contrib/gdb-7/gdb/tui/tui-layout.c

   1 /* TUI layout window management.
   2
   3    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2008, 2009,
   4    2010 Free Software 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 3 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, see <http://www.gnu.org/licenses/>.  */
  22
  23 #include "defs.h"
  24 #include "arch-utils.h"
  25 #include "command.h"
  26 #include "symtab.h"
  27 #include "frame.h"
  28 #include "source.h"
  29 #include <ctype.h>
  30
  31 #include "tui/tui.h"
  32 #include "tui/tui-data.h"
  33 #include "tui/tui-windata.h"
  34 #include "tui/tui-wingeneral.h"
  35 #include "tui/tui-stack.h"
  36 #include "tui/tui-regs.h"
  37 #include "tui/tui-win.h"
  38 #include "tui/tui-winsource.h"
  39 #include "tui/tui-disasm.h"
  40 #include "tui/tui-layout.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 *,
  50                                enum tui_win_type,
  51                                int, int, int, int);
  52 static void *init_and_make_win (void *, enum tui_win_type,
  53                                 int, int, int, int, int);
  54 static void show_source_or_disasm_and_command (enum tui_layout_type);
  55 static void make_source_or_disasm_window (struct tui_win_info **,
  56                                           enum tui_win_type,
  57                                           int, int);
  58 static void make_command_window (struct tui_win_info **, int, int);
  59 static void make_source_window (struct tui_win_info **, int, int);
  60 static void make_disasm_window (struct tui_win_info **, int, int);
  61 static void make_data_window (struct tui_win_info **, int, int);
  62 static void show_source_command (void);
  63 static void show_disasm_command (void);
  64 static void show_source_disasm_command (void);
  65 static void show_data (enum tui_layout_type);
  66 static enum tui_layout_type next_layout (void);
  67 static enum tui_layout_type prev_layout (void);
  68 static void tui_layout_command (char *, int);
  69 static void tui_toggle_layout_command (char *, int);
  70 static void tui_toggle_split_layout_command (char *, int);
  71 static void extract_display_start_addr (struct gdbarch **, CORE_ADDR *);
  72 static void tui_handle_xdb_layout (struct tui_layout_def *);
  73
  74
  75 /***************************************
  76 ** DEFINITIONS
  77 ***************************************/
  78
  79 #define LAYOUT_USAGE     "Usage: layout prev | next | <layout_name> \n"
  80
  81 /* Show the screen layout defined.  */
  82 static void
  83 show_layout (enum tui_layout_type layout)
  84 {
  85   enum tui_layout_type cur_layout = tui_current_layout ();
  86
  87   if (layout != cur_layout)
  88     {
  89       /* Since the new layout may cause changes in window size, we
  90          should free the content and reallocate on next display of
  91          source/asm.  */
  92       tui_free_all_source_wins_content ();
  93       tui_clear_source_windows ();
  94       if (layout == SRC_DATA_COMMAND
  95           || layout == DISASSEM_DATA_COMMAND)
  96         {
  97           show_data (layout);
  98           tui_refresh_all (tui_win_list);
  99         }
 100       else
 101         {
 102           /* First make the current layout be invisible.  */
 103           tui_make_all_invisible ();
 104           tui_make_invisible (tui_locator_win_info_ptr ());
 105
 106           switch (layout)
 107             {
 108               /* Now show the new layout.  */
 109             case SRC_COMMAND:
 110               show_source_command ();
 111               tui_add_to_source_windows (TUI_SRC_WIN);
 112               break;
 113             case DISASSEM_COMMAND:
 114               show_disasm_command ();
 115               tui_add_to_source_windows (TUI_DISASM_WIN);
 116               break;
 117             case SRC_DISASSEM_COMMAND:
 118               show_source_disasm_command ();
 119               tui_add_to_source_windows (TUI_SRC_WIN);
 120               tui_add_to_source_windows (TUI_DISASM_WIN);
 121               break;
 122             default:
 123               break;
