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[] typeMenuItems;
  32     private int customMenuItemIndex;
  33
  34     private JMenuItem solveCommand;
  35     private Color[] colors;
  36     private JLabel statusBar;
  37     private PuzzlePanel pp;
  38     private Runtime runtime;
  39     private String[] puzzle_args;
  40     private Graphics2D  gg;
  41     private Timer timer;
  42     private int xarg1, xarg2, xarg3;
  43     private int[] xPoints, yPoints;
  44     private BufferedImage[] blitters = new BufferedImage[512];
  45     private ConfigDialog dlg;
  46
  47     static {
  48         try {
  49             UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
  50         } catch (Exception ex) {
  51             ex.printStackTrace();
  52         }
  53     }
  54
  55     public void init() {
  56         try {
  57             Container cp = getContentPane();
  58             cp.setLayout(new BorderLayout());
  59             runtime = (Runtime) Class.forName("PuzzleEngine").newInstance();
  60             runtime.setCallJavaCB(this);
  61             JMenuBar menubar = new JMenuBar();
  62             JMenu jm;
  63             menubar.add(jm = new JMenu("Game"));
  64             addMenuItemCallback(jm, "New", "jcallback_newgame_event");
  65             addMenuItemCallback(jm, "Restart", "jcallback_restart_event");
  66             addMenuItemCallback(jm, "Specific...", "jcallback_config_event", CFG_DESC);
  67             addMenuItemCallback(jm, "Random Seed...", "jcallback_config_event", CFG_SEED);
  68             jm.addSeparator();
  69             addMenuItemCallback(jm, "Undo", "jcallback_undo_event");
  70             addMenuItemCallback(jm, "Redo", "jcallback_redo_event");
  71             jm.addSeparator();
  72             solveCommand = addMenuItemCallback(jm, "Solve", "jcallback_solve_event");
  73             solveCommand.setEnabled(false);
  74             if (mainWindow != null) {
  75                 jm.addSeparator();
  76                 addMenuItemCallback(jm, "Exit", "jcallback_quit_event");
  77             }
  78             menubar.add(typeMenu = new JMenu("Type"));
  79             typeMenu.setVisible(false);
  80             menubar.add(jm = new JMenu("Help"));
  81             addMenuItemCallback(jm, "About", "jcallback_about_event");
  82             setJMenuBar(menubar);
  83             cp.add(pp = new PuzzlePanel(), BorderLayout.CENTER);
  84             pp.addKeyListener(new KeyAdapter() {
  85                 public void keyPressed(KeyEvent e) {
  86                     int key = -1;
  87                     int shift = e.isShiftDown() ? MOD_SHFT : 0;
  88                     int ctrl = e.isControlDown() ? MOD_CTRL : 0;
  89                     switch (e.getKeyCode()) {
  90                     case KeyEvent.VK_LEFT:
  91                     case KeyEvent.VK_KP_LEFT:
  92                         key = shift | ctrl | CURSOR_LEFT;
  93                         break;
  94                     case KeyEvent.VK_RIGHT:
  95                     case KeyEvent.VK_KP_RIGHT:
  96                         key = shift | ctrl | CURSOR_RIGHT;
  97                         break;
  98                     case KeyEvent.VK_UP:
  99                     case KeyEvent.VK_KP_UP:
 100                         key = shift | ctrl | CURSOR_UP;
 101                         break;
 102                     case KeyEvent.VK_DOWN:
 103                     case KeyEvent.VK_KP_DOWN:
 104                         key = shift | ctrl | CURSOR_DOWN;
 105                         break;
 106                     case KeyEvent.VK_PAGE_UP:
 107                         key = shift | ctrl | MOD_NUM_KEYPAD | '9';
 108                         break;
 109                     case KeyEvent.VK_PAGE_DOWN:
 110                         key = shift | ctrl | MOD_NUM_KEYPAD | '3';
 111                         break;
 112                     case KeyEvent.VK_HOME:
 113                         key = shift | ctrl | MOD_NUM_KEYPAD | '7';
 114                         break;
