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- /* Copyright 2019 Aaron Sowry for Cendio AB
- * Copyright 2020 Pierre Ossman for Cendio AB
- *
- * This 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 software 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 software; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
- */
-
- #ifndef __GESTUREHANDLER_H__
- #define __GESTUREHANDLER_H__
-
- #include <set>
- #include <map>
-
- #include <rfb/Timer.h>
-
- #include "GestureEvent.h"
-
- class GestureHandler : public rfb::Timer::Callback {
- public:
- GestureHandler();
- virtual ~GestureHandler();
-
- void handleTouchBegin(int id, double x, double y);
- void handleTouchUpdate(int id, double x, double y);
- void handleTouchEnd(int id);
-
- protected:
- virtual void handleGestureEvent(const GestureEvent& event) = 0;
-
- private:
- bool hasDetectedGesture();
-
- virtual bool handleTimeout(rfb::Timer* t);
- void longpressTimeout();
- void twoTouchTimeout();
-
- void pushEvent(GestureEventType t);
- GestureEventGesture stateToGesture(unsigned char state);
-
- void getPosition(double *firstX, double *firstY,
- double *lastX, double *lastY);
- void getAverageMovement(double *h, double *v);
- void getAverageDistance(double *firstX, double *firstY,
- double *lastX, double *lastY);
-
- private:
- struct GHTouch {
- struct timeval started;
- bool active;
- double firstX;
- double firstY;
- double lastX;
- double lastY;
- int angle;
- };
-
- unsigned char state;
-
- std::map<int, GHTouch> tracked;
- std::set<int> ignored;
-
- bool waitingRelease;
- struct timeval releaseStart;
-
- rfb::Timer longpressTimer;
- rfb::Timer twoTouchTimer;
- };
-
- #endif // __GESTUREHANDLER_H__
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