 124             }
 125         }
 126     }
 127 }
 128
 129
 130 /* Function to set the layout to SRC_COMMAND, DISASSEM_COMMAND,
 131    SRC_DISASSEM_COMMAND, SRC_DATA_COMMAND, or DISASSEM_DATA_COMMAND.
 132    If the layout is SRC_DATA_COMMAND, DISASSEM_DATA_COMMAND, or
 133    UNDEFINED_LAYOUT, then the data window is populated according to
 134    regs_display_type.  */
 135 enum tui_status
 136 tui_set_layout (enum tui_layout_type layout_type,
 137                 enum tui_register_display_type regs_display_type)
 138 {
 139   enum tui_status status = TUI_SUCCESS;
 140
 141   if (layout_type != UNDEFINED_LAYOUT
 142       || regs_display_type != TUI_UNDEFINED_REGS)
 143     {
 144       enum tui_layout_type cur_layout = tui_current_layout (),
 145         new_layout = UNDEFINED_LAYOUT;
 146       int regs_populate = FALSE;
 147       struct gdbarch *gdbarch;
 148       CORE_ADDR addr;
 149       struct tui_win_info *win_with_focus = tui_win_with_focus ();
 150       struct tui_layout_def *layout_def = tui_layout_def ();
 151
 152       extract_display_start_addr (&gdbarch, &addr);
 153
 154       if (layout_type == UNDEFINED_LAYOUT
 155           && regs_display_type != TUI_UNDEFINED_REGS)
 156         {
 157           if (cur_layout == SRC_DISASSEM_COMMAND)
 158             new_layout = DISASSEM_DATA_COMMAND;
 159           else if (cur_layout == SRC_COMMAND
 160                    || cur_layout == SRC_DATA_COMMAND)
 161             new_layout = SRC_DATA_COMMAND;
 162           else if (cur_layout == DISASSEM_COMMAND
 163                    || cur_layout == DISASSEM_DATA_COMMAND)
 164             new_layout = DISASSEM_DATA_COMMAND;
 165         }
 166       else
 167         new_layout = layout_type;
 168
 169       regs_populate = (new_layout == SRC_DATA_COMMAND
 170                        || new_layout == DISASSEM_DATA_COMMAND
 171                        || regs_display_type != TUI_UNDEFINED_REGS);
 172       if (new_layout != cur_layout
 173           || regs_display_type != TUI_UNDEFINED_REGS)
 174         {
 175           if (new_layout != cur_layout)
 176             {
 177               show_layout (new_layout);
 178
 179               /* Now determine where focus should be.  */
 180               if (win_with_focus != TUI_CMD_WIN)
 181                 {
 182                   switch (new_layout)
 183                     {
 184                     case SRC_COMMAND:
 185                       tui_set_win_focus_to (TUI_SRC_WIN);
 186                       layout_def->display_mode = SRC_WIN;
 187                       layout_def->split = FALSE;
 188                       break;
 189                     case DISASSEM_COMMAND:
 190                       /* The previous layout was not showing code.
 191                          This can happen if there is no source
 192                          available:
 193
 194                          1. if the source file is in another dir OR
 195                          2. if target was compiled without -g
 196                          We still want to show the assembly though!  */
 197
 198                       tui_get_begin_asm_address (&gdbarch, &addr);
 199                       tui_set_win_focus_to (TUI_DISASM_WIN);
 200                       layout_def->display_mode = DISASSEM_WIN;
 201                       layout_def->split = FALSE;
 202                       break;
 203                     case SRC_DISASSEM_COMMAND:
 204                       /* The previous layout was not showing code.
 205                          This can happen if there is no source
 206                          available:
 207
 208                          1. if the source file is in another dir OR
 209                          2. if target was compiled without -g
 210                          We still want to show the assembly though!  */
 211
 212                       tui_get_begin_asm_address (&gdbarch, &addr);
 213                       if (win_with_focus == TUI_SRC_WIN)
 214                         tui_set_win_focus_to (TUI_SRC_WIN);
 215                       else
 216                         tui_set_win_focus_to (TUI_DISASM_WIN);
 217                       layout_def->split = TRUE;
 218                       break;
 219                     case SRC_DATA_COMMAND:
 220                       if (win_with_focus != TUI_DATA_WIN)
 221                         tui_set_win_focus_to (TUI_SRC_WIN);
 222                       else
 223                         tui_set_win_focus_to (TUI_DATA_WIN);
 224                       layout_def->display_mode = SRC_WIN;
 225                       layout_def->split = FALSE;
 226                       break;
 227                     case DISASSEM_DATA_COMMAND:
 228                       /* The previous layout was not showing code.
 229                          This can happen if there is no source
 230                          available:
 231
 232                          1. if the source file is in another dir OR
 233                          2. if target was compiled without -g
 234                          We still want to show the assembly though!  */
 235
 236                       tui_get_begin_asm_address (&gdbarch, &addr);
 237                       if (win_with_focus != TUI_DATA_WIN)
 238                         tui_set_win_focus_to (TUI_DISASM_WIN);
 239                       else
 240                         tui_set_win_focus_to (TUI_DATA_WIN);
 241                       layout_def->display_mode = DISASSEM_WIN;
 242                       layout_def->split = FALSE;
 243                       break;
 244                     default:
 245                       break;
 246                     }
 247                 }
 248               /*
 249                * Now update the window content.
