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ncursesw-morphos/Ada95/samples/ncurses2-m.adb
Thomas E. Dickey 746490c7ab ncurses 6.1 - patch 20180707 
+ build-fixes for gcc8.
+ correct order of WINDOW._ttytype versus WINDOW._windowlist in
  report_offsets.
+ fix a case where tiparm could return null if the format-string was
  empty (Debian #902630).
2018-07-08 01:27:14 +00:00

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------------------------------------------------------------------------------
-- --
-- GNAT ncurses Binding Samples --
-- --
-- ncurses --
-- --
-- B O D Y --
-- --
------------------------------------------------------------------------------
-- Copyright (c) 2000-2008,2018 Free Software Foundation, Inc. --
-- --
-- Permission is hereby granted, free of charge, to any person obtaining a --
-- copy of this software and associated documentation files (the --
-- "Software"), to deal in the Software without restriction, including --
-- without limitation the rights to use, copy, modify, merge, publish, --
-- distribute, distribute with modifications, sublicense, and/or sell --
-- copies of the Software, and to permit persons to whom the Software is --
-- furnished to do so, subject to the following conditions: --
-- --
-- The above copyright notice and this permission notice shall be included --
-- in all copies or substantial portions of the Software. --
-- --
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS --
-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF --
-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. --
-- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, --
-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR --
-- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR --
-- THE USE OR OTHER DEALINGS IN THE SOFTWARE. --
-- --
-- Except as contained in this notice, the name(s) of the above copyright --
-- holders shall not be used in advertising or otherwise to promote the --
-- sale, use or other dealings in this Software without prior written --
-- authorization. --
------------------------------------------------------------------------------
-- Author: Eugene V. Melaragno <aldomel@ix.netcom.com> 2000
-- Version Control
-- $Revision: 1.9 $
-- $Date: 2018/07/07 23:33:16 $
-- Binding Version 01.00
------------------------------------------------------------------------------
-- TODO use Default_Character where appropriate
-- This is an Ada version of ncurses
-- I translated this because it tests the most features.
with Terminal_Interface.Curses; use Terminal_Interface.Curses;
with Terminal_Interface.Curses.Trace; use Terminal_Interface.Curses.Trace;
with Ada.Text_IO; use Ada.Text_IO;
with Ada.Characters.Latin_1;
with Ada.Command_Line; use Ada.Command_Line;
with Ada.Strings.Unbounded;
with ncurses2.util; use ncurses2.util;
with ncurses2.getch_test;
with ncurses2.attr_test;
with ncurses2.color_test;
with ncurses2.demo_panels;
with ncurses2.color_edit;
with ncurses2.slk_test;
with ncurses2.acs_display;
with ncurses2.acs_and_scroll;
with ncurses2.flushinp_test;
with ncurses2.test_sgr_attributes;
with ncurses2.menu_test;
with ncurses2.demo_pad;
with ncurses2.demo_forms;
with ncurses2.overlap_test;
with ncurses2.trace_set;
with ncurses2.getopt; use ncurses2.getopt;
package body ncurses2.m is
function To_trace (n : Integer) return Trace_Attribute_Set;
procedure usage;
procedure Set_Terminal_Modes;
function Do_Single_Test (c : Character) return Boolean;
function To_trace (n : Integer) return Trace_Attribute_Set is
a : Trace_Attribute_Set := (others => False);
m : Integer;
rest : Integer;
begin
m := n mod 2;
if 1 = m then
a.Times := True;
end if;
rest := n / 2;
m := rest mod 2;
if 1 = m then
a.Tputs := True;
end if;
rest := rest / 2;
m := rest mod 2;
if 1 = m then
a.Update := True;
end if;
rest := rest / 2;
m := rest mod 2;
if 1 = m then
a.Cursor_Move := True;
end if;
rest := rest / 2;
m := rest mod 2;
if 1 = m then
a.Character_Output := True;
end if;
