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    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 "command.h"
  25 #include "symtab.h"
  26 #include "frame.h"
  27 #include "source.h"
  28 #include <ctype.h>
  29
  30 #include "tui/tui.h"
  31 #include "tui/tui-data.h"
  32 #include "tui/tui-windata.h"
  33 #include "tui/tui-wingeneral.h"
  34 #include "tui/tui-stack.h"
  35 #include "tui/tui-regs.h"
  36 #include "tui/tui-win.h"
  37 #include "tui/tui-winsource.h"
  38 #include "tui/tui-disasm.h"
  39
  40 #include "gdb_string.h"
  41 #include "gdb_curses.h"
  42
  43 /*******************************
  44 ** Static Local Decls
  45 ********************************/
  46 static void show_layout (enum tui_layout_type);
  47 static void init_gen_win_info (struct tui_gen_win_info *,
  48                                enum tui_win_type,
  49                                int, int, int, int);
  50 static void *init_and_make_win (void *, enum tui_win_type,
  51                                 int, int, int, int, int);
  52 static void show_source_or_disasm_and_command (enum tui_layout_type);
  53 static void make_source_or_disasm_window (struct tui_win_info **,
  54                                           enum tui_win_type,
  55                                           int, int);
  56 static void make_command_window (struct tui_win_info **, int, int);
  57 static void make_source_window (struct tui_win_info **, int, int);
  58 static void make_disasm_window (struct tui_win_info **, int, int);
  59 static void make_data_window (struct tui_win_info **, int, int);
  60 static void show_source_command (void);
  61 static void show_disasm_command (void);
  62 static void show_source_disasm_command (void);
  63 static void show_data (enum tui_layout_type);
  64 static enum tui_layout_type next_layout (void);
  65 static enum tui_layout_type prev_layout (void);
  66 static void tui_layout_command (char *, int);
  67 static void tui_toggle_layout_command (char *, int);
  68 static void tui_toggle_split_layout_command (char *, int);
  69 static CORE_ADDR extract_display_start_addr (void);
  70 static void tui_handle_xdb_layout (struct tui_layout_def *);
  71
  72
  73 /***************************************
  74 ** DEFINITIONS
  75 ***************************************/
  76
  77 #define LAYOUT_USAGE     "Usage: layout prev | next | <layout_name> \n"
  78
  79 /* Show the screen layout defined.  */
  80 static void
  81 show_layout (enum tui_layout_type layout)
  82 {
  83   enum tui_layout_type cur_layout = tui_current_layout ();
  84
  85   if (layout != cur_layout)
  86     {
  87       /* Since the new layout may cause changes in window size, we
  88          should free the content and reallocate on next display of
  89          source/asm.  */
  90       tui_free_all_source_wins_content ();
  91       tui_clear_source_windows ();
  92       if (layout == SRC_DATA_COMMAND
  93           || layout == DISASSEM_DATA_COMMAND)
  94         {
  95           show_data (layout);
  96           tui_refresh_all (tui_win_list);
  97         }
  98       else
  99         {
 100           /* First make the current layout be invisible.  */
 101           tui_make_all_invisible ();
 102           tui_make_invisible (tui_locator_win_info_ptr ());
 103
 104           switch (layout)
 105             {
 106               /* Now show the new layout.  */
 107             case SRC_COMMAND:
 108               show_source_command ();
 109               tui_add_to_source_windows (TUI_SRC_WIN);
 110               break;
 111             case DISASSEM_COMMAND:
 112               show_disasm_command ();
 113               tui_add_to_source_windows (TUI_DISASM_WIN);
 114               break;
 115             case SRC_DISASSEM_COMMAND:
 116               show_source_disasm_command ();
 117               tui_add_to_source_windows (TUI_SRC_WIN);
 118               tui_add_to_source_windows (TUI_DISASM_WIN);
 119               break;
 120             default:
 121               break;
