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 /* See tui-data.h.  */
  32
  33 void
  34 tui_gen_win_info::refresh_window ()
  35 {
  36   if (handle != NULL)
  37     wrefresh (handle.get ());
  38 }
  39
  40 /* Draw a border arround the window.  */
  41 static void
  42 box_win (struct tui_win_info *win_info,
  43          bool highlight_flag)
  44 {
  45   WINDOW *win;
  46   int attrs;
  47
  48   win = win_info->handle.get ();
  49   if (highlight_flag)
  50     attrs = tui_active_border_attrs;
  51   else
  52     attrs = tui_border_attrs;
  53
  54   wattron (win, attrs);
  55 #ifdef HAVE_WBORDER
  56   wborder (win, tui_border_vline, tui_border_vline,
  57            tui_border_hline, tui_border_hline,
  58            tui_border_ulcorner, tui_border_urcorner,
  59            tui_border_llcorner, tui_border_lrcorner);
  60 #else
  61   box (win, tui_border_vline, tui_border_hline);
  62 #endif
  63   if (!win_info->title.empty ())
  64     {
  65       /* Emit "+-TITLE-+" -- so 2 characters on the right and 2 on
  66          the left.  */
  67       int max_len = win_info->width - 2 - 2;
  68
  69       if (win_info->title.size () <= max_len)
  70         mvwaddstr (win, 0, 3, win_info->title.c_str ());
  71       else
  72         {
  73           std::string truncated
  74             = "..." + win_info->title.substr (win_info->title.size ()
  75                                               - max_len + 3);
  76           mvwaddstr (win, 0, 3, truncated.c_str ());
  77         }
  78     }
  79   wattroff (win, attrs);
  80 }
  81
  82
  83 void
  84 tui_unhighlight_win (struct tui_win_info *win_info)
  85 {
  86   if (win_info != NULL
  87       && win_info->can_highlight
  88       && win_info->handle != NULL)
  89     {
  90       box_win (win_info, false);
  91       win_info->refresh_window ();
  92       win_info->set_highlight (false);
  93     }
  94 }
  95
  96
  97 void
  98 tui_highlight_win (struct tui_win_info *win_info)
  99 {
 100   if (win_info != NULL
 101       && win_info->can_highlight
 102       && win_info->handle != NULL)
 103     {
 104       box_win (win_info, true);
 105       win_info->refresh_window ();
 106       win_info->set_highlight (true);
 107     }
 108 }
 109
 110 void
 111 tui_win_info::check_and_display_highlight_if_needed ()
 112 {
 113   if (can_highlight)
 114     {
 115       if (is_highlighted)
 116         tui_highlight_win (this);
 117       else
 118         tui_unhighlight_win (this);
 119     }
 120 }
 121
 122
 123 void
 124 tui_gen_win_info::make_window ()
 125 {
 126   handle.reset (newwin (height, width, origin.y, origin.x));
 127   if (handle != NULL)
 128     scrollok (handle.get (), TRUE);
 129 }
 130
 131 void
 132 tui_win_info::make_window ()
 133 {
 134   tui_gen_win_info::make_window ();
 135   if (handle != NULL && can_box ())
 136     box_win (this, false);
 137 }
 138
 139 /* We can't really make windows visible, or invisible.  So we have to
 140    delete the entire window when making it visible, and create it
 141    again when making it visible.  */
 142 void
 143 tui_gen_win_info::make_visible (bool visible)
 144 {
 145   if (is_visible () == visible)
 146     return;
 147
 148   if (visible)
 149     make_window ();
 150   else
 151     handle.reset (nullptr);
 152 }
 153
 154 /* See tui-wingeneral.h.  */
 155
 156 void
 157 tui_make_all_invisible (void)
 158 {
 159   for (tui_win_info *win_info : all_tui_windows ())
 160     win_info->make_visible (false);
 161 }
 162
 163 /* Function to refresh all the windows currently displayed.  */
 164
 165 void
 166 tui_refresh_all ()
 167 {
 168   struct tui_locator_window *locator = tui_locator_win_info_ptr ();
 169
 170   for (tui_win_info *win_info : all_tui_windows ())
 171     {
 172       if (win_info->is_visible ())
 173         win_info->refresh_window ();
 174     }
 175   if (locator->is_visible ())
 176     locator->refresh_window ();
 177 }