gdb/tui/tui-layout.c

   1 /* TUI layout window management.
   2
   3    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
   4    Foundation, 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., 51 Franklin Street, Fifth Floor,
  23    Boston, MA 02110-1301, USA.  */
  24
  25 #include "defs.h"
  26 #include "command.h"
  27 #include "symtab.h"
  28 #include "frame.h"
  29 #include "source.h"
  30 #include <ctype.h>
  31
  32 #include "tui/tui.h"
  33 #include "tui/tui-data.h"
  34 #include "tui/tui-windata.h"
  35 #include "tui/tui-wingeneral.h"
  36 #include "tui/tui-stack.h"
  37 #include "tui/tui-regs.h"
  38 #include "tui/tui-win.h"
  39 #include "tui/tui-winsource.h"
  40 #include "tui/tui-disasm.h"
  41
  42 #include "gdb_string.h"
  43 #include "gdb_curses.h"
  44
  45 /*******************************
  46 ** Static Local Decls
  47 ********************************/
  48 static void show_layout (enum tui_layout_type);
  49 static void init_gen_win_info (struct tui_gen_win_info *, enum tui_win_type, int, int, int, int);
  50 static void *init_and_make_win (void *, enum tui_win_type, int, int, int, int, int);
  51 static void show_source_or_disasm_and_command (enum tui_layout_type);
  52 static void make_source_or_disasm_window (struct tui_win_info * *, enum tui_win_type, int, int);
  53 static void make_command_window (struct tui_win_info * *, int, int);
  54 static void make_source_window (struct tui_win_info * *, int, int);
  55 static void make_disasm_window (struct tui_win_info * *, int, int);
  56 static void make_data_window (struct tui_win_info * *, int, int);
  57 static void show_source_command (void);
  58 static void show_disasm_command (void);
  59 static void show_source_disasm_command (void);
  60 static void show_data (enum tui_layout_type);
  61 static enum tui_layout_type next_layout (void);
  62 static enum tui_layout_type prev_layout (void);
  63 static void tui_layout_command (char *, int);
  64 static void tui_toggle_layout_command (char *, int);
  65 static void tui_toggle_split_layout_command (char *, int);
  66 static CORE_ADDR extract_display_start_addr (void);
  67 static void tui_handle_xdb_layout (struct tui_layout_def *);
  68
  69
  70 /***************************************
  71 ** DEFINITIONS
  72 ***************************************/
  73
  74 #define LAYOUT_USAGE     "Usage: layout prev | next | <layout_name> \n"
  75
  76 /* Show the screen layout defined.  */
  77 static void
  78 show_layout (enum tui_layout_type layout)
  79 {
  80   enum tui_layout_type cur_layout = tui_current_layout ();
  81
  82   if (layout != cur_layout)
  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       tui_free_all_source_wins_content ();
  90       tui_clear_source_windows ();
  91       if (layout == SRC_DATA_COMMAND || layout == DISASSEM_DATA_COMMAND)
  92         {
  93           show_data (layout);
  94           tui_refresh_all (tui_win_list);
  95         }
  96       else
  97         {
  98           /* First make the current layout be invisible */
  99           tui_make_all_invisible ();
 100           tui_make_invisible (tui_locator_win_info_ptr ());
 101
 102           switch (layout)
 103             {
 104               /* Now show the new layout */
 105             case SRC_COMMAND:
 106               show_source_command ();
 107               tui_add_to_source_windows (TUI_SRC_WIN);
 108               break;
 109             case DISASSEM_COMMAND:
 110               show_disasm_command ();
 111               tui_add_to_source_windows (TUI_DISASM_WIN);
 112               break;
 113             case SRC_DISASSEM_COMMAND:
 114               show_source_disasm_command ();
 115               tui_add_to_source_windows (TUI_SRC_WIN);
 116               tui_add_to_source_windows (TUI_DISASM_WIN);
 117               break;
 118             default:
 119               break;
