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