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 extern GtkWidget  *about;
  16 extern GtkWidget  *GUI_Window;
  17 extern GtkWidget  *GUI_Menubar;
  18 extern GtkWidget  *GUI_Timer;
  19 extern GtkWidget  *GUI_Buttonbar;
  20 extern GtkWidget  *GUI_Board;
  21
  22 extern char *programVersion;
  23 extern int errorExitStatus;
  24 extern int promotionUp;
  25 extern int fromX;
  26 extern int fromY;
  27 extern int toX;
  28 extern int toY;
  29 extern int squareSize,lineGap;
  30
  31 gboolean
  32 ExposeProc(object, user_data)
  33      GtkObject *object;
  34      gpointer user_data;
  35 {
  36   /* do resizing to a fixed aspect ratio */
  37   GtkRequisition w;
  38   int totalh=0,nw,nh;
  39   float ratio;
  40   int boardWidth,boardHeight,old,new;
  41
  42   nw=GTK_WIDGET(object)->allocation.width;
  43   nh=GTK_WIDGET(object)->allocation.height;
  44
  45   old=squareSize;
  46   squareSize  = nw/(BOARD_WIDTH*1.05+0.05);
  47
  48   if(old!=squareSize)
  49     {
  50       lineGap = squareSize*0.05;
  51
  52       boardWidth  = lineGap + BOARD_WIDTH  * (squareSize + lineGap);
  53       boardHeight = lineGap + BOARD_HEIGHT * (squareSize + lineGap);
  54
  55       /* get the height of the menus, etc. and calculate the aspect ratio */
  56       gtk_widget_size_request(GTK_WIDGET(GUI_Menubar),   &w);
  57       totalh += w.height;
  58       gtk_widget_size_request(GTK_WIDGET(GUI_Timer),   &w);
  59       totalh += w.height;
  60       gtk_widget_size_request(GTK_WIDGET(GUI_Buttonbar),   &w);
  61       totalh += w.height;
  62
  63       ratio  = (totalh+boardHeight)/(boardWidth) ;
  64
  65       gtk_widget_set_size_request(GTK_WIDGET(GUI_Board),
  66                                   boardWidth,boardHeight);
  67
  68       GUI_SetAspectRatio(ratio);
  69       /* recreate pieces with new size... TODO: keep svg in memory and just recreate pixmap instead of reloading files */
  70       CreatePieces();
  71     }
  72   return FALSE; /* return false, so that other expose events are called too */
  73 }
  74
  75 void
  76 QuitProc (object, user_data)
  77      GtkObject *object;
  78      gpointer user_data;
  79 {
  80   gtk_main_quit();
  81   ExitEvent(0);
  82 }
  83
  84 /* Help Menu */
  85 void InfoProc(object, user_data)
  86      GtkObject *object;
  87      gpointer user_data;
  88 {
  89     char buf[MSG_SIZ];
  90     snprintf(buf, sizeof(buf), "xterm -e info --directory %s --directory . -f %s &",
  91             INFODIR, INFOFILE);
  92     system(buf);
  93     return;
  94 }
  95
  96 void ManProc(object, user_data)
  97      GtkObject *object;
  98      gpointer user_data;
  99 {
 100     char buf[MSG_SIZ];
 101     snprintf(buf, sizeof(buf), "xterm -e man xboard &");
 102     system(buf);
 103     return;
 104 }
 105
 106 void HintProc(object, user_data)
 107      GtkObject *object;
 108      gpointer user_data;
 109 {
 110     HintEvent();
 111     return;
 112 }
 113
 114 void BookProc(object, user_data)
 115      GtkObject *object;
 116      gpointer user_data;
 117 {
 118     BookEvent();
 119     return;
 120 }
 121
 122 void AboutProc (object, user_data)
 123      GtkObject *object;
 124      gpointer user_data;
 125 {
 126   GtkWidget               *about;
 127
 128   const gchar *authors[] = {"Tim Mann <tim@tim-mann.org>",
 129                             "John Chanak",
 130                             "Evan Welsh <Evan.Welsh@msdw.com>",
 131                             "Elmar Bartel <bartel@informatik.tu-muenchen.de>",
 132                             "Jochen Wiedmann",
 133                             "Frank McIngvale",
 134                             "Hugh Fisher <Hugh.Fisher@cs.anu.edu.au>",
 135                             "Allessandro Scotti",
 136                             "H.G. Muller <h.g.muller AT hccnet DOT nl>",
 137                             "Eric Mullins <emwine AT earthlink DOT net>",
 138                             "Arun Persaud <arun@nubati.net>"};
 139
 140   /* set up about window */
 141   about =  GTK_WIDGET(gtk_about_dialog_new());
