Java Control类代码示例

import javax.media.Control; //导入依赖的package包/类
/**
 * Get the Control that supports the class or interface
 * specified.  The full class or interface name should be
 * specified.  Null is returned if the Control is not
 * supported.
 *
 * @return     Control for the given class or interface
 *             name, or null if no such Control is supported.
 */
public Control getControl(String forName) {
    Class c;

    try {
        c = Class.forName(forName);
    } catch(Exception e) {
        return null;
    }

    synchronized(controls) {
        for(int i = 0, n = controls.size(); i < n; i++) {
            Control control = (Control)controls.elementAt(i);
            if( c.isInstance(control) ) {
                return control;
            }
        }
    }

    return null;
}
 

import javax.media.Control; //导入依赖的package包/类
/**
 * Displays each Control not currently being shown.
 */
public static void showControls(Controller controller) {

    // Show all Controls not yet being shown
    Control[] controls = controller.getControls();

    for(int i = 0; i < controls.length; i++) {
        Component c =
            controls[i].getControlComponent();

        if( c != null && ! c.isShowing() ) {

            JFrame frame = new JFrame(
                controls[i].getClass().getName() );

            frame.getContentPane().add(c);
            frame.pack();
            frame.setVisible(true);
        }
    } 
}
 

import javax.media.Control; //导入依赖的package包/类
public void select(Locator component)
            throws InvalidLocatorException, InvalidServiceComponentException,
        InsufficientResourcesException, SecurityException {
    if (!checkLocator(component))
        throw new InvalidLocatorException(component);
    Control control = getControl((BDLocator)component);
    if (control == null)
        throw new InvalidLocatorException(component);
    if (!(control instanceof StreamControl))
        return;
    int stream = getStream((BDLocator)component);
    if (stream <= 0)
        throw new InvalidLocatorException(component);
    try {
        ((StreamControl)control).selectStreamNumber(stream);
    } catch (Exception e) {
        postMediaSelectFailedEvent(new Locator[] { component });
        throw new InvalidLocatorException(component);
    }
}
 

import javax.media.Control; //导入依赖的package包/类
public Handler() {
    controls = new Control[18];
    controls[0] = new AngleControlImpl(this);
    controls[1] = new AudioMetadataControlImpl();
    controls[2] = new BackgroundVideoPresentationControlImpl(this);
    controls[3] = new DVBMediaSelectControlImpl(this);
    controls[4] = new MediaTimeEventControlImpl();
    controls[5] = new MediaTimePositionControlImpl(this);
    controls[6] = new OverallGainControlImpl(this);
    controls[7] = new PanningControlImpl(this);
    controls[8] = new PiPControlImpl(this);
    controls[9] = new PlaybackControlImpl(this);
    controls[10] = new PlayListChangeControlImpl(this);
    controls[11] = new PrimaryAudioControlImpl(this);
    controls[12] = new PrimaryGainControlImpl(this);
    controls[13] = new SecondaryAudioControlImpl(this);
    controls[14] = new SecondaryGainControlImpl(this);
    controls[15] = new SubtitlingControlImpl(this);
    controls[16] = new UOMaskTableControlImpl(this);
    controls[17] = new VideoFormatControlImpl(this);
}
 

import javax.media.Control; //导入依赖的package包/类
/**
 * Add a Control to this Controller.
 *
 * @param      newControl
 *             The Control to add.
 */
public void addControl(Control newControl) {
    synchronized(controls) {
        if(! controls.contains(newControl) ) {
            controls.addElement(newControl);
        }
    }
}
 

import javax.media.Control; //导入依赖的package包/类
/**
 * Get a list of the Control objects that this Controller
 * supports.  If there are no controls, an array of length
 * zero is returned.
 *
 * @return     A list of Controller Controls.
 *
 */
public Control[] getControls() {
    Control[] array;
    synchronized(controls) {
        array = new Control[ controls.size() ];
        controls.copyInto(array);
    }
    return array;
}
 

import javax.media.Control; //导入依赖的package包/类
public MonitorCDS(DataSource ds) {
// Get the stream from the actual datasource
// and create a MonitorStream from it
// Export the MonitorControl interface of the MonitorStream
if (ds instanceof PushBufferDataSource) {
    delegate = (PushBufferDataSource) ds;
    delStreams = delegate.getStreams();
    monitorStream = new MonitorStream(delStreams[0], this);
    monitorStreams = new PushBufferStream[] {monitorStream};
    controls = new Control[] {monitorStream};
}
   }
 

import javax.media.Control; //导入依赖的package包/类
/**
    * Setting the encoding quality to the specified value on the JPEG encoder.
    * 0.5 is a good default.
    */
   void setJPEGQuality(Player p, float val) {

