gdb/tui/tui-data.c

   1 /* TUI data manipulation routines.
   2
   3    Copyright (C) 1998-2015 Free Software Foundation, Inc.
   4
   5    Contributed by Hewlett-Packard Company.
   6
   7    This file is part of GDB.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  21
  22 #include "defs.h"
  23 #include "symtab.h"
  24 #include "tui/tui.h"
  25 #include "tui/tui-data.h"
  26 #include "tui/tui-wingeneral.h"
  27 #include "gdb_curses.h"
  28
  29 /****************************
  30 ** GLOBAL DECLARATIONS
  31 ****************************/
  32 struct tui_win_info *(tui_win_list[MAX_MAJOR_WINDOWS]);
  33
  34 /***************************
  35 ** Private data
  36 ****************************/
  37 static enum tui_layout_type current_layout = UNDEFINED_LAYOUT;
  38 static int term_height, term_width;
  39 static struct tui_gen_win_info _locator;
  40 static struct tui_gen_win_info exec_info[2];
  41 static struct tui_win_info *src_win_list[2];
  42 static struct tui_list source_windows = {src_win_list, 0};
  43 static int default_tab_len = DEFAULT_TAB_LEN;
  44 static struct tui_win_info *win_with_focus = (struct tui_win_info *) NULL;
  45 static struct tui_layout_def layout_def = {
  46   SRC_WIN,                      /* DISPLAY_MODE */
  47   FALSE};                       /* SPLIT */
  48
  49 static int win_resized = FALSE;
  50
  51
  52 /*********************************
  53 ** Static function forward decls
  54 **********************************/
  55 static void free_content (tui_win_content,
  56                           int,
  57                           enum tui_win_type);
  58 static void free_content_elements (tui_win_content,
  59                                    int,
  60                                    enum tui_win_type);
  61
  62
  63
  64 /*********************************
  65 ** PUBLIC FUNCTIONS
  66 **********************************/
  67
  68 int
  69 tui_win_is_source_type (enum tui_win_type win_type)
  70 {
  71   return (win_type == SRC_WIN || win_type == DISASSEM_WIN);
  72 }
  73
  74 int
  75 tui_win_is_auxillary (enum tui_win_type win_type)
  76 {
  77   return (win_type > MAX_MAJOR_WINDOWS);
  78 }
  79
  80 int
  81 tui_win_has_locator (struct tui_win_info *win_info)
  82 {
  83   return (win_info != NULL
  84           && win_info->detail.source_info.has_locator);
  85 }
  86
  87 void
  88 tui_set_win_highlight (struct tui_win_info *win_info,
  89                        int highlight)
  90 {
  91   if (win_info != NULL)
  92     win_info->is_highlighted = highlight;
  93 }
  94
  95 /******************************************
  96 ** ACCESSORS & MUTATORS FOR PRIVATE DATA
  97 ******************************************/
  98
  99 /* Answer a whether the terminal window has been resized or not.  */
 100 int
 101 tui_win_resized (void)
 102 {
 103   return win_resized;
 104 }
 105
 106
 107 /* Set a whether the terminal window has been resized or not.  */
 108 void
 109 tui_set_win_resized_to (int resized)
 110 {
 111   win_resized = resized;
 112 }
 113
 114
 115 /* Answer a pointer to the current layout definition.  */
 116 struct tui_layout_def *
 117 tui_layout_def (void)
 118 {
 119   return &layout_def;
 120 }
 121
 122
 123 /* Answer the window with the logical focus.  */
 124 struct tui_win_info *
 125 tui_win_with_focus (void)
 126 {
 127   return win_with_focus;
 128 }
 129
 130
 131 /* Set the window that has the logical focus.  */
 132 void
 133 tui_set_win_with_focus (struct tui_win_info *win_info)
 134 {
 135   win_with_focus = win_info;
 136 }
 137
 138
 139 /* Answer the length in chars, of tabs.  */
 140 int
 141 tui_default_tab_len (void)
 142 {
 143   return default_tab_len;
 144 }
 145
 146
 147 /* Set the length in chars, of tabs.  */
 148 void
 149 tui_set_default_tab_len (int len)
 150 {
 151   default_tab_len = len;
 152 }
 153
 154
 155 /* Accessor for the current source window.  Usually there is only one
 156    source window (either source or disassembly), but both can be
 157    displayed at the same time.  */
 158 struct tui_list *
