74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
/**
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* Class definition for a MicroBitEvent.
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*
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* The MicroBitEvent is the event object that represents an event that has occurred on the ubit.
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*/
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#include "MicroBit.h"
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/**
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* Constructor.
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* @param src ID of the MicroBit Component that generated the event e.g. MICROBIT_ID_BUTTON_A.
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* @param value Component specific code indicating the cause of the event.
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* @param fire whether the event should be fire immediately upon construction
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*
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* Example:
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* @code
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* MicrobitEvent evt(id,MICROBIT_BUTTON_EVT_CLICK,true); // auto fire
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* @endcode
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*/
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MicroBitEvent::MicroBitEvent(uint16_t source, uint16_t value, MicroBitEventLaunchMode mode)
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{
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this->source = source;
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this->value = value;
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this->timestamp = system_timer_current_time();
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if(mode != CREATE_ONLY)
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this->fire(mode);
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}
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/**
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* Default constructor - initialises all values, and sets timestamp to the current time.
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*/
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MicroBitEvent::MicroBitEvent()
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{
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this->source = 0;
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this->value = 0;
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this->timestamp = system_timer_current_time();
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}
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/**
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* Fires the represented event onto the default message bus.
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*/
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void MicroBitEvent::fire(MicroBitEventLaunchMode mode)
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{
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if(MicroBitMessageBus::defaultMessageBus)
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{
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if (mode == CREATE_AND_QUEUE)
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MicroBitMessageBus::defaultMessageBus->send(*this);
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else if (mode == CREATE_AND_FIRE)
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MicroBitMessageBus::defaultMessageBus->process(*this);
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}
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}
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/**
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* Fires the represented event onto the message bus.
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*/
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void MicroBitEvent::fire()
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{
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fire(MICROBIT_EVENT_DEFAULT_LAUNCH_MODE);
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}
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/**
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* Constructor.
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* Create a new MicroBitEventQueueItem.
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* @param evt The event to be queued.
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*/
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MicroBitEventQueueItem::MicroBitEventQueueItem(MicroBitEvent evt)
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{
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this->evt = evt;
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this->next = NULL;
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}
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