contrib/gdb/gdb/tui/tuiLayout.c

   1 /*
   2 ** tuiLayout.c
   3 ** This module contains procedures for handling the layout of the windows.
   4 */
   5
   6
   7 #include "defs.h"
   8 #include "command.h"
   9 #include "symtab.h"
  10 #include "frame.h"
  11
  12 #include "tui.h"
  13 #include "tuiData.h"
  14 #include "tuiGeneralWin.h"
  15 #include "tuiStack.h"
  16 #include "tuiRegs.h"
  17 #include "tuiDisassem.h"
  18
  19 /*******************************
  20 ** Static Local Decls
  21 ********************************/
  22
  23 static void _initGenWinInfo PARAMS
  24   ((TuiGenWinInfoPtr, TuiWinType, int, int, int, int));
  25 static void _initAndMakeWin PARAMS
  26   ((Opaque *, TuiWinType, int, int, int, int, int));
  27 static void _showSourceOrDisassemAndCommand PARAMS
  28   ((TuiLayoutType));
  29 static void _makeSourceOrDisassemWindow PARAMS
  30   ((TuiWinInfoPtr *, TuiWinType, int, int));
  31 static void _makeCommandWindow PARAMS ((TuiWinInfoPtr *, int, int));
  32 static void _makeSourceWindow PARAMS ((TuiWinInfoPtr *, int, int));
  33 static void _makeDisassemWindow PARAMS
  34   ((TuiWinInfoPtr *, int, int));
  35 static void _makeDataWindow PARAMS ((TuiWinInfoPtr *, int, int));
  36 static void _showSourceCommand PARAMS ((void));
  37 static void _showDisassemCommand PARAMS ((void));
  38 static void _showSourceDisassemCommand PARAMS ((void));
  39 static void _showData PARAMS ((TuiLayoutType));
  40 static TuiLayoutType _nextLayout PARAMS ((void));
  41 static TuiLayoutType _prevLayout PARAMS ((void));
  42 static void _tuiLayout_command PARAMS ((char *, int));
  43 static void _tuiToggleLayout_command PARAMS ((char *, int));
  44 static void _tui_vToggleLayout_command PARAMS ((va_list));
  45 static void _tuiToggleSplitLayout_command PARAMS ((char *, int));
  46 static void _tui_vToggleSplitLayout_command PARAMS ((va_list));
  47 static Opaque _extractDisplayStartAddr PARAMS ((void));
  48 static void _tuiHandleXDBLayout PARAMS ((TuiLayoutDefPtr));
  49 static TuiStatus _tuiSetLayoutTo PARAMS ((char *));
  50
  51
  52 /***************************************
  53 ** DEFINITIONS
  54 ***************************************/
  55
  56 #define LAYOUT_USAGE     "Usage: layout prev | next | <layout_name> \n"
  57
  58 /***************************************
  59 ** Static Local Data
  60 ***************************************/
  61 static TuiLayoutType lastLayout = UNDEFINED_LAYOUT;
  62
  63 /***************************************
  64 ** PUBLIC FUNCTIONS
  65 ***************************************/
  66
  67 /*
  68 ** showLayout().
  69 **        Show the screen layout defined
  70 */
  71 void
  72 #ifdef __STDC__
  73 showLayout (
  74              TuiLayoutType layout)
  75 #else
  76 showLayout (layout)
  77      TuiLayoutType layout;
  78 #endif
  79 {
  80   TuiLayoutType curLayout = currentLayout ();
  81
  82   if (layout != curLayout)
  83     {
  84       /*
  85         ** Since the new layout may cause changes in window size, we
  86         ** should free the content and reallocate on next display of
  87         ** source/asm
  88         */
  89       tuiClearAllSourceWinsContent (NO_EMPTY_SOURCE_PROMPT);
  90       freeAllSourceWinsContent ();
  91       clearSourceWindows ();
  92       if (layout == SRC_DATA_COMMAND || layout == DISASSEM_DATA_COMMAND)
  93         {
  94           _showData (layout);
  95           refreshAll (winList);
  96         }
  97       else
  98         {
  99           /* First make the current layout be invisible */
 100           m_allBeInvisible ();
 101           m_beInvisible (locatorWinInfoPtr ());
 102
 103           switch (layout)
 104             {
 105               /* Now show the new layout */
 106             case SRC_COMMAND:
 107               _showSourceCommand ();
 108               addToSourceWindows (srcWin);
 109               break;
 110             case DISASSEM_COMMAND:
 111               _showDisassemCommand ();
 112               addToSourceWindows (disassemWin);
 113               break;
 114             case SRC_DISASSEM_COMMAND:
 115               _showSourceDisassemCommand ();
 116               addToSourceWindows (srcWin);
 117               addToSourceWindows (disassemWin);
 118               break;
 119             default:
 120               break;
 121             }
 122         }
 123     }
 124
 125   return;
 126 }                               /* showLayout */
 127
 128
 129 /*
 130 ** tuiSetLayout()
 131 **    Function to set the layout to SRC_COMMAND, DISASSEM_COMMAND,
 132 **    SRC_DISASSEM_COMMAND, SRC_DATA_COMMAND, or DISASSEM_DATA_COMMAND.
 133 **    If the layout is SRC_DATA_COMMAND, DISASSEM_DATA_COMMAND, or
 134 **    UNDEFINED_LAYOUT, then the data window is populated according
 135 **    to regsDisplayType.
