callback.c

   1 #include <gtk/gtk.h>
   2 #include "common.h"
   3 #include "xboard.h"
   4 #include <errno.h>
   5 #include "backend.h"
   6
   7 #ifdef ENABLE_NLS
   8 # define  _(s) gettext (s)
   9 # define N_(s) gettext_noop (s)
  10 #else
  11 # define  _(s) (s)
  12 # define N_(s)  s
  13 #endif
  14
  15
  16 extern GtkWidget  *about;
  17 extern GtkWidget  *GUI_Window;
  18
  19 extern char *programVersion;
  20 extern int errorExitStatus;
  21 extern int promotionUp;
  22 extern int fromX;
  23 extern int fromY;
  24 extern int toX;
  25 extern int toY;
  26
  27 void
  28 QuitProc (object, user_data)
  29      GtkObject *object;
  30      gpointer user_data;
  31 {
  32   gtk_main_quit();
  33   ExitEvent(0);
  34 }
  35
  36 /* Help Menu */
  37 void InfoProc(object, user_data)
  38      GtkObject *object;
  39      gpointer user_data;
  40 {
  41     char buf[MSG_SIZ];
  42     snprintf(buf, sizeof(buf), "xterm -e info --directory %s --directory . -f %s &",
  43             INFODIR, INFOFILE);
  44     system(buf);
  45     return;
  46 }
  47
  48 void ManProc(object, user_data)
  49      GtkObject *object;
  50      gpointer user_data;
  51 {
  52     char buf[MSG_SIZ];
  53     snprintf(buf, sizeof(buf), "xterm -e man xboard &");
  54     system(buf);
  55     return;
  56 }
  57
  58 void HintProc(object, user_data)
  59      GtkObject *object;
  60      gpointer user_data;
  61 {
  62     HintEvent();
  63     return;
  64 }
  65
  66 void BookProc(object, user_data)
  67      GtkObject *object;
  68      gpointer user_data;
  69 {
  70     BookEvent();
  71     return;
  72 }
  73
  74 void AboutProc (object, user_data)
  75      GtkObject *object;
  76      gpointer user_data;
  77 {
  78   GtkWidget               *about;
  79
  80   const gchar *authors[] = {"Tim Mann <tim@tim-mann.org>",
  81                             "John Chanak",
  82                             "Evan Welsh <Evan.Welsh@msdw.com>",
  83                             "Elmar Bartel <bartel@informatik.tu-muenchen.de>",
  84                             "Jochen Wiedmann",
  85                             "Frank McIngvale",
  86                             "Hugh Fisher <Hugh.Fisher@cs.anu.edu.au>",
  87                             "Allessandro Scotti",
  88                             "H.G. Muller <h.g.muller AT hccnet DOT nl>",
  89                             "Eric Mullins <emwine AT earthlink DOT net>",
  90                             "Arun Persaud <arun@nubati.net>"};
  91
  92   /* set up about window */
  93   about =  GTK_WIDGET(gtk_about_dialog_new());
  94
  95   /* fill in some information */
  96   char buf[MSG_SIZ];
  97 #if ZIPPY
  98   char *zippy = " (with Zippy code)";
  99 #else
 100   char *zippy = "";
 101 #endif
 102   sprintf(buf, "%s%s",  programVersion, zippy);
 103
 104   gtk_about_dialog_set_version(GTK_ABOUT_DIALOG(about),buf);
 105
 106   gtk_about_dialog_set_copyright(GTK_ABOUT_DIALOG(about),
 107                                  "Copyright 1991 Digital Equipment Corporation\n"
 108                                  "Enhancements Copyright 1992-2009 Free Software Foundation\n"
 109                                  "Enhancements Copyright 2005 Alessandro Scotti");
 110   gtk_about_dialog_set_website(GTK_ABOUT_DIALOG(about),"http://www.gnu.org/software/xboard/");
 111   gtk_about_dialog_set_authors(GTK_ABOUT_DIALOG(about),authors);
