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 /*
 180  * File menu
 181  */
 182
 183 void LoadNextGameProc(object, user_data)
 184      GtkObject *object;
 185      gpointer user_data;
 186 {
 187     ReloadGame(1);
 188     return;
 189 }
 190
 191 void LoadPrevGameProc(object, user_data)
 192      GtkObject *object;
 193      gpointer user_data;
 194 {
 195     ReloadGame(-1);
 196     return;
 197 }
 198
 199 void ReloadGameProc(object, user_data)
 200      GtkObject *object;
 201      gpointer user_data;
 202 {
 203     ReloadGame(0);
 204     return;
 205 }
 206
 207
 208 void LoadNextPositionProc(object, user_data)
 209      GtkObject *object;
 210      gpointer user_data;
 211 {
 212     ReloadPosition(1);
 213     return;
 214 }
 215
 216 void LoadPrevPositionProc(object, user_data)
 217      GtkObject *object;
 218      gpointer user_data;
 219 {
 220     ReloadPosition(-1);
 221     return;
 222 }
 223
 224 void ReloadPositionProc(object, user_data)
 225      GtkObject *object;
 226      gpointer user_data;
 227 {
 228     ReloadPosition(0);
 229     return;
 230 }
 231
 232
 233 /* End File Menu */
 234
 235 void MachineWhiteProc(object, user_data)
 236      GtkObject *object;
 237      gpointer user_data;
 238 {
 239     MachineWhiteEvent();
 240     return;
 241 }
 242
 243 void MachineBlackProc(object, user_data)
 244      GtkObject *object;
 245      gpointer user_data;
 246 {
 247     MachineBlackEvent();
 248     return;
 249 }
 250
 251 void TwoMachinesProc(object, user_data)
 252      GtkObject *object;
 253      gpointer user_data;
 254 {
 255     TwoMachinesEvent();
 256     return;
 257 }
 258
 259 void AcceptProc(object, user_data)
 260      GtkObject *object;
 261      gpointer user_data;
 262 {
 263     AcceptEvent();
 264     return;
 265 }
 266
 267 void DeclineProc(object, user_data)
 268      GtkObject *object;
 269      gpointer user_data;
 270 {
 271     DeclineEvent();
 272     return;
 273 }
 274
 275 void RematchProc(object, user_data)
 276      GtkObject *object;
 277      gpointer user_data;
 278 {
 279     RematchEvent();
 280     return;
 281 }
 282
 283 void CallFlagProc(object, user_data)
 284      GtkObject *object;
 285      gpointer user_data;
 286 {
 287     CallFlagEvent();
 288     return;
 289 }
 290
 291 void DrawProc(object, user_data)
 292      GtkObject *object;
 293      gpointer user_data;
 294 {
 295     DrawEvent();
 296     return;
 297 }
 298
 299 void AbortProc(object, user_data)
 300      GtkObject *object;
 301      gpointer user_data;
 302 {
 303     AbortEvent();
 304     return;
 305 }
 306
 307 void AdjournProc(object, user_data)
 308      GtkObject *object;
 309      gpointer user_data;
 310 {
 311     AdjournEvent();
 312     return;
 313 }
 314
 315 void ResignProc(object, user_data)
 316      GtkObject *object;
 317      gpointer user_data;
 318 {
 319     ResignEvent();
 320     return;
 321 }
 322
 323 void StopObservingProc(object, user_data)
 324      GtkObject *object;
 325      gpointer user_data;
 326 {
 327     StopObservingEvent();
 328     return;
 329 }
 330
 331 void StopExaminingProc(object, user_data)
 332      GtkObject *object;
 333      gpointer user_data;
 334 {
 335     StopExaminingEvent();
 336     return;
 337 }
 338
 339 void AdjuWhiteProc(object, user_data)
 340      GtkObject *object;
 341      gpointer user_data;
 342 {
 343     UserAdjudicationEvent(+1);
 344     return;
 345 }
 346
 347 void AdjuBlackProc(object, user_data)
 348      GtkObject *object;
 349      gpointer user_data;
 350 {
 351     UserAdjudicationEvent(-1);
 352     return;
 353 }
 354
 355 void AdjuDrawProc(object, user_data)
 356      GtkObject *object;
 357      gpointer user_data;
