java/src/com/tightvnc/rfbplayer/RfbPlayer.java - android_external_tigervnc - Gitiles

 //
 //  Copyright (C) 2001,2002 HorizonLive.com, Inc.  All Rights Reserved.
 //  Copyright (C) 1999 AT&T Laboratories Cambridge.  All Rights Reserved.
 //
 //  This is free software; you can redistribute it and/or modify
 //  it under the terms of the GNU General Public License as published by
 //  the Free Software Foundation; either version 2 of the License, or
 //  (at your option) any later version.
 //
 //  This software is distributed in the hope that it will be useful,
 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 //  GNU General Public License for more details.
 //
 //  You should have received a copy of the GNU General Public License
 //  along with this software; if not, write to the Free Software
 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
 //  USA.
 //

 package com.tightvnc.rfbplayer;

 import java.awt.*;
 import java.awt.event.*;
 import java.io.*;

 public class RfbPlayer extends java.applet.Applet
     implements java.lang.Runnable, WindowListener {

   boolean inAnApplet = true;
   boolean inSeparateFrame = false;

   /** current applet width */
   int dispW = 300;
   /** current applet height */
   int dispH = 200;

   //
   // main() is called when run as a java program from the command line.
   // It simply runs the applet inside a newly-created frame.
   //
   public static void main(String[] argv) {
     RfbPlayer p = new RfbPlayer();
     p.mainArgs = argv;
     p.inAnApplet = false;
     p.inSeparateFrame = true;

     p.init();
     p.start();
   }

   String[] mainArgs;

   FbsInputStream fbs;
   RfbProto rfb;
   Thread rfbThread;

   Frame vncFrame;
   Container vncContainer;
   //ScrollPane desktopScrollPane;
   LWScrollPane desktopScrollPane;
   GridBagLayout gridbag;
   ButtonPanel buttonPanel;
   VncCanvas vc;

   String sessionURL;
   String idxPrefix;
   long initialTimeOffset;
   double playbackSpeed;
   boolean autoPlay;
   boolean showControls;
   boolean isQuitting = false;
   int deferScreenUpdates;

   //
   // init()
   //
   public void init() {

     // LiveConnect work-a-round
     RfbSharedStatic.refApplet = this;

     readParameters();

     if (inSeparateFrame) {
       vncFrame = new Frame("RFB Session Player");
       if (!inAnApplet) {
         vncFrame.add("Center", this);
       }
       vncContainer = vncFrame;
     } else {
       vncContainer = this;
     }

     if (inSeparateFrame)
       vncFrame.addWindowListener(this);

     rfbThread = new Thread(this, "RfbThread");
     rfbThread.start();
   }

   public void update(Graphics g) {
   }

   //
   // run() - executed by the rfbThread to read RFB data.
   //
   public void run() {

     gridbag = new GridBagLayout();
     vncContainer.setLayout(gridbag);

     GridBagConstraints gbc = new GridBagConstraints();
     gbc.gridwidth = GridBagConstraints.REMAINDER;
     gbc.anchor = GridBagConstraints.NORTHWEST;

     if (showControls) {
       buttonPanel = new ButtonPanel(this);
       buttonPanel.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
       gridbag.setConstraints(buttonPanel, gbc);
       vncContainer.add(buttonPanel);
     }

     if (inSeparateFrame) {
       vncFrame.pack();
       vncFrame.setVisible(true);
     } else {
       validate();
     }

     try {
       java.applet.Applet applet = (inAnApplet) ? this : null;
       FbsConnection conn = new FbsConnection(sessionURL, idxPrefix, applet);
       fbs = conn.connect(initialTimeOffset);
       rfb = new RfbProto(fbs);

       vc = new VncCanvas(this);
       gbc.weightx = 1.0;
       gbc.weighty = 1.0;

       // Create a panel which itself is resizeable and can hold
       // non-resizeable VncCanvas component at the top left corner.
       //Panel canvasPanel = new Panel();
       //canvasPanel.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
       //canvasPanel.add(vc);