 112   gtk_about_dialog_set_translator_credits(GTK_ABOUT_DIALOG(about),
 113                                           " A. Alper (turkish)\n"
 114                                           " A. Persaud (german)\n");
 115
 116   /* end set up about window */
 117   gtk_dialog_run(GTK_DIALOG (about));
 118   gtk_widget_destroy(about);
 119 }
 120
 121 /* End Help Menu */
 122
 123 void IcsClientProc(object, user_data)
 124      GtkObject *object;
 125      gpointer user_data;
 126 {
 127     IcsClientEvent();
 128     return;
 129 }
 130
 131 void LoadNextGameProc(object, user_data)
 132      GtkObject *object;
 133      gpointer user_data;
 134 {
 135     ReloadGame(1);
 136     return;
 137 }
 138
 139 void LoadPrevGameProc(object, user_data)
 140      GtkObject *object;
 141      gpointer user_data;
 142 {
 143     ReloadGame(-1);
 144     return;
 145 }
 146
 147 void ReloadGameProc(object, user_data)
 148      GtkObject *object;
 149      gpointer user_data;
 150 {
 151     ReloadGame(0);
 152     return;
 153 }
 154
 155 void MachineWhiteProc(object, user_data)
 156      GtkObject *object;
 157      gpointer user_data;
 158 {
 159     MachineWhiteEvent();
 160     return;
 161 }
 162
 163 void MachineBlackProc(object, user_data)
 164      GtkObject *object;
 165      gpointer user_data;
 166 {
 167     MachineBlackEvent();
 168     return;
 169 }
 170
 171 void TwoMachinesProc(object, user_data)
 172      GtkObject *object;
 173      gpointer user_data;
 174 {
 175     TwoMachinesEvent();
 176     return;
 177 }
 178
 179 void AcceptProc(object, user_data)
 180      GtkObject *object;
 181      gpointer user_data;
 182 {
 183     AcceptEvent();
 184     return;
 185 }
 186
 187 void DeclineProc(object, user_data)
 188      GtkObject *object;
 189      gpointer user_data;
 190 {
 191     DeclineEvent();
 192     return;
 193 }
 194
 195 void RematchProc(object, user_data)
 196      GtkObject *object;
 197      gpointer user_data;
 198 {
 199     RematchEvent();
 200     return;
 201 }
 202
 203 void CallFlagProc(object, user_data)
 204      GtkObject *object;
 205      gpointer user_data;
 206 {
 207     CallFlagEvent();
 208     return;
 209 }
 210
 211 void DrawProc(object, user_data)
 212      GtkObject *object;
 213      gpointer user_data;
 214 {
 215     DrawEvent();
 216     return;
 217 }
 218
 219 void AbortProc(object, user_data)
 220      GtkObject *object;
 221      gpointer user_data;
 222 {
 223     AbortEvent();
 224     return;
 225 }
 226
 227 void AdjournProc(object, user_data)
 228      GtkObject *object;
 229      gpointer user_data;
 230 {
 231     AdjournEvent();
 232     return;
 233 }
 234
 235 void ResignProc(object, user_data)
 236      GtkObject *object;
 237      gpointer user_data;
 238 {
 239     ResignEvent();
 240     return;
 241 }
 242
 243 void StopObservingProc(object, user_data)
 244      GtkObject *object;
 245      gpointer user_data;
 246 {
 247     StopObservingEvent();
 248     return;
 249 }
 250
 251 void StopExaminingProc(object, user_data)
 252      GtkObject *object;
 253      gpointer user_data;
 254 {
 255     StopExaminingEvent();
 256     return;
 257 }
 258
 259 void AdjuWhiteProc(object, user_data)
 260      GtkObject *object;
 261      gpointer user_data;
 262 {
 263     UserAdjudicationEvent(+1);
 264     return;
 265 }
 266
 267 void AdjuBlackProc(object, user_data)
 268      GtkObject *object;
