton.getDeliveryMode()));
}
}
}
//repack the lines. (remove blanks)
mAddressPanel.repack();
}
/**
* Parses up the string.
* @param aString The String to parse.
* @return returns an array of strings.
* @see ADDRESS_SEPERATORS
* @see ADDRESS_QUOTES
*/
private String[] parseLine (String aString) {
Vector tokenVec = new Vector ();
boolean quoted = false;
int tail = 0;
int head = 0;
//step through each character in the string.
for (head = 0; head < aString.length(); head++) {
//is this a quote character?
if (-1 != ADDRESS_QUOTES.indexOf(aString.charAt(head))) {
//are we already in a quoted string?
if (quoted) {
String token = aString.substring(tail, head + 1).trim();
//if this is not a blank then increment count.
if (!token.equals(""))
tokenVec.addElement(token);
tail = head + 1;
quoted = false; //quoting off
}
else {
tail = head; //remember the quote char.
quoted = true; //quoting on.
}
}
//is this a seperator character?
else if (-1 != ADDRESS_SEPERATORS.indexOf(aString.charAt(head))) {
//if not in a quote and not
if (!quoted) {
String token = aString.substring(tail, head).trim();
//if this is not a blank then increment count.
if (!token.equals(""))
tokenVec.addElement(token);
tail = head + 1;
}
}
}
//last token
String quotingChar = "";
//did we finish with an open quote?
if (quoted) {
quotingChar = aString.substring(tail, tail + 1); //add a matching quote.
}
String token = aString.substring(tail, head).trim();
//if this is not a blank then increment count.
if (!token.equals(""))
tokenVec.addElement(token + quotingChar);
//return an array of Strings.
String [] tokenArray = new String [tokenVec.size()];
tokenVec.copyInto(tokenArray);
return tokenArray;
}
}
//*************************
/**
* DeliveryButton displays "To:", "Cc:", etc and has a popup menu to change values.
*/
public class DeliveryButton extends JPanel implements
MouseListener, //show popup menu on mouse click
FocusListener, //display focus when tabbed to.
ActionListener, //get popup menu selection.
KeyListener { //show popup menu when focus and spacebar pressed.
private int mDeliveryMode;
// private Dimension mPerfSize = null;
private Dimension mPerfSize = new Dimension(50, 20);
private Insets mInsets = new Insets (4, 4, 4, 8);
private PopupMenu mPopup;
public DeliveryButton (int aDeliveryMode) {
//get your own mouse events for popup menu.
addMouseListener (this);
//get your own focus events for button highlight.
addFocusListener (this);
//display popup menu when in focus and spacebar pressed.
addKeyListener (this);
//create the popup menu..
mPopup = createPopup ();
//add popup to me.
add (mPopup);
setDeliveryMode (aDeliveryMode);
}
/**
* Creates the popup menu.
*/
private PopupMenu createPopup () {
PopupMenu pm = new PopupMenu (Addressee.getDeliveryTitle());
//added text commands to popup
for (int i = 0; i < Addressee.mDeliveryStr.length; i++) {
MenuItem mi = new MenuItem (Addressee.mDeliveryStr[i]);
pm.add (mi);
mi.addActionListener (this);
}
return pm;
}
/*
* Set the button delivery mode.
* @param aDeliveryMode a value like Addressee.TO or Addressee.BCC
* @see getDeliveryMode
*/
protected void setDeliveryMode (int aDeliveryMode) {
mDeliveryMode = aDeliveryMode;
repaint();
}
/*
* Return the button delivery mode.
* @return a delivery mode a value like Addressee.TO or Addressee.BCC
* @see setDeliveryMode
*/
protected int getDeliveryMode () { return mDeliveryMode; }
public Dimension getMaximumSize() {
return getPreferredSize();
}
public Dimension getMinimumSize() {
return getPreferredSize();
}
/**
* addNotify creates the preferred size dimension because only
* after the peer has been created can we get the font metrics.