 142
 143   /* fill in some information */
 144   char buf[MSG_SIZ];
 145 #if ZIPPY
 146   char *zippy = " (with Zippy code)";
 147 #else
 148   char *zippy = "";
 149 #endif
 150   sprintf(buf, "%s%s",  programVersion, zippy);
 151
 152   gtk_about_dialog_set_version(GTK_ABOUT_DIALOG(about),buf);
 153
 154   gtk_about_dialog_set_copyright(GTK_ABOUT_DIALOG(about),
 155                                  "Copyright 1991 Digital Equipment Corporation\n"
 156                                  "Enhancements Copyright 1992-2009 Free Software Foundation\n"
 157                                  "Enhancements Copyright 2005 Alessandro Scotti");
 158   gtk_about_dialog_set_website(GTK_ABOUT_DIALOG(about),"http://www.gnu.org/software/xboard/");
 159   gtk_about_dialog_set_authors(GTK_ABOUT_DIALOG(about),authors);
 160   gtk_about_dialog_set_translator_credits(GTK_ABOUT_DIALOG(about),
 161                                           " A. Alper (turkish)\n"
 162                                           " A. Persaud (german)\n");
 163
 164   /* end set up about window */
 165   gtk_dialog_run(GTK_DIALOG (about));
 166   gtk_widget_destroy(about);
 167 }
 168
 169 /* End Help Menu */
 170
 171 void IcsClientProc(object, user_data)
 172      GtkObject *object;
 173      gpointer user_data;
 174 {
 175     IcsClientEvent();
 176     return;
 177 }
 178
 179 void LoadNextGameProc(object, user_data)
 180      GtkObject *object;
 181      gpointer user_data;
 182 {
 183     ReloadGame(1);
 184     return;
 185 }
 186
 187 void LoadPrevGameProc(object, user_data)
 188      GtkObject *object;
 189      gpointer user_data;
 190 {
 191     ReloadGame(-1);
 192     return;
 193 }
 194
 195 void ReloadGameProc(object, user_data)
 196      GtkObject *object;
 197      gpointer user_data;
 198 {
 199     ReloadGame(0);
 200     return;
 201 }
 202
 203 void MachineWhiteProc(object, user_data)
 204      GtkObject *object;
 205      gpointer user_data;
 206 {
 207     MachineWhiteEvent();
 208     return;
 209 }
 210
 211 void MachineBlackProc(object, user_data)
 212      GtkObject *object;
 213      gpointer user_data;
 214 {
 215     MachineBlackEvent();
 216     return;
 217 }
 218
 219 void TwoMachinesProc(object, user_data)
 220      GtkObject *object;
 221      gpointer user_data;
 222 {
 223     TwoMachinesEvent();
 224     return;
 225 }
 226
 227 void AcceptProc(object, user_data)
 228      GtkObject *object;
 229      gpointer user_data;
 230 {
 231     AcceptEvent();
 232     return;
 233 }
 234
 235 void DeclineProc(object, user_data)
 236      GtkObject *object;
 237      gpointer user_data;
 238 {
 239     DeclineEvent();
 240     return;
 241 }
 242
 243 void RematchProc(object, user_data)
 244      GtkObject *object;
 245      gpointer user_data;
 246 {
 247     RematchEvent();
 248     return;
 249 }
 250
 251 void CallFlagProc(object, user_data)
 252      GtkObject *object;
 253      gpointer user_data;
 254 {
 255     CallFlagEvent();
 256     return;
 257 }
 258
 259 void DrawProc(object, user_data)
 260      GtkObject *object;
 261      gpointer user_data;
 262 {
 263     DrawEvent();
 264     return;
 265 }
 266
 267 void AbortProc(object, user_data)
 268      GtkObject *object;
 269      gpointer user_data;
 270 {
 271     AbortEvent();
 272     return;
 273 }
 274
 275 void AdjournProc(object, user_data)
 276      GtkObject *object;
 277      gpointer user_data;
 278 {
 279     AdjournEvent();
 280     return;
 281 }
 282
 283 void ResignProc(object, user_data)
 284      GtkObject *object;
 285      gpointer user_data;
 286 {
 287     ResignEvent();
 288     return;
 289 }
 290
 291 void StopObservingProc(object, user_data)
 292      GtkObject *object;
 293      gpointer user_data;
 294 {
 295     StopObservingEvent();
 296     return;
 297 }
 298
 299 void StopExaminingProc(object, user_data)
 300      GtkObject *object;
 301      gpointer user_data;
 302 {
 303     StopExaminingEvent();
 304     return;
 305 }
 306
 307 void AdjuWhiteProc(object, user_data)
 308      GtkObject *object;