 269      gpointer user_data;
 270 {
 271     UserAdjudicationEvent(-1);
 272     return;
 273 }
 274
 275 void AdjuDrawProc(object, user_data)
 276      GtkObject *object;
 277      gpointer user_data;
 278 {
 279     UserAdjudicationEvent(0);
 280     return;
 281 }
 282
 283 void BackwardProc(object, user_data)
 284      GtkObject *object;
 285      gpointer user_data;
 286 {
 287     BackwardEvent();
 288     return;
 289 }
 290
 291 void ForwardProc(object, user_data)
 292      GtkObject *object;
 293      gpointer user_data;
 294 {
 295     ForwardEvent();
 296     return;
 297 }
 298
 299 void ToStartProc(object, user_data)
 300      GtkObject *object;
 301      gpointer user_data;
 302 {
 303     ToStartEvent();
 304     return;
 305 }
 306
 307 void ToEndProc(object, user_data)
 308      GtkObject *object;
 309      gpointer user_data;
 310 {
 311     ToEndEvent();
 312     return;
 313 }
 314
 315 void RevertProc(object, user_data)
 316      GtkObject *object;
 317      gpointer user_data;
 318 {
 319     RevertEvent();
 320     return;
 321 }
 322
 323 void TruncateGameProc(object, user_data)
 324      GtkObject *object;
 325      gpointer user_data;
 326 {
 327     TruncateGameEvent();
 328     return;
 329 }
 330
 331 void MoveNowProc(object, user_data)
 332      GtkObject *object;
 333      gpointer user_data;
 334 {
 335     MoveNowEvent();
 336     return;
 337 }
 338
 339 void RetractMoveProc(object, user_data)
 340      GtkObject *object;
 341      gpointer user_data;
 342 {
 343     RetractMoveEvent();
 344     return;
 345 }
 346
 347 /* Option Menu */
 348 void FlipViewProc(object, user_data)
 349      GtkObject *object;
 350      gpointer user_data;
 351 {
 352     flipView = !flipView;
 353     DrawPosition(True, NULL);
 354     return;
 355 }
 356
 357
 358 gboolean CloseWindowProc(GtkWidget *button)
 359 {
 360     gtk_widget_destroy(gtk_widget_get_toplevel(button));
 361     return TRUE;
 362 }
 363
 364 void
 365 ResetProc (object, user_data)
 366      GtkObject *object;
 367      gpointer user_data;
 368 {
 369   ResetGameEvent();
 370   AnalysisPopDown();
 371 }
 372
 373 void WhiteClockProc(object, user_data)
 374      GtkObject *object;
 375      gpointer user_data;
 376 {
 377     if (gameMode == EditPosition || gameMode == IcsExamining) {
 378         SetWhiteToPlayEvent();
 379     } else if (gameMode == IcsPlayingBlack || gameMode == MachinePlaysWhite) {
 380         CallFlagEvent();
 381     }
 382 }
 383
 384 void BlackClockProc(object, user_data)
 385      GtkObject *object;
 386      gpointer user_data;
 387 {
 388     if (gameMode == EditPosition || gameMode == IcsExamining) {
 389         SetBlackToPlayEvent();
 390     } else if (gameMode == IcsPlayingWhite || gameMode == MachinePlaysBlack) {
 391         CallFlagEvent();
 392     }
 393 }
 394
 395
 396 void ShowCoordsProc(object, user_data)
 397      GtkObject *object;
 398      gpointer user_data;
 399 {
 400     appData.showCoords = !appData.showCoords;
 401
 402     DrawPosition(True, NULL);
 403 }
 404
 405 void ErrorPopDownProc(object, user_data)
 406      GtkObject *object;
 407      gpointer user_data;
 408 {
 409   gtk_widget_destroy(GTK_WIDGET(object));
 410   ErrorPopDown();
 411 }
 412
 413 void PauseProc(object, user_data)
 414      GtkObject *object;
 415      gpointer user_data;
 416 {
 417     // todo this toggling of the pause button doesn't seem to work?
