sdlinput.h

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/*
 *  The ManaPlus Client
 *  Copyright (C) 2011-2019  The ManaPlus Developers
 *  Copyright (C) 2019-2021  Andrei Karas
 *
 *  This file is part of The ManaPlus Client.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
/*      _______   __   __   __   ______   __   __   _______   __   __
 *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
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 * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
 *
 * Copyright (c) 2004, 2005, 2006, 2007 Olof Naessén and Per Larsson
 * Copyright (C) 2007-2010  The Mana World Development Team
 *
 *                                                         Js_./
 * Per Larsson a.k.a finalman                          _RqZ{a<^_aa
 * Olof Naessén a.k.a jansem/yakslem                _asww7!uY`>  )\a//
 *                                                 _Qhm`] _f "'c  1!5m
 * Visit: http://guichan.darkbits.org             )Qk<P ` _: :+' .'  "{[
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 */
 
#ifndef GUI_SDLINPUT_H
#define GUI_SDLINPUT_H
 
#include "enums/input/keyvalue.h"
 
#include "input/keyinput.h"
 
#include "utils/cast.h"
 
PRAGMA48(GCC diagnostic push)
PRAGMA48(GCC diagnostic ignored "-Wshadow")
#include <SDL_events.h>
PRAGMA48(GCC diagnostic pop)
 
#ifdef USE_SDL2
#include "sdlshared.h"
#endif  // USE_SDL2
 
#include "input/mouseinput.h"
 
#include <queue>
 
class SDLInput final
{
    public:
        SDLInput();
 
        A_DELETE_COPY(SDLInput)
 
        
        void pushInput(const SDL_Event &event);
 
        KeyInput dequeueKeyInput() A_WARN_UNUSED;
 
        bool isKeyQueueEmpty() const noexcept2 A_WARN_UNUSED
        { return mKeyInputQueue.empty(); }
 
        bool isMouseQueueEmpty() const noexcept2 A_WARN_UNUSED
        { return mMouseInputQueue.empty(); }
 
        MouseInput dequeueMouseInput() A_WARN_UNUSED;
 
        void simulateMouseClick(const int x, const int y,
                                const MouseButtonT button);
 
        void simulateMouseMove();
 
        void simulateKey(const int guiKey,
                         const InputActionT actionId);
 
    protected:
        static MouseButtonT convertMouseButton(const int button) A_WARN_UNUSED;
 
        constexpr2 static int convertKeyCharacter(const SDL_Event &event)
                                                 A_WARN_UNUSED
        {
            const SDL_keysym keysym = event.key.keysym;
#ifdef USE_SDL2
            int value = keysym.scancode;
#else  // USE_SDL2
 