       // Create a ScrollPane which will hold a panel with VncCanvas
       // inside.
       //desktopScrollPane = new ScrollPane(ScrollPane.SCROLLBARS_AS_NEEDED);
       desktopScrollPane = new LWScrollPane();
       gbc.fill = GridBagConstraints.BOTH;
       gridbag.setConstraints(vc, gbc);
       //gridbag.setConstraints(canvasPanel, gbc);
       desktopScrollPane.addComp(vc);
       desktopScrollPane.setSize(dispW, dispH);
       //desktopScrollPane.add(canvasPanel);

       // Now add the scroll bar to the container.
       if (inSeparateFrame) {
         gridbag.setConstraints(desktopScrollPane, gbc);
         vncFrame.add(desktopScrollPane);
         vncFrame.setTitle(rfb.desktopName);
         vc.resizeDesktopFrame();
       } else {
         // Size the scroll pane to display size.
         desktopScrollPane.setSize(dispW, dispH);

         // Just add the VncCanvas component to the Applet.
         gbc.fill = GridBagConstraints.NONE;
         gridbag.setConstraints(desktopScrollPane, gbc);
         add(desktopScrollPane);
         validate();
         vc.resizeEmbeddedApplet();
       }

       while (!isQuitting) {
         try {
           setPaused(!autoPlay);
           fbs.setSpeed(playbackSpeed);
           vc.processNormalProtocol();
         } catch (EOFException e) {
           long newTimeOffset;
           if (e.getMessage() != null && e.getMessage().equals("[JUMP]")) {
             // A special type of EOFException allowing us to close FBS stream
             // and then re-open it for jumping to a different time offset.
             newTimeOffset = fbs.getSeekOffset();
             autoPlay = !fbs.isPaused();
           } else {
             // Return to the beginning after the playback is finished.
             newTimeOffset = 0;
             autoPlay = false;
           }
           fbs.close();
           fbs = conn.connect(newTimeOffset);
           rfb.newSession(fbs);
           vc.updateFramebufferSize();
         } catch (NullPointerException e) {
           // catching this causes a hang with 1.4.1 JVM's under Win32 IE
           throw e;
         }
       }

     } catch (FileNotFoundException e) {
       fatalError(e.toString());
     } catch (Exception e) {
       e.printStackTrace();
       fatalError(e.toString());
     }

   }

   public void setPausedInt(String paused) {
     // default to true (pause)
     int pause = 1;

     try {
       pause = Integer.parseInt(paused);
     } catch (NumberFormatException e) {
     }

     if (pause == 0) {
       setPaused(false);
     } else {
       setPaused(true);
     }
   }

   public void setPaused(boolean paused) {
     if (showControls)
       buttonPanel.setPaused(paused);
     if (paused) {
       fbs.pausePlayback();
     } else {
       fbs.resumePlayback();
     }
   }

   public double getSpeed() {
     return playbackSpeed;
   }

   public void setSpeed(double speed) {
     playbackSpeed = speed;
     fbs.setSpeed(speed);
   }

   public void jumpTo(long pos) {
     long diff = Math.abs(pos - fbs.getTimeOffset());

     // Current threshold is 5 seconds
     if (diff > 5000) {
       fbs.pausePlayback();
       setPos(pos);
       fbs.resumePlayback();
     }
   }

   public void setPos(long pos) {
     fbs.setTimeOffset(pos, true);
   }

   public void updatePos() {
     if (showControls && buttonPanel != null)
       buttonPanel.setPos(fbs.getTimeOffset());
   }

   //
   // readParameters() - read parameters from the html source or from the
   // command line.  On the command line, the arguments are just a sequence of
   // param_name/param_value pairs where the names and values correspond to
   // those expected in the html applet tag source.
   //
   public void readParameters() {

     sessionURL = readParameter("URL", true);
     idxPrefix = readParameter("Index", false);

     initialTimeOffset = readLongParameter("Position", 0);
     if (initialTimeOffset < 0)
       initialTimeOffset = 0;

     playbackSpeed = readDoubleParameter("Speed", 1.0);
     if (playbackSpeed <= 0.0)
       playbackSpeed = 1.0;

     autoPlay = false;
     String str = readParameter("Autoplay", false);
     if (str != null && str.equalsIgnoreCase("Yes"))
       autoPlay = true;

     showControls = true;
     str = readParameter("Show_Controls", false);
     if (str != null && str.equalsIgnoreCase("No"))
       showControls = false;

     if (inAnApplet) {
       str = readParameter("Open_New_Window", false);
       if (str != null && str.equalsIgnoreCase("Yes"))
         inSeparateFrame = true;
     }

     // Fine tuning options.
     deferScreenUpdates = (int)readLongParameter("Defer_screen_updates", 20);
     if (deferScreenUpdates < 0)
       deferScreenUpdates = 0;	// Just in case.