 120             }
 121         }
 122     }
 123 }
 124
 125
 126 /* Function to set the layout to SRC_COMMAND, DISASSEM_COMMAND,
 127    SRC_DISASSEM_COMMAND, SRC_DATA_COMMAND, or DISASSEM_DATA_COMMAND.
 128    If the layout is SRC_DATA_COMMAND, DISASSEM_DATA_COMMAND, or
 129    UNDEFINED_LAYOUT, then the data window is populated according to
 130    regs_display_type.  */
 131 enum tui_status
 132 tui_set_layout (enum tui_layout_type layout_type,
 133                 enum tui_register_display_type regs_display_type)
 134 {
 135   enum tui_status status = TUI_SUCCESS;
 136
 137   if (layout_type != UNDEFINED_LAYOUT || regs_display_type != TUI_UNDEFINED_REGS)
 138     {
 139       enum tui_layout_type cur_layout = tui_current_layout (), new_layout = UNDEFINED_LAYOUT;
 140       int regs_populate = FALSE;
 141       CORE_ADDR addr = extract_display_start_addr ();
 142       struct tui_win_info * new_win_with_focus = (struct tui_win_info *) NULL;
 143       struct tui_win_info * win_with_focus = tui_win_with_focus ();
 144       struct tui_layout_def * layout_def = tui_layout_def ();
 145
 146
 147       if (layout_type == UNDEFINED_LAYOUT &&
 148           regs_display_type != TUI_UNDEFINED_REGS)
 149         {
 150           if (cur_layout == SRC_DISASSEM_COMMAND)
 151             new_layout = DISASSEM_DATA_COMMAND;
 152           else if (cur_layout == SRC_COMMAND || cur_layout == SRC_DATA_COMMAND)
 153             new_layout = SRC_DATA_COMMAND;
 154           else if (cur_layout == DISASSEM_COMMAND ||
 155                    cur_layout == DISASSEM_DATA_COMMAND)
 156             new_layout = DISASSEM_DATA_COMMAND;
 157         }
 158       else
 159         new_layout = layout_type;
 160
 161       regs_populate = (new_layout == SRC_DATA_COMMAND ||
 162                       new_layout == DISASSEM_DATA_COMMAND ||
 163                       regs_display_type != TUI_UNDEFINED_REGS);
 164       if (new_layout != cur_layout || regs_display_type != TUI_UNDEFINED_REGS)
 165         {
 166           if (new_layout != cur_layout)
 167             {
 168               show_layout (new_layout);
 169               /*
 170                  ** Now determine where focus should be
 171                */
 172               if (win_with_focus != TUI_CMD_WIN)
 173                 {
 174                   switch (new_layout)
 175                     {
 176                     case SRC_COMMAND:
 177                       tui_set_win_focus_to (TUI_SRC_WIN);
 178                       layout_def->display_mode = SRC_WIN;
 179                       layout_def->split = FALSE;
 180                       break;
 181                     case DISASSEM_COMMAND:
 182                       /* the previous layout was not showing
 183                          ** code. this can happen if there is no
 184                          ** source available:
 185                          ** 1. if the source file is in another dir OR
 186                          ** 2. if target was compiled without -g
 187                          ** We still want to show the assembly though!
 188                        */
 189                       addr = tui_get_begin_asm_address ();
 190                       tui_set_win_focus_to (TUI_DISASM_WIN);
 191                       layout_def->display_mode = DISASSEM_WIN;
 192                       layout_def->split = FALSE;
 193                       break;
 194                     case SRC_DISASSEM_COMMAND:
 195                       /* the previous layout was not showing
 196                          ** code. this can happen if there is no
 197                          ** source available:
 198                          ** 1. if the source file is in another dir OR
 199                          ** 2. if target was compiled without -g
 200                          ** We still want to show the assembly though!
 201                        */
 202                       addr = tui_get_begin_asm_address ();
 203                       if (win_with_focus == TUI_SRC_WIN)
 204                         tui_set_win_focus_to (TUI_SRC_WIN);
 205                       else
 206                         tui_set_win_focus_to (TUI_DISASM_WIN);
 207                       layout_def->split = TRUE;
 208                       break;
 209                     case SRC_DATA_COMMAND:
 210                       if (win_with_focus != TUI_DATA_WIN)
 211                         tui_set_win_focus_to (TUI_SRC_WIN);
 212                       else
 213                         tui_set_win_focus_to (TUI_DATA_WIN);
 214                       layout_def->display_mode = SRC_WIN;
 215                       layout_def->split = FALSE;
 216                       break;
 217                     case DISASSEM_DATA_COMMAND:
 218                       /* the previous layout was not showing
 219                          ** code. this can happen if there is no
 220                          ** source available:
 221                          ** 1. if the source file is in another dir OR
 222                          ** 2. if target was compiled without -g
 223                          ** We still want to show the assembly though!