 122             }
 123         }
 124     }
 125 }
 126
 127
 128 /* Function to set the layout to SRC_COMMAND, DISASSEM_COMMAND,
 129    SRC_DISASSEM_COMMAND, SRC_DATA_COMMAND, or DISASSEM_DATA_COMMAND.
 130    If the layout is SRC_DATA_COMMAND, DISASSEM_DATA_COMMAND, or
 131    UNDEFINED_LAYOUT, then the data window is populated according to
 132    regs_display_type.  */
 133 enum tui_status
 134 tui_set_layout (enum tui_layout_type layout_type,
 135                 enum tui_register_display_type regs_display_type)
 136 {
 137   enum tui_status status = TUI_SUCCESS;
 138
 139   if (layout_type != UNDEFINED_LAYOUT
 140       || regs_display_type != TUI_UNDEFINED_REGS)
 141     {
 142       enum tui_layout_type cur_layout = tui_current_layout (),
 143         new_layout = UNDEFINED_LAYOUT;
 144       int regs_populate = FALSE;
 145       CORE_ADDR addr = extract_display_start_addr ();
 146       struct tui_win_info *win_with_focus = tui_win_with_focus ();
 147       struct tui_layout_def *layout_def = tui_layout_def ();
 148
 149
 150       if (layout_type == UNDEFINED_LAYOUT
 151           && regs_display_type != TUI_UNDEFINED_REGS)
 152         {
 153           if (cur_layout == SRC_DISASSEM_COMMAND)
 154             new_layout = DISASSEM_DATA_COMMAND;
 155           else if (cur_layout == SRC_COMMAND
 156                    || cur_layout == SRC_DATA_COMMAND)
 157             new_layout = SRC_DATA_COMMAND;
 158           else if (cur_layout == DISASSEM_COMMAND
 159                    || cur_layout == DISASSEM_DATA_COMMAND)
 160             new_layout = DISASSEM_DATA_COMMAND;
 161         }
 162       else
 163         new_layout = layout_type;
 164
 165       regs_populate = (new_layout == SRC_DATA_COMMAND
 166                        || new_layout == DISASSEM_DATA_COMMAND
 167                        || regs_display_type != TUI_UNDEFINED_REGS);
 168       if (new_layout != cur_layout
 169           || regs_display_type != TUI_UNDEFINED_REGS)
 170         {
 171           if (new_layout != cur_layout)
 172             {
 173               show_layout (new_layout);
 174
 175               /* Now determine where focus should be.  */
 176               if (win_with_focus != TUI_CMD_WIN)
 177                 {
 178                   switch (new_layout)
 179                     {
 180                     case SRC_COMMAND:
 181                       tui_set_win_focus_to (TUI_SRC_WIN);
 182                       layout_def->display_mode = SRC_WIN;
 183                       layout_def->split = FALSE;
 184                       break;
 185                     case DISASSEM_COMMAND:
 186                       /* The previous layout was not showing code.
 187                          This can happen if there is no source
 188                          available:
 189
 190                          1. if the source file is in another dir OR
 191                          2. if target was compiled without -g
 192                          We still want to show the assembly though!  */
 193
 194                       addr = tui_get_begin_asm_address ();
 195                       tui_set_win_focus_to (TUI_DISASM_WIN);
 196                       layout_def->display_mode = DISASSEM_WIN;
 197                       layout_def->split = FALSE;
 198                       break;
 199                     case SRC_DISASSEM_COMMAND:
 200                       /* The previous layout was not showing code.
 201                          This can happen if there is no source
 202                          available:
 203
 204                          1. if the source file is in another dir OR
 205                          2. if target was compiled without -g
 206                          We still want to show the assembly though!  */
 207
 208                       addr = tui_get_begin_asm_address ();
 209                       if (win_with_focus == TUI_SRC_WIN)
 210                         tui_set_win_focus_to (TUI_SRC_WIN);
 211                       else
 212                         tui_set_win_focus_to (TUI_DISASM_WIN);
 213                       layout_def->split = TRUE;
 214                       break;
 215                     case SRC_DATA_COMMAND:
 216                       if (win_with_focus != TUI_DATA_WIN)
 217                         tui_set_win_focus_to (TUI_SRC_WIN);
 218                       else
 219                         tui_set_win_focus_to (TUI_DATA_WIN);
 220                       layout_def->display_mode = SRC_WIN;
 221                       layout_def->split = FALSE;
 222                       break;
 223                     case DISASSEM_DATA_COMMAND:
 224                       /* The previous layout was not showing code.
 225                          This can happen if there is no source
 226                          available:
 227
 228                          1. if the source file is in another dir OR
 229                          2. if target was compiled without -g
 230                          We still want to show the assembly though!  */
 231
 232                       addr = tui_get_begin_asm_address ();
 233                       if (win_with_focus != TUI_DATA_WIN)
 234                         tui_set_win_focus_to (TUI_DISASM_WIN);
 235                       else
 236                         tui_set_win_focus_to (TUI_DATA_WIN);
 237                       layout_def->display_mode = DISASSEM_WIN;
 238                       layout_def->split = FALSE;
 239                       break;
 240                     default:
 241                       break;
 242                     }
 243                 }
 244               /*
 245                * Now update the window content.