 250                */
 251               if (!regs_populate
 252                   && (new_layout == SRC_DATA_COMMAND
 253                       || new_layout == DISASSEM_DATA_COMMAND))
 254                 tui_display_all_data ();
 255
 256               tui_update_source_windows_with_addr (gdbarch, addr);
 257             }
 258           if (regs_populate)
 259             {
 260               tui_show_registers (TUI_DATA_WIN->detail.data_display_info.current_group);
 261             }
 262         }
 263     }
 264   else
 265     status = TUI_FAILURE;
 266
 267   return status;
 268 }
 269
 270 /* Add the specified window to the layout in a logical way.  This
 271    means setting up the most logical layout given the window to be
 272    added.  */
 273 void
 274 tui_add_win_to_layout (enum tui_win_type type)
 275 {
 276   enum tui_layout_type cur_layout = tui_current_layout ();
 277
 278   switch (type)
 279     {
 280     case SRC_WIN:
 281       if (cur_layout != SRC_COMMAND
 282           && cur_layout != SRC_DISASSEM_COMMAND
 283           && cur_layout != SRC_DATA_COMMAND)
 284         {
 285           tui_clear_source_windows_detail ();
 286           if (cur_layout == DISASSEM_DATA_COMMAND)
 287             show_layout (SRC_DATA_COMMAND);
 288           else
 289             show_layout (SRC_COMMAND);
 290         }
 291       break;
 292     case DISASSEM_WIN:
 293       if (cur_layout != DISASSEM_COMMAND
 294           && cur_layout != SRC_DISASSEM_COMMAND
 295           && cur_layout != DISASSEM_DATA_COMMAND)
 296         {
 297           tui_clear_source_windows_detail ();
 298           if (cur_layout == SRC_DATA_COMMAND)
 299             show_layout (DISASSEM_DATA_COMMAND);
 300           else
 301             show_layout (DISASSEM_COMMAND);
 302         }
 303       break;
 304     case DATA_WIN:
 305       if (cur_layout != SRC_DATA_COMMAND
 306           && cur_layout != DISASSEM_DATA_COMMAND)
 307         {
 308           if (cur_layout == DISASSEM_COMMAND)
 309             show_layout (DISASSEM_DATA_COMMAND);
 310           else
 311             show_layout (SRC_DATA_COMMAND);
 312         }
 313       break;
 314     default:
 315       break;
 316     }
 317 }
 318
 319
 320 /* Answer the height of a window.  If it hasn't been created yet,
 321    answer what the height of a window would be based upon its type and
 322    the layout.  */
 323 int
 324 tui_default_win_height (enum tui_win_type type,
 325                         enum tui_layout_type layout)
 326 {
 327   int h;
 328
 329   if (tui_win_list[type] != (struct tui_win_info *) NULL)
 330     h = tui_win_list[type]->generic.height;
 331   else
 332     {
 333       switch (layout)
 334         {
 335         case SRC_COMMAND:
 336         case DISASSEM_COMMAND:
 337           if (TUI_CMD_WIN == NULL)
 338             h = tui_term_height () / 2;
 339           else
 340             h = tui_term_height () - TUI_CMD_WIN->generic.height;
 341           break;
 342         case SRC_DISASSEM_COMMAND:
 343         case SRC_DATA_COMMAND:
 344         case DISASSEM_DATA_COMMAND:
 345           if (TUI_CMD_WIN == NULL)
 346             h = tui_term_height () / 3;
 347           else
 348             h = (tui_term_height () - TUI_CMD_WIN->generic.height) / 2;
 349           break;
 350         default:
 351           h = 0;
 352           break;
 353         }
 354     }
 355
 356   return h;
 357 }
 358
 359
 360 /* Answer the height of a window.  If it hasn't been created yet,
 361    answer what the height of a window would be based upon its type and
 362    the layout.  */
 363 int
 364 tui_default_win_viewport_height (enum tui_win_type type,
 365                                  enum tui_layout_type layout)
 366 {
 367   int h;
 368
 369   h = tui_default_win_height (type, layout);
 370
 371   if (tui_win_list[type] == TUI_CMD_WIN)
 372     h -= 1;
 373   else
 374     h -= 2;
 375
 376   return h;
 377 }
 378
 379
 380 /* Function to initialize gdb commands, for tui window layout
 381    manipulation.  */
 382
 383 /* Provide a prototype to silence -Wmissing-prototypes.  */
 384 extern initialize_file_ftype _initialize_tui_layout;
 385
 386 void
 387 _initialize_tui_layout (void)
 388 {
 389   add_com ("layout", class_tui, tui_layout_command, _("\
 390 Change the layout of windows.\n\
 391 Usage: layout prev | next | <layout_name> \n\
 392 Layout names are:\n\
 393    src   : Displays source and command windows.\n\
 394    asm   : Displays disassembly and command windows.\n\
 395    split : Displays source, disassembly and command windows.\n\
 396    regs  : Displays register window. If existing layout\n\
 397            is source/command or assembly/command, the \n\
