/*
	File:		TimeCode.java
	
	Description:	This demo program shows how to add and remove TimeCode tracks to a movie.
        
	Author:		Apple Computer, Inc.

	Copyright: 	© Copyright 2002 Apple Computer, Inc. All rights reserved.
	
	Disclaimer:	IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc.
				("Apple") in consideration of your agreement to the following terms, and your
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				constitutes acceptance of these terms.  If you do not agree with these terms,
				please do not use, install, modify or redistribute this Apple software.

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				to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
				copyrights in this original Apple software (the "Apple Software"), to use,
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				the Apple Software in its entirety and without modifications, you must retain
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				the Apple Software.  Neither the name, trademarks, service marks or logos of
				Apple Computer, Inc. may be used to endorse or promote products derived from the
				Apple Software without specific prior written permission from Apple.  Except as
				expressly stated in this notice, no other rights or licenses, express or implied,
				are granted by Apple herein, including but not limited to any patent rights that
				may be infringed by your derivative works or by other works in which the Apple
				Software may be incorporated.

				The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO
				WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
				WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
				PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
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				IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
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				ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
				
	Change History (most recent first):
            11/22/2002	md	new SampleCode revisions

*/

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

import quicktime.*;
import quicktime.io.*;
import quicktime.qd.*;
import quicktime.std.*;
import quicktime.std.image.*;
import quicktime.std.movies.*;
import quicktime.std.movies.media.*;
import quicktime.std.qtcomponents.*;
import quicktime.util.*;
import quicktime.app.display.QTCanvas;
import quicktime.app.players.QTPlayer;

public class TimeCode extends Frame {	
	
	public static void main (String args[]) {
		try {
			QTSession.open ();			
			TimeCode tc = new TimeCode("QT in Java");
				// this will lay out and resize the Frame to the size of the Movie
			tc.pack();
			tc.show();
			tc.toFront();
		} catch (QTException e) {
				// catch a userCanceledErr and just exit the program
			if (e.errorCode() == Errors.userCanceledErr) {
				QTSession.close();
				System.exit(0);
			}
				// some other error occured - print out a stack trace
				// and close the QTSession
			e.printStackTrace();
			QTSession.close();
		}
	}

	TimeCode (String title) throws QTException {
		super (title);
		setResizable (false);
		
			// prompt the user to select a movie file
		qtf = QTFile.standardGetFilePreview(QTFile.kStandardQTFileTypes);
			
			// open the selected file and make a Movie from it
		OpenMovieFile movieFile = OpenMovieFile.asRead(qtf);
		theMovie = Movie.fromFile (movieFile);
			
			// make a MovieController from the resultant Movie
			// enabling the keys so the user can interact with the movie with the keyboard
		mc = new MovieController (theMovie);
		mc.setKeysEnabled (true);
			
			// make a QTCanvas so that the MovieController has somewhere to draw
			// and add it to the Frame
		myQTCanvas = new QTCanvas();
		add (myQTCanvas);
		
			// make the QTDrawable object to present a MovieController
		QTPlayer myQTPlayer = new QTPlayer (mc);
		
			// Set it as the drawing client of the QTCanvas
			// for a QTPlayer this will also register interests
			// for both Mouse and Key events that originate in the QTCanvas			
		myQTCanvas.setClient (myQTPlayer, true);
		
			// add a file menu to add/remove time code to the movie
		new FileMenu (this);

			// add a Window Listener to this frame 
			// that will close down the QTSession, dispose of the Frame
			// which will close the window - where we exit
		addWindowListener(new WindowAdapter () {
			public void windowClosing (WindowEvent e) {
				QTSession.close();
				dispose();
			}

			public void windowClosed (WindowEvent e) { 
				System.exit(0);
			}
		});
	}
	
MovieController mc;
Movie theMovie;
QTCanvas myQTCanvas;
QTFile qtf;

	public void goAway () {
		QTSession.close();
		dispose();
		System.exit(0);
	}

	public void addTimecodeToMovie () {		
		try {
			Track myTrack = theMovie.getIndTrackType (1, StdQTConstants.timeCodeMediaType, 
														StdQTConstants.movieTrackMediaType );
				//only allow one time code track in movie
			if (myTrack != null) 
				return;


			// Get the (first) visual track; this track determines the width of the new timecode track
			Track theVisualTrack = theMovie.getIndTrackType (1, StdQTConstants.visualMediaCharacteristic, 
															StdQTConstants.movieTrackCharacteristic );
			
			QDDimension dim = null;
			// Get movie and track attributes
			int movieTimeScale = theMovie.getTimeScale();

				// Create the timecode track and media
			if (theVisualTrack == null) {
			 	QDRect r = mc.getBounds();
			 	dim = new QDDimension (r.getWidth(), r.getHeight());
			} else {
				Media theVisualTrackMedia = Media.fromTrack (theVisualTrack);
				dim = theVisualTrack.getSize();
			}
			