 136 */
 137 TuiStatus
 138 #ifdef __STDC__
 139 tuiSetLayout (
 140                TuiLayoutType layoutType,
 141                TuiRegisterDisplayType regsDisplayType)
 142 #else
 143 tuiSetLayout (layoutType, regsDisplayType)
 144      TuiLayoutType layoutType;
 145      TuiRegisterDisplayType regsDisplayType;
 146 #endif
 147 {
 148   TuiStatus status = TUI_SUCCESS;
 149
 150   if (layoutType != UNDEFINED_LAYOUT || regsDisplayType != TUI_UNDEFINED_REGS)
 151     {
 152       TuiLayoutType curLayout = currentLayout (), newLayout = UNDEFINED_LAYOUT;
 153       int regsPopulate = FALSE;
 154       Opaque addr = _extractDisplayStartAddr ();
 155       TuiWinInfoPtr newWinWithFocus = (TuiWinInfoPtr) NULL, winWithFocus = tuiWinWithFocus ();
 156       TuiLayoutDefPtr layoutDef = tuiLayoutDef ();
 157
 158
 159       if (layoutType == UNDEFINED_LAYOUT &&
 160           regsDisplayType != TUI_UNDEFINED_REGS)
 161         {
 162           if (curLayout == SRC_DISASSEM_COMMAND)
 163             newLayout = DISASSEM_DATA_COMMAND;
 164           else if (curLayout == SRC_COMMAND || curLayout == SRC_DATA_COMMAND)
 165             newLayout = SRC_DATA_COMMAND;
 166           else if (curLayout == DISASSEM_COMMAND ||
 167                    curLayout == DISASSEM_DATA_COMMAND)
 168             newLayout = DISASSEM_DATA_COMMAND;
 169         }
 170       else
 171         newLayout = layoutType;
 172
 173       regsPopulate = (newLayout == SRC_DATA_COMMAND ||
 174                       newLayout == DISASSEM_DATA_COMMAND ||
 175                       regsDisplayType != TUI_UNDEFINED_REGS);
 176       if (newLayout != curLayout || regsDisplayType != TUI_UNDEFINED_REGS)
 177         {
 178           if (newLayout != curLayout)
 179             {
 180               if (winWithFocus != cmdWin)
 181                 tuiClearWinFocus ();
 182               showLayout (newLayout);
 183               /*
 184                 ** Now determine where focus should be
 185                 */
 186               if (winWithFocus != cmdWin)
 187                 {
 188                   switch (newLayout)
 189                     {
 190                     case SRC_COMMAND:
 191                       tuiSetWinFocusTo (srcWin);
 192                       layoutDef->displayMode = SRC_WIN;
 193                       layoutDef->split = FALSE;
 194                       break;
 195                     case DISASSEM_COMMAND:
 196                       /* the previous layout was not showing
 197                             ** code. this can happen if there is no
 198                             ** source available:
 199                             ** 1. if the source file is in another dir OR
 200                             ** 2. if target was compiled without -g
 201                             ** We still want to show the assembly though!
 202                             */
 203                       addr = vcatch_errors ((OpaqueFuncPtr)
 204                                             tuiGetBeginAsmAddress);
 205                       tuiSetWinFocusTo (disassemWin);
 206                       layoutDef->displayMode = DISASSEM_WIN;
 207                       layoutDef->split = FALSE;
 208                       break;
 209                     case SRC_DISASSEM_COMMAND:
 210                       /* the previous layout was not showing
 211                             ** code. this can happen if there is no
 212                             ** source available:
 213                             ** 1. if the source file is in another dir OR
 214                             ** 2. if target was compiled without -g
 215                             ** We still want to show the assembly though!
 216                             */
 217                       addr = vcatch_errors ((OpaqueFuncPtr)
 218                                             tuiGetBeginAsmAddress);
 219                       if (winWithFocus == srcWin)
 220                         tuiSetWinFocusTo (srcWin);
 221                       else
 222                         tuiSetWinFocusTo (disassemWin);
 223                       layoutDef->split = TRUE;
 224                       break;
 225                     case SRC_DATA_COMMAND:
 226                       if (winWithFocus != dataWin)
 227                         tuiSetWinFocusTo (srcWin);
 228                       else
 229                         tuiSetWinFocusTo (dataWin);
 230                       layoutDef->displayMode = SRC_WIN;
 231                       layoutDef->split = FALSE;
 232                       break;
 233                     case DISASSEM_DATA_COMMAND:
 234                       /* the previous layout was not showing
 235                             ** code. this can happen if there is no
 236                             ** source available:
 237                             ** 1. if the source file is in another dir OR
 238                             ** 2. if target was compiled without -g
 239                             ** We still want to show the assembly though!
 240                             */
 241                       addr = vcatch_errors ((OpaqueFuncPtr)
 242                                             tuiGetBeginAsmAddress);
 243                       if (winWithFocus != dataWin)
 244                         tuiSetWinFocusTo (disassemWin);
 245                       else
 246                         tuiSetWinFocusTo (dataWin);
 247                       layoutDef->displayMode = DISASSEM_WIN;
 248                       layoutDef->split = FALSE;
 249                       break;
 250                     default:
 251                       break;
 252                     }
 253                 }
 254               if (newWinWithFocus != (TuiWinInfoPtr) NULL)
 255                 tuiSetWinFocusTo (newWinWithFocus);
 256               /*
 257                 ** Now update the window content
 258                 */
 259               if (!regsPopulate &&
 260                   (newLayout == SRC_DATA_COMMAND ||
 261                    newLayout == DISASSEM_DATA_COMMAND))
 262                 tuiDisplayAllData ();
 263
 264               tuiUpdateSourceWindowsWithAddr (addr);
 265             }
 266           if (regsPopulate)
 267             {
 268               layoutDef->regsDisplayType =
 269                 (regsDisplayType == TUI_UNDEFINED_REGS ?
 270                  TUI_GENERAL_REGS : regsDisplayType);
 271               tuiShowRegisters (layoutDef->regsDisplayType);
 272             }
 273         }
 274     }
 275   else
 276     status = TUI_FAILURE;
 277
 278   return status;
 279 }                               /* tuiSetLayout */
 280
 281
 282 /*
 283 ** tui_vSetLayoutTo()
 284 **        Function to set the layout to SRC, ASM, SPLIT, NEXT, PREV, DATA,
 285 **        REGS, $REGS, $GREGS, $FREGS, $SREGS with arguments in a va_list
 286 */
 287 TuiStatus
 288 #ifdef __STDC__
 289 tui_vSetLayoutTo (
 290                    va_list args)
 291 #else
 292 tui_vSetLayoutTo (args)
 293      va_list args;
 294 #endif
 295 {
 296   char *layoutName;
 297
 298   layoutName = va_arg (args, char *);
 299
 300   return (_tuiSetLayoutTo (layoutName));
 301 }                               /* tui_vSetLayoutTo */
 302
 303
 304 /*
 305 ** tuiAddWinToLayout().
 306 **        Add the specified window to the layout in a logical way.
 307 **        This means setting up the most logical layout given the
 308 **        window to be added.