 398            register window is displayed. If the\n\
 399            source/assembly/command (split) is displayed, \n\
 400            the register window is displayed with \n\
 401            the window that has current logical focus.\n"));
 402   if (xdb_commands)
 403     {
 404       add_com ("td", class_tui, tui_toggle_layout_command, _("\
 405 Toggle between Source/Command and Disassembly/Command layouts.\n"));
 406       add_com ("ts", class_tui, tui_toggle_split_layout_command, _("\
 407 Toggle between Source/Command or Disassembly/Command and \n\
 408 Source/Disassembly/Command layouts.\n"));
 409     }
 410 }
 411
 412
 413 /*************************
 414 ** STATIC LOCAL FUNCTIONS
 415 **************************/
 416
 417
 418 /* Function to set the layout to SRC, ASM, SPLIT, NEXT, PREV, DATA,
 419    REGS, $REGS, $GREGS, $FREGS, $SREGS.  */
 420 enum tui_status
 421 tui_set_layout_for_display_command (const char *layout_name)
 422 {
 423   enum tui_status status = TUI_SUCCESS;
 424
 425   if (layout_name != (char *) NULL)
 426     {
 427       int i;
 428       char *buf_ptr;
 429       enum tui_layout_type new_layout = UNDEFINED_LAYOUT;
 430       enum tui_register_display_type dpy_type = TUI_UNDEFINED_REGS;
 431       enum tui_layout_type cur_layout = tui_current_layout ();
 432
 433       buf_ptr = (char *) xstrdup (layout_name);
 434       for (i = 0; (i < strlen (layout_name)); i++)
 435         buf_ptr[i] = toupper (buf_ptr[i]);
 436
 437       /* First check for ambiguous input.  */
 438       if (strlen (buf_ptr) <= 1
 439           && (*buf_ptr == 'S' || *buf_ptr == '$'))
 440         {
 441           warning (_("Ambiguous command input."));
 442           status = TUI_FAILURE;
 443         }
 444       else
 445         {
 446           if (subset_compare (buf_ptr, "SRC"))
 447             new_layout = SRC_COMMAND;
 448           else if (subset_compare (buf_ptr, "ASM"))
 449             new_layout = DISASSEM_COMMAND;
 450           else if (subset_compare (buf_ptr, "SPLIT"))
 451             new_layout = SRC_DISASSEM_COMMAND;
 452           else if (subset_compare (buf_ptr, "REGS")
 453                    || subset_compare (buf_ptr, TUI_GENERAL_SPECIAL_REGS_NAME)
 454                    || subset_compare (buf_ptr, TUI_GENERAL_REGS_NAME)
 455                    || subset_compare (buf_ptr, TUI_FLOAT_REGS_NAME)
 456                    || subset_compare (buf_ptr, TUI_SPECIAL_REGS_NAME))
 457             {
 458               if (cur_layout == SRC_COMMAND
 459                   || cur_layout == SRC_DATA_COMMAND)
 460                 new_layout = SRC_DATA_COMMAND;
 461               else
 462                 new_layout = DISASSEM_DATA_COMMAND;
 463
 464               /* Could ifdef out the following code. when compile with
 465                  -z, there are null pointer references that cause a
 466                  core dump if 'layout regs' is the first layout
 467                  command issued by the user. HP has asked us to hook
 468                  up this code.  - edie epstein  */
 469               if (subset_compare (buf_ptr, TUI_FLOAT_REGS_NAME))
 470                 {
 471                   if (TUI_DATA_WIN->detail.data_display_info.regs_display_type != TUI_SFLOAT_REGS
 472                       && TUI_DATA_WIN->detail.data_display_info.regs_display_type != TUI_DFLOAT_REGS)
 473                     dpy_type = TUI_SFLOAT_REGS;
 474                   else
 475                     dpy_type =
 476                       TUI_DATA_WIN->detail.data_display_info.regs_display_type;
 477                 }
 478               else if (subset_compare (buf_ptr,
 479                                       TUI_GENERAL_SPECIAL_REGS_NAME))
 480                 dpy_type = TUI_GENERAL_AND_SPECIAL_REGS;
 481               else if (subset_compare (buf_ptr, TUI_GENERAL_REGS_NAME))
 482                 dpy_type = TUI_GENERAL_REGS;
 483               else if (subset_compare (buf_ptr, TUI_SPECIAL_REGS_NAME))
 484                 dpy_type = TUI_SPECIAL_REGS;
 485               else if (TUI_DATA_WIN)
 486                 {
 487                   if (TUI_DATA_WIN->detail.data_display_info.regs_display_type !=
 488                       TUI_UNDEFINED_REGS)
 489                     dpy_type =
 490                       TUI_DATA_WIN->detail.data_display_info.regs_display_type;
 491                   else
 492                     dpy_type = TUI_GENERAL_REGS;
 493                 }
 494
 495               /* End of potential ifdef.
 496                */
 497
 498               /* If ifdefed out code above, then assume that the user
 499                  wishes to display the general purpose registers .
