317 lines
7.4 KiB
C++
317 lines
7.4 KiB
C++
/*
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* This file is part of the DXX-Rebirth project <https://www.dxx-rebirth.com/>.
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* It is copyright by its individual contributors, as recorded in the
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* project's Git history. See COPYING.txt at the top level for license
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* terms and a link to the Git history.
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*/
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/*
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*
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* SDL Event related stuff
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*
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*
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*/
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#include <SDL.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "event.h"
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#include "key.h"
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#include "mouse.h"
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#include "window.h"
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#include "timer.h"
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#include "cmd.h"
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#include "config.h"
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#include "inferno.h"
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#include "joy.h"
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#include "args.h"
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#include "partial_range.h"
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namespace dcx {
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namespace {
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struct event_poll_state
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{
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uint8_t clean_uniframe = 1;
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const window *const front_window = window_get_front();
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window_event_result highest_result = window_event_result::ignored;
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void process_event_batch(partial_range_t<const SDL_Event *>);
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};
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}
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#if SDL_MAJOR_VERSION == 2
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extern SDL_Window *g_pRebirthSDLMainWindow;
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static void windowevent_handler(const SDL_WindowEvent &windowevent)
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{
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switch (windowevent.event)
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{
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case SDL_WINDOWEVENT_SIZE_CHANGED:
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{
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const d_window_size_event e{windowevent.data1, windowevent.data2};
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event_send(e);
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break;
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}
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}
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}
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#endif
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namespace {
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static void event_notify_begin_loop()
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{
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const d_event_begin_loop event;
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event_send(event);
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}
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static void event_notify_end_loop()
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{
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event_send(d_event_end_loop{});
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}
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}
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window_event_result event_poll()
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{
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event_poll_state state;
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event_notify_begin_loop();
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for (;;)
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{
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// If the front window changes, exit this loop, otherwise unintended behavior can occur
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// like pressing 'Return' really fast at 'Difficulty Level' causing multiple games to be started
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if (state.front_window != window_get_front())
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break;
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std::array<SDL_Event, 128> events;
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SDL_PumpEvents();
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#if SDL_MAJOR_VERSION == 1
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const auto peep = SDL_PeepEvents(events.data(), events.size(), SDL_GETEVENT, SDL_ALLEVENTS);
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#elif SDL_MAJOR_VERSION == 2
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const auto peep = SDL_PeepEvents(events.data(), events.size(), SDL_GETEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT);
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#endif
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if (peep <= 0)
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break;
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state.process_event_batch(unchecked_partial_range(events, static_cast<unsigned>(peep)));
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if (state.highest_result == window_event_result::deleted)
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break;
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}
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// Send the idle event if there were no other events (or they were ignored)
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if (state.highest_result == window_event_result::ignored)
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{
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const d_event ievent{EVENT_IDLE};
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state.highest_result = std::max(event_send(ievent), state.highest_result);
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}
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else
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{
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#if DXX_USE_EDITOR
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event_reset_idle_seconds();
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#endif
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}
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mouse_cursor_autohide();
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event_notify_end_loop();
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return state.highest_result;
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}
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void event_poll_state::process_event_batch(partial_range_t<const SDL_Event *> events)
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{
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for (auto &&event : events)
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{
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window_event_result result;
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switch(event.type) {
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#if SDL_MAJOR_VERSION == 2
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case SDL_WINDOWEVENT:
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windowevent_handler(event.window);
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continue;
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#endif
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case SDL_KEYDOWN:
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case SDL_KEYUP:
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if (clean_uniframe)
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{
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clean_uniframe=0;
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unicode_frame_buffer = {};
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}
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result = key_handler(&event.key);
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break;
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case SDL_MOUSEBUTTONDOWN:
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case SDL_MOUSEBUTTONUP:
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if (CGameArg.CtlNoMouse)
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continue;
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result = mouse_button_handler(&event.button);
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break;
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case SDL_MOUSEMOTION:
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if (CGameArg.CtlNoMouse)
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continue;
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result = mouse_motion_handler(&event.motion);
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break;
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case SDL_JOYBUTTONDOWN:
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case SDL_JOYBUTTONUP:
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if (CGameArg.CtlNoJoystick)
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continue;
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result = joy_button_handler(&event.jbutton);
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break;
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case SDL_JOYAXISMOTION:
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if (CGameArg.CtlNoJoystick)
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continue;
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#if DXX_MAX_BUTTONS_PER_JOYSTICK || DXX_MAX_HATS_PER_JOYSTICK
