gdb/tui/tuiLayout.c

   1 /* TUI layout window management.
   2
   3    Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation,
   4    Inc.
   5
   6    Contributed by Hewlett-Packard Company.
   7
   8    This file is part of GDB.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 59 Temple Place - Suite 330,
  23    Boston, MA 02111-1307, USA.  */
  24
  25 /* FIXME: cagney/2002-02-28: The GDB coding standard indicates that
  26    "defs.h" should be included first.  Unfortunatly some systems
  27    (currently Debian GNU/Linux) include the <stdbool.h> via <curses.h>
  28    and they clash with "bfd.h"'s definiton of true/false.  The correct
  29    fix is to remove true/false from "bfd.h", however, until that
  30    happens, hack around it by including "config.h" and <curses.h>
  31    first.  */
  32
  33 #include "config.h"
  34 #ifdef HAVE_NCURSES_H
  35 #include <ncurses.h>
  36 #else
  37 #ifdef HAVE_CURSES_H
  38 #include <curses.h>
  39 #endif
  40 #endif
  41
  42 #include "defs.h"
  43 #include "command.h"
  44 #include "symtab.h"
  45 #include "frame.h"
  46 #include "source.h"
  47 #include <ctype.h>
  48
  49 #include "tui.h"
  50 #include "tuiData.h"
  51 #include "tuiDataWin.h"
  52 #include "tuiGeneralWin.h"
  53 #include "tuiStack.h"
  54 #include "tuiRegs.h"
  55 #include "tuiWin.h"
  56 #include "tuiSourceWin.h"
  57 #include "tuiDisassem.h"
  58
  59 /*******************************
  60 ** Static Local Decls
  61 ********************************/
  62 static void showLayout (TuiLayoutType);
  63 static void _initGenWinInfo (TuiGenWinInfoPtr, TuiWinType, int, int, int, int);
  64 static void _initAndMakeWin (Opaque *, TuiWinType, int, int, int, int, int);
  65 static void _showSourceOrDisassemAndCommand (TuiLayoutType);
  66 static void _makeSourceOrDisassemWindow (TuiWinInfoPtr *, TuiWinType, int, int);
  67 static void _makeCommandWindow (TuiWinInfoPtr *, int, int);
  68 static void _makeSourceWindow (TuiWinInfoPtr *, int, int);
  69 static void _makeDisassemWindow (TuiWinInfoPtr *, int, int);
  70 static void _makeDataWindow (TuiWinInfoPtr *, int, int);
  71 static void _showSourceCommand (void);
  72 static void _showDisassemCommand (void);
  73 static void _showSourceDisassemCommand (void);
  74 static void _showData (TuiLayoutType);
  75 static TuiLayoutType _nextLayout (void);
  76 static TuiLayoutType _prevLayout (void);
  77 static void _tuiLayout_command (char *, int);
  78 static void _tuiToggleLayout_command (char *, int);
  79 static void _tuiToggleSplitLayout_command (char *, int);
  80 static CORE_ADDR _extractDisplayStartAddr (void);
  81 static void _tuiHandleXDBLayout (TuiLayoutDefPtr);
  82
  83
  84 /***************************************
  85 ** DEFINITIONS
  86 ***************************************/
  87
  88 #define LAYOUT_USAGE     "Usage: layout prev | next | <layout_name> \n"
  89
  90 /* Show the screen layout defined.  */
  91 static void
  92 showLayout (TuiLayoutType layout)
  93 {
  94   TuiLayoutType curLayout = currentLayout ();
  95
  96   if (layout != curLayout)
  97     {
  98       /*
  99          ** Since the new layout may cause changes in window size, we
 100          ** should free the content and reallocate on next display of
 101          ** source/asm
 102        */
 103       freeAllSourceWinsContent ();
 104       clearSourceWindows ();
 105       if (layout == SRC_DATA_COMMAND || layout == DISASSEM_DATA_COMMAND)
 106         {
 107           _showData (layout);
 108           refreshAll (winList);
 109         }
 110       else
 111         {
 112           /* First make the current layout be invisible */
 113           m_allBeInvisible ();
 114           m_beInvisible (locatorWinInfoPtr ());
 115
 116           switch (layout)
 117             {
 118               /* Now show the new layout */
 119             case SRC_COMMAND:
 120               _showSourceCommand ();
 121               addToSourceWindows (srcWin);
 122               break;
 123             case DISASSEM_COMMAND:
 124               _showDisassemCommand ();
 125               addToSourceWindows (disassemWin);
 126               break;
 127             case SRC_DISASSEM_COMMAND:
 128               _showSourceDisassemCommand ();
 129               addToSourceWindows (srcWin);
 130               addToSourceWindows (disassemWin);
 131               break;
 132             default:
 133               break;
 134             }
 135         }
 136     }
 137 }
 138
 139
 140 /*
 141    ** tuiSetLayout()
 142    **    Function to set the layout to SRC_COMMAND, DISASSEM_COMMAND,
 143    **    SRC_DISASSEM_COMMAND, SRC_DATA_COMMAND, or DISASSEM_DATA_COMMAND.
 144    **    If the layout is SRC_DATA_COMMAND, DISASSEM_DATA_COMMAND, or
 145    **    UNDEFINED_LAYOUT, then the data window is populated according
 146    **    to regsDisplayType.