 500               */
 501
 502               /* dpy_type = TUI_GENERAL_REGS; */
 503             }
 504           else if (subset_compare (buf_ptr, "NEXT"))
 505             new_layout = next_layout ();
 506           else if (subset_compare (buf_ptr, "PREV"))
 507             new_layout = prev_layout ();
 508           else
 509             status = TUI_FAILURE;
 510
 511           tui_set_layout (new_layout, dpy_type);
 512         }
 513       xfree (buf_ptr);
 514     }
 515   else
 516     status = TUI_FAILURE;
 517
 518   return status;
 519 }
 520
 521
 522 static void
 523 extract_display_start_addr (struct gdbarch **gdbarch_p, CORE_ADDR *addr_p)
 524 {
 525   enum tui_layout_type cur_layout = tui_current_layout ();
 526   struct gdbarch *gdbarch = get_current_arch ();
 527   CORE_ADDR addr;
 528   CORE_ADDR pc;
 529   struct symtab_and_line cursal = get_current_source_symtab_and_line ();
 530
 531   switch (cur_layout)
 532     {
 533     case SRC_COMMAND:
 534     case SRC_DATA_COMMAND:
 535       gdbarch = TUI_SRC_WIN->detail.source_info.gdbarch;
 536       find_line_pc (cursal.symtab,
 537                     TUI_SRC_WIN->detail.source_info.start_line_or_addr.u.line_no,
 538                     &pc);
 539       addr = pc;
 540       break;
 541     case DISASSEM_COMMAND:
 542     case SRC_DISASSEM_COMMAND:
 543     case DISASSEM_DATA_COMMAND:
 544       gdbarch = TUI_DISASM_WIN->detail.source_info.gdbarch;
 545       addr = TUI_DISASM_WIN->detail.source_info.start_line_or_addr.u.addr;
 546       break;
 547     default:
 548       addr = 0;
 549       break;
 550     }
 551
 552   *gdbarch_p = gdbarch;
 553   *addr_p = addr;
 554 }
 555
 556
 557 static void
 558 tui_handle_xdb_layout (struct tui_layout_def *layout_def)
 559 {
 560   if (layout_def->split)
 561     {
 562       tui_set_layout (SRC_DISASSEM_COMMAND, TUI_UNDEFINED_REGS);
 563       tui_set_win_focus_to (tui_win_list[layout_def->display_mode]);
 564     }
 565   else
 566     {
 567       if (layout_def->display_mode == SRC_WIN)
 568         tui_set_layout (SRC_COMMAND, TUI_UNDEFINED_REGS);
 569       else
 570         tui_set_layout (DISASSEM_DATA_COMMAND, layout_def->regs_display_type);
 571     }
 572 }
 573
 574
 575 static void
 576 tui_toggle_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   if (layout_def->display_mode == SRC_WIN)
 583     layout_def->display_mode = DISASSEM_WIN;
 584   else
 585     layout_def->display_mode = SRC_WIN;
 586
 587   if (!layout_def->split)
 588     tui_handle_xdb_layout (layout_def);
 589 }
 590
 591
 592 static void
 593 tui_toggle_split_layout_command (char *arg, int from_tty)
 594 {
 595   struct tui_layout_def *layout_def = tui_layout_def ();
 596
 597   /* Make sure the curses mode is enabled.  */
 598   tui_enable ();
 599   layout_def->split = (!layout_def->split);
 600   tui_handle_xdb_layout (layout_def);
 601 }
 602
 603
 604 static void
 605 tui_layout_command (char *arg, int from_tty)
 606 {
 607   /* Make sure the curses mode is enabled.  */
 608   tui_enable ();
 609
 610   /* Switch to the selected layout.  */
 611   if (tui_set_layout_for_display_command (arg) != TUI_SUCCESS)
 612     warning (_("Invalid layout specified.\n%s"), LAYOUT_USAGE);
 613
 614 }
 615
 616 /* Answer the previous layout to cycle to.  */
 617 static enum tui_layout_type
 618 next_layout (void)
 619 {
 620   enum tui_layout_type new_layout;
 621
 622   new_layout = tui_current_layout ();
 623   if (new_layout == UNDEFINED_LAYOUT)
 624     new_layout = SRC_COMMAND;
 625   else
 626     {
 627       new_layout++;
 628       if (new_layout == UNDEFINED_LAYOUT)
 629         new_layout = SRC_COMMAND;
 630     }
 631
 632   return new_layout;
 633 }
 634
 635
 636 /* Answer the next layout to cycle to.  */
 637 static enum tui_layout_type
 638 prev_layout (void)
 639 {
 640   enum tui_layout_type new_layout;
 641
 642   new_layout = tui_current_layout ();
 643   if (new_layout == SRC_COMMAND)
 644     new_layout = DISASSEM_DATA_COMMAND;
 645   else
 646     {
 647       new_layout--;
 648       if (new_layout == UNDEFINED_LAYOUT)
 649         new_layout = DISASSEM_DATA_COMMAND;
 650     }
 651
 652   return new_layout;
 653 }
 654
 655
 656
 657 static void
 658 make_command_window (struct tui_win_info **win_info_ptr,
 659                      int height, int origin_y)
 660 {
 661   *win_info_ptr = init_and_make_win (*win_info_ptr,
 662                                      CMD_WIN,
 663                                      height,
 664                                      tui_term_width (),
 665                                      0,
 666                                      origin_y,
 667                                      DONT_BOX_WINDOW);
 668
 669   (*win_info_ptr)->can_highlight = FALSE;
 670 }
 671
 672
 673 /* make_source_window().
 674  */
 675 static void
 676 make_source_window (struct tui_win_info **win_info_ptr,
 677                     int height, int origin_y)
 678 {
 679   make_source_or_disasm_window (win_info_ptr, SRC_WIN, height, origin_y);
 680
 681   return;
 682 }                               /* make_source_window */
 683
 684
 685 /* make_disasm_window().