 309 */
 310 void
 311 #ifdef __STDC__
 312 tuiAddWinToLayout (
 313                     TuiWinType type)
 314 #else
 315 tuiAddWinToLayout (type)
 316      TuiWinType type;
 317 #endif
 318 {
 319   TuiLayoutType curLayout = currentLayout ();
 320
 321   switch (type)
 322     {
 323     case SRC_WIN:
 324       if (curLayout != SRC_COMMAND &&
 325           curLayout != SRC_DISASSEM_COMMAND &&
 326           curLayout != SRC_DATA_COMMAND)
 327         {
 328           clearSourceWindowsDetail ();
 329           if (curLayout == DISASSEM_DATA_COMMAND)
 330             showLayout (SRC_DATA_COMMAND);
 331           else
 332             showLayout (SRC_COMMAND);
 333         }
 334       break;
 335     case DISASSEM_WIN:
 336       if (curLayout != DISASSEM_COMMAND &&
 337           curLayout != SRC_DISASSEM_COMMAND &&
 338           curLayout != DISASSEM_DATA_COMMAND)
 339         {
 340           clearSourceWindowsDetail ();
 341           if (curLayout == SRC_DATA_COMMAND)
 342             showLayout (DISASSEM_DATA_COMMAND);
 343           else
 344             showLayout (DISASSEM_COMMAND);
 345         }
 346       break;
 347     case DATA_WIN:
 348       if (curLayout != SRC_DATA_COMMAND &&
 349           curLayout != DISASSEM_DATA_COMMAND)
 350         {
 351           if (curLayout == DISASSEM_COMMAND)
 352             showLayout (DISASSEM_DATA_COMMAND);
 353           else
 354             showLayout (SRC_DATA_COMMAND);
 355         }
 356       break;
 357     default:
 358       break;
 359     }
 360
 361   return;
 362 }                               /* tuiAddWinToLayout */
 363
 364
 365 /*
 366 ** tui_vAddWinToLayout().
 367 **        Add the specified window to the layout in a logical way,
 368 **        with arguments in a va_list.
 369 */
 370 void
 371 #ifdef __STDC__
 372 tui_vAddWinToLayout (
 373                       va_list args)
 374 #else
 375 tui_vAddWinToLayout (args)
 376      va_list args;
 377 #endif
 378 {
 379   TuiWinType type = va_arg (args, TuiWinType);
 380
 381   tuiAddWinToLayout (type);
 382
 383   return;
 384 }                               /* tui_vAddWinToLayout */
 385
 386
 387 /*
 388 ** tuiDefaultWinHeight().
 389 **        Answer the height of a window.  If it hasn't been created yet,
 390 **        answer what the height of a window would be based upon its
 391 **        type and the layout.
 392 */
 393 int
 394 #ifdef __STDC__
 395 tuiDefaultWinHeight (
 396                       TuiWinType type,
 397                       TuiLayoutType layout)
 398 #else
 399 tuiDefaultWinHeight (type, layout)
 400      TuiWinType type;
 401      TuiLayoutType layout;
 402 #endif
 403 {
 404   int h;
 405
 406   if (winList[type] != (TuiWinInfoPtr) NULL)
 407     h = winList[type]->generic.height;
 408   else
 409     {
 410       switch (layout)
 411         {
 412         case SRC_COMMAND:
 413         case DISASSEM_COMMAND:
 414           if (m_winPtrIsNull (cmdWin))
 415             h = termHeight () / 2;
 416           else
 417             h = termHeight () - cmdWin->generic.height;
 418           break;
 419         case SRC_DISASSEM_COMMAND:
 420         case SRC_DATA_COMMAND:
 421         case DISASSEM_DATA_COMMAND:
 422           if (m_winPtrIsNull (cmdWin))
 423             h = termHeight () / 3;
 424           else
 425             h = (termHeight () - cmdWin->generic.height) / 2;
 426           break;
 427         default:
 428           h = 0;
 429           break;
 430         }
 431     }
 432
 433   return h;
 434 }                               /* tuiDefaultWinHeight */
 435
 436
 437 /*
 438 ** tuiDefaultWinViewportHeight().
 439 **        Answer the height of a window.  If it hasn't been created yet,
 440 **        answer what the height of a window would be based upon its
 441 **        type and the layout.
 442 */
 443 int
 444 #ifdef __STDC__
 445 tuiDefaultWinViewportHeight (
 446                               TuiWinType type,
 447                               TuiLayoutType layout)
 448 #else
 449 tuiDefaultWinViewportHeight (type, layout)
 450      TuiWinType type;
 451      TuiLayoutType layout;
 452 #endif
 453 {
 454   int h;
 455
 456   h = tuiDefaultWinHeight (type, layout);
 457
 458   if (winList[type] == cmdWin)
 459     h -= 1;
 460   else
 461     h -= 2;
 462
 463   return h;
 464 }                               /* tuiDefaultWinViewportHeight */
 465
 466
 467 /*
 468 ** _initialize_tuiLayout().
 469 **        Function to initialize gdb commands, for tui window layout
 470 **        manipulation.
 471 */
 472 void
 473 _initialize_tuiLayout ()
 474 {
 475   if (tui_version)
 476     {
 477       add_com ("layout", class_tui, _tuiLayout_command,
 478                "Change the layout of windows.\n\
 479 Usage: layout prev | next | <layout_name> \n\
 480 Layout names are:\n\
 481    src   : Displays source and command windows.\n\
 482    asm   : Displays disassembly and command windows.\n\
 483    split : Displays source, disassembly and command windows.\n\
 484    regs  : Displays register window. If existing layout\n\
 485            is source/command or assembly/command, the \n\
 486            register window is displayed. If the\n\
 487            source/assembly/command (split) is displayed, \n\
 488            the register window is displayed with \n\
 489            the window that has current logical focus.\n");
 490       if (xdb_commands)
 491         {
 492           add_com ("td", class_tui, _tuiToggleLayout_command,
 493                    "Toggle between Source/Command and Disassembly/Command layouts.\n");
 494           add_com ("ts", class_tui, _tuiToggleSplitLayout_command,
 495                    "Toggle between Source/Command or Disassembly/Command and \n\
 496 Source/Disassembly/Command layouts.\n");
 497         }
 498     }
 499
 500   return;
 501 }                               /* _intialize_tuiLayout */
 502
 503
 504 /*************************
 505 ** STATIC LOCAL FUNCTIONS
 506 **************************/
 507
 508
 509 /*
 510 ** _tuiSetLayoutTo()
 511 **    Function to set the layout to SRC, ASM, SPLIT, NEXT, PREV, DATA, REGS,
 512 **        $REGS, $GREGS, $FREGS, $SREGS.
