release/src/router/libncurses/Ada95/samples/ncurses2-m.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                       GNAT ncurses Binding Samples                       --
   4 --                                                                          --
   5 --                                 ncurses                                  --
   6 --                                                                          --
   7 --                                 B O D Y                                  --
   8 --                                                                          --
   9 ------------------------------------------------------------------------------
  10 -- Copyright (c) 2000-2006,2008 Free Software Foundation, Inc.              --
  11 --                                                                          --
  12 -- Permission is hereby granted, free of charge, to any person obtaining a  --
  13 -- copy of this software and associated documentation files (the            --
  14 -- "Software"), to deal in the Software without restriction, including      --
  15 -- without limitation the rights to use, copy, modify, merge, publish,      --
  16 -- distribute, distribute with modifications, sublicense, and/or sell       --
  17 -- copies of the Software, and to permit persons to whom the Software is    --
  18 -- furnished to do so, subject to the following conditions:                 --
  19 --                                                                          --
  20 -- The above copyright notice and this permission notice shall be included  --
  21 -- in all copies or substantial portions of the Software.                   --
  22 --                                                                          --
  23 -- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  --
  24 -- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               --
  25 -- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   --
  26 -- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   --
  27 -- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    --
  28 -- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    --
  29 -- THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               --
  30 --                                                                          --
  31 -- Except as contained in this notice, the name(s) of the above copyright   --
  32 -- holders shall not be used in advertising or otherwise to promote the     --
  33 -- sale, use or other dealings in this Software without prior written       --
  34 -- authorization.                                                           --
  35 ------------------------------------------------------------------------------
  36 --  Author: Eugene V. Melaragno <aldomel@ix.netcom.com> 2000
  37 --  Version Control
  38 --  $Revision: 1.8 $
  39 --  $Date: 2008/07/26 18:47:50 $
  40 --  Binding Version 01.00
  41 ------------------------------------------------------------------------------
  42 --  TODO use Default_Character where appropriate
  43
  44 --  This is an Ada version of ncurses
  45 --  I translated this because it tests the most features.
  46
  47 with Terminal_Interface.Curses; use Terminal_Interface.Curses;
  48 with Terminal_Interface.Curses.Trace; use Terminal_Interface.Curses.Trace;
  49
  50 with Ada.Text_IO; use Ada.Text_IO;
  51
  52 with Ada.Characters.Latin_1;
  53 --  with Ada.Characters.Handling;
  54
  55 with Ada.Command_Line; use Ada.Command_Line;
  56
  57 with Ada.Strings.Unbounded;
  58
  59 with ncurses2.util; use ncurses2.util;
  60 with ncurses2.getch_test;
  61 with ncurses2.attr_test;
  62 with ncurses2.color_test;
  63 with ncurses2.demo_panels;
  64 with ncurses2.color_edit;
  65 with ncurses2.slk_test;
  66 with ncurses2.acs_display;
  67 with ncurses2.acs_and_scroll;
  68 with ncurses2.flushinp_test;
  69 with ncurses2.test_sgr_attributes;
  70 with ncurses2.menu_test;
  71 with ncurses2.demo_pad;
  72 with ncurses2.demo_forms;
  73 with ncurses2.overlap_test;
  74 with ncurses2.trace_set;
  75
  76 with ncurses2.getopt; use ncurses2.getopt;
  77
  78 package body ncurses2.m is
  79    use Int_IO;
  80
  81    function To_trace (n : Integer) return Trace_Attribute_Set;
  82    procedure usage;
  83    procedure Set_Terminal_Modes;
  84    function Do_Single_Test (c : Character) return Boolean;
  85
  86    function To_trace (n : Integer) return Trace_Attribute_Set is
  87       a : Trace_Attribute_Set := (others => False);
  88       m : Integer;
  89       rest : Integer;
  90    begin
  91       m := n  mod 2;
  92       if 1 = m then
  93          a.Times := True;
  94       end if;
  95       rest := n / 2;
  96
  97       m := rest mod 2;