 686  */
 687 static void
 688 make_disasm_window (struct tui_win_info **win_info_ptr,
 689                     int height, int origin_y)
 690 {
 691   make_source_or_disasm_window (win_info_ptr, DISASSEM_WIN, height, origin_y);
 692
 693   return;
 694 }                               /* make_disasm_window */
 695
 696
 697 static void
 698 make_data_window (struct tui_win_info **win_info_ptr,
 699                   int height, int origin_y)
 700 {
 701   *win_info_ptr = init_and_make_win (*win_info_ptr,
 702                                      DATA_WIN,
 703                                      height,
 704                                      tui_term_width (),
 705                                      0,
 706                                      origin_y,
 707                                      BOX_WINDOW);
 708 }
 709
 710
 711
 712 /* Show the Source/Command layout.  */
 713 static void
 714 show_source_command (void)
 715 {
 716   show_source_or_disasm_and_command (SRC_COMMAND);
 717 }
 718
 719
 720 /* Show the Dissassem/Command layout.  */
 721 static void
 722 show_disasm_command (void)
 723 {
 724   show_source_or_disasm_and_command (DISASSEM_COMMAND);
 725 }
 726
 727
 728 /* Show the Source/Disassem/Command layout.  */
 729 static void
 730 show_source_disasm_command (void)
 731 {
 732   if (tui_current_layout () != SRC_DISASSEM_COMMAND)
 733     {
 734       int cmd_height, src_height, asm_height;
 735
 736       if (TUI_CMD_WIN != NULL)
 737         cmd_height = TUI_CMD_WIN->generic.height;
 738       else
 739         cmd_height = tui_term_height () / 3;
 740
 741       src_height = (tui_term_height () - cmd_height) / 2;
 742       asm_height = tui_term_height () - (src_height + cmd_height);
 743
 744       if (TUI_SRC_WIN == NULL)
 745         make_source_window (&TUI_SRC_WIN, src_height, 0);
 746       else
 747         {
 748           init_gen_win_info (&TUI_SRC_WIN->generic,
 749                              TUI_SRC_WIN->generic.type,
 750                              src_height,
 751                              TUI_SRC_WIN->generic.width,
 752                              TUI_SRC_WIN->detail.source_info.execution_info->width,
 753                              0);
 754           TUI_SRC_WIN->can_highlight = TRUE;
 755           init_gen_win_info (TUI_SRC_WIN->detail.source_info.execution_info,
 756                              EXEC_INFO_WIN,
 757                              src_height,
 758                              3,
 759                              0,
 760                              0);
 761           tui_make_visible (&TUI_SRC_WIN->generic);
 762           tui_make_visible (TUI_SRC_WIN->detail.source_info.execution_info);
 763           TUI_SRC_WIN->detail.source_info.has_locator = FALSE;;
 764         }
 765       if (TUI_SRC_WIN != NULL)
 766         {
 767           struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
 768
 769           tui_show_source_content (TUI_SRC_WIN);
 770           if (TUI_DISASM_WIN == NULL)
 771             {
 772               make_disasm_window (&TUI_DISASM_WIN, asm_height, src_height - 1);
 773               locator = init_and_make_win (locator,
 774                                            LOCATOR_WIN,
 775                                            2 /* 1 */ ,
 776                                            tui_term_width (),
 777                                            0,
 778                                            (src_height + asm_height) - 1,
 779                                            DONT_BOX_WINDOW);
 780             }
 781           else
 782             {
 783               init_gen_win_info (locator,
 784                                  LOCATOR_WIN,
 785                                  2 /* 1 */ ,
 786                                  tui_term_width (),
 787                                  0,
 788                                  (src_height + asm_height) - 1);
 789               TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
 790               init_gen_win_info (&TUI_DISASM_WIN->generic,
 791                                  TUI_DISASM_WIN->generic.type,
 792                                  asm_height,
 793                                  TUI_DISASM_WIN->generic.width,
 794                                  TUI_DISASM_WIN->detail.source_info.execution_info->width,
 795                                  src_height - 1);
 796               init_gen_win_info (TUI_DISASM_WIN->detail.source_info.execution_info,
 797                                  EXEC_INFO_WIN,
 798                                  asm_height,
 799                                  3,
 800                                  0,
 801                                  src_height - 1);
 802               TUI_DISASM_WIN->can_highlight = TRUE;
 803               tui_make_visible (&TUI_DISASM_WIN->generic);
 804               tui_make_visible (TUI_DISASM_WIN->detail.source_info.execution_info);
 805             }
 806           if (TUI_DISASM_WIN != NULL)
