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Diffstat (limited to 'ncurses-5.3/Ada95/samples/sample-menu_demo.adb')
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diff --git a/ncurses-5.3/Ada95/samples/sample-menu_demo.adb b/ncurses-5.3/Ada95/samples/sample-menu_demo.adb new file mode 100644 index 0000000..f70e9c7 --- /dev/null +++ b/ncurses-5.3/Ada95/samples/sample-menu_demo.adb @@ -0,0 +1,391 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT ncurses Binding Samples -- +-- -- +-- Sample.Menu_Demo -- +-- -- +-- 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 Terminal_Interface.Curses; use Terminal_Interface.Curses; +with Terminal_Interface.Curses.Panels; use Terminal_Interface.Curses.Panels; +with Terminal_Interface.Curses.Menus; use Terminal_Interface.Curses.Menus; +with Terminal_Interface.Curses.Menus.Menu_User_Data; +with Terminal_Interface.Curses.Menus.Item_User_Data; + +with Sample.Manifest; use Sample.Manifest; +with Sample.Function_Key_Setting; use Sample.Function_Key_Setting; +with Sample.Menu_Demo.Handler; +with Sample.Helpers; use Sample.Helpers; +with Sample.Explanation; use Sample.Explanation; + +package body Sample.Menu_Demo is + + package Spacing_Demo is + procedure Spacing_Test; + end Spacing_Demo; + + package body Spacing_Demo is + + procedure Spacing_Test + is + function My_Driver (M : Menu; + K : Key_Code; + P : Panel) return Boolean; + + procedure Set_Option_Key; + procedure Set_Select_Key; + procedure Set_Description_Key; + procedure Set_Hide_Key; + + package Mh is new Sample.Menu_Demo.Handler (My_Driver); + + I : Item_Array_Access := new Item_Array' + (New_Item ("January", "31 Days"), + New_Item ("February", "28/29 Days"), + New_Item ("March", "31 Days"), + New_Item ("April", "30 Days"), + New_Item ("May", "31 Days"), + New_Item ("June", "30 Days"), + New_Item ("July", "31 Days"), + New_Item ("August", "31 Days"), + New_Item ("September", "30 Days"), + New_Item ("October", "31 Days"), + New_Item ("November", "30 Days"), + New_Item ("December", "31 Days"), + Null_Item); + + M : Menu := New_Menu (I); + Flip_State : Boolean := True; + Hide_Long : Boolean := False; + + type Format_Code is (Four_By_1, Four_By_2, Four_By_3); + type Operations is (Flip, Reorder, Reformat, Reselect, Describe); + + type Change is array (Operations) of Boolean; + pragma Pack (Change); + No_Change : constant Change := Change'(others => False); + + Current_Format : Format_Code := Four_By_1; + To_Change : Change := No_Change; + + function My_Driver (M : Menu; + K : Key_Code; + P : Panel) return Boolean + is + begin + To_Change := No_Change; + if K in User_Key_Code'Range then + if K = QUIT then + return True; + end if; + end if; + if K in Special_Key_Code'Range then + case K is + when Key_F4 => + To_Change (Flip) := True; + return True; + when Key_F5 => + To_Change (Reformat) := True; + Current_Format := Four_By_1; + return True; + when Key_F6 => + To_Change (Reformat) := True; + Current_Format := Four_By_2; + return True; + when Key_F7 => + To_Change (Reformat) := True; + Current_Format := Four_By_3; + return True; + when Key_F8 => + To_Change (Reorder) := True; + return True; + when Key_F9 => + To_Change (Reselect) := True; + return True; + when Key_F10 => + if Current_Format /= Four_By_3 then + To_Change (Describe) := True; + return True; + else + return False; + end if; + when Key_F11 => + Hide_Long := not Hide_Long; + declare + O : Item_Option_Set; + begin + for J in I'Range loop + Get_Options (I (J), O); + O.Selectable := True; + if Hide_Long then + case J is + when 1 | 3 | 5 | 7 | 8 | 10 | 12 => + O.Selectable := False; + when others => null; + end case; + end if; + Set_Options (I (J), O); + end loop; + end; + return False; + when others => null; + end case; + end if; + return False; + end My_Driver; + + procedure Set_Option_Key + is + O : Menu_Option_Set; + begin + if Current_Format = Four_By_1 then + Set_Soft_Label_Key (8, ""); + else + Get_Options (M, O); + if O.Row_Major_Order then + Set_Soft_Label_Key (8, "O-Col"); + else + Set_Soft_Label_Key (8, "O-Row"); + end if; + end if; + Refresh_Soft_Label_Keys_Without_Update; + end Set_Option_Key; + + procedure Set_Select_Key + is + O : Menu_Option_Set; + begin + Get_Options (M, O); + if O.One_Valued then + Set_Soft_Label_Key (9, "Multi"); + else + Set_Soft_Label_Key (9, "Singl"); + end