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
  28 #include "gdb_curses.h"
  29
  30 /***********************
  31 ** PUBLIC FUNCTIONS
  32 ***********************/
  33
  34 /* See tui-data.h.  */
  35
  36 void
  37 tui_gen_win_info::refresh_window ()
  38 {
  39   if (handle != NULL)
  40     {
  41       touchwin (handle);
  42       wrefresh (handle);
  43     }
  44 }
  45
  46 /* Function to delete the curses window, checking for NULL.  */
  47 void
  48 tui_delete_win (WINDOW *window)
  49 {
  50   if (window != NULL)
  51     delwin (window);
  52 }
  53
  54
  55 /* Draw a border arround the window.  */
  56 static void
  57 box_win (struct tui_gen_win_info *win_info,
  58          int highlight_flag)
  59 {
  60   if (win_info && win_info->handle)
  61     {
  62       WINDOW *win;
  63       int attrs;
  64
  65       win = win_info->handle;
  66       if (highlight_flag == HILITE)
  67         attrs = tui_active_border_attrs;
  68       else
  69         attrs = tui_border_attrs;
  70
  71       wattron (win, attrs);
  72 #ifdef HAVE_WBORDER
  73       wborder (win, tui_border_vline, tui_border_vline,
  74                tui_border_hline, tui_border_hline,
  75                tui_border_ulcorner, tui_border_urcorner,
  76                tui_border_llcorner, tui_border_lrcorner);
  77 #else
  78       box (win, tui_border_vline, tui_border_hline);
  79 #endif
  80       if (win_info->title)
  81         mvwaddstr (win, 0, 3, win_info->title);
  82       wattroff (win, attrs);
  83     }
  84 }
  85
  86
  87 void
  88 tui_unhighlight_win (struct tui_win_info *win_info)
  89 {
  90   if (win_info != NULL
  91       && win_info->can_highlight
  92       && win_info->handle != NULL)
  93     {
  94       box_win (win_info, NO_HILITE);
  95       win_info->refresh_window ();
  96       win_info->set_highlight (false);
  97     }
  98 }
  99
 100
 101 void
 102 tui_highlight_win (struct tui_win_info *win_info)
 103 {
 104   if (win_info != NULL
 105       && win_info->can_highlight
 106       && win_info->handle != NULL)
 107     {
 108       box_win (win_info, HILITE);
 109       win_info->refresh_window ();
 110       win_info->set_highlight (true);
 111     }
 112 }
 113
 114 void
 115 tui_check_and_display_highlight_if_needed (struct tui_win_info *win_info)
 116 {
 117   if (win_info != NULL && win_info->can_highlight)
 118     {
 119       if (win_info->is_highlighted)
 120         tui_highlight_win (win_info);
 121       else
 122         tui_unhighlight_win (win_info);
 123
 124     }
 125 }
 126
 127
 128 void
 129 tui_make_window (struct tui_gen_win_info *win_info, enum tui_box box_it)
 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 (box_it == BOX_WINDOW)
 141         box_win (win_info, NO_HILITE);
 142       win_info->is_visible = true;
 143       scrollok (handle, TRUE);
 144     }
 145 }
 146
 147
 148 /* We can't really make windows visible, or invisible.  So we have to
 149    delete the entire window when making it visible, and create it
 150    again when making it visible.  */
 151 void
 152 tui_gen_win_info::make_visible (bool visible)
 153 {
 154   if (is_visible == visible)
 155     return;
 156   is_visible = visible;
 157
 158   if (visible)
 159     tui_make_window (this, (tui_win_is_auxiliary (type)
 160                             ? DONT_BOX_WINDOW : BOX_WINDOW));
 161   else
 162     {
 163       tui_delete_win (handle);
 164       handle = NULL;
 165     }
 166 }
 167
 168 /* See tui-wingeneral.h.  */
 169
 170 void
 171 tui_make_all_invisible (void)
 172 {
 173   for (tui_win_info *win_info : all_tui_windows ())
 174     win_info->make_visible (false);
 175 }
 176
 177 /* Function to refresh all the windows currently displayed.  */
 178
 179 void
 180 tui_refresh_all ()
 181 {
 182   struct tui_locator_window *locator = tui_locator_win_info_ptr ();
 183
 184   for (tui_win_info *win_info : all_tui_windows ())
 185     {
 186       if (win_info->is_visible)
 187         win_info->refresh_window ();
 188     }
 189   if (locator->is_visible)
 190     locator->refresh_window ();
 191 }
 192
 193
 194 /*********************************
 195 ** Local Static Functions
 196 *********************************/