org.wandora.application.gui.previews.formats

Class AudioMidi

java.lang.Object

org.wandora.application.gui.previews.formats.AudioMidi

All Implemented Interfaces:

java.awt.event.ActionListener, java.util.EventListener, javax.sound.midi.MetaEventListener, PreviewPanel

public class AudioMidi
extends java.lang.Object
implements java.awt.event.ActionListener, javax.sound.midi.MetaEventListener, PreviewPanel

Author:

akivela

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.String	audioLocator
private java.awt.image.BufferedImage	bgImage
private boolean	isPlaying
private java.util.Map<java.lang.String,java.lang.String>	options
private static java.lang.String	OPTIONS_PREFIX
private java.awt.Dimension	panelDimensions
private javax.sound.midi.Sequencer	sequencer
private javax.swing.JPanel	ui
private int	volume

Constructor Summary

Constructors

Constructor and Description
AudioMidi(java.lang.String audioLocator) Creates a new instance of AudioMidiPreviewPanel

Method Summary

Modifier and Type	Method and Description
void	actionPerformed(java.awt.event.ActionEvent actionEvent)
static boolean	canView(java.lang.String url)
void	finish()
javax.swing.JPanel	getGui() Is called to get the actual preview component.
javax.swing.JPopupMenu	getImageMenu()
protected javax.swing.JComponent	getJToolBar()
void	initialize()
boolean	isHeavy() This is a deprecated method to tell the preview is a heavy weight AWT component.
protected javax.swing.JPanel	makeUI()
void	meta(javax.sound.midi.MetaMessage event)
void	play()
void	setVolume(int gain)
void	stop() Called whenever the PreviewPanel should stop i.e.
void	updateAudioMenu()

Methods inherited from class java.lang.Object

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

Field Detail

OPTIONS_PREFIX

private static final java.lang.String OPTIONS_PREFIX

See Also:

Constant Field Values

options

private java.util.Map<java.lang.String,java.lang.String> options

audioLocator

private java.lang.String audioLocator

panelDimensions

private java.awt.Dimension panelDimensions

bgImage

private java.awt.image.BufferedImage bgImage

isPlaying

private boolean isPlaying

sequencer

private javax.sound.midi.Sequencer sequencer

volume

private int volume

ui

private javax.swing.JPanel ui

Constructor Detail

AudioMidi

public AudioMidi(java.lang.String audioLocator)

Creates a new instance of AudioMidiPreviewPanel

Method Detail

isHeavy

public boolean isHeavy()

Description copied from interface: PreviewPanel

This is a deprecated method to tell the preview is a heavy weight AWT component. These days Java can mix heavy weight and swing component, and the isHeavy is not that important any more. Notice, returning a true value actually triggers some additional wrapping for the component returned by the getGui method. See AWTWrapper class for details.

Specified by:

isHeavy in interface PreviewPanel

initialize

public void initialize()

finish

public void finish()

Specified by:

finish in interface PreviewPanel

getGui

public javax.swing.JPanel getGui()

Description copied from interface: PreviewPanel

Is called to get the actual preview component. Wandora places the preview component into the user interface of the application. Usually the returned component is JPanel containing various other components such as images and buttons. This method is usually called from the PreviewWrapper. Running the method has no time limit. PreviewWrapper views a loading message and uses a separate thread to call the getGui, preventing the application to freeze.

Specified by:

getGui in interface PreviewPanel

stop

public void stop()

Description copied from interface: PreviewPanel

Called whenever the PreviewPanel should stop i.e. exit. This is usually called whenever the user closes the preview by closing the topic or by opening another topic. The PreviewPanel should release all resources while stopping. This method is usually called from the PreviewWrapper's stop method.

Specified by:

stop in interface PreviewPanel

makeUI

protected javax.swing.JPanel makeUI()

getJToolBar

protected javax.swing.JComponent getJToolBar()

play

public void play()

meta

public void meta(javax.sound.midi.MetaMessage event)

Specified by:

meta in interface javax.sound.midi.MetaEventListener

setVolume

public void setVolume(int gain)

updateAudioMenu

public void updateAudioMenu()

getImageMenu

public javax.swing.JPopupMenu getImageMenu()

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent actionEvent)

Specified by:

actionPerformed in interface java.awt.event.ActionListener

canView

public static boolean canView(java.lang.String url)