mdw@git.distorted.org.uk Git - sgt/puzzles/blob - PuzzleApplet.java

   1 /*
   2  * PuzzleApplet.java: NestedVM applet for the puzzle collection
   3  */
   4 import java.awt.*;
   5 import java.awt.event.*;
   6 import java.awt.image.BufferedImage;
   7 import java.util.*;
   8 import javax.swing.*;
   9 import javax.swing.border.BevelBorder;
  10 import javax.swing.Timer;
  11 import java.util.List;
  12
  13 import org.ibex.nestedvm.Runtime;
  14
  15 public class PuzzleApplet extends JApplet implements Runtime.CallJavaCB {
  16
  17     private static final long serialVersionUID = 1L;
  18
  19     private static final int CFG_SETTINGS = 0, CFG_SEED = 1, CFG_DESC = 2,
  20             LEFT_BUTTON = 0x0200, MIDDLE_BUTTON = 0x201, RIGHT_BUTTON = 0x202,
  21             LEFT_DRAG = 0x203, MIDDLE_DRAG = 0x204, RIGHT_DRAG = 0x205,
  22             LEFT_RELEASE = 0x206, CURSOR_UP = 0x209, CURSOR_DOWN = 0x20a,
  23             CURSOR_LEFT = 0x20b, CURSOR_RIGHT = 0x20c, MOD_CTRL = 0x1000,
  24             MOD_SHFT = 0x2000, MOD_NUM_KEYPAD = 0x4000, ALIGN_VCENTRE = 0x100,
  25             ALIGN_HCENTRE = 0x001, ALIGN_HRIGHT = 0x002, C_STRING = 0,
  26             C_CHOICES = 1, C_BOOLEAN = 2;
  27
  28     private JFrame mainWindow;
  29
  30     private JMenu typeMenu;
  31     private JMenuItem solveCommand;
  32     private Color[] colors;
  33     private JLabel statusBar;
  34     private PuzzlePanel pp;
  35     private Runtime runtime;
  36     private String[] puzzle_args;
  37     private Graphics2D  gg;
  38     private Timer timer;
  39     private int xarg1, xarg2, xarg3;
  40     private int[] xPoints, yPoints;
  41     private BufferedImage[] blitters = new BufferedImage[512];
  42     private ConfigDialog dlg;
  43
  44     static {
  45         try {
  46             UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
  47         } catch (Exception ex) {
  48             ex.printStackTrace();
  49         }
  50     }
  51
  52     public void init() {
  53         try {
  54             Container cp = getContentPane();
  55             cp.setLayout(new BorderLayout());
  56             runtime = (Runtime) Class.forName("PuzzleEngine").newInstance();
  57             runtime.setCallJavaCB(this);
  58             JMenuBar menubar = new JMenuBar();
  59             JMenu jm;
  60             menubar.add(jm = new JMenu("Game"));
  61             addMenuItemWithKey(jm, "New", 'n');
  62             addMenuItemCallback(jm, "Restart", "jcallback_restart_event");
  63             addMenuItemCallback(jm, "Specific...", "jcallback_config_event", CFG_DESC);
  64             addMenuItemCallback(jm, "Random Seed...", "jcallback_config_event", CFG_SEED);
  65             jm.addSeparator();
  66             addMenuItemWithKey(jm, "Undo", 'u');
  67             addMenuItemWithKey(jm, "Redo", 'r');
  68             jm.addSeparator();
  69             solveCommand = addMenuItemCallback(jm, "Solve", "jcallback_solve_event");
  70             solveCommand.setEnabled(false);
  71             if (mainWindow != null) {
  72                 jm.addSeparator();
  73                 addMenuItemWithKey(jm, "Exit", 'q');
  74             }
  75             menubar.add(typeMenu = new JMenu("Type"));
  76             typeMenu.setVisible(false);
  77             menubar.add(jm = new JMenu("Help"));
  78             addMenuItemCallback(jm, "About", "jcallback_about_event");
  79             setJMenuBar(menubar);
  80             cp.add(pp = new PuzzlePanel(), BorderLayout.CENTER);
  81             pp.addKeyListener(new KeyAdapter() {
  82                 public void keyPressed(KeyEvent e) {
  83                     int key = -1;
  84                     int shift = e.isShiftDown() ? MOD_SHFT : 0;
  85                     int ctrl = e.isControlDown() ? MOD_CTRL : 0;
  86                     switch (e.getKeyCode()) {
  87                     case KeyEvent.VK_LEFT:
  88                     case KeyEvent.VK_KP_LEFT:
  89                         key = shift | ctrl | CURSOR_LEFT;
  90                         break;