 224                        */
 225                       addr = tui_get_begin_asm_address ();
 226                       if (win_with_focus != TUI_DATA_WIN)
 227                         tui_set_win_focus_to (TUI_DISASM_WIN);
 228                       else
 229                         tui_set_win_focus_to (TUI_DATA_WIN);
 230                       layout_def->display_mode = DISASSEM_WIN;
 231                       layout_def->split = FALSE;
 232                       break;
 233                     default:
 234                       break;
 235                     }
 236                 }
 237               if (new_win_with_focus != (struct tui_win_info *) NULL)
 238                 tui_set_win_focus_to (new_win_with_focus);
 239               /*
 240                  ** Now update the window content
 241                */
 242               if (!regs_populate &&
 243                   (new_layout == SRC_DATA_COMMAND ||
 244                    new_layout == DISASSEM_DATA_COMMAND))
 245                 tui_display_all_data ();
 246
 247               tui_update_source_windows_with_addr (addr);
 248             }
 249           if (regs_populate)
 250             {
 251               tui_show_registers (TUI_DATA_WIN->detail.data_display_info.current_group);
 252             }
 253         }
 254     }
 255   else
 256     status = TUI_FAILURE;
 257
 258   return status;
 259 }
 260
 261 /* Add the specified window to the layout in a logical way.  This
 262    means setting up the most logical layout given the window to be
 263    added.  */
 264 void
 265 tui_add_win_to_layout (enum tui_win_type type)
 266 {
 267   enum tui_layout_type cur_layout = tui_current_layout ();
 268
 269   switch (type)
 270     {
 271     case SRC_WIN:
 272       if (cur_layout != SRC_COMMAND &&
 273           cur_layout != SRC_DISASSEM_COMMAND &&
 274           cur_layout != SRC_DATA_COMMAND)
 275         {
 276           tui_clear_source_windows_detail ();
 277           if (cur_layout == DISASSEM_DATA_COMMAND)
 278             show_layout (SRC_DATA_COMMAND);
 279           else
 280             show_layout (SRC_COMMAND);
 281         }
 282       break;
 283     case DISASSEM_WIN:
 284       if (cur_layout != DISASSEM_COMMAND &&
 285           cur_layout != SRC_DISASSEM_COMMAND &&
 286           cur_layout != DISASSEM_DATA_COMMAND)
 287         {
 288           tui_clear_source_windows_detail ();
 289           if (cur_layout == SRC_DATA_COMMAND)
 290             show_layout (DISASSEM_DATA_COMMAND);
 291           else
 292             show_layout (DISASSEM_COMMAND);
 293         }
 294       break;
 295     case DATA_WIN:
 296       if (cur_layout != SRC_DATA_COMMAND &&
 297           cur_layout != DISASSEM_DATA_COMMAND)
 298         {
 299           if (cur_layout == DISASSEM_COMMAND)
 300             show_layout (DISASSEM_DATA_COMMAND);
 301           else
 302             show_layout (SRC_DATA_COMMAND);
 303         }
 304       break;
 305     default:
 306       break;
 307     }
 308 }
 309
 310
 311 /* Answer the height of a window.  If it hasn't been created yet,
 312    answer what the height of a window would be based upon its type and
 313    the layout.  */
 314 int
 315 tui_default_win_height (enum tui_win_type type, enum tui_layout_type layout)
 316 {
 317   int h;
 318
 319   if (tui_win_list[type] != (struct tui_win_info *) NULL)
 320     h = tui_win_list[type]->generic.height;
 321   else
 322     {
 323       switch (layout)
 324         {
 325         case SRC_COMMAND:
 326         case DISASSEM_COMMAND:
 327           if (TUI_CMD_WIN == NULL)
 328             h = tui_term_height () / 2;
 329           else
 330             h = tui_term_height () - TUI_CMD_WIN->generic.height;
 331           break;
 332         case SRC_DISASSEM_COMMAND:
 333         case SRC_DATA_COMMAND:
 334         case DISASSEM_DATA_COMMAND:
 335           if (TUI_CMD_WIN == NULL)
 336             h = tui_term_height () / 3;
 337           else
 338             h = (tui_term_height () - TUI_CMD_WIN->generic.height) / 2;
 339           break;
 340         default:
 341           h = 0;
 342           break;
 343         }
 344     }
 345
 346   return h;
 347 }
 348
 349
 350 /* Answer the height of a window.  If it hasn't been created yet,
 351    answer what the height of a window would be based upon its type and
 352    the layout.  */
 353 int
 354 tui_default_win_viewport_height (enum tui_win_type type,
 355                                  enum tui_layout_type layout)
 356 {
 357   int h;
 358
 359   h = tui_default_win_height (type, layout);
 360
 361   if (tui_win_list[type] == TUI_CMD_WIN)
 362     h -= 1;
 363   else
 364     h -= 2;
 365
 366   return h;
 367 }
 368
 369
 370 /* Function to initialize gdb commands, for tui window layout
 371    manipulation.  */
 372 void
 373 _initialize_tui_layout (void)
 374 {
 375   add_com ("layout", class_tui, tui_layout_command, _("\
 376 Change the layout of windows.\n\