 309      gpointer user_data;
 310 {
 311     UserAdjudicationEvent(+1);
 312     return;
 313 }
 314
 315 void AdjuBlackProc(object, user_data)
 316      GtkObject *object;
 317      gpointer user_data;
 318 {
 319     UserAdjudicationEvent(-1);
 320     return;
 321 }
 322
 323 void AdjuDrawProc(object, user_data)
 324      GtkObject *object;
 325      gpointer user_data;
 326 {
 327     UserAdjudicationEvent(0);
 328     return;
 329 }
 330
 331 void BackwardProc(object, user_data)
 332      GtkObject *object;
 333      gpointer user_data;
 334 {
 335     BackwardEvent();
 336     return;
 337 }
 338
 339 void ForwardProc(object, user_data)
 340      GtkObject *object;
 341      gpointer user_data;
 342 {
 343     ForwardEvent();
 344     return;
 345 }
 346
 347 void ToStartProc(object, user_data)
 348      GtkObject *object;
 349      gpointer user_data;
 350 {
 351     ToStartEvent();
 352     return;
 353 }
 354
 355 void ToEndProc(object, user_data)
 356      GtkObject *object;
 357      gpointer user_data;
 358 {
 359     ToEndEvent();
 360     return;
 361 }
 362
 363 void RevertProc(object, user_data)
 364      GtkObject *object;
 365      gpointer user_data;
 366 {
 367     RevertEvent();
 368     return;
 369 }
 370
 371 void TruncateGameProc(object, user_data)
 372      GtkObject *object;
 373      gpointer user_data;
 374 {
 375     TruncateGameEvent();
 376     return;
 377 }
 378
 379 void MoveNowProc(object, user_data)
 380      GtkObject *object;
 381      gpointer user_data;
 382 {
 383     MoveNowEvent();
 384     return;
 385 }
 386
 387 void RetractMoveProc(object, user_data)
 388      GtkObject *object;
 389      gpointer user_data;
 390 {
 391     RetractMoveEvent();
 392     return;
 393 }
 394
 395 /* Option Menu */
 396 void ShowThinkingProc(object, user_data)
 397      GtkObject *object;
 398      gpointer user_data;
 399 {
 400     appData.showThinking = !appData.showThinking;
 401     ShowThinkingEvent();
 402
 403     return;
 404 }
 405
 406 void HideThinkingProc(object, user_data)
 407      GtkObject *object;
 408      gpointer user_data;
 409 {
 410     appData.hideThinkingFromHuman = !appData.hideThinkingFromHuman;
 411     ShowThinkingEvent();
 412
 413     return;
 414 }
 415
 416 void FlipViewProc(object, user_data)
 417      GtkObject *object;
 418      gpointer user_data;
 419 {
 420     flipView = !flipView;
 421     DrawPosition(True, NULL);
 422     return;
 423 }
 424
 425
 426 gboolean CloseWindowProc(GtkWidget *button)
 427 {
 428     gtk_widget_destroy(gtk_widget_get_toplevel(button));
 429     return TRUE;
 430 }
 431
 432 void
 433 ResetProc (object, user_data)
 434      GtkObject *object;
 435      gpointer user_data;
 436 {
 437   ResetGameEvent();
 438   AnalysisPopDown();
 439 }
 440
 441 void WhiteClockProc(object, user_data)
 442      GtkObject *object;
 443      gpointer user_data;
 444 {
 445     if (gameMode == EditPosition || gameMode == IcsExamining) {
 446         SetWhiteToPlayEvent();
 447     } else if (gameMode == IcsPlayingBlack || gameMode == MachinePlaysWhite) {
 448         CallFlagEvent();
 449     }
 450 }
 451
 452 void BlackClockProc(object, user_data)
 453      GtkObject *object;
 454      gpointer user_data;
 455 {
 456     if (gameMode == EditPosition || gameMode == IcsExamining) {
 457         SetBlackToPlayEvent();
 458     } else if (gameMode == IcsPlayingWhite || gameMode == MachinePlaysBlack) {
 459         CallFlagEvent();
 460     }
 461 }
 462
 463
 464 void ShowCoordsProc(object, user_data)
 465      GtkObject *object;
 466      gpointer user_data;
 467 {
 468     appData.showCoords = !appData.showCoords;
 469
 470     DrawPosition(True, NULL);
 471 }
 472
 473 void ErrorPopDownProc(object, user_data)
 474      GtkObject *object;
 475      gpointer user_data;
 476 {
 477   gtk_widget_destroy(GTK_WIDGET(object));
 478   ErrorPopDown();
 479 }
 480
 481 void PauseProc(object, user_data)
 482      GtkObject *object;
 483      gpointer user_data;
 484 {
 485     // todo this toggling of the pause button doesn't seem to work?