  91                     case KeyEvent.VK_RIGHT:
  92                     case KeyEvent.VK_KP_RIGHT:
  93                         key = shift | ctrl | CURSOR_RIGHT;
  94                         break;
  95                     case KeyEvent.VK_UP:
  96                     case KeyEvent.VK_KP_UP:
  97                         key = shift | ctrl | CURSOR_UP;
  98                         break;
  99                     case KeyEvent.VK_DOWN:
 100                     case KeyEvent.VK_KP_DOWN:
 101                         key = shift | ctrl | CURSOR_DOWN;
 102                         break;
 103                     case KeyEvent.VK_PAGE_UP:
 104                         key = shift | ctrl | MOD_NUM_KEYPAD | '9';
 105                         break;
 106                     case KeyEvent.VK_PAGE_DOWN:
 107                         key = shift | ctrl | MOD_NUM_KEYPAD | '3';
 108                         break;
 109                     case KeyEvent.VK_HOME:
 110                         key = shift | ctrl | MOD_NUM_KEYPAD | '7';
 111                         break;
 112                     case KeyEvent.VK_END:
 113                         key = shift | ctrl | MOD_NUM_KEYPAD | '1';
 114                         break;
 115                     default:
 116                         if (e.getKeyCode() >= KeyEvent.VK_NUMPAD0 && e.getKeyCode() <=KeyEvent.VK_NUMPAD9) {
 117                             key = MOD_NUM_KEYPAD | (e.getKeyCode() - KeyEvent.VK_NUMPAD0+'0');
 118                         }
 119                     break;
 120                     }
 121                     if (key != -1) {
 122                         runtimeCall("jcallback_key_event", new int[] {0, 0, key});
 123                     }
 124                 }
 125                 public void keyTyped(KeyEvent e) {
 126                     runtimeCall("jcallback_key_event", new int[] {0, 0, e.getKeyChar()});
 127                 }
 128             });
 129             pp.addMouseListener(new MouseAdapter() {
 130                 public void mouseReleased(MouseEvent e) {
 131                     mousePressedReleased(e, true);
 132                 }
 133                 public void mousePressed(MouseEvent e) {
 134                     pp.requestFocus();
 135                     mousePressedReleased(e, false);
 136                 }
 137                 private void mousePressedReleased(MouseEvent e, boolean released) {
 138                     int button;
 139                     if ((e.getModifiers() & (InputEvent.BUTTON2_MASK | InputEvent.SHIFT_MASK)) != 0)
 140                         button = MIDDLE_BUTTON;
 141                     else if ((e.getModifiers() & (InputEvent.BUTTON3_MASK | InputEvent.ALT_MASK)) != 0)
 142                         button = RIGHT_BUTTON;
 143                     else if ((e.getModifiers() & (InputEvent.BUTTON1_MASK)) != 0)
 144                         button = LEFT_BUTTON;
 145                     else
 146                         return;
 147                     if (released)
 148                         button += LEFT_RELEASE - LEFT_BUTTON;
 149                     runtimeCall("jcallback_key_event", new int[] {e.getX(), e.getY(), button});
 150                 }
 151             });
 152             pp.addMouseMotionListener(new MouseMotionAdapter() {
 153                 public void mouseDragged(MouseEvent e) {
 154                     int button;
 155                     if ((e.getModifiers() & (InputEvent.BUTTON2_MASK | InputEvent.SHIFT_MASK)) != 0)
 156                         button = MIDDLE_DRAG;
 157                     else if ((e.getModifiers() & (InputEvent.BUTTON3_MASK | InputEvent.ALT_MASK)) != 0)
 158                         button = RIGHT_DRAG;
 159                     else
 160                         button = LEFT_DRAG;
 161                     runtimeCall("jcallback_key_event", new int[] {e.getX(), e.getY(), button});
 162                 }
 163             });
 164             pp.addComponentListener(new ComponentAdapter() {
 165                 public void componentResized(ComponentEvent e) {