rest := rest / 2;
m := rest mod 2;
if 1 = m then
a.Calls := True;
end if;
rest := rest / 2;
m := rest mod 2;
if 1 = m then
a.Virtual_Puts := True;
end if;
rest := rest / 2;
m := rest mod 2;
if 1 = m then
a.Input_Events := True;
end if;
rest := rest / 2;
m := rest mod 2;
if 1 = m then
a.TTY_State := True;
end if;
rest := rest / 2;
m := rest mod 2;
if 1 = m then
a.Internal_Calls := True;
end if;
rest := rest / 2;
m := rest mod 2;
if 1 = m then
a.Character_Calls := True;
end if;
rest := rest / 2;
m := rest mod 2;
if 1 = m then
a.Termcap_TermInfo := True;
end if;
return a;
end To_trace;
-- these are type Stdscr_Init_Proc;
function rip_footer (
Win : Window;
Columns : Column_Count) return Integer;
pragma Convention (C, rip_footer);
function rip_footer (
Win : Window;
Columns : Column_Count) return Integer is
begin
Set_Background (Win, (Ch => ' ',
Attr => (Reverse_Video => True, others => False),
Color => 0));
Erase (Win);
Move_Cursor (Win, 0, 0);
Add (Win, "footer:" & Columns'Img & " columns");
Refresh_Without_Update (Win);
return 0; -- Curses_OK;
end rip_footer;
function rip_header (
Win : Window;
Columns : Column_Count) return Integer;
pragma Convention (C, rip_header);
function rip_header (
Win : Window;
Columns : Column_Count) return Integer is
begin
Set_Background (Win, (Ch => ' ',
Attr => (Reverse_Video => True, others => False),
Color => 0));
Erase (Win);
Move_Cursor (Win, 0, 0);
Add (Win, "header:" & Columns'Img & " columns");
-- 'Img is a GNAT extention
Refresh_Without_Update (Win);
return 0; -- Curses_OK;
end rip_header;
procedure usage is
-- type Stringa is access String;
use Ada.Strings.Unbounded;
-- tbl : constant array (Positive range <>) of Stringa := (
tbl : constant array (Positive range <>) of Unbounded_String
:= (
To_Unbounded_String ("Usage: ncurses [options]"),
To_Unbounded_String (""),
To_Unbounded_String ("Options:"),
To_Unbounded_String (" -a f,b set default-colors " &
"(assumed white-on-black)"),
To_Unbounded_String (" -d use default-colors if terminal " &
"supports them"),
To_Unbounded_String (" -e fmt specify format for soft-keys " &
"test (e)"),
To_Unbounded_String (" -f rip-off footer line " &
"(can repeat)"),
To_Unbounded_String (" -h rip-off header line " &
"(can repeat)"),
To_Unbounded_String (" -s msec specify nominal time for " &
"panel-demo (default: 1, to hold)"),
To_Unbounded_String (" -t mask specify default trace-level " &
"(may toggle with ^T)")
);
begin
for n in tbl'Range loop
Put_Line (Standard_Error, To_String (tbl (n)));
end loop;
-- exit(EXIT_FAILURE);
-- TODO should we use Set_Exit_Status and throw and exception?
end usage;
procedure Set_Terminal_Modes is begin
Set_Raw_Mode (SwitchOn => False);
Set_Cbreak_Mode (SwitchOn => True);
Set_Echo_Mode (SwitchOn => False);
Allow_Scrolling (Mode => True);
Use_Insert_Delete_Line (Do_Idl => True);
Set_KeyPad_Mode (SwitchOn => True);
end Set_Terminal_Modes;
nap_msec : Integer := 1;
function Do_Single_Test (c : Character) return Boolean is
begin
case c is
when 'a' =>
getch_test;
when 'b' =>
attr_test;
when 'c' =>
if not Has_Colors then
Cannot ("does not support color.");
else
color_test;
end if;
when 'd' =>
if not Has_Colors then
Cannot ("does not support color.");
elsif not Can_Change_Color then
Cannot ("has hardwired color values.");
else
color_edit;
end if;
when 'e' =>
slk_test;
when 'f' =>
acs_display;
when 'o' =>
demo_panels (nap_msec);
when 'g' =>
acs_and_scroll;
when 'i' =>
flushinp_test (Standard_Window);
when 'k' =>
test_sgr_attributes;
when 'm' =>
menu_test;
when 'p' =>
demo_pad;
when 'r' =>
demo_forms;
when 's' =>
overlap_test;
when 't' =>
trace_set;
when '?' =>
null;
when others => return False;
end case;
return True;
end Do_Single_Test;
command : Character;
my_e_param : Soft_Label_Key_Format := Four_Four;
assumed_colors : Boolean := False;
default_colors : Boolean := False;
default_fg : Color_Number := White;
default_bg : Color_Number := Black;
-- nap_msec was an unsigned long integer in the C version,
-- yet napms only takes an int!
