playerpanel.java

FMJ（freedom media for java)是java视频开发的新选择

package net.sf.fmj.ui.application;

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.SystemColor;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.media.MediaLocator;
import javax.media.format.AudioFormat;
import javax.media.protocol.FileTypeDescriptor;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JToolBar;
import javax.swing.SwingUtilities;

import net.sf.fmj.ui.control.TransportControlPanel;
import net.sf.fmj.ui.dialogs.RTPReceivePanel;
import net.sf.fmj.ui.dialogs.URLPanel;
import net.sf.fmj.ui.wizards.RTPTransmitWizard;
import net.sf.fmj.ui.wizards.TrackConfig;
import net.sf.fmj.ui.wizards.TranscodeWizard;
import net.sf.fmj.utility.LoggerSingleton;
import net.sf.fmj.utility.PathUtils;
import net.sf.fmj.utility.URLUtils;

/**
 * 
 * @author Warren Bloomer
 *
 */
public class PlayerPanel extends JPanel {

	private static final Logger logger = LoggerSingleton.logger;

	private PlayerPanelPrefs prefs;

	
	private JToolBar playerToolBar = null;
	private JButton openButton = null;
	private JButton openCaptureDeviceButton = null;
	private TransportControlPanel transportControlPanel = null;
	private JLabel statusBar = null;
	private JPanel videoPanel = null;
	private JComboBox addressComboBox = null;
	private JButton loadButton = null;
	private JPanel addressPanel = null;
	private JLabel locationLabel = null;
	private ContainerPlayer containerPlayer = null;  //  @jve:decl-index=0:visual-constraint="557,162"

	public void addMediaLocatorAndLoad(String url) {
		boolean alreadyThere = false;
		for (int i = 0; i < getAddressComboBox().getItemCount(); ++i)
		{	if (getAddressComboBox().getItemAt(i).equals(url))
			{
				alreadyThere = true;
				break;
			}
		}
		if (!alreadyThere)
		{	getAddressComboBox().addItem(url);
		}
		
		if (getAddressComboBox().getSelectedItem() == null || !getAddressComboBox().getSelectedItem().equals(url))
			getAddressComboBox().setSelectedItem(url);	// will auto-load
		else
			onLoadButtonClick();	// already selected
	}
	

	
	/**
	 * This method initializes videoPanel	
	 * 	
	 * @return javax.swing.JPanel	
	 */
	public JPanel getVideoPanel() {
		if (videoPanel == null) {
			videoPanel = new JPanel();
			
			videoPanel.setLayout(new BorderLayout());
			//videoPanel.setLayout(new FlowLayout(FlowLayout.CENTER));
		    //TitledBorder
	        //mediaBorder = new TitledBorder(
	        //    BorderConstants.etchedBorder, "Media" );
			//videoPanel.setBorder(mediaBorder);
	        
			videoPanel.setBackground(SystemColor.controlShadow);
		}
		return videoPanel;
	}
	/**
	 * This method initializes addressComboBox	
	 * 	
	 * @return javax.swing.JComboBox	
	 */
	private JComboBox getAddressComboBox() {
		if (addressComboBox == null) {
			addressComboBox = new JComboBox();
			addressComboBox.setEditable(true);
			addressComboBox.setPreferredSize(new Dimension(160, 27));
			for (int i=0; i<prefs.recentUrls.size(); i++) {
				addressComboBox.addItem((String) prefs.recentUrls.get(i));
			}
			addressComboBox.setSelectedIndex(-1);	// nothing selected by default.
			
