1 ------------------------------------------------------------------------------
3 -- GNAT ncurses Binding Samples --
9 ------------------------------------------------------------------------------
10 -- Copyright (c) 2000 Free Software Foundation, Inc. --
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13 -- copy of this software and associated documentation files (the --
14 -- "Software"), to deal in the Software without restriction, including --
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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: --
20 -- The above copyright notice and this permission notice shall be included --
21 -- in all copies or substantial portions of the Software. --
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. --
31 -- Except as contained in this notice, the name(s) of the above copyright --
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35 ------------------------------------------------------------------------------
36 -- Author: Eugene V. Melaragno <aldomel@ix.netcom.com> 2000
39 -- Binding Version 01.00
40 ------------------------------------------------------------------------------
41 with ncurses2.util; use ncurses2.util;
42 with Terminal_Interface.Curses; use Terminal_Interface.Curses;
44 -- test effects of overlapping windows
46 procedure ncurses2.overlap_test is
48 procedure fillwin (win : Window; ch : Character);
49 procedure crosswin (win : Window; ch : Character);
51 procedure fillwin (win : Window; ch : Character) is
55 Get_Size (win, y1, x1);
56 for y in 0 .. y1 - 1 loop
57 Move_Cursor (win, y, 0);
58 for x in 0 .. x1 - 1 loop
63 when Curses_Exception => null;
64 -- write to lower right corner
67 procedure crosswin (win : Window; ch : Character) is
71 Get_Size (win, y1, x1);
72 for y in 0 .. y1 - 1 loop
73 for x in 0 .. x1 - 1 loop
74 if (((x > (x1 - 1) / 3) and (x <= (2 * (x1 - 1)) / 3))
75 or (((y > (y1 - 1) / 3) and (y <= (2 * (y1 - 1)) / 3)))) then
76 Move_Cursor (win, y, x);
83 -- In a 24x80 screen like some xterms are, the instructions will
86 win1 : Window := New_Window (9, 20, 3, 3);
87 win2 : Window := New_Window (9, 20, 9, 16);
89 Set_Raw_Mode (SwitchOn => True);
91 Move_Cursor (Line => 0, Column => 0);
92 Add (Str => "This test shows the behavior of wnoutrefresh() with " &
95 Add (Str => "the shared region of two overlapping windows A and B. "&
98 Add (Str => "pattern in each window does not overlap the other.");
101 Move_Cursor (Line => 18, Column => 0);
102 Add (Str => "a = refresh A, then B, then doupdate. b = refresh B, " &
103 "then A, then doupdaute");
105 Add (Str => "c = fill window A with letter A. d = fill window B " &
108 Add (Str => "e = cross pattern in window A. f = cross pattern " &
111 Add (Str => "g = clear window A. h = clear window B.");
113 Add (Str => "i = overwrite A onto B. j = overwrite " &
116 Add (Str => "^Q/ESC = terminate test.");
119 ch := Code_To_Char (Getchar);
120 exit when ch = CTRL ('Q') or ch = CTRL ('['); -- QUIT or ESCAPE
122 when 'a' => -- refresh window A first, then B
123 Refresh_Without_Update (win1);
124 Refresh_Without_Update (win2);
126 when 'b' => -- refresh window B first, then A
127 Refresh_Without_Update (win2);
128 Refresh_Without_Update (win1);
130 when 'c' => -- fill window A so it's visible
132 when 'd' => -- fill window B so it's visible
134 when 'e' => -- cross test pattern in window A
135 crosswin (win1, 'A');
136 when 'f' => -- cross test pattern in window B
137 crosswin (win2, 'B');
138 when 'g' => -- clear window A
140 Move_Cursor (win1, 0, 0);
141 when 'h' => -- clear window B
143 Move_Cursor (win2, 0, 0);
144 when 'i' => -- overwrite A onto B
145 Overwrite (win1, win2);
146 when 'j' => -- overwrite B onto A
147 Overwrite (win2, win1);
156 end ncurses2.overlap_test;