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highest_result = std::max(joy_axisbutton_handler(&event.jaxis), highest_result);
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#endif
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result = joy_axis_handler(&event.jaxis);
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break;
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case SDL_JOYHATMOTION:
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if (CGameArg.CtlNoJoystick)
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continue;
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result = joy_hat_handler(&event.jhat);
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break;
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case SDL_JOYBALLMOTION:
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continue;
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case SDL_QUIT: {
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d_event qevent = { EVENT_QUIT };
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result = call_default_handler(qevent);
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break;
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}
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default:
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continue;
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}
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highest_result = std::max(result, highest_result);
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}
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}
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void event_flush()
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{
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std::array<SDL_Event, 128> events;
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for (;;)
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{
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SDL_PumpEvents();
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#if SDL_MAJOR_VERSION == 1
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const auto peep = SDL_PeepEvents(events.data(), events.size(), SDL_GETEVENT, SDL_ALLEVENTS);
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#elif SDL_MAJOR_VERSION == 2
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const auto peep = SDL_PeepEvents(events.data(), events.size(), SDL_GETEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT);
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#endif
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if (peep != events.size())
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break;
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}
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}
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window_event_result call_default_handler(const d_event &event)
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{
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return standard_handler(event);
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}
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window_event_result event_send(const d_event &event)
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{
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window *wind;
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window_event_result handled = window_event_result::ignored;
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for (wind = window_get_front(); wind && handled == window_event_result::ignored; wind = window_get_prev(*wind))
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if (wind->is_visible())
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{
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handled = window_send_event(*wind, event);
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if (handled == window_event_result::deleted) // break away if necessary: window_send_event() could have closed wind by now
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break;
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if (wind->is_modal())
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break;
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}
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if (handled == window_event_result::ignored)
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return call_default_handler(event);
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return handled;
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}
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// Process the first event in queue, sending to the appropriate handler
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// This is the new object-oriented system
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// Uses the old system for now, but this may change
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window_event_result event_process(void)
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{
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window *wind = window_get_front();
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window_event_result highest_result;
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timer_update();
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highest_result = event_poll(); // send input events first
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cmd_queue_process();
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// Doing this prevents problems when a draw event can create a newmenu,
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// such as some network menus when they report a problem
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// Also checking for window_event_result::deleted in case a window was created
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// with the same pointer value as the deleted one
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if ((highest_result == window_event_result::deleted) || (window_get_front() != wind))
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return highest_result;
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const d_event event{EVENT_WINDOW_DRAW}; // then draw all visible windows
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for (wind = window_get_first(); wind != nullptr;)
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{
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if (wind->is_visible())
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{
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auto prev = window_get_prev(*wind);
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auto result = window_send_event(*wind, event);
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highest_result = std::max(result, highest_result);
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if (result == window_event_result::deleted)
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{
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if (!prev)
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{
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wind = window_get_first();
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continue;
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}
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wind = prev; // take the previous window and get the next one from that (if prev isn't nullptr)
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}
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}
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wind = window_get_next(*wind);
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}
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gr_flip();
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return highest_result;
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}
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namespace {
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template <bool activate_focus>
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static void event_change_focus()
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{
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const auto enable_grab = activate_focus && CGameCfg.Grabinput && likely(!CGameArg.DbgForbidConsoleGrab);
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#if SDL_MAJOR_VERSION == 1
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SDL_WM_GrabInput(enable_grab ? SDL_GRAB_ON : SDL_GRAB_OFF);
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#elif SDL_MAJOR_VERSION == 2
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SDL_SetWindowGrab(g_pRebirthSDLMainWindow, enable_grab ? SDL_TRUE : SDL_FALSE);
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SDL_SetRelativeMouseMode(enable_grab ? SDL_TRUE : SDL_FALSE);
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#endif
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if (activate_focus)
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mouse_disable_cursor();
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else
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mouse_enable_cursor();
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}
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}
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void event_enable_focus()
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{
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event_change_focus<true>();
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}
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void event_disable_focus()
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{
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event_change_focus<false>();
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}
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#if DXX_USE_EDITOR
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static fix64 last_event = 0;
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void event_reset_idle_seconds()
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{
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last_event = timer_query();
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}
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fix event_get_idle_seconds()
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{
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return (timer_query() - last_event)/F1_0;
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}
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#endif
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}
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