 147  */
 148 TuiStatus
 149 tuiSetLayout (TuiLayoutType layoutType,
 150               TuiRegisterDisplayType regsDisplayType)
 151 {
 152   TuiStatus status = TUI_SUCCESS;
 153
 154   if (layoutType != UNDEFINED_LAYOUT || regsDisplayType != TUI_UNDEFINED_REGS)
 155     {
 156       TuiLayoutType curLayout = currentLayout (), newLayout = UNDEFINED_LAYOUT;
 157       int regsPopulate = FALSE;
 158       CORE_ADDR addr = _extractDisplayStartAddr ();
 159       TuiWinInfoPtr newWinWithFocus = (TuiWinInfoPtr) NULL, winWithFocus = tuiWinWithFocus ();
 160       TuiLayoutDefPtr layoutDef = tuiLayoutDef ();
 161
 162
 163       if (layoutType == UNDEFINED_LAYOUT &&
 164           regsDisplayType != TUI_UNDEFINED_REGS)
 165         {
 166           if (curLayout == SRC_DISASSEM_COMMAND)
 167             newLayout = DISASSEM_DATA_COMMAND;
 168           else if (curLayout == SRC_COMMAND || curLayout == SRC_DATA_COMMAND)
 169             newLayout = SRC_DATA_COMMAND;
 170           else if (curLayout == DISASSEM_COMMAND ||
 171                    curLayout == DISASSEM_DATA_COMMAND)
 172             newLayout = DISASSEM_DATA_COMMAND;
 173         }
 174       else
 175         newLayout = layoutType;
 176
 177       regsPopulate = (newLayout == SRC_DATA_COMMAND ||
 178                       newLayout == DISASSEM_DATA_COMMAND ||
 179                       regsDisplayType != TUI_UNDEFINED_REGS);
 180       if (newLayout != curLayout || regsDisplayType != TUI_UNDEFINED_REGS)
 181         {
 182           if (newLayout != curLayout)
 183             {
 184               showLayout (newLayout);
 185               /*
 186                  ** Now determine where focus should be
 187                */
 188               if (winWithFocus != cmdWin)
 189                 {
 190                   switch (newLayout)
 191                     {
 192                     case SRC_COMMAND:
 193                       tuiSetWinFocusTo (srcWin);
 194                       layoutDef->displayMode = SRC_WIN;
 195                       layoutDef->split = FALSE;
 196                       break;
 197                     case DISASSEM_COMMAND:
 198                       /* the previous layout was not showing
 199                          ** code. this can happen if there is no
 200                          ** source available:
 201                          ** 1. if the source file is in another dir OR
 202                          ** 2. if target was compiled without -g
 203                          ** We still want to show the assembly though!
 204                        */
 205                       addr = tuiGetBeginAsmAddress ();
 206                       tuiSetWinFocusTo (disassemWin);
 207                       layoutDef->displayMode = DISASSEM_WIN;
 208                       layoutDef->split = FALSE;
 209                       break;
 210                     case SRC_DISASSEM_COMMAND:
 211                       /* the previous layout was not showing
 212                          ** code. this can happen if there is no
 213                          ** source available:
 214                          ** 1. if the source file is in another dir OR
 215                          ** 2. if target was compiled without -g
 216                          ** We still want to show the assembly though!
 217                        */
 218                       addr = 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 = tuiGetBeginAsmAddress ();
 242                       if (winWithFocus != dataWin)
 243                         tuiSetWinFocusTo (disassemWin);
 244                       else
 245                         tuiSetWinFocusTo (dataWin);
 246                       layoutDef->displayMode = DISASSEM_WIN;
 247                       layoutDef->split = FALSE;
 248                       break;
 249                     default:
 250                       break;
 251                     }
 252                 }
 253               if (newWinWithFocus != (TuiWinInfoPtr) NULL)
 254                 tuiSetWinFocusTo (newWinWithFocus);
 255               /*
 256                  ** Now update the window content
 257                */
 258               if (!regsPopulate &&
 259                   (newLayout == SRC_DATA_COMMAND ||
 260                    newLayout == DISASSEM_DATA_COMMAND))
 261                 tuiDisplayAllData ();
 262
 263               tuiUpdateSourceWindowsWithAddr (addr);
 264             }
 265           if (regsPopulate)
 266             {
 267               layoutDef->regsDisplayType =
 268                 (regsDisplayType == TUI_UNDEFINED_REGS ?
 269                  TUI_GENERAL_REGS : regsDisplayType);
 270               tuiShowRegisters (layoutDef->regsDisplayType);
 271             }
 272         }
 273     }
 274   else
 275     status = TUI_FAILURE;
 276
 277   return status;
 278 }
 279
 280 /*
 281    ** tuiAddWinToLayout().
 282    **        Add the specified window to the layout in a logical way.
 283    **        This means setting up the most logical layout given the
 284    **        window to be added.
