------------------------------------------------------------------------------ -- -- -- GNAT ncurses Binding Samples -- -- -- -- ncurses -- -- -- -- B O D Y -- -- -- ------------------------------------------------------------------------------ -- Copyright (c) 2000,2004 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 2000 -- Version Control -- $Revision$ -- $Date$ -- 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 doupdaute"); 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;