 159 tui_source_windows (void)
 160 {
 161   return &source_windows;
 162 }
 163
 164
 165 /* Clear the list of source windows.  Usually there is only one source
 166    window (either source or disassembly), but both can be displayed at
 167    the same time.  */
 168 void
 169 tui_clear_source_windows (void)
 170 {
 171   source_windows.list[0] = NULL;
 172   source_windows.list[1] = NULL;
 173   source_windows.count = 0;
 174 }
 175
 176
 177 /* Clear the pertinant detail in the source windows.  */
 178 void
 179 tui_clear_source_windows_detail (void)
 180 {
 181   int i;
 182
 183   for (i = 0; i < (tui_source_windows ())->count; i++)
 184     tui_clear_win_detail ((tui_source_windows ())->list[i]);
 185 }
 186
 187
 188 /* Add a window to the list of source windows.  Usually there is only
 189    one source window (either source or disassembly), but both can be
 190    displayed at the same time.  */
 191 void
 192 tui_add_to_source_windows (struct tui_win_info *win_info)
 193 {
 194   if (source_windows.count < 2)
 195     source_windows.list[source_windows.count++] = (void *) win_info;
 196 }
 197
 198
 199 /* Clear the pertinant detail in the windows.  */
 200 void
 201 tui_clear_win_detail (struct tui_win_info *win_info)
 202 {
 203   if (win_info != NULL)
 204     {
 205       switch (win_info->generic.type)
 206         {
 207         case SRC_WIN:
 208         case DISASSEM_WIN:
 209           win_info->detail.source_info.gdbarch = NULL;
 210           win_info->detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
 211           win_info->detail.source_info.start_line_or_addr.u.addr = 0;
 212           win_info->detail.source_info.horizontal_offset = 0;
 213           break;
 214         case CMD_WIN:
 215           win_info->detail.command_info.cur_line =
 216             win_info->detail.command_info.curch = 0;
 217           break;
 218         case DATA_WIN:
 219           win_info->detail.data_display_info.data_content =
 220             (tui_win_content) NULL;
 221           win_info->detail.data_display_info.data_content_count = 0;
 222           win_info->detail.data_display_info.regs_content =
 223             (tui_win_content) NULL;
 224           win_info->detail.data_display_info.regs_content_count = 0;
 225           win_info->detail.data_display_info.regs_column_count = 1;
 226           win_info->detail.data_display_info.display_regs = FALSE;
 227           break;
 228         default:
 229           break;
 230         }
 231     }
 232 }
 233
 234
 235 /* Accessor for the source execution info ptr.  */
 236 struct tui_gen_win_info *
 237 tui_source_exec_info_win_ptr (void)
 238 {
 239   return &exec_info[0];
 240 }
 241
 242
 243 /* Accessor for the disassem execution info ptr.  */
 244 struct tui_gen_win_info *
 245 tui_disassem_exec_info_win_ptr (void)
 246 {
 247   return &exec_info[1];
 248 }
 249
 250
 251 /* Accessor for the locator win info.  Answers a pointer to the static
 252    locator win info struct.  */
 253 struct tui_gen_win_info *
 254 tui_locator_win_info_ptr (void)
 255 {
 256   return &_locator;
 257 }
 258
 259
 260 /* Accessor for the term_height.  */
 261 int
 262 tui_term_height (void)
 263 {
 264   return term_height;
 265 }
 266
 267
 268 /* Mutator for the term height.  */
 269 void
 270 tui_set_term_height_to (int h)
 271 {
 272   term_height = h;
 273 }
 274
 275
 276 /* Accessor for the term_width.  */
 277 int
 278 tui_term_width (void)
 279 {
 280   return term_width;
 281 }
 282
 283
 284 /* Mutator for the term_width.  */
 285 void
 286 tui_set_term_width_to (int w)
 287 {
 288   term_width = w;
 289 }
 290
 291
 292 /* Accessor for the current layout.  */
 293 enum tui_layout_type
 294 tui_current_layout (void)
 295 {
 296   return current_layout;
 297 }
 298
 299
 300 /* Mutator for the current layout.  */
 301 void
 302 tui_set_current_layout_to (enum tui_layout_type new_layout)
 303 {
 304   current_layout = new_layout;
 305 }
 306
 307
 308 /*****************************
 309 ** OTHER PUBLIC FUNCTIONS
 310 *****************************/