if; + Refresh_Soft_Label_Keys_Without_Update; + end Set_Select_Key; + + procedure Set_Description_Key + is + O : Menu_Option_Set; + begin + if Current_Format = Four_By_3 then + Set_Soft_Label_Key (10, ""); + else + Get_Options (M, O); + if O.Show_Descriptions then + Set_Soft_Label_Key (10, "-Desc"); + else + Set_Soft_Label_Key (10, "+Desc"); + end if; + end if; + Refresh_Soft_Label_Keys_Without_Update; + end Set_Description_Key; + + procedure Set_Hide_Key + is + begin + if Hide_Long then + Set_Soft_Label_Key (11, "Enab"); + else + Set_Soft_Label_Key (11, "Disab"); + end if; + Refresh_Soft_Label_Keys_Without_Update; + end Set_Hide_Key; + + begin + Push_Environment ("MENU01"); + Notepad ("MENU-PAD01"); + Default_Labels; + Set_Soft_Label_Key (4, "Flip"); + Set_Soft_Label_Key (5, "4x1"); + Set_Soft_Label_Key (6, "4x2"); + Set_Soft_Label_Key (7, "4x3"); + Set_Option_Key; + Set_Select_Key; + Set_Description_Key; + Set_Hide_Key; + + Set_Format (M, 4, 1); + loop + Mh.Drive_Me (M); + exit when To_Change = No_Change; + if To_Change (Flip) then + if Flip_State then + Flip_State := False; + Set_Spacing (M, 3, 2, 0); + else + Flip_State := True; + Set_Spacing (M); + end if; + elsif To_Change (Reformat) then + case Current_Format is + when Four_By_1 => Set_Format (M, 4, 1); + when Four_By_2 => Set_Format (M, 4, 2); + when Four_By_3 => + declare + O : Menu_Option_Set; + begin + Get_Options (M, O); + O.Show_Descriptions := False; + Set_Options (M, O); + Set_Format (M, 4, 3); + end; + end case; + Set_Option_Key; + Set_Description_Key; + elsif To_Change (Reorder) then + declare + O : Menu_Option_Set; + begin + Get_Options (M, O); + O.Row_Major_Order := not O.Row_Major_Order; + Set_Options (M, O); + Set_Option_Key; + end; + elsif To_Change (Reselect) then + declare + O : Menu_Option_Set; + begin + Get_Options (M, O); + O.One_Valued := not O.One_Valued; + Set_Options (M, O); + Set_Select_Key; + end; + elsif To_Change (Describe) then + declare + O : Menu_Option_Set; + begin + Get_Options (M, O); + O.Show_Descriptions := not O.Show_Descriptions; + Set_Options (M, O); + Set_Description_Key; + end; + else + null; + end if; + end loop; + Set_Spacing (M); + Flip_State := True; + + Pop_Environment; + pragma Assert (Get_Index (Items (M, 1)) = Get_Index (I (1))); + Delete (M); + Free (I, True); + end Spacing_Test; + end Spacing_Demo; + + procedure Demo + is + -- We use this datatype only to test the instantiation of + -- the Menu_User_Data generic package. No functionality + -- behind it. + type User_Data is new Integer; + type User_Data_Access is access User_Data; + + -- Those packages are only instantiated to test the usability. + -- No real functionality is shown in the demo. + package MUD is new Menu_User_Data (User_Data, User_Data_Access); + package IUD is new Item_User_Data (User_Data, User_Data_Access); + + function My_Driver (M : Menu; + K : Key_Code; + P : Panel) return Boolean; + + package Mh is new Sample.Menu_Demo.Handler (My_Driver); + + Itm : Item_Array_Access := new Item_Array' + (New_Item ("Menu Layout Options"), + New_Item ("Demo of Hook functions"), + Null_Item); + M : Menu := New_Menu (Itm); + + U1 : User_Data_Access := new User_Data'(4711); + U2 : User_Data_Access; + U3 : User_Data_Access := new User_Data'(4712); + U4 : User_Data_Access; + + function My_Driver (M : Menu; + K : Key_Code; + P : Panel) return Boolean + is + Idx : constant Positive := Get_Index (Current (M)); + begin + if K in User_Key_Code'Range then + if K = QUIT then + return True; + elsif K = SELECT_ITEM then + if Idx in Itm'Range then + Hide (P); + Update_Panels; + end if; + case Idx is + when 1 => Spacing_Demo.Spacing_Test; + when others => Not_Implemented; + end case; + if Idx in Itm'Range then + Top (P); + Show (P); + Update_Panels; + Update_Screen; + end if; + end if; + end if; + return False; + end My_Driver; + begin + Push_Environment ("MENU00"); + Notepad ("MENU-PAD00"); + Default_Labels; + Refresh_Soft_Label_Keys_Without_Update; + Set_Pad_Character (M, '|'); + + MUD.Set_User_Data (M, U1); + IUD.Set_User_Data (Itm (1), U3); + + Mh.Drive_Me (M); + + MUD.Get_User_Data (M, U2); + pragma Assert (U1 = U2 and U1.all = 4711); + + IUD.Get_User_Data (Itm (1), U4); + pragma Assert (U3 = U4 and U3.all = 4712); + + Pop_Environment; + Delete (M); + Free (Itm, True); + end Demo; + +end Sample.Menu_Demo; |