 166                     handleResized();
 167                 }
 168             });
 169             pp.setFocusable(true);
 170             pp.requestFocus();
 171             timer = new Timer(20, new ActionListener() {
 172                 public void actionPerformed(ActionEvent e) {
 173                     runtimeCall("jcallback_timer_func", new int[0]);
 174                 }
 175             });
 176             String gameid;
 177             try {
 178                 gameid = getParameter("game_id");
 179             } catch (java.lang.NullPointerException ex) {
 180                 gameid = null;
 181             }
 182             System.out.println("ooh " + gameid);
 183             if (gameid == null) {
 184                 puzzle_args = null;
 185             } else {
 186                 puzzle_args = new String[2];
 187                 puzzle_args[0] = "puzzle";
 188                 puzzle_args[1] = gameid;
 189             }
 190             SwingUtilities.invokeLater(new Runnable() {
 191                 public void run() {
 192                     runtime.start(puzzle_args);
 193                     runtime.execute();
 194                 }
 195             });
 196         } catch (Exception ex) {
 197             ex.printStackTrace();
 198         }
 199     }
 200
 201     public void destroy() {
 202         SwingUtilities.invokeLater(new Runnable() {
 203             public void run() {
 204                 runtime.execute();
 205                 if (mainWindow != null) {
 206                     mainWindow.dispose();
 207                     System.exit(0);
 208                 }
 209             }
 210         });
 211     }
 212
 213     protected void handleResized() {
 214         pp.createBackBuffer(pp.getWidth(), pp.getHeight(), colors[0]);
 215         runtimeCall("jcallback_resize", new int[] {pp.getWidth(), pp.getHeight()});
 216     }
 217
 218     private void addMenuItemWithKey(JMenu jm, String name, int key) {
 219         addMenuItemCallback(jm, name, "jcallback_menu_key_event", key);
 220     }
 221
 222     private JMenuItem addMenuItemCallback(JMenu jm, String name, final String callback, final int arg) {
 223         return addMenuItemCallback(jm, name, callback, new int[] {arg});
 224     }
 225
 226     private JMenuItem addMenuItemCallback(JMenu jm, String name, final String callback) {
 227         return addMenuItemCallback(jm, name, callback, new int[0]);
 228     }
 229
 230     private JMenuItem addMenuItemCallback(JMenu jm, String name, final String callback, final int[] args) {
 231         JMenuItem jmi;
 232         if (jm == typeMenu)
 233             typeMenu.add(jmi = new JCheckBoxMenuItem(name));
 234         else
 235         jm.add(jmi = new JMenuItem(name));
 236         jmi.addActionListener(new ActionListener() {
 237             public void actionPerformed(ActionEvent e) {
 238                 runtimeCall(callback, args);
 239             }
 240         });
 241         return jmi;
 242     }
 243
 244     protected void runtimeCall(String func, int[] args) {
 245         if (runtimeCallWithResult(func, args) == 42 && mainWindow != null) {
 246             destroy();
 247         }
 248     }
 249
 250     protected int runtimeCallWithResult(String func, int[] args) {
 251         try {
 252             return runtime.call(func, args);
 253         } catch (Runtime.CallException ex) {
 254             ex.printStackTrace();
 255             return 42;
 256         }
 257     }
 258
 259     private void buildConfigureMenuItem() {
 260         if (typeMenu.isVisible()) {
 261             typeMenu.addSeparator();
 262         } else {
 263             typeMenu.setVisible(true);
 264         }
 265         addMenuItemCallback(typeMenu, "Custom...", "jcallback_config_event", CFG_SETTINGS);
 266     }
 267
 268     private void addTypeItem(String name, final int ptrGameParams) {
 269         typeMenu.setVisible(true);
 270         addMenuItemCallback(typeMenu, name, "jcallback_preset_event", ptrGameParams);
