gdb/tui/tui-data.c

   1 /* TUI data manipulation routines.
   2
   3    Copyright (C) 1998-2019 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_locator_window _locator;
  40 static std::vector<tui_source_window_base *> source_windows;
  41 static struct tui_win_info *win_with_focus = NULL;
  42 static struct tui_layout_def layout_def = {
  43   SRC_WIN,                      /* DISPLAY_MODE */
  44 };
  45
  46 static int win_resized = FALSE;
  47
  48
  49 /*********************************
  50 ** PUBLIC FUNCTIONS
  51 **********************************/
  52
  53 int
  54 tui_win_is_auxiliary (enum tui_win_type win_type)
  55 {
  56   return (win_type > MAX_MAJOR_WINDOWS);
  57 }
  58
  59 /******************************************
  60 ** ACCESSORS & MUTATORS FOR PRIVATE DATA
  61 ******************************************/
  62
  63 /* Answer a whether the terminal window has been resized or not.  */
  64 int
  65 tui_win_resized (void)
  66 {
  67   return win_resized;
  68 }
  69
  70
  71 /* Set a whether the terminal window has been resized or not.  */
  72 void
  73 tui_set_win_resized_to (int resized)
  74 {
  75   win_resized = resized;
  76 }
  77
  78
  79 /* Answer a pointer to the current layout definition.  */
  80 struct tui_layout_def *
  81 tui_layout_def (void)
  82 {
  83   return &layout_def;
  84 }
  85
  86
  87 /* Answer the window with the logical focus.  */
  88 struct tui_win_info *
  89 tui_win_with_focus (void)
  90 {
  91   return win_with_focus;
  92 }
  93
  94
  95 /* Set the window that has the logical focus.  */
  96 void
  97 tui_set_win_with_focus (struct tui_win_info *win_info)
  98 {
  99   win_with_focus = win_info;
 100 }
 101
 102
 103 /* Accessor for the current source window.  Usually there is only one
 104    source window (either source or disassembly), but both can be
 105    displayed at the same time.  */
 106 std::vector<tui_source_window_base *> &
 107 tui_source_windows ()
 108 {
 109   return source_windows;
 110 }
 111
 112
 113 /* Clear the list of source windows.  Usually there is only one source
 114    window (either source or disassembly), but both can be displayed at
 115    the same time.  */
 116 void
 117 tui_clear_source_windows ()
 118 {
 119   source_windows.clear ();
 120 }
 121
 122
 123 /* Clear the pertinent detail in the source windows.  */
 124 void
 125 tui_clear_source_windows_detail ()
 126 {
 127   for (tui_source_window_base *win : tui_source_windows ())
 128     win->clear_detail ();
 129 }
 130
 131
 132 /* Add a window to the list of source windows.  Usually there is only
 133    one source window (either source or disassembly), but both can be
 134    displayed at the same time.  */
 135 void
 136 tui_add_to_source_windows (struct tui_source_window_base *win_info)
 137 {
 138   if (source_windows.size () < 2)
 139     source_windows.push_back (win_info);
 140 }
 141
 142 /* See tui-data.h.  */
 143
 144 void
 145 tui_source_window_base::clear_detail ()
 146 {
 147   gdbarch = NULL;
 148   start_line_or_addr.loa = LOA_ADDRESS;
 149   start_line_or_addr.u.addr = 0;
 150   horizontal_offset = 0;
 151 }
 152
 153 /* Accessor for the locator win info.  Answers a pointer to the static
 154    locator win info struct.  */
 155 struct tui_locator_window *
 156 tui_locator_win_info_ptr (void)
 157 {
 158   return &_locator;
 159 }
 160
 161
 162 /* Accessor for the term_height.  */
 163 int
 164 tui_term_height (void)
 165 {
 166   return term_height;
 167 }
 168
 169
 170 /* Mutator for the term height.  */
 171 void
 172 tui_set_term_height_to (int h)
 173 {
 174   term_height = h;
 175 }
 176
 177
 178 /* Accessor for the term_width.  */
 179 int
 180 tui_term_width (void)
 181 {
 182   return term_width;
 183 }
 184
 185
 186 /* Mutator for the term_width.  */
 187 void
 188 tui_set_term_width_to (int w)