 115                     case KeyEvent.VK_END:
 116                         key = shift | ctrl | MOD_NUM_KEYPAD | '1';
 117                         break;
 118                     default:
 119                         if (e.getKeyCode() >= KeyEvent.VK_NUMPAD0 && e.getKeyCode() <=KeyEvent.VK_NUMPAD9) {
 120                             key = MOD_NUM_KEYPAD | (e.getKeyCode() - KeyEvent.VK_NUMPAD0+'0');
 121                         }
 122                     break;
 123                     }
 124                     if (key != -1) {
 125                         runtimeCall("jcallback_key_event", new int[] {0, 0, key});
 126                     }
 127                 }
 128                 public void keyTyped(KeyEvent e) {
 129                     runtimeCall("jcallback_key_event", new int[] {0, 0, e.getKeyChar()});
 130                 }
 131             });
 132             pp.addMouseListener(new MouseAdapter() {
 133                 public void mouseReleased(MouseEvent e) {
 134                     mousePressedReleased(e, true);
 135                 }
 136                 public void mousePressed(MouseEvent e) {
 137                     pp.requestFocus();
 138                     mousePressedReleased(e, false);
 139                 }
 140                 private void mousePressedReleased(MouseEvent e, boolean released) {
 141                     int button;
 142                     if ((e.getModifiers() & (InputEvent.BUTTON2_MASK | InputEvent.SHIFT_MASK)) != 0)
 143                         button = MIDDLE_BUTTON;
 144                     else if ((e.getModifiers() & (InputEvent.BUTTON3_MASK | InputEvent.ALT_MASK)) != 0)
 145                         button = RIGHT_BUTTON;
 146                     else if ((e.getModifiers() & (InputEvent.BUTTON1_MASK)) != 0)
 147                         button = LEFT_BUTTON;
 148                     else
 149                         return;
 150                     if (released)
 151                         button += LEFT_RELEASE - LEFT_BUTTON;
 152                     runtimeCall("jcallback_key_event", new int[] {e.getX(), e.getY(), button});
 153                 }
 154             });
 155             pp.addMouseMotionListener(new MouseMotionAdapter() {
 156                 public void mouseDragged(MouseEvent e) {
 157                     int button;
 158                     if ((e.getModifiers() & (InputEvent.BUTTON2_MASK | InputEvent.SHIFT_MASK)) != 0)
 159                         button = MIDDLE_DRAG;
 160                     else if ((e.getModifiers() & (InputEvent.BUTTON3_MASK | InputEvent.ALT_MASK)) != 0)
 161                         button = RIGHT_DRAG;
 162                     else
 163                         button = LEFT_DRAG;
 164                     runtimeCall("jcallback_key_event", new int[] {e.getX(), e.getY(), button});
 165                 }
 166             });
 167             pp.addComponentListener(new ComponentAdapter() {
 168                 public void componentResized(ComponentEvent e) {
 169                     handleResized();
 170                 }
 171             });
 172             pp.setFocusable(true);
 173             pp.requestFocus();
 174             timer = new Timer(20, new ActionListener() {
 175                 public void actionPerformed(ActionEvent e) {
 176                     runtimeCall("jcallback_timer_func", new int[0]);
 177                 }
 178             });
 179             String gameid;
 180             try {
 181                 gameid = getParameter("game_id");
 182             } catch (java.lang.NullPointerException ex) {
 183                 gameid = null;
 184             }
 185             if (gameid == null) {
 186                 puzzle_args = null;
 187             } else {
 188                 puzzle_args = new String[2];
 189                 puzzle_args[0] = "puzzle";
 190                 puzzle_args[1] = gameid;
 191             }
 192             SwingUtilities.invokeLater(new Runnable() {
 193                 public void run() {
 194                     runtime.start(puzzle_args);
 195                     runtime.execute();
