Duncan McIntyre / SimpleGUITouchScreen

Implements SimpleGUI events from a TouchScreen

Dependents:   TouchScreenGUIDemo

TouchScreenEventSource.h@0:b250e56f3514, 2016-03-25 (annotated)

Committer:
duncanFrance
Date:
Fri Mar 25 13:48:33 2016 +0000
Revision:
0:b250e56f3514
Child:
1:6fb3545bddf7
Initial import

Who changed what in which revision?

UserRevisionLine numberNew contents of line
duncanFrance 0:b250e56f3514 1 #ifndef SIMPLEGUI_TOUCH_SCREEN_TOUCH_SCREEN_EVENT_SOURCE_H
duncanFrance 0:b250e56f3514 2 #define SIMPLEGUI_TOUCH_SCREEN_TOUCH_SCREEN_EVENT_SOURCE_H
duncanFrance 0:b250e56f3514 3
duncanFrance 0:b250e56f3514 4 #include "TouchScreen.h"
duncanFrance 0:b250e56f3514 5 #include "EventSource.h"
duncanFrance 0:b250e56f3514 6 #include "TouchEvents.h"
duncanFrance 0:b250e56f3514 7
duncanFrance 0:b250e56f3514 8 /**
duncanFrance 0:b250e56f3514 9 * If the time between a touchStart and touchEnd is less than this value, issue a tap event
duncanFrance 0:b250e56f3514 10 **/
duncanFrance 0:b250e56f3514 11 #define TAP_TIMEOUT_MICROS 100000
duncanFrance 0:b250e56f3514 12 /**
duncanFrance 0:b250e56f3514 13 * If two taps in succession were detected within this time, issue a double-tap event
duncanFrance 0:b250e56f3514 14 **/
duncanFrance 0:b250e56f3514 15 #define DOUBLE_TAP_TIMEOUT_MICROS 200000
duncanFrance 0:b250e56f3514 16
duncanFrance 0:b250e56f3514 17 // This class takes raw touch screen eents and turns them into events suitable for dispatch
duncanFrance 0:b250e56f3514 18 // by the SimpleGUI EventDispatcher
duncanFrance 0:b250e56f3514 19
duncanFrance 0:b250e56f3514 20 class TouchScreenEventSource : public EventSource {
duncanFrance 0:b250e56f3514 21
duncanFrance 0:b250e56f3514 22 public:
duncanFrance 0:b250e56f3514 23 TouchScreenEventSource();
duncanFrance 0:b250e56f3514 24
duncanFrance 0:b250e56f3514 25 virtual setDispatcher(EventDispatcher* dispatcher);
duncanFrance 0:b250e56f3514 26
duncanFrance 0:b250e56f3514 27 void touchStartHandler(TouchPosition p);
duncanFrance 0:b250e56f3514 28 void touchMoveHandler(TouchPosition p);
duncanFrance 0:b250e56f3514 29 void touchEndHandler(TouchPosition p);
duncanFrance 0:b250e56f3514 30
duncanFrance 0:b250e56f3514 31 private:
duncanFrance 0:b250e56f3514 32 enum State {
duncanFrance 0:b250e56f3514 33 Idle,
duncanFrance 0:b250e56f3514 34 SingleTimer,
duncanFrance 0:b250e56f3514 35 DoubleTimer
duncanFrance 0:b250e56f3514 36 };
duncanFrance 0:b250e56f3514 37
duncanFrance 0:b250e56f3514 38 State _state;
duncanFrance 0:b250e56f3514 39 Timeout _timeout;
duncanFrance 0:b250e56f3514 40 EventDispatcher* _dispatcher;
duncanFrance 0:b250e56f3514 41 uint8_t _state;
duncanFrance 0:b250e56f3514 42
duncanFrance 0:b250e56f3514 43 };
duncanFrance 0:b250e56f3514 44
duncanFrance 0:b250e56f3514 45 #endif