 246                */
 247               if (!regs_populate
 248                   && (new_layout == SRC_DATA_COMMAND
 249                       || new_layout == DISASSEM_DATA_COMMAND))
 250                 tui_display_all_data ();
 251
 252               tui_update_source_windows_with_addr (addr);
 253             }
 254           if (regs_populate)
 255             {
 256               tui_show_registers (TUI_DATA_WIN->detail.data_display_info.current_group);
 257             }
 258         }
 259     }
 260   else
 261     status = TUI_FAILURE;
 262
 263   return status;
 264 }
 265
 266 /* Add the specified window to the layout in a logical way.  This
 267    means setting up the most logical layout given the window to be
 268    added.  */
 269 void
 270 tui_add_win_to_layout (enum tui_win_type type)
 271 {
 272   enum tui_layout_type cur_layout = tui_current_layout ();
 273
 274   switch (type)
 275     {
 276     case SRC_WIN:
 277       if (cur_layout != SRC_COMMAND
 278           && cur_layout != SRC_DISASSEM_COMMAND
 279           && cur_layout != SRC_DATA_COMMAND)
 280         {
 281           tui_clear_source_windows_detail ();
 282           if (cur_layout == DISASSEM_DATA_COMMAND)
 283             show_layout (SRC_DATA_COMMAND);
 284           else
 285             show_layout (SRC_COMMAND);
 286         }
 287       break;
 288     case DISASSEM_WIN:
 289       if (cur_layout != DISASSEM_COMMAND
 290           && cur_layout != SRC_DISASSEM_COMMAND
 291           && cur_layout != DISASSEM_DATA_COMMAND)
 292         {
 293           tui_clear_source_windows_detail ();
 294           if (cur_layout == SRC_DATA_COMMAND)
 295             show_layout (DISASSEM_DATA_COMMAND);
 296           else
 297             show_layout (DISASSEM_COMMAND);
 298         }
 299       break;
 300     case DATA_WIN:
 301       if (cur_layout != SRC_DATA_COMMAND
 302           && cur_layout != DISASSEM_DATA_COMMAND)
 303         {
 304           if (cur_layout == DISASSEM_COMMAND)
 305             show_layout (DISASSEM_DATA_COMMAND);
 306           else
 307             show_layout (SRC_DATA_COMMAND);
 308         }
 309       break;
 310     default:
 311       break;
 312     }
 313 }
 314
 315
 316 /* Answer the height of a window.  If it hasn't been created yet,
 317    answer what the height of a window would be based upon its type and
 318    the layout.  */
 319 int
 320 tui_default_win_height (enum tui_win_type type,
 321                         enum tui_layout_type layout)
 322 {
 323   int h;
 324
 325   if (tui_win_list[type] != (struct tui_win_info *) NULL)
 326     h = tui_win_list[type]->generic.height;
 327   else
 328     {
 329       switch (layout)
 330         {
 331         case SRC_COMMAND:
 332         case DISASSEM_COMMAND:
 333           if (TUI_CMD_WIN == NULL)
 334             h = tui_term_height () / 2;
 335           else
 336             h = tui_term_height () - TUI_CMD_WIN->generic.height;
 337           break;
 338         case SRC_DISASSEM_COMMAND:
 339         case SRC_DATA_COMMAND:
 340         case DISASSEM_DATA_COMMAND:
 341           if (TUI_CMD_WIN == NULL)
 342             h = tui_term_height () / 3;
 343           else
 344             h = (tui_term_height () - TUI_CMD_WIN->generic.height) / 2;
 345           break;
 346         default:
 347           h = 0;
 348           break;
 349         }
 350     }
 351
 352   return h;
 353 }
 354
 355
 356 /* Answer the height of a window.  If it hasn't been created yet,
 357    answer what the height of a window would be based upon its type and
 358    the layout.  */
 359 int
 360 tui_default_win_viewport_height (enum tui_win_type type,
 361                                  enum tui_layout_type layout)
 362 {
 363   int h;
 364
 365   h = tui_default_win_height (type, layout);
 366
 367   if (tui_win_list[type] == TUI_CMD_WIN)
 368     h -= 1;
 369   else
 370     h -= 2;
 371
 372   return h;
 373 }
 374
 375
 376 /* Function to initialize gdb commands, for tui window layout
 377    manipulation.  */
 378 void
 379 _initialize_tui_layout (void)
 380 {
 381   add_com ("layout", class_tui, tui_layout_command, _("\
 382 Change the layout of windows.\n\
 383 Usage: layout prev | next | <layout_name> \n\
 384 Layout names are:\n\
 385    src   : Displays source and command windows.\n\
 386    asm   : Displays disassembly and command windows.\n\
 387    split : Displays source, disassembly and command windows.\n\
 388    regs  : Displays register window. If existing layout\n\
 389            is source/command or assembly/command, the \n\
 390            register window is displayed. If the\n\