     // Display width and height.
     dispW = readIntParameter("DISPLAY_WIDTH", dispW);
     dispH = readIntParameter("DISPLAY_HEIGHT", dispH);
   }

   public String readParameter(String name, boolean required) {
     if (inAnApplet) {
       String s = getParameter(name);
       if ((s == null) && required) {
         fatalError(name + " parameter not specified");
       }
       return s;
     }

     for (int i = 0; i < mainArgs.length; i += 2) {
       if (mainArgs[i].equalsIgnoreCase(name)) {
         try {
           return mainArgs[i + 1];
         } catch (Exception e) {
           if (required) {
             fatalError(name + " parameter not specified");
           }
           return null;
         }
       }
     }
     if (required) {
       fatalError(name + " parameter not specified");
     }
     return null;
   }

   long readLongParameter(String name, long defaultValue) {
     String str = readParameter(name, false);
     long result = defaultValue;
     if (str != null) {
       try {
         result = Long.parseLong(str);
       } catch (NumberFormatException e) {
       }
     }
     return result;
   }

   double readDoubleParameter(String name, double defaultValue) {
     String str = readParameter(name, false);
     double result = defaultValue;
     if (str != null) {
       try {
         result = Double.valueOf(str).doubleValue();
       } catch (NumberFormatException e) {
       }
     }
     return result;
   }

   int readIntParameter(String name, int defaultValue) {
     String str = readParameter(name, false);
     int result = defaultValue;
     if (str != null) {
       try {
         result = Integer.parseInt(str);
       } catch (NumberFormatException e) {
       }
     }
     return result;
   }

   //
   // fatalError() - print out a fatal error message.
   //
   public void fatalError(String str) {
     System.err.println(str);

     if (inAnApplet) {
       vncContainer.removeAll();
       if (rfb != null) {
         rfb = null;
       }
       Label errLabel = new Label(str);
       errLabel.setFont(new Font("Helvetica", Font.PLAIN, 12));
       vncContainer.setLayout(new FlowLayout(FlowLayout.LEFT, 30, 30));
       vncContainer.add(errLabel);
       if (inSeparateFrame) {
         vncFrame.pack();
       } else {
         validate();
       }
       Thread.currentThread().stop();
     } else {
       System.exit(1);
     }
   }


   //
   // This method is called before the applet is destroyed.
   //
   public void destroy() {
     isQuitting = true;
     vncContainer.removeAll();
     if (fbs != null) {
       fbs.quit();
       try {
         fbs.close();
       } catch (IOException e) {
       }
     }
     try {
       rfbThread.join();
     } catch (InterruptedException e) {
     }
     if (inSeparateFrame) {
       vncFrame.removeWindowListener(this);
       vncFrame.dispose();
     }
   }

   //
   // Set the new width and height of the applet. Call when browser is resized to
   // resize the viewer.
   //
   public void displaySize(int width, int height) {
     dispW = width;
     dispH = height;
     if (!inSeparateFrame) {
       vc.resizeEmbeddedApplet();
     }
   }