 807             {
 808               TUI_SRC_WIN->detail.source_info.has_locator = FALSE;
 809               TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
 810               tui_make_visible (locator);
 811               tui_show_locator_content ();
 812               tui_show_source_content (TUI_DISASM_WIN);
 813
 814               if (TUI_CMD_WIN == NULL)
 815                 make_command_window (&TUI_CMD_WIN,
 816                                      cmd_height,
 817                                      tui_term_height () - cmd_height);
 818               else
 819                 {
 820                   init_gen_win_info (&TUI_CMD_WIN->generic,
 821                                      TUI_CMD_WIN->generic.type,
 822                                      TUI_CMD_WIN->generic.height,
 823                                      TUI_CMD_WIN->generic.width,
 824                                      0,
 825                                      TUI_CMD_WIN->generic.origin.y);
 826                   TUI_CMD_WIN->can_highlight = FALSE;
 827                   tui_make_visible (&TUI_CMD_WIN->generic);
 828                 }
 829               if (TUI_CMD_WIN != NULL)
 830                 tui_refresh_win (&TUI_CMD_WIN->generic);
 831             }
 832         }
 833       tui_set_current_layout_to (SRC_DISASSEM_COMMAND);
 834     }
 835 }
 836
 837
 838 /* Show the Source/Data/Command or the Dissassembly/Data/Command
 839    layout.  */
 840 static void
 841 show_data (enum tui_layout_type new_layout)
 842 {
 843   int total_height = (tui_term_height () - TUI_CMD_WIN->generic.height);
 844   int src_height, data_height;
 845   enum tui_win_type win_type;
 846   struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
 847
 848
 849   data_height = total_height / 2;
 850   src_height = total_height - data_height;
 851   tui_make_all_invisible ();
 852   tui_make_invisible (locator);
 853   make_data_window (&TUI_DATA_WIN, data_height, 0);
 854   TUI_DATA_WIN->can_highlight = TRUE;
 855   if (new_layout == SRC_DATA_COMMAND)
 856     win_type = SRC_WIN;
 857   else
 858     win_type = DISASSEM_WIN;
 859   if (tui_win_list[win_type] == NULL)
 860     {
 861       if (win_type == SRC_WIN)
 862         make_source_window (&tui_win_list[win_type], src_height, data_height - 1);
 863       else
 864         make_disasm_window (&tui_win_list[win_type], src_height, data_height - 1);
 865       locator = init_and_make_win (locator,
 866                                    LOCATOR_WIN,
 867                                    2 /* 1 */ ,
 868                                    tui_term_width (),
 869                                    0,
 870                                    total_height - 1,
 871                                    DONT_BOX_WINDOW);
 872     }
 873   else
 874     {
 875       init_gen_win_info (&tui_win_list[win_type]->generic,
 876                          tui_win_list[win_type]->generic.type,
 877                          src_height,
 878                          tui_win_list[win_type]->generic.width,
 879                          tui_win_list[win_type]->detail.source_info.execution_info->width,
 880                          data_height - 1);
 881       init_gen_win_info (tui_win_list[win_type]->detail.source_info.execution_info,
 882                          EXEC_INFO_WIN,
 883                          src_height,
 884                          3,
 885                          0,
 886                          data_height - 1);
 887       tui_make_visible (&tui_win_list[win_type]->generic);
 888       tui_make_visible (tui_win_list[win_type]->detail.source_info.execution_info);
 889       init_gen_win_info (locator,
 890                          LOCATOR_WIN,
 891                          2 /* 1 */ ,
 892                          tui_term_width (),
 893                          0,
 894                          total_height - 1);
 895     }
 896   tui_win_list[win_type]->detail.source_info.has_locator = TRUE;
 897   tui_make_visible (locator);
 898   tui_show_locator_content ();
 899   tui_add_to_source_windows (tui_win_list[win_type]);
 900   tui_set_current_layout_to (new_layout);
 901 }
 902
 903 /* init_gen_win_info().
 904  */
 905 static void
 906 init_gen_win_info (struct tui_gen_win_info *win_info,
 907                    enum tui_win_type type,
 908                    int height, int width,
 909                    int origin_x, int origin_y)
 910 {
 911   int h = height;
 912
 913   win_info->type = type;
 914   win_info->width = width;
 915   win_info->height = h;
 916   if (h > 1)
 917     {
 918       win_info->viewport_height = h - 1;
 919       if (win_info->type != CMD_WIN)
 920         win_info->viewport_height--;
 921     }
 922   else
 923     win_info->viewport_height = 1;
 924   win_info->origin.x = origin_x;
 925   win_info->origin.y = origin_y;
 926
 927   return;
 928 }                               /* init_gen_win_info */
 929
 930 /* init_and_make_win().