 391            source/assembly/command (split) is displayed, \n\
 392            the register window is displayed with \n\
 393            the window that has current logical focus.\n"));
 394   if (xdb_commands)
 395     {
 396       add_com ("td", class_tui, tui_toggle_layout_command, _("\
 397 Toggle between Source/Command and Disassembly/Command layouts.\n"));
 398       add_com ("ts", class_tui, tui_toggle_split_layout_command, _("\
 399 Toggle between Source/Command or Disassembly/Command and \n\
 400 Source/Disassembly/Command layouts.\n"));
 401     }
 402 }
 403
 404
 405 /*************************
 406 ** STATIC LOCAL FUNCTIONS
 407 **************************/
 408
 409
 410 /* Function to set the layout to SRC, ASM, SPLIT, NEXT, PREV, DATA,
 411    REGS, $REGS, $GREGS, $FREGS, $SREGS.  */
 412 enum tui_status
 413 tui_set_layout_for_display_command (const char *layout_name)
 414 {
 415   enum tui_status status = TUI_SUCCESS;
 416
 417   if (layout_name != (char *) NULL)
 418     {
 419       int i;
 420       char *buf_ptr;
 421       enum tui_layout_type new_layout = UNDEFINED_LAYOUT;
 422       enum tui_register_display_type dpy_type = TUI_UNDEFINED_REGS;
 423       enum tui_layout_type cur_layout = tui_current_layout ();
 424
 425       buf_ptr = (char *) xstrdup (layout_name);
 426       for (i = 0; (i < strlen (layout_name)); i++)
 427         buf_ptr[i] = toupper (buf_ptr[i]);
 428
 429       /* First check for ambiguous input.  */
 430       if (strlen (buf_ptr) <= 1
 431           && (*buf_ptr == 'S' || *buf_ptr == '$'))
 432         {
 433           warning (_("Ambiguous command input."));
 434           status = TUI_FAILURE;
 435         }
 436       else
 437         {
 438           if (subset_compare (buf_ptr, "SRC"))
 439             new_layout = SRC_COMMAND;
 440           else if (subset_compare (buf_ptr, "ASM"))
 441             new_layout = DISASSEM_COMMAND;
 442           else if (subset_compare (buf_ptr, "SPLIT"))
 443             new_layout = SRC_DISASSEM_COMMAND;
 444           else if (subset_compare (buf_ptr, "REGS")
 445                    || subset_compare (buf_ptr, TUI_GENERAL_SPECIAL_REGS_NAME)
 446                    || subset_compare (buf_ptr, TUI_GENERAL_REGS_NAME)
 447                    || subset_compare (buf_ptr, TUI_FLOAT_REGS_NAME)
 448                    || subset_compare (buf_ptr, TUI_SPECIAL_REGS_NAME))
 449             {
 450               if (cur_layout == SRC_COMMAND
 451                   || cur_layout == SRC_DATA_COMMAND)
 452                 new_layout = SRC_DATA_COMMAND;
 453               else
 454                 new_layout = DISASSEM_DATA_COMMAND;
 455
 456               /* Could ifdef out the following code. when compile with
 457                  -z, there are null pointer references that cause a
 458                  core dump if 'layout regs' is the first layout
 459                  command issued by the user. HP has asked us to hook
 460                  up this code.  - edie epstein  */
 461               if (subset_compare (buf_ptr, TUI_FLOAT_REGS_NAME))
 462                 {
 463                   if (TUI_DATA_WIN->detail.data_display_info.regs_display_type != TUI_SFLOAT_REGS
 464                       && TUI_DATA_WIN->detail.data_display_info.regs_display_type != TUI_DFLOAT_REGS)
 465                     dpy_type = TUI_SFLOAT_REGS;
 466                   else
 467                     dpy_type =
 468                       TUI_DATA_WIN->detail.data_display_info.regs_display_type;
 469                 }
 470               else if (subset_compare (buf_ptr,
 471                                       TUI_GENERAL_SPECIAL_REGS_NAME))
 472                 dpy_type = TUI_GENERAL_AND_SPECIAL_REGS;
 473               else if (subset_compare (buf_ptr, TUI_GENERAL_REGS_NAME))
 474                 dpy_type = TUI_GENERAL_REGS;
 475               else if (subset_compare (buf_ptr, TUI_SPECIAL_REGS_NAME))
 476                 dpy_type = TUI_SPECIAL_REGS;
 477               else if (TUI_DATA_WIN)
 478                 {
 479                   if (TUI_DATA_WIN->detail.data_display_info.regs_display_type !=
 480                       TUI_UNDEFINED_REGS)
 481                     dpy_type =
 482                       TUI_DATA_WIN->detail.data_display_info.regs_display_type;
 483                   else
 484                     dpy_type = TUI_GENERAL_REGS;
 485                 }
 486
 487               /* End of potential ifdef.
 488                */
 489
 490               /* If ifdefed out code above, then assume that the user
 491                  wishes to display the general purpose registers .