c : Integer;
c2 : Character;
optind : Integer := 1; -- must be initialized to one.
optarg : getopt.stringa;
length : Integer;
tmpi : Integer;
package myio is new Ada.Text_IO.Integer_IO (Integer);
save_trace : Integer := 0;
save_trace_set : Trace_Attribute_Set;
function main return Integer is
begin
loop
Qgetopt (c, Argument_Count, Argument'Access,
"a:de:fhs:t:", optind, optarg);
exit when c = -1;
c2 := Character'Val (c);
case c2 is
when 'a' =>
-- Ada doesn't have scanf, it doesn't even have a
-- regular expression library.
assumed_colors := True;
myio.Get (optarg.all, Integer (default_fg), length);
myio.Get (optarg.all (length + 2 .. optarg.all'Length),
Integer (default_bg), length);
when 'd' =>
default_colors := True;
when 'e' =>
myio.Get (optarg.all, tmpi, length);
if tmpi > 3 then
usage;
return 1;
end if;
my_e_param := Soft_Label_Key_Format'Val (tmpi);
when 'f' =>
Rip_Off_Lines (-1, rip_footer'Access);
when 'h' =>
Rip_Off_Lines (1, rip_header'Access);
when 's' =>
myio.Get (optarg.all, nap_msec, length);
when 't' =>
myio.Get (optarg.all, save_trace, length);
when others =>
usage;
return 1;
end case;
end loop;
-- the C version had a bunch of macros here.
-- if (!isatty(fileno(stdin)))
-- isatty is not available in the standard Ada so skip it.
save_trace_set := To_trace (save_trace);
Trace_On (save_trace_set);
Init_Soft_Label_Keys (my_e_param);
Init_Screen;
Set_Background (Ch => (Ch => Blank,
Attr => Normal_Video,
Color => Color_Pair'First));
if Has_Colors then
Start_Color;
if default_colors then
Use_Default_Colors;
elsif assumed_colors then
Assume_Default_Colors (default_fg, default_bg);
end if;
end if;
Set_Terminal_Modes;
Save_Curses_Mode (Curses);
End_Windows;
-- TODO add macro #if blocks.
Put_Line ("Welcome to " & Curses_Version & ". Press ? for help.");
loop
Put_Line ("This is the ncurses main menu");
Put_Line ("a = keyboard and mouse input test");
Put_Line ("b = character attribute test");
Put_Line ("c = color test pattern");
Put_Line ("d = edit RGB color values");
Put_Line ("e = exercise soft keys");
Put_Line ("f = display ACS characters");
Put_Line ("g = display windows and scrolling");
Put_Line ("i = test of flushinp()");
Put_Line ("k = display character attributes");
Put_Line ("m = menu code test");
Put_Line ("o = exercise panels library");
Put_Line ("p = exercise pad features");
Put_Line ("q = quit");
Put_Line ("r = exercise forms code");
Put_Line ("s = overlapping-refresh test");
Put_Line ("t = set trace level");
Put_Line ("? = repeat this command summary");
Put ("> ");
Flush;
command := Ada.Characters.Latin_1.NUL;
-- get_input:
-- loop
declare
Ch : Character;
begin
Get (Ch);
-- TODO if read(ch) <= 0
-- TODO ada doesn't have an Is_Space function
command := Ch;
-- TODO if ch = '\n' or '\r' are these in Ada?
end;
-- end loop get_input;
declare
begin
if Do_Single_Test (command) then
Flush_Input;
Set_Terminal_Modes;
Reset_Curses_Mode (Curses);
Clear;
Refresh;
End_Windows;
if command = '?' then
Put_Line ("This is the ncurses capability tester.");
Put_Line ("You may select a test from the main menu by " &
"typing the");
Put_Line ("key letter of the choice (the letter to left " &
"of the =)");
Put_Line ("at the > prompt. The commands `x' or `q' will " &
"exit.");
end if;
-- continue; --why continue in the C version?
end if;
exception
when Curses_Exception => End_Windows;
end;
exit when command = 'q';
end loop;
Curses_Free_All;
return 0; -- TODO ExitProgram(EXIT_SUCCESS);
end main;
end ncurses2.m;
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