 311
 312
 313 /* Answer the next window in the list, cycling back to the top if
 314    necessary.  */
 315 struct tui_win_info *
 316 tui_next_win (struct tui_win_info *cur_win)
 317 {
 318   int type = cur_win->generic.type;
 319   struct tui_win_info *next_win = (struct tui_win_info *) NULL;
 320
 321   if (cur_win->generic.type == CMD_WIN)
 322     type = SRC_WIN;
 323   else
 324     type = cur_win->generic.type + 1;
 325   while (type != cur_win->generic.type && (next_win == NULL))
 326     {
 327       if (tui_win_list[type]
 328           && tui_win_list[type]->generic.is_visible)
 329         next_win = tui_win_list[type];
 330       else
 331         {
 332           if (type == CMD_WIN)
 333             type = SRC_WIN;
 334           else
 335             type++;
 336         }
 337     }
 338
 339   return next_win;
 340 }
 341
 342
 343 /* Answer the prev window in the list, cycling back to the bottom if
 344    necessary.  */
 345 struct tui_win_info *
 346 tui_prev_win (struct tui_win_info *cur_win)
 347 {
 348   int type = cur_win->generic.type;
 349   struct tui_win_info *prev = (struct tui_win_info *) NULL;
 350
 351   if (cur_win->generic.type == SRC_WIN)
 352     type = CMD_WIN;
 353   else
 354     type = cur_win->generic.type - 1;
 355   while (type != cur_win->generic.type && (prev == NULL))
 356     {
 357       if (tui_win_list[type]
 358           && tui_win_list[type]->generic.is_visible)
 359         prev = tui_win_list[type];
 360       else
 361         {
 362           if (type == SRC_WIN)
 363             type = CMD_WIN;
 364           else
 365             type--;
 366         }
 367     }
 368
 369   return prev;
 370 }
 371
 372
 373 /* Answer the window represented by name.  */
 374 struct tui_win_info *
 375 tui_partial_win_by_name (char *name)
 376 {
 377   struct tui_win_info *win_info = (struct tui_win_info *) NULL;
 378
 379   if (name != (char *) NULL)
 380     {
 381       int i = 0;
 382
 383       while (i < MAX_MAJOR_WINDOWS && win_info == NULL)
 384         {
 385           if (tui_win_list[i] != 0)
 386             {
 387               const char *cur_name =
 388                 tui_win_name (&tui_win_list[i]->generic);
 389
 390               if (strlen (name) <= strlen (cur_name)
 391                   && startswith (cur_name, name))
 392                 win_info = tui_win_list[i];
 393             }
 394           i++;
 395         }
 396     }
 397
 398   return win_info;
 399 }
 400
 401
 402 /* Answer the name of the window.  */
 403 const char *
 404 tui_win_name (const struct tui_gen_win_info *win_info)
 405 {
 406   char *name = (char *) NULL;
 407
 408   switch (win_info->type)
 409     {
 410     case SRC_WIN:
 411       name = SRC_NAME;
 412       break;
 413     case CMD_WIN:
 414       name = CMD_NAME;
 415       break;
 416     case DISASSEM_WIN:
 417       name = DISASSEM_NAME;
 418       break;
 419     case DATA_WIN:
 420       name = DATA_NAME;
 421       break;
 422     default:
 423       name = "";
 424       break;
 425     }
 426
 427   return name;
 428 }
 429
 430
 431 void
 432 tui_initialize_static_data (void)
 433 {
 434   tui_init_generic_part (tui_source_exec_info_win_ptr ());
 435   tui_init_generic_part (tui_disassem_exec_info_win_ptr ());
 436   tui_init_generic_part (tui_locator_win_info_ptr ());
 437 }
 438
 439
 440 struct tui_gen_win_info *
 441 tui_alloc_generic_win_info (void)
 442 {
 443   struct tui_gen_win_info *win;
 444
 445   if ((win = XNEW (struct tui_gen_win_info)) != NULL)
 446     tui_init_generic_part (win);
 447
 448   return win;
 449 }
 450
 451
 452 void
 453 tui_init_generic_part (struct tui_gen_win_info *win)
 454 {
 455   win->width =
 456     win->height =
 457     win->origin.x =
 458     win->origin.y =
 459     win->viewport_height =
 460     win->content_size =
 461     win->last_visible_line = 0;
 462   win->handle = (WINDOW *) NULL;
 463   win->content = NULL;
 464   win->content_in_use =
 465     win->is_visible = FALSE;
 466   win->title = 0;
 467 }
 468
 469
 470 /* init_content_element().
