key_handler_controller.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 3 of the License, or
 * (at your option) 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/>.
 *
 */

#ifndef ULTIMA4_CONTROLLERS_KEY_HANDLER_CONTROLLER_H
#define ULTIMA4_CONTROLLERS_KEY_HANDLER_CONTROLLER_H

#include "ultima/ultima4/controllers/controller.h"

namespace Ultima {
namespace Ultima4 {

class KeyHandler {
public:
    virtual ~KeyHandler() {}

    /* Typedefs */
    typedef bool (*Callback)(int, void *);

    typedef struct ReadBuffer {
        int (*_handleBuffer)(Common::String *);
        Common::String *_buffer;
        int _bufferLen;
        int _screenX, _screenY;
    } ReadBuffer;

    typedef struct GetChoice {
        Common::String _choices;
        int (*_handleChoice)(int);
    } GetChoice;

    /* Constructors */
    KeyHandler(Callback func, void *data = nullptr, bool asyncronous = true);

    static bool globalHandler(int key);

    /* Static default key handler functions */
    static bool defaultHandler(int key, void *data);

    static bool ignoreKeys(int key, void *data);

    /* Operators */
    bool operator==(Callback cb) const;

    /* Member functions */
    bool handle(int key);

    virtual bool isKeyIgnored(int key);

protected:
    Callback _handler;
    bool _async;
    void *_data;
};

class KeyHandlerController : public Controller {
public:
    KeyHandlerController(KeyHandler *handler);
    ~KeyHandlerController();

    bool keyPressed(int key) override;
    KeyHandler *getKeyHandler();

private:
    KeyHandler *_handler;
};

} // End of namespace Ultima4
} // End of namespace Ultima

#endif