 492               */
 493
 494               /* dpy_type = TUI_GENERAL_REGS; */
 495             }
 496           else if (subset_compare (buf_ptr, "NEXT"))
 497             new_layout = next_layout ();
 498           else if (subset_compare (buf_ptr, "PREV"))
 499             new_layout = prev_layout ();
 500           else
 501             status = TUI_FAILURE;
 502
 503           tui_set_layout (new_layout, dpy_type);
 504         }
 505       xfree (buf_ptr);
 506     }
 507   else
 508     status = TUI_FAILURE;
 509
 510   return status;
 511 }
 512
 513
 514 static CORE_ADDR
 515 extract_display_start_addr (void)
 516 {
 517   enum tui_layout_type cur_layout = tui_current_layout ();
 518   CORE_ADDR addr;
 519   CORE_ADDR pc;
 520   struct symtab_and_line cursal = get_current_source_symtab_and_line ();
 521
 522   switch (cur_layout)
 523     {
 524     case SRC_COMMAND:
 525     case SRC_DATA_COMMAND:
 526       find_line_pc (cursal.symtab,
 527                     TUI_SRC_WIN->detail.source_info.start_line_or_addr.u.line_no,
 528                     &pc);
 529       addr = pc;
 530       break;
 531     case DISASSEM_COMMAND:
 532     case SRC_DISASSEM_COMMAND:
 533     case DISASSEM_DATA_COMMAND:
 534       addr = TUI_DISASM_WIN->detail.source_info.start_line_or_addr.u.addr;
 535       break;
 536     default:
 537       addr = 0;
 538       break;
 539     }
 540
 541   return addr;
 542 }
 543
 544
 545 static void
 546 tui_handle_xdb_layout (struct tui_layout_def *layout_def)
 547 {
 548   if (layout_def->split)
 549     {
 550       tui_set_layout (SRC_DISASSEM_COMMAND, TUI_UNDEFINED_REGS);
 551       tui_set_win_focus_to (tui_win_list[layout_def->display_mode]);
 552     }
 553   else
 554     {
 555       if (layout_def->display_mode == SRC_WIN)
 556         tui_set_layout (SRC_COMMAND, TUI_UNDEFINED_REGS);
 557       else
 558         tui_set_layout (DISASSEM_DATA_COMMAND, layout_def->regs_display_type);
 559     }
 560 }
 561
 562
 563 static void
 564 tui_toggle_layout_command (char *arg, int from_tty)
 565 {
 566   struct tui_layout_def *layout_def = tui_layout_def ();
 567
 568   /* Make sure the curses mode is enabled.  */
 569   tui_enable ();
 570   if (layout_def->display_mode == SRC_WIN)
 571     layout_def->display_mode = DISASSEM_WIN;
 572   else
 573     layout_def->display_mode = SRC_WIN;
 574
 575   if (!layout_def->split)
 576     tui_handle_xdb_layout (layout_def);
 577 }
 578
 579
 580 static void
 581 tui_toggle_split_layout_command (char *arg, int from_tty)
 582 {
 583   struct tui_layout_def *layout_def = tui_layout_def ();
 584
 585   /* Make sure the curses mode is enabled.  */
 586   tui_enable ();
 587   layout_def->split = (!layout_def->split);
 588   tui_handle_xdb_layout (layout_def);
 589 }
 590
 591
 592 static void
 593 tui_layout_command (char *arg, int from_tty)
 594 {
 595   /* Make sure the curses mode is enabled.  */
 596   tui_enable ();
 597
 598   /* Switch to the selected layout.  */
 599   if (tui_set_layout_for_display_command (arg) != TUI_SUCCESS)
 600     warning (_("Invalid layout specified.\n%s"), LAYOUT_USAGE);
 601
 602 }
 603
 604 /* Answer the previous layout to cycle to.  */
 605 static enum tui_layout_type
 606 next_layout (void)
 607 {
 608   enum tui_layout_type new_layout;
 609
 610   new_layout = tui_current_layout ();
 611   if (new_layout == UNDEFINED_LAYOUT)
 612     new_layout = SRC_COMMAND;
 613   else
 614     {
 615       new_layout++;
 616       if (new_layout == UNDEFINED_LAYOUT)
 617         new_layout = SRC_COMMAND;
 618     }
 619
 620   return new_layout;
 621 }
 622
 623
 624 /* Answer the next layout to cycle to.  */
 625 static enum tui_layout_type
 626 prev_layout (void)
 627 {
 628   enum tui_layout_type new_layout;
 629
 630   new_layout = tui_current_layout ();
 631   if (new_layout == SRC_COMMAND)
 632     new_layout = DISASSEM_DATA_COMMAND;
 633   else
 634     {
 635       new_layout--;
 636       if (new_layout == UNDEFINED_LAYOUT)
 637         new_layout = DISASSEM_DATA_COMMAND;
 638     }
 639
 640   return new_layout;
 641 }
 642
 643
 644
 645 static void
 646 make_command_window (struct tui_win_info **win_info_ptr,
 647                      int height, int origin_y)
 648 {
 649   *win_info_ptr = init_and_make_win (*win_info_ptr,
 650                                      CMD_WIN,
 651                                      height,
 652                                      tui_term_width (),
 653                                      0,
 654                                      origin_y,
 655                                      DONT_BOX_WINDOW);
 656
 657   (*win_info_ptr)->can_highlight = FALSE;
 658 }
 659
 660
 661 /* make_source_window().
 662  */
 663 static void
 664 make_source_window (struct tui_win_info **win_info_ptr,
 665                     int height, int origin_y)
 666 {
 667   make_source_or_disasm_window (win_info_ptr, SRC_WIN, height, origin_y);
 668
 669   return;
 670 }                               /* make_source_window */
 671
 672
 673 /* make_disasm_window().