 358 {
 359     UserAdjudicationEvent(0);
 360     return;
 361 }
 362
 363 void BackwardProc(object, user_data)
 364      GtkObject *object;
 365      gpointer user_data;
 366 {
 367     BackwardEvent();
 368     return;
 369 }
 370
 371 void ForwardProc(object, user_data)
 372      GtkObject *object;
 373      gpointer user_data;
 374 {
 375     ForwardEvent();
 376     return;
 377 }
 378
 379 void ToStartProc(object, user_data)
 380      GtkObject *object;
 381      gpointer user_data;
 382 {
 383     ToStartEvent();
 384     return;
 385 }
 386
 387 void ToEndProc(object, user_data)
 388      GtkObject *object;
 389      gpointer user_data;
 390 {
 391     ToEndEvent();
 392     return;
 393 }
 394
 395 void RevertProc(object, user_data)
 396      GtkObject *object;
 397      gpointer user_data;
 398 {
 399     RevertEvent();
 400     return;
 401 }
 402
 403 void TruncateGameProc(object, user_data)
 404      GtkObject *object;
 405      gpointer user_data;
 406 {
 407     TruncateGameEvent();
 408     return;
 409 }
 410
 411 void MoveNowProc(object, user_data)
 412      GtkObject *object;
 413      gpointer user_data;
 414 {
 415     MoveNowEvent();
 416     return;
 417 }
 418
 419 void RetractMoveProc(object, user_data)
 420      GtkObject *object;
 421      gpointer user_data;
 422 {
 423     RetractMoveEvent();
 424     return;
 425 }
 426
 427 /* Option Menu */
 428 void ShowThinkingProc(object, user_data)
 429      GtkObject *object;
 430      gpointer user_data;
 431 {
 432     appData.showThinking = !appData.showThinking;
 433     ShowThinkingEvent();
 434
 435     return;
 436 }
 437
 438 void HideThinkingProc(object, user_data)
 439      GtkObject *object;
 440      gpointer user_data;
 441 {
 442     appData.hideThinkingFromHuman = !appData.hideThinkingFromHuman;
 443     ShowThinkingEvent();
 444
 445     return;
 446 }
 447
 448 void FlipViewProc(object, user_data)
 449      GtkObject *object;
 450      gpointer user_data;
 451 {
 452     flipView = !flipView;
 453     DrawPosition(True, NULL);
 454     return;
 455 }
 456
 457
 458 gboolean CloseWindowProc(GtkWidget *button)
 459 {
 460     gtk_widget_destroy(gtk_widget_get_toplevel(button));
 461     return TRUE;
 462 }
 463
 464 void
 465 ResetProc (object, user_data)
 466      GtkObject *object;
 467      gpointer user_data;
 468 {
 469   ResetGameEvent();
 470   AnalysisPopDown();
 471 }
 472
 473 void WhiteClockProc(object, user_data)
 474      GtkObject *object;
 475      gpointer user_data;
 476 {
 477     if (gameMode == EditPosition || gameMode == IcsExamining) {
 478         SetWhiteToPlayEvent();
 479     } else if (gameMode == IcsPlayingBlack || gameMode == MachinePlaysWhite) {
 480         CallFlagEvent();
 481     }
 482 }
 483
 484 void BlackClockProc(object, user_data)
 485      GtkObject *object;
 486      gpointer user_data;
 487 {
 488     if (gameMode == EditPosition || gameMode == IcsExamining) {
 489         SetBlackToPlayEvent();
 490     } else if (gameMode == IcsPlayingWhite || gameMode == MachinePlaysBlack) {
 491         CallFlagEvent();
 492     }
 493 }
 494
 495
 496 void ShowCoordsProc(object, user_data)
 497      GtkObject *object;
 498      gpointer user_data;
 499 {
 500     appData.showCoords = !appData.showCoords;
 501
 502     DrawPosition(True, NULL);
 503 }
 504
 505 void ErrorPopDownProc(object, user_data)
 506      GtkObject *object;
 507      gpointer user_data;
 508 {
 509   gtk_widget_destroy(GTK_WIDGET(object));
 510   ErrorPopDown();
 511 }
 512
 513 void PauseProc(object, user_data)
 514      GtkObject *object;
 515      gpointer user_data;
 516 {
 517     // todo this toggling of the pause button doesn't seem to work?