 196                 }
 197             });
 198         } catch (Exception ex) {
 199             ex.printStackTrace();
 200         }
 201     }
 202
 203     public void destroy() {
 204         SwingUtilities.invokeLater(new Runnable() {
 205             public void run() {
 206                 runtime.execute();
 207                 if (mainWindow != null) {
 208                     mainWindow.dispose();
 209                     System.exit(0);
 210                 }
 211             }
 212         });
 213     }
 214
 215     protected void handleResized() {
 216         pp.createBackBuffer(pp.getWidth(), pp.getHeight(), colors[0]);
 217         runtimeCall("jcallback_resize", new int[] {pp.getWidth(), pp.getHeight()});
 218     }
 219
 220     private JMenuItem addMenuItemCallback(JMenu jm, String name, final String callback, final int arg) {
 221         return addMenuItemCallback(jm, name, callback, new int[] {arg}, false);
 222     }
 223
 224     private JMenuItem addMenuItemCallback(JMenu jm, String name, final String callback) {
 225         return addMenuItemCallback(jm, name, callback, new int[0], false);
 226     }
 227
 228     private JMenuItem addMenuItemCallback(JMenu jm, String name, final String callback, final int[] args, boolean checkbox) {
 229         JMenuItem jmi;
 230         if (checkbox)
 231             jm.add(jmi = new JCheckBoxMenuItem(name));
 232         else
 233         jm.add(jmi = new JMenuItem(name));
 234         jmi.addActionListener(new ActionListener() {
 235             public void actionPerformed(ActionEvent e) {
 236                 runtimeCall(callback, args);
 237             }
 238         });
 239         return jmi;
 240     }
 241
 242     protected void runtimeCall(String func, int[] args) {
 243         if (runtimeCallWithResult(func, args) == 42 && mainWindow != null) {
 244             destroy();
 245         }
 246     }
 247
 248     protected int runtimeCallWithResult(String func, int[] args) {
 249         try {
 250             return runtime.call(func, args);
 251         } catch (Runtime.CallException ex) {
 252             ex.printStackTrace();
 253             return 42;
 254         }
 255     }
 256
 257     private void buildConfigureMenuItem() {
 258         if (typeMenu.isVisible()) {
 259             typeMenu.addSeparator();
 260         } else {
 261             typeMenu.setVisible(true);
 262         }
 263         typeMenuItems[customMenuItemIndex] =
 264             addMenuItemCallback(typeMenu, "Custom...",
 265                                 "jcallback_config_event",
 266                                 new int[] {CFG_SETTINGS}, true);
 267     }
 268
 269     private void addTypeItem
 270         (JMenu targetMenu, String name, int newId, final int ptrGameParams) {
 271
 272         typeMenu.setVisible(true);
 273         typeMenuItems[newId] =
 274             addMenuItemCallback(targetMenu, name,
 275                                 "jcallback_preset_event",
 276                                 new int[] {ptrGameParams}, true);
 277     }
 278
 279     private void addTypeSubmenu
 280         (JMenu targetMenu, String name, int newId) {
 281
 282         JMenu newMenu = new JMenu(name);
 283         newMenu.setVisible(true);
 284         typeMenuItems[newId] = newMenu;
 285         targetMenu.add(newMenu);
 286     }
 287
 288     public int call(int cmd, int arg1, int arg2, int arg3) {
 289         try {
 290             switch(cmd) {
 291             case 0: // initialize
 292                 if (mainWindow != null) mainWindow.setTitle(runtime.cstring(arg1));
 293                 if ((arg2 & 1) != 0) buildConfigureMenuItem();
 294                 if ((arg2 & 2) != 0) addStatusBar();
 295                 if ((arg2 & 4) != 0) solveCommand.setEnabled(true);
 296                 colors = new Color[arg3];
 297                 return 0;
 298             case 1: // configure Type menu
 299                 if (arg1 == 0) {
 300                     // preliminary setup
 301                     typeMenuItems = new JMenuItem[arg2 + 2];
