+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNAT ncurses Binding --
--- --
--- Terminal_Interface.Curses.Mouse --
--- --
--- 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 <Juergen.Pfeifer@T-Online.de> 1996
--- Version Control:
--- $Revision: 1.9 $
--- Binding Version 00.93
-------------------------------------------------------------------------------
-with System;
-
-with Terminal_Interface.Curses.Aux; use Terminal_Interface.Curses.Aux;
-with Interfaces;
-with Interfaces.C;
-with Unchecked_Conversion;
-
-package body Terminal_Interface.Curses.Mouse is
-
- use type System.Bit_Order;
- use type Interfaces.C.int;
-
- function CInt_To_Mask is new
- Unchecked_Conversion (Source => C_Int,
- Target => Event_Mask);
-
- function Mask_To_CInt is new
- Unchecked_Conversion (Source => Event_Mask,
- Target => C_Int);
-
- function Has_Mouse return Boolean
- is
- function Mouse_Avail return C_Int;
- pragma Import (C, Mouse_Avail, "_nc_has_mouse");
- begin
- if Has_Key (Key_Mouse) or else Mouse_Avail /= 0 then
- return True;
- else
- return False;
- end if;
- end Has_Mouse;
-
- function Get_Mouse return Mouse_Event
- is
- type Event_Access is access all Mouse_Event;
-
- function Getmouse (Ev : Event_Access) return C_Int;
- pragma Import (C, Getmouse, "getmouse");
-
- Event : aliased Mouse_Event;
- begin
- if Getmouse (Event'Access) = Curses_Err then
- raise Curses_Exception;
- end if;
- return Event;
- end Get_Mouse;
-
- procedure Register_Reportable_Event (B : in Mouse_Button;
- S : in Button_State;
- Mask : in out Event_Mask)
- is
- type Evt_Access is access all Event_Mask;
- function Register (B : C_Int;
- S : C_Int;
- M : Evt_Access) return C_Int;
- pragma Import (C, Register, "_nc_ada_mouse_mask");
-
- T : aliased Event_Mask := Mask;
- M : Evt_Access := T'Access;
- R : constant C_Int := Register (C_Int (Mouse_Button'Pos (B)),
- C_Int (Button_State'Pos (S)),
- M);
- begin
- if R = Curses_Err then
- raise Curses_Exception;
- end if;
- Mask := T;
- end Register_Reportable_Event;
-
- function Start_Mouse (Mask : Event_Mask := All_Events)
- return Event_Mask
- is
- type Int_Access is access all C_Int;
- function MMask (M : C_Int; O : Int_Access := null) return C_Int;
- pragma Import (C, MMask, "mousemask");
- R : C_Int;
- begin
- R := MMask (Mask_To_CInt (Mask));
- return CInt_To_Mask (R);
- end Start_Mouse;
-
- procedure End_Mouse
- is
- Old : constant Event_Mask := Start_Mouse (No_Events);
- begin
- null;
- end End_Mouse;
-
- procedure Get_Event (Event : in Mouse_Event;
- Y : out Line_Position;
- X : out Column_Position;
- Button : out Mouse_Button;
- State : out Button_State)
- is
- procedure Dispatch_Event (M : in C_Int;
- B : out C_Int;
- S : out C_Int);
- pragma Import (C, Dispatch_Event, "_nc_ada_mouse_event");
-
- Mask : constant Interfaces.C.int := Mask_To_CInt (Event.Bstate);
- B, S : C_Int;
- begin
- X := Column_Position (Event.X);
- Y := Line_Position (Event.Y);
- Dispatch_Event (Mask, B, S);
- Button := Mouse_Button'Val (B);
- State := Button_State'Val (S);
- end Get_Event;
-
- procedure Unget_Mouse (Event : in Mouse_Event)
- is
- function Ungetmouse (Ev : Mouse_Event) return C_Int;
- pragma Import (C, Ungetmouse, "ungetmouse");
- begin
- if Ungetmouse (Event) = Curses_Err then
- raise Curses_Exception;
- end if;
- end Unget_Mouse;
-
- function Enclosed_In_Window (Win : Window := Standard_Window;
- Event : Mouse_Event) return Boolean
- is
- function Wenclose (Win : Window; Y : C_Int; X : C_Int) return C_Int;
- pragma Import (C, Wenclose, "wenclose");
- begin
- if Wenclose (Win, C_Int (Event.Y), C_Int (Event.X)) = Curses_False then
- return False;
- else
- return True;
- end if;
- end Enclosed_In_Window;
-
- function Mouse_Interval (Msec : Natural := 200) return Natural
- is
- function Mouseinterval (Msec : C_Int) return C_Int;
- pragma Import (C, Mouseinterval, "mouseinterval");
- begin
- return Natural (Mouseinterval (C_Int (Msec)));
- end Mouse_Interval;
-
-end Terminal_Interface.Curses.Mouse;
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