 486     // e.g. select pause from buttonbar doesn't activate menumode.pause
 487   PauseEvent();
 488 }
 489
 490
 491 void LoadGameProc(object, user_data)
 492      GtkObject *object;
 493      gpointer user_data;
 494 {
 495   GtkWidget *dialog;
 496   dialog = gtk_file_chooser_dialog_new (_("Load game file name?"),
 497                                         GTK_WINDOW(GUI_Window),
 498                                         GTK_FILE_CHOOSER_ACTION_OPEN,
 499                                         GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 500                                         GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
 501                                         NULL);
 502   if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)
 503     {
 504       char *filename;
 505       FILE *f;
 506
 507       filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
 508
 509       //see loadgamepopup
 510       f = fopen(filename, "rb");
 511       if (f == NULL)
 512         {
 513           DisplayError(_("Failed to open file"), errno);
 514         }
 515       else
 516         {
 517           /* TODO add indec */
 518           (void) LoadGamePopUp(f, 0, filename);
 519         }
 520       g_free (filename);
 521     };
 522
 523   gtk_widget_destroy (dialog);
 524   ModeHighlight();
 525
 526   return;
 527 }
 528
 529
 530 /*************
 531  * EVENTS
 532  *************/
 533
 534 void EventProc(window, event, data)
 535      GtkWindow *window;
 536      GdkEvent *event;
 537      gpointer data;
 538 {
 539   /* todo do we still need this?
 540     if (!XtIsRealized(widget))
 541       return;
 542   */
 543
 544     switch (event->type) {
 545       case GDK_EXPOSE:
 546         if (event->expose.count > 0) return;  /* no clipping is done */
 547         DrawPosition(True, NULL);
 548         break;
 549       default:
 550         return;
 551     }
 552 }
 553
 554
 555 /*
 556  * event handler for parsing user moves
 557  */
 558 void UserMoveProc(window, event, data)
 559      GtkWindow *window;
 560      GdkEvent *event;
 561      gpointer data;
 562 {
 563     int x, y;
 564     Boolean saveAnimate;
 565     static int second = 0;
 566
 567     if (errorExitStatus != -1) return;
 568
 569     if (event->type == GDK_BUTTON_PRESS) ErrorPopDown();
 570
 571     if (promotionUp)
 572       {
 573         if (event->type == GDK_BUTTON_PRESS)
 574           {
 575             /* todo add promotionshellwidget
 576                XtPopdown(promotionShell);
 577                XtDestroyWidget(promotionShell); */
 578             promotionUp = False;
 579             ClearHighlights();
 580             fromX = fromY = -1;
 581           }
 582         else
 583           {
 584             return;
 585           }
 586       }
 587
 588     x = EventToSquare( (int)event->button.x, BOARD_WIDTH  );
 589     y = EventToSquare( (int)event->button.y, BOARD_HEIGHT );
 590     if (!flipView && y >= 0)
 591       {
 592         y = BOARD_HEIGHT - 1 - y;
 593       }
 594     if (flipView && x >= 0)
 595       {
 596         x = BOARD_WIDTH - 1 - x;
 597       }
 598
 599     if (fromX == -1)
 600       {
 601         if (event->type == ButtonPress)
 602           {
 603             /* First square */
 604             if (OKToStartUserMove(x, y))
 605               {
 606                 fromX = x;
 607                 fromY = y;
 608                 second = 0;
 609                 DragPieceBegin(event->button.x, event->button.y);
 610                 if (appData.highlightDragging)
 611                   {
 612                     SetHighlights(x, y, -1, -1);
 613                   }
 614               }
 615           }
 616         return;
 617       }
 618
 619     /* fromX != -1 */
 620     if (event->type == GDK_BUTTON_PRESS && gameMode != EditPosition &&
 621         x >= 0 && y >= 0) {
 622         ChessSquare fromP;
 623         ChessSquare toP;
 624         /* Check if clicking again on the same color piece */
 625         fromP = boards[currentMove][fromY][fromX];
 626         toP = boards[currentMove][y][x];
