package open.dolphin.ui;
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentEvent;
import java.awt.event.ComponentListener;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.ArrayList;
import java.util.List;
import java.util.prefs.Preferences;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.swing.BoxLayout;
import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.JWindow;
import javax.swing.ListSelectionModel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import org.apache.commons.lang.StringUtils;
/**
* CompletableJTextField
* modified from JAVA SWING HACKS
* @author pns
*/
public class CompletableJTextField extends JTextField implements ListSelectionListener, FocusListener, KeyListener, ComponentListener {
private static final long serialVersionUID = 1L;
private static final String PREFS = "prefs";
private Completer completer;
private JList completionList;
private DefaultListModel completionListModel;
private JWindow listWindow;
private Window parentFrame;
private int keyCode;
private Preferences prefs;
public CompletableJTextField(int col) {
super(col);
initComponents();
connect();
}
private void initComponents() {
completer = new Completer();
completionListModel = new DefaultListModel();
completionList = new JList(completionListModel);
completionList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
listWindow = new JWindow();
com.sun.awt.AWTUtilities.setWindowOpacity(listWindow, 0.9f);
listWindow.getContentPane().add(completionList);
}
private void connect() {
completionList.addListSelectionListener(this);
getDocument().addDocumentListener(completer);
addFocusListener(this);
addKeyListener(this);
addComponentListener(this);
}
/**
* 補完した内容を保存する preferences をセットする
* @param prefs
*/
public void setPreferences(Preferences prefs) {
this.prefs = prefs;
loadPrefs();
}
private void savePrefs() {
StringBuilder sb = new StringBuilder();
List<String> items = getCompletions();
for (String s : items) {
sb.append(s).append("\t");
}
prefs.put(PREFS, StringUtils.chop(sb.toString()));
}
private void loadPrefs() {
String str = prefs.get(PREFS, "");
String[] items = str.split("\t");
for(String s : items) {
if (! s.equals("")) { completer.addCompletion(s); }
}
}
public void addCompletion(String s) {
completer.addCompletion(s);
if (prefs != null) { savePrefs(); }
}
public void removeCompletion(String s) {
completer.removeCompletion(s);
}
public void clearCompletions(String s ) {
completer.clearCompletions();
}
public List<String> getCompletions() {
return completer.getCompletions();
}
/**
* 補完ウインドウを適切な場所に表示する
*/
private void showListWindow() {
// figure out where the text field is,
// and where its bottom left is
java.awt.Point los = getLocationOnScreen();
int popX = los.x;
int popY = los.y + getHeight();
listWindow.pack();
int h = listWindow.getHeight();
listWindow.setBounds(popX+5, popY, getWidth()-10, h);
listWindow.setVisible(true);
}
/**
* リストが選択されたときの処理
* @param e
*/
@Override
public void valueChanged(final ListSelectionEvent e) {
if (e.getValueIsAdjusting() || completionList.getModel().getSize() == 0) { return; }
final String completionString = (String) completionList.getSelectedValue();
if (completionString == null) { return; }
SwingUtilities.invokeLater(new Runnable(){
@Override
public void run() {
// リストが選択されたら，選択された文字を text field に挿入
// その間，completer には止まっていてもらう必要がある
completer.setUpdate(false);
setText(completionString);
completer.setUpdate(true);
}
});
}
/**
* フォーカスを取ったら補完ウインドウを出す
* @param e
*/
@Override
public void focusGained(FocusEvent e) {
completer.buildAndShowPopup();
}
/**
* フォーカスを失ったら補完ウインドウは消す
* @param e
*/
@Override
public void focusLost(FocusEvent e) {
listWindow.setVisible(false);
}
/**
* キー入力を監視
* リストが選択された状態でリターン：リストの文字をフィールドにセット
* 上キー：選択を上へ，下キー：選択を下へ
* @param e
*/
@Override
public void keyTyped(KeyEvent e) {
if (keyCode == KeyEvent.VK_ENTER) {
// リストが選択されている時の enter の処理
if (completionList.getSelectedIndex() != -1) {
completer.setUpdate(true);
completionList.getSelectionModel().clearSelection();
listWindow.setVisible(false);
e.consume();
} else {
// リストが選択されていないとき
addCompletion(getText());
}
}
}
@Override
public void keyPressed(KeyEvent e) {
keyCode = e.getKeyCode();
// リストが表示されているとき
if (listWindow.isVisible()) {
int size = completionListModel.getSize();
int selection = completionList.getSelectedIndex();
if (keyCode == KeyEvent.VK_UP) {
if (selection > 0) {
selection --;
completionList.getSelectionModel().setSelectionInterval(selection, selection);
}
e.consume();
} else if (keyCode == KeyEvent.VK_DOWN) {
if (selection < size - 1){
selection ++;
completionList.getSelectionModel().setSelectionInterval(selection, selection);
} else if (selection == -1) {
// ウインドウが表示されていて選択されていない状態
