/elec/propeller-clock : revision 41

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Viewing changes to src/button.cc

Committer: edam
Date: 2012-02-02 01:19:19 UTC
Revision ID: edam@waxworlds.org-20120202011919-rcu4pt8mq8pieujs

modified schematic and updated notes

files added:
src/util/Bounce.cpp

src/util/Bounce.h

files removed:
arduino.mk

src/analogue_clock_mode.cc

src/analogue_clock_mode.h

src/button.cc

src/button.h

src/config.h

src/drawer.cc

src/drawer.h

src/major_mode.h

src/minor_mode.cc

src/minor_mode.h

src/mode_switcher.cc

src/mode_switcher.h

src/test_mode.cc

src/test_mode.h

src/time.cc

src/time.h

src/utility

src/utility/Jamfile

src/utility/Makefile

src/utility/README.md

src/utility/StandardCplusplus.h

src/utility/algorithm

src/utility/algorithm.cpp

src/utility/associative_base

src/utility/associative_base.cpp

src/utility/basic_definitions

src/utility/bitset

src/utility/bitset.cpp

src/utility/cassert

src/utility/cctype

src/utility/cerrno

src/utility/cfloat

src/utility/char_traits

src/utility/char_traits.cpp

src/utility/climits

src/utility/clocale

src/utility/cmath

src/utility/complex

src/utility/complex.cpp

src/utility/csetjmp

src/utility/csignal

src/utility/cstdarg

src/utility/cstddef

src/utility/cstdio

src/utility/cstdlib

src/utility/cstring

src/utility/ctime

src/utility/cwchar

src/utility/cwctype

src/utility/del_op.cpp

src/utility/del_opnt.cpp

src/utility/del_opv.cpp

src/utility/del_opvnt.cpp

src/utility/deque

src/utility/deque.cpp

src/utility/eh_alloc.cpp

src/utility/eh_globals.cpp

src/utility/exception

src/utility/exception.cpp

src/utility/fstream

src/utility/fstream.cpp

src/utility/func_exception

src/utility/func_exception.cpp

src/utility/functional

src/utility/iomanip

src/utility/iomanip.cpp

src/utility/ios

src/utility/ios.cpp

src/utility/iosfwd

src/utility/iostream

src/utility/iostream.cpp

src/utility/istream

src/utility/istream.cpp

src/utility/istream_helpers

src/utility/iterator

src/utility/iterator.cpp

src/utility/iterator_base

src/utility/limits

src/utility/limits.cpp

src/utility/list

src/utility/list.cpp

src/utility/locale

src/utility/locale.cpp

src/utility/map

src/utility/map.cpp

src/utility/memory

src/utility/new

src/utility/new_handler.cpp

src/utility/new_op.cpp

src/utility/new_opnt.cpp

src/utility/new_opv.cpp

src/utility/new_opvnt.cpp

src/utility/numeric

src/utility/numeric.cpp

src/utility/ostream

src/utility/ostream.cpp

src/utility/ostream_helpers

src/utility/queue

src/utility/queue.cpp

src/utility/serstream

src/utility/set

src/utility/set.cpp

src/utility/sstream

src/utility/sstream.cpp

src/utility/stack

src/utility/stack.cpp

src/utility/stdexcept

src/utility/stdexcept.cpp

src/utility/streambuf

src/utility/streambuf.cpp

src/utility/string

src/utility/string.cpp

src/utility/string_iostream

src/utility/support

src/utility/support.cpp

src/utility/system_configuration.h

src/utility/type_traits

src/utility/typeinfo

src/utility/typeinfo.cpp

src/utility/uartbuf

src/utility/unwind-cxx.h

src/utility/utility.cpp

src/utility/utility.h

src/utility/valarray

src/utility/valarray.cpp

src/utility/vector

src/utility/vector.cpp

test/fan-test/Makefile

test/phantom-button-presses

test/phantom-button-presses/Makefile

test/phantom-button-presses/main.ino

files modified:
electronics-information

project/propeller-clock.sch

src/Makefile

src/propeller-clock.ino

test/led-test/Makefile

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added added

removed removed

src/button.cc

* button.cc

* 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/>.

#include <Arduino.h>

#include <button.h>

Button::Button( int pin )

_pin( pin ),

_state( digitalRead( pin )? false : true ),

_state_millis( ::millis() ),

_state_duration( 0 )

{

}

void Button::add_event_at( int duration, int event_id )

{

_press_events[ duration ] = event_id;

}

int Button::update()

{

// reset event

_event_id = 0;

// get time

unsigned long millis = ::millis();

// get state and check for change

bool state = digitalRead( _pin )? false : true;

if( state != _state )

{

_state = state;

_state_millis = millis;

_state_duration = 0;

}

// if button has been pressed for any amount of time

if( state && _state_millis < millis )

{

// calculate new duration for this state

unsigned long duration = millis - _state_millis;

// check through events to see if the button has been

// pressed long enough to trigger one

for( std::map< int, int >::iterator i = _press_events.begin();

i != _press_events.end(); i++ )

{

// if this event is in the future, we can stop looking

if( duration < (unsigned long)i->first )

break;

// if this event happened since the previous update, we

// can trigger it

if( _state_duration < (unsigned long)i->first )

_event_id = i->second;

}

// update the duration we've accounted for

_state_duration = duration;

}

return _event_id;

}

int Button::get_triggered_event()

{

return _event_id;

}

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