 377 Usage: layout prev | next | <layout_name> \n\
 378 Layout names are:\n\
 379    src   : Displays source and command windows.\n\
 380    asm   : Displays disassembly and command windows.\n\
 381    split : Displays source, disassembly and command windows.\n\
 382    regs  : Displays register window. If existing layout\n\
 383            is source/command or assembly/command, the \n\
 384            register window is displayed. If the\n\
 385            source/assembly/command (split) is displayed, \n\
 386            the register window is displayed with \n\
 387            the window that has current logical focus.\n"));
 388   if (xdb_commands)
 389     {
 390       add_com ("td", class_tui, tui_toggle_layout_command, _("\
 391 Toggle between Source/Command and Disassembly/Command layouts.\n"));
 392       add_com ("ts", class_tui, tui_toggle_split_layout_command, _("\
 393 Toggle between Source/Command or Disassembly/Command and \n\
 394 Source/Disassembly/Command layouts.\n"));
 395     }
 396 }
 397
 398
 399 /*************************
 400 ** STATIC LOCAL FUNCTIONS
 401 **************************/
 402
 403
 404 /* Function to set the layout to SRC, ASM, SPLIT, NEXT, PREV, DATA,
 405    REGS, $REGS, $GREGS, $FREGS, $SREGS.  */
 406 enum tui_status
 407 tui_set_layout_for_display_command (const char *layout_name)
 408 {
 409   enum tui_status status = TUI_SUCCESS;
 410
 411   if (layout_name != (char *) NULL)
 412     {
 413       int i;
 414       char *buf_ptr;
 415       enum tui_layout_type new_layout = UNDEFINED_LAYOUT;
 416       enum tui_register_display_type dpy_type = TUI_UNDEFINED_REGS;
 417       enum tui_layout_type cur_layout = tui_current_layout ();
 418
 419       buf_ptr = (char *) xstrdup (layout_name);
 420       for (i = 0; (i < strlen (layout_name)); i++)
 421         buf_ptr[i] = toupper (buf_ptr[i]);
 422
 423       /* First check for ambiguous input */
 424       if (strlen (buf_ptr) <= 1 && (*buf_ptr == 'S' || *buf_ptr == '$'))
 425         {
 426           warning (_("Ambiguous command input."));
 427           status = TUI_FAILURE;
 428         }
 429       else
 430         {
 431           if (subset_compare (buf_ptr, "SRC"))
 432             new_layout = SRC_COMMAND;
 433           else if (subset_compare (buf_ptr, "ASM"))
 434             new_layout = DISASSEM_COMMAND;
 435           else if (subset_compare (buf_ptr, "SPLIT"))
 436             new_layout = SRC_DISASSEM_COMMAND;
 437           else if (subset_compare (buf_ptr, "REGS") ||
 438                    subset_compare (buf_ptr, TUI_GENERAL_SPECIAL_REGS_NAME) ||
 439                    subset_compare (buf_ptr, TUI_GENERAL_REGS_NAME) ||
 440                    subset_compare (buf_ptr, TUI_FLOAT_REGS_NAME) ||
 441                    subset_compare (buf_ptr, TUI_SPECIAL_REGS_NAME))
 442             {
 443               if (cur_layout == SRC_COMMAND || cur_layout == SRC_DATA_COMMAND)
 444                 new_layout = SRC_DATA_COMMAND;
 445               else
 446                 new_layout = DISASSEM_DATA_COMMAND;
 447
 448 /* could ifdef out the following code. when compile with -z, there are null
 449    pointer references that cause a core dump if 'layout regs' is the first
 450    layout command issued by the user. HP has asked us to hook up this code
 451    - edie epstein
 452  */
 453               if (subset_compare (buf_ptr, TUI_FLOAT_REGS_NAME))
 454                 {
 455                   if (TUI_DATA_WIN->detail.data_display_info.regs_display_type !=
 456                       TUI_SFLOAT_REGS &&
 457                       TUI_DATA_WIN->detail.data_display_info.regs_display_type !=
 458                       TUI_DFLOAT_REGS)
 459                     dpy_type = TUI_SFLOAT_REGS;
 460                   else
 461                     dpy_type =
 462                       TUI_DATA_WIN->detail.data_display_info.regs_display_type;
 463                 }
 464               else if (subset_compare (buf_ptr,
 465                                       TUI_GENERAL_SPECIAL_REGS_NAME))
 466                 dpy_type = TUI_GENERAL_AND_SPECIAL_REGS;
 467               else if (subset_compare (buf_ptr, TUI_GENERAL_REGS_NAME))
 468                 dpy_type = TUI_GENERAL_REGS;
 469               else if (subset_compare (buf_ptr, TUI_SPECIAL_REGS_NAME))
 470                 dpy_type = TUI_SPECIAL_REGS;
 471               else if (TUI_DATA_WIN)
 472                 {
 473                   if (TUI_DATA_WIN->detail.data_display_info.regs_display_type !=
 474                       TUI_UNDEFINED_REGS)
 475                     dpy_type =
 476                       TUI_DATA_WIN->detail.data_display_info.regs_display_type;
 477                   else
 478                     dpy_type = TUI_GENERAL_REGS;
 479                 }
 480
 481 /* end of potential ifdef
 482  */
 483
 484 /* if ifdefed out code above, then assume that the user wishes to display the
 485    general purpose registers
 486  */
 487
 488 /*              dpy_type = TUI_GENERAL_REGS;