 302                     typeMenuItems[arg2] = typeMenu;
 303                     customMenuItemIndex = arg2 + 1;
 304                     return arg2;
 305                 } else if (xarg1 != 0) {
 306                     addTypeItem((JMenu)typeMenuItems[arg2],
 307                                 runtime.cstring(arg1), arg3, xarg1);
 308                 } else {
 309                     addTypeSubmenu((JMenu)typeMenuItems[arg2],
 310                                    runtime.cstring(arg1), arg3);
 311                 }
 312                 return 0;
 313             case 2: // MessageBox
 314                 JOptionPane.showMessageDialog(this, runtime.cstring(arg2), runtime.cstring(arg1), arg3 == 0 ? JOptionPane.INFORMATION_MESSAGE : JOptionPane.ERROR_MESSAGE);
 315                 return 0;
 316             case 3: // Resize
 317                 pp.setPreferredSize(new Dimension(arg1, arg2));
 318                 if (mainWindow != null) mainWindow.pack();
 319                 handleResized();
 320                 if (mainWindow != null) mainWindow.setVisible(true);
 321                 return 0;
 322             case 4: // drawing tasks
 323                 switch(arg1) {
 324                 case 0:
 325                     String text = runtime.cstring(arg2);
 326                     if (text.equals("")) text = " ";
 327                     statusBar.setText(text);
 328                     break;
 329                 case 1:
 330                     gg = pp.backBuffer.createGraphics();
 331                     if (arg2 != 0 || arg3 != 0 ||
 332                         arg2 + xarg2 != getWidth() ||
 333                         arg3 + xarg3 != getHeight()) {
 334                         int left = arg2, right = arg2 + xarg2;
 335                         int top = arg3, bottom = arg3 + xarg3;
 336                         int width = getWidth(), height = getHeight();
 337                         gg.setColor(colors != null ? colors[0] : Color.black);
 338                         gg.fillRect(0, 0, left, height);
 339                         gg.fillRect(right, 0, width-right, height);
 340                         gg.fillRect(0, 0, width, top);
 341                         gg.fillRect(0, bottom, width, height-bottom);
 342                         gg.setClip(left, top, right-left, bottom-top);
 343                     }
 344                     break;
 345                 case 2: gg.dispose(); pp.repaint(); break;
 346                 case 3: gg.setClip(arg2, arg3, xarg1, xarg2); break;
 347                 case 4:
 348                     if (arg2 == 0 && arg3 == 0) {
 349                         gg.setClip(0, 0, getWidth(), getHeight());
 350                     } else {
 351                         gg.setClip(arg2, arg3, getWidth()-2*arg2, getHeight()-2*arg3);
 352                     }
 353                     break;
 354                 case 5:
 355                     gg.setColor(colors[xarg3]);
 356                     gg.fillRect(arg2, arg3, xarg1, xarg2);
 357                     break;
 358                 case 6:
 359                     gg.setColor(colors[xarg3]);
 360                     gg.drawLine(arg2, arg3, xarg1, xarg2);
 361                     break;
 362                 case 7:
 363                     xPoints = new int[arg2];
 364                     yPoints = new int[arg2];
 365                     break;
 366                 case 8:
 367                     if (arg3 != -1) {
 368                         gg.setColor(colors[arg3]);
 369                         gg.fillPolygon(xPoints, yPoints, xPoints.length);
 370                     }
 371                     gg.setColor(colors[arg2]);
 372                     gg.drawPolygon(xPoints, yPoints, xPoints.length);
 373                     break;
 374                 case 9:
 375                     if (arg3 != -1) {
 376                         gg.setColor(colors[arg3]);
 377                         gg.fillOval(xarg1-xarg3, xarg2-xarg3, xarg3*2, xarg3*2);
 378                     }
 379                     gg.setColor(colors[arg2]);