Control cs[] = p.getControls();
QualityControl qc = null;
VideoFormat jpegFmt = new VideoFormat(VideoFormat.JPEG);

// Loop through the controls to find the Quality control for
	// the JPEG encoder.
for (int i = 0; i < cs.length; i++) {

    if (cs[i] instanceof QualityControl &&
	cs[i] instanceof Owned) {
	Object owner = ((Owned)cs[i]).getOwner();

	// Check to see if the owner is a Codec.
	// Then check for the output format.
	if (owner instanceof Codec) {
	    Format fmts[] = ((Codec)owner).getSupportedOutputFormats(null);
	    for (int j = 0; j < fmts.length; j++) {
		if (fmts[j].matches(jpegFmt)) {
		    qc = (QualityControl)cs[i];
    		    qc.setQuality(val);
		    System.err.println("- Setting quality to " + 
				val + " on " + qc);
		    break;
		}
	    }
	}
	if (qc != null)
	    break;
    }
}
   }
 

import javax.media.Control; //导入依赖的package包/类
public Control getControl(String forName) {
    try {
        Class cls = Class.forName(forName);
        for (int i = 0; i < controls.length; i++) {
            if (cls.isInstance(controls[i]))
                return controls[i];
        }
        Logger.getLogger("BDHandler").error("getControl(): control not found: " + forName);
        return null;
    } catch (ClassNotFoundException e) {
        Logger.getLogger("BDHandler").error("getControl(): " + e);
        return null;
    }
}
 

import javax.media.Control; //导入依赖的package包/类
public void replace(Locator fromComponent, Locator toComponent)
           throws InvalidLocatorException, InvalidServiceComponentException,
           InsufficientResourcesException, SecurityException {
    if (!checkLocator(fromComponent))
        throw new InvalidLocatorException(fromComponent);
    if (!checkLocator(toComponent))
        throw new InvalidLocatorException(toComponent);
    Control fromControl = getControl((BDLocator)fromComponent);
    if (fromControl == null)
        throw new InvalidLocatorException(fromComponent);
    Control toControl = getControl((BDLocator)toComponent);
    if (toControl == null)
        throw new InvalidLocatorException(toComponent);
    if (fromControl != toControl)
        throw new InvalidLocatorException(fromComponent);
    int fromStream = getStream((BDLocator)fromComponent);
    if ((fromStream <= 0) || (fromStream != ((StreamControl)fromControl).getCurrentStreamNumber()))
        throw new InvalidLocatorException(fromComponent);
    int toStream = getStream((BDLocator)toComponent);
    if (toStream <= 0)
        throw new InvalidLocatorException(toComponent);
    try {
        ((StreamControl)fromControl).selectStreamNumber(toStream);
    } catch (Exception e) {
        postMediaSelectFailedEvent(new Locator[] { toComponent });
        throw new InvalidLocatorException(toComponent);
    }
}
 

import javax.media.Control; //导入依赖的package包/类
private Control getControl(BDLocator locator) {
    if (locator.getPrimaryVideoStreamNumber() > 0)
        return player.getControl("org.bluray.media.BackgroundVideoPresentationControl");
    else if (locator.getPrimaryAudioStreamNumber() > 0)
        return player.getControl("org.bluray.media.PrimaryAudioControl");
    else if (locator.getSecondaryVideoStreamNumber() > 0)
        return player.getControl("org.bluray.media.AsynchronousPiPControl");
    else if (locator.getSecondaryAudioStreamNumber() > 0)
        return player.getControl("org.bluray.media.SecondaryAudioControl");
    else if (locator.getPGTextStreamNumber() > 0)
        return player.getControl("org.bluray.media.SubtitlingControl");
    return null;
}
 

import javax.media.Control; //导入依赖的package包/类
public Control getControl(String forName) {
    try {
        Class cls = Class.forName(forName);
        for (int i = 0; i < controls.length; i++) {
            if (cls.isInstance(controls[i]))
                return controls[i];
        }
        return null;
    } catch (ClassNotFoundException e) {
        return null;
    }
}
 

import javax.media.Control; //导入依赖的package包/类
public Object[] getControls()
{
    if (controls == null)
    {
        controls = new Control[0];
    }
    return controls;
}
 

import javax.media.Control; //导入依赖的package包/类
public Object [] getControls() {
    // No controls
    return new Control[0];
}
 

import javax.media.Control; //导入依赖的package包/类
/**
 * Returns an array of supported controls
 */
public Object[] getControls() {
	// No controls
	return (Object[]) new Control[0];
}