  98       if 1 = m then
  99          a.Tputs := True;
 100       end if;
 101       rest := rest / 2;
 102       m := rest mod 2;
 103       if 1 = m then
 104          a.Update := True;
 105       end if;
 106       rest := rest / 2;
 107       m := rest mod 2;
 108       if 1 = m then
 109          a.Cursor_Move := True;
 110       end if;
 111       rest := rest / 2;
 112       m := rest mod 2;
 113       if 1 = m then
 114          a.Character_Output := True;
 115       end if;
 116       rest := rest / 2;
 117       m := rest mod 2;
 118       if 1 = m then
 119          a.Calls := True;
 120       end if;
 121       rest := rest / 2;
 122       m := rest mod 2;
 123       if 1 = m then
 124          a.Virtual_Puts := True;
 125       end if;
 126       rest := rest / 2;
 127       m := rest mod 2;
 128       if 1 = m then
 129          a.Input_Events := True;
 130       end if;
 131       rest := rest / 2;
 132       m := rest mod 2;
 133       if 1 = m then
 134          a.TTY_State := True;
 135       end if;
 136       rest := rest / 2;
 137       m := rest mod 2;
 138       if 1 = m then
 139          a.Internal_Calls := True;
 140       end if;
 141       rest := rest / 2;
 142       m := rest mod 2;
 143       if 1 = m then
 144          a.Character_Calls := True;
 145       end if;
 146       rest := rest / 2;
 147       m := rest mod 2;
 148       if 1 = m then
 149          a.Termcap_TermInfo := True;
 150       end if;
 151
 152       return a;
 153    end To_trace;
 154
 155    --   these are type Stdscr_Init_Proc;
 156
 157    function rip_footer (
 158                         Win : Window;
 159                         Columns : Column_Count) return Integer;
 160    pragma Convention (C, rip_footer);
 161
 162    function rip_footer (
 163                         Win : Window;
 164                         Columns : Column_Count) return Integer is
 165    begin
 166       Set_Background (Win, (Ch => ' ',
 167                             Attr => (Reverse_Video => True, others => False),
 168                             Color => 0));
 169       Erase (Win);
 170       Move_Cursor (Win, 0, 0);
 171       Add (Win, "footer:"  & Columns'Img & " columns");
 172       Refresh_Without_Update (Win);
 173       return 0; -- Curses_OK;
 174    end rip_footer;
 175
 176    function rip_header (
 177                         Win : Window;
 178                         Columns : Column_Count) return Integer;
 179    pragma Convention (C, rip_header);
 180
 181    function rip_header (
 182                         Win : Window;
 183                         Columns : Column_Count) return Integer is
 184    begin
 185       Set_Background (Win, (Ch => ' ',
 186                             Attr => (Reverse_Video => True, others => False),
 187                             Color => 0));
 188       Erase (Win);
 189       Move_Cursor (Win, 0, 0);
 190       Add (Win, "header:"  & Columns'Img & " columns");
 191       --  'Img is a GNAT extention
 192       Refresh_Without_Update (Win);
 193       return 0; -- Curses_OK;
 194    end rip_header;
 195
 196    procedure usage is
 197       --  type Stringa is access String;
 198       use Ada.Strings.Unbounded;
 199       --  tbl : constant array (Positive range <>) of Stringa := (
 200       tbl : constant array (Positive range <>) of Unbounded_String
 201         := (
 202             To_Unbounded_String ("Usage: ncurses [options]"),
 203             To_Unbounded_String (""),
 204             To_Unbounded_String ("Options:"),
 205             To_Unbounded_String ("  -a f,b   set default-colors " &
 206                                  "(assumed white-on-black)"),
 207             To_Unbounded_String ("  -d       use default-colors if terminal " &
 208                                  "supports them"),
 209             To_Unbounded_String ("  -e fmt   specify format for soft-keys " &
 210                                  "test (e)"),
 211             To_Unbounded_String ("  -f       rip-off footer line " &
 212                                  "(can repeat)"),
 213             To_Unbounded_String ("  -h       rip-off header line " &
 214                                  "(can repeat)"),
 215             To_Unbounded_String ("  -s msec  specify nominal time for " &
 216                                  "panel-demo (default: 1, to hold)"),
 217             To_Unbounded_String ("  -t mask  specify default trace-level " &
 218                                  "(may toggle with ^T)")
 219             );
 220    begin
 221       for n in tbl'Range loop
 222          Put_Line (Standard_Error, To_String (tbl (n)));
 223       end loop;
 224       --     exit(EXIT_FAILURE);
 225       --  TODO should we use Set_Exit_Status and throw and exception?