 285  */
 286 void
 287 tuiAddWinToLayout (TuiWinType type)
 288 {
 289   TuiLayoutType curLayout = currentLayout ();
 290
 291   switch (type)
 292     {
 293     case SRC_WIN:
 294       if (curLayout != SRC_COMMAND &&
 295           curLayout != SRC_DISASSEM_COMMAND &&
 296           curLayout != SRC_DATA_COMMAND)
 297         {
 298           clearSourceWindowsDetail ();
 299           if (curLayout == DISASSEM_DATA_COMMAND)
 300             showLayout (SRC_DATA_COMMAND);
 301           else
 302             showLayout (SRC_COMMAND);
 303         }
 304       break;
 305     case DISASSEM_WIN:
 306       if (curLayout != DISASSEM_COMMAND &&
 307           curLayout != SRC_DISASSEM_COMMAND &&
 308           curLayout != DISASSEM_DATA_COMMAND)
 309         {
 310           clearSourceWindowsDetail ();
 311           if (curLayout == SRC_DATA_COMMAND)
 312             showLayout (DISASSEM_DATA_COMMAND);
 313           else
 314             showLayout (DISASSEM_COMMAND);
 315         }
 316       break;
 317     case DATA_WIN:
 318       if (curLayout != SRC_DATA_COMMAND &&
 319           curLayout != DISASSEM_DATA_COMMAND)
 320         {
 321           if (curLayout == DISASSEM_COMMAND)
 322             showLayout (DISASSEM_DATA_COMMAND);
 323           else
 324             showLayout (SRC_DATA_COMMAND);
 325         }
 326       break;
 327     default:
 328       break;
 329     }
 330
 331   return;
 332 }                               /* tuiAddWinToLayout */
 333
 334
 335 /*
 336    ** tuiDefaultWinHeight().
 337    **        Answer the height of a window.  If it hasn't been created yet,
 338    **        answer what the height of a window would be based upon its
 339    **        type and the layout.
 340  */
 341 int
 342 tuiDefaultWinHeight (TuiWinType type, TuiLayoutType layout)
 343 {
 344   int h;
 345
 346   if (winList[type] != (TuiWinInfoPtr) NULL)
 347     h = winList[type]->generic.height;
 348   else
 349     {
 350       switch (layout)
 351         {
 352         case SRC_COMMAND:
 353         case DISASSEM_COMMAND:
 354           if (m_winPtrIsNull (cmdWin))
 355             h = termHeight () / 2;
 356           else
 357             h = termHeight () - cmdWin->generic.height;
 358           break;
 359         case SRC_DISASSEM_COMMAND:
 360         case SRC_DATA_COMMAND:
 361         case DISASSEM_DATA_COMMAND:
 362           if (m_winPtrIsNull (cmdWin))
 363             h = termHeight () / 3;
 364           else
 365             h = (termHeight () - cmdWin->generic.height) / 2;
 366           break;
 367         default:
 368           h = 0;
 369           break;
 370         }
 371     }
 372
 373   return h;
 374 }                               /* tuiDefaultWinHeight */
 375
 376
 377 /*
 378    ** tuiDefaultWinViewportHeight().
 379    **        Answer the height of a window.  If it hasn't been created yet,
 380    **        answer what the height of a window would be based upon its
 381    **        type and the layout.
 382  */
 383 int
 384 tuiDefaultWinViewportHeight (TuiWinType type, TuiLayoutType layout)
 385 {
 386   int h;
 387
 388   h = tuiDefaultWinHeight (type, layout);
 389
 390   if (winList[type] == cmdWin)
 391     h -= 1;
 392   else
 393     h -= 2;
 394
 395   return h;
 396 }                               /* tuiDefaultWinViewportHeight */
 397
 398
 399 /*
 400    ** _initialize_tuiLayout().
 401    **        Function to initialize gdb commands, for tui window layout
 402    **        manipulation.
 403  */
 404 void
 405 _initialize_tuiLayout (void)
 406 {
 407   add_com ("layout", class_tui, _tuiLayout_command,
 408            "Change the layout of windows.\n\
 409 Usage: layout prev | next | <layout_name> \n\
 410 Layout names are:\n\
 411    src   : Displays source and command windows.\n\
 412    asm   : Displays disassembly and command windows.\n\
 413    split : Displays source, disassembly and command windows.\n\
 414    regs  : Displays register window. If existing layout\n\
 415            is source/command or assembly/command, the \n\
 416            register window is displayed. If the\n\
 417            source/assembly/command (split) is displayed, \n\
 418            the register window is displayed with \n\
 419            the window that has current logical focus.\n");
 420   if (xdb_commands)
 421     {
 422       add_com ("td", class_tui, _tuiToggleLayout_command,
 423                "Toggle between Source/Command and Disassembly/Command layouts.\n");
 424       add_com ("ts", class_tui, _tuiToggleSplitLayout_command,
 425                "Toggle between Source/Command or Disassembly/Command and \n\
 426 Source/Disassembly/Command layouts.\n");
 427     }
 428 }
 429
 430
 431 /*************************
 432 ** STATIC LOCAL FUNCTIONS
 433 **************************/
 434
 435
 436 /*
 437    ** _tuiSetLayoutTo()
 438    **    Function to set the layout to SRC, ASM, SPLIT, NEXT, PREV, DATA, REGS,
 439    **        $REGS, $GREGS, $FREGS, $SREGS.