 380                     gg.drawOval(xarg1-xarg3, xarg2-xarg3, xarg3*2, xarg3*2);
 381                     break;
 382                 case 10:
 383                     for(int i=0; i<blitters.length; i++) {
 384                         if (blitters[i] == null) {
 385                             blitters[i] = new BufferedImage(arg2, arg3, BufferedImage.TYPE_3BYTE_BGR);
 386                             return i;
 387                         }
 388                     }
 389                     throw new RuntimeException("No free blitter found!");
 390                 case 11: blitters[arg2] = null; break;
 391                 case 12:
 392                     timer.start(); break;
 393                 case 13:
 394                     timer.stop(); break;
 395                 }
 396                 return 0;
 397             case 5: // more arguments
 398                 xarg1 = arg1;
 399                 xarg2 = arg2;
 400                 xarg3 = arg3;
 401                 return 0;
 402             case 6: // polygon vertex
 403                 xPoints[arg1]=arg2;
 404                 yPoints[arg1]=arg3;
 405                 return 0;
 406             case 7: // string
 407                 gg.setColor(colors[arg2]);
 408                 {
 409                     String text = runtime.utfstring(arg3);
 410                     Font ft = new Font((xarg3 & 0x10) != 0 ? "Monospaced" : "Dialog",
 411                             Font.PLAIN, 100);
 412                     int height100 = this.getFontMetrics(ft).getHeight();
 413                     ft = ft.deriveFont(arg1 * 100 / (float)height100);
 414                     FontMetrics fm = this.getFontMetrics(ft);
 415                     int asc = fm.getAscent(), desc = fm.getDescent();
 416                     if ((xarg3 & ALIGN_VCENTRE) != 0)
 417                         xarg2 += asc - (asc+desc)/2;
 418                     int wid = fm.stringWidth(text);
 419                     if ((xarg3 & ALIGN_HCENTRE) != 0)
 420                         xarg1 -= wid / 2;
 421                     else if ((xarg3 & ALIGN_HRIGHT) != 0)
 422                         xarg1 -= wid;
 423                     gg.setFont(ft);
 424                     gg.drawString(text, xarg1, xarg2);
 425                 }
 426                 return 0;
 427             case 8: // blitter_save
 428                 Graphics g2 = blitters[arg1].createGraphics();
 429                 g2.drawImage(pp.backBuffer, 0, 0, blitters[arg1].getWidth(), blitters[arg1].getHeight(),
 430                         arg2, arg3, arg2 + blitters[arg1].getWidth(), arg3 + blitters[arg1].getHeight(), this);
 431                 g2.dispose();
 432                 return 0;
 433             case 9: // blitter_load
 434                 gg.drawImage(blitters[arg1], arg2, arg3, this);
 435                 return 0;
 436             case 10: // dialog_init
 437                 dlg= new ConfigDialog(this, runtime.cstring(arg1));
 438                 return 0;
 439             case 11: // dialog_add_control
 440                 {
 441                     int sval_ptr = arg1;
 442                     int ival = arg2;
 443                     int ptr = xarg1;
 444                     int type=xarg2;
 445                     String name = runtime.cstring(xarg3);
 446                     switch(type) {
 447                     case C_STRING:
 448                         dlg.addTextBox(ptr, name, runtime.cstring(sval_ptr));
 449                         break;
 450                     case C_BOOLEAN:
 451                         dlg.addCheckBox(ptr, name, ival != 0);
 452                         break;
 453                     case C_CHOICES:
 454                         dlg.addComboBox(ptr, name, runtime.cstring(sval_ptr), ival);
 455                     }
 456                 }
 457                 return 0;
 458             case 12:
 459                 dlg.finish();
 460                 dlg = null;
 461                 return 0;
 462             case 13: // tick a menu item