			// load an item when selected from the list 
			addressComboBox.addItemListener(
					new ItemListener() {
						public void itemStateChanged(ItemEvent e) {
							// TODO: typing in the combo and clicking load... causes this event to fire, plus loads from clicking load.
							// TODO: typing in the combo and clicking tab, causes this event to fire.
							logger.fine("addressComboBox state change: " + e);
							if (e.getStateChange() == ItemEvent.SELECTED)
								onLoadButtonClick();
						}
					}
				);
		}
		return addressComboBox;
	}
	/**
	 * This method initializes loadButton	
	 * 	
	 * @return javax.swing.JButton	
	 */
	private JButton getLoadButton() {
		if (loadButton == null) {
			loadButton = new JButton();
			loadButton.setToolTipText("Load selected location");
			loadButton.setIcon(new ImageIcon(getClass().getResource("/net/sf/fmj/ui/images/import_wiz.png")));
			loadButton.addActionListener(new java.awt.event.ActionListener() {
				public void actionPerformed(java.awt.event.ActionEvent event) {
					onLoadButtonClick();
				}
			});
		}
		return loadButton;
	}
	
	private void onLoadButtonClick()
	{
		
		
		String location = (String) getAddressComboBox().getSelectedItem();
		
		if (location.trim().equals(""))
		{
			showError("No URL specified");
			return;
		}
		
		setCursor(new Cursor(Cursor.WAIT_CURSOR));
		
		try {
			getContainerPlayer().setMediaLocation(location, prefs.autoPlay);
		}
		catch (Throwable e) {
			
			logger.log(Level.WARNING, "" + e, e);
			showError("" + e);	// normally we would just want e.getMessage(), but in many cases this can be blank, like a NoPlayerException.
								// for now we'll just include the whole thing which includes the class.  A better way would be to 
								// translate an empty NoPlayerException into "Player not found" - which BTW isn't that sensible to a user not familiar with JMF...
			
			

			
			return;
		}
		finally
		{
			setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
		}
		
		// update prefs with new URL
		if (!prefs.recentUrls.contains(location))
		{	prefs.recentUrls.add(0, location);
			savePrefs();
		}
		else
		{
			// in list, make sure it is first.
			if (!prefs.recentUrls.get(0).equals(location))
			{
				// not in first position.  remove and re-add at head.
				prefs.recentUrls.remove(location);
				prefs.recentUrls.add(0, location);
				savePrefs();
			}
		}
	}
	
	private void showError(String e)
	{
		JOptionPane.showConfirmDialog(this, e, "Error", JOptionPane.DEFAULT_OPTION, JOptionPane.ERROR_MESSAGE);
		
		
	}
	
	
	/**
	 * This method initializes addressPanel	
	 * 	
	 * @return javax.swing.JPanel	
	 */
	private JPanel getAddressPanel() {
		if (addressPanel == null) {
			locationLabel = new JLabel();
			locationLabel.setText("Location:");
			addressPanel = new JPanel();
			addressPanel.setLayout(new GridBagLayout());
			//addressPanel.setBorder(BorderFactory.createEmptyBorder(0, 10, 0, 0));
			GridBagConstraints c1 = new GridBagConstraints();
			c1.insets = new Insets(0, 2, 0, 2);
			addressPanel.add(locationLabel, c1);
			GridBagConstraints c2 = new GridBagConstraints();
			c2.fill = GridBagConstraints.HORIZONTAL;
			c2.weightx = 1.0;
			c2.insets = new Insets(0, 2, 0, 2);
			addressPanel.add(getAddressComboBox(), c2);
			//GridBagConstraints c3 = new GridBagConstraints();
			//addressPanel.add(getLoadButton(), c1);
			
		}
		return addressPanel;
	}
	/**
	 * This method initializes containerPlayer	
	 * 	
	 * @return net.sf.fmj.ui.application.ContainerPlayer	
	 */
	private ContainerPlayer getContainerPlayer() {
		if (containerPlayer == null) {
			containerPlayer = new ContainerPlayer(getVideoPanel());
			containerPlayer.setAutoLoop(prefs.autoLoop);
			containerPlayer.setContainerPlayerStatusListener(new ContainerPlayerStatusListener() {

				public void onStatusChange(final String newStatus)
				{
					logger.fine("Status change: " + newStatus);	
					SwingUtilities.invokeLater(new Runnable() {
						public void run()
						{
							statusBar.setText(newStatus);
						}
					});
					
				}
				
			});
		}
		return containerPlayer;
	}

	/**
	 * This method initializes 
	 * 
	 */
	public PlayerPanel() {
		super();
		initialize();
	}

	/**
	 * This method initializes this