Duncan McIntyre / SimpleGUITouchScreen

Implements SimpleGUI events from a TouchScreen

Dependents:   TouchScreenGUIDemo

TouchScreenEventSource.h@5:e3084e17e8e6, 2016-05-28 (annotated)

Committer:
duncanFrance
Date:
Sat May 28 14:50:49 2016 +0000
Revision:
5:e3084e17e8e6
Parent:
4:0be0d6a61e90 
Removed dependency on GUI

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 1:6fb3545bddf7 4 #include "SimpleGUI.h"
duncanFrance 0:b250e56f3514 5 #include "TouchScreen.h"
duncanFrance 0:b250e56f3514 6
duncanFrance 0:b250e56f3514 7 /**
duncanFrance 0:b250e56f3514 8 * If the time between a touchStart and touchEnd is less than this value, issue a tap event
duncanFrance 0:b250e56f3514 9 **/
duncanFrance 2:0c8196ec23e4 10 #define TAP_TIMEOUT_MICROS 150000
duncanFrance 0:b250e56f3514 11 /**
duncanFrance 0:b250e56f3514 12 * If two taps in succession were detected within this time, issue a double-tap event
duncanFrance 0:b250e56f3514 13 **/
duncanFrance 2:0c8196ec23e4 14 #define DOUBLE_TAP_TIMEOUT_MICROS 250000
duncanFrance 0:b250e56f3514 15
duncanFrance 0:b250e56f3514 16 // This class takes raw touch screen eents and turns them into events suitable for dispatch
duncanFrance 0:b250e56f3514 17 // by the SimpleGUI EventDispatcher
duncanFrance 0:b250e56f3514 18
duncanFrance 1:6fb3545bddf7 19 class TouchScreenEventSource : public EventSource
duncanFrance 1:6fb3545bddf7 20 {
duncanFrance 1:6fb3545bddf7 21
duncanFrance 1:6fb3545bddf7 22 public:
duncanFrance 5:e3084e17e8e6 23 TouchScreenEventSource(TouchScreen* touchScreen, EventDispatcher* dispatcher);
duncanFrance 1:6fb3545bddf7 24
duncanFrance 1:6fb3545bddf7 25 void touchStartHandler(TouchPosition p);
duncanFrance 1:6fb3545bddf7 26 void touchMoveHandler(TouchPosition p);
duncanFrance 1:6fb3545bddf7 27 void touchEndHandler(TouchPosition p);
duncanFrance 1:6fb3545bddf7 28
duncanFrance 1:6fb3545bddf7 29 private:
duncanFrance 1:6fb3545bddf7 30 TouchScreen* _touchScreen;
duncanFrance 0:b250e56f3514 31 Timeout _timeout;
duncanFrance 1:6fb3545bddf7 32
duncanFrance 1:6fb3545bddf7 33 enum State {
duncanFrance 1:6fb3545bddf7 34 Idle,
duncanFrance 1:6fb3545bddf7 35 SingleTimer,
duncanFrance 1:6fb3545bddf7 36 DoubleTimer
duncanFrance 1:6fb3545bddf7 37 };
duncanFrance 1:6fb3545bddf7 38
duncanFrance 1:6fb3545bddf7 39 volatile State _state;
duncanFrance 1:6fb3545bddf7 40
duncanFrance 1:6fb3545bddf7 41 void _timeoutHandler();
duncanFrance 0:b250e56f3514 42 };
duncanFrance 0:b250e56f3514 43
duncanFrance 0:b250e56f3514 44 #endif