gdb/tui/tui-wingeneral.c

   1 /* General window behavior.
   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 "tui/tui.h"
  24 #include "tui/tui-data.h"
  25 #include "tui/tui-wingeneral.h"
  26 #include "tui/tui-win.h"
  27 #include "tui/tui-stack.h"
  28
  29 #include "gdb_curses.h"
  30
  31 /***********************
  32 ** PUBLIC FUNCTIONS
  33 ***********************/
  34
  35 /* See tui-data.h.  */
  36
  37 void
  38 tui_gen_win_info::refresh_window ()
  39 {
  40   if (handle != NULL)
  41     {
  42       touchwin (handle);
  43       wrefresh (handle);
  44     }
  45 }
  46
  47 /* Function to delete the curses window, checking for NULL.  */
  48 void
  49 tui_delete_win (WINDOW *window)
  50 {
  51   if (window != NULL)
  52     delwin (window);
  53 }
  54
  55
  56 /* Draw a border arround the window.  */
  57 static void
  58 box_win (struct tui_gen_win_info *win_info,
  59          int highlight_flag)
  60 {
  61   if (win_info && win_info->handle)
  62     {
  63       WINDOW *win;
  64       int attrs;
  65
  66       win = win_info->handle;
  67       if (highlight_flag == HILITE)
  68         attrs = tui_active_border_attrs;
  69       else
  70         attrs = tui_border_attrs;
  71
  72       wattron (win, attrs);
  73 #ifdef HAVE_WBORDER
  74       wborder (win, tui_border_vline, tui_border_vline,
  75                tui_border_hline, tui_border_hline,
  76                tui_border_ulcorner, tui_border_urcorner,
  77                tui_border_llcorner, tui_border_lrcorner);
  78 #else
  79       box (win, tui_border_vline, tui_border_hline);
  80 #endif
  81       if (win_info->title)
  82         mvwaddstr (win, 0, 3, win_info->title);
  83       wattroff (win, attrs);
  84     }
  85 }
  86
  87
  88 void
  89 tui_unhighlight_win (struct tui_win_info *win_info)
  90 {
  91   if (win_info != NULL
  92       && win_info->can_highlight
  93       && win_info->handle != NULL)
  94     {
  95       box_win (win_info, NO_HILITE);
  96       win_info->refresh_window ();
  97       win_info->set_highlight (false);
  98     }
  99 }
 100
 101
 102 void
 103 tui_highlight_win (struct tui_win_info *win_info)
 104 {
 105   if (win_info != NULL
 106       && win_info->can_highlight
 107       && win_info->handle != NULL)
 108     {
 109       box_win (win_info, HILITE);
 110       win_info->refresh_window ();
 111       win_info->set_highlight (true);
 112     }
 113 }
 114
 115 void
 116 tui_win_info::check_and_display_highlight_if_needed ()
 117 {
 118   if (can_highlight)
 119     {
 120       if (is_highlighted)
 121         tui_highlight_win (this);
 122       else
 123         tui_unhighlight_win (this);
 124     }
 125 }
 126
 127
 128 void
 129 tui_make_window (struct tui_gen_win_info *win_info)
 130 {
 131   WINDOW *handle;
 132
 133   handle = newwin (win_info->height,
 134                    win_info->width,
 135                    win_info->origin.y,
 136                    win_info->origin.x);
 137   win_info->handle = handle;
 138   if (handle != NULL)
 139     {
 140       if (win_info->can_box ())
 141         box_win (win_info, NO_HILITE);
 142       scrollok (handle, TRUE);
 143     }
 144 }
 145
 146
 147 /* We can't really make windows visible, or invisible.  So we have to
 148    delete the entire window when making it visible, and create it
 149    again when making it visible.  */
 150 void
 151 tui_gen_win_info::make_visible (bool visible)
 152 {
 153   if (is_visible () == visible)
 154     return;
 155
 156   if (visible)
 157     tui_make_window (this);
 158   else
 159     {
 160       tui_delete_win (handle);
 161       handle = NULL;
 162     }
 163 }
 164
 165 /* See tui-wingeneral.h.  */
 166
 167 void
 168 tui_make_all_invisible (void)
 169 {
 170   for (tui_win_info *win_info : all_tui_windows ())
 171     win_info->make_visible (false);
 172 }
 173
 174 /* Function to refresh all the windows currently displayed.  */
 175
 176 void
 177 tui_refresh_all ()
 178 {
 179   struct tui_locator_window *locator = tui_locator_win_info_ptr ();
 180
 181   for (tui_win_info *win_info : all_tui_windows ())
 182     {
 183       if (win_info->is_visible ())
 184         win_info->refresh_window ();
 185     }
 186   if (locator->is_visible ())
 187     locator->refresh_window ();
 188 }
 189
 190
 191 /*********************************
 192 ** Local Static Functions
 193 *********************************/