callback.c

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