JMF简单示例

java 代码

import
 java.awt.*;
import
 java.awt.event.*;
import
 javax.swing.*;
import
 javax.media.*;

public
 
class
 VideoDemo 
extends
 JFrame 
implements
 ActionListener,ControllerListener
{
JMenuBar jMenuBar1=new
 JMenuBar();
JMenu jMenuFile=new
 JMenu(
"File"
);
JMenu jMenuList=new
 JMenu(
"List"
);
JMenu jMenuControl=new
 JMenu(
"Control"
);
JMenu jMenuSkin=new
 JMenu(
"Skin"
);
JMenu jMenuHelp=new
 JMenu(
"Help"
);
JMenuItem jMenuFileOpen=new
 JMenuItem(
"Open"
);
JMenuItem jMenuFileExit=new
 JMenuItem(
"Exit"
);
JMenuItem jMenuControlPlay=new
 JMenuItem(
"Play"
);
JMenuItem jMenuControlPause=new
 JMenuItem(
"Pause"
);
JMenuItem jMenuControlStop=new
 JMenuItem(
"Stop"
);
JMenuItem jMenuSkinmetal=new
 JMenuItem(
"metalSkin"
);
JMenuItem jMenuSkinwindows=new
 JMenuItem(
"windowsSkin"
);
JMenuItem jMenuSkinmotif=new
 JMenuItem(
"motifSkin"
);
JMenuItem jMenuControlFullScreen=new
 JMenuItem(
"FullScreen"
);
JLabel statusBar=new
 JLabel();
JLabel welcome=new
 JLabel();
Player player;
Component visualComponent;//Video player component
Component controlComponent;//video player control component
JPanel jPanel1=new
 JPanel(
new
 BorderLayout());
String file=""
;
String strDir;

public
 VideoDemo()
{
this
.setSize(
400
,
300
);
this
.setTitle(
"Casper's player"
);
welcome=new
 JLabel(
new
 ImageIcon(
"girl.jpg"
));
jPanel1.add(welcome);
statusBar.setText(" "
);
jMenuFileExit.addActionListener(this
);
jMenuFileOpen.addActionListener(this
);
jMenuFile.add(jMenuFileOpen);
jMenuFile.addSeparator();
jMenuFile.add(jMenuFileExit);
jMenuBar1.add(jMenuFile);

jMenuBar1.add(jMenuSkin);
jMenuSkin.add(jMenuSkinmetal);
jMenuSkinmetal.addActionListener(this
);
jMenuSkin.add(jMenuSkinwindows);
jMenuSkinwindows.addActionListener(this
);
jMenuSkin.add(jMenuSkinmotif);
jMenuSkinmotif.addActionListener(this
);

jMenuBar1.add(jMenuControl);/////////////
jMenuControl.add(jMenuControlPlay);
jMenuControlPlay.addActionListener(this
);
jMenuControl.add(jMenuControlPause);
jMenuControlPause.addActionListener(this
);
jMenuControl.add(jMenuControlStop);
jMenuControlStop.addActionListener(this
);
jMenuControl.add(jMenuControlFullScreen);///////////
jMenuControlFullScreen.addActionListener(this
);

jMenuBar1.add(jMenuList);
jMenuBar1.add(jMenuHelp);
this
.setJMenuBar(jMenuBar1);
statusBar.setText("No file open"
);
Manager.setHint(Manager.LIGHTWEIGHT_RENDERER,new
 Boolean(
true
));
//
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this
.getContentPane().add(statusBar,
"South"
);
this
.getContentPane().add(jPanel1,
"Center"
);
this
.setVisible(
true
);
}

public
 
void
 actionPerformed(ActionEvent e)
{
    //Skin menu(three skins)
    if
(e.getSource()==jMenuSkinwindows)
    {
        String windows="com.sun.java.swing.plaf.windows.WindowsLookAndFeel"
;
        try
{
            UIManager.setLookAndFeel(windows);//设置见面风格
            SwingUtilities.updateComponentTreeUI(this
);
//使设置的界面风格生效
            this
.pack();
            }catch
(Exception e1){
                System.out.println("can't set such style"
);
            }
    }
    else
 