 489  */
 490             }
 491           else if (subset_compare (buf_ptr, "NEXT"))
 492             new_layout = next_layout ();
 493           else if (subset_compare (buf_ptr, "PREV"))
 494             new_layout = prev_layout ();
 495           else
 496             status = TUI_FAILURE;
 497           xfree (buf_ptr);
 498
 499           tui_set_layout (new_layout, dpy_type);
 500         }
 501     }
 502   else
 503     status = TUI_FAILURE;
 504
 505   return status;
 506 }
 507
 508
 509 static CORE_ADDR
 510 extract_display_start_addr (void)
 511 {
 512   enum tui_layout_type cur_layout = tui_current_layout ();
 513   CORE_ADDR addr;
 514   CORE_ADDR pc;
 515   struct symtab_and_line cursal = get_current_source_symtab_and_line ();
 516
 517   switch (cur_layout)
 518     {
 519     case SRC_COMMAND:
 520     case SRC_DATA_COMMAND:
 521       find_line_pc (cursal.symtab,
 522                     TUI_SRC_WIN->detail.source_info.start_line_or_addr.u.line_no,
 523                     &pc);
 524       addr = pc;
 525       break;
 526     case DISASSEM_COMMAND:
 527     case SRC_DISASSEM_COMMAND:
 528     case DISASSEM_DATA_COMMAND:
 529       addr = TUI_DISASM_WIN->detail.source_info.start_line_or_addr.u.addr;
 530       break;
 531     default:
 532       addr = 0;
 533       break;
 534     }
 535
 536   return addr;
 537 }
 538
 539
 540 static void
 541 tui_handle_xdb_layout (struct tui_layout_def * layout_def)
 542 {
 543   if (layout_def->split)
 544     {
 545       tui_set_layout (SRC_DISASSEM_COMMAND, TUI_UNDEFINED_REGS);
 546       tui_set_win_focus_to (tui_win_list[layout_def->display_mode]);
 547     }
 548   else
 549     {
 550       if (layout_def->display_mode == SRC_WIN)
 551         tui_set_layout (SRC_COMMAND, TUI_UNDEFINED_REGS);
 552       else
 553         tui_set_layout (DISASSEM_DATA_COMMAND, layout_def->regs_display_type);
 554     }
 555 }
 556
 557
 558 static void
 559 tui_toggle_layout_command (char *arg, int from_tty)
 560 {
 561   struct tui_layout_def * layout_def = tui_layout_def ();
 562
 563   /* Make sure the curses mode is enabled.  */
 564   tui_enable ();
 565   if (layout_def->display_mode == SRC_WIN)
 566     layout_def->display_mode = DISASSEM_WIN;
 567   else
 568     layout_def->display_mode = SRC_WIN;
 569
 570   if (!layout_def->split)
 571     tui_handle_xdb_layout (layout_def);
 572 }
 573
 574
 575 static void
 576 tui_toggle_split_layout_command (char *arg, int from_tty)
 577 {
 578   struct tui_layout_def * layout_def = tui_layout_def ();
 579
 580   /* Make sure the curses mode is enabled.  */
 581   tui_enable ();
 582   layout_def->split = (!layout_def->split);
 583   tui_handle_xdb_layout (layout_def);
 584 }
 585
 586
 587 static void
 588 tui_layout_command (char *arg, int from_tty)
 589 {
 590   /* Make sure the curses mode is enabled.  */
 591   tui_enable ();
 592
 593   /* Switch to the selected layout.  */
 594   if (tui_set_layout_for_display_command (arg) != TUI_SUCCESS)
 595     warning (_("Invalid layout specified.\n%s"), LAYOUT_USAGE);
 596
 597 }
 598
 599 /* Answer the previous layout to cycle to.  */
 600 static enum tui_layout_type
 601 next_layout (void)
 602 {
 603   enum tui_layout_type new_layout;
 604
 605   new_layout = tui_current_layout ();
 606   if (new_layout == UNDEFINED_LAYOUT)
 607     new_layout = SRC_COMMAND;
 608   else
 609     {
 610       new_layout++;
 611       if (new_layout == UNDEFINED_LAYOUT)
 612         new_layout = SRC_COMMAND;
 613     }
 614
 615   return new_layout;
 616 }
 617
 618
 619 /* Answer the next layout to cycle to.  */
 620 static enum tui_layout_type
 621 prev_layout (void)
 622 {
 623   enum tui_layout_type new_layout;
 624
 625   new_layout = tui_current_layout ();
 626   if (new_layout == SRC_COMMAND)
 627     new_layout = DISASSEM_DATA_COMMAND;
 628   else
 629     {
 630       new_layout--;
 631       if (new_layout == UNDEFINED_LAYOUT)
 632         new_layout = DISASSEM_DATA_COMMAND;
 633     }
 634
 635   return new_layout;
 636 }
 637
 638
 639
 640 static void
 641 make_command_window (struct tui_win_info * * win_info_ptr, int height, int origin_y)
 642 {
 643   *win_info_ptr = init_and_make_win (*win_info_ptr,
 644                                      CMD_WIN,
 645                                      height,
 646                                      tui_term_width (),
 647                                      0,
 648                                      origin_y,
 649                                      DONT_BOX_WINDOW);
 650
 651   (*win_info_ptr)->can_highlight = FALSE;
 652 }
 653
 654
 655 /*
 656    ** make_source_window().
 657  */
 658 static void
 659 make_source_window (struct tui_win_info * * win_info_ptr, int height, int origin_y)
 660 {
 661   make_source_or_disasm_window (win_info_ptr, SRC_WIN, height, origin_y);
 662
 663   return;
 664 }                               /* make_source_window */
 665
 666
 667 /*
 668    ** make_disasm_window().