 471  */
 472 static void
 473 init_content_element (struct tui_win_element *element,
 474                       enum tui_win_type type)
 475 {
 476   element->highlight = FALSE;
 477   switch (type)
 478     {
 479     case SRC_WIN:
 480     case DISASSEM_WIN:
 481       element->which_element.source.line = (char *) NULL;
 482       element->which_element.source.line_or_addr.loa = LOA_LINE;
 483       element->which_element.source.line_or_addr.u.line_no = 0;
 484       element->which_element.source.is_exec_point = FALSE;
 485       element->which_element.source.has_break = FALSE;
 486       break;
 487     case DATA_WIN:
 488       tui_init_generic_part (&element->which_element.data_window);
 489       element->which_element.data_window.type = DATA_ITEM_WIN;
 490       element->which_element.data_window.content =
 491         tui_alloc_content (1, DATA_ITEM_WIN);
 492       element->which_element.data_window.content_size = 1;
 493       break;
 494     case CMD_WIN:
 495       element->which_element.command.line = (char *) NULL;
 496       break;
 497     case DATA_ITEM_WIN:
 498       element->which_element.data.name = (char *) NULL;
 499       element->which_element.data.type = TUI_REGISTER;
 500       element->which_element.data.item_no = UNDEFINED_ITEM;
 501       element->which_element.data.value = NULL;
 502       element->which_element.data.highlight = FALSE;
 503       element->which_element.data.content = (char*) NULL;
 504       break;
 505     case LOCATOR_WIN:
 506       element->which_element.locator.full_name[0] =
 507         element->which_element.locator.proc_name[0] = (char) 0;
 508       element->which_element.locator.line_no = 0;
 509       element->which_element.locator.addr = 0;
 510       break;
 511     case EXEC_INFO_WIN:
 512       memset(element->which_element.simple_string, ' ',
 513              sizeof(element->which_element.simple_string));
 514       break;
 515     default:
 516       break;
 517     }
 518 }
 519
 520 static void
 521 init_win_info (struct tui_win_info *win_info)
 522 {
 523   tui_init_generic_part (&win_info->generic);
 524   win_info->can_highlight =
 525     win_info->is_highlighted = FALSE;
 526   switch (win_info->generic.type)
 527     {
 528     case SRC_WIN:
 529     case DISASSEM_WIN:
 530       win_info->detail.source_info.execution_info
 531         = (struct tui_gen_win_info *) NULL;
 532       win_info->detail.source_info.has_locator = FALSE;
 533       win_info->detail.source_info.horizontal_offset = 0;
 534       win_info->detail.source_info.gdbarch = NULL;
 535       win_info->detail.source_info.start_line_or_addr.loa = LOA_ADDRESS;
 536       win_info->detail.source_info.start_line_or_addr.u.addr = 0;
 537       win_info->detail.source_info.fullname = NULL;
 538       break;
 539     case DATA_WIN:
 540       win_info->detail.data_display_info.data_content = (tui_win_content) NULL;
 541       win_info->detail.data_display_info.data_content_count = 0;
 542       win_info->detail.data_display_info.regs_content = (tui_win_content) NULL;
 543       win_info->detail.data_display_info.regs_content_count = 0;
 544       win_info->detail.data_display_info.regs_column_count = 1;
 545       win_info->detail.data_display_info.display_regs = FALSE;
 546       win_info->detail.data_display_info.current_group = 0;
 547       break;
 548     case CMD_WIN:
 549       win_info->detail.command_info.cur_line = 0;
 550       win_info->detail.command_info.curch = 0;
 551       break;
 552     default:
 553       win_info->detail.opaque = NULL;
 554       break;
 555     }
 556 }
 557
 558
 559 struct tui_win_info *
 560 tui_alloc_win_info (enum tui_win_type type)
 561 {
 562   struct tui_win_info *win_info;
 563
 564   win_info = XNEW (struct tui_win_info);
 565   if (win_info != NULL)
 566     {
 567       win_info->generic.type = type;
 568       init_win_info (win_info);
 569     }
 570
 571   return win_info;
 572 }
 573
 574