 440  */
 441 TuiStatus
 442 tui_set_layout (const char *layoutName)
 443 {
 444   TuiStatus status = TUI_SUCCESS;
 445
 446   if (layoutName != (char *) NULL)
 447     {
 448       register int i;
 449       register char *bufPtr;
 450       TuiLayoutType newLayout = UNDEFINED_LAYOUT;
 451       TuiRegisterDisplayType dpyType = TUI_UNDEFINED_REGS;
 452       TuiLayoutType curLayout = currentLayout ();
 453
 454       bufPtr = (char *) xstrdup (layoutName);
 455       for (i = 0; (i < strlen (layoutName)); i++)
 456         bufPtr[i] = toupper (bufPtr[i]);
 457
 458       /* First check for ambiguous input */
 459       if (strlen (bufPtr) <= 1 && (*bufPtr == 'S' || *bufPtr == '$'))
 460         {
 461           warning ("Ambiguous command input.\n");
 462           status = TUI_FAILURE;
 463         }
 464       else
 465         {
 466           if (subset_compare (bufPtr, "SRC"))
 467             newLayout = SRC_COMMAND;
 468           else if (subset_compare (bufPtr, "ASM"))
 469             newLayout = DISASSEM_COMMAND;
 470           else if (subset_compare (bufPtr, "SPLIT"))
 471             newLayout = SRC_DISASSEM_COMMAND;
 472           else if (subset_compare (bufPtr, "REGS") ||
 473                    subset_compare (bufPtr, TUI_GENERAL_SPECIAL_REGS_NAME) ||
 474                    subset_compare (bufPtr, TUI_GENERAL_REGS_NAME) ||
 475                    subset_compare (bufPtr, TUI_FLOAT_REGS_NAME) ||
 476                    subset_compare (bufPtr, TUI_SPECIAL_REGS_NAME))
 477             {
 478               if (curLayout == SRC_COMMAND || curLayout == SRC_DATA_COMMAND)
 479                 newLayout = SRC_DATA_COMMAND;
 480               else
 481                 newLayout = DISASSEM_DATA_COMMAND;
 482
 483 /* could ifdef out the following code. when compile with -z, there are null
 484    pointer references that cause a core dump if 'layout regs' is the first
 485    layout command issued by the user. HP has asked us to hook up this code
 486    - edie epstein
 487  */
 488               if (subset_compare (bufPtr, TUI_FLOAT_REGS_NAME))
 489                 {
 490                   if (dataWin->detail.dataDisplayInfo.regsDisplayType !=
 491                       TUI_SFLOAT_REGS &&
 492                       dataWin->detail.dataDisplayInfo.regsDisplayType !=
 493                       TUI_DFLOAT_REGS)
 494                     dpyType = TUI_SFLOAT_REGS;
 495                   else
 496                     dpyType =
 497                       dataWin->detail.dataDisplayInfo.regsDisplayType;
 498                 }
 499               else if (subset_compare (bufPtr,
 500                                       TUI_GENERAL_SPECIAL_REGS_NAME))
 501                 dpyType = TUI_GENERAL_AND_SPECIAL_REGS;
 502               else if (subset_compare (bufPtr, TUI_GENERAL_REGS_NAME))
 503                 dpyType = TUI_GENERAL_REGS;
 504               else if (subset_compare (bufPtr, TUI_SPECIAL_REGS_NAME))
 505                 dpyType = TUI_SPECIAL_REGS;
 506               else if (dataWin)
 507                 {
 508                   if (dataWin->detail.dataDisplayInfo.regsDisplayType !=
 509                       TUI_UNDEFINED_REGS)
 510                     dpyType =
 511                       dataWin->detail.dataDisplayInfo.regsDisplayType;
 512                   else
 513                     dpyType = TUI_GENERAL_REGS;
 514                 }
 515
 516 /* end of potential ifdef
 517  */
 518
 519 /* if ifdefed out code above, then assume that the user wishes to display the
 520    general purpose registers
 521  */
 522
 523 /*              dpyType = TUI_GENERAL_REGS;
 524  */
 525             }
 526           else if (subset_compare (bufPtr, "NEXT"))
 527             newLayout = _nextLayout ();
 528           else if (subset_compare (bufPtr, "PREV"))
 529             newLayout = _prevLayout ();
 530           else
 531             status = TUI_FAILURE;
 532           xfree (bufPtr);
 533
 534           tuiSetLayout (newLayout, dpyType);
 535         }
 536     }
 537   else
 538     status = TUI_FAILURE;
 539
 540   return status;
 541 }
 542
 543
 544 static CORE_ADDR
 545 _extractDisplayStartAddr (void)
 546 {
 547   TuiLayoutType curLayout = currentLayout ();
 548   CORE_ADDR addr;
 549   CORE_ADDR pc;
 550   struct symtab_and_line cursal = get_current_source_symtab_and_line ();
 551
 552   switch (curLayout)
 553     {
 554     case SRC_COMMAND:
 555     case SRC_DATA_COMMAND:
 556       find_line_pc (cursal.symtab,