 271     }
 272
 273     public int call(int cmd, int arg1, int arg2, int arg3) {
 274         try {
 275             switch(cmd) {
 276             case 0: // initialize
 277                 if (mainWindow != null) mainWindow.setTitle(runtime.cstring(arg1));
 278                 if ((arg2 & 1) != 0) buildConfigureMenuItem();
 279                 if ((arg2 & 2) != 0) addStatusBar();
 280                 if ((arg2 & 4) != 0) solveCommand.setEnabled(true);
 281                 colors = new Color[arg3];
 282                 return 0;
 283             case 1: // Type menu item
 284                 addTypeItem(runtime.cstring(arg1), arg2);
 285                 return 0;
 286             case 2: // MessageBox
 287                 JOptionPane.showMessageDialog(this, runtime.cstring(arg2), runtime.cstring(arg1), arg3 == 0 ? JOptionPane.INFORMATION_MESSAGE : JOptionPane.ERROR_MESSAGE);
 288                 return 0;
 289             case 3: // Resize
 290                 pp.setPreferredSize(new Dimension(arg1, arg2));
 291                 if (mainWindow != null) mainWindow.pack();
 292                 handleResized();
 293                 if (mainWindow != null) mainWindow.setVisible(true);
 294                 return 0;
 295             case 4: // drawing tasks
 296                 switch(arg1) {
 297                 case 0:
 298                     String text = runtime.cstring(arg2);
 299                     if (text.equals("")) text = " ";
 300                     System.out.println("status '" + text + "'");
 301                     statusBar.setText(text); break;
 302                 case 1:
 303                     gg = pp.backBuffer.createGraphics();
 304                     if (arg2 != 0 || arg3 != 0) {
 305                         gg.setColor(Color.black);
 306                         gg.fillRect(0, 0, arg2, getHeight());
 307                         gg.fillRect(0, 0, getWidth(), arg3);
 308                         gg.fillRect(getWidth() - arg2, 0, arg2, getHeight());
 309                         gg.fillRect(0, getHeight() - arg3, getWidth(), arg3);
 310                         gg.setClip(arg2, arg3, getWidth()-2*arg2, getHeight()-2*arg3);
 311                     }
 312                     break;
 313                 case 2: gg.dispose(); pp.repaint(); break;
 314                 case 3: gg.setClip(arg2, arg3, xarg1, xarg2); break;
 315                 case 4:
 316                     if (arg2 == 0 && arg3 == 0) {
 317                         gg.fillRect(0, 0, getWidth(), getHeight());
 318                     } else {
 319                         gg.setClip(arg2, arg3, getWidth()-2*arg2, getHeight()-2*arg3);
 320                     }
 321                     break;
 322                 case 5:
 323                     gg.setColor(colors[xarg3]);
 324                     gg.fillRect(arg2, arg3, xarg1, xarg2);
 325                     break;
 326                 case 6:
 327                     gg.setColor(colors[xarg3]);
 328                     gg.drawLine(arg2, arg3, xarg1, xarg2);
 329                     break;
 330                 case 7:
 331                     xPoints = new int[arg2];
 332                     yPoints = new int[arg2];
 333                     break;
 334                 case 8:
 335                     if (arg3 != -1) {
 336                         gg.setColor(colors[arg3]);
 337                         gg.fillPolygon(xPoints, yPoints, xPoints.length);
 338                     }
 339                     gg.setColor(colors[arg2]);
 340                     gg.drawPolygon(xPoints, yPoints, xPoints.length);
 341                     break;
 342                 case 9:
 343                     if (arg3 != -1) {
 344                         gg.setColor(colors[arg3]);
 345                         gg.fillOval(xarg1-xarg3, xarg2-xarg3, xarg3*2, xarg3*2);
 346                     }
 347                     gg.setColor(colors[arg2]);
 348                     gg.drawOval(xarg1-xarg3, xarg2-xarg3, xarg3*2, xarg3*2);
 349                     break;
