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 pertinant 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 /* See tui-data.h.  */
 154
 155 void
 156 tui_cmd_window::clear_detail ()
 157 {
 158   wmove (handle, 0, 0);
 159 }
 160
 161 /* See tui-data.h.  */
 162
 163 void
 164 tui_data_window::clear_detail ()
 165 {
 166   regs_content.clear ();
 167   regs_column_count = 1;
 168   display_regs = false;
 169 }
 170
 171 /* Accessor for the locator win info.  Answers a pointer to the static
 172    locator win info struct.  */
 173 struct tui_locator_window *
 174 tui_locator_win_info_ptr (void)
 175 {
 176   return &_locator;
 177 }
 178
 179
 180 /* Accessor for the term_height.  */
 181 int
 182 tui_term_height (void)
 183 {
 184   return term_height;
 185 }
 186
 187
 188 /* Mutator for the term height.  */
 189 void
 190 tui_set_term_height_to (int h)
 191 {
 192   term_height = h;
 193 }
 194
 195
 196 /* Accessor for the term_width.  */
 197 int
 198 tui_term_width (void)
 199 {
 200   return term_width;
 201 }
 202
 203
 204 /* Mutator for the term_width.  */
 205 void
 206 tui_set_term_width_to (int w)
 207 {
 208   term_width = w;
 209 }
 210
 211
 212 /* Accessor for the current layout.  */
 213 enum tui_layout_type
 214 tui_current_layout (void)
 215 {
 216   return current_layout;
 217 }
 218
 219
 220 /* Mutator for the current layout.  */
 221 void
 222 tui_set_current_layout_to (enum tui_layout_type new_layout)
 223 {
 224   current_layout = new_layout;
 225 }
 226
 227
 228 /*****************************
 229 ** OTHER PUBLIC FUNCTIONS
 230 *****************************/
 231
 232
 233 /* Answer the next window in the list, cycling back to the top if
 234    necessary.  */
 235 struct tui_win_info *
 236 tui_next_win (struct tui_win_info *cur_win)
 237 {
 238   int type = cur_win->type;
 239   struct tui_win_info *next_win = NULL;
 240
 241   if (cur_win->type == CMD_WIN)
 242     type = SRC_WIN;
 243   else
 244     type = cur_win->type + 1;
 245   while (type != cur_win->type && (next_win == NULL))
 246     {
 247       if (tui_win_list[type]
 248           && tui_win_list[type]->is_visible)
 249         next_win = tui_win_list[type];
 250       else
 251         {
 252           if (type == CMD_WIN)
 253             type = SRC_WIN;
 254           else
 255             type++;
 256         }
 257     }
 258
 259   return next_win;
 260 }
 261
 262
 263 /* Answer the prev window in the list, cycling back to the bottom if
 264    necessary.  */
 265 struct tui_win_info *
 266 tui_prev_win (struct tui_win_info *cur_win)
 267 {
 268   int type = cur_win->type;
 269   struct tui_win_info *prev = NULL;
 270
 271   if (cur_win->type == SRC_WIN)
 272     type = CMD_WIN;
 273   else
 274     type = cur_win->type - 1;
 275   while (type != cur_win->type && (prev == NULL))
 276     {
 277       if (tui_win_list[type]
 278           && tui_win_list[type]->is_visible)
 279         prev = tui_win_list[type];
 280       else
 281         {
 282           if (type == SRC_WIN)
 283             type = CMD_WIN;
 284           else
 285             type--;
 286         }
 287     }
 288
 289   return prev;
 290 }
 291
 292
 293 /* Answer the window represented by name.  */
 294 struct tui_win_info *
 295 tui_partial_win_by_name (const char *name)
 296 {
 297   if (name != NULL)
 298     {
 299       for (tui_win_info *item : all_tui_windows ())
 300         {
 301           const char *cur_name = item->name ();
 302
 303           if (strlen (name) <= strlen (cur_name)
 304               && startswith (cur_name, name))
 305             return item;
 306         }
 307     }
 308
 309   return NULL;
 310 }
 311
 312
 313 void
 314 tui_initialize_static_data ()
 315 {
 316   tui_gen_win_info *win = tui_locator_win_info_ptr ();
 317   win->width =
 318     win->height =
 319     win->origin.x =
 320     win->origin.y =
 321     win->viewport_height =
 322     win->last_visible_line = 0;
 323   win->handle = NULL;
 324   win->content_in_use = FALSE;
 325   win->is_visible = false;
 326   win->title = 0;
 327 }
 328
 329
 330 tui_win_info::tui_win_info (enum tui_win_type type)
 331   : tui_gen_win_info (type)
 332 {
 333 }
 334
 335 tui_source_window_base::tui_source_window_base (enum tui_win_type type)
 336   : tui_win_info (type)
 337 {
 338   gdb_assert (type == SRC_WIN || type == DISASSEM_WIN);
 339   start_line_or_addr.loa = LOA_ADDRESS;
 340   start_line_or_addr.u.addr = 0;
 341 }
 342
 343 tui_gen_win_info::~tui_gen_win_info ()
 344 {
 345   tui_delete_win (handle);
 346   xfree (title);
 347 }
 348
 349 tui_source_window_base::~tui_source_window_base ()
 350 {
 351   xfree (fullname);
 352   delete execution_info;
 353 }
 354
 355 /**********************************
 356 ** LOCAL STATIC FUNCTIONS        **
 357 **********************************/
 358
 359
 360 tui_data_item_window::~tui_data_item_window ()
 361 {
 362   xfree (value);
 363   xfree (content);
 364 }