/usr/share/doc/libncursesada-doc/examples/sample-menu_demo-handler.adb is in libncursesada-doc 5.9.20110404-3.
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-- --
-- GNAT ncurses Binding Samples --
-- --
-- Sample.Menu_Demo.Handler --
-- --
-- B O D Y --
-- --
------------------------------------------------------------------------------
-- Copyright (c) 1998-2004,2009 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: 1.16 $
-- $Date: 2009/12/26 17:38:58 $
-- Binding Version 01.00
------------------------------------------------------------------------------
with Sample.Menu_Demo.Aux;
with Sample.Manifest; use Sample.Manifest;
with Terminal_Interface.Curses.Mouse; use Terminal_Interface.Curses.Mouse;
package body Sample.Menu_Demo.Handler is
package Aux renames Sample.Menu_Demo.Aux;
procedure Drive_Me (M : Menu;
Title : String := "")
is
L : Line_Count;
C : Column_Count;
Y : Line_Position;
X : Column_Position;
begin
Aux.Geometry (M, L, C, Y, X);
Drive_Me (M, Y, X, Title);
end Drive_Me;
procedure Drive_Me (M : Menu;
Lin : Line_Position;
Col : Column_Position;
Title : String := "")
is
Mask : Event_Mask := No_Events;
Old : Event_Mask;
Pan : Panel := Aux.Create (M, Title, Lin, Col);
V : Cursor_Visibility := Invisible;
begin
-- We are only interested in Clicks with the left button
Register_Reportable_Events (Left, All_Clicks, Mask);
Old := Start_Mouse (Mask);
Set_Cursor_Visibility (V);
loop
declare
K : Key_Code := Aux.Get_Request (M, Pan);
R : constant Driver_Result := Driver (M, K);
begin
case R is
when Menu_Ok => null;
when Unknown_Request =>
declare
I : constant Item := Current (M);
O : Item_Option_Set;
begin
if K = Key_Mouse then
K := SELECT_ITEM;
end if;
Get_Options (I, O);
if K = SELECT_ITEM and then not O.Selectable then
Beep;
else
if My_Driver (M, K, Pan) then
exit;
end if;
end if;
end;
when others => Beep;
end case;
end;
end loop;
End_Mouse (Old);
Aux.Destroy (M, Pan);
end Drive_Me;
end Sample.Menu_Demo.Handler;
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