 518     // e.g. select pause from buttonbar doesn't activate menumode.pause
 519   PauseEvent();
 520 }
 521
 522
 523 void LoadGameProc(object, user_data)
 524      GtkObject *object;
 525      gpointer user_data;
 526 {
 527   GtkWidget *dialog;
 528   dialog = gtk_file_chooser_dialog_new (_("Load game file name?"),
 529                                         GTK_WINDOW(GUI_Window),
 530                                         GTK_FILE_CHOOSER_ACTION_OPEN,
 531                                         GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 532                                         GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
 533                                         NULL);
 534   if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)
 535     {
 536       char *filename;
 537       FILE *f;
 538
 539       filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
 540
 541       //see loadgamepopup
 542       f = fopen(filename, "rb");
 543       if (f == NULL)
 544         {
 545           DisplayError(_("Failed to open file"), errno);
 546         }
 547       else
 548         {
 549           /* TODO add indec */
 550           (void) LoadGamePopUp(f, 0, filename);
 551         }
 552       g_free (filename);
 553     };
 554
 555   gtk_widget_destroy (dialog);
 556   ModeHighlight();
 557
 558   return;
 559 }
 560
 561
 562 /*************
 563  * EVENTS
 564  *************/
 565
 566 void EventProc(window, event, data)
 567      GtkWindow *window;
 568      GdkEvent *event;
 569      gpointer data;
 570 {
 571   /* todo do we still need this?
 572     if (!XtIsRealized(widget))
 573       return;
 574   */
 575
 576     switch (event->type) {
 577       case GDK_EXPOSE:
 578         if (event->expose.count > 0) return;  /* no clipping is done */
 579         DrawPosition(True, NULL);
 580         break;
 581       default:
 582         return;
 583     }
 584 }
 585
 586
 587 /*
 588  * event handler for parsing user moves
 589  */
 590 void UserMoveProc(window, event, data)
 591      GtkWindow *window;
 592      GdkEvent *event;
 593      gpointer data;
 594 {
 595     int x, y;
 596     Boolean saveAnimate;
 597     static int second = 0;
 598
 599     if (errorExitStatus != -1) return;
 600
 601     if (event->type == GDK_BUTTON_PRESS) ErrorPopDown();
 602
 603     if (promotionUp)
 604       {
 605         if (event->type == GDK_BUTTON_PRESS)
 606           {
 607             /* todo add promotionshellwidget
 608                XtPopdown(promotionShell);
 609                XtDestroyWidget(promotionShell); */
 610             promotionUp = False;
 611             ClearHighlights();
 612             fromX = fromY = -1;
 613           }
 614         else
 615           {
 616             return;
 617           }
 618       }
 619
 620     x = EventToSquare( (int)event->button.x, BOARD_WIDTH  );
 621     y = EventToSquare( (int)event->button.y, BOARD_HEIGHT );
 622     if (!flipView && y >= 0)
 623       {
 624         y = BOARD_HEIGHT - 1 - y;
 625       }
 626     if (flipView && x >= 0)
 627       {
 628         x = BOARD_WIDTH - 1 - x;
 629       }
 630
 631     if (fromX == -1)
 632       {
 633         if (event->type == ButtonPress)
 634           {
 635             /* First square */
 636             if (OKToStartUserMove(x, y))
 637               {
 638                 fromX = x;
 639                 fromY = y;
 640                 second = 0;
 641                 DragPieceBegin(event->button.x, event->button.y);
 642                 if (appData.highlightDragging)
 643                   {
 644                     SetHighlights(x, y, -1, -1);
 645                   }
 646               }
 647           }
 648         return;
 649       }
 650
 651     /* fromX != -1 */
 652     if (event->type == GDK_BUTTON_PRESS && gameMode != EditPosition &&
 653         x >= 0 && y >= 0) {
 654         ChessSquare fromP;
 655         ChessSquare toP;
 656         /* Check if clicking again on the same color piece */
 657         fromP = boards[currentMove][fromY][fromX];
 658         toP = boards[currentMove][y][x];