 463                 if (arg1 < 0) arg1 = customMenuItemIndex;
 464                 for (int i = 0; i < typeMenuItems.length; i++) {
 465                     if (typeMenuItems[i] instanceof JCheckBoxMenuItem) {
 466                         ((JCheckBoxMenuItem)typeMenuItems[i]).setSelected
 467                             (arg1 == i);
 468                     }
 469                 }
 470                 return 0;
 471             default:
 472                 if (cmd >= 1024 && cmd < 2048) { // palette
 473                     colors[cmd-1024] = new Color(arg1, arg2, arg3);
 474                 }
 475             if (cmd == 1024) {
 476                 pp.setBackground(colors[0]);
 477                 if (statusBar != null) statusBar.setBackground(colors[0]);
 478                 this.setBackground(colors[0]);
 479             }
 480             return 0;
 481             }
 482         } catch (Throwable ex) {
 483             ex.printStackTrace();
 484             System.exit(-1);
 485             return 0;
 486         }
 487     }
 488
 489     private void addStatusBar() {
 490         statusBar = new JLabel("test");
 491         statusBar.setBorder(new BevelBorder(BevelBorder.LOWERED));
 492         getContentPane().add(BorderLayout.SOUTH,statusBar);
 493     }
 494
 495     // Standalone runner
 496     public static void main(String[] args) {
 497         final PuzzleApplet a = new PuzzleApplet();
 498         JFrame jf = new JFrame("Loading...");
 499         jf.getContentPane().setLayout(new BorderLayout());
 500         jf.getContentPane().add(a, BorderLayout.CENTER);
 501         a.mainWindow=jf;
 502         a.init();
 503         a.start();
 504         jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 505         jf.addWindowListener(new WindowAdapter() {
 506             public void windowClosing(WindowEvent e) {
 507                 a.stop();
 508                 a.destroy();
 509             }
 510         });
 511         jf.setVisible(true);
 512     }
 513
 514     public static class PuzzlePanel extends JPanel {
 515
 516         private static final long serialVersionUID = 1L;
 517         protected BufferedImage backBuffer;
 518
 519         public PuzzlePanel() {
 520             setPreferredSize(new Dimension(100,100));
 521             createBackBuffer(100,100, Color.black);
 522         }
 523
 524         public void createBackBuffer(int w, int h, Color bg) {
 525             if (w > 0 && h > 0) {
 526                 backBuffer = new BufferedImage(w,h, BufferedImage.TYPE_3BYTE_BGR);
 527                 Graphics g = backBuffer.createGraphics();
 528                 g.setColor(bg);
 529                 g.fillRect(0, 0, w, h);
 530                 g.dispose();
 531             }
 532         }
 533
 534         protected void paintComponent(Graphics g) {
 535             g.drawImage(backBuffer, 0, 0, this);
 536         }
 537     }
 538
 539     public static class ConfigComponent {
 540         public int type;
 541         public int configItemPointer;
 542         public JComponent component;
 543
 544         public ConfigComponent(int type, int configItemPointer, JComponent component) {
 545             this.type = type;
 546             this.configItemPointer = configItemPointer;
 547             this.component = component;
 548         }
 549     }
 550
 551     public class ConfigDialog extends JDialog {
 552
 553         private GridBagConstraints gbcLeft = new GridBagConstraints(
 554                 GridBagConstraints.RELATIVE, GridBagConstraints.RELATIVE, 1, 1,
 555                 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE,
 556                 new Insets(0, 0, 0, 0), 0, 0);
 557         private GridBagConstraints gbcRight = new GridBagConstraints(
 558                 GridBagConstraints.RELATIVE, GridBagConstraints.RELATIVE,
 559                 GridBagConstraints.REMAINDER, 1, 1.0, 0,
 560                 GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
 561                 new Insets(5, 5, 5, 5), 0, 0);
 562         private GridBagConstraints gbcBottom = new GridBagConstraints(