 931  */
 932 static void *
 933 init_and_make_win (void *opaque_win_info,
 934                    enum tui_win_type win_type,
 935                    int height, int width,
 936                    int origin_x, int origin_y,
 937                    int box_it)
 938 {
 939   struct tui_gen_win_info *generic;
 940
 941   if (opaque_win_info == NULL)
 942     {
 943       if (tui_win_is_auxillary (win_type))
 944         opaque_win_info = (void *) tui_alloc_generic_win_info ();
 945       else
 946         opaque_win_info = (void *) tui_alloc_win_info (win_type);
 947     }
 948   if (tui_win_is_auxillary (win_type))
 949     generic = (struct tui_gen_win_info *) opaque_win_info;
 950   else
 951     generic = &((struct tui_win_info *) opaque_win_info)->generic;
 952
 953   if (opaque_win_info != NULL)
 954     {
 955       init_gen_win_info (generic, win_type, height, width, origin_x, origin_y);
 956       if (!tui_win_is_auxillary (win_type))
 957         {
 958           if (generic->type == CMD_WIN)
 959             ((struct tui_win_info *) opaque_win_info)->can_highlight = FALSE;
 960           else
 961             ((struct tui_win_info *) opaque_win_info)->can_highlight = TRUE;
 962         }
 963       tui_make_window (generic, box_it);
 964     }
 965   return opaque_win_info;
 966 }
 967
 968
 969 static void
 970 make_source_or_disasm_window (struct tui_win_info **win_info_ptr,
 971                               enum tui_win_type type,
 972                               int height, int origin_y)
 973 {
 974   struct tui_gen_win_info *execution_info = (struct tui_gen_win_info *) NULL;
 975
 976   /* Create the exeuction info window.  */
 977   if (type == SRC_WIN)
 978     execution_info = tui_source_exec_info_win_ptr ();
 979   else
 980     execution_info = tui_disassem_exec_info_win_ptr ();
 981   execution_info = init_and_make_win (execution_info,
 982                                       EXEC_INFO_WIN,
 983                                       height,
 984                                       3,
 985                                       0,
 986                                       origin_y,
 987                                       DONT_BOX_WINDOW);
 988
 989   /* Now create the source window.  */
 990   *win_info_ptr = init_and_make_win (*win_info_ptr,
 991                                      type,
 992                                      height,
 993                                      tui_term_width () - execution_info->width,
 994                                      execution_info->width,
 995                                      origin_y,
 996                                      BOX_WINDOW);
 997
 998   (*win_info_ptr)->detail.source_info.execution_info = execution_info;
 999 }
1000
1001
1002 /* Show the Source/Command or the Disassem layout.  */
1003 static void
1004 show_source_or_disasm_and_command (enum tui_layout_type layout_type)
1005 {
1006   if (tui_current_layout () != layout_type)
1007     {
1008       struct tui_win_info **win_info_ptr;
1009       int src_height, cmd_height;
1010       struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
1011
1012       if (TUI_CMD_WIN != NULL)
1013         cmd_height = TUI_CMD_WIN->generic.height;
1014       else
1015         cmd_height = tui_term_height () / 3;
1016       src_height = tui_term_height () - cmd_height;
1017
1018       if (layout_type == SRC_COMMAND)
1019         win_info_ptr = &TUI_SRC_WIN;
1020       else
1021         win_info_ptr = &TUI_DISASM_WIN;
1022
1023       if ((*win_info_ptr) == NULL)
1024         {
1025           if (layout_type == SRC_COMMAND)
1026             make_source_window (win_info_ptr, src_height - 1, 0);
1027           else
1028             make_disasm_window (win_info_ptr, src_height - 1, 0);
1029           locator = init_and_make_win (locator,
1030                                        LOCATOR_WIN,
1031                                        2 /* 1 */ ,
1032                                        tui_term_width (),
1033                                        0,
1034                                        src_height - 1,
1035                                        DONT_BOX_WINDOW);
1036         }
1037       else
1038         {
1039           init_gen_win_info (locator,
1040                              LOCATOR_WIN,
1041                              2 /* 1 */ ,
1042                              tui_term_width (),
1043                              0,
1044                              src_height - 1);
1045           (*win_info_ptr)->detail.source_info.has_locator = TRUE;
1046           init_gen_win_info (&(*win_info_ptr)->generic,
1047                              (*win_info_ptr)->generic.type,
1048                              src_height - 1,
1049                              (*win_info_ptr)->generic.width,
1050                              (*win_info_ptr)->detail.source_info.execution_info->width,
1051                              0);
1052           init_gen_win_info ((*win_info_ptr)->detail.source_info.execution_info,
1053                              EXEC_INFO_WIN,
1054                              src_height - 1,
1055                              3,
1056                              0,
1057                              0);
1058           (*win_info_ptr)->can_highlight = TRUE;
1059           tui_make_visible (&(*win_info_ptr)->generic);
1060           tui_make_visible ((*win_info_ptr)->detail.source_info.execution_info);
1061         }
1062       if ((*win_info_ptr) != NULL)
1063         {
1064           (*win_info_ptr)->detail.source_info.has_locator = TRUE;
1065           tui_make_visible (locator);
1066           tui_show_locator_content ();
1067           tui_show_source_content (*win_info_ptr);
1068
1069           if (TUI_CMD_WIN == NULL)
1070             {
1071               make_command_window (&TUI_CMD_WIN, cmd_height, src_height);
1072               tui_refresh_win (&TUI_CMD_WIN->generic);
1073             }
1074           else
1075             {
1076               init_gen_win_info (&TUI_CMD_WIN->generic,
1077                                  TUI_CMD_WIN->generic.type,
1078                                  TUI_CMD_WIN->generic.height,
1079                                  TUI_CMD_WIN->generic.width,
1080                                  TUI_CMD_WIN->generic.origin.x,
1081                                  TUI_CMD_WIN->generic.origin.y);
1082               TUI_CMD_WIN->can_highlight = FALSE;
1083               tui_make_visible (&TUI_CMD_WIN->generic);
1084             }
1085         }
1086       tui_set_current_layout_to (layout_type);
1087     }
1088 }