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Diffstat (limited to 'ncurses-5.3/Ada95/samples/sample-menu_demo-aux.adb')
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diff --git a/ncurses-5.3/Ada95/samples/sample-menu_demo-aux.adb b/ncurses-5.3/Ada95/samples/sample-menu_demo-aux.adb new file mode 100644 index 0000000..6bec082 --- /dev/null +++ b/ncurses-5.3/Ada95/samples/sample-menu_demo-aux.adb @@ -0,0 +1,205 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT ncurses Binding Samples -- +-- -- +-- Sample.Menu_Demo.Aux -- +-- -- +-- B O D Y -- +-- -- +------------------------------------------------------------------------------ +-- Copyright (c) 1998 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 +-- Contact: http://www.familiepfeifer.de/Contact.aspx?Lang=en +-- Version Control +-- $Revision$ +-- Binding Version 01.00 +------------------------------------------------------------------------------ +with Ada.Characters.Latin_1; use Ada.Characters.Latin_1; + +with Sample.Manifest; use Sample.Manifest; +with Sample.Helpers; use Sample.Helpers; +with Sample.Keyboard_Handler; use Sample.Keyboard_Handler; +with Sample.Explanation; use Sample.Explanation; + +package body Sample.Menu_Demo.Aux is + + procedure Geometry (M : in Menu; + L : out Line_Count; + C : out Column_Count; + Y : out Line_Position; + X : out Column_Position; + Fy : out Line_Position; + Fx : out Column_Position); + + procedure Geometry (M : in Menu; + L : out Line_Count; -- Lines used for menu + C : out Column_Count; -- Columns used for menu + Y : out Line_Position; -- Proposed Line for menu + X : out Column_Position; -- Proposed Column for menu + Fy : out Line_Position; -- Vertical inner frame + Fx : out Column_Position) -- Horiz. inner frame + is + Spc_Desc : Column_Position; -- spaces between description and item + begin + Set_Mark (M, Menu_Marker); + + Spacing (M, Spc_Desc, Fy, Fx); + Scale (M, L, C); + + Fx := Fx + Column_Position (Fy - 1); -- looks a bit nicer + + L := L + 2 * Fy; -- count for frame at top and bottom + C := C + 2 * Fx; -- " + + -- Calculate horizontal coordinate at the screen center + X := (Columns - C) / 2; + Y := 1; -- always startin line 1 + + end Geometry; + + procedure Geometry (M : in Menu; + L : out Line_Count; -- Lines used for menu + C : out Column_Count; -- Columns used for menu + Y : out Line_Position; -- Proposed Line for menu + X : out Column_Position) -- Proposed Column for menu + is + Fy : Line_Position; + Fx : Column_Position; + begin + Geometry (M, L, C, Y, X, Fy, Fx); + end Geometry; + + function Create (M : Menu; + Title : String; + Lin : Line_Position; + Col : Column_Position) return Panel + is + W, S : Window; + L : Line_Count; + C : Column_Count; + Y, Fy : Line_Position; + X, Fx : Column_Position; + Pan : Panel; + begin + Geometry (M, L, C, Y, X, Fy, Fx); + W := New_Window (L, C, Lin, Col); + Set_Meta_Mode (W); + Set_KeyPad_Mode (W); + if Has_Colors then + Set_Background (Win => W, + Ch => (Ch => ' ', + Color => Menu_Back_Color, + Attr => Normal_Video)); + Set_Foreground (Men => M, Color => Menu_Fore_Color); + Set_Background (Men => M, Color => Menu_Back_Color); + Set_Grey (Men => M, Color => Menu_Grey_Color); + Erase (W); + end if; + S := Derived_Window (W, L - Fy, C - Fx, Fy, Fx); + Set_Meta_Mode (S); + Set_KeyPad_Mode (S); + Box (W); + Set_Window (M, W); + Set_Sub_Window (M, S); + if Title'Length > 0 then + Window_Title (W, Title); + end if; + Pan := New_Panel (W); + Post (M); + return Pan; + end Create; + + procedure Destroy (M : in Menu; + P : in out Panel) + is + W, S : Window; + begin + W := Get_Window (M); + S := Get_Sub_Window (M); + Post (M, False); + Erase (W); + Delete (P); + Set_Window (M, Null_Window); + Set_Sub_Window (M, Null_Window); + Delete (S); + Delete (W); + Update_Panels; + end Destroy; + + function Get_Request (M : Menu; P : Panel) return Key_Code + is + W : constant Window := Get_Window (M); + K : Real_Key_Code; + Ch : Character; + begin + Top (P); + loop + K := Get_Key (W); + if K in Special_Key_Code'Range then + case K is + when HELP_CODE => Explain_Context; + when EXPLAIN_CODE => Explain ("MENUKEYS"); + when Key_Home => return REQ_FIRST_ITEM; + when QUIT_CODE => return QUIT; + when Key_Cursor_Down => return REQ_DOWN_ITEM; + when Key_Cursor_Up => return REQ_UP_ITEM; + when Key_Cursor_Left => return REQ_LEFT_ITEM; + when Key_Cursor_Right => return REQ_RIGHT_ITEM; + when Key_End => return REQ_LAST_ITEM; + when Key_Backspace => return REQ_BACK_PATTERN; + when Key_Next_Page => return REQ_SCR_DPAGE; + when Key_Previous_Page => return REQ_SCR_UPAGE; + when others => return K; + end case; + elsif K in Normal_Key_Code'Range then + Ch := Character'Val (K); + case Ch is + when CAN => return QUIT; -- CTRL-X + when SO => return REQ_NEXT_ITEM; -- CTRL-N + when DLE => return REQ_PREV_ITEM; -- CTRL-P + when NAK => return REQ_SCR_ULINE; -- CTRL-U + when EOT => return REQ_SCR_DLINE; -- CTRL-D + when ACK => return REQ_SCR_DPAGE; -- CTRL-F + when STX => return REQ_SCR_UPAGE; -- CTRL-B + when EM => return REQ_CLEAR_PATTERN; -- CTRL-Y + when BS => return REQ_BACK_PATTERN; -- CTRL-H + when SOH => return REQ_NEXT_MATCH; -- CTRL-A + when ENQ => return REQ_PREV_MATCH; -- CTRL-E + when DC4 => return REQ_TOGGLE_ITEM; -- CTRL-T + + when CR | LF => return SELECT_ITEM; + when others => return K; + end case; + else + return K; + end if; + end loop; + end Get_Request; + +end Sample.Menu_Demo.Aux; + |