1 ------------------------------------------------------------------------------
3 -- GNAT ncurses Binding Samples --
5 -- Sample.Menu_Demo.Aux --
9 ------------------------------------------------------------------------------
10 -- Copyright (c) 1998-2006,2009 Free Software Foundation, Inc. --
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: --
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 --
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 --
35 ------------------------------------------------------------------------------
36 -- Author: Juergen Pfeifer, 1996
39 -- $Date: 2009/12/26 17:38:58 $
40 -- Binding Version 01.00
41 ------------------------------------------------------------------------------
42 with Ada
.Characters
.Latin_1
; use Ada
.Characters
.Latin_1
;
44 with Sample
.Manifest
; use Sample
.Manifest
;
45 with Sample
.Helpers
; use Sample
.Helpers
;
46 with Sample
.Keyboard_Handler
; use Sample
.Keyboard_Handler
;
47 with Sample
.Explanation
; use Sample
.Explanation
;
49 package body Sample
.Menu_Demo
.Aux
is
51 procedure Geometry
(M
: Menu
;
54 Y
: out Line_Position
;
55 X
: out Column_Position
;
56 Fy
: out Line_Position
;
57 Fx
: out Column_Position
);
59 procedure Geometry
(M
: Menu
;
60 L
: out Line_Count
; -- Lines used for menu
61 C
: out Column_Count
; -- Columns used for menu
62 Y
: out Line_Position
; -- Proposed Line for menu
63 X
: out Column_Position
; -- Proposed Column for menu
64 Fy
: out Line_Position
; -- Vertical inner frame
65 Fx
: out Column_Position
) -- Horiz. inner frame
67 Spc_Desc
: Column_Position
; -- spaces between description and item
69 Set_Mark
(M
, Menu_Marker
);
71 Spacing
(M
, Spc_Desc
, Fy
, Fx
);
74 Fx
:= Fx
+ Column_Position
(Fy
- 1); -- looks a bit nicer
76 L
:= L
+ 2 * Fy
; -- count for frame at top and bottom
79 -- Calculate horizontal coordinate at the screen center
80 X
:= (Columns
- C
) / 2;
81 Y
:= 1; -- always startin line 1
85 procedure Geometry
(M
: Menu
;
86 L
: out Line_Count
; -- Lines used for menu
87 C
: out Column_Count
; -- Columns used for menu
88 Y
: out Line_Position
; -- Proposed Line for menu
89 X
: out Column_Position
) -- Proposed Column for menu
94 Geometry
(M
, L
, C
, Y
, X
, Fy
, Fx
);
97 function Create
(M
: Menu
;
100 Col
: Column_Position
) return Panel
105 Y
, Fy
: Line_Position
;
106 X
, Fx
: Column_Position
;
109 Geometry
(M
, L
, C
, Y
, X
, Fy
, Fx
);
110 W
:= New_Window
(L
, C
, Lin
, Col
);
114 Set_Background
(Win
=> W
,
116 Color
=> Menu_Back_Color
,
117 Attr
=> Normal_Video
));
118 Set_Foreground
(Men
=> M
, Color
=> Menu_Fore_Color
);
119 Set_Background
(Men
=> M
, Color
=> Menu_Back_Color
);
120 Set_Grey
(Men
=> M
, Color
=> Menu_Grey_Color
);
123 S
:= Derived_Window
(W
, L
- Fy
, C
- Fx
, Fy
, Fx
);
128 Set_Sub_Window
(M
, S
);
129 if Title
'Length > 0 then
130 Window_Title
(W
, Title
);
132 Pan
:= New_Panel
(W
);
137 procedure Destroy
(M
: Menu
;
143 S
:= Get_Sub_Window
(M
);
147 Set_Window
(M
, Null_Window
);
148 Set_Sub_Window
(M
, Null_Window
);
154 function Get_Request
(M
: Menu
; P
: Panel
) return Key_Code
156 W
: constant Window
:= Get_Window
(M
);
163 if K
in Special_Key_Code
'Range then
165 when HELP_CODE
=> Explain_Context
;
166 when EXPLAIN_CODE
=> Explain
("MENUKEYS");
167 when Key_Home
=> return REQ_FIRST_ITEM
;
168 when QUIT_CODE
=> return QUIT
;
169 when Key_Cursor_Down
=> return REQ_DOWN_ITEM
;
170 when Key_Cursor_Up
=> return REQ_UP_ITEM
;
171 when Key_Cursor_Left
=> return REQ_LEFT_ITEM
;
172 when Key_Cursor_Right
=> return REQ_RIGHT_ITEM
;
173 when Key_End
=> return REQ_LAST_ITEM
;
174 when Key_Backspace
=> return REQ_BACK_PATTERN
;
175 when Key_Next_Page
=> return REQ_SCR_DPAGE
;
176 when Key_Previous_Page
=> return REQ_SCR_UPAGE
;
177 when others => return K
;
179 elsif K
in Normal_Key_Code
'Range then
180 Ch
:= Character'Val (K
);
182 when CAN
=> return QUIT
; -- CTRL-X
183 when SO
=> return REQ_NEXT_ITEM
; -- CTRL-N
184 when DLE
=> return REQ_PREV_ITEM
; -- CTRL-P
185 when NAK
=> return REQ_SCR_ULINE
; -- CTRL-U
186 when EOT
=> return REQ_SCR_DLINE
; -- CTRL-D
187 when ACK
=> return REQ_SCR_DPAGE
; -- CTRL-F
188 when STX
=> return REQ_SCR_UPAGE
; -- CTRL-B
189 when EM
=> return REQ_CLEAR_PATTERN
; -- CTRL-Y
190 when BS
=> return REQ_BACK_PATTERN
; -- CTRL-H
191 when SOH
=> return REQ_NEXT_MATCH
; -- CTRL-A
192 when ENQ
=> return REQ_PREV_MATCH
; -- CTRL-E
193 when DC4
=> return REQ_TOGGLE_ITEM
; -- CTRL-T
195 when CR | LF
=> return SELECT_ITEM
;
196 when others => return K
;
204 end Sample
.Menu_Demo
.Aux
;