            int value = keysym.unicode;
#endif  // USE_SDL2
 
            PRAGMA45(GCC diagnostic push)
            PRAGMA45(GCC diagnostic ignored "-Wswitch-enum")
            switch (keysym.sym)
            {
              case SDLK_TAB:
                  value = KeyValue::TAB;
                  break;
              case SDLK_LALT:
                  value = KeyValue::LEFT_ALT;
                  break;
              case SDLK_RALT:
                  value = KeyValue::RIGHT_ALT;
                  break;
              case SDLK_LSHIFT:
                  value = KeyValue::LEFT_SHIFT;
                  break;
              case SDLK_RSHIFT:
                  value = KeyValue::RIGHT_SHIFT;
                  break;
              case SDLK_LCTRL:
                  value = KeyValue::LEFT_CONTROL;
                  break;
              case SDLK_RCTRL:
                  value = KeyValue::RIGHT_CONTROL;
                  break;
              case SDLK_BACKSPACE:
                  value = KeyValue::BACKSPACE;
                  break;
              case SDLK_PAUSE:
                  value = KeyValue::PAUSE;
                  break;
              case SDLK_SPACE:
                  // Special characters like ~ (tilde) ends up
                  // with the keysym.sym SDLK_SPACE which
                  // without this check would be lost. The check
                  // is only valid on key down events in SDL.
#ifndef USE_SDL2
                  if (event.type == SDL_KEYUP ||
                      keysym.unicode == ' ')
#endif  // USE_SDL2
                  {
                      value = KeyValue::SPACE;
                  }
                  break;
              case SDLK_ESCAPE:
#ifdef USE_SDL2
              case SDLK_AC_BACK:
#endif  // USE_SDL2
                  value = KeyValue::ESCAPE;
                  break;
              case SDLK_DELETE:
                  value = KeyValue::DELETE_;
                  break;
              case SDLK_INSERT:
                  value = KeyValue::INSERT;
                  break;
              case SDLK_HOME:
                  value = KeyValue::HOME;
                  break;
              case SDLK_END:
                  value = KeyValue::END;
                  break;
              case SDLK_PAGEUP:
                  value = KeyValue::PAGE_UP;
                  break;
              case SDLK_PRINT:
                  value = KeyValue::PRINT_SCREEN;
                  break;
              case SDLK_PAGEDOWN:
                  value = KeyValue::PAGE_DOWN;
                  break;
              case SDLK_F1:
                  value = KeyValue::F1;
                  break;
              case SDLK_F2:
                  value = KeyValue::F2;
                  break;
              case SDLK_F3:
                  value = KeyValue::F3;
                  break;
              case SDLK_F4:
                  value = KeyValue::F4;
                  break;
              case SDLK_F5:
                  value = KeyValue::F5;
                  break;
              case SDLK_F6:
                  value = KeyValue::F6;
                  break;
              case SDLK_F7:
                  value = KeyValue::F7;
                  break;
              case SDLK_F8:
                  value = KeyValue::F8;
                  break;
              case SDLK_F9:
                  value = KeyValue::F9;
                  break;
              case SDLK_F10:
                  value = KeyValue::F10;
                  break;
              case SDLK_F11:
                  value = KeyValue::F11;
                  break;
              case SDLK_F12:
                  value = KeyValue::F12;
                  break;
              case SDLK_F13:
                  value = KeyValue::F13;
                  break;
              case SDLK_F14:
                  value = KeyValue::F14;
                  break;
              case SDLK_F15:
                  value = KeyValue::F15;
                  break;
              case SDLK_NUMLOCK:
                  value = KeyValue::NUM_LOCK;
                  break;
              case SDLK_CAPSLOCK:
                  value = KeyValue::CAPS_LOCK;
                  break;
              case SDLK_SCROLLOCK:
                  value = KeyValue::SCROLL_LOCK;
                  break;
              case SDLK_RMETA:
                  value = KeyValue::RIGHT_META;
                  break;
              case SDLK_LMETA:
                  value = KeyValue::LEFT_META;
                  break;
#ifndef USE_SDL2
              case SDLK_LSUPER:
                  value = KeyValue::LEFT_SUPER;
                  break;
              case SDLK_RSUPER:
                  value = KeyValue::RIGHT_SUPER;
                  break;
#endif  // USE_SDL2
 
              case SDLK_MODE:
                  value = KeyValue::ALT_GR;
                  break;
              case SDLK_UP:
                  value = KeyValue::UP;
                  break;
              case SDLK_DOWN:
                  value = KeyValue::DOWN;
                  break;
              case SDLK_LEFT:
                  value = KeyValue::LEFT;
                  break;
              case SDLK_RIGHT:
                  value = KeyValue::RIGHT;
                  break;
              case SDLK_RETURN:
              case SDLK_KP_ENTER:
                  value = KeyValue::ENTER;
                  break;
 
              default:
                  break;
            }
            PRAGMA45(GCC diagnostic pop)
 
            if ((CAST_U32(keysym.mod) & KMOD_NUM) == 0U)
            {
                PRAGMA45(GCC diagnostic push)
                PRAGMA45(GCC diagnostic ignored "-Wswitch-enum")
                switch (keysym.sym)
                {
                  case SDLK_KP0:
                      value = KeyValue::INSERT;
                      break;
                  case SDLK_KP1:
                      value = KeyValue::END;
                      break;
                  case SDLK_KP2:
                      value = KeyValue::DOWN;
                      break;
                  case SDLK_KP3:
                      value = KeyValue::PAGE_DOWN;
                      break;
                  case SDLK_KP4:
                      value = KeyValue::LEFT;
                      break;
                  case SDLK_KP5:
                      value = 0;
                      break;
                  case SDLK_KP6:
                      value = KeyValue::RIGHT;
                      break;
                  case SDLK_KP7:
                      value = KeyValue::HOME;
                      break;
                  case SDLK_KP8:
                      value = KeyValue::UP;
                      break;
                  case SDLK_KP9:
                      value = KeyValue::PAGE_UP;
                      break;
                  default:
                      break;
                }
                PRAGMA45(GCC diagnostic pop)
            }
            return value;
        }
 
        static void convertKeyEventToKey(const SDL_Event &event,
                                         KeyInput &keyInput);
 
        std::queue<KeyInput> mKeyInputQueue;
        std::queue<MouseInput> mMouseInputQueue;
        time_t mMouseMoveTime;
 
        bool mMouseDown;
        bool mMouseInWindow;
};
 
extern SDLInput *guiInput;                  
#endif  // GUI_SDLINPUT_H