 575 /* Allocates the content and elements in a block.  */
 576 tui_win_content
 577 tui_alloc_content (int num_elements, enum tui_win_type type)
 578 {
 579   tui_win_content content;
 580   char *element_block_ptr;
 581   int i;
 582
 583   content = xmalloc (sizeof (struct tui_win_element *) *num_elements);
 584   if (content != NULL)
 585     {
 586       /*
 587        * All windows, except the data window, can allocate the
 588        * elements in a chunk.  The data window cannot because items
 589        * can be added/removed from the data display by the user at any
 590        * time.
 591        */
 592       if (type != DATA_WIN)
 593         {
 594           element_block_ptr =
 595             xmalloc (sizeof (struct tui_win_element) * num_elements);
 596           if (element_block_ptr != NULL)
 597             {
 598               for (i = 0; i < num_elements; i++)
 599                 {
 600                   content[i] = (struct tui_win_element *) element_block_ptr;
 601                   init_content_element (content[i], type);
 602                   element_block_ptr += sizeof (struct tui_win_element);
 603                 }
 604             }
 605           else
 606             {
 607               xfree (content);
 608               content = (tui_win_content) NULL;
 609             }
 610         }
 611     }
 612
 613   return content;
 614 }
 615
 616
 617 /* Adds the input number of elements to the windows's content.  If no
 618    content has been allocated yet, alloc_content() is called to do
 619    this.  The index of the first element added is returned, unless
 620    there is a memory allocation error, in which case, (-1) is
 621    returned.  */
 622 int
 623 tui_add_content_elements (struct tui_gen_win_info *win_info,
 624                           int num_elements)
 625 {
 626   struct tui_win_element *element_ptr;
 627   int i, index_start;
 628
 629   if (win_info->content == NULL)
 630     {
 631       win_info->content = tui_alloc_content (num_elements, win_info->type);
 632       index_start = 0;
 633     }
 634   else
 635     index_start = win_info->content_size;
 636   if (win_info->content != NULL)
 637     {
 638       for (i = index_start; (i < num_elements + index_start); i++)
 639         {
 640           if ((element_ptr = XNEW (struct tui_win_element)) != NULL)
 641             {
 642               win_info->content[i] = (void *) element_ptr;
 643               init_content_element (element_ptr, win_info->type);
 644               win_info->content_size++;
 645             }
 646           else  /* Things must be really hosed now!  We ran out of
 647                    memory!?  */
 648             return (-1);
 649         }
 650     }
 651
 652   return index_start;
 653 }
 654
 655
 656 /* Delete all curses windows associated with win_info, leaving
 657    everything else intact.  */
 658 void
 659 tui_del_window (struct tui_win_info *win_info)
 660 {
 661   struct tui_gen_win_info *generic_win;
 662
 663   switch (win_info->generic.type)
 664     {
 665     case SRC_WIN:
 666     case DISASSEM_WIN:
 667       generic_win = tui_locator_win_info_ptr ();
 668       if (generic_win != (struct tui_gen_win_info *) NULL)
 669         {
 670           tui_delete_win (generic_win->handle);
 671           generic_win->handle = (WINDOW *) NULL;
 672           generic_win->is_visible = FALSE;
 673         }
 674       if (win_info->detail.source_info.fullname)
 675         {
 676           xfree (win_info->detail.source_info.fullname);
 677           win_info->detail.source_info.fullname = NULL;
 678         }
 679       generic_win = win_info->detail.source_info.execution_info;
 680       if (generic_win != (struct tui_gen_win_info *) NULL)
 681         {
 682           tui_delete_win (generic_win->handle);
 683           generic_win->handle = (WINDOW *) NULL;
 684           generic_win->is_visible = FALSE;
 685         }
 686       break;
 687     case DATA_WIN:
 688       if (win_info->generic.content != NULL)
 689         {
 690           tui_del_data_windows (win_info->detail.data_display_info.regs_content,
 691                                 win_info->detail.data_display_info.regs_content_count);
 692           tui_del_data_windows (win_info->detail.data_display_info.data_content,
 693                                 win_info->detail.data_display_info.data_content_count);
 694         }
 695       break;
 696     default:
 697       break;
 698     }
 699   if (win_info->generic.handle != (WINDOW *) NULL)
 700     {
 701       tui_delete_win (win_info->generic.handle);
 702       win_info->generic.handle = (WINDOW *) NULL;
 703       win_info->generic.is_visible = FALSE;
 704     }
 705 }
 706
 707
 708 void
 709 tui_free_window (struct tui_win_info *win_info)
 710 {
 711   struct tui_gen_win_info *generic_win;
 712
 713   switch (win_info->generic.type)
 714     {
 715     case SRC_WIN:
 716     case DISASSEM_WIN:
 717       if (win_info->detail.source_info.fullname)
 718         {
 719           xfree (win_info->detail.source_info.fullname);
 720           win_info->detail.source_info.fullname = NULL;
 721         }
 722       generic_win = win_info->detail.source_info.execution_info;
 723       if (generic_win != (struct tui_gen_win_info *) NULL)
 724         {
 725           tui_delete_win (generic_win->handle);
 726           generic_win->handle = (WINDOW *) NULL;
 727           tui_free_win_content (generic_win);
 728         }
 729       break;
 730     case DATA_WIN:
 731       if (win_info->generic.content != NULL)
 732         {
 733           tui_free_data_content (win_info->detail.data_display_info.regs_content,
 734                                  win_info->detail.data_display_info.regs_content_count);
 735           win_info->detail.data_display_info.regs_content =
 736             (tui_win_content) NULL;
 737           win_info->detail.data_display_info.regs_content_count = 0;
 738           tui_free_data_content (win_info->detail.data_display_info.data_content,
 739                                  win_info->detail.data_display_info.data_content_count);
 740           win_info->detail.data_display_info.data_content =
 741             (tui_win_content) NULL;
 742           win_info->detail.data_display_info.data_content_count = 0;
 743           win_info->detail.data_display_info.regs_column_count = 1;
 744           win_info->detail.data_display_info.display_regs = FALSE;
 745           win_info->generic.content = NULL;
 746           win_info->generic.content_size = 0;
 747         }
 748       break;
 749     default:
 750       break;
 751     }
 752   if (win_info->generic.handle != (WINDOW *) NULL)
 753     {
 754       tui_delete_win (win_info->generic.handle);
 755       win_info->generic.handle = (WINDOW *) NULL;
 756       tui_free_win_content (&win_info->generic);
 757     }
 758   if (win_info->generic.title)
 759     xfree (win_info->generic.title);
 760   xfree (win_info);
 761 }
 762
 763
 764 void
 765 tui_free_all_source_wins_content (void)
 766 {
 767   int i;
 768
 769   for (i = 0; i < (tui_source_windows ())->count; i++)
 770     {
 771       struct tui_win_info *win_info = (tui_source_windows ())->list[i];
 772
 773       if (win_info != NULL)
 774         {
 775           tui_free_win_content (&(win_info->generic));
 776           tui_free_win_content (win_info->detail.source_info.execution_info);
 777         }
 778     }
 779 }
 780
 781
 782 void
 783 tui_free_win_content (struct tui_gen_win_info *win_info)
 784 {
 785   if (win_info->content != NULL)
 786     {
 787       free_content ((tui_win_content) win_info->content,
 788                    win_info->content_size,
 789                    win_info->type);
 790       win_info->content = NULL;
 791     }
 792   win_info->content_size = 0;
 793 }
 794
 795
 796 void
 797 tui_del_data_windows (tui_win_content content,
 798                       int content_size)
