/*

File: MovieCallbacks.java

Abstract: Allows Java code to be called at specified points during movie playback. 

Version: 1.2

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*/

import java.awt.*;

import java.awt.event.*;

import java.io.IOException;

import quicktime.*;

import quicktime.io.*;

import quicktime.std.movies.*;

import quicktime.app.view.*;

import quicktime.std.*;

import quicktime.vr.*;

import quicktime.util.*;

public class MovieCallbacks extends Frame implements Errors {   

    public static void main (String args[]) {

        try {

            System.out.println ("Open a Multi-node VR Movie...");

            QTSession.open (QTSession.kInitVR);

                //register handler for QTRuntimeExceptions

            QTRuntimeException.registerHandler (new Handler());

            MovieCallbacks pm = new MovieCallbacks("QT in Java");

            pm.pack();

            pm.show();

            pm.toFront();

        } catch (QTException e) {

            if (e.errorCode() != Errors.userCanceledErr)

                e.printStackTrace();

            else

                System.out.println ("UserCanceled : Application needs media file to run. Quitting....");

            QTSession.close();

            System.exit(1);

        }

    }

    QTVRInstance myQTVRInstance;

    Movie myMovie;

    MovieController myMovieController;

    MovieCallbacks (String title) throws QTException {

        super (title);

        QTFile qtFile = QTFile.standardGetFilePreview(QTFile.kStandardQTFileTypes);

        OpenMovieFile movieFile = OpenMovieFile.asRead(qtFile);

        myMovie = Movie.fromFile (movieFile);

        myMovieController = new MovieController (myMovie);

        myMovieController.setKeysEnabled (true);

        Track track = myMovie.getQTVRTrack (1);

        if (track != null) {    //setup VR callbacks

            myQTVRInstance = new QTVRInstance (track, myMovieController);

            myQTVRInstance.setEnteringNodeProc (new EnteringNode(), 0);

            myQTVRInstance.setLeavingNodeProc (new LeavingNode(), 0);

            myQTVRInstance.setMouseOverHotSpotProc (new HotSpot(), 0);

            Interceptor ip = new Interceptor();

            myQTVRInstance.installInterceptProc (QTVRConstants.kQTVRSetPanAngleSelector, ip, 0);

            myQTVRInstance.installInterceptProc (QTVRConstants.kQTVRSetTiltAngleSelector, ip, 0);

            myQTVRInstance.installInterceptProc (QTVRConstants.kQTVRSetFieldOfViewSelector, ip, 0);

            myQTVRInstance.installInterceptProc (QTVRConstants.kQTVRSetViewCenterSelector, ip, 0);

            myQTVRInstance.installInterceptProc (QTVRConstants.kQTVRTriggerHotSpotSelector, ip, 0);

            myQTVRInstance.installInterceptProc (QTVRConstants.kQTVRGetHotSpotTypeSelector, ip, 0);

        }

        // set up movie drawing callback

        myMovie.setDrawingCompleteProc (StdQTConstants.movieDrawingCallWhenChanged, new MovieDrawing());

        // set up action filter

        myMovieController.setActionFilter (new PMFilter(), false);  //don't do idle events

                QTComponent mComponent = QTFactory.makeQTComponent(myMovieController);

                add((Component) mComponent);

        addWindowListener(new WindowAdapter () {

            public void windowClosing (WindowEvent e) {

                try {   // remove callbacks we instantiated

                    if (myQTVRInstance != null) {

                        myQTVRInstance.removeEnteringNodeProc();

                        myQTVRInstance.removeLeavingNodeProc();

                        myQTVRInstance.removeMouseOverHotSpotProc();

                        myQTVRInstance.removeInterceptProc (QTVRConstants.kQTVRSetPanAngleSelector);

                        myQTVRInstance.removeInterceptProc (QTVRConstants.kQTVRSetTiltAngleSelector);

                        myQTVRInstance.removeInterceptProc (QTVRConstants.kQTVRSetFieldOfViewSelector);

                        myQTVRInstance.removeInterceptProc (QTVRConstants.kQTVRSetViewCenterSelector);

                        myQTVRInstance.removeInterceptProc (QTVRConstants.kQTVRTriggerHotSpotSelector);

                        myQTVRInstance.removeInterceptProc (QTVRConstants.kQTVRGetHotSpotTypeSelector);

                    }

                    myMovie.removeDrawingCompleteProc();

                    myMovieController.removeActionFilter();

                } catch (QTException ex) {}

                QTSession.close();

                dispose();

            }

            public void windowClosed (WindowEvent e) { 

                System.exit(0);

            }

        });

    }

    static class MovieDrawing implements MovieDrawingComplete {

        public int execute (Movie m) {

            System.out.println ("drawing:" + m);

            return 0;

        }

        public int execute (Movie m, int action, StringHandle sh) {

            System.out.println (m + ",action=" + action);

            return 0;

        }

    }   

    static class EnteringNode implements QTVREnteringNode {

        public int execute (QTVRInstance vr, int nodeID) {

            System.out.println (vr + ",entering:" + nodeID);

            return 0;

        }

    }

    static class LeavingNode implements QTVRLeavingNode {

        public int execute (QTVRInstance vr, int fromNodeID, int toNodeID, boolean[] cancel) {

            System.out.println (vr + ",leaving:" + fromNodeID + ",entering:" + toNodeID);

            // no error and Don't cancel leaving node

                // cancel[0] = true; -> this would cancel leaving the fromNode

            return 0;

        }

    }

    static class HotSpot implements QTVRMouseOverHotSpot {

        public int execute (QTVRInstance vr, int hotSpotID, int flags) {

            System.out.println (vr + ",hotSpot:" + hotSpotID + ",flags=" + flags);

            return 0;

        }

    }

    static class Interceptor implements QTVRInterceptor {

        public boolean execute (QTVRInstance vr, QTVRInterceptRecord qtvrMsg) {

            System.out.println (vr