 513 */
 514 static TuiStatus
 515 #ifdef __STDC__
 516 _tuiSetLayoutTo (
 517                   char *layoutName)
 518 #else
 519 _tuiSetLayoutTo (layoutName)
 520      char *layoutName;
 521 #endif
 522 {
 523   TuiStatus status = TUI_SUCCESS;
 524
 525   if (layoutName != (char *) NULL)
 526     {
 527       register int i;
 528       register char *bufPtr;
 529       TuiLayoutType newLayout = UNDEFINED_LAYOUT;
 530       TuiRegisterDisplayType dpyType = TUI_UNDEFINED_REGS;
 531       TuiLayoutType curLayout = currentLayout ();
 532
 533       bufPtr = (char *) tuiStrDup (layoutName);
 534       for (i = 0; (i < strlen (layoutName)); i++)
 535         bufPtr[i] = toupper (bufPtr[i]);
 536
 537       /* First check for ambiguous input */
 538       if (strlen (bufPtr) <= 1 && (*bufPtr == 'S' || *bufPtr == '$'))
 539         {
 540           warning ("Ambiguous command input.\n");
 541           status = TUI_FAILURE;
 542         }
 543       else
 544         {
 545           if (subsetCompare (bufPtr, "SRC"))
 546             newLayout = SRC_COMMAND;
 547           else if (subsetCompare (bufPtr, "ASM"))
 548             newLayout = DISASSEM_COMMAND;
 549           else if (subsetCompare (bufPtr, "SPLIT"))
 550             newLayout = SRC_DISASSEM_COMMAND;
 551           else if (subsetCompare (bufPtr, "REGS") ||
 552                    subsetCompare (bufPtr, TUI_GENERAL_SPECIAL_REGS_NAME) ||
 553                    subsetCompare (bufPtr, TUI_GENERAL_REGS_NAME) ||
 554                    subsetCompare (bufPtr, TUI_FLOAT_REGS_NAME) ||
 555                    subsetCompare (bufPtr, TUI_SPECIAL_REGS_NAME))
 556             {
 557               if (curLayout == SRC_COMMAND || curLayout == SRC_DATA_COMMAND)
 558                 newLayout = SRC_DATA_COMMAND;
 559               else
 560                 newLayout = DISASSEM_DATA_COMMAND;
 561
 562 /* could ifdef out the following code. when compile with -z, there are null
 563    pointer references that cause a core dump if 'layout regs' is the first
 564    layout command issued by the user. HP has asked us to hook up this code
 565    - edie epstein
 566  */
 567               if (subsetCompare (bufPtr, TUI_FLOAT_REGS_NAME))
 568                 {
 569                   if (dataWin->detail.dataDisplayInfo.regsDisplayType !=
 570                       TUI_SFLOAT_REGS &&
 571                       dataWin->detail.dataDisplayInfo.regsDisplayType !=
 572                       TUI_DFLOAT_REGS)
 573                     dpyType = TUI_SFLOAT_REGS;
 574                   else
 575                     dpyType =
 576                       dataWin->detail.dataDisplayInfo.regsDisplayType;
 577                 }
 578               else if (subsetCompare (bufPtr,
 579                                       TUI_GENERAL_SPECIAL_REGS_NAME))
 580                 dpyType = TUI_GENERAL_AND_SPECIAL_REGS;
 581               else if (subsetCompare (bufPtr, TUI_GENERAL_REGS_NAME))
 582                 dpyType = TUI_GENERAL_REGS;
 583               else if (subsetCompare (bufPtr, TUI_SPECIAL_REGS_NAME))
 584                 dpyType = TUI_SPECIAL_REGS;
 585               else
 586                 {
 587                   if (dataWin->detail.dataDisplayInfo.regsDisplayType !=
 588                       TUI_UNDEFINED_REGS)
 589                     dpyType =
 590                       dataWin->detail.dataDisplayInfo.regsDisplayType;
 591                   else
 592                     dpyType = TUI_GENERAL_REGS;
 593                 }
 594
 595 /* end of potential ifdef
 596  */
 597
 598 /* if ifdefed out code above, then assume that the user wishes to display the
 599    general purpose registers
 600  */
 601
 602 /*              dpyType = TUI_GENERAL_REGS;
 603  */
 604             }
 605           else if (subsetCompare (bufPtr, "NEXT"))
 606             newLayout = _nextLayout ();
 607           else if (subsetCompare (bufPtr, "PREV"))
 608             newLayout = _prevLayout ();
 609           else
 610             status = TUI_FAILURE;
 611           free (bufPtr);
 612
 613           tuiSetLayout (newLayout, dpyType);
 614         }
 615     }
 616   else
 617     status = TUI_FAILURE;
 618
 619   return status;
 620 }                               /* _tuiSetLayoutTo */
 621
 622
 623 static Opaque
 624 #ifdef __STDC__
 625 _extractDisplayStartAddr (void)
 626 #else
 627 _extractDisplayStartAddr ()
 628 #endif
 629 {
 630   TuiLayoutType curLayout = currentLayout ();
 631   Opaque addr;
 632
 633   switch (curLayout)
 634     {
 635     case SRC_COMMAND:
 636     case SRC_DATA_COMMAND:
 637       addr = (Opaque) find_line_pc (
 638                                      current_source_symtab,
 639                           srcWin->detail.sourceInfo.startLineOrAddr.lineNo);
 640       break;
 641     case DISASSEM_COMMAND:
 642     case SRC_DISASSEM_COMMAND:
 643     case DISASSEM_DATA_COMMAND:
 644       addr = disassemWin->detail.sourceInfo.startLineOrAddr.addr;
 645       break;
 646     default:
 647       addr = (Opaque) NULL;
 648       break;
 649     }
 650
 651   return addr;
 652 }                               /* _extractDisplayStartAddr */