 350                 case 10:
 351                     for(int i=0; i<blitters.length; i++) {
 352                         if (blitters[i] == null) {
 353                             blitters[i] = new BufferedImage(arg2, arg3, BufferedImage.TYPE_3BYTE_BGR);
 354                             return i;
 355                         }
 356                     }
 357                     throw new RuntimeException("No free blitter found!");
 358                 case 11: blitters[arg2] = null; break;
 359                 case 12:
 360                     timer.start(); break;
 361                 case 13:
 362                     timer.stop(); break;
 363                 }
 364                 return 0;
 365             case 5: // more arguments
 366                 xarg1 = arg1;
 367                 xarg2 = arg2;
 368                 xarg3 = arg3;
 369                 return 0;
 370             case 6: // polygon vertex
 371                 xPoints[arg1]=arg2;
 372                 yPoints[arg1]=arg3;
 373                 return 0;
 374             case 7: // string
 375                 gg.setColor(colors[arg2]);
 376                 {
 377                     String text = runtime.cstring(arg3);
 378                     Font ft = new Font((xarg3 & 0x10) != 0 ? "Monospaced" : "Dialog",
 379                             Font.PLAIN, 100);
 380                     int height100 = this.getFontMetrics(ft).getHeight();
 381                     ft = ft.deriveFont(arg1 * 100 / (float)height100);
 382                     FontMetrics fm = this.getFontMetrics(ft);
 383                     int asc = fm.getAscent(), desc = fm.getDescent();
 384                     if ((xarg3 & ALIGN_VCENTRE) != 0)
 385                         xarg2 += asc - (asc+desc)/2;
 386                     else
 387                         xarg2 += asc;
 388                     int wid = fm.stringWidth(text);
 389                     if ((xarg3 & ALIGN_HCENTRE) != 0)
 390                         xarg1 -= wid / 2;
 391                     else if ((xarg3 & ALIGN_HRIGHT) != 0)
 392                         xarg1 -= wid;
 393                     gg.setFont(ft);
 394                     gg.drawString(text, xarg1, xarg2);
 395                 }
 396                 return 0;
 397             case 8: // blitter_save
 398                 Graphics g2 = blitters[arg1].createGraphics();
 399                 g2.drawImage(pp.backBuffer, 0, 0, blitters[arg1].getWidth(), blitters[arg1].getHeight(),
 400                         arg2, arg3, arg2 + blitters[arg1].getWidth(), arg3 + blitters[arg1].getHeight(), this);
 401                 g2.dispose();
 402                 return 0;
 403             case 9: // blitter_load
 404                 gg.drawImage(blitters[arg1], arg2, arg3, this);
 405                 return 0;
 406             case 10: // dialog_init
 407                 dlg= new ConfigDialog(this, runtime.cstring(arg1));
 408                 return 0;
 409             case 11: // dialog_add_control
 410                 {
 411                     int sval_ptr = arg1;
 412                     int ival = arg2;
 413                     int ptr = xarg1;
 414                     int type=xarg2;
 415                     String name = runtime.cstring(xarg3);
 416                     switch(type) {
 417                     case C_STRING:
 418                         dlg.addTextBox(ptr, name, runtime.cstring(sval_ptr));
 419                         break;
 420                     case C_BOOLEAN:
 421                         dlg.addCheckBox(ptr, name, ival != 0);
 422                         break;
 423                     case C_CHOICES:
 424                         dlg.addComboBox(ptr, name, runtime.cstring(sval_ptr), ival);
 425                     }
 426                 }
 427                 return 0;
 428             case 12:
 429                 dlg.finish();
 430                 dlg = null;
 431                 return 0;
 432             case 13: // tick a menu item
 433                 if (arg1 < 0) arg1 = typeMenu.getItemCount() - 1;