if
(e.getSource()==jMenuSkinmetal)
    {
        String metal="javax.swing.plaf.metal.MetalLookAndFeel"
;
        try
{
            UIManager.setLookAndFeel(metal);
            SwingUtilities.updateComponentTreeUI(this
);
            this
.pack();
            }catch
(Exception e1){
                System.out.println("can't set such style"
);
            }
    }
    else
 
if
(e.getSource()==jMenuSkinmotif)
    {
        String motif="com.sun.java.swing.plaf.motif.MotifLookAndFeel"
;
        try
{
            UIManager.setLookAndFeel(motif);
            SwingUtilities.updateComponentTreeUI(this
);
            this
.pack();
            }catch
(Exception e1){
                System.out.println("can't set such style"
);
            }
    }
//////////////////////////////////////////////////////////////////

//File menu
else
 
if
(e.getSource()==jMenuFileExit)
{
if
(player!=
null
)
    player.close();
this
.dispose();
System.exit(0
);
}
else
 
if
(e.getSource()==jMenuFileOpen)
{
try
   {
   jPanel1.remove(welcome);
   FileDialog dlgOpen=new
 FileDialog(
this
,
"Open file"
,FileDialog.LOAD);
   dlgOpen.setDirectory(strDir);
   dlgOpen.setVisible(true
);
   strDir=dlgOpen.getDirectory();
   if
(strDir!=
null
)
    {
    if
(player!=
null
)
        player.close();
    if
(visualComponent!=
null
)
        jPanel1.remove(visualComponent);
    if
(controlComponent!=
null
)
        jPanel1.remove(controlComponent);
    visualComponent=null
;
    controlComponent=null
;
    file=strDir+dlgOpen.getFile();
   // player=Manager.createPlayer(new URL("file:\\"+file));//create the object of the media will play
    player = Manager.createPlayer (new
 MediaLocator("file:
” +file));

    statusBar.setText("
playing: 
"+file.toString());//display the file imfomation
    player.addControllerListener(this);
    player.prefetch();//get the file data
    }
   }catch(Exception ex){ex.printStackTrace();}
}
////////////////////////////////////////////////////////

//control funcitons Menu
else if(e.getSource()==jMenuControlFullScreen)//Full screen
{
    dispose();
    setUndecorated(true);
    getGraphicsConfiguration().getDevice().setFullScreenWindow(this);
    setVisible(true);
}

else if(e.getActionCommand().equals("
Play
")) //play
{
     if(player != null)
     {
             player.start();
     }
     return;
}
else if(e.getActionCommand().equals("
Pause
")) //pause
{
     if(player != null)
     {
             player.stop();
     }
     return;
}
else if(e.getActionCommand().equals("
Stop"))
//stop
{
     if
(player != 
null
)
     {
        player.stop();
         player.setMediaTime(new
 Time(
0
));
}
return
;
}
}

public
 
void
 controllerUpdate(ControllerEvent e)
{
if
(e 
instanceof
 PrefetchCompleteEvent)
{
player.start();
return
;
}
if
(e 
instanceof
 RealizeCompleteEvent)
{
visualComponent=player.getVisualComponent();
if
(visualComponent!=
null
)
jPanel1.add(visualComponent,BorderLayout.CENTER);

controlComponent=player.getControlPanelComponent();//time shaft control
if
(controlComponent!=
null
)
jPanel1.add(controlComponent,BorderLayout.SOUTH);
player.getGainControl(); //volume control conponent

this
.pack();
this
.setResizable(
false
);
this
.setVisible(
true
);
return
;
}
}

public
 
static
 
void
 main(String[] args)
{new
 VideoDemo();}
}

/*Player类中的很多方法只有在Player对象处于Realized的状态下才会被调用。
为了保证Player对象已经到达了该状态，
你需要使用Manager的createRealizePlayer（）方法
来获得Player对象。但是对于start（）方法来说，
你可以在Player对象到达Prefetched状态之前调用它，
它可以自动将Player的状态转换到Started状态*/

//Dimension screen=Toolkit.getDefaultToolkit().getScreenSize();//取出屏幕大小

//player.getGainControl().getControlComponent(); //是操作音量（增加）的可视组件volume control conponent