 226    end usage;
 227
 228    procedure Set_Terminal_Modes is begin
 229       Set_Raw_Mode (SwitchOn => False);
 230       Set_Cbreak_Mode (SwitchOn => True);
 231       Set_Echo_Mode (SwitchOn => False);
 232       Allow_Scrolling (Mode => True);
 233       Use_Insert_Delete_Line (Do_Idl => True);
 234       Set_KeyPad_Mode (SwitchOn => True);
 235    end Set_Terminal_Modes;
 236
 237    nap_msec : Integer := 1;
 238
 239    function Do_Single_Test (c : Character) return Boolean is
 240    begin
 241       case c is
 242          when 'a' =>
 243             getch_test;
 244          when 'b' =>
 245             attr_test;
 246          when 'c' =>
 247             if not Has_Colors then
 248                Cannot ("does not support color.");
 249             else
 250                color_test;
 251             end if;
 252          when 'd' =>
 253             if not Has_Colors then
 254                Cannot ("does not support color.");
 255             elsif not Can_Change_Color then
 256                Cannot ("has hardwired color values.");
 257             else
 258                color_edit;
 259             end if;
 260          when 'e' =>
 261             slk_test;
 262          when 'f' =>
 263             acs_display;
 264          when 'o' =>
 265             demo_panels (nap_msec);
 266          when 'g' =>
 267             acs_and_scroll;
 268          when 'i' =>
 269             flushinp_test (Standard_Window);
 270          when 'k' =>
 271             test_sgr_attributes;
 272          when 'm' =>
 273             menu_test;
 274          when 'p' =>
 275             demo_pad;
 276          when 'r' =>
 277             demo_forms;
 278          when 's' =>
 279             overlap_test;
 280          when 't' =>
 281             trace_set;
 282          when '?' =>
 283             null;
 284          when others => return False;
 285       end case;
 286       return True;
 287    end Do_Single_Test;
 288
 289    command : Character;
 290    my_e_param : Soft_Label_Key_Format := Four_Four;
 291    assumed_colors : Boolean := False;
 292    default_colors : Boolean := False;
 293    default_fg : Color_Number := White;
 294    default_bg : Color_Number := Black;
 295    --  nap_msec was an unsigned long integer in the C version,
 296    --  yet napms only takes an int!
 297
 298    c : Integer;
 299    c2 : Character;
 300    optind : Integer := 1; -- must be initialized to one.
 301    optarg : getopt.stringa;
 302
 303    length : Integer;
 304    tmpi : Integer;
 305
 306    package myio is new Ada.Text_IO.Integer_IO (Integer);
 307    use myio;
 308
 309    save_trace : Integer := 0;
 310    save_trace_set : Trace_Attribute_Set;
 311
 312    function main return Integer is
 313    begin
 314       loop
 315          Qgetopt (c, Argument_Count, Argument'Access,
 316                   "a:de:fhs:t:", optind, optarg);
 317          exit when c = -1;
 318          c2 := Character'Val (c);
 319          case c2 is
 320             when 'a' =>
 321                --  Ada doesn't have scanf, it doesn't even have a
 322                --  regular expression library.