   //
   // Close application properly on window close event.
   //
   public void windowClosing(WindowEvent evt) {
     vncContainer.removeAll();
     if (rfb != null)
       rfb = null;

     vncFrame.dispose();
     if (!inAnApplet) {
       System.exit(0);
     }
   }

   //
   // Ignore window events we're not interested in.
   //
   public void windowActivated(WindowEvent evt) {
   }

   public void windowDeactivated(WindowEvent evt) {
   }

   public void windowOpened(WindowEvent evt) {
   }

   public void windowClosed(WindowEvent evt) {
   }

   public void windowIconified(WindowEvent evt) {
   }

   public void windowDeiconified(WindowEvent evt) {
   }

 }
	//
	// Copyright (C) 2001,2002 HorizonLive.com, Inc. All Rights Reserved.
	// Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
	//
	// This is free software; you can redistribute it and/or modify
	// it under the terms of the GNU General Public License as published by
	// the Free Software Foundation; either version 2 of the License, or
	// (at your option) any later version.
	//
	// This software is distributed in the hope that it will be useful,
	// but WITHOUT ANY WARRANTY; without even the implied warranty of
	// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	// GNU General Public License for more details.
	//
	// You should have received a copy of the GNU General Public License
	// along with this software; if not, write to the Free Software
	// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
	// USA.
	//

	package com.tightvnc.rfbplayer;

	import java.awt.*;
	import java.awt.event.*;
	import java.io.*;

	public class RfbPlayer extends java.applet.Applet
	implements java.lang.Runnable, WindowListener {

	boolean inAnApplet = true;
	boolean inSeparateFrame = false;

	/** current applet width */
	int dispW = 300;
	/** current applet height */
	int dispH = 200;

	//
	// main() is called when run as a java program from the command line.
	// It simply runs the applet inside a newly-created frame.
	//
	public static void main(String[] argv) {
	RfbPlayer p = new RfbPlayer();
	p.mainArgs = argv;
	p.inAnApplet = false;
	p.inSeparateFrame = true;

	p.init();
	p.start();
	}

	String[] mainArgs;

	FbsInputStream fbs;
	RfbProto rfb;
	Thread rfbThread;

	Frame vncFrame;
	Container vncContainer;
	//ScrollPane desktopScrollPane;
	LWScrollPane desktopScrollPane;
	GridBagLayout gridbag;
	ButtonPanel buttonPanel;
	VncCanvas vc;

	String sessionURL;
	String idxPrefix;
	long initialTimeOffset;
	double playbackSpeed;
	boolean autoPlay;
	boolean showControls;
	boolean isQuitting = false;
	int deferScreenUpdates;

	//
	// init()
	//
	public void init() {

	// LiveConnect work-a-round
	RfbSharedStatic.refApplet = this;

	readParameters();

	if (inSeparateFrame) {
	vncFrame = new Frame("RFB Session Player");
	if (!inAnApplet) {
	vncFrame.add("Center", this);
	}
	vncContainer = vncFrame;
	} else {
	vncContainer = this;
	}

	if (inSeparateFrame)
	vncFrame.addWindowListener(this);

	rfbThread = new Thread(this, "RfbThread");
	rfbThread.start();
	}

	public void update(Graphics g) {
	}

	//
	// run() - executed by the rfbThread to read RFB data.
	//
	public void run() {

	gridbag = new GridBagLayout();
	vncContainer.setLayout(gridbag);

	GridBagConstraints gbc = new GridBagConstraints();
	gbc.gridwidth = GridBagConstraints.REMAINDER;
	gbc.anchor = GridBagConstraints.NORTHWEST;

	if (showControls) {
	buttonPanel = new ButtonPanel(this);
	buttonPanel.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
	gridbag.setConstraints(buttonPanel, gbc);
	vncContainer.add(buttonPanel);
	}

	if (inSeparateFrame) {
	vncFrame.pack();
	vncFrame.setVisible(true);
	} else {
	validate();
	}

	try {
	java.applet.Applet applet = (inAnApplet) ? this : null;
	FbsConnection conn = new FbsConnection(sessionURL, idxPrefix, applet);
	fbs = conn.connect(initialTimeOffset);
	rfb = new RfbProto(fbs);

	vc = new VncCanvas(this);
	gbc.weightx = 1.0;
	gbc.weighty = 1.0;

	// Create a panel which itself is resizeable and can hold
	// non-resizeable VncCanvas component at the top left corner.
	//Panel canvasPanel = new Panel();
	//canvasPanel.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
	//canvasPanel.add(vc);