 557                     srcWin->detail.sourceInfo.startLineOrAddr.lineNo,
 558                     &pc);
 559       addr = pc;
 560       break;
 561     case DISASSEM_COMMAND:
 562     case SRC_DISASSEM_COMMAND:
 563     case DISASSEM_DATA_COMMAND:
 564       addr = disassemWin->detail.sourceInfo.startLineOrAddr.addr;
 565       break;
 566     default:
 567       addr = 0;
 568       break;
 569     }
 570
 571   return addr;
 572 }                               /* _extractDisplayStartAddr */
 573
 574
 575 static void
 576 _tuiHandleXDBLayout (TuiLayoutDefPtr layoutDef)
 577 {
 578   if (layoutDef->split)
 579     {
 580       tuiSetLayout (SRC_DISASSEM_COMMAND, TUI_UNDEFINED_REGS);
 581       tuiSetWinFocusTo (winList[layoutDef->displayMode]);
 582     }
 583   else
 584     {
 585       if (layoutDef->displayMode == SRC_WIN)
 586         tuiSetLayout (SRC_COMMAND, TUI_UNDEFINED_REGS);
 587       else
 588         tuiSetLayout (DISASSEM_DATA_COMMAND, layoutDef->regsDisplayType);
 589     }
 590
 591
 592   return;
 593 }                               /* _tuiHandleXDBLayout */
 594
 595
 596 static void
 597 _tuiToggleLayout_command (char *arg, int fromTTY)
 598 {
 599   TuiLayoutDefPtr layoutDef = tuiLayoutDef ();
 600
 601   /* Make sure the curses mode is enabled.  */
 602   tui_enable ();
 603   if (layoutDef->displayMode == SRC_WIN)
 604     layoutDef->displayMode = DISASSEM_WIN;
 605   else
 606     layoutDef->displayMode = SRC_WIN;
 607
 608   if (!layoutDef->split)
 609     _tuiHandleXDBLayout (layoutDef);
 610
 611 }
 612
 613
 614 static void
 615 _tuiToggleSplitLayout_command (char *arg, int fromTTY)
 616 {
 617   TuiLayoutDefPtr layoutDef = tuiLayoutDef ();
 618
 619   /* Make sure the curses mode is enabled.  */
 620   tui_enable ();
 621   layoutDef->split = (!layoutDef->split);
 622   _tuiHandleXDBLayout (layoutDef);
 623
 624 }
 625
 626
 627 static void
 628 _tuiLayout_command (char *arg, int fromTTY)
 629 {
 630   /* Make sure the curses mode is enabled.  */
 631   tui_enable ();
 632
 633   /* Switch to the selected layout.  */
 634   if (tui_set_layout (arg) != TUI_SUCCESS)
 635     warning ("Invalid layout specified.\n%s", LAYOUT_USAGE);
 636
 637 }
 638
 639 /*
 640    ** _nextLayout().
 641    **        Answer the previous layout to cycle to.
 642  */
 643 static TuiLayoutType
 644 _nextLayout (void)
 645 {
 646   TuiLayoutType newLayout;
 647
 648   newLayout = currentLayout ();
 649   if (newLayout == UNDEFINED_LAYOUT)
 650     newLayout = SRC_COMMAND;
 651   else
 652     {
 653       newLayout++;
 654       if (newLayout == UNDEFINED_LAYOUT)
 655         newLayout = SRC_COMMAND;
 656     }
 657
 658   return newLayout;
 659 }                               /* _nextLayout */
 660
 661
 662 /*
 663    ** _prevLayout().
 664    **        Answer the next layout to cycle to.
 665  */
 666 static TuiLayoutType
 667 _prevLayout (void)
 668 {
 669   TuiLayoutType newLayout;
 670
 671   newLayout = currentLayout ();
 672   if (newLayout == SRC_COMMAND)
 673     newLayout = DISASSEM_DATA_COMMAND;
 674   else
 675     {
 676       newLayout--;
 677       if (newLayout == UNDEFINED_LAYOUT)
 678         newLayout = DISASSEM_DATA_COMMAND;
 679     }
 680
 681   return newLayout;
 682 }                               /* _prevLayout */
 683
 684
 685
 686 /*
 687    ** _makeCommandWindow().
 688  */
 689 static void
 690 _makeCommandWindow (TuiWinInfoPtr * winInfoPtr, int height, int originY)
 691 {
 692   _initAndMakeWin ((Opaque *) winInfoPtr,
 693                    CMD_WIN,
 694                    height,
 695                    termWidth (),
 696                    0,
 697                    originY,
 698                    DONT_BOX_WINDOW);
 699
 700   (*winInfoPtr)->canHighlight = FALSE;
 701
 702   return;
 703 }                               /* _makeCommandWindow */
 704
 705
 706 /*
 707    ** _makeSourceWindow().
 708  */
 709 static void
 710 _makeSourceWindow (TuiWinInfoPtr * winInfoPtr, int height, int originY)
 711 {
 712   _makeSourceOrDisassemWindow (winInfoPtr, SRC_WIN, height, originY);
 713
 714   return;
 715 }                               /* _makeSourceWindow */
 716
 717
 718 /*
 719    ** _makeDisassemWindow().
 720  */
 721 static void
 722 _makeDisassemWindow (TuiWinInfoPtr * winInfoPtr, int height, int originY)
 723 {
 724   _makeSourceOrDisassemWindow (winInfoPtr, DISASSEM_WIN, height, originY);
 725
 726   return;
 727 }                               /* _makeDisassemWindow */
 728
 729
 730 /*
 731    ** _makeDataWindow().
