1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
/*
* button.h
*
* Copyright (C) 2011 Tim Marston <tim@ed.am> and Dan Marston.
*
* This file is part of propeller-clock (hereafter referred to as "this
* program"). See http://ed.am/dev/software/arduino/propeller-clock for more
* information.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _BUTTON_H_
#define _BUTTON_H_
class Button
{
public:
/**
* Constructor.
*
* @param pin the pin to monitor
*/
Button( int pin );
/**
* Set event times.
*
* @oaram pointer to ordered, zero-terminated array of event times
*/
void set_event_times( int *event_times );
/**
* Set button press mode
*
* @param send_interim send interim presses during a long press?
*/
void set_press_mode( bool send_interim );
/**
* Update internal state (call as regularly sa possible!)
*/
void update();
/**
* Get the first pending event.
*
* @return event id, 0 if there isn't any
*/
int get_event();
/**
* Get the current button state.
*
* @return true if the button is pressed
*/
bool get_state();
protected:
/** pin */
int _pin;
/** last real state */
bool _last_real_state;
/** time when the real state began */
unsigned long _millis_real_state;
/** accepted state */
bool _state;
/** time when the accepted state began */
unsigned long _millis_state;
/** amount of time that we've already triggered events for this press */
unsigned long _millis_done;
/** pointer to event times */
int *_event_times;
/** pending event */
int _pending_event;
};
#endif //_BUTTON_H_
|