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Diffstat (limited to 'backends/events/sdl/sdl-events.h')
| -rw-r--r-- | backends/events/sdl/sdl-events.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/backends/events/sdl/sdl-events.h b/backends/events/sdl/sdl-events.h new file mode 100644 index 0000000000..4bc2277fcd --- /dev/null +++ b/backends/events/sdl/sdl-events.h @@ -0,0 +1,138 @@ +/* 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 2 + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * $URL$ + * $Id$ + * + */ + +#if !defined(BACKEND_EVENTS_SDL_H) && !defined(DISABLE_DEFAULT_EVENTMANAGER) +#define BACKEND_EVENTS_SDL_H + +#include "backends/events/default/default-events.h" + +#if defined(__SYMBIAN32__) +#include <esdl\SDL.h> +#else +#include <SDL.h> +#endif + +/** + * The SDL event manager class. + */ +class SdlEventManager : public DefaultEventManager { +public: + SdlEventManager(Common::EventSource *boss); + virtual ~SdlEventManager(); + + /** + * Gets and proccess SDL events + */ + virtual bool pollSdlEvent(Common::Event &event); + + /** + * Resets keyboard emulation after a video screen change + */ + virtual void resetKeyboadEmulation(int16 x_max, int16 y_max); + + /** + * Toggles mouse input grab + */ + virtual void toggleMouseGrab(); + +protected: + /** @name Keyboard mouse emulation + * Disabled by fingolfin 2004-12-18. + * I am keeping the rest of the code in for now, since the joystick + * code (or rather, "hack") uses it, too. + */ + //@{ + + struct KbdMouse { + int16 x, y, x_vel, y_vel, x_max, y_max, x_down_count, y_down_count; + uint32 last_time, delay_time, x_down_time, y_down_time; + }; + KbdMouse _km; + + //@} + + /** Scroll lock state - since SDL doesn't track it */ + bool _scrollLock; + + /** Joystick */ + SDL_Joystick *_joystick; + + /** Last screen id for checking if it was modified */ + int _lastScreenID; + + /** + * Pre process an event before it is dispatched. + */ + virtual void preprocessEvents(SDL_Event *event) {} + + /** + * Dispatchs SDL events for each handler. + */ + virtual bool dispatchSDLEvent(SDL_Event &ev, Common::Event &event); + + + /** @name Event Handlers + * Handlers for specific SDL events, called by SdlEventManager::dispatchSDLEvent(). + * This way, if a managers inherits fromt this SDL events manager, it can + * change the behavior of only a single event, without having to override all + * of SdlEventManager::dispatchSDLEvent(). + */ + //@{ + + virtual bool handleKeyDown(SDL_Event &ev, Common::Event &event); + virtual bool handleKeyUp(SDL_Event &ev, Common::Event &event); + virtual bool handleMouseMotion(SDL_Event &ev, Common::Event &event); + virtual bool handleMouseButtonDown(SDL_Event &ev, Common::Event &event); + virtual bool handleMouseButtonUp(SDL_Event &ev, Common::Event &event); + virtual bool handleJoyButtonDown(SDL_Event &ev, Common::Event &event); + virtual bool handleJoyButtonUp(SDL_Event &ev, Common::Event &event); + virtual bool handleJoyAxisMotion(SDL_Event &ev, Common::Event &event); + virtual void handleKbdMouse(); + + //@} + + /** + * Assigns the mouse coords to the mouse event + */ + virtual void fillMouseEvent(Common::Event &event, int x, int y); + + /** + * Remaps key events. This allows platforms to configure + * their custom keys. + */ + virtual bool remapKey(SDL_Event &ev, Common::Event &event); + + /** + * Maps the ASCII value of key + */ + virtual int mapKey(SDLKey key, SDLMod mod, Uint16 unicode); + + /** + * Configures the key modifiers flags status + */ + virtual void SDLModToOSystemKeyFlags(SDLMod mod, Common::Event &event); +}; + +#endif |