aboutsummaryrefslogtreecommitdiff
path: root/Ada95/samples/sample-menu_demo.adb
blob: 7e49ddde998d44f3aff41bdcb757c2a807f67ba5 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
------------------------------------------------------------------------------
--                                                                          --
--                       GNAT ncurses Binding Samples                       --
--                                                                          --
--                              Sample.Menu_Demo                            --
--                                                                          --
--                                 B O D Y                                  --
--                                                                          --
------------------------------------------------------------------------------
-- Copyright 2020 Thomas E. Dickey                                          --
-- Copyright 1998-2008,2011 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:  Juergen Pfeifer, 1996
--  Version Control
--  $Revision: 1.20 $
--  $Date: 2020/02/02 23:34:34 $
--  Binding Version 01.00
------------------------------------------------------------------------------
with Terminal_Interface.Curses; use Terminal_Interface.Curses;
with Terminal_Interface.Curses.Panels; use Terminal_Interface.Curses.Panels;
with Terminal_Interface.Curses.Menus; use Terminal_Interface.Curses.Menus;
with Terminal_Interface.Curses.Menus.Menu_User_Data;
with Terminal_Interface.Curses.Menus.Item_User_Data;

with Sample.Manifest; use Sample.Manifest;
with Sample.Function_Key_Setting; use Sample.Function_Key_Setting;
with Sample.Menu_Demo.Handler;
with Sample.Helpers; use Sample.Helpers;
with Sample.Explanation; use Sample.Explanation;

package body Sample.Menu_Demo is

   package Spacing_Demo is
      procedure Spacing_Test;
   end Spacing_Demo;

   package body Spacing_Demo is

      procedure Spacing_Test
      is
         function My_Driver (M : Menu;
                             K : Key_Code;
                             P : Panel) return Boolean;

         procedure Set_Option_Key;
         procedure Set_Select_Key;
         procedure Set_Description_Key;
         procedure Set_Hide_Key;

         package Mh is new Sample.Menu_Demo.Handler (My_Driver);

         I : Item_Array_Access := new Item_Array'
           (New_Item ("January",   "31 Days"),
            New_Item ("February",  "28/29 Days"),
            New_Item ("March",     "31 Days"),
            New_Item ("April",     "30 Days"),
            New_Item ("May",       "31 Days"),
            New_Item ("June",      "30 Days"),
            New_Item ("July",      "31 Days"),
            New_Item ("August",    "31 Days"),
            New_Item ("September", "30 Days"),
            New_Item ("October",   "31 Days"),
            New_Item ("November",  "30 Days"),
            New_Item ("December",  "31 Days"),
            Null_Item);

         M : Menu   := New_Menu (I);
         Flip_State : Boolean := True;
         Hide_Long  : Boolean := False;

         type Format_Code is (Four_By_1, Four_By_2, Four_By_3);
         type Operations  is (Flip, Reorder, Reformat, Reselect, Describe);

         type Change is array (Operations) of Boolean;
         pragma Pack (Change);
         No_Change : constant Change := Change'(others => False);

         Current_Format : Format_Code := Four_By_1;
         To_Change : Change := No_Change;

         function My_Driver (M : Menu;
                             K : Key_Code;
                             P : Panel) return Boolean
         is
         begin
            if M = Null_Menu then
               raise Menu_Exception;
            end if;
            if P = Null_Panel then
               raise Panel_Exception;
            end if;
            To_Change := No_Change;
            if K in User_Key_Code'Range then
               if K = QUIT then
                  return True;
               end if;
            end if;
            if K in Special_Key_Code'Range then
               case K is
                  when Key_F4 =>
                     To_Change (Flip) := True;
                     return True;
                  when Key_F5 =>
                     To_Change (Reformat)  := True;
                     Current_Format := Four_By_1;
                     return True;
                  when Key_F6 =>
                     To_Change (Reformat)  := True;
                     Current_Format := Four_By_2;
                     return True;
                  when Key_F7 =>
                     To_Change (Reformat)  := True;
                     Current_Format := Four_By_3;
                     return True;
                  when Key_F8 =>
                     To_Change (Reorder) := True;
                     return True;
                  when Key_F9 =>
                     To_Change (Reselect) := True;
                     return True;
                  when Key_F10 =>
                     if Current_Format /= Four_By_3 then
                        To_Change (Describe) := True;
                        return True;
                     else
                        return False;
                     end if;
                  when Key_F11 =>
                     Hide_Long := not Hide_Long;
                     declare
                        O : Item_Option_Set;
                     begin
                        for J in I'Range loop
                           Get_Options (I.all (J), O);
                           O.Selectable := True;
                           if Hide_Long then
                              case J is
                                 when 1 | 3 | 5 | 7 | 8 | 10 | 12 =>
                                    O.Selectable := False;
                                 when others => null;
                              end case;
                           end if;
                           Set_Options (I.all (J), O);
                        end loop;
                     end;
                     return False;
                  when others => null;
               end case;
            end if;
            return False;
         end My_Driver;

         procedure Set_Option_Key
         is
            O : Menu_Option_Set;
         begin
            if Current_Format = Four_By_1 then
               Set_Soft_Label_Key (8, "");
            else
               Get_Options (M, O);
               if O.Row_Major_Order then
                  Set_Soft_Label_Key (8, "O-Col");
               else
                  Set_Soft_Label_Key (8, "O-Row");
               end if;
            end if;
            Refresh_Soft_Label_Keys_Without_Update;
         end Set_Option_Key;

         procedure Set_Select_Key
         is
            O : Menu_Option_Set;
         begin
            Get_Options (M, O);
            if O.One_Valued then
               Set_Soft_Label_Key (9, "Multi");
            else
               Set_Soft_Label_Key (9, "Singl");
            end if;
            Refresh_Soft_Label_Keys_Without_Update;
         end Set_Select_Key;