	// Create a ScrollPane which will hold a panel with VncCanvas
	// inside.
	//desktopScrollPane = new ScrollPane(ScrollPane.SCROLLBARS_AS_NEEDED);
	desktopScrollPane = new LWScrollPane();
	gbc.fill = GridBagConstraints.BOTH;
	gridbag.setConstraints(vc, gbc);
	//gridbag.setConstraints(canvasPanel, gbc);
	desktopScrollPane.addComp(vc);
	desktopScrollPane.setSize(dispW, dispH);
	//desktopScrollPane.add(canvasPanel);

	// Now add the scroll bar to the container.
	if (inSeparateFrame) {
	gridbag.setConstraints(desktopScrollPane, gbc);
	vncFrame.add(desktopScrollPane);
	vncFrame.setTitle(rfb.desktopName);
	vc.resizeDesktopFrame();
	} else {
	// Size the scroll pane to display size.
	desktopScrollPane.setSize(dispW, dispH);

	// Just add the VncCanvas component to the Applet.
	gbc.fill = GridBagConstraints.NONE;
	gridbag.setConstraints(desktopScrollPane, gbc);
	add(desktopScrollPane);
	validate();
	vc.resizeEmbeddedApplet();
	}

	while (!isQuitting) {
	try {
	setPaused(!autoPlay);
	fbs.setSpeed(playbackSpeed);
	vc.processNormalProtocol();
	} catch (EOFException e) {
	long newTimeOffset;
	if (e.getMessage() != null && e.getMessage().equals("[JUMP]")) {
	// A special type of EOFException allowing us to close FBS stream
	// and then re-open it for jumping to a different time offset.
	newTimeOffset = fbs.getSeekOffset();
	autoPlay = !fbs.isPaused();
	} else {
	// Return to the beginning after the playback is finished.
	newTimeOffset = 0;
	autoPlay = false;
	}
	fbs.close();
	fbs = conn.connect(newTimeOffset);
	rfb.newSession(fbs);
	vc.updateFramebufferSize();
	} catch (NullPointerException e) {
	// catching this causes a hang with 1.4.1 JVM's under Win32 IE
	throw e;
	}
	}

	} catch (FileNotFoundException e) {
	fatalError(e.toString());
	} catch (Exception e) {
	e.printStackTrace();
	fatalError(e.toString());
	}

	}

	public void setPausedInt(String paused) {
	// default to true (pause)
	int pause = 1;

	try {
	pause = Integer.parseInt(paused);
	} catch (NumberFormatException e) {
	}

	if (pause == 0) {
	setPaused(false);
	} else {
	setPaused(true);
	}
	}

	public void setPaused(boolean paused) {
	if (showControls)
	buttonPanel.setPaused(paused);
	if (paused) {
	fbs.pausePlayback();
	} else {
	fbs.resumePlayback();
	}
	}

	public double getSpeed() {
	return playbackSpeed;
	}

	public void setSpeed(double speed) {
	playbackSpeed = speed;
	fbs.setSpeed(speed);
	}

	public void jumpTo(long pos) {
	long diff = Math.abs(pos - fbs.getTimeOffset());

	// Current threshold is 5 seconds
	if (diff > 5000) {
	fbs.pausePlayback();
	setPos(pos);
	fbs.resumePlayback();
	}
	}

	public void setPos(long pos) {
	fbs.setTimeOffset(pos, true);
	}

	public void updatePos() {
	if (showControls && buttonPanel != null)
	buttonPanel.setPos(fbs.getTimeOffset());
	}

	//
	// readParameters() - read parameters from the html source or from the
	// command line. On the command line, the arguments are just a sequence of
	// param_name/param_value pairs where the names and values correspond to
	// those expected in the html applet tag source.
	//
	public void readParameters() {

	sessionURL = readParameter("URL", true);
	idxPrefix = readParameter("Index", false);

	initialTimeOffset = readLongParameter("Position", 0);
	if (initialTimeOffset < 0)
	initialTimeOffset = 0;

	playbackSpeed = readDoubleParameter("Speed", 1.0);
	if (playbackSpeed <= 0.0)
	playbackSpeed = 1.0;

	autoPlay = false;
	String str = readParameter("Autoplay", false);
	if (str != null && str.equalsIgnoreCase("Yes"))
	autoPlay = true;

	showControls = true;
	str = readParameter("Show_Controls", false);
	if (str != null && str.equalsIgnoreCase("No"))
	showControls = false;

	if (inAnApplet) {
	str = readParameter("Open_New_Window", false);
	if (str != null && str.equalsIgnoreCase("Yes"))
	inSeparateFrame = true;
	}

	// Fine tuning options.
	deferScreenUpdates = (int)readLongParameter("Defer_screen_updates", 20);
	if (deferScreenUpdates < 0)
	deferScreenUpdates = 0; // Just in case.