 323                assumed_colors := True;
 324                myio.Get (optarg.all, Integer (default_fg), length);
 325                myio.Get (optarg.all (length + 2 .. optarg.all'Length),
 326                          Integer (default_bg), length);
 327             when 'd' =>
 328                default_colors := True;
 329             when 'e' =>
 330                myio.Get (optarg.all, tmpi, length);
 331                if tmpi > 3 then
 332                   usage;
 333                   return 1;
 334                end if;
 335                my_e_param := Soft_Label_Key_Format'Val (tmpi);
 336             when 'f' =>
 337                Rip_Off_Lines (-1, rip_footer'Access);
 338             when 'h' =>
 339                Rip_Off_Lines (1, rip_header'Access);
 340             when 's' =>
 341                myio.Get (optarg.all, nap_msec, length);
 342             when 't' =>
 343                myio.Get (optarg.all, save_trace, length);
 344             when others =>
 345                usage;
 346                return 1;
 347          end case;
 348       end loop;
 349
 350       --  the C version had a bunch of macros here.
 351
 352       --   if (!isatty(fileno(stdin)))
 353       --   isatty is not available in the standard Ada so skip it.
 354       save_trace_set := To_trace (save_trace);
 355       Trace_On (save_trace_set);
 356
 357       Init_Soft_Label_Keys (my_e_param);
 358
 359       Init_Screen;
 360       Set_Background (Ch => (Ch    => Blank,
 361                              Attr  => Normal_Video,
 362                              Color => Color_Pair'First));
 363
 364       if Has_Colors then
 365          Start_Color;
 366          if default_colors then
 367             Use_Default_Colors;
 368          elsif assumed_colors then
 369             Assume_Default_Colors (default_fg, default_bg);
 370          end if;
 371       end if;
 372
 373       Set_Terminal_Modes;
 374       Save_Curses_Mode (Curses);
 375
 376       End_Windows;
 377
 378       --  TODO add macro #if blocks.
 379       Put_Line ("Welcome to " & Curses_Version & ".  Press ? for help.");
 380
 381       loop
 382          Put_Line ("This is the ncurses main menu");
 383          Put_Line ("a = keyboard and mouse input test");
 384          Put_Line ("b = character attribute test");
 385          Put_Line ("c = color test pattern");
 386          Put_Line ("d = edit RGB color values");
 387          Put_Line ("e = exercise soft keys");
 388          Put_Line ("f = display ACS characters");
 389          Put_Line ("g = display windows and scrolling");
 390          Put_Line ("i = test of flushinp()");
 391          Put_Line ("k = display character attributes");
 392          Put_Line ("m = menu code test");
 393          Put_Line ("o = exercise panels library");
 394          Put_Line ("p = exercise pad features");
 395          Put_Line ("q = quit");
 396          Put_Line ("r = exercise forms code");
 397          Put_Line ("s = overlapping-refresh test");
 398          Put_Line ("t = set trace level");
 399          Put_Line ("? = repeat this command summary");
 400
 401          Put ("> ");
 402          Flush;
 403
 404          command := Ada.Characters.Latin_1.NUL;
 405          --              get_input:
 406          --              loop
 407          declare
 408             Ch : Character;
 409          begin
 410             Get (Ch);
 411             --  TODO if read(ch) <= 0
 412             --  TODO ada doesn't have an Is_Space function
 413             command := Ch;
 414             --  TODO if ch = '\n' or '\r' are these in Ada?
 415          end;
 416          --              end loop get_input;
 417
 418          declare
 419          begin
 420             if Do_Single_Test (command) then
 421                Flush_Input;
 422                Set_Terminal_Modes;
 423                Reset_Curses_Mode (Curses);
 424                Clear;
 425                Refresh;
 426                End_Windows;
 427                if command = '?' then
 428                   Put_Line ("This is the ncurses capability tester.");
 429                   Put_Line ("You may select a test from the main menu by " &
 430                             "typing the");
 431                   Put_Line ("key letter of the choice (the letter to left " &
 432                             "of the =)");
 433                   Put_Line ("at the > prompt.  The commands `x' or `q' will " &
 434                             "exit.");
 435                end if;
 436                --  continue; --why continue in the C version?
 437             end if;
 438          exception
 439             when Curses_Exception => End_Windows;
 440          end;
 441
 442          exit when command = 'q';
 443       end loop;
 444       Curses_Free_All;
 445       return 0; -- TODO ExitProgram(EXIT_SUCCESS);
 446    end main;
 447
 448 end ncurses2.m;