path: root/src/gui/sdlinput.h

/*
 *  The ManaPlus Client
 *  Copyright (C) 2011-2014  The ManaPlus Developers
 *
 *  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/>.
 */

/*      _______   __   __   __   ______   __   __   _______   __   __
 *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
 *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
 *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /
 *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /
 * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
 * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
 *
 * 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 ` _: :+' .'  "{[
 *                                               .)j(] .d_/ '-(  P .   S
 * License: (BSD)                                <Td/Z <fP"5(\"??"\a.  .L
 * Redistribution and use in source and          _dV>ws?a-?'      ._/L  #'
 * binary forms, with or without                 )4d[#7r, .   '     )d`)[
 * modification, are permitted provided         _Q-5'5W..j/?'   -?!\)cam'
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 * 1. Redistributions of source code must       .$%w\/]Q  . ."'  .  mj$
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 *    this list of conditions and the           j(]1u<sE"L,. .   ./^ ]{a
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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 */

#ifndef GUI_SDLINPUT_H
#define GUI_SDLINPUT_H

#include "input/keyinput.h"

#include <SDL_events.h>

#include "input/mouseinput.h"

#include <queue>

/**
 * SDL implementation of SDLInput.
 */
class SDLInput final
{
public:
    /**
     * Constructor.
     */
    SDLInput();

    A_DELETE_COPY(SDLInput)

    /**
     * Pushes an SDL event. It should be called at least once per frame to
     * update input with user input.
     *
     * @param event an event from SDL.
     */
    void pushInput(const SDL_Event &event);

    /**
     * Polls all input. It exists for input driver compatibility. If you
     * only use SDL and plan sticking with SDL you can safely ignore this
     * function as it in the SDL case does nothing.
     */
    void _pollInput()
    { }

    KeyInput dequeueKeyInput2() A_WARN_UNUSED;

    KeyInput dequeueKeyInput() A_WARN_UNUSED
    { return KeyInput(); }

    // Inherited from SDLInput

    bool isKeyQueueEmpty() A_WARN_UNUSED;

    bool isMouseQueueEmpty() A_WARN_UNUSED;

    MouseInput dequeueMouseInput() A_WARN_UNUSED;

    MouseInput dequeueMouseInput2() A_WARN_UNUSED;

    void simulateMouseClick(const int x, const int y,
                            const unsigned int button);

protected:
    /**
     * Converts a mouse button from SDL to a Guichan mouse button
     * representation.
     *
     * @param button an SDL mouse button.
     * @return a Guichan mouse button.
     */
    static int convertMouseButton(const int button) A_WARN_UNUSED;

    /**
     * Converts an SDL event key to a key value.
     *
     * @param event an SDL event with a key to convert.
     * @return a key value.
     * @see Key
     */
    static int convertKeyCharacter(const SDL_Event &event) A_WARN_UNUSED;

    static void convertKeyEventToKey(const SDL_Event &event,
                                     KeyInput &keyInput);

    std::queue<KeyInput> mKeyInputQueue;
    std::queue<MouseInput> mMouseInputQueue;

    bool mMouseDown;
    bool mMouseInWindow;
};

#endif  // GUI_SDLINPUT_H