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gerrit.omnirom.org / android_external_libncurses / refs/heads/android-16 / . / Ada95 / samples / sample-menu_demo-handler.adb
blob: ebbaf43ce33b5062f09741942760cbfd3bbc5670 [file] [log] [blame]
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]1------------------------------------------------------------------------------
2-- --
3-- GNAT ncurses Binding Samples --
4-- --
5-- Sample.Menu_Demo.Handler --
6-- --
7-- B O D Y --
8-- --
9------------------------------------------------------------------------------
micky3879b9f5e72025-07-08 18:04:53 -0400[diff] [blame]10-- Copyright 2020 Thomas E. Dickey --
11-- Copyright 1998-2004,2009 Free Software Foundation, Inc. --
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]12-- --
13-- Permission is hereby granted, free of charge, to any person obtaining a --
14-- copy of this software and associated documentation files (the --
15-- "Software"), to deal in the Software without restriction, including --
16-- without limitation the rights to use, copy, modify, merge, publish, --
17-- distribute, distribute with modifications, sublicense, and/or sell --
18-- copies of the Software, and to permit persons to whom the Software is --
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]19-- furnished to do so, subject to the following conditions : --
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]20-- --
21-- The above copyright notice and this permission notice shall be included --
22-- in all copies or substantial portions of the Software. --
23-- --
24-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS --
25-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF --
26-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. --
27-- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, --
28-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR --
29-- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR --
30-- THE USE OR OTHER DEALINGS IN THE SOFTWARE. --
31-- --
32-- Except as contained in this notice, the name(s) of the above copyright --
33-- holders shall not be used in advertising or otherwise to promote the --
34-- sale, use or other dealings in this Software without prior written --
35-- authorization. --
36------------------------------------------------------------------------------
37-- Author: Juergen Pfeifer, 1996
38-- Version Control
micky3879b9f5e72025-07-08 18:04:53 -0400[diff] [blame]39-- $Revision: 1.17 $
40-- $Date: 2020/02/02 23:34:34 $
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]41-- Binding Version 01.00
42------------------------------------------------------------------------------
43with Sample.Menu_Demo.Aux;
44with Sample.Manifest; use Sample.Manifest;
45with Terminal_Interface.Curses.Mouse; use Terminal_Interface.Curses.Mouse;
46
47package body Sample.Menu_Demo.Handler is
48
49 package Aux renames Sample.Menu_Demo.Aux;
50
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]51 procedure Drive_Me (M : Menu;
52 Title : String := "")
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]53 is
54 L : Line_Count;
55 C : Column_Count;
56 Y : Line_Position;
57 X : Column_Position;
58 begin
59 Aux.Geometry (M, L, C, Y, X);
60 Drive_Me (M, Y, X, Title);
61 end Drive_Me;
62
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]63 procedure Drive_Me (M : Menu;
64 Lin : Line_Position;
65 Col : Column_Position;
66 Title : String := "")
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]67 is
68 Mask : Event_Mask := No_Events;
69 Old : Event_Mask;
70 Pan : Panel := Aux.Create (M, Title, Lin, Col);
71 V : Cursor_Visibility := Invisible;
72 begin
73 -- We are only interested in Clicks with the left button
74 Register_Reportable_Events (Left, All_Clicks, Mask);
75 Old := Start_Mouse (Mask);
76 Set_Cursor_Visibility (V);
77 loop
78 declare
79 K : Key_Code := Aux.Get_Request (M, Pan);
80 R : constant Driver_Result := Driver (M, K);
81 begin
82 case R is
83 when Menu_Ok => null;
84 when Unknown_Request =>
85 declare
86 I : constant Item := Current (M);
87 O : Item_Option_Set;
88 begin
89 if K = Key_Mouse then
90 K := SELECT_ITEM;
91 end if;
92 Get_Options (I, O);
93 if K = SELECT_ITEM and then not O.Selectable then
94 Beep;
95 else
96 if My_Driver (M, K, Pan) then
97 exit;
98 end if;
99 end if;
100 end;
101 when others => Beep;
102 end case;
103 end;
104 end loop;
105 End_Mouse (Old);
106 Aux.Destroy (M, Pan);
107 end Drive_Me;
108
109end Sample.Menu_Demo.Handler;