	// Display width and height.
	dispW = readIntParameter("DISPLAY_WIDTH", dispW);
	dispH = readIntParameter("DISPLAY_HEIGHT", dispH);
	}

	public String readParameter(String name, boolean required) {
	if (inAnApplet) {
	String s = getParameter(name);
	if ((s == null) && required) {
	fatalError(name + " parameter not specified");
	}
	return s;
	}

	for (int i = 0; i < mainArgs.length; i += 2) {
	if (mainArgs[i].equalsIgnoreCase(name)) {
	try {
	return mainArgs[i + 1];
	} catch (Exception e) {
	if (required) {
	fatalError(name + " parameter not specified");
	}
	return null;
	}
	}
	}
	if (required) {
	fatalError(name + " parameter not specified");
	}
	return null;
	}

	long readLongParameter(String name, long defaultValue) {
	String str = readParameter(name, false);
	long result = defaultValue;
	if (str != null) {
	try {
	result = Long.parseLong(str);
	} catch (NumberFormatException e) {
	}
	}
	return result;
	}

	double readDoubleParameter(String name, double defaultValue) {
	String str = readParameter(name, false);
	double result = defaultValue;
	if (str != null) {
	try {
	result = Double.valueOf(str).doubleValue();
	} catch (NumberFormatException e) {
	}
	}
	return result;
	}

	int readIntParameter(String name, int defaultValue) {
	String str = readParameter(name, false);
	int result = defaultValue;
	if (str != null) {
	try {
	result = Integer.parseInt(str);
	} catch (NumberFormatException e) {
	}
	}
	return result;
	}

	//
	// fatalError() - print out a fatal error message.
	//
	public void fatalError(String str) {
	System.err.println(str);

	if (inAnApplet) {
	vncContainer.removeAll();
	if (rfb != null) {
	rfb = null;
	}
	Label errLabel = new Label(str);
	errLabel.setFont(new Font("Helvetica", Font.PLAIN, 12));
	vncContainer.setLayout(new FlowLayout(FlowLayout.LEFT, 30, 30));
	vncContainer.add(errLabel);
	if (inSeparateFrame) {
	vncFrame.pack();
	} else {
	validate();
	}
	Thread.currentThread().stop();
	} else {
	System.exit(1);
	}
	}


	//
	// This method is called before the applet is destroyed.
	//
	public void destroy() {
	isQuitting = true;
	vncContainer.removeAll();
	if (fbs != null) {
	fbs.quit();
	try {
	fbs.close();
	} catch (IOException e) {
	}
	}
	try {
	rfbThread.join();
	} catch (InterruptedException e) {
	}
	if (inSeparateFrame) {
	vncFrame.removeWindowListener(this);
	vncFrame.dispose();
	}
	}

	//
	// Set the new width and height of the applet. Call when browser is resized to
	// resize the viewer.
	//
	public void displaySize(int width, int height) {
	dispW = width;
	dispH = height;
	if (!inSeparateFrame) {
	vc.resizeEmbeddedApplet();
	}
	}

	//
	// Close application properly on window close event.
	//
	public void windowClosing(WindowEvent evt) {
	vncContainer.removeAll();
	if (rfb != null)
	rfb = null;

	vncFrame.dispose();
	if (!inAnApplet) {
	System.exit(0);
	}
	}

	//
	// Ignore window events we're not interested in.
	//
	public void windowActivated(WindowEvent evt) {
	}

	public void windowDeactivated(WindowEvent evt) {
	}

	public void windowOpened(WindowEvent evt) {
	}

	public void windowClosed(WindowEvent evt) {
	}

	public void windowIconified(WindowEvent evt) {
	}

	public void windowDeiconified(WindowEvent evt) {
	}

	}