         procedure Set_Description_Key
         is
            O : Menu_Option_Set;
         begin
            if Current_Format = Four_By_3 then
               Set_Soft_Label_Key (10, "");
            else
               Get_Options (M, O);
               if O.Show_Descriptions then
                  Set_Soft_Label_Key (10, "-Desc");
               else
                  Set_Soft_Label_Key (10, "+Desc");
               end if;
            end if;
            Refresh_Soft_Label_Keys_Without_Update;
         end Set_Description_Key;

         procedure Set_Hide_Key
         is
         begin
            if Hide_Long then
               Set_Soft_Label_Key (11, "Enab");
            else
               Set_Soft_Label_Key (11, "Disab");
            end if;
            Refresh_Soft_Label_Keys_Without_Update;
         end Set_Hide_Key;

      begin
         Push_Environment ("MENU01");
         Notepad ("MENU-PAD01");
         Default_Labels;
         Set_Soft_Label_Key (4, "Flip");
         Set_Soft_Label_Key (5, "4x1");
         Set_Soft_Label_Key (6, "4x2");
         Set_Soft_Label_Key (7, "4x3");
         Set_Option_Key;
         Set_Select_Key;
         Set_Description_Key;
         Set_Hide_Key;

         Set_Format (M, 4, 1);
         loop
            Mh.Drive_Me (M);
            exit when To_Change = No_Change;
            if To_Change (Flip) then
               if Flip_State then
                  Flip_State := False;
                  Set_Spacing (M, 3, 2, 0);
               else
                  Flip_State := True;
                  Set_Spacing (M);
               end if;
            elsif To_Change (Reformat) then
               case Current_Format is
                  when Four_By_1 => Set_Format (M, 4, 1);
                  when Four_By_2 => Set_Format (M, 4, 2);
                  when Four_By_3 =>
                     declare
                        O : Menu_Option_Set;
                     begin
                        Get_Options (M, O);
                        O.Show_Descriptions := False;
                        Set_Options (M, O);
                        Set_Format (M, 4, 3);
                     end;
               end case;
               Set_Option_Key;
               Set_Description_Key;
            elsif To_Change (Reorder) then
               declare
                  O : Menu_Option_Set;
               begin
                  Get_Options (M, O);
                  O.Row_Major_Order := not O.Row_Major_Order;
                  Set_Options (M, O);
                  Set_Option_Key;
               end;
            elsif To_Change (Reselect) then
               declare
                  O : Menu_Option_Set;
               begin
                  Get_Options (M, O);
                  O.One_Valued := not O.One_Valued;
                  Set_Options (M, O);
                  Set_Select_Key;
               end;
            elsif To_Change (Describe) then
               declare
                  O : Menu_Option_Set;
               begin
                  Get_Options (M, O);
                  O.Show_Descriptions := not O.Show_Descriptions;
                  Set_Options (M, O);
                  Set_Description_Key;
               end;
            else
               null;
            end if;
         end loop;
         Set_Spacing (M);

         Pop_Environment;
         pragma Assert (Get_Index (Items (M, 1)) = Get_Index (I (1)));
         Delete (M);
         Free (I, True);
      end Spacing_Test;
   end Spacing_Demo;

   procedure Demo
   is
      --  We use this datatype only to test the instantiation of
      --  the Menu_User_Data generic package. No functionality
      --  behind it.
      type User_Data is new Integer;
      type User_Data_Access is access User_Data;

      --  Those packages are only instantiated to test the usability.
      --  No real functionality is shown in the demo.
      package MUD is new Menu_User_Data (User_Data, User_Data_Access);
      package IUD is new Item_User_Data (User_Data, User_Data_Access);

      function My_Driver (M : Menu;
                          K : Key_Code;
                          P : Panel) return Boolean;

      package Mh is new Sample.Menu_Demo.Handler (My_Driver);

      Itm : Item_Array_Access := new Item_Array'
        (New_Item ("Menu Layout Options"),
         New_Item ("Demo of Hook functions"),
         Null_Item);
      M : Menu := New_Menu (Itm);

      U1 : constant User_Data_Access := new User_Data'(4711);
      U2 : User_Data_Access;
      U3 : constant User_Data_Access := new User_Data'(4712);
      U4 : User_Data_Access;

      function My_Driver (M : Menu;
                          K : Key_Code;
                          P : Panel) return Boolean
      is
         Idx   : constant Positive := Get_Index (Current (M));
      begin
         if K in User_Key_Code'Range then
            if K = QUIT then
               return True;
            elsif K = SELECT_ITEM then
               if Idx in Itm'Range then
                  Hide (P);
                  Update_Panels;
               end if;
               case Idx is
                  when 1 => Spacing_Demo.Spacing_Test;
                  when others => Not_Implemented;
               end case;
               if Idx in Itm'Range then
                  Top (P);
                  Show (P);
                  Update_Panels;
                  Update_Screen;
               end if;
            end if;
         end if;
         return False;
      end My_Driver;
   begin
      Push_Environment ("MENU00");
      Notepad ("MENU-PAD00");
      Default_Labels;
      Refresh_Soft_Label_Keys_Without_Update;
      Set_Pad_Character (M, '|');

      MUD.Set_User_Data (M, U1);
      IUD.Set_User_Data (Itm.all (1), U3);

      Mh.Drive_Me (M);

      MUD.Get_User_Data (M, U2);
      pragma Assert (U1 = U2 and U1.all = 4711);

      IUD.Get_User_Data (Itm.all (1), U4);
      pragma Assert (U3 = U4 and U3.all = 4712);

      Pop_Environment;
      Delete (M);
      Free (Itm, True);
   end Demo;

end Sample.Menu_Demo;