externalin.cpp

00001 #include "externalin.h"
00002 
00003 ExternalIn::ExternalIn(PCA9555 *ioExt, unsigned int pin)
00004     : extIO(ioExt), inPin(pin) {
00005     
00006     pinState = false;
00007  
00008     extIO->change(this, &ExternalIn::callChange);
00009 }
00010 
00011 ExternalIn::ExternalIn(PCA9555 *ioExt, unsigned int pin, bool defaultState)
00012     : extIO(ioExt), inPin(pin), pinState(defaultState) {
00013     
00014     extIO->change(this, &ExternalIn::callChange);
00015 }
00016 
00017 bool ExternalIn::read() {
00018     return extIO->getPin(inPin);
00019 }
00020 
00021 void ExternalIn::setState(bool newState) {
00022     bool oldState = pinState;
00023     pinState = newState;
00024     /*if (oldState != newState) {
00025         _callbackChange.call();
00026     }*/
00027 }
00028 
00029 void ExternalIn::change(void (*function)(void)) { 
00030     _callbackChange.attach(function);
00031 }
00032 /*
00033 template<typename T>
00034 void BallSens::change(T *object, void (T::*member)(void)) { 
00035     _callbackChange.attach(object, member); 
00036 }
00037 */
00038 void ExternalIn::callChange(void) {
00039     //setState((extIO->read() & ((unsigned int)1 << inPin)) > 0);
00040     _callbackChange.call();
00041 }