85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
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/* ScummVM - Scumm Interpreter
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* Copyright (C) 2002-2007 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#ifndef COMMON_EVENTS_H
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#define COMMON_EVENTS_H
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#include "common/rect.h"
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#include "common/system.h"
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namespace Common {
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/**
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* The EventManager provides user input events to the client code.
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* In addition, it keeps track of the state of various input devices,
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* like keys, mouse position and buttons.
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*/
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class EventManager {
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public:
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EventManager() {}
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virtual ~EventManager() {}
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enum {
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LBUTTON = 1 << 0,
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RBUTTON = 1 << 1
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};
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/**
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* Get the next event in the event queue.
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* @param event point to an Event struct, which will be filled with the event data.
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* @return true if an event was retrieved.
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*/
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virtual bool pollEvent(OSystem::Event &event) = 0;
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/** Return the current key state */
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virtual Common::Point getMousePos() const = 0;
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/**
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* Return a bitmask with the button states:
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* - bit 0: left button up=1, down=0
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* - bit 1: right button up=1, down=0
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*/
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virtual int getButtonState() const = 0;
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/** Get a bitmask with the current modifier state */
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virtual int getModifierState() const = 0;
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/**
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* Should the application terminate? Set to true if we
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* received an EVENT_QUIT.
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*/
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virtual int shouldQuit() const = 0;
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// Optional: check whether a given key is currently pressed ????
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//virtual bool isKeyPressed(int keycode) = 0;
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// TODO: Keyboard repeat support?
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// TODO: Consider removing OSystem::getScreenChangeID and
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// replacing it by a generic getScreenChangeID method here
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};
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}
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#endif
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