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------------------------------------------------------------------------------
-- --
-- GNAT ncurses Binding Samples --
-- --
-- ncurses --
-- --
-- B O D Y --
-- --
------------------------------------------------------------------------------
-- Copyright (c) 2000-2004,2011 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: 1.5 $
-- $Date: 2011/03/19 12:07:18 $
-- Binding Version 01.00
------------------------------------------------------------------------------
with ncurses2.util; use ncurses2.util;
with Terminal_Interface.Curses; use Terminal_Interface.Curses;
-- test effects of overlapping windows
procedure ncurses2.overlap_test is
procedure fillwin (win : Window; ch : Character);
procedure crosswin (win : Window; ch : Character);
procedure fillwin (win : Window; ch : Character) is
y1 : Line_Position;
x1 : Column_Position;
begin
Get_Size (win, y1, x1);
for y in 0 .. y1 - 1 loop
Move_Cursor (win, y, 0);
for x in 0 .. x1 - 1 loop
Add (win, Ch => ch);
end loop;
end loop;
exception
when Curses_Exception => null;
-- write to lower right corner
end fillwin;
procedure crosswin (win : Window; ch : Character) is
y1 : Line_Position;
x1 : Column_Position;
begin
Get_Size (win, y1, x1);
for y in 0 .. y1 - 1 loop
for x in 0 .. x1 - 1 loop
if ((x > (x1 - 1) / 3) and (x <= (2 * (x1 - 1)) / 3))
or (((y > (y1 - 1) / 3) and (y <= (2 * (y1 - 1)) / 3))) then
Move_Cursor (win, y, x);
Add (win, Ch => ch);
end if;
end loop;
end loop;
end crosswin;
-- In a 24x80 screen like some xterms are, the instructions will
-- be overwritten.
ch : Character;
win1 : Window := New_Window (9, 20, 3, 3);
win2 : Window := New_Window (9, 20, 9, 16);
begin
Set_Raw_Mode (SwitchOn => True);
Refresh;
Move_Cursor (Line => 0, Column => 0);
Add (Str => "This test shows the behavior of wnoutrefresh() with " &
"respect to");
Add (Ch => newl);
Add (Str => "the shared region of two overlapping windows A and B. "&
"The cross");
Add (Ch => newl);
Add (Str => "pattern in each window does not overlap the other.");
Add (Ch => newl);
Move_Cursor (Line => 18, Column => 0);
Add (Str => "a = refresh A, then B, then doupdate. b = refresh B, " &
"then A, then doupdate");
Add (Ch => newl);
Add (Str => "c = fill window A with letter A. d = fill window B " &
"with letter B.");
Add (Ch => newl);
Add (Str => "e = cross pattern in window A. f = cross pattern " &
"in window B.");
Add (Ch => newl);
Add (Str => "g = clear window A. h = clear window B.");
Add (Ch => newl);
Add (Str => "i = overwrite A onto B. j = overwrite " &
"B onto A.");
Add (Ch => newl);
Add (Str => "^Q/ESC = terminate test.");
loop
ch := Code_To_Char (Getchar);
exit when ch = CTRL ('Q') or ch = CTRL ('['); -- QUIT or ESCAPE
case ch is
when 'a' => -- refresh window A first, then B
Refresh_Without_Update (win1);
Refresh_Without_Update (win2);
Update_Screen;
when 'b' => -- refresh window B first, then A
Refresh_Without_Update (win2);
Refresh_Without_Update (win1);
Update_Screen;
when 'c' => -- fill window A so it's visible
fillwin (win1, 'A');
when 'd' => -- fill window B so it's visible
fillwin (win2, 'B');
when 'e' => -- cross test pattern in window A
crosswin (win1, 'A');
when 'f' => -- cross test pattern in window B
crosswin (win2, 'B');
when 'g' => -- clear window A
Clear (win1);
Move_Cursor (win1, 0, 0);
when 'h' => -- clear window B
Clear (win2);
Move_Cursor (win2, 0, 0);
when 'i' => -- overwrite A onto B
Overwrite (win1, win2);
when 'j' => -- overwrite B onto A
Overwrite (win2, win1);
when others => null;
end case;
end loop;
Delete (win2);
Delete (win1);
Erase;
End_Windows;
end ncurses2.overlap_test;
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