source: trunk/ncurses/Ada95/samples/sample.adb@ 2872

Last change on this file since 2872 was 2621, checked in by bird, 20 years ago

GNU ncurses 5.5
File size: 8.2 KB
Line 
1------------------------------------------------------------------------------
2-- --
3-- GNAT ncurses Binding Samples --
4-- --
5-- Sample --
6-- --
7-- B O D Y --
8-- --
9------------------------------------------------------------------------------
10-- Copyright (c) 1998 Free Software Foundation, Inc. --
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: Juergen Pfeifer, 1996
37-- Version Control
38-- $Revision: 1.14 $
39-- Binding Version 01.00
40------------------------------------------------------------------------------
41with Text_IO;
42
43with Ada.Exceptions; use Ada.Exceptions;
44
45with Terminal_Interface.Curses; use Terminal_Interface.Curses;
46with Terminal_Interface.Curses.Panels; use Terminal_Interface.Curses.Panels;
47with Terminal_Interface.Curses.Menus; use Terminal_Interface.Curses.Menus;
48with Terminal_Interface.Curses.Menus.Menu_User_Data;
49with Terminal_Interface.Curses.Menus.Item_User_Data;
50
51with Sample.Manifest; use Sample.Manifest;
52with Sample.Function_Key_Setting; use Sample.Function_Key_Setting;
53with Sample.Keyboard_Handler; use Sample.Keyboard_Handler;
54with Sample.Header_Handler; use Sample.Header_Handler;
55with Sample.Explanation; use Sample.Explanation;
56
57with Sample.Menu_Demo.Handler;
58with Sample.Curses_Demo;
59with Sample.Form_Demo;
60with Sample.Menu_Demo;
61with Sample.Text_IO_Demo;
62
63with GNAT.OS_Lib;
64
65package body Sample is
66
67 type User_Data is
68 record
69 Data : Integer;
70 end record;
71 type User_Access is access User_Data;
72
73 package Ud is new
74 Terminal_Interface.Curses.Menus.Menu_User_Data
75 (User_Data, User_Access);
76
77 package Id is new
78 Terminal_Interface.Curses.Menus.Item_User_Data
79 (User_Data, User_Access);
80
81 procedure Whow is
82 procedure Main_Menu;
83 procedure Main_Menu
84 is
85 function My_Driver (M : Menu;
86 K : Key_Code;
87 Pan : Panel) return Boolean;
88
89 package Mh is new Sample.Menu_Demo.Handler (My_Driver);
90
91 I : Item_Array_Access := new Item_Array'
92 (New_Item ("Curses Core Demo"),
93 New_Item ("Menu Demo"),
94 New_Item ("Form Demo"),
95 New_Item ("Text IO Demo"),
96 Null_Item);
97
98 M : Menu := New_Menu (I);
99
100 D1, D2 : User_Access;
101 I1, I2 : User_Access;
102
103 function My_Driver (M : Menu;
104 K : Key_Code;
105 Pan : Panel) return Boolean
106 is
107 Idx : constant Positive := Get_Index (Current (M));
108 begin
109 if K in User_Key_Code'Range then
110 if K = QUIT then
111 return True;
112 elsif K = SELECT_ITEM then
113 if Idx in 1 .. 4 then
114 Hide (Pan);
115 Update_Panels;
116 end if;
117 case Idx is
118 when 1 => Sample.Curses_Demo.Demo;
119 when 2 => Sample.Menu_Demo.Demo;
120 when 3 => Sample.Form_Demo.Demo;
121 when 4 => Sample.Text_IO_Demo.Demo;
122 when others => null;
123 end case;
124 if Idx in 1 .. 4 then
125 Top (Pan);
126 Show (Pan);
127 Update_Panels;
128 Update_Screen;
129 end if;
130 end if;
131 end if;
132 return False;
133 end My_Driver;
134
135 begin
136
137 if (1 + Item_Count (M)) /= I'Length then
138 raise Constraint_Error;
139 end if;
140
141 D1 := new User_Data'(Data => 4711);
142 Ud.Set_User_Data (M, D1);
143
144 I1 := new User_Data'(Data => 1174);
145 Id.Set_User_Data (I (1), I1);
146
147 Set_Spacing (Men => M, Row => 2);
148
149 Default_Labels;
150 Notepad ("MAINPAD");
151
152 Mh.Drive_Me (M, " Demo ");
153
154 Ud.Get_User_Data (M, D2);
155 pragma Assert (D1 = D2);
156 pragma Assert (D1.Data = D2.Data);
157
158 Id.Get_User_Data (I (1), I2);
159 pragma Assert (I1 = I2);
160 pragma Assert (I1.Data = I2.Data);
161
162 Delete (M);
163 Free (I, True);
164 end Main_Menu;
165
166 begin
167 Initialize (PC_Style_With_Index);
168 Init_Header_Handler;
169 Init_Screen;
170
171 if Has_Colors then
172 Start_Color;
173
174 Init_Pair (Pair => Default_Colors, Fore => Black, Back => White);
175 Init_Pair (Pair => Menu_Back_Color, Fore => Black, Back => Cyan);
176 Init_Pair (Pair => Menu_Fore_Color, Fore => Red, Back => Cyan);
177 Init_Pair (Pair => Menu_Grey_Color, Fore => White, Back => Cyan);
178 Init_Pair (Pair => Notepad_Color, Fore => Black, Back => Yellow);
179 Init_Pair (Pair => Help_Color, Fore => Blue, Back => Cyan);
180 Init_Pair (Pair => Form_Back_Color, Fore => Black, Back => Cyan);
181 Init_Pair (Pair => Form_Fore_Color, Fore => Red, Back => Cyan);
182 Init_Pair (Pair => Header_Color, Fore => Black, Back => Green);
183
184 Set_Background (Ch => (Color => Default_Colors,
185 Attr => Normal_Video,
186 Ch => ' '));
187 Set_Character_Attributes (Attr => Normal_Video,
188 Color => Default_Colors);
189 Erase;
190
191 Set_Soft_Label_Key_Attributes (Color => Header_Color);
192 -- This propagates the attributes to the label window
193 Clear_Soft_Label_Keys; Restore_Soft_Label_Keys;
194 end if;
195
196 Init_Keyboard_Handler;
197
198 Set_Echo_Mode (False);
199 Set_Raw_Mode;
200 Set_Meta_Mode;
201 Set_KeyPad_Mode;
202
203 -- Initialize the Function Key Environment
204 -- We have some fixed key throughout this sample
205 Main_Menu;
206 End_Windows;
207
208 exception
209 when Event : others =>
210 Terminal_Interface.Curses.End_Windows;
211 Text_IO.Put ("Exception: ");
212 Text_IO.Put (Exception_Name (Event));
213 Text_IO.New_Line;
214 GNAT.OS_Lib.OS_Exit (1);
215
216 end Whow;
217
218end Sample;
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