 674  */
 675 static void
 676 make_disasm_window (struct tui_win_info **win_info_ptr,
 677                     int height, int origin_y)
 678 {
 679   make_source_or_disasm_window (win_info_ptr, DISASSEM_WIN, height, origin_y);
 680
 681   return;
 682 }                               /* make_disasm_window */
 683
 684
 685 static void
 686 make_data_window (struct tui_win_info **win_info_ptr,
 687                   int height, int origin_y)
 688 {
 689   *win_info_ptr = init_and_make_win (*win_info_ptr,
 690                                      DATA_WIN,
 691                                      height,
 692                                      tui_term_width (),
 693                                      0,
 694                                      origin_y,
 695                                      BOX_WINDOW);
 696 }
 697
 698
 699
 700 /* Show the Source/Command layout.  */
 701 static void
 702 show_source_command (void)
 703 {
 704   show_source_or_disasm_and_command (SRC_COMMAND);
 705 }
 706
 707
 708 /* Show the Dissassem/Command layout.  */
 709 static void
 710 show_disasm_command (void)
 711 {
 712   show_source_or_disasm_and_command (DISASSEM_COMMAND);
 713 }
 714
 715
 716 /* Show the Source/Disassem/Command layout.  */
 717 static void
 718 show_source_disasm_command (void)
 719 {
 720   if (tui_current_layout () != SRC_DISASSEM_COMMAND)
 721     {
 722       int cmd_height, src_height, asm_height;
 723
 724       if (TUI_CMD_WIN != NULL)
 725         cmd_height = TUI_CMD_WIN->generic.height;
 726       else
 727         cmd_height = tui_term_height () / 3;
 728
 729       src_height = (tui_term_height () - cmd_height) / 2;
 730       asm_height = tui_term_height () - (src_height + cmd_height);
 731
 732       if (TUI_SRC_WIN == NULL)
 733         make_source_window (&TUI_SRC_WIN, src_height, 0);
 734       else
 735         {
 736           init_gen_win_info (&TUI_SRC_WIN->generic,
 737                              TUI_SRC_WIN->generic.type,
 738                              src_height,
 739                              TUI_SRC_WIN->generic.width,
 740                              TUI_SRC_WIN->detail.source_info.execution_info->width,
 741                              0);
 742           TUI_SRC_WIN->can_highlight = TRUE;
 743           init_gen_win_info (TUI_SRC_WIN->detail.source_info.execution_info,
 744                              EXEC_INFO_WIN,
 745                              src_height,
 746                              3,
 747                              0,
 748                              0);
 749           tui_make_visible (&TUI_SRC_WIN->generic);
 750           tui_make_visible (TUI_SRC_WIN->detail.source_info.execution_info);
 751           TUI_SRC_WIN->detail.source_info.has_locator = FALSE;;
 752         }
 753       if (TUI_SRC_WIN != NULL)
 754         {
 755           struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
 756
 757           tui_show_source_content (TUI_SRC_WIN);
 758           if (TUI_DISASM_WIN == NULL)
 759             {
 760               make_disasm_window (&TUI_DISASM_WIN, asm_height, src_height - 1);
 761               locator = init_and_make_win (locator,
 762                                            LOCATOR_WIN,
 763                                            2 /* 1 */ ,
 764                                            tui_term_width (),
 765                                            0,
 766                                            (src_height + asm_height) - 1,
 767                                            DONT_BOX_WINDOW);
 768             }
 769           else
 770             {
 771               init_gen_win_info (locator,
 772                                  LOCATOR_WIN,
 773                                  2 /* 1 */ ,
 774                                  tui_term_width (),
 775                                  0,
 776                                  (src_height + asm_height) - 1);
 777               TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
 778               init_gen_win_info (&TUI_DISASM_WIN->generic,
 779                                  TUI_DISASM_WIN->generic.type,
 780                                  asm_height,
 781                                  TUI_DISASM_WIN->generic.width,
 782                                  TUI_DISASM_WIN->detail.source_info.execution_info->width,
 783                                  src_height - 1);
 784               init_gen_win_info (TUI_DISASM_WIN->detail.source_info.execution_info,
 785                                  EXEC_INFO_WIN,
 786                                  asm_height,
 787                                  3,
 788                                  0,
 789                                  src_height - 1);
 790               TUI_DISASM_WIN->can_highlight = TRUE;
 791               tui_make_visible (&TUI_DISASM_WIN->generic);
 792               tui_make_visible (TUI_DISASM_WIN->detail.source_info.execution_info);
 793             }
 794           if (TUI_DISASM_WIN != NULL)
