1997-05-15 12:00:00 +08:00
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------------------------------------------------------------------------------
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-- --
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-- GNAT ncurses Binding Samples --
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-- --
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-- Sample.Menu_Demo.Aux --
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-- --
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-- B O D Y --
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-- --
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1998-03-01 12:21:12 +08:00
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------------------------------------------------------------------------------
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2006-12-18 12:32:42 +08:00
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-- Copyright (c) 1998,2006 Free Software Foundation, Inc. --
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1998-03-01 12:21:12 +08:00
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-- --
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-- Permission is hereby granted, free of charge, to any person obtaining a --
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-- copy of this software and associated documentation files (the --
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-- "Software"), to deal in the Software without restriction, including --
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-- without limitation the rights to use, copy, modify, merge, publish, --
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-- distribute, distribute with modifications, sublicense, and/or sell --
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-- copies of the Software, and to permit persons to whom the Software is --
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-- furnished to do so, subject to the following conditions: --
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1997-05-15 12:00:00 +08:00
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-- --
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1998-03-01 12:21:12 +08:00
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-- The above copyright notice and this permission notice shall be included --
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-- in all copies or substantial portions of the Software. --
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1997-05-15 12:00:00 +08:00
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-- --
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1998-03-01 12:21:12 +08:00
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-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS --
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-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF --
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-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. --
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-- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, --
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-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR --
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-- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR --
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-- THE USE OR OTHER DEALINGS IN THE SOFTWARE. --
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1997-05-15 12:00:00 +08:00
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-- --
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1998-03-01 12:21:12 +08:00
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-- Except as contained in this notice, the name(s) of the above copyright --
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-- holders shall not be used in advertising or otherwise to promote the --
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-- sale, use or other dealings in this Software without prior written --
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-- authorization. --
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1997-05-15 12:00:00 +08:00
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------------------------------------------------------------------------------
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2002-10-13 11:35:53 +08:00
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-- Author: Juergen Pfeifer, 1996
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1997-05-15 12:00:00 +08:00
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-- Version Control
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2006-12-18 12:32:42 +08:00
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-- $Revision: 1.13 $
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-- $Date: 2006/06/25 14:30:22 $
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1999-10-24 12:32:42 +08:00
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-- Binding Version 01.00
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1997-05-15 12:00:00 +08:00
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------------------------------------------------------------------------------
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with Ada.Characters.Latin_1; use Ada.Characters.Latin_1;
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with Sample.Manifest; use Sample.Manifest;
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with Sample.Helpers; use Sample.Helpers;
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with Sample.Keyboard_Handler; use Sample.Keyboard_Handler;
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with Sample.Explanation; use Sample.Explanation;
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package body Sample.Menu_Demo.Aux is
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procedure Geometry (M : in Menu;
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L : out Line_Count;
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C : out Column_Count;
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Y : out Line_Position;
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X : out Column_Position;
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Fy : out Line_Position;
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Fx : out Column_Position);
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procedure Geometry (M : in Menu;
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L : out Line_Count; -- Lines used for menu
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C : out Column_Count; -- Columns used for menu
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Y : out Line_Position; -- Proposed Line for menu
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X : out Column_Position; -- Proposed Column for menu
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Fy : out Line_Position; -- Vertical inner frame
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Fx : out Column_Position) -- Horiz. inner frame
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is
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Spc_Desc : Column_Position; -- spaces between description and item
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begin
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Set_Mark (M, Menu_Marker);
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Spacing (M, Spc_Desc, Fy, Fx);
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Scale (M, L, C);
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Fx := Fx + Column_Position (Fy - 1); -- looks a bit nicer
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L := L + 2 * Fy; -- count for frame at top and bottom
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C := C + 2 * Fx; -- "
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-- Calculate horizontal coordinate at the screen center
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X := (Columns - C) / 2;
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Y := 1; -- always startin line 1
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end Geometry;
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procedure Geometry (M : in Menu;
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L : out Line_Count; -- Lines used for menu
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C : out Column_Count; -- Columns used for menu
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Y : out Line_Position; -- Proposed Line for menu
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X : out Column_Position) -- Proposed Column for menu
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is
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Fy : Line_Position;
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Fx : Column_Position;
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begin