 669  */
 670 static void
 671 make_disasm_window (struct tui_win_info * * win_info_ptr, int height, int origin_y)
 672 {
 673   make_source_or_disasm_window (win_info_ptr, DISASSEM_WIN, height, origin_y);
 674
 675   return;
 676 }                               /* make_disasm_window */
 677
 678
 679 static void
 680 make_data_window (struct tui_win_info * * win_info_ptr, int height, int origin_y)
 681 {
 682   *win_info_ptr = init_and_make_win (*win_info_ptr,
 683                                      DATA_WIN,
 684                                      height,
 685                                      tui_term_width (),
 686                                      0,
 687                                      origin_y,
 688                                      BOX_WINDOW);
 689 }
 690
 691
 692
 693 /* Show the Source/Command layout.  */
 694 static void
 695 show_source_command (void)
 696 {
 697   show_source_or_disasm_and_command (SRC_COMMAND);
 698 }
 699
 700
 701 /* Show the Dissassem/Command layout.  */
 702 static void
 703 show_disasm_command (void)
 704 {
 705   show_source_or_disasm_and_command (DISASSEM_COMMAND);
 706 }
 707
 708
 709 /* Show the Source/Disassem/Command layout.  */
 710 static void
 711 show_source_disasm_command (void)
 712 {
 713   if (tui_current_layout () != SRC_DISASSEM_COMMAND)
 714     {
 715       int cmd_height, src_height, asm_height;
 716
 717       if (TUI_CMD_WIN != NULL)
 718         cmd_height = TUI_CMD_WIN->generic.height;
 719       else
 720         cmd_height = tui_term_height () / 3;
 721
 722       src_height = (tui_term_height () - cmd_height) / 2;
 723       asm_height = tui_term_height () - (src_height + cmd_height);
 724
 725       if (TUI_SRC_WIN == NULL)
 726         make_source_window (&TUI_SRC_WIN, src_height, 0);
 727       else
 728         {
 729           init_gen_win_info (&TUI_SRC_WIN->generic,
 730                            TUI_SRC_WIN->generic.type,
 731                            src_height,
 732                            TUI_SRC_WIN->generic.width,
 733                            TUI_SRC_WIN->detail.source_info.execution_info->width,
 734                            0);
 735           TUI_SRC_WIN->can_highlight = TRUE;
 736           init_gen_win_info (TUI_SRC_WIN->detail.source_info.execution_info,
 737                            EXEC_INFO_WIN,
 738                            src_height,
 739                            3,
 740                            0,
 741                            0);
 742           tui_make_visible (&TUI_SRC_WIN->generic);
 743           tui_make_visible (TUI_SRC_WIN->detail.source_info.execution_info);
 744           TUI_SRC_WIN->detail.source_info.has_locator = FALSE;;
 745         }
 746       if (TUI_SRC_WIN != NULL)
 747         {
 748           struct tui_gen_win_info * locator = tui_locator_win_info_ptr ();
 749
 750           tui_show_source_content (TUI_SRC_WIN);
 751           if (TUI_DISASM_WIN == NULL)
 752             {
 753               make_disasm_window (&TUI_DISASM_WIN, asm_height, src_height - 1);
 754               locator = init_and_make_win (locator,
 755                                            LOCATOR_WIN,
 756                                            2 /* 1 */ ,
 757                                            tui_term_width (),
 758                                            0,
 759                                            (src_height + asm_height) - 1,
 760                                            DONT_BOX_WINDOW);
 761             }
 762           else
 763             {
 764               init_gen_win_info (locator,
 765                                LOCATOR_WIN,
 766                                2 /* 1 */ ,
 767                                tui_term_width (),
 768                                0,
 769                                (src_height + asm_height) - 1);
 770               TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
 771               init_gen_win_info (
 772                                 &TUI_DISASM_WIN->generic,
 773                                 TUI_DISASM_WIN->generic.type,
 774                                 asm_height,
 775                                 TUI_DISASM_WIN->generic.width,
 776                         TUI_DISASM_WIN->detail.source_info.execution_info->width,
 777                                 src_height - 1);
 778               init_gen_win_info (TUI_DISASM_WIN->detail.source_info.execution_info,
 779                                EXEC_INFO_WIN,
 780                                asm_height,
 781                                3,
 782                                0,
 783                                src_height - 1);
 784               TUI_DISASM_WIN->can_highlight = TRUE;
 785               tui_make_visible (&TUI_DISASM_WIN->generic);
 786               tui_make_visible (TUI_DISASM_WIN->detail.source_info.execution_info);
 787             }
 788           if (TUI_DISASM_WIN != NULL)
 789             {
 790               TUI_SRC_WIN->detail.source_info.has_locator = FALSE;
 791               TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
 792               tui_make_visible (locator);
 793               tui_show_locator_content ();
 794               tui_show_source_content (TUI_DISASM_WIN);
 795
 796               if (TUI_CMD_WIN == NULL)
 797                 make_command_window (&TUI_CMD_WIN,
 798                                     cmd_height,
 799                                     tui_term_height () - cmd_height);
 800               else
 801                 {
 802                   init_gen_win_info (&TUI_CMD_WIN->generic,
 803                                    TUI_CMD_WIN->generic.type,
 804                                    TUI_CMD_WIN->generic.height,