 732  */
 733 static void
 734 _makeDataWindow (TuiWinInfoPtr * winInfoPtr, int height, int originY)
 735 {
 736   _initAndMakeWin ((Opaque *) winInfoPtr,
 737                    DATA_WIN,
 738                    height,
 739                    termWidth (),
 740                    0,
 741                    originY,
 742                    BOX_WINDOW);
 743
 744   return;
 745 }                               /* _makeDataWindow */
 746
 747
 748
 749 /*
 750    **    _showSourceCommand().
 751    **        Show the Source/Command layout
 752  */
 753 static void
 754 _showSourceCommand (void)
 755 {
 756   _showSourceOrDisassemAndCommand (SRC_COMMAND);
 757
 758   return;
 759 }                               /* _showSourceCommand */
 760
 761
 762 /*
 763    **    _showDisassemCommand().
 764    **        Show the Dissassem/Command layout
 765  */
 766 static void
 767 _showDisassemCommand (void)
 768 {
 769   _showSourceOrDisassemAndCommand (DISASSEM_COMMAND);
 770
 771   return;
 772 }                               /* _showDisassemCommand */
 773
 774
 775 /*
 776    **    _showSourceDisassemCommand().
 777    **        Show the Source/Disassem/Command layout
 778  */
 779 static void
 780 _showSourceDisassemCommand (void)
 781 {
 782   if (currentLayout () != SRC_DISASSEM_COMMAND)
 783     {
 784       int cmdHeight, srcHeight, asmHeight;
 785
 786       if (m_winPtrNotNull (cmdWin))
 787         cmdHeight = cmdWin->generic.height;
 788       else
 789         cmdHeight = termHeight () / 3;
 790
 791       srcHeight = (termHeight () - cmdHeight) / 2;
 792       asmHeight = termHeight () - (srcHeight + cmdHeight);
 793
 794       if (m_winPtrIsNull (srcWin))
 795         _makeSourceWindow (&srcWin, srcHeight, 0);
 796       else
 797         {
 798           _initGenWinInfo (&srcWin->generic,
 799                            srcWin->generic.type,
 800                            srcHeight,
 801                            srcWin->generic.width,
 802                            srcWin->detail.sourceInfo.executionInfo->width,
 803                            0);
 804           srcWin->canHighlight = TRUE;
 805           _initGenWinInfo (srcWin->detail.sourceInfo.executionInfo,
 806                            EXEC_INFO_WIN,
 807                            srcHeight,
 808                            3,
 809                            0,
 810                            0);
 811           m_beVisible (srcWin);
 812           m_beVisible (srcWin->detail.sourceInfo.executionInfo);
 813           srcWin->detail.sourceInfo.hasLocator = FALSE;;
 814         }
 815       if (m_winPtrNotNull (srcWin))
 816         {
 817           TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
 818
 819           tuiShowSourceContent (srcWin);
 820           if (m_winPtrIsNull (disassemWin))
 821             {
 822               _makeDisassemWindow (&disassemWin, asmHeight, srcHeight - 1);
 823               _initAndMakeWin ((Opaque *) & locator,
 824                                LOCATOR_WIN,
 825                                2 /* 1 */ ,
 826                                termWidth (),
 827                                0,
 828                                (srcHeight + asmHeight) - 1,
 829                                DONT_BOX_WINDOW);
 830             }
 831           else
 832             {
 833               _initGenWinInfo (locator,
 834                                LOCATOR_WIN,
 835                                2 /* 1 */ ,
 836                                termWidth (),
 837                                0,
 838                                (srcHeight + asmHeight) - 1);
 839               disassemWin->detail.sourceInfo.hasLocator = TRUE;
 840               _initGenWinInfo (
 841                                 &disassemWin->generic,
 842                                 disassemWin->generic.type,
 843                                 asmHeight,
 844                                 disassemWin->generic.width,
 845                         disassemWin->detail.sourceInfo.executionInfo->width,
 846                                 srcHeight - 1);
 847               _initGenWinInfo (disassemWin->detail.sourceInfo.executionInfo,
 848                                EXEC_INFO_WIN,
 849                                asmHeight,
 850                                3,
 851                                0,
 852                                srcHeight - 1);
 853               disassemWin->canHighlight = TRUE;
 854               m_beVisible (disassemWin);
 855               m_beVisible (disassemWin->detail.sourceInfo.executionInfo);
 856             }
 857           if (m_winPtrNotNull (disassemWin))
 858             {
 859               srcWin->detail.sourceInfo.hasLocator = FALSE;
 860               disassemWin->detail.sourceInfo.hasLocator = TRUE;
 861               m_beVisible (locator);
 862               tuiShowLocatorContent ();
 863               tuiShowSourceContent (disassemWin);
 864
 865               if (m_winPtrIsNull (cmdWin))
 866                 _makeCommandWindow (&cmdWin,
 867                                     cmdHeight,
 868                                     termHeight () - cmdHeight);
 869               else
 870                 {
 871                   _initGenWinInfo (&cmdWin->generic,
 872                                    cmdWin->generic.type,
 873                                    cmdWin->generic.height,
 874                                    cmdWin->generic.width,
 875                                    0,
 876                                    cmdWin->generic.origin.y);
 877                   cmdWin->canHighlight = FALSE;
 878                   m_beVisible (cmdWin);
 879                 }
 880               if (m_winPtrNotNull (cmdWin))
 881                 tuiRefreshWin (&cmdWin->generic);
 882             }
 883         }
 884       setCurrentLayoutTo (SRC_DISASSEM_COMMAND);
 885     }
 886
 887   return;
 888 }                               /* _showSourceDisassemCommand */
 889
 890
 891 /*
 892    **    _showData().