*/
public void addNotify () {
super.addNotify ();
if (null == mPerfSize) {
Font fnt = getFont();
if (null != fnt) {
FontMetrics fm = getToolkit().getFontMetrics(fnt);
if (null != fm) {
String longestString = Addressee.getLongestString();
mPerfSize = new Dimension(fm.stringWidth(longestString) + mInsets.left + mInsets.right,
fm.getMaxAscent() + fm.getMaxDescent() + mInsets.top + mInsets.bottom);
}
}
}
}
/**
* Return PerfSize created in addNotify.
*/
public Dimension getPreferredSize() {
if (null != mPerfSize) {
return mPerfSize;
}
return new Dimension(50, 20);
}
public boolean isFocusTraversable() {
return true;
}
/**
* Display button highlight.
*/
public void focusGained(FocusEvent evt) {
repaint();
}
/**
* Remove button highlight.
*/
public void focusLost(FocusEvent evt) {
repaint();
}
/**
* Paint the button's bevels and arrow and text string (i.e. "To:")
*/
public void paint(Graphics g) {
Dimension size = getSize();
//gray background
g.setColor (Color.lightGray);
g.fillRect (0, 0, size.width - 1, size.height - 1);
//draw bezel borders
g.setColor (Color.white);
g.drawLine (0, 0, 0, size.height - 1); //top
g.drawLine (0, 0, size.width - 1, 0); //left
g.setColor (Color.black);
g.drawLine (size.width - 1, 0, size.width - 1, size.height - 1); //right
g.drawLine (0, size.height - 1, size.width - 1, size.height - 1); //bottom
//down arrow
g.setColor (Color.gray);
int xPoints[] = {0, 10, 5};
int yPoints[] = {0, 0, 10};
Polygon arrow = new Polygon (xPoints, yPoints, 3);
Rectangle arrowRect = arrow.getBounds();
int deltaX = mInsets.left;
int deltaY = (size.height - arrowRect.height)/2;
arrow.translate (deltaX, deltaY);
g.fillPolygon(arrow);
g.setColor (Color.white);
g.drawLine (xPoints[1] + deltaX,
yPoints[1] + deltaY,
xPoints[2] + deltaX,
yPoints[2] + deltaY); //right edge
//Delivery mode text (ie. "To:")
g.setColor (Color.black);
FontMetrics fm = g.getFontMetrics();
//Font height is wacky.
//g.drawString (mLabel, arrowRect.width + mInsets.left + 4, (fm.getHeight() + size.height)/2);
g.drawString (Addressee.deliveryToString(mDeliveryMode), arrowRect.width + mInsets.left + 4, fm.getHeight());
//draw focus rectangle (AWT 1.1 doesn't have support for line styles)
if (true == hasFocus()) {
final int offset = 3; //insets of focus rectangle.
//top and bottom
int bottomOffset = size.height - offset - 1;
for (int x = offset; x < size.width - offset; x += 2) {
g.drawLine (x, offset, x, offset); //top
g.drawLine (x, bottomOffset, x, bottomOffset); //bottom
}
//left and right
int rightOffset = size.width - offset - 1;
for (int y = offset; y < size.height - offset; y += 2) {
g.drawLine (offset, y, offset, y); //left
g.drawLine (rightOffset, y, rightOffset, y); //right
}
}
}
//implements KeyListener...
public void keyReleased (KeyEvent e) {}
public void keyTyped (KeyEvent e) {}
/*
* Display popup menu when spacebar pressed.
*/
public void keyPressed (KeyEvent e) {
if ((KeyEvent.KEY_PRESSED == e.getID()) &&
(KeyEvent.VK_SPACE == e.getKeyCode())) {
mPopup.show (e.getComponent (), 0, 0);
}
}
/**
* Called when popup menu item is selected.
*/
public void actionPerformed (ActionEvent e) {
String menuCommand = e.getActionCommand();
setDeliveryMode (Addressee.deliveryToInt (menuCommand));
}
public void mouseEntered (MouseEvent e) {}
public void mouseExited (MouseEvent e) {}
public void mouseReleased(MouseEvent e) {}
public void mouseClicked (MouseEvent e) {}
/**
* On any mouse click show the popup menu.
* Windows has bug for getX(), getY(). (UNIX OK)
*/
public void mousePressed (MouseEvent e) {
mPopup.show (e.getComponent (), e.getX(), e.getY());
}
}
}