 805                                    TUI_CMD_WIN->generic.width,
 806                                    0,
 807                                    TUI_CMD_WIN->generic.origin.y);
 808                   TUI_CMD_WIN->can_highlight = FALSE;
 809                   tui_make_visible (&TUI_CMD_WIN->generic);
 810                 }
 811               if (TUI_CMD_WIN != NULL)
 812                 tui_refresh_win (&TUI_CMD_WIN->generic);
 813             }
 814         }
 815       tui_set_current_layout_to (SRC_DISASSEM_COMMAND);
 816     }
 817 }
 818
 819
 820 /* Show the Source/Data/Command or the Dissassembly/Data/Command
 821    layout.  */
 822 static void
 823 show_data (enum tui_layout_type new_layout)
 824 {
 825   int total_height = (tui_term_height () - TUI_CMD_WIN->generic.height);
 826   int src_height, data_height;
 827   enum tui_win_type win_type;
 828   struct tui_gen_win_info * locator = tui_locator_win_info_ptr ();
 829
 830
 831   data_height = total_height / 2;
 832   src_height = total_height - data_height;
 833   tui_make_all_invisible ();
 834   tui_make_invisible (locator);
 835   make_data_window (&TUI_DATA_WIN, data_height, 0);
 836   TUI_DATA_WIN->can_highlight = TRUE;
 837   if (new_layout == SRC_DATA_COMMAND)
 838     win_type = SRC_WIN;
 839   else
 840     win_type = DISASSEM_WIN;
 841   if (tui_win_list[win_type] == NULL)
 842     {
 843       if (win_type == SRC_WIN)
 844         make_source_window (&tui_win_list[win_type], src_height, data_height - 1);
 845       else
 846         make_disasm_window (&tui_win_list[win_type], src_height, data_height - 1);
 847       locator = init_and_make_win (locator,
 848                                    LOCATOR_WIN,
 849                                    2 /* 1 */ ,
 850                                    tui_term_width (),
 851                                    0,
 852                                    total_height - 1,
 853                                    DONT_BOX_WINDOW);
 854     }
 855   else
 856     {
 857       init_gen_win_info (&tui_win_list[win_type]->generic,
 858                        tui_win_list[win_type]->generic.type,
 859                        src_height,
 860                        tui_win_list[win_type]->generic.width,
 861                    tui_win_list[win_type]->detail.source_info.execution_info->width,
 862                        data_height - 1);
 863       init_gen_win_info (tui_win_list[win_type]->detail.source_info.execution_info,
 864                        EXEC_INFO_WIN,
 865                        src_height,
 866                        3,
 867                        0,
 868                        data_height - 1);
 869       tui_make_visible (&tui_win_list[win_type]->generic);
 870       tui_make_visible (tui_win_list[win_type]->detail.source_info.execution_info);
 871       init_gen_win_info (locator,
 872                        LOCATOR_WIN,
 873                        2 /* 1 */ ,
 874                        tui_term_width (),
 875                        0,
 876                        total_height - 1);
 877     }
 878   tui_win_list[win_type]->detail.source_info.has_locator = TRUE;
 879   tui_make_visible (locator);
 880   tui_show_locator_content ();
 881   tui_add_to_source_windows (tui_win_list[win_type]);
 882   tui_set_current_layout_to (new_layout);
 883 }
 884
 885 /*
 886    ** init_gen_win_info().
 887  */
 888 static void
 889 init_gen_win_info (struct tui_gen_win_info * win_info, enum tui_win_type type,
 890                  int height, int width, int origin_x, int origin_y)
 891 {
 892   int h = height;
 893
 894   win_info->type = type;
 895   win_info->width = width;
 896   win_info->height = h;
 897   if (h > 1)
 898     {
 899       win_info->viewport_height = h - 1;
 900       if (win_info->type != CMD_WIN)
 901         win_info->viewport_height--;
 902     }
 903   else
 904     win_info->viewport_height = 1;
 905   win_info->origin.x = origin_x;
 906   win_info->origin.y = origin_y;
 907
 908   return;
 909 }                               /* init_gen_win_info */
 910
 911 /*
 912    ** init_and_make_win().
 913  */
 914 static void *
 915 init_and_make_win (void *opaque_win_info, enum tui_win_type win_type,
 916                    int height, int width, int origin_x, int origin_y,
 917                    int box_it)
 918 {
 919   struct tui_gen_win_info * generic;
 920
 921   if (opaque_win_info == NULL)
 922     {
 923       if (tui_win_is_auxillary (win_type))
 924         opaque_win_info = (void *) tui_alloc_generic_win_info ();
 925       else
 926         opaque_win_info = (void *) tui_alloc_win_info (win_type);
 927     }
 928   if (tui_win_is_auxillary (win_type))
 929     generic = (struct tui_gen_win_info *) opaque_win_info;
 930   else
 931     generic = &((struct tui_win_info *) opaque_win_info)->generic;
 932
 933   if (opaque_win_info != NULL)
 934     {
 935       init_gen_win_info (generic, win_type, height, width, origin_x, origin_y);
 936       if (!tui_win_is_auxillary (win_type))
 937         {
 938           if (generic->type == CMD_WIN)
 939             ((struct tui_win_info *) opaque_win_info)->can_highlight = FALSE;
 940           else
 941             ((struct tui_win_info *) opaque_win_info)->can_highlight = TRUE;
 942         }
 943       tui_make_window (generic, box_it);
 944     }
 945   return opaque_win_info;
 946 }
 947
 948
 949 static void
 950 make_source_or_disasm_window (struct tui_win_info * * win_info_ptr, enum tui_win_type type,
 951                              int height, int origin_y)
 952 {
 953   struct tui_gen_win_info * execution_info = (struct tui_gen_win_info *) NULL;
 954
 955   /*
 956      ** Create the exeuction info window.