 795             {
 796               TUI_SRC_WIN->detail.source_info.has_locator = FALSE;
 797               TUI_DISASM_WIN->detail.source_info.has_locator = TRUE;
 798               tui_make_visible (locator);
 799               tui_show_locator_content ();
 800               tui_show_source_content (TUI_DISASM_WIN);
 801
 802               if (TUI_CMD_WIN == NULL)
 803                 make_command_window (&TUI_CMD_WIN,
 804                                      cmd_height,
 805                                      tui_term_height () - cmd_height);
 806               else
 807                 {
 808                   init_gen_win_info (&TUI_CMD_WIN->generic,
 809                                      TUI_CMD_WIN->generic.type,
 810                                      TUI_CMD_WIN->generic.height,
 811                                      TUI_CMD_WIN->generic.width,
 812                                      0,
 813                                      TUI_CMD_WIN->generic.origin.y);
 814                   TUI_CMD_WIN->can_highlight = FALSE;
 815                   tui_make_visible (&TUI_CMD_WIN->generic);
 816                 }
 817               if (TUI_CMD_WIN != NULL)
 818                 tui_refresh_win (&TUI_CMD_WIN->generic);
 819             }
 820         }
 821       tui_set_current_layout_to (SRC_DISASSEM_COMMAND);
 822     }
 823 }
 824
 825
 826 /* Show the Source/Data/Command or the Dissassembly/Data/Command
 827    layout.  */
 828 static void
 829 show_data (enum tui_layout_type new_layout)
 830 {
 831   int total_height = (tui_term_height () - TUI_CMD_WIN->generic.height);
 832   int src_height, data_height;
 833   enum tui_win_type win_type;
 834   struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
 835
 836
 837   data_height = total_height / 2;
 838   src_height = total_height - data_height;
 839   tui_make_all_invisible ();
 840   tui_make_invisible (locator);
 841   make_data_window (&TUI_DATA_WIN, data_height, 0);
 842   TUI_DATA_WIN->can_highlight = TRUE;
 843   if (new_layout == SRC_DATA_COMMAND)
 844     win_type = SRC_WIN;
 845   else
 846     win_type = DISASSEM_WIN;
 847   if (tui_win_list[win_type] == NULL)
 848     {
 849       if (win_type == SRC_WIN)
 850         make_source_window (&tui_win_list[win_type], src_height, data_height - 1);
 851       else
 852         make_disasm_window (&tui_win_list[win_type], src_height, data_height - 1);
 853       locator = init_and_make_win (locator,
 854                                    LOCATOR_WIN,
 855                                    2 /* 1 */ ,
 856                                    tui_term_width (),
 857                                    0,
 858                                    total_height - 1,
 859                                    DONT_BOX_WINDOW);
 860     }
 861   else
 862     {
 863       init_gen_win_info (&tui_win_list[win_type]->generic,
 864                          tui_win_list[win_type]->generic.type,
 865                          src_height,
 866                          tui_win_list[win_type]->generic.width,
 867                          tui_win_list[win_type]->detail.source_info.execution_info->width,
 868                          data_height - 1);
 869       init_gen_win_info (tui_win_list[win_type]->detail.source_info.execution_info,
 870                          EXEC_INFO_WIN,
 871                          src_height,
 872                          3,
 873                          0,
 874                          data_height - 1);
 875       tui_make_visible (&tui_win_list[win_type]->generic);
 876       tui_make_visible (tui_win_list[win_type]->detail.source_info.execution_info);
 877       init_gen_win_info (locator,
 878                          LOCATOR_WIN,
 879                          2 /* 1 */ ,
 880                          tui_term_width (),
 881                          0,
 882                          total_height - 1);
 883     }
 884   tui_win_list[win_type]->detail.source_info.has_locator = TRUE;
 885   tui_make_visible (locator);
 886   tui_show_locator_content ();
 887   tui_add_to_source_windows (tui_win_list[win_type]);
 888   tui_set_current_layout_to (new_layout);
 889 }
 890
 891 /* init_gen_win_info().
 892  */
 893 static void
 894 init_gen_win_info (struct tui_gen_win_info *win_info,
 895                    enum tui_win_type type,
 896                    int height, int width,
 897                    int origin_x, int origin_y)
 898 {
 899   int h = height;
 900
 901   win_info->type = type;
 902   win_info->width = width;
 903   win_info->height = h;
 904   if (h > 1)
 905     {
 906       win_info->viewport_height = h - 1;
 907       if (win_info->type != CMD_WIN)
 908         win_info->viewport_height--;
 909     }
 910   else
 911     win_info->viewport_height = 1;
 912   win_info->origin.x = origin_x;
 913   win_info->origin.y = origin_y;
 914
 915   return;
 916 }                               /* init_gen_win_info */
 917
 918 /* init_and_make_win().