 653
 654
 655 static void
 656 #ifdef __STDC__
 657 _tuiHandleXDBLayout (
 658                       TuiLayoutDefPtr layoutDef)
 659 #else
 660 _tuiHandleXDBLayout (layoutDef)
 661      TuiLayoutDefPtr layoutDef;
 662 #endif
 663 {
 664   if (layoutDef->split)
 665     {
 666       tuiSetLayout (SRC_DISASSEM_COMMAND, TUI_UNDEFINED_REGS);
 667       tuiSetWinFocusTo (winList[layoutDef->displayMode]);
 668     }
 669   else
 670     {
 671       if (layoutDef->displayMode == SRC_WIN)
 672         tuiSetLayout (SRC_COMMAND, TUI_UNDEFINED_REGS);
 673       else
 674         tuiSetLayout (DISASSEM_DATA_COMMAND, layoutDef->regsDisplayType);
 675     }
 676
 677
 678   return;
 679 }                               /* _tuiHandleXDBLayout */
 680
 681
 682 static void
 683 #ifdef __STDC__
 684 _tuiToggleLayout_command (
 685                            char *arg,
 686                            int fromTTY)
 687 #else
 688 _tuiToggleLayout_command (arg, fromTTY)
 689      char *arg;
 690      int fromTTY;
 691 #endif
 692 {
 693   tuiDo ((TuiOpaqueFuncPtr) _tui_vToggleLayout_command, arg, fromTTY);
 694 }
 695
 696 static void
 697 #ifdef __STDC__
 698 _tui_vToggleLayout_command (
 699                              va_list args)
 700 #else
 701 _tui_vToggleLayout_command (args)
 702      va_list args;
 703 #endif
 704 {
 705   TuiLayoutDefPtr layoutDef = tuiLayoutDef ();
 706
 707   if (layoutDef->displayMode == SRC_WIN)
 708     layoutDef->displayMode = DISASSEM_WIN;
 709   else
 710     layoutDef->displayMode = SRC_WIN;
 711
 712   if (!layoutDef->split)
 713     _tuiHandleXDBLayout (layoutDef);
 714
 715   return;
 716 }                               /* _tuiToggleLayout_command */
 717
 718
 719 static void
 720 #ifdef __STDC__
 721 _tuiToggleSplitLayout_command (
 722                                 char *arg,
 723                                 int fromTTY)
 724 #else
 725 _tuiToggleSplitLayout_command (arg, fromTTY)
 726      char *arg;
 727      int fromTTY;
 728 #endif
 729 {
 730   tuiDo ((TuiOpaqueFuncPtr) _tui_vToggleSplitLayout_command, arg, fromTTY);
 731 }
 732
 733 static void
 734 #ifdef __STDC__
 735 _tui_vToggleSplitLayout_command (
 736                                   va_list args)
 737 #else
 738 _tui_vToggleSplitLayout_command (args)
 739      va_list args;
 740 #endif
 741 {
 742   TuiLayoutDefPtr layoutDef = tuiLayoutDef ();
 743
 744   layoutDef->split = (!layoutDef->split);
 745   _tuiHandleXDBLayout (layoutDef);
 746
 747   return;
 748 }                               /* _tui_vToggleSplitLayout_command */
 749
 750
 751 static void
 752 #ifdef __STDC__
 753 _tuiLayout_command (
 754                      char *arg,
 755                      int fromTTY)
 756 #else
 757 _tuiLayout_command (arg, fromTTY)
 758      char *arg;
 759      int fromTTY;
 760 #endif
 761 {
 762   if ((TuiStatus) tuiDo (
 763                    (TuiOpaqueFuncPtr) tui_vSetLayoutTo, arg) != TUI_SUCCESS)
 764     warning ("Invalid layout specified.\n%s" LAYOUT_USAGE);
 765
 766   return;
 767 }                               /* _tuiLayout_command */
 768
 769 /*
 770 ** _nextLayout().
 771 **        Answer the previous layout to cycle to.
 772 */
 773 static TuiLayoutType
 774 #ifdef __STDC__
 775 _nextLayout (void)
 776 #else
 777 _nextLayout ()
 778 #endif
 779 {
 780   TuiLayoutType newLayout;
 781
 782   newLayout = currentLayout ();
 783   if (newLayout == UNDEFINED_LAYOUT)
 784     newLayout = SRC_COMMAND;
 785   else
 786     {
 787       newLayout++;
 788       if (newLayout == UNDEFINED_LAYOUT)
 789         newLayout = SRC_COMMAND;
 790     }
 791
 792   return newLayout;
 793 }                               /* _nextLayout */
 794
 795
 796 /*
 797 ** _prevLayout().
 798 **        Answer the next layout to cycle to.
 799 */
 800 static TuiLayoutType
 801 #ifdef __STDC__
 802 _prevLayout (void)
 803 #else
 804 _prevLayout ()
 805 #endif
 806 {
 807   TuiLayoutType newLayout;
 808
 809   newLayout = currentLayout ();
 810   if (newLayout == SRC_COMMAND)
 811     newLayout = DISASSEM_DATA_COMMAND;
 812   else
 813     {
 814       newLayout--;
 815       if (newLayout == UNDEFINED_LAYOUT)
 816         newLayout = DISASSEM_DATA_COMMAND;
 817     }
 818
 819   return newLayout;
 820 }                               /* _prevLayout */
 821
 822
 823
 824 /*
 825 ** _makeCommandWindow().
 826 */
 827 static void
 828 #ifdef __STDC__
 829 _makeCommandWindow (
 830                      TuiWinInfoPtr * winInfoPtr,
 831                      int height,
 832                      int originY)
 833 #else
 834 _makeCommandWindow (winInfoPtr, height, originY)
 835      TuiWinInfoPtr *winInfoPtr;
 836      int height;
 837      int originY;
 838 #endif
 839 {
 840   _initAndMakeWin ((Opaque *) winInfoPtr,
 841                    CMD_WIN,
 842                    height,
 843                    termWidth (),
 844                    0,
 845                    originY,
 846                    DONT_BOX_WINDOW);
 847
 848   (*winInfoPtr)->canHighlight = FALSE;
 849
 850   return;
 851 }                               /* _makeCommandWindow */
 852
 853
 854 /*
 855 ** _makeSourceWindow().