 893    **        Show the Source/Data/Command or the Dissassembly/Data/Command layout
 894  */
 895 static void
 896 _showData (TuiLayoutType newLayout)
 897 {
 898   int totalHeight = (termHeight () - cmdWin->generic.height);
 899   int srcHeight, dataHeight;
 900   TuiWinType winType;
 901   TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
 902
 903
 904   dataHeight = totalHeight / 2;
 905   srcHeight = totalHeight - dataHeight;
 906   m_allBeInvisible ();
 907   m_beInvisible (locator);
 908   _makeDataWindow (&dataWin, dataHeight, 0);
 909   dataWin->canHighlight = TRUE;
 910   if (newLayout == SRC_DATA_COMMAND)
 911     winType = SRC_WIN;
 912   else
 913     winType = DISASSEM_WIN;
 914   if (m_winPtrIsNull (winList[winType]))
 915     {
 916       if (winType == SRC_WIN)
 917         _makeSourceWindow (&winList[winType], srcHeight, dataHeight - 1);
 918       else
 919         _makeDisassemWindow (&winList[winType], srcHeight, dataHeight - 1);
 920       _initAndMakeWin ((Opaque *) & locator,
 921                        LOCATOR_WIN,
 922                        2 /* 1 */ ,
 923                        termWidth (),
 924                        0,
 925                        totalHeight - 1,
 926                        DONT_BOX_WINDOW);
 927     }
 928   else
 929     {
 930       _initGenWinInfo (&winList[winType]->generic,
 931                        winList[winType]->generic.type,
 932                        srcHeight,
 933                        winList[winType]->generic.width,
 934                    winList[winType]->detail.sourceInfo.executionInfo->width,
 935                        dataHeight - 1);
 936       _initGenWinInfo (winList[winType]->detail.sourceInfo.executionInfo,
 937                        EXEC_INFO_WIN,
 938                        srcHeight,
 939                        3,
 940                        0,
 941                        dataHeight - 1);
 942       m_beVisible (winList[winType]);
 943       m_beVisible (winList[winType]->detail.sourceInfo.executionInfo);
 944       _initGenWinInfo (locator,
 945                        LOCATOR_WIN,
 946                        2 /* 1 */ ,
 947                        termWidth (),
 948                        0,
 949                        totalHeight - 1);
 950     }
 951   winList[winType]->detail.sourceInfo.hasLocator = TRUE;
 952   m_beVisible (locator);
 953   tuiShowLocatorContent ();
 954   addToSourceWindows (winList[winType]);
 955   setCurrentLayoutTo (newLayout);
 956
 957   return;
 958 }                               /* _showData */
 959
 960 /*
 961    ** _initGenWinInfo().
 962  */
 963 static void
 964 _initGenWinInfo (TuiGenWinInfoPtr winInfo, TuiWinType type,
 965                  int height, int width, int originX, int originY)
 966 {
 967   int h = height;
 968
 969   winInfo->type = type;
 970   winInfo->width = width;
 971   winInfo->height = h;
 972   if (h > 1)
 973     {
 974       winInfo->viewportHeight = h - 1;
 975       if (winInfo->type != CMD_WIN)
 976         winInfo->viewportHeight--;
 977     }
 978   else
 979     winInfo->viewportHeight = 1;
 980   winInfo->origin.x = originX;
 981   winInfo->origin.y = originY;
 982
 983   return;
 984 }                               /* _initGenWinInfo */
 985
 986 /*
 987    ** _initAndMakeWin().
 988  */
 989 static void
 990 _initAndMakeWin (Opaque * winInfoPtr, TuiWinType winType,
 991                  int height, int width, int originX, int originY, int boxIt)
 992 {
 993   Opaque opaqueWinInfo = *winInfoPtr;
 994   TuiGenWinInfoPtr generic;
 995
 996   if (opaqueWinInfo == (Opaque) NULL)
 997     {
 998       if (m_winIsAuxillary (winType))
 999         opaqueWinInfo = (Opaque) allocGenericWinInfo ();
1000       else
1001         opaqueWinInfo = (Opaque) allocWinInfo (winType);
1002     }
1003   if (m_winIsAuxillary (winType))
1004     generic = (TuiGenWinInfoPtr) opaqueWinInfo;
1005   else
1006     generic = &((TuiWinInfoPtr) opaqueWinInfo)->generic;
1007
1008   if (opaqueWinInfo != (Opaque) NULL)
1009     {
1010       _initGenWinInfo (generic, winType, height, width, originX, originY);
1011       if (!m_winIsAuxillary (winType))
1012         {
1013           if (generic->type == CMD_WIN)
1014             ((TuiWinInfoPtr) opaqueWinInfo)->canHighlight = FALSE;
1015           else
1016             ((TuiWinInfoPtr) opaqueWinInfo)->canHighlight = TRUE;
1017         }
1018       makeWindow (generic, boxIt);
1019     }
1020   *winInfoPtr = opaqueWinInfo;
1021 }
1022
1023
1024 /*
1025    ** _makeSourceOrDisassemWindow().