			Track theTCTrack = theMovie.newTrack ((float)dim.getWidth(), (float)dim.getHeight(), 0);			
			TimeCodeMedia theTCMedia = new TimeCodeMedia (theTCTrack, movieTimeScale);
			TimeCoder theTimeCoder = theTCMedia.getTimeCodeHandler();

			// Set up a TimeCodeDef
			TimeCodeDef	myTCDef = new TimeCodeDef();
				//30 frames a second time code reading
			int tcdFlags = StdQTConstants.tc24HourMax;
			myTCDef.setFlags (tcdFlags);
			myTCDef.setTimeScale (3000);
			myTCDef.setFrameDuration (100);
			myTCDef.setFramesPerSecond (30);
			/*
				For drop frame 29.97 fps
				tcdFlags |= StdQTConstants.tcDropFrame;
				myTCDef.setTimeScale (2997);
			*/
			// Start the timecode at 0:0:0:0
			TimeCodeTime myTCTime = new TimeCodeTime (0, 0, 0, 0);

			// Change the text options to Green on Black.
			String myTCString = theTimeCoder.timeCodeToString (myTCDef, myTCTime);
			TCTextOptions myTCTextOptions = theTimeCoder.getDisplayOptions();
			int textSize = myTCTextOptions.getTXSize();
			myTCTextOptions.setForeColor (QDColor.green);
			myTCTextOptions.setBackColor (QDColor.black);
			theTimeCoder.setDisplayOptions (myTCTextOptions);

		// Figure out the timecode track geometry
			QDDimension tcDim = theTCTrack.getSize();
			tcDim.setHeight( textSize + 2 );
			theTCTrack.setSize (tcDim);
			if (dim.getHeight() > 0) {
				Matrix TCMatrix = theTCTrack.getMatrix();
				TCMatrix.translate (0, dim.getHeight());
				theTCTrack.setMatrix (TCMatrix);
			}
									
			// add a sample to the timecode track
			//
			// each sample in a timecode track provides timecode information for a span of movie time;
			// here, we add a single sample that spans the entire movie duration

			// the sample data contains a frame number that identifies one or more content frames
			// that use the timecode; this value (a long integer) identifies the first frame that
			// uses the timecode.  For our purposes this will probably always be zero, but it can't
			// hurt to go the full 9.
			int frameNumber = theTimeCoder.toFrameNumber (myTCTime, myTCDef);
			int[] frameNumberAr = { frameNumber };
			QTHandle myFrameNumHandle = new QTHandle (4, false);
			myFrameNumHandle.copyFromArray (0, frameNumberAr, 0, 1);

			// create and configure a new timecode description
			TimeCodeDescription myTCDescription = new TimeCodeDescription ();
			myTCDescription.setTimeCodeDef (myTCDef);			

			// edit the track media
			theTCMedia.beginEdits();	
			
				// since we created the track with the same timescale as the movie,
				// we don't need to convert the duration
				theTCMedia.addSample (myFrameNumHandle, 
										0, 
										myFrameNumHandle.getSize(), 
										theMovie.getDuration(), 
										myTCDescription, 
										1, 
										0);
			theTCMedia.endEdits();	
			
			theTCTrack.insertMedia (0, 0, theMovie.getDuration(), 1.0F);
			
			// this code saves the TimeCode to the movie
		/*
			OpenMovieFile outStream = OpenMovieFile.asWrite (qtf); 
			theMovie.addResource (outStream, movieInDataForkResID, qtf.getName());
			outStream.close();
		*/
		
			// Make the timecode visible
			int tcFlags = theTimeCoder.getFlags();
			tcFlags |= StdQTConstants.tcdfShowTimeCode;
			theTimeCoder.setFlags (tcFlags, StdQTConstants.tcdfShowTimeCode);
			
			changedMovie ();
		} catch (QTException err) {
			err.printStackTrace();
		}
	}

	public void deleteTimeCodeTracks () {
		try {
			Track myTrack = null;
			do {
				myTrack = theMovie.getIndTrackType (1, StdQTConstants.timeCodeMediaType, 
														StdQTConstants.movieTrackMediaType );
				if (myTrack != null) 
					theMovie.removeTrack( myTrack );

			} while (myTrack != null);
			
			// if you previous saved the time code to the movie
			// removing the time code track you also need to update the movie file
		/*
			OpenMovieFile outStream = OpenMovieFile.asWrite (qtf); 
			theMovie.addResource (outStream, movieInDataForkResID, qtf.getName());
			outStream.close();
		*/
			
			changedMovie();
		} catch (QTException err) {
			err.printStackTrace();
		}
	}
	
	private void changedMovie () throws QTException {
		// tell the controller that we have changed the movie
		mc.movieChanged();
		
		// tell the QTCanvas that we have changed the MovieController/QTPlayer client's actual size
		// this is a different size because we've added the time code to the bottom of the movie
		QDRect mcRect = mc.getBounds();
		myQTCanvas.clientChanged (mcRect.getWidth(), mcRect.getHeight());
		myQTCanvas.invalidate();
		
		// this will resize the frame to the current (new) size of the movie
		// the QTCanvas will be resized as a result of this call
		pack();
	}
}