 799 {
 800   int i;
 801
 802   /* Remember that data window content elements are of type struct
 803      tui_gen_win_info *, each of which whose single element is a data
 804      element.  */
 805   for (i = 0; i < content_size; i++)
 806     {
 807       struct tui_gen_win_info *generic_win
 808         = &content[i]->which_element.data_window;
 809
 810       if (generic_win != (struct tui_gen_win_info *) NULL)
 811         {
 812           tui_delete_win (generic_win->handle);
 813           generic_win->handle = (WINDOW *) NULL;
 814           generic_win->is_visible = FALSE;
 815         }
 816     }
 817 }
 818
 819
 820 void
 821 tui_free_data_content (tui_win_content content,
 822                        int content_size)
 823 {
 824   int i;
 825
 826   /* Remember that data window content elements are of type struct
 827      tui_gen_win_info *, each of which whose single element is a data
 828      element.  */
 829   for (i = 0; i < content_size; i++)
 830     {
 831       struct tui_gen_win_info *generic_win
 832         = &content[i]->which_element.data_window;
 833
 834       if (generic_win != (struct tui_gen_win_info *) NULL)
 835         {
 836           tui_delete_win (generic_win->handle);
 837           generic_win->handle = (WINDOW *) NULL;
 838           tui_free_win_content (generic_win);
 839         }
 840     }
 841   free_content (content,
 842                 content_size,
 843                 DATA_WIN);
 844 }
 845
 846
 847 /**********************************
 848 ** LOCAL STATIC FUNCTIONS        **
 849 **********************************/
 850
 851
 852 static void
 853 free_content (tui_win_content content,
 854               int content_size,
 855               enum tui_win_type win_type)
 856 {
 857   if (content != (tui_win_content) NULL)
 858     {
 859       free_content_elements (content, content_size, win_type);
 860       xfree (content);
 861     }
 862 }
 863
 864
 865 /* free_content_elements().
 866  */
 867 static void
 868 free_content_elements (tui_win_content content,
 869                        int content_size,
 870                        enum tui_win_type type)
 871 {
 872   if (content != (tui_win_content) NULL)
 873     {
 874       int i;
 875
 876       if (type == SRC_WIN || type == DISASSEM_WIN)
 877         {
 878           /* Free whole source block.  */
 879           xfree (content[0]->which_element.source.line);
 880         }
 881       else
 882         {
 883           for (i = 0; i < content_size; i++)
 884             {
 885               struct tui_win_element *element;
 886
 887               element = content[i];
 888               if (element != (struct tui_win_element *) NULL)
 889                 {
 890                   switch (type)
 891                     {
 892                     case DATA_WIN:
 893                       xfree (element);
 894                       break;
 895                     case DATA_ITEM_WIN:
 896                       /* Note that data elements are not allocated in
 897                          a single block, but individually, as
 898                          needed.  */
 899                       if (element->which_element.data.type != TUI_REGISTER)
 900                         xfree ((void *)element->which_element.data.name);
 901                       xfree (element->which_element.data.value);
 902                       xfree (element->which_element.data.content);
 903                       xfree (element);
 904                       break;
 905                     case CMD_WIN:
 906                       xfree (element->which_element.command.line);
 907                       break;
 908                     default:
 909                       break;
 910                     }
 911                 }
 912             }
 913         }
 914       if (type != DATA_WIN && type != DATA_ITEM_WIN)
 915         xfree (content[0]);     /* Free the element block.  */
 916     }
 917 }