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Geometry (M, L, C, Y, X, Fy, Fx);
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end Geometry;
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function Create (M : Menu;
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Title : String;
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Lin : Line_Position;
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Col : Column_Position) return Panel
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is
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W, S : Window;
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L : Line_Count;
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C : Column_Count;
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Y, Fy : Line_Position;
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X, Fx : Column_Position;
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Pan : Panel;
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begin
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Geometry (M, L, C, Y, X, Fy, Fx);
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W := New_Window (L, C, Lin, Col);
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Set_Meta_Mode (W);
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Set_KeyPad_Mode (W);
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if Has_Colors then
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Set_Background (Win => W,
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Ch => (Ch => ' ',
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Color => Menu_Back_Color,
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Attr => Normal_Video));
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Set_Foreground (Men => M, Color => Menu_Fore_Color);
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Set_Background (Men => M, Color => Menu_Back_Color);
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Set_Grey (Men => M, Color => Menu_Grey_Color);
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Erase (W);
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end if;
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S := Derived_Window (W, L - Fy, C - Fx, Fy, Fx);
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Set_Meta_Mode (S);
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Set_KeyPad_Mode (S);
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Box (W);
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Set_Window (M, W);
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Set_Sub_Window (M, S);
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if Title'Length > 0 then
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Window_Title (W, Title);
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end if;
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Pan := New_Panel (W);
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Post (M);
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return Pan;
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end Create;
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procedure Destroy (M : in Menu;
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P : in out Panel)
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is
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W, S : Window;
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begin
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W := Get_Window (M);
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S := Get_Sub_Window (M);
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Post (M, False);
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Erase (W);
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Delete (P);
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Set_Window (M, Null_Window);
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Set_Sub_Window (M, Null_Window);
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Delete (S);
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Delete (W);
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Update_Panels;
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end Destroy;
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function Get_Request (M : Menu; P : Panel) return Key_Code
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is
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W : constant Window := Get_Window (M);
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K : Real_Key_Code;
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Ch : Character;
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begin
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Top (P);
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loop
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K := Get_Key (W);
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if K in Special_Key_Code'Range then
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case K is
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when HELP_CODE => Explain_Context;
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when EXPLAIN_CODE => Explain ("MENUKEYS");
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when Key_Home => return REQ_FIRST_ITEM;
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when QUIT_CODE => return QUIT;
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when Key_Cursor_Down => return REQ_DOWN_ITEM;
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when Key_Cursor_Up => return REQ_UP_ITEM;
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when Key_Cursor_Left => return REQ_LEFT_ITEM;
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when Key_Cursor_Right => return REQ_RIGHT_ITEM;
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when Key_End => return REQ_LAST_ITEM;
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when Key_Backspace => return REQ_BACK_PATTERN;
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when Key_Next_Page => return REQ_SCR_DPAGE;
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when Key_Previous_Page => return REQ_SCR_UPAGE;
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when others => return K;
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end case;
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elsif K in Normal_Key_Code'Range then
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Ch := Character'Val (K);
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case Ch is
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1998-03-01 12:21:12 +08:00
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when CAN => return QUIT; -- CTRL-X
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1997-05-15 12:00:00 +08:00
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when SO => return REQ_NEXT_ITEM; -- CTRL-N
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when DLE => return REQ_PREV_ITEM; -- CTRL-P
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when NAK => return REQ_SCR_ULINE; -- CTRL-U
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when EOT => return REQ_SCR_DLINE; -- CTRL-D
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when ACK => return REQ_SCR_DPAGE; -- CTRL-F
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when STX => return REQ_SCR_UPAGE; -- CTRL-B
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1998-03-01 12:21:12 +08:00
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when EM => return REQ_CLEAR_PATTERN; -- CTRL-Y
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1997-05-15 12:00:00 +08:00
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when BS => return REQ_BACK_PATTERN; -- CTRL-H
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when SOH => return REQ_NEXT_MATCH; -- CTRL-A
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1998-03-01 12:21:12 +08:00
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when ENQ => return REQ_PREV_MATCH; -- CTRL-E
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1997-05-15 12:00:00 +08:00
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when DC4 => return REQ_TOGGLE_ITEM; -- CTRL-T
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1998-03-01 12:21:12 +08:00
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when CR | LF => return SELECT_ITEM;
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when others => return K;
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1997-05-15 12:00:00 +08:00
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end case;
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else
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return K;
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end if;
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end loop;
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end Get_Request;
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end Sample.Menu_Demo.Aux;
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