 856 */
 857 static void
 858 #ifdef __STDC__
 859 _makeSourceWindow (
 860                     TuiWinInfoPtr * winInfoPtr,
 861                     int height,
 862                     int originY)
 863 #else
 864 _makeSourceWindow (winInfoPtr, height, originY)
 865      TuiWinInfoPtr *winInfoPtr;
 866      int height;
 867      int originY;
 868 #endif
 869 {
 870   _makeSourceOrDisassemWindow (winInfoPtr, SRC_WIN, height, originY);
 871
 872   return;
 873 }                               /* _makeSourceWindow */
 874
 875
 876 /*
 877 ** _makeDisassemWindow().
 878 */
 879 static void
 880 #ifdef __STDC__
 881 _makeDisassemWindow (
 882                       TuiWinInfoPtr * winInfoPtr,
 883                       int height,
 884                       int originY)
 885 #else
 886 _makeDisassemWindow (winInfoPtr, height, originY)
 887      TuiWinInfoPtr *winInfoPtr;
 888      int height;
 889      int originY;
 890 #endif
 891 {
 892   _makeSourceOrDisassemWindow (winInfoPtr, DISASSEM_WIN, height, originY);
 893
 894   return;
 895 }                               /* _makeDisassemWindow */
 896
 897
 898 /*
 899 ** _makeDataWindow().
 900 */
 901 static void
 902 #ifdef __STDC__
 903 _makeDataWindow (
 904                   TuiWinInfoPtr * winInfoPtr,
 905                   int height,
 906                   int originY)
 907 #else
 908 _makeDataWindow (winInfoPtr, height, originY)
 909      TuiWinInfoPtr *winInfoPtr;
 910      int height;
 911      int originY;
 912 #endif
 913 {
 914   _initAndMakeWin ((Opaque *) winInfoPtr,
 915                    DATA_WIN,
 916                    height,
 917                    termWidth (),
 918                    0,
 919                    originY,
 920                    BOX_WINDOW);
 921
 922   return;
 923 }                               /* _makeDataWindow */
 924
 925
 926
 927 /*
 928 **    _showSourceCommand().
 929 **        Show the Source/Command layout
 930 */
 931 static void
 932 #ifdef __STDC__
 933 _showSourceCommand (void)
 934 #else
 935 _showSourceCommand ()
 936 #endif
 937 {
 938   _showSourceOrDisassemAndCommand (SRC_COMMAND);
 939
 940   return;
 941 }                               /* _showSourceCommand */
 942
 943
 944 /*
 945 **    _showDisassemCommand().
 946 **        Show the Dissassem/Command layout
 947 */
 948 static void
 949 #ifdef __STDC__
 950 _showDisassemCommand (void)
 951 #else
 952 _showDisassemCommand ()
 953 #endif
 954 {
 955   _showSourceOrDisassemAndCommand (DISASSEM_COMMAND);
 956
 957   return;
 958 }                               /* _showDisassemCommand */
 959
 960
 961 /*
 962 **    _showSourceDisassemCommand().
 963 **        Show the Source/Disassem/Command layout
 964 */
 965 static void
 966 #ifdef __STDC__
 967 _showSourceDisassemCommand (void)
 968 #else
 969 _showSourceDisassemCommand ()
 970 #endif
 971 {
 972   TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
 973
 974   if (currentLayout () != SRC_DISASSEM_COMMAND)
 975     {
 976       int cmdHeight, srcHeight, asmHeight;
 977
 978       if (m_winPtrNotNull (cmdWin))
 979         cmdHeight = cmdWin->generic.height;
 980       else
 981         cmdHeight = termHeight () / 3;
 982
 983       srcHeight = (termHeight () - cmdHeight) / 2;
 984       asmHeight = termHeight () - (srcHeight + cmdHeight);
 985
 986       if (m_winPtrIsNull (srcWin))
 987         _makeSourceWindow (&srcWin, srcHeight, 0);
 988       else
 989         {
 990           _initGenWinInfo (&srcWin->generic,
 991                            srcWin->generic.type,
 992                            srcHeight,
 993                            srcWin->generic.width,
 994                            srcWin->detail.sourceInfo.executionInfo->width,
 995                            0);
 996           srcWin->canHighlight = TRUE;
 997           _initGenWinInfo (srcWin->detail.sourceInfo.executionInfo,
 998                            EXEC_INFO_WIN,
 999                            srcHeight,
1000                            3,
1001                            0,
1002                            0);
1003           m_beVisible (srcWin);
1004           m_beVisible (srcWin->detail.sourceInfo.executionInfo);
1005           srcWin->detail.sourceInfo.hasLocator = FALSE;;
1006         }
1007       if (m_winPtrNotNull (srcWin))
1008         {
1009           TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
1010
1011           tuiShowSourceContent (srcWin);
1012           if (m_winPtrIsNull (disassemWin))
1013             {
1014               _makeDisassemWindow (&disassemWin, asmHeight, srcHeight - 1);
1015               _initAndMakeWin ((Opaque *) & locator,
1016                                LOCATOR_WIN,
1017                                2 /* 1 */ ,
1018                                termWidth (),
1019                                0,
1020                                (srcHeight + asmHeight) - 1,
1021                                DONT_BOX_WINDOW);
1022             }
1023           else
1024             {
1025               _initGenWinInfo (locator,
1026                                LOCATOR_WIN,
1027                                2 /* 1 */ ,
1028                                termWidth (),
1029                                0,
1030                                (srcHeight + asmHeight) - 1);
1031               disassemWin->detail.sourceInfo.hasLocator = TRUE;
1032               _initGenWinInfo (
1033                                 &disassemWin->generic,
1034                                 disassemWin->generic.type,
1035                                 asmHeight,
1036                                 disassemWin->generic.width,
1037                         disassemWin->detail.sourceInfo.executionInfo->width,
1038                                 srcHeight - 1);
1039               _initGenWinInfo (disassemWin->detail.sourceInfo.executionInfo,
1040                                EXEC_INFO_WIN,
1041                                asmHeight,
1042                                3,
1043                                0,
1044                                srcHeight - 1);
1045               disassemWin->canHighlight = TRUE;
1046               m_beVisible (disassemWin);
1047               m_beVisible (disassemWin->detail.sourceInfo.executionInfo);
1048             }
1049           if (m_winPtrNotNull (disassemWin))
1050             {
1051               srcWin->detail.sourceInfo.hasLocator = FALSE;
1052               disassemWin->detail.sourceInfo.hasLocator = TRUE;
1053               m_beVisible (locator);
1054               tuiShowLocatorContent ();
1055               tuiShowSourceContent (disassemWin);
1056
1057               if (m_winPtrIsNull (cmdWin))
1058                 _makeCommandWindow (&cmdWin,
1059                                     cmdHeight,
1060                                     termHeight () - cmdHeight);
1061               else
1062                 {
1063                   _initGenWinInfo (&cmdWin->generic,
1064                                    cmdWin->generic.type,
1065                                    cmdWin->generic.height,
1066                                    cmdWin->generic.width,
1067                                    0,
1068                                    cmdWin->generic.origin.y);
1069                   cmdWin->canHighlight = FALSE;
1070                   m_beVisible (cmdWin);
1071                 }
1072               if (m_winPtrNotNull (cmdWin))
1073                 tuiRefreshWin (&cmdWin->generic);
1074             }
1075         }
1076       setCurrentLayoutTo (SRC_DISASSEM_COMMAND);
1077     }
1078
1079   return;
1080 }                               /* _showSourceDisassemCommand */
1081
1082
1083 /*
1084 **    _showData().