 627         if ((WhitePawn <= fromP && fromP <= WhiteKing &&
 628              WhitePawn <= toP && toP <= WhiteKing) ||
 629             (BlackPawn <= fromP && fromP <= BlackKing &&
 630              BlackPawn <= toP && toP <= BlackKing)) {
 631             /* Clicked again on same color piece -- changed his mind */
 632             second = (x == fromX && y == fromY);
 633             if (appData.highlightDragging) {
 634                 SetHighlights(x, y, -1, -1);
 635             } else {
 636                 ClearHighlights();
 637             }
 638             if (OKToStartUserMove(x, y)) {
 639                 fromX = x;
 640                 fromY = y;
 641                 DragPieceBegin(event->button.x, event->button.y);
 642             }
 643             return;
 644         }
 645     }
 646
 647     if (event->type == GDK_BUTTON_RELEASE &&    x == fromX && y == fromY)
 648       {
 649         DragPieceEnd(event->button.x, event->button.y);
 650         if (appData.animateDragging)
 651           {
 652             /* Undo animation damage if any */
 653             DrawPosition(FALSE, NULL);
 654           }
 655         if (second)
 656           {
 657             /* Second up/down in same square; just abort move */
 658             second = 0;
 659             fromX = fromY = -1;
 660             ClearHighlights();
 661             gotPremove = 0;
 662             ClearPremoveHighlights();
 663           }
 664         else
 665           {
 666             /* First upclick in same square; start click-click mode */
 667             SetHighlights(x, y, -1, -1);
 668           }
 669         return;
 670       }
 671
 672     /* Completed move */
 673     toX = x;
 674     toY = y;
 675     saveAnimate = appData.animate;
 676
 677     if (event->type == GDK_BUTTON_PRESS)
 678       {
 679         /* Finish clickclick move */
 680         if (appData.animate || appData.highlightLastMove)
 681           {
 682             SetHighlights(fromX, fromY, toX, toY);
 683           }
 684         else
 685           {
 686             ClearHighlights();
 687           }
 688       }
 689     else
 690       {
 691         /* Finish drag move */
 692         if (appData.highlightLastMove)
 693           {
 694             SetHighlights(fromX, fromY, toX, toY);
 695           }
 696         else
 697           {
 698             ClearHighlights();
 699           }
 700         DragPieceEnd(event->button.x, event->button.y);
 701         /* Don't animate move and drag both */
 702         appData.animate = FALSE;
 703       }
 704
 705     if (IsPromotion(fromX, fromY, toX, toY))
 706       {
 707         if (appData.alwaysPromoteToQueen)
 708           {
 709             UserMoveEvent(fromX, fromY, toX, toY, 'q');
 710             if (!appData.highlightLastMove || gotPremove) ClearHighlights();
 711             if (gotPremove) SetPremoveHighlights(fromX, fromY, toX, toY);
 712             fromX = fromY = -1;
 713           }
 714         else
 715           {
 716             SetHighlights(fromX, fromY, toX, toY);
 717             PromotionPopUp();
 718           }
 719       }
 720     else
 721       {
 722         UserMoveEvent(fromX, fromY, toX, toY, NULLCHAR);
 723
 724         if (!appData.highlightLastMove || gotPremove) ClearHighlights();
 725         if (gotPremove) SetPremoveHighlights(fromX, fromY, toX, toY);
 726         fromX = fromY = -1;
 727       }
 728
 729     appData.animate = saveAnimate;
 730     if (appData.animate || appData.animateDragging) {
 731         /* Undo animation damage if needed */
 732         DrawPosition(FALSE, NULL);
 733     }
 734
 735     return;
 736 }
 737
 738 void GetMoveListProc(object, user_data)
 739      GtkObject *object;
 740      gpointer user_data;
 741 {
 742   appData.getMoveList = !appData.getMoveList;
 743
 744   if (appData.getMoveList)
 745     {
 746       GetMoveListEvent();
 747     }
 748
 749   // gets set automatically? if we set it with set_active we end up in an endless loop switching between 0 and 1
 750   //  gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (object),(gboolean) appData.getMoveList );
 751
 752   return;
 753 }