 418     // e.g. select pause from buttonbar doesn't activate menumode.pause
 419   PauseEvent();
 420 }
 421
 422
 423 void LoadGameProc(object, user_data)
 424      GtkObject *object;
 425      gpointer user_data;
 426 {
 427   GtkWidget *dialog;
 428   dialog = gtk_file_chooser_dialog_new (_("Load game file name?"),
 429                                         GTK_WINDOW(GUI_Window),
 430                                         GTK_FILE_CHOOSER_ACTION_OPEN,
 431                                         GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 432                                         GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
 433                                         NULL);
 434   if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)
 435     {
 436       char *filename;
 437       FILE *f;
 438
 439       filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
 440
 441       //see loadgamepopup
 442       f = fopen(filename, "rb");
 443       if (f == NULL)
 444         {
 445           DisplayError(_("Failed to open file"), errno);
 446         }
 447       else
 448         {
 449           /* TODO add indec */
 450           (void) LoadGamePopUp(f, 0, filename);
 451         }
 452       g_free (filename);
 453     };
 454
 455   gtk_widget_destroy (dialog);
 456   ModeHighlight();
 457
 458   return;
 459 }
 460
 461
 462 /*************
 463  * EVENTS
 464  *************/
 465
 466 void EventProc(window, event, data)
 467      GtkWindow *window;
 468      GdkEvent *event;
 469      gpointer data;
 470 {
 471   /* todo do we still need this?
 472     if (!XtIsRealized(widget))
 473       return;
 474   */
 475
 476     switch (event->type) {
 477       case GDK_EXPOSE:
 478         if (event->expose.count > 0) return;  /* no clipping is done */
 479         DrawPosition(True, NULL);
 480         break;
 481       default:
 482         return;
 483     }
 484 }
 485
 486
 487 /*
 488  * event handler for parsing user moves
 489  */
 490 void UserMoveProc(window, event, data)
 491      GtkWindow *window;
 492      GdkEvent *event;
 493      gpointer data;
 494 {
 495     int x, y;
 496     Boolean saveAnimate;
 497     static int second = 0;
 498
 499     if (errorExitStatus != -1) return;
 500
 501     if (event->type == GDK_BUTTON_PRESS) ErrorPopDown();
 502
 503     if (promotionUp)
 504       {
 505         if (event->type == GDK_BUTTON_PRESS)
 506           {
 507             /* todo add promotionshellwidget
 508                XtPopdown(promotionShell);
 509                XtDestroyWidget(promotionShell); */
 510             promotionUp = False;
 511             ClearHighlights();
 512             fromX = fromY = -1;
 513           }
 514         else
 515           {
 516             return;
 517           }
 518       }
 519
 520     x = EventToSquare( (int)event->button.x, BOARD_WIDTH  );
 521     y = EventToSquare( (int)event->button.y, BOARD_HEIGHT );
 522     if (!flipView && y >= 0)
 523       {
 524         y = BOARD_HEIGHT - 1 - y;
 525       }
 526     if (flipView && x >= 0)
 527       {
 528         x = BOARD_WIDTH - 1 - x;
 529       }
 530
 531     if (fromX == -1)
 532       {
 533         if (event->type == ButtonPress)
 534           {
 535             /* First square */
 536             if (OKToStartUserMove(x, y))
 537               {
 538                 fromX = x;
 539                 fromY = y;
 540                 second = 0;
 541                 DragPieceBegin(event->button.x, event->button.y);
 542                 if (appData.highlightDragging)
 543                   {
 544                     SetHighlights(x, y, -1, -1);
 545                   }
 546               }
 547           }
 548         return;
 549       }
 550
 551     /* fromX != -1 */
 552     if (event->type == GDK_BUTTON_PRESS && gameMode != EditPosition &&
 553         x >= 0 && y >= 0) {
 554         ChessSquare fromP;
 555         ChessSquare toP;
 556         /* Check if clicking again on the same color piece */
 557         fromP = boards[currentMove][fromY][fromX];
 558         toP = boards[currentMove][y][x];