selection = 0;
completionList.getSelectionModel().setSelectionInterval(selection, selection);
}
e.consume();
}
}
}
@Override
public void keyReleased(KeyEvent e) {
e.consume();
}
// window が動いたら listWindow は消す
@Override
public void componentResized(ComponentEvent e) {
if (parentFrame == null) {
parentFrame = SwingUtilities.getWindowAncestor(this);
removeComponentListener(this);
parentFrame.addComponentListener(this);
}
listWindow.setVisible(false);
}
@Override
public void componentMoved(ComponentEvent e) {
listWindow.setVisible(false);
}
@Override
public void componentShown(ComponentEvent e) {
}
@Override
public void componentHidden(ComponentEvent e) {
listWindow.setVisible(false);
}
/**
* inner class does the matching of the JTextField's
* document to completion strings kept in an ArrayList
*/
private class Completer implements DocumentListener {
private boolean update = true;
private Pattern pattern;
private ArrayList<String> completions;
public Completer() {
completions = new ArrayList<String>();
}
public void addCompletion(String s) {
// 新しく追加したものが最初に来る
if (! completions.contains(s)) {
completions.add(0, s);
}
// 50項目まで保存
if (completions.size() > 50) {
completions.remove(50);
}
buildAndShowPopup();
}
public void removeCompletion(String s) {
completions.remove(s);
buildAndShowPopup();
}
public void clearCompletions() {
completions.clear();
buildPopup();
listWindow.setVisible(false);
}
public List<String> getCompletions() {
return completions;
}
public void setUpdate(boolean b) {
update = b;
}
private void buildPopup() {
completionListModel.clear();
//System.out.println("buildPopup for " + completions.size() + " completions");
//pattern = Pattern.compile(getText() + ".*");
pattern = Pattern.compile(getText() + ".+");
for(String completion: completions) {
Matcher matcher = pattern.matcher(completion);
if (matcher.matches()) {
//System.out.println("matched "+ completion);
completionListModel.add(completionListModel.getSize(), completion);
} else {
//System.out.println("pattern " + pattern.pattern() + " does not match " + completion);
}
}
}
private void showPopup() {
if (completionListModel.getSize() == 0) {
listWindow.setVisible(false);
return;
}
showListWindow();
}
private void buildAndShowPopup() {
if (! update) { return; }
if (getText().length() < 1) {
listWindow.setVisible(false);
return;
}
buildPopup();
showPopup();
}
// DocumentListener implementation
@Override
public void insertUpdate(DocumentEvent e) {
buildAndShowPopup();
}
@Override
public void removeUpdate(DocumentEvent e) {
buildAndShowPopup();
}
@Override
public void changedUpdate(DocumentEvent e) {
buildAndShowPopup();
}
}
public static void main(String[] argv) {
try {
UIManager.setLookAndFeel("ch.randelshofer.quaqua.QuaquaLookAndFeel");
} catch (ClassNotFoundException e) { System.out.println("Dolphin.java: " + e);
} catch (IllegalAccessException e) { System.out.println("Dolphin.java: " + e);
} catch (UnsupportedLookAndFeelException e) { System.out.println("Dolphin.java: " + e);
} catch (InstantiationException e) { System.out.println("Dolphin.java: " + e);}
JPanel panel = new JPanel();
panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
final CompletableJTextField completableField = new CompletableJTextField(75) {
@Override
protected void paintBorder(Graphics g) {
super.paintBorder(g);
Graphics2D g2d = (Graphics2D) g;
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.1f));
g2d.setColor(getBackground());
g2d.fillRect(5, 5, getWidth()-11, getHeight()-11);
}
};
// quaqua doesn't support textfield background color
completableField.setBackground(new Color(255,255,0));
panel.add(completableField);
JPanel bottom = new JPanel();
bottom.add(new JLabel("Completion:"));
final JTextField completionField = new JTextField(40);
completionField.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
completableField.addCompletion(completionField.getText());
completionField.setText("");
}
});
bottom.add(completionField);
JButton addButton = new JButton("Add");
addButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
completableField.addCompletion(completionField.getText());
completionField.setText("");
}
});
bottom.add(addButton);
panel.add(bottom);
JFrame f = new JFrame("HACK #47: Completions...");
//f.getContentPane().add(panel);
//f.pack();
f.setSize(800, 100);
f.setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
f.setVisible(true);
JOptionPane jop = new JOptionPane(
panel,
JOptionPane.PLAIN_MESSAGE,
JOptionPane.DEFAULT_OPTION,
null,
new String[]{"A", "B"}
);
MyJSheet sheet = MyJSheet.createDialog(jop, f);
sheet.setVisible(true);
Preferences prefs = Preferences.userNodeForPackage(CompletableJTextField.class);
completableField.setPreferences(prefs);
}
}