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/* 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.
*
*/
#if !defined(BACKEND_EVENTS_SDL_WEBOS_H) && !defined(DISABLE_DEFAULT_EVENTMANAGER)
#define BACKEND_EVENTS_SDL_WEBOS_H
#include "backends/events/sdl/sdl-events.h"
/**
* SDL events manager for WebOS
*/
class WebOSSdlEventSource : public SdlEventSource {
public:
enum {
DOUBLETAP_LIMIT = 400,
MAX_FINGERS = 3,
MOUSE_DEADZONE_PIXELS = 5,
QUEUED_DRAG_DELAY = 500,
QUEUED_KEY_DELAY = 250,
QUEUED_RUP_DELAY = 50,
SWIPE_PERCENT_HORIZ = 15,
SWIPE_PERCENT_VERT = 20
};
WebOSSdlEventSource() :
_gestureDown(false),
_dragStartTime(0), _dragging(false),
_curX(0), _curY(0),
_screenX(0), _screenY(0),
_trackpadMode(false), _autoDragMode(true),
_doClick(true),
_queuedDragTime(0), _queuedEscapeUpTime(0), _queuedSpaceUpTime(0),
_queuedRUpTime(0),
_firstPoll(true) {
for (int i = 0; i < MAX_FINGERS; i++) {
_fingerDown[i] = false;
_screenDownTime[i] = _dragDiffX[i] = _dragDiffY[i] = 0;
}
};
protected:
// Inidicates if gesture area is pressed down or not.
bool _gestureDown;
// The timestamp when screen was pressed down for each finger.
uint32 _screenDownTime[MAX_FINGERS];
// The timestamp when a possible drag operation was triggered.
uint32 _dragStartTime;
// The distance each finger traveled from touch to release.
int _dragDiffX[MAX_FINGERS], _dragDiffY[MAX_FINGERS];
// Indicates if we are in drag mode.
bool _dragging;
// The current mouse position on the screen.
int _curX, _curY;
// The current screen dimensions
int _screenX, _screenY;
// The drag distance for linear gestures
int _swipeDistX, _swipeDistY;
// Indicates if we're in trackpad mode or tap-to-move mode.
bool _trackpadMode;
// Indicates if we're in automatic drag mode.
bool _autoDragMode;
// Tracks which fingers are currently touching the screen.
bool _fingerDown[MAX_FINGERS];
// Indicates if a click should be executed when the first finger is lifted
bool _doClick;
// Indicates whether the event poll has been run before
bool _firstPoll;
// Event queues
uint32 _queuedDragTime, _queuedEscapeUpTime, _queuedSpaceUpTime,
_queuedRUpTime;
// SDL overrides
virtual void SDLModToOSystemKeyFlags(SDLMod mod, Common::Event &event);
virtual bool handleKeyDown(SDL_Event &ev, Common::Event &event);
virtual bool handleKeyUp(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 handleMouseMotion(SDL_Event &ev, Common::Event &event);
virtual bool pollEvent(Common::Event &event);
// Utility functions
void calculateDimensions();
};
#endif
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