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gerrit.omnirom.org / android_external_libncurses / b2cef93693cf7cfd01098c9b69603c90f0f4b803 / . / Ada95 / samples / ncurses2-overlap_test.adb
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Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]1------------------------------------------------------------------------------
2-- --
3-- GNAT ncurses Binding Samples --
4-- --
5-- ncurses --
6-- --
7-- B O D Y --
8-- --
9------------------------------------------------------------------------------
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]10-- Copyright (c) 2000-2014,2015 Free Software Foundation, Inc. --
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]11-- --
12-- Permission is hereby granted, free of charge, to any person obtaining a --
13-- copy of this software and associated documentation files (the --
14-- "Software"), to deal in the Software without restriction, including --
15-- without limitation the rights to use, copy, modify, merge, publish, --
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: --
19-- --
20-- The above copyright notice and this permission notice shall be included --
21-- in all copies or substantial portions of the Software. --
22-- --
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. --
30-- --
31-- Except as contained in this notice, the name(s) of the above copyright --
32-- holders shall not be used in advertising or otherwise to promote the --
33-- sale, use or other dealings in this Software without prior written --
34-- authorization. --
35------------------------------------------------------------------------------
36-- Author: Eugene V. Melaragno <aldomel@ix.netcom.com> 2000
37-- Version Control
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]38-- $Revision: 1.7 $
39-- $Date: 2015/07/25 23:43:19 $
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]40-- Binding Version 01.00
41------------------------------------------------------------------------------
42with ncurses2.util; use ncurses2.util;
43with Terminal_Interface.Curses; use Terminal_Interface.Curses;
44
45-- test effects of overlapping windows
46
47procedure ncurses2.overlap_test is
48
49 procedure fillwin (win : Window; ch : Character);
50 procedure crosswin (win : Window; ch : Character);
51
52 procedure fillwin (win : Window; ch : Character) is
53 y1 : Line_Position;
54 x1 : Column_Position;
55 begin
56 Get_Size (win, y1, x1);
57 for y in 0 .. y1 - 1 loop
58 Move_Cursor (win, y, 0);
59 for x in 0 .. x1 - 1 loop
60 Add (win, Ch => ch);
61 end loop;
62 end loop;
63 exception
64 when Curses_Exception => null;
65 -- write to lower right corner
66 end fillwin;
67
68 procedure crosswin (win : Window; ch : Character) is
69 y1 : Line_Position;
70 x1 : Column_Position;
71 begin
72 Get_Size (win, y1, x1);
73 for y in 0 .. y1 - 1 loop
74 for x in 0 .. x1 - 1 loop
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]75 if ((x > (x1 - 1) / 3) and (x <= (2 * (x1 - 1)) / 3)) or
76 (((y > (y1 - 1) / 3) and (y <= (2 * (y1 - 1)) / 3)))
77 then
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]78 Move_Cursor (win, y, x);
79 Add (win, Ch => ch);
80 end if;
81 end loop;
82 end loop;
83 end crosswin;
84
85 -- In a 24x80 screen like some xterms are, the instructions will
86 -- be overwritten.
87 ch : Character;
88 win1 : Window := New_Window (9, 20, 3, 3);
89 win2 : Window := New_Window (9, 20, 9, 16);
90begin
91 Set_Raw_Mode (SwitchOn => True);
92 Refresh;
93 Move_Cursor (Line => 0, Column => 0);
94 Add (Str => "This test shows the behavior of wnoutrefresh() with " &
95 "respect to");
96 Add (Ch => newl);
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]97 Add (Str => "the shared region of two overlapping windows A and B. " &
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]98 "The cross");
99 Add (Ch => newl);
100 Add (Str => "pattern in each window does not overlap the other.");
101 Add (Ch => newl);
102
103 Move_Cursor (Line => 18, Column => 0);
104 Add (Str => "a = refresh A, then B, then doupdate. b = refresh B, " &
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]105 "then A, then doupdate");
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]106 Add (Ch => newl);
107 Add (Str => "c = fill window A with letter A. d = fill window B " &
108 "with letter B.");
109 Add (Ch => newl);
110 Add (Str => "e = cross pattern in window A. f = cross pattern " &
111 "in window B.");
112 Add (Ch => newl);
113 Add (Str => "g = clear window A. h = clear window B.");
114 Add (Ch => newl);
115 Add (Str => "i = overwrite A onto B. j = overwrite " &
116 "B onto A.");
117 Add (Ch => newl);
118 Add (Str => "^Q/ESC = terminate test.");
119
120 loop
121 ch := Code_To_Char (Getchar);
122 exit when ch = CTRL ('Q') or ch = CTRL ('['); -- QUIT or ESCAPE
123 case ch is
124 when 'a' => -- refresh window A first, then B
125 Refresh_Without_Update (win1);
126 Refresh_Without_Update (win2);
127 Update_Screen;
128 when 'b' => -- refresh window B first, then A
129 Refresh_Without_Update (win2);
130 Refresh_Without_Update (win1);
131 Update_Screen;
132 when 'c' => -- fill window A so it's visible
133 fillwin (win1, 'A');
134 when 'd' => -- fill window B so it's visible
135 fillwin (win2, 'B');
136 when 'e' => -- cross test pattern in window A
137 crosswin (win1, 'A');
138 when 'f' => -- cross test pattern in window B
139 crosswin (win2, 'B');
140 when 'g' => -- clear window A
141 Clear (win1);
142 Move_Cursor (win1, 0, 0);
143 when 'h' => -- clear window B
144 Clear (win2);
145 Move_Cursor (win2, 0, 0);
146 when 'i' => -- overwrite A onto B
147 Overwrite (win1, win2);
148 when 'j' => -- overwrite B onto A
149 Overwrite (win2, win1);
150 when others => null;
151 end case;
152 end loop;
153
154 Delete (win2);
155 Delete (win1);
156 Erase;
157 End_Windows;
158end ncurses2.overlap_test;