 559         if ((WhitePawn <= fromP && fromP <= WhiteKing &&
 560              WhitePawn <= toP && toP <= WhiteKing) ||
 561             (BlackPawn <= fromP && fromP <= BlackKing &&
 562              BlackPawn <= toP && toP <= BlackKing)) {
 563             /* Clicked again on same color piece -- changed his mind */
 564             second = (x == fromX && y == fromY);
 565             if (appData.highlightDragging) {
 566                 SetHighlights(x, y, -1, -1);
 567             } else {
 568                 ClearHighlights();
 569             }
 570             if (OKToStartUserMove(x, y)) {
 571                 fromX = x;
 572                 fromY = y;
 573                 DragPieceBegin(event->button.x, event->button.y);
 574             }
 575             return;
 576         }
 577     }
 578
 579     if (event->type == GDK_BUTTON_RELEASE &&    x == fromX && y == fromY)
 580       {
 581         DragPieceEnd(event->button.x, event->button.y);
 582         if (appData.animateDragging)
 583           {
 584             /* Undo animation damage if any */
 585             DrawPosition(FALSE, NULL);
 586           }
 587         if (second)
 588           {
 589             /* Second up/down in same square; just abort move */
 590             second = 0;
 591             fromX = fromY = -1;
 592             ClearHighlights();
 593             gotPremove = 0;
 594             ClearPremoveHighlights();
 595           }
 596         else
 597           {
 598             /* First upclick in same square; start click-click mode */
 599             SetHighlights(x, y, -1, -1);
 600           }
 601         return;
 602       }
 603
 604     /* Completed move */
 605     toX = x;
 606     toY = y;
 607     saveAnimate = appData.animate;
 608
 609     if (event->type == GDK_BUTTON_PRESS)
 610       {
 611         /* Finish clickclick move */
 612         if (appData.animate || appData.highlightLastMove)
 613           {
 614             SetHighlights(fromX, fromY, toX, toY);
 615           }
 616         else
 617           {
 618             ClearHighlights();
 619           }
 620       }
 621     else
 622       {
 623         /* Finish drag move */
 624         if (appData.highlightLastMove)
 625           {
 626             SetHighlights(fromX, fromY, toX, toY);
 627           }
 628         else
 629           {
 630             ClearHighlights();
 631           }
 632         DragPieceEnd(event->button.x, event->button.y);
 633         /* Don't animate move and drag both */
 634         appData.animate = FALSE;
 635       }
 636
 637     if (IsPromotion(fromX, fromY, toX, toY))
 638       {
 639         if (appData.alwaysPromoteToQueen)
 640           {
 641             UserMoveEvent(fromX, fromY, toX, toY, 'q');
 642             if (!appData.highlightLastMove || gotPremove) ClearHighlights();
 643             if (gotPremove) SetPremoveHighlights(fromX, fromY, toX, toY);
 644             fromX = fromY = -1;
 645           }
 646         else
 647           {
 648             SetHighlights(fromX, fromY, toX, toY);
 649             PromotionPopUp();
 650           }
 651       }
 652     else
 653       {
 654         UserMoveEvent(fromX, fromY, toX, toY, NULLCHAR);
 655
 656         if (!appData.highlightLastMove || gotPremove) ClearHighlights();
 657         if (gotPremove) SetPremoveHighlights(fromX, fromY, toX, toY);
 658         fromX = fromY = -1;
 659       }
 660
 661     appData.animate = saveAnimate;
 662     if (appData.animate || appData.animateDragging) {
 663         /* Undo animation damage if needed */
 664         DrawPosition(FALSE, NULL);
 665     }
 666
 667     return;
 668 }
 669
 670 void GetMoveListProc(object, user_data)
 671      GtkObject *object;
 672      gpointer user_data;
 673 {
 674   appData.getMoveList = !appData.getMoveList;
 675
 676   if (appData.getMoveList)
 677     {
 678       GetMoveListEvent();
 679     }
 680
 681   // gets set automatically? if we set it with set_active we end up in an endless loop switching between 0 and 1
 682   //  gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (object),(gboolean) appData.getMoveList );
 683
 684   return;
 685 }