 659         if ((WhitePawn <= fromP && fromP <= WhiteKing &&
 660              WhitePawn <= toP && toP <= WhiteKing) ||
 661             (BlackPawn <= fromP && fromP <= BlackKing &&
 662              BlackPawn <= toP && toP <= BlackKing)) {
 663             /* Clicked again on same color piece -- changed his mind */
 664             second = (x == fromX && y == fromY);
 665             if (appData.highlightDragging) {
 666                 SetHighlights(x, y, -1, -1);
 667             } else {
 668                 ClearHighlights();
 669             }
 670             if (OKToStartUserMove(x, y)) {
 671                 fromX = x;
 672                 fromY = y;
 673                 DragPieceBegin(event->button.x, event->button.y);
 674             }
 675             return;
 676         }
 677     }
 678
 679     if (event->type == GDK_BUTTON_RELEASE &&    x == fromX && y == fromY)
 680       {
 681         DragPieceEnd(event->button.x, event->button.y);
 682         if (appData.animateDragging)
 683           {
 684             /* Undo animation damage if any */
 685             DrawPosition(FALSE, NULL);
 686           }
 687         if (second)
 688           {
 689             /* Second up/down in same square; just abort move */
 690             second = 0;
 691             fromX = fromY = -1;
 692             ClearHighlights();
 693             gotPremove = 0;
 694             ClearPremoveHighlights();
 695           }
 696         else
 697           {
 698             /* First upclick in same square; start click-click mode */
 699             SetHighlights(x, y, -1, -1);
 700           }
 701         return;
 702       }
 703
 704     /* Completed move */
 705     toX = x;
 706     toY = y;
 707     saveAnimate = appData.animate;
 708
 709     if (event->type == GDK_BUTTON_PRESS)
 710       {
 711         /* Finish clickclick move */
 712         if (appData.animate || appData.highlightLastMove)
 713           {
 714             SetHighlights(fromX, fromY, toX, toY);
 715           }
 716         else
 717           {
 718             ClearHighlights();
 719           }
 720       }
 721     else
 722       {
 723         /* Finish drag move */
 724         if (appData.highlightLastMove)
 725           {
 726             SetHighlights(fromX, fromY, toX, toY);
 727           }
 728         else
 729           {
 730             ClearHighlights();
 731           }
 732         DragPieceEnd(event->button.x, event->button.y);
 733         /* Don't animate move and drag both */
 734         appData.animate = FALSE;
 735       }
 736
 737     if (IsPromotion(fromX, fromY, toX, toY))
 738       {
 739         if (appData.alwaysPromoteToQueen)
 740           {
 741             UserMoveEvent(fromX, fromY, toX, toY, 'q');
 742             if (!appData.highlightLastMove || gotPremove) ClearHighlights();
 743             if (gotPremove) SetPremoveHighlights(fromX, fromY, toX, toY);
 744             fromX = fromY = -1;
 745           }
 746         else
 747           {
 748             SetHighlights(fromX, fromY, toX, toY);
 749             PromotionPopUp();
 750           }
 751       }
 752     else
 753       {
 754         UserMoveEvent(fromX, fromY, toX, toY, NULLCHAR);
 755
 756         if (!appData.highlightLastMove || gotPremove) ClearHighlights();
 757         if (gotPremove) SetPremoveHighlights(fromX, fromY, toX, toY);
 758         fromX = fromY = -1;
 759       }
 760
 761     appData.animate = saveAnimate;
 762     if (appData.animate || appData.animateDragging) {
 763         /* Undo animation damage if needed */
 764         DrawPosition(FALSE, NULL);
 765     }
 766
 767     return;
 768 }
 769
 770 void GetMoveListProc(object, user_data)
 771      GtkObject *object;
 772      gpointer user_data;
 773 {
 774   appData.getMoveList = !appData.getMoveList;
 775
 776   if (appData.getMoveList)
 777     {
 778       GetMoveListEvent();
 779     }
 780
 781   // gets set automatically? if we set it with set_active we end up in an endless loop switching between 0 and 1
 782   //  gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (object),(gboolean) appData.getMoveList );
 783
 784   return;
 785 }