 434                 for (int i = 0; i < typeMenu.getItemCount(); i++) {
 435                     if (typeMenu.getMenuComponent(i) instanceof JCheckBoxMenuItem) {
 436                         ((JCheckBoxMenuItem)typeMenu.getMenuComponent(i)).setSelected(arg1 == i);
 437                     }
 438                 }
 439                 return 0;
 440             default:
 441                 if (cmd >= 1024 && cmd < 2048) { // palette
 442                     colors[cmd-1024] = new Color(arg1, arg2, arg3);
 443                 }
 444             if (cmd == 1024) {
 445                 pp.setBackground(colors[0]);
 446                 if (statusBar != null) statusBar.setBackground(colors[0]);
 447                 this.setBackground(colors[0]);
 448             }
 449             return 0;
 450             }
 451         } catch (Throwable ex) {
 452             ex.printStackTrace();
 453             System.exit(-1);
 454             return 0;
 455         }
 456     }
 457
 458     private void addStatusBar() {
 459         statusBar = new JLabel("test");
 460         statusBar.setBorder(new BevelBorder(BevelBorder.LOWERED));
 461         getContentPane().add(BorderLayout.SOUTH,statusBar);
 462     }
 463
 464     // Standalone runner
 465     public static void main(String[] args) {
 466         final PuzzleApplet a = new PuzzleApplet();
 467         JFrame jf = new JFrame("Loading...");
 468         jf.getContentPane().setLayout(new BorderLayout());
 469         jf.getContentPane().add(a, BorderLayout.CENTER);
 470         a.mainWindow=jf;
 471         a.init();
 472         a.start();
 473         jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 474         jf.addWindowListener(new WindowAdapter() {
 475             public void windowClosing(WindowEvent e) {
 476                 a.stop();
 477                 a.destroy();
 478             }
 479         });
 480         jf.setVisible(true);
 481     }
 482
 483     public static class PuzzlePanel extends JPanel {
 484
 485         private static final long serialVersionUID = 1L;
 486         protected BufferedImage backBuffer;
 487
 488         public PuzzlePanel() {
 489             setPreferredSize(new Dimension(100,100));
 490             createBackBuffer(100,100, Color.black);
 491         }
 492
 493         public void createBackBuffer(int w, int h, Color bg) {
 494             if (w > 0 && h > 0) {
 495                 backBuffer = new BufferedImage(w,h, BufferedImage.TYPE_3BYTE_BGR);
 496                 Graphics g = backBuffer.createGraphics();
 497                 g.setColor(bg);
 498                 g.fillRect(0, 0, w, h);
 499                 g.dispose();
 500             }
 501         }
 502
 503         protected void paintComponent(Graphics g) {
 504             g.drawImage(backBuffer, 0, 0, this);
 505         }
 506     }
 507
 508     public static class ConfigComponent {
 509         public int type;
 510         public int configItemPointer;
 511         public JComponent component;
 512
 513         public ConfigComponent(int type, int configItemPointer, JComponent component) {
 514             this.type = type;
 515             this.configItemPointer = configItemPointer;
 516             this.component = component;
 517         }
 518     }
 519
 520     public class ConfigDialog extends JDialog {
 521
 522         private GridBagConstraints gbcLeft = new GridBagConstraints(
 523                 GridBagConstraints.RELATIVE, GridBagConstraints.RELATIVE, 1, 1,
 524                 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE,
 525                 new Insets(0, 0, 0, 0), 0, 0);
 526         private GridBagConstraints gbcRight = new GridBagConstraints(
 527                 GridBagConstraints.RELATIVE, GridBagConstraints.RELATIVE,
 528                 GridBagConstraints.REMAINDER, 1, 1.0, 0,
 529                 GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
 530                 new Insets(5, 5, 5, 5), 0, 0);
 531         private GridBagConstraints gbcBottom = new GridBagConstraints(
