gdb/tui/tui-data.c

   1 /* TUI data manipulation routines.
   2
   3    Copyright (C) 1998-2020 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 "tui/tui-winsource.h"
  28 #include "gdb_curses.h"
  29 #include <algorithm>
  30
  31 struct tui_win_info *tui_win_list[MAX_MAJOR_WINDOWS];
  32
  33 static int term_height, term_width;
  34 static struct tui_win_info *win_with_focus = NULL;
  35
  36 static bool win_resized = false;
  37
  38 /* Answer a whether the terminal window has been resized or not.  */
  39 bool
  40 tui_win_resized ()
  41 {
  42   return win_resized;
  43 }
  44
  45
  46 /* Set a whether the terminal window has been resized or not.  */
  47 void
  48 tui_set_win_resized_to (bool resized)
  49 {
  50   win_resized = resized;
  51 }
  52
  53
  54 /* Answer the window with the logical focus.  */
  55 struct tui_win_info *
  56 tui_win_with_focus (void)
  57 {
  58   return win_with_focus;
  59 }
  60
  61
  62 /* Set the window that has the logical focus.  */
  63 void
  64 tui_set_win_with_focus (struct tui_win_info *win_info)
  65 {
  66   win_with_focus = win_info;
  67 }
  68
  69
  70 /* Accessor for the term_height.  */
  71 int
  72 tui_term_height (void)
  73 {
  74   return term_height;
  75 }
  76
  77
  78 /* Mutator for the term height.  */
  79 void
  80 tui_set_term_height_to (int h)
  81 {
  82   term_height = h;
  83 }
  84
  85
  86 /* Accessor for the term_width.  */
  87 int
  88 tui_term_width (void)
  89 {
  90   return term_width;
  91 }
  92
  93
  94 /* Mutator for the term_width.  */
  95 void
  96 tui_set_term_width_to (int w)
  97 {
  98   term_width = w;
  99 }
 100
 101
 102 /* Answer the next window in the list, cycling back to the top if
 103    necessary.  */
 104 struct tui_win_info *
 105 tui_next_win (struct tui_win_info *cur_win)
 106 {
 107   auto iter = std::find (tui_windows.begin (), tui_windows.end (), cur_win);
 108   gdb_assert (iter != tui_windows.end ());
 109
 110   ++iter;
 111   if (iter == tui_windows.end ())
 112     return tui_windows[0];
 113   return *iter;
 114 }
 115
 116
 117 /* Answer the prev window in the list, cycling back to the bottom if
 118    necessary.  */
 119 struct tui_win_info *
 120 tui_prev_win (struct tui_win_info *cur_win)
 121 {
 122   auto iter = std::find (tui_windows.begin (), tui_windows.end (), cur_win);
 123   gdb_assert (iter != tui_windows.end ());
 124
 125   if (iter == tui_windows.begin ())
 126     return tui_windows.back ();
 127   --iter;
 128   return *iter;
 129 }
 130
 131
 132 /* See tui-data.h.  */
 133
 134 void
 135 tui_delete_invisible_windows ()
 136 {
 137   for (int win_type = SRC_WIN; (win_type < MAX_MAJOR_WINDOWS); win_type++)
 138     {
 139       if (tui_win_list[win_type] != NULL
 140           && !tui_win_list[win_type]->is_visible ())
 141         {
 142           /* This should always be made visible before a call to this
 143              function.  */
 144           gdb_assert (win_type != CMD_WIN);
 145
 146           if (win_with_focus == tui_win_list[win_type])
 147             win_with_focus = nullptr;
 148
 149           delete tui_win_list[win_type];
 150           tui_win_list[win_type] = NULL;
 151         }
 152     }
 153 }
 154
 155 tui_win_info::tui_win_info (enum tui_win_type type)
 156   : tui_gen_win_info (type)
 157 {
 158 }
 159
 160 void
 161 tui_win_info::rerender ()
 162 {
 163   check_and_display_highlight_if_needed ();
 164 }