1085 **        Show the Source/Data/Command or the Dissassembly/Data/Command layout
1086 */
1087 static void
1088 #ifdef __STDC__
1089 _showData (
1090             TuiLayoutType newLayout)
1091 #else
1092 _showData (newLayout)
1093      TuiLayoutType newLayout;
1094 #endif
1095 {
1096   int totalHeight = (termHeight () - cmdWin->generic.height);
1097   int srcHeight, dataHeight;
1098   TuiWinType winType;
1099   TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
1100
1101
1102   dataHeight = totalHeight / 2;
1103   srcHeight = totalHeight - dataHeight;
1104   m_allBeInvisible ();
1105   m_beInvisible (locator);
1106   _makeDataWindow (&dataWin, dataHeight, 0);
1107   dataWin->canHighlight = TRUE;
1108   if (newLayout == SRC_DATA_COMMAND)
1109     winType = SRC_WIN;
1110   else
1111     winType = DISASSEM_WIN;
1112   if (m_winPtrIsNull (winList[winType]))
1113     {
1114       if (winType == SRC_WIN)
1115         _makeSourceWindow (&winList[winType], srcHeight, dataHeight - 1);
1116       else
1117         _makeDisassemWindow (&winList[winType], srcHeight, dataHeight - 1);
1118       _initAndMakeWin ((Opaque *) & locator,
1119                        LOCATOR_WIN,
1120                        2 /* 1 */ ,
1121                        termWidth (),
1122                        0,
1123                        totalHeight - 1,
1124                        DONT_BOX_WINDOW);
1125     }
1126   else
1127     {
1128       _initGenWinInfo (&winList[winType]->generic,
1129                        winList[winType]->generic.type,
1130                        srcHeight,
1131                        winList[winType]->generic.width,
1132                    winList[winType]->detail.sourceInfo.executionInfo->width,
1133                        dataHeight - 1);
1134       _initGenWinInfo (winList[winType]->detail.sourceInfo.executionInfo,
1135                        EXEC_INFO_WIN,
1136                        srcHeight,
1137                        3,
1138                        0,
1139                        dataHeight - 1);
1140       m_beVisible (winList[winType]);
1141       m_beVisible (winList[winType]->detail.sourceInfo.executionInfo);
1142       _initGenWinInfo (locator,
1143                        LOCATOR_WIN,
1144                        2 /* 1 */ ,
1145                        termWidth (),
1146                        0,
1147                        totalHeight - 1);
1148     }
1149   winList[winType]->detail.sourceInfo.hasLocator = TRUE;
1150   m_beVisible (locator);
1151   tuiShowLocatorContent ();
1152   addToSourceWindows (winList[winType]);
1153   setCurrentLayoutTo (newLayout);
1154
1155   return;
1156 }                               /* _showData */
1157
1158 /*
1159 ** _initGenWinInfo().
1160 */
1161 static void
1162 #ifdef __STDC__
1163 _initGenWinInfo (
1164                   TuiGenWinInfoPtr winInfo,
1165                   TuiWinType type,
1166                   int height,
1167                   int width,
1168                   int originX,
1169                   int originY)
1170 #else
1171 _initGenWinInfo (winInfo, type, height, width, originX, originY)
1172      TuiGenWinInfoPtr winInfo;
1173      TuiWinType type;
1174      int height;
1175      int width;
1176      int originX;
1177      int originY;
1178 #endif
1179 {
1180   int h = height;
1181
1182   winInfo->type = type;
1183   winInfo->width = width;
1184   winInfo->height = h;
1185   if (h > 1)
1186     {
1187       winInfo->viewportHeight = h - 1;
1188       if (winInfo->type != CMD_WIN)
1189         winInfo->viewportHeight--;
1190     }
1191   else
1192     winInfo->viewportHeight = 1;
1193   winInfo->origin.x = originX;
1194   winInfo->origin.y = originY;
1195
1196   return;
1197 }                               /* _initGenWinInfo */
1198
1199 /*
1200 ** _initAndMakeWin().
1201 */
1202 static void
1203 #ifdef __STDC__
1204 _initAndMakeWin (
1205                   Opaque * winInfoPtr,
1206                   TuiWinType winType,
1207                   int height,
1208                   int width,
1209                   int originX,
1210                   int originY,
1211                   int boxIt)
1212 #else
1213 _initAndMakeWin (winInfoPtr, winType, height, width, originX, originY, boxIt)
1214      Opaque *winInfoPtr;
1215      TuiWinType winType;
1216      int height;
1217      int width;
1218      int originX;
1219      int originY;
1220      int boxIt;
1221 #endif
1222 {
1223   Opaque opaqueWinInfo = *winInfoPtr;
1224   TuiGenWinInfoPtr generic;
1225
1226   if (opaqueWinInfo == (Opaque) NULL)
1227     {
1228       if (m_winIsAuxillary (winType))
1229         opaqueWinInfo = (Opaque) allocGenericWinInfo ();
1230       else
1231         opaqueWinInfo = (Opaque) allocWinInfo (winType);
1232     }
1233   if (m_winIsAuxillary (winType))
1234     generic = (TuiGenWinInfoPtr) opaqueWinInfo;
1235   else
1236     generic = &((TuiWinInfoPtr) opaqueWinInfo)->generic;
1237
1238   if (opaqueWinInfo != (Opaque) NULL)
1239     {
1240       _initGenWinInfo (generic, winType, height, width, originX, originY);
1241       if (!m_winIsAuxillary (winType))
1242         {
1243           if (generic->type == CMD_WIN)
1244             ((TuiWinInfoPtr) opaqueWinInfo)->canHighlight = FALSE;
1245           else
1246             ((TuiWinInfoPtr) opaqueWinInfo)->canHighlight = TRUE;
1247         }
1248       makeWindow (generic, boxIt);
1249       if (winType == LOCATOR_WIN)
1250         tuiClearLocatorDisplay ();
1251       echo ();
1252     }
1253   *winInfoPtr = opaqueWinInfo;
1254
1255   return;
1256 }                               /* _initAndMakeWin */
1257
1258
1259 /*
1260 ** _makeSourceOrDisassemWindow().
