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
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 * modification, are permitted provided         _Q-5'5W..j/?'   -?!\)cam'
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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 "mouseinput.h"

#include <SDL_events.h>

#include "gui/base/input.hpp"
#include "gui/base/mouseinput.hpp"

#include <queue>

namespace Key
{
    enum
    {
        SPACE              = ' ',
        TAB                = '\t',
        ENTER              = '\n',
        // Negative values, to avoid conflicts with higher character codes.
        LEFT_ALT           = -1000,
        RIGHT_ALT,
        LEFT_SHIFT,
        RIGHT_SHIFT,
        LEFT_CONTROL,
        RIGHT_CONTROL,
        LEFT_META,
        RIGHT_META,
        LEFT_SUPER,
        RIGHT_SUPER,
        INSERT,
        HOME,
        PAGE_UP,
        DELETE_,
        END,
        PAGE_DOWN,
        ESCAPE,
        CAPS_LOCK,
        BACKSPACE,
        F1,
        F2,
        F3,
        F4,
        F5,
        F6,
        F7,
        F8,
        F9,
        F10,
        F11,
        F12,
        F13,
        F14,
        F15,
        PRINT_SCREEN,
        SCROLL_LOCK,
        PAUSE,
        NUM_LOCK,
        ALT_GR,
        LEFT,
        RIGHT,
        UP,
        DOWN,
        TEXTINPUT
    };
}  // namespace Key

/**
 * SDL implementation of Input.
 */
class SDLInput final : public gcn::Input
{
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() override final
    { }

    KeyInput dequeueKeyInput2() A_WARN_UNUSED;

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

    // Inherited from Input

    bool isKeyQueueEmpty() override final A_WARN_UNUSED;

    bool isMouseQueueEmpty() override final A_WARN_UNUSED;

    gcn::MouseInput dequeueMouseInput() override final 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