 532                 GridBagConstraints.RELATIVE, GridBagConstraints.RELATIVE,
 533                 GridBagConstraints.REMAINDER, GridBagConstraints.REMAINDER,
 534                 1.0, 1.0, GridBagConstraints.CENTER,
 535                 GridBagConstraints.HORIZONTAL, new Insets(5, 5, 5, 5), 0, 0);
 536
 537         private static final long serialVersionUID = 1L;
 538         private List components = new ArrayList();
 539
 540         public ConfigDialog(JApplet parent, String title) {
 541             super(JOptionPane.getFrameForComponent(parent), title, true);
 542             getContentPane().setLayout(new GridBagLayout());
 543         }
 544
 545         public void addTextBox(int ptr, String name, String value) {
 546             getContentPane().add(new JLabel(name), gbcLeft);
 547             JComponent c = new JTextField(value, 25);
 548             getContentPane().add(c, gbcRight);
 549             components.add(new ConfigComponent(C_STRING, ptr, c));
 550         }
 551
 552
 553         public void addCheckBox(int ptr, String name, boolean selected) {
 554             JComponent c = new JCheckBox(name, selected);
 555             getContentPane().add(c, gbcRight);
 556             components.add(new ConfigComponent(C_BOOLEAN, ptr, c));
 557         }
 558
 559         public void addComboBox(int ptr, String name, String values, int selected) {
 560             getContentPane().add(new JLabel(name), gbcLeft);
 561             StringTokenizer st = new StringTokenizer(values.substring(1), values.substring(0,1));
 562             JComboBox c = new JComboBox();
 563             c.setEditable(false);
 564             while(st.hasMoreTokens())
 565                 c.addItem(st.nextToken());
 566             c.setSelectedIndex(selected);
 567             getContentPane().add(c, gbcRight);
 568             components.add(new ConfigComponent(C_CHOICES, ptr, c));
 569         }
 570
 571         public void finish() {
 572             JPanel buttons = new JPanel(new GridLayout(1, 2, 5, 5));
 573             getContentPane().add(buttons, gbcBottom);
 574             JButton b;
 575             buttons.add(b=new JButton("OK"));
 576             b.addActionListener(new ActionListener() {
 577                 public void actionPerformed(ActionEvent e) {
 578                     save();
 579                     dispose();
 580                 }
 581             });
 582             getRootPane().setDefaultButton(b);
 583             buttons.add(b=new JButton("Cancel"));
 584             b.addActionListener(new ActionListener() {
 585                 public void actionPerformed(ActionEvent e) {
 586                     dispose();
 587                 }
 588             });
 589             setDefaultCloseOperation(DISPOSE_ON_CLOSE);
 590             pack();
 591             setLocationRelativeTo(null);
 592             setVisible(true);
 593         }
 594         private void save() {
 595             for (int i = 0; i < components.size(); i++) {
 596                 ConfigComponent cc = (ConfigComponent) components.get(i);
 597                 switch(cc.type) {
 598                 case C_STRING:
 599                     JTextField jtf = (JTextField)cc.component;
 600                     runtimeCall("jcallback_config_set_string", new int[] {cc.configItemPointer, runtime.strdup(jtf.getText())});
 601                     break;
 602                 case C_BOOLEAN:
 603                     JCheckBox jcb = (JCheckBox)cc.component;
 604                     runtimeCall("jcallback_config_set_boolean", new int[] {cc.configItemPointer, jcb.isSelected()?1:0});
 605                     break;
 606                 case C_CHOICES:
 607                     JComboBox jcm = (JComboBox)cc.component;
 608                     runtimeCall("jcallback_config_set_boolean", new int[] {cc.configItemPointer, jcm.getSelectedIndex()});
 609                     break;
 610                 }
 611             }
 612             runtimeCall("jcallback_config_ok", new int[0]);
 613         }
 614     }
 615 }