 563                 GridBagConstraints.RELATIVE, GridBagConstraints.RELATIVE,
 564                 GridBagConstraints.REMAINDER, GridBagConstraints.REMAINDER,
 565                 1.0, 1.0, GridBagConstraints.CENTER,
 566                 GridBagConstraints.HORIZONTAL, new Insets(5, 5, 5, 5), 0, 0);
 567
 568         private static final long serialVersionUID = 1L;
 569         private List components = new ArrayList();
 570
 571         public ConfigDialog(JApplet parent, String title) {
 572             super(JOptionPane.getFrameForComponent(parent), title, true);
 573             getContentPane().setLayout(new GridBagLayout());
 574         }
 575
 576         public void addTextBox(int ptr, String name, String value) {
 577             getContentPane().add(new JLabel(name), gbcLeft);
 578             JComponent c = new JTextField(value, 25);
 579             getContentPane().add(c, gbcRight);
 580             components.add(new ConfigComponent(C_STRING, ptr, c));
 581         }
 582
 583
 584         public void addCheckBox(int ptr, String name, boolean selected) {
 585             JComponent c = new JCheckBox(name, selected);
 586             getContentPane().add(c, gbcRight);
 587             components.add(new ConfigComponent(C_BOOLEAN, ptr, c));
 588         }
 589
 590         public void addComboBox(int ptr, String name, String values, int selected) {
 591             getContentPane().add(new JLabel(name), gbcLeft);
 592             StringTokenizer st = new StringTokenizer(values.substring(1), values.substring(0,1));
 593             JComboBox c = new JComboBox();
 594             c.setEditable(false);
 595             while(st.hasMoreTokens())
 596                 c.addItem(st.nextToken());
 597             c.setSelectedIndex(selected);
 598             getContentPane().add(c, gbcRight);
 599             components.add(new ConfigComponent(C_CHOICES, ptr, c));
 600         }
 601
 602         public void finish() {
 603             JPanel buttons = new JPanel(new GridLayout(1, 2, 5, 5));
 604             getContentPane().add(buttons, gbcBottom);
 605             JButton b;
 606             buttons.add(b=new JButton("OK"));
 607             b.addActionListener(new ActionListener() {
 608                 public void actionPerformed(ActionEvent e) {
 609                     save();
 610                     dispose();
 611                 }
 612             });
 613             getRootPane().setDefaultButton(b);
 614             buttons.add(b=new JButton("Cancel"));
 615             b.addActionListener(new ActionListener() {
 616                 public void actionPerformed(ActionEvent e) {
 617                     dispose();
 618                 }
 619             });
 620             setDefaultCloseOperation(DISPOSE_ON_CLOSE);
 621             pack();
 622             setLocationRelativeTo(null);
 623             setVisible(true);
 624         }
 625         private void save() {
 626             for (int i = 0; i < components.size(); i++) {
 627                 ConfigComponent cc = (ConfigComponent) components.get(i);
 628                 switch(cc.type) {
 629                 case C_STRING:
 630                     JTextField jtf = (JTextField)cc.component;
 631                     runtimeCall("jcallback_config_set_string", new int[] {cc.configItemPointer, runtime.strdup(jtf.getText())});
 632                     break;
 633                 case C_BOOLEAN:
 634                     JCheckBox jcb = (JCheckBox)cc.component;
 635                     runtimeCall("jcallback_config_set_boolean", new int[] {cc.configItemPointer, jcb.isSelected()?1:0});
 636                     break;
 637                 case C_CHOICES:
 638                     JComboBox jcm = (JComboBox)cc.component;
 639                     runtimeCall("jcallback_config_set_choice", new int[] {cc.configItemPointer, jcm.getSelectedIndex()});
 640                     break;
 641                 }
 642             }
 643             runtimeCall("jcallback_config_ok", new int[0]);
 644         }
 645     }
 646 }