org.tritonus.share.midi
Class TMidiDevice

java.lang.Object
  org.tritonus.share.midi.TMidiDevice

All Implemented Interfaces:

MidiDevice

Direct Known Subclasses:

AlsaMidiDevice, TDirectSynthesizer, TSequencer

public abstract class TMidiDevice

extends Object

implements MidiDevice

Base class for MidiDevice implementations. The goal of this class is to supply the common functionality for classes that implement the interface MidiDevice.

Nested Class Summary

static class	TMidiDevice.Info
class	TMidiDevice.TReceiver Receiver proxy class.
class	TMidiDevice.TTransmitter

Constructor Summary

TMidiDevice(MidiDevice.Info info)
Initialize this class.

TMidiDevice(MidiDevice.Info info, boolean bUseIn, boolean bUseOut)
Initialize this class.

Method Summary

void	close()
protected void	closeImpl() Subclasses have to override this method to be notified of closeing.
MidiDevice.Info	getDeviceInfo() Retrieves a description of this instance.
int	getMaxReceivers()
int	getMaxTransmitters()
long	getMicrosecondPosition() Returns the device time in microseconds.
Receiver	getReceiver() Creates a new Receiver object associated with this instance.
List<Receiver>	getReceivers()
Transmitter	getTransmitter() Creates a new Transmitter object associated with this instance.
List<Transmitter>	getTransmitters()
protected boolean	getUseIn() Returns whether to handle input.
protected boolean	getUseOut() Returns whether to handle output.
boolean	isOpen()
void	open()
protected void	openImpl() Subclasses have to override this method to be notified of opening.
protected void	receive(MidiMessage message, long lTimeStamp)
protected void	sendImpl(MidiMessage message, long lTimeStamp) Send a MidiMessage to all Transmitters.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TMidiDevice

public TMidiDevice(MidiDevice.Info info)

Initialize this class. This sets the info from the passed one, sets the open status to false, the number of Receivers to zero and the collection of Transmitters to be empty.

Parameters:

info - The info object that describes this instance.

TMidiDevice

public TMidiDevice(MidiDevice.Info info,
                   boolean bUseIn,
                   boolean bUseOut)

Initialize this class. This sets the info from the passed one, sets the open status to false, the number of Receivers to zero and the collection of Transmitters to be empty.

Parameters:

info - The info object that describes this instance.

Method Detail

getDeviceInfo

public MidiDevice.Info getDeviceInfo()

Retrieves a description of this instance. This returns the info object passed to the constructor.

Specified by:

getDeviceInfo in interface MidiDevice

Returns:

the description

See Also:

TMidiDevice(javax.sound.midi.MidiDevice.Info, boolean, boolean)

open

public void open()
          throws MidiUnavailableException

Specified by:

open in interface MidiDevice

Throws:

MidiUnavailableException

openImpl

protected void openImpl()
                 throws MidiUnavailableException

Subclasses have to override this method to be notified of opening.

Throws:

MidiUnavailableException

close

public void close()

Specified by:

close in interface MidiDevice

closeImpl

protected void closeImpl()

Subclasses have to override this method to be notified of closeing.

isOpen

public boolean isOpen()

Specified by:

isOpen in interface MidiDevice

getUseIn

protected boolean getUseIn()

Returns whether to handle input. If this is true, retrieving Transmitters is possible and input from the physical port is passed to them.

See Also:

getUseOut()

getUseOut

protected boolean getUseOut()

Returns whether to handle output. If this is true, retrieving Receivers is possible and output to them is passed to the physical port.

See Also:

getUseIn()

getMicrosecondPosition

public long getMicrosecondPosition()

Returns the device time in microseconds. This is a default implementation, telling the application program that the device doesn't track time. If a device wants to give timing information, it has to override this method.

Specified by:

getMicrosecondPosition in interface MidiDevice

getMaxReceivers

public int getMaxReceivers()

Specified by:

getMaxReceivers in interface MidiDevice

getMaxTransmitters

public int getMaxTransmitters()

Specified by:

getMaxTransmitters in interface MidiDevice

getReceiver

public Receiver getReceiver()
                     throws MidiUnavailableException

Creates a new Receiver object associated with this instance. In this implementation, an unlimited number of Receivers per MidiDevice can be created.

Specified by:

getReceiver in interface MidiDevice

Throws:

MidiUnavailableException

getTransmitter

public Transmitter getTransmitter()
                           throws MidiUnavailableException

Creates a new Transmitter object associated with this instance. In this implementation, an unlimited number of Transmitters per MidiDevice can be created.

Specified by:

getTransmitter in interface MidiDevice

Throws:

MidiUnavailableException

getReceivers

public List<Receiver> getReceivers()

Specified by:

getReceivers in interface MidiDevice

getTransmitters

public List<Transmitter> getTransmitters()

Specified by:

getTransmitters in interface MidiDevice

receive

protected void receive(MidiMessage message,
                       long lTimeStamp)

sendImpl

protected void sendImpl(MidiMessage message,
                        long lTimeStamp)

Send a MidiMessage to all Transmitters. This method should be called by subclasses when they get a message from a physical MIDI port.