/*
|| @description
|| | Return the bitRead(state,CURRENT) of the switch
|| #
||
|| @return true if button is pressed
*/
bool Button::isPressed(void)
{
//save the previous value
bitWrite(state,PREVIOUS,bitRead(state,CURRENT));
//get the current status of the pin
if (digitalRead(pin) == mode)
{
//currently the button is not pressed
bitWrite(state,CURRENT,false);
}
else
{
//currently the button is pressed
bitWrite(state,CURRENT,true);
}
//handle state changes
if (bitRead(state,CURRENT) != bitRead(state,PREVIOUS))
{
//the state changed to PRESSED
if (bitRead(state,CURRENT) == true)
{
numberOfPresses++;
if (cb_onPress) { cb_onPress(*this); } //fire the onPress event
pressedStartTime = millis(); //start timing
triggeredHoldEvent = false;
}
else //the state changed to RELEASED
{
if (cb_onRelease) { cb_onRelease(*this); } //fire the onRelease event
if (cb_onClick) { cb_onClick(*this); } //fire the onClick event AFTER the onRelease
//reset states (for timing and for event triggering)
pressedStartTime = -1;
}
//note that the state changed
bitWrite(state,CHANGED,true);
}
else
{
//note that the state did not change
bitWrite(state,CHANGED,false);
//should we trigger a onHold event?
if (pressedStartTime!=-1 && !triggeredHoldEvent)
{
if (millis()-pressedStartTime > holdEventThreshold)
{
if (cb_onHold)
{
cb_onHold(*this);
triggeredHoldEvent = true;
}
}
}
}
return bitRead(state,CURRENT);
}
/*
|| @description
|| | Read and write states; issue callbacks
|| #
||
|| @return true if button is pressed
*/
void Button::process(void)
{
//save the previous value
bitWrite(state,PREVIOUS,bitRead(state,CURRENT));
//get the current status of the pin
if (digitalRead(pin) == mode)
{
//currently the button is not pressed
bitWrite(state,CURRENT,false);
}
else
{
//currently the button is pressed
bitWrite(state,CURRENT,true);
}
//handle state changes
if (bitRead(state,CURRENT) != bitRead(state,PREVIOUS))
{
unsigned int interval = millis() - debounceStartTime;
// if(debounceMode){
// Serial.print("debounceStartTime: ");
// Serial.print(debounceStartTime);
// Serial.print("\tdebounceDuration: ");
// Serial.println(debounceDuration);
// Serial.println(interval);
// }
if(debounceMode && interval < debounceDuration){
// not enough time has passed; ignore
return;
}
// Serial.println("state changed");
debounceStartTime = millis();
//the state changed to PRESSED
if (bitRead(state,CURRENT) == true)
{
numberOfPresses++;
if (cb_onPress) { cb_onPress(*this); } //fire the onPress event
pressedStartTime = millis(); //start timing
triggeredHoldEvent = false;
}
else //the state changed to RELEASED
{
if (cb_onRelease) { cb_onRelease(*this); } //fire the onRelease event
if (cb_onClick) { cb_onClick(*this); } //fire the onClick event AFTER the onRelease
//reset states (for timing and for event triggering)
pressedStartTime = -1;
}
//note that the state changed
bitWrite(state,CHANGED,true);
}
else
{
//note that the state did not change
bitWrite(state,CHANGED,false);
//should we trigger an onHold event?
if (pressedStartTime!=-1 && !triggeredHoldEvent)
{
if (millis()-pressedStartTime > holdEventThreshold)
{
if (cb_onHold)
{
cb_onHold(*this);
triggeredHoldEvent = true;
}
}
}
}
}