 957    */
 958   if (type == SRC_WIN)
 959     execution_info = tui_source_exec_info_win_ptr ();
 960   else
 961     execution_info = tui_disassem_exec_info_win_ptr ();
 962   execution_info = init_and_make_win (execution_info,
 963                                       EXEC_INFO_WIN,
 964                                       height,
 965                                       3,
 966                                       0,
 967                                       origin_y,
 968                                       DONT_BOX_WINDOW);
 969   /*
 970      ** Now create the source window.
 971    */
 972   *win_info_ptr = init_and_make_win (*win_info_ptr,
 973                                      type,
 974                                      height,
 975                                      tui_term_width () - execution_info->width,
 976                                      execution_info->width,
 977                                      origin_y,
 978                                      BOX_WINDOW);
 979
 980   (*win_info_ptr)->detail.source_info.execution_info = execution_info;
 981 }
 982
 983
 984 /* Show the Source/Command or the Disassem layout.   */
 985 static void
 986 show_source_or_disasm_and_command (enum tui_layout_type layout_type)
 987 {
 988   if (tui_current_layout () != layout_type)
 989     {
 990       struct tui_win_info * *win_info_ptr;
 991       int src_height, cmd_height;
 992       struct tui_gen_win_info * locator = tui_locator_win_info_ptr ();
 993
 994       if (TUI_CMD_WIN != NULL)
 995         cmd_height = TUI_CMD_WIN->generic.height;
 996       else
 997         cmd_height = tui_term_height () / 3;
 998       src_height = tui_term_height () - cmd_height;
 999
1000
1001       if (layout_type == SRC_COMMAND)
1002         win_info_ptr = &TUI_SRC_WIN;
1003       else
1004         win_info_ptr = &TUI_DISASM_WIN;
1005
1006       if ((*win_info_ptr) == NULL)
1007         {
1008           if (layout_type == SRC_COMMAND)
1009             make_source_window (win_info_ptr, src_height - 1, 0);
1010           else
1011             make_disasm_window (win_info_ptr, src_height - 1, 0);
1012           locator = init_and_make_win (locator,
1013                                        LOCATOR_WIN,
1014                                        2 /* 1 */ ,
1015                                        tui_term_width (),
1016                                        0,
1017                                        src_height - 1,
1018                                        DONT_BOX_WINDOW);
1019         }
1020       else
1021         {
1022           init_gen_win_info (locator,
1023                            LOCATOR_WIN,
1024                            2 /* 1 */ ,
1025                            tui_term_width (),
1026                            0,
1027                            src_height - 1);
1028           (*win_info_ptr)->detail.source_info.has_locator = TRUE;
1029           init_gen_win_info (
1030                             &(*win_info_ptr)->generic,
1031                             (*win_info_ptr)->generic.type,
1032                             src_height - 1,
1033                             (*win_info_ptr)->generic.width,
1034                       (*win_info_ptr)->detail.source_info.execution_info->width,
1035                             0);
1036           init_gen_win_info ((*win_info_ptr)->detail.source_info.execution_info,
1037                            EXEC_INFO_WIN,
1038                            src_height - 1,
1039                            3,
1040                            0,
1041                            0);
1042           (*win_info_ptr)->can_highlight = TRUE;
1043           tui_make_visible (&(*win_info_ptr)->generic);
1044           tui_make_visible ((*win_info_ptr)->detail.source_info.execution_info);
1045         }
1046       if ((*win_info_ptr) != NULL)
1047         {
1048           (*win_info_ptr)->detail.source_info.has_locator = TRUE;
1049           tui_make_visible (locator);
1050           tui_show_locator_content ();
1051           tui_show_source_content (*win_info_ptr);
1052
1053           if (TUI_CMD_WIN == NULL)
1054             {
1055               make_command_window (&TUI_CMD_WIN, cmd_height, src_height);
1056               tui_refresh_win (&TUI_CMD_WIN->generic);
1057             }
1058           else
1059             {
1060               init_gen_win_info (&TUI_CMD_WIN->generic,
1061                                TUI_CMD_WIN->generic.type,
1062                                TUI_CMD_WIN->generic.height,
1063                                TUI_CMD_WIN->generic.width,
1064                                TUI_CMD_WIN->generic.origin.x,
1065                                TUI_CMD_WIN->generic.origin.y);
1066               TUI_CMD_WIN->can_highlight = FALSE;
1067               tui_make_visible (&TUI_CMD_WIN->generic);
1068             }
1069         }
1070       tui_set_current_layout_to (layout_type);
1071     }
1072 }