| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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 <aldomel@ix.netcom.com> 2000 |
| -- Version Control |
| -- $Revision: 1.4 $ |
| -- $Date: 2004/08/21 21:37:00 $ |
| -- 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; |
