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%% Copyright (c) 2014-2015, Loïc Hoguin <[email protected]>
%%
%% Permission to use, copy, modify, and/or distribute this software for any
%% purpose with or without fee is hereby granted, provided that the above
%% copyright notice and this permission notice appear in all copies.
%%
%% THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
%% WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
%% MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
%% ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
%% WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
%% ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
%% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-module(sdl_events).
-export([flush/1]).
-export([flush/2]).
-export([get/3]).
-export([has/1]).
-export([has/2]).
-export([peek/3]).
-export([poll/0]).
-export([pump/0]).
-type event_type() :: first
| quit
| app_terminating | app_low_memory | app_will_enter_background
| app_did_enter_background | app_will_enter_foreground | app_did_enter_foreground
| window | syswm
| key_down | key_up | text_editing | text_input | keymap_changed
| mouse_motion | mouse_down | mouse_up | mouse_wheel
| joy_axis_motion | joy_ball_motion | joy_hat_motion
| joy_button_down | joy_button_up | joy_device_added | joy_device_removed
| controller_axis_motion | controller_button_down | controller_button_up
| controller_device_added | controller_device_removed | controller_device_remapped
| finger_down | finger_up | finger_motion
| dollar_gesture | dollar_record | multi_gesture
| clipboard_update
| drop_file | drop_text | drop_begin | drop_complete
| audio_device_added | audio_device_removed
| render_targets_reset | render_device_reset
| last.
-type window_event() :: #{type=>window, timestamp=>non_neg_integer(),
window_id=>non_neg_integer(), event=>sdl_window:window_event_type(),
data1=>integer(), data2=>integer()}.
-type keyboard_event() :: #{type=>key_down | key_up, timestamp=>non_neg_integer(),
window_id=>non_neg_integer(), state=>released | pressed, repeat=>boolean(),
scancode=>non_neg_integer(), sym=>non_neg_integer(), mod=>[sdl_keycode:keymod()]}.
-type mouse_motion_event() :: #{type=>mouse_motion, timestamp=>non_neg_integer(),
window_id=>non_neg_integer(), which=>touch | non_neg_integer(),
x=>integer(), y=>integer(), xrel=>integer(), yrel=>integer()}.
-type mouse_button_event() :: #{type=>mouse_down | mouse_up, timestamp=>non_neg_integer(),
window_id=>non_neg_integer(), which=>touch | non_neg_integer(),
button=>sdl_mouse:button(), state=>released | pressed,
clicks=>non_neg_integer(), x=>integer(), y=>integer()}.
-type mouse_wheel_event() :: #{type=>mouse_wheel, timestamp=>non_neg_integer(),
window_id=>non_neg_integer(), which=>touch | non_neg_integer(),
x=>integer(), y=>integer(), direction=>sdl_mouse:wheel_direction()}.
-type generic_event() :: #{
type=> quit | app_terminating | app_low_memory | app_will_enter_background
| app_did_enter_background | app_will_enter_foreground | app_did_enter_foreground
| keymap_changed | clipboard_update | render_targets_reset | render_device_reset,
timestamp=>non_neg_integer()}.
-type event() :: window_event() | keyboard_event()
| mouse_motion_event() | mouse_button_event() | mouse_wheel_event()
| generic_event().
-spec flush(event_type()) -> ok.
flush(Type) ->
esdl2:flush_event(Type).
-spec flush(event_type(), event_type()) -> ok.
flush(MinType, MaxType) ->
esdl2:flush_events(MinType, MaxType).
-spec get(non_neg_integer(), event_type(), event_type())
-> {ok, [event()]} | sdl:error().
get(NumEvents, MinType, MaxType) ->
esdl2:peep_events(get, NumEvents, MinType, MaxType),
receive {'_nif_thread_ret_', Ret} -> Ret end.
-spec has(event_type()) -> boolean().
has(Type) ->
esdl2:has_event(Type),
receive {'_nif_thread_ret_', Ret} -> Ret end.
-spec has(event_type(), event_type()) -> boolean().
has(MinType, MaxType) ->
esdl2:has_events(MinType, MaxType),
receive {'_nif_thread_ret_', Ret} -> Ret end.
-spec peek(non_neg_integer(), event_type(), event_type())
-> {ok, [event()]} | sdl:error().
peek(NumEvents, MinType, MaxType) ->
esdl2:peep_events(peek, NumEvents, MinType, MaxType),
receive {'_nif_thread_ret_', Ret} -> Ret end.
-spec poll() -> event() | false.
poll() ->
esdl2:poll_event(),
receive {'_nif_thread_ret_', Ret} -> Ret end.
-spec pump() -> ok.
pump() ->
esdl2:pump_events().
|