1026  */
1027 static void
1028 _makeSourceOrDisassemWindow (TuiWinInfoPtr * winInfoPtr, TuiWinType type,
1029                              int height, int originY)
1030 {
1031   TuiGenWinInfoPtr executionInfo = (TuiGenWinInfoPtr) NULL;
1032
1033   /*
1034      ** Create the exeuction info window.
1035    */
1036   if (type == SRC_WIN)
1037     executionInfo = sourceExecInfoWinPtr ();
1038   else
1039     executionInfo = disassemExecInfoWinPtr ();
1040   _initAndMakeWin ((Opaque *) & executionInfo,
1041                    EXEC_INFO_WIN,
1042                    height,
1043                    3,
1044                    0,
1045                    originY,
1046                    DONT_BOX_WINDOW);
1047   /*
1048      ** Now create the source window.
1049    */
1050   _initAndMakeWin ((Opaque *) winInfoPtr,
1051                    type,
1052                    height,
1053                    termWidth () - executionInfo->width,
1054                    executionInfo->width,
1055                    originY,
1056                    BOX_WINDOW);
1057
1058   (*winInfoPtr)->detail.sourceInfo.executionInfo = executionInfo;
1059
1060   return;
1061 }                               /* _makeSourceOrDisassemWindow */
1062
1063
1064 /*
1065    **    _showSourceOrDisassemAndCommand().
1066    **        Show the Source/Command or the Disassem layout
1067  */
1068 static void
1069 _showSourceOrDisassemAndCommand (TuiLayoutType layoutType)
1070 {
1071   if (currentLayout () != layoutType)
1072     {
1073       TuiWinInfoPtr *winInfoPtr;
1074       int srcHeight, cmdHeight;
1075       TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
1076
1077       if (m_winPtrNotNull (cmdWin))
1078         cmdHeight = cmdWin->generic.height;
1079       else
1080         cmdHeight = termHeight () / 3;
1081       srcHeight = termHeight () - cmdHeight;
1082
1083
1084       if (layoutType == SRC_COMMAND)
1085         winInfoPtr = &srcWin;
1086       else
1087         winInfoPtr = &disassemWin;
1088
1089       if (m_winPtrIsNull (*winInfoPtr))
1090         {
1091           if (layoutType == SRC_COMMAND)
1092             _makeSourceWindow (winInfoPtr, srcHeight - 1, 0);
1093           else
1094             _makeDisassemWindow (winInfoPtr, srcHeight - 1, 0);
1095           _initAndMakeWin ((Opaque *) & locator,
1096                            LOCATOR_WIN,
1097                            2 /* 1 */ ,
1098                            termWidth (),
1099                            0,
1100                            srcHeight - 1,
1101                            DONT_BOX_WINDOW);
1102         }
1103       else
1104         {
1105           _initGenWinInfo (locator,
1106                            LOCATOR_WIN,
1107                            2 /* 1 */ ,
1108                            termWidth (),
1109                            0,
1110                            srcHeight - 1);
1111           (*winInfoPtr)->detail.sourceInfo.hasLocator = TRUE;
1112           _initGenWinInfo (
1113                             &(*winInfoPtr)->generic,
1114                             (*winInfoPtr)->generic.type,
1115                             srcHeight - 1,
1116                             (*winInfoPtr)->generic.width,
1117                       (*winInfoPtr)->detail.sourceInfo.executionInfo->width,
1118                             0);
1119           _initGenWinInfo ((*winInfoPtr)->detail.sourceInfo.executionInfo,
1120                            EXEC_INFO_WIN,
1121                            srcHeight - 1,
1122                            3,
1123                            0,
1124                            0);
1125           (*winInfoPtr)->canHighlight = TRUE;
1126           m_beVisible (*winInfoPtr);
1127           m_beVisible ((*winInfoPtr)->detail.sourceInfo.executionInfo);
1128         }
1129       if (m_winPtrNotNull (*winInfoPtr))
1130         {
1131           (*winInfoPtr)->detail.sourceInfo.hasLocator = TRUE;
1132           m_beVisible (locator);
1133           tuiShowLocatorContent ();
1134           tuiShowSourceContent (*winInfoPtr);
1135
1136           if (m_winPtrIsNull (cmdWin))
1137             {
1138               _makeCommandWindow (&cmdWin, cmdHeight, srcHeight);
1139               tuiRefreshWin (&cmdWin->generic);
1140             }
1141           else
1142             {
1143               _initGenWinInfo (&cmdWin->generic,
1144                                cmdWin->generic.type,
1145                                cmdWin->generic.height,
1146                                cmdWin->generic.width,
1147                                cmdWin->generic.origin.x,
1148                                cmdWin->generic.origin.y);
1149               cmdWin->canHighlight = FALSE;
1150               m_beVisible (cmdWin);
1151             }
1152         }
1153       setCurrentLayoutTo (layoutType);
1154     }
1155
1156   return;
1157 }                               /* _showSourceOrDisassemAndCommand */