1261 */
1262 static void
1263 #ifdef __STDC__
1264 _makeSourceOrDisassemWindow (
1265                               TuiWinInfoPtr * winInfoPtr,
1266                               TuiWinType type,
1267                               int height,
1268                               int originY)
1269 #else
1270 _makeSourceOrDisassemWindow (winInfoPtr, type, height, originY)
1271      TuiWinInfoPtr *winInfoPtr;
1272      TuiWinType type;
1273      int height;
1274      int originY;
1275 #endif
1276 {
1277   TuiGenWinInfoPtr executionInfo = (TuiGenWinInfoPtr) NULL;
1278
1279   /*
1280     ** Create the exeuction info window.
1281     */
1282   if (type == SRC_WIN)
1283     executionInfo = sourceExecInfoWinPtr ();
1284   else
1285     executionInfo = disassemExecInfoWinPtr ();
1286   _initAndMakeWin ((Opaque *) & executionInfo,
1287                    EXEC_INFO_WIN,
1288                    height,
1289                    3,
1290                    0,
1291                    originY,
1292                    DONT_BOX_WINDOW);
1293   /*
1294     ** Now create the source window.
1295     */
1296   _initAndMakeWin ((Opaque *) winInfoPtr,
1297                    type,
1298                    height,
1299                    termWidth () - executionInfo->width,
1300                    executionInfo->width,
1301                    originY,
1302                    BOX_WINDOW);
1303
1304   (*winInfoPtr)->detail.sourceInfo.executionInfo = executionInfo;
1305
1306   return;
1307 }                               /* _makeSourceOrDisassemWindow */
1308
1309
1310 /*
1311 **    _showSourceOrDisassemAndCommand().
1312 **        Show the Source/Command or the Disassem layout
1313 */
1314 static void
1315 #ifdef __STDC__
1316 _showSourceOrDisassemAndCommand (
1317                                   TuiLayoutType layoutType)
1318 #else
1319 _showSourceOrDisassemAndCommand (layoutType)
1320      TuiLayoutType layoutType;
1321 #endif
1322 {
1323   if (currentLayout () != layoutType)
1324     {
1325       TuiWinInfoPtr *winInfoPtr;
1326       int areaLeft;
1327       int srcHeight, cmdHeight;
1328       TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
1329
1330       if (m_winPtrNotNull (cmdWin))
1331         cmdHeight = cmdWin->generic.height;
1332       else
1333         cmdHeight = termHeight () / 3;
1334       srcHeight = termHeight () - cmdHeight;
1335
1336
1337       if (layoutType == SRC_COMMAND)
1338         winInfoPtr = &srcWin;
1339       else
1340         winInfoPtr = &disassemWin;
1341
1342       if (m_winPtrIsNull (*winInfoPtr))
1343         {
1344           if (layoutType == SRC_COMMAND)
1345             _makeSourceWindow (winInfoPtr, srcHeight - 1, 0);
1346           else
1347             _makeDisassemWindow (winInfoPtr, srcHeight - 1, 0);
1348           _initAndMakeWin ((Opaque *) & locator,
1349                            LOCATOR_WIN,
1350                            2 /* 1 */ ,
1351                            termWidth (),
1352                            0,
1353                            srcHeight - 1,
1354                            DONT_BOX_WINDOW);
1355         }
1356       else
1357         {
1358           _initGenWinInfo (locator,
1359                            LOCATOR_WIN,
1360                            2 /* 1 */ ,
1361                            termWidth (),
1362                            0,
1363                            srcHeight - 1);
1364           (*winInfoPtr)->detail.sourceInfo.hasLocator = TRUE;
1365           _initGenWinInfo (
1366                             &(*winInfoPtr)->generic,
1367                             (*winInfoPtr)->generic.type,
1368                             srcHeight - 1,
1369                             (*winInfoPtr)->generic.width,
1370                       (*winInfoPtr)->detail.sourceInfo.executionInfo->width,
1371                             0);
1372           _initGenWinInfo ((*winInfoPtr)->detail.sourceInfo.executionInfo,
1373                            EXEC_INFO_WIN,
1374                            srcHeight - 1,
1375                            3,
1376                            0,
1377                            0);
1378           (*winInfoPtr)->canHighlight = TRUE;
1379           m_beVisible (*winInfoPtr);
1380           m_beVisible ((*winInfoPtr)->detail.sourceInfo.executionInfo);
1381         }
1382       if (m_winPtrNotNull (*winInfoPtr))
1383         {
1384           (*winInfoPtr)->detail.sourceInfo.hasLocator = TRUE;
1385           m_beVisible (locator);
1386           tuiShowLocatorContent ();
1387           tuiShowSourceContent (*winInfoPtr);
1388
1389           if (m_winPtrIsNull (cmdWin))
1390             {
1391               _makeCommandWindow (&cmdWin, cmdHeight, srcHeight);
1392               tuiRefreshWin (&cmdWin->generic);
1393             }
1394           else
1395             {
1396               _initGenWinInfo (&cmdWin->generic,
1397                                cmdWin->generic.type,
1398                                cmdWin->generic.height,
1399                                cmdWin->generic.width,
1400                                cmdWin->generic.origin.x,
1401                                cmdWin->generic.origin.y);
1402               cmdWin->canHighlight = FALSE;
1403               m_beVisible (cmdWin);
1404             }
1405         }
1406       setCurrentLayoutTo (layoutType);
1407     }
1408
1409   return;
1410 }                               /* _showSourceOrDisassemAndCommand */