Duncan McIntyre / SimpleGUITouchScreen

Implements SimpleGUI events from a TouchScreen

Dependents:   TouchScreenGUIDemo

TouchScreenEventSource.h@2:0c8196ec23e4, 2016-03-27 (annotated)

Committer:
duncanFrance
Date:
Sun Mar 27 14:47:27 2016 +0000
Revision:
2:0c8196ec23e4
Parent:
1:6fb3545bddf7
Child:
3:45777fe81448
Increased tap/double-tap delays;

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 #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 2:0c8196ec23e4 11 #define TAP_TIMEOUT_MICROS 150000
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 2:0c8196ec23e4 15 #define DOUBLE_TAP_TIMEOUT_MICROS 250000
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 1:6fb3545bddf7 20 class TouchScreenEventSource : public EventSource
duncanFrance 1:6fb3545bddf7 21 {
duncanFrance 1:6fb3545bddf7 22
duncanFrance 1:6fb3545bddf7 23 public:
duncanFrance 1:6fb3545bddf7 24 TouchScreenEventSource(TouchScreen* touchScreen, EventDispatcher* dispatcher);
duncanFrance 1:6fb3545bddf7 25
duncanFrance 1:6fb3545bddf7 26 void touchStartHandler(TouchPosition p);
duncanFrance 1:6fb3545bddf7 27 void touchMoveHandler(TouchPosition p);
duncanFrance 1:6fb3545bddf7 28 void touchEndHandler(TouchPosition p);
duncanFrance 1:6fb3545bddf7 29
duncanFrance 1:6fb3545bddf7 30 private:
duncanFrance 1:6fb3545bddf7 31 TouchScreen* _touchScreen;
duncanFrance 0:b250e56f3514 32 Timeout _timeout;
duncanFrance 1:6fb3545bddf7 33
duncanFrance 1:6fb3545bddf7 34 enum State {
duncanFrance 1:6fb3545bddf7 35 Idle,
duncanFrance 1:6fb3545bddf7 36 SingleTimer,
duncanFrance 1:6fb3545bddf7 37 DoubleTimer
duncanFrance 1:6fb3545bddf7 38 };
duncanFrance 1:6fb3545bddf7 39
duncanFrance 1:6fb3545bddf7 40 volatile State _state;
duncanFrance 1:6fb3545bddf7 41
duncanFrance 1:6fb3545bddf7 42 void _timeoutHandler();
duncanFrance 0:b250e56f3514 43 };
duncanFrance 0:b250e56f3514 44
duncanFrance 0:b250e56f3514 45 #endif