------------------------------------------------------------------------------ -- -- -- GNAT ncurses Binding -- -- -- -- Terminal_Interface.Curses.Mouse -- -- -- -- S P E C -- -- -- ------------------------------------------------------------------------------ -- Copyright 2020 Thomas E. Dickey -- -- Copyright 1998-2014,2015 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: 1.33 @ -- @Date: 2020/02/02 23:34:34 @ -- Binding Version 01.00 ------------------------------------------------------------------------------ with System; package Terminal_Interface.Curses.Mouse is pragma Preelaborate (Terminal_Interface.Curses.Mouse); -- |===================================================================== -- | Man page curs_mouse.3x -- |===================================================================== -- mouse_trafo, wmouse_trafo are implemented as Transform_Coordinates -- in the parent package. -- -- Not implemented: -- REPORT_MOUSE_POSITION (i.e. as a parameter to Register_Reportable_Event -- or Start_Mouse) type Event_Mask is private; No_Events : constant Event_Mask; All_Events : constant Event_Mask; type Mouse_Button is (Left, -- aka: Button 1 Middle, -- aka: Button 2 Right, -- aka: Button 3 Button4, -- aka: Button 4 Control, -- Control Key Shift, -- Shift Key Alt); -- ALT Key subtype Real_Buttons is Mouse_Button range Left .. Button4; subtype Modifier_Keys is Mouse_Button range Control .. Alt; type Button_State is (Released, Pressed, Clicked, Double_Clicked, Triple_Clicked); type Button_States is array (Button_State) of Boolean; pragma Pack (Button_States); All_Clicks : constant Button_States := (Clicked .. Triple_Clicked => True, others => False); All_States : constant Button_States := (others => True); type Mouse_Event is private; -- |===================================================================== -- | Man page curs_mouse.3x -- |===================================================================== function Has_Mouse return Boolean; -- Return true if a mouse device is supported, false otherwise. procedure Register_Reportable_Event (Button : Mouse_Button; State : Button_State; Mask : in out Event_Mask); -- Stores the event described by the button and the state in the mask. -- Before you call this the first time, you should initialize the mask -- with the Empty_Mask constant pragma Inline (Register_Reportable_Event); procedure Register_Reportable_Events (Button : Mouse_Button; State : Button_States; Mask : in out Event_Mask); -- Register all events described by the Button and the State bitmap. -- Before you call this the first time, you should initialize the mask -- with the Empty_Mask constant -- | -- There is one difference to mousmask(): we return the value of the -- old mask, that means the event mask value before this call. -- Not Implemented: The library version -- returns a Mouse_Mask that tells which events are reported. function Start_Mouse (Mask : Event_Mask := All_Events) return Event_Mask; -- AKA: mousemask() pragma Inline (Start_Mouse); procedure End_Mouse (Mask : Event_Mask := No_Events); -- Terminates the mouse, restores the specified event mask pragma Inline (End_Mouse); -- | function Get_Mouse return Mouse_Event; -- AKA: getmouse() pragma Inline (Get_Mouse); procedure Get_Event (Event : Mouse_Event; Y : out Line_Position; X : out Column_Position; Button : out Mouse_Button; State : out Button_State); -- !!! Warning: X and Y are screen coordinates. Due to ripped of lines they -- may not be identical to window coordinates. -- Not Implemented: Get_Event only reports one event, the C library -- version supports multiple events, e.g. {click-1, click-3} pragma Inline (Get_Event); -- | procedure Unget_Mouse (Event : Mouse_Event); -- AKA: ungetmouse() pragma Inline (Unget_Mouse); -- | function Enclosed_In_Window (Win : Window := Standard_Window; Event : Mouse_Event) return Boolean; -- AKA: wenclose() -- But : use event instead of screen coordinates. pragma Inline (Enclosed_In_Window); -- | function Mouse_Interval (Msec : Natural := 200) return Natural; -- AKA: mouseinterval() pragma Inline (Mouse_Interval); private -- This can be as little as 32 bits (unsigned), or as long as the system's -- unsigned long. Declare it as the minimum size to handle all valid -- sizes. type Event_Mask is mod 4294967296; type Mouse_Event is record Id : Integer range Integer (Interfaces.C.short'First) .. Integer (Interfaces.C.short'Last); X, Y, Z : Integer range Integer (Interfaces.C.int'First) .. Integer (Interfaces.C.int'Last); Bstate : Event_Mask; end record; pragma Convention (C, Mouse_Event); for Mouse_Event use record Id at 0 range Curses_Constants.MEVENT_id_First .. Curses_Constants.MEVENT_id_Last; X at 0 range Curses_Constants.MEVENT_x_First .. Curses_Constants.MEVENT_x_Last; Y at 0 range Curses_Constants.MEVENT_y_First .. Curses_Constants.MEVENT_y_Last; Z at 0 range Curses_Constants.MEVENT_z_First .. Curses_Constants.MEVENT_z_Last; Bstate at 0 range Curses_Constants.MEVENT_bstate_First .. Curses_Constants.MEVENT_bstate_Last; end record; for Mouse_Event'Size use Curses_Constants.MEVENT_Size; Generation_Bit_Order : System.Bit_Order renames Curses_Constants.Bit_Order; BUTTON_CTRL : constant Event_Mask := Curses_Constants.BUTTON_CTRL; BUTTON_SHIFT : constant Event_Mask := Curses_Constants.BUTTON_SHIFT; BUTTON_ALT : constant Event_Mask := Curses_Constants.BUTTON_ALT; BUTTON1_EVENTS : constant Event_Mask := Curses_Constants.all_events_button_1; BUTTON2_EVENTS : constant Event_Mask := Curses_Constants.all_events_button_2; BUTTON3_EVENTS : constant Event_Mask := Curses_Constants.all_events_button_3; BUTTON4_EVENTS : constant Event_Mask := Curses_Constants.all_events_button_4; ALL_MOUSE_EVENTS : constant Event_Mask := Curses_Constants.ALL_MOUSE_EVENTS; No_Events : constant Event_Mask := 0; All_Events : constant Event_Mask := ALL_MOUSE_EVENTS; end Terminal_Interface.Curses.Mouse;