 189 {
 190   term_width = w;
 191 }
 192
 193
 194 /* Accessor for the current layout.  */
 195 enum tui_layout_type
 196 tui_current_layout (void)
 197 {
 198   return current_layout;
 199 }
 200
 201
 202 /* Mutator for the current layout.  */
 203 void
 204 tui_set_current_layout_to (enum tui_layout_type new_layout)
 205 {
 206   current_layout = new_layout;
 207 }
 208
 209
 210 /*****************************
 211 ** OTHER PUBLIC FUNCTIONS
 212 *****************************/
 213
 214
 215 /* Answer the next window in the list, cycling back to the top if
 216    necessary.  */
 217 struct tui_win_info *
 218 tui_next_win (struct tui_win_info *cur_win)
 219 {
 220   int type = cur_win->type;
 221   struct tui_win_info *next_win = NULL;
 222
 223   if (cur_win->type == CMD_WIN)
 224     type = SRC_WIN;
 225   else
 226     type = cur_win->type + 1;
 227   while (type != cur_win->type && (next_win == NULL))
 228     {
 229       if (tui_win_list[type]
 230           && tui_win_list[type]->is_visible)
 231         next_win = tui_win_list[type];
 232       else
 233         {
 234           if (type == CMD_WIN)
 235             type = SRC_WIN;
 236           else
 237             type++;
 238         }
 239     }
 240
 241   return next_win;
 242 }
 243
 244
 245 /* Answer the prev window in the list, cycling back to the bottom if
 246    necessary.  */
 247 struct tui_win_info *
 248 tui_prev_win (struct tui_win_info *cur_win)
 249 {
 250   int type = cur_win->type;
 251   struct tui_win_info *prev = NULL;
 252
 253   if (cur_win->type == SRC_WIN)
 254     type = CMD_WIN;
 255   else
 256     type = cur_win->type - 1;
 257   while (type != cur_win->type && (prev == NULL))
 258     {
 259       if (tui_win_list[type]
 260           && tui_win_list[type]->is_visible)
 261         prev = tui_win_list[type];
 262       else
 263         {
 264           if (type == SRC_WIN)
 265             type = CMD_WIN;
 266           else
 267             type--;
 268         }
 269     }
 270
 271   return prev;
 272 }
 273
 274
 275 /* Answer the window represented by name.  */
 276 struct tui_win_info *
 277 tui_partial_win_by_name (const char *name)
 278 {
 279   if (name != NULL)
 280     {
 281       for (tui_win_info *item : all_tui_windows ())
 282         {
 283           const char *cur_name = item->name ();
 284
 285           if (strlen (name) <= strlen (cur_name)
 286               && startswith (cur_name, name))
 287             return item;
 288         }
 289     }
 290
 291   return NULL;
 292 }
 293
 294
 295 void
 296 tui_initialize_static_data ()
 297 {
 298   tui_gen_win_info *win = tui_locator_win_info_ptr ();
 299   win->width =
 300     win->height =
 301     win->origin.x =
 302     win->origin.y =
 303     win->viewport_height =
 304     win->last_visible_line = 0;
 305   win->handle = NULL;
 306   win->is_visible = false;
 307   win->title = 0;
 308 }
 309
 310
 311 tui_win_info::tui_win_info (enum tui_win_type type)
 312   : tui_gen_win_info (type)
 313 {
 314 }
 315
 316 tui_source_window_base::tui_source_window_base (enum tui_win_type type)
 317   : tui_win_info (type),
 318     execution_info (new tui_exec_info_window ())
 319 {
 320   gdb_assert (type == SRC_WIN || type == DISASSEM_WIN);
 321   start_line_or_addr.loa = LOA_ADDRESS;
 322   start_line_or_addr.u.addr = 0;
 323 }
 324
 325 tui_gen_win_info::~tui_gen_win_info ()
 326 {
 327   tui_delete_win (handle);
 328   xfree (title);
 329 }
 330
 331 tui_source_window_base::~tui_source_window_base ()
 332 {
 333   xfree (fullname);
 334   delete execution_info;
 335 }
 336
 337 /**********************************
 338 ** LOCAL STATIC FUNCTIONS        **
 339 **********************************/
 340
 341
 342 tui_data_item_window::~tui_data_item_window ()
 343 {
 344   xfree (value);
 345   xfree (content);
 346 }