 919  */
 920 static void *
 921 init_and_make_win (void *opaque_win_info,
 922                    enum tui_win_type win_type,
 923                    int height, int width,
 924                    int origin_x, int origin_y,
 925                    int box_it)
 926 {
 927   struct tui_gen_win_info *generic;
 928
 929   if (opaque_win_info == NULL)
 930     {
 931       if (tui_win_is_auxillary (win_type))
 932         opaque_win_info = (void *) tui_alloc_generic_win_info ();
 933       else
 934         opaque_win_info = (void *) tui_alloc_win_info (win_type);
 935     }
 936   if (tui_win_is_auxillary (win_type))
 937     generic = (struct tui_gen_win_info *) opaque_win_info;
 938   else
 939     generic = &((struct tui_win_info *) opaque_win_info)->generic;
 940
 941   if (opaque_win_info != NULL)
 942     {
 943       init_gen_win_info (generic, win_type, height, width, origin_x, origin_y);
 944       if (!tui_win_is_auxillary (win_type))
 945         {
 946           if (generic->type == CMD_WIN)
 947             ((struct tui_win_info *) opaque_win_info)->can_highlight = FALSE;
 948           else
 949             ((struct tui_win_info *) opaque_win_info)->can_highlight = TRUE;
 950         }
 951       tui_make_window (generic, box_it);
 952     }
 953   return opaque_win_info;
 954 }
 955
 956
 957 static void
 958 make_source_or_disasm_window (struct tui_win_info **win_info_ptr,
 959                               enum tui_win_type type,
 960                               int height, int origin_y)
 961 {
 962   struct tui_gen_win_info *execution_info = (struct tui_gen_win_info *) NULL;
 963
 964   /* Create the exeuction info window.  */
 965   if (type == SRC_WIN)
 966     execution_info = tui_source_exec_info_win_ptr ();
 967   else
 968     execution_info = tui_disassem_exec_info_win_ptr ();
 969   execution_info = init_and_make_win (execution_info,
 970                                       EXEC_INFO_WIN,
 971                                       height,
 972                                       3,
 973                                       0,
 974                                       origin_y,
 975                                       DONT_BOX_WINDOW);
 976
 977   /* Now create the source window.  */
 978   *win_info_ptr = init_and_make_win (*win_info_ptr,
 979                                      type,
 980                                      height,
 981                                      tui_term_width () - execution_info->width,
 982                                      execution_info->width,
 983                                      origin_y,
 984                                      BOX_WINDOW);
 985
 986   (*win_info_ptr)->detail.source_info.execution_info = execution_info;
 987 }
 988
 989
 990 /* Show the Source/Command or the Disassem layout.  */
 991 static void
 992 show_source_or_disasm_and_command (enum tui_layout_type layout_type)
 993 {
 994   if (tui_current_layout () != layout_type)
 995     {
 996       struct tui_win_info **win_info_ptr;
 997       int src_height, cmd_height;
 998       struct tui_gen_win_info *locator = tui_locator_win_info_ptr ();
 999
1000       if (TUI_CMD_WIN != NULL)
1001         cmd_height = TUI_CMD_WIN->generic.height;
1002       else
1003         cmd_height = tui_term_height () / 3;
1004       src_height = tui_term_height () - cmd_height;
1005
1006       if (layout_type == SRC_COMMAND)
1007         win_info_ptr = &TUI_SRC_WIN;
1008       else
1009         win_info_ptr = &TUI_DISASM_WIN;
1010
1011       if ((*win_info_ptr) == NULL)
1012         {
1013           if (layout_type == SRC_COMMAND)
1014             make_source_window (win_info_ptr, src_height - 1, 0);
1015           else
1016             make_disasm_window (win_info_ptr, src_height - 1, 0);
1017           locator = init_and_make_win (locator,
1018                                        LOCATOR_WIN,
1019                                        2 /* 1 */ ,
1020                                        tui_term_width (),
1021                                        0,
1022                                        src_height - 1,
1023                                        DONT_BOX_WINDOW);
1024         }
1025       else
1026         {
1027           init_gen_win_info (locator,
1028                              LOCATOR_WIN,
1029                              2 /* 1 */ ,
1030                              tui_term_width (),
1031                              0,
1032                              src_height - 1);
1033           (*win_info_ptr)->detail.source_info.has_locator = TRUE;
1034           init_gen_win_info (&(*win_info_ptr)->generic,
1035                              (*win_info_ptr)->generic.type,
1036                              src_height - 1,
1037                              (*win_info_ptr)->generic.width,
1038                              (*win_info_ptr)->detail.source_info.execution_info->width,
1039                              0);
1040           init_gen_win_info ((*win_info_ptr)->detail.source_info.execution_info,
1041                              EXEC_INFO_WIN,
1042                              src_height - 1,
1043                              3,
1044                              0,
1045                              0);
1046           (*win_info_ptr)->can_highlight = TRUE;
1047           tui_make_visible (&(*win_info_ptr)->generic);
1048           tui_make_visible ((*win_info_ptr)->detail.source_info.execution_info);
1049         }
1050       if ((*win_info_ptr) != NULL)
1051         {
1052           (*win_info_ptr)->detail.source_info.has_locator = TRUE;
1053           tui_make_visible (locator);
1054           tui_show_locator_content ();
1055           tui_show_source_content (*win_info_ptr);
1056
1057           if (TUI_CMD_WIN == NULL)
1058             {
1059               make_command_window (&TUI_CMD_WIN, cmd_height, src_height);
1060               tui_refresh_win (&TUI_CMD_WIN->generic);
1061             }
1062           else
1063             {
1064               init_gen_win_info (&TUI_CMD_WIN->generic,
1065                                  TUI_CMD_WIN->generic.type,
1066                                  TUI_CMD_WIN->generic.height,
1067                                  TUI_CMD_WIN->generic.width,
1068                                  TUI_CMD_WIN->generic.origin.x,
1069                                  TUI_CMD_WIN->generic.origin.y);
1070               TUI_CMD_WIN->can_highlight = FALSE;
1071               tui_make_visible (&TUI_CMD_WIN->generic);
1072             }
1073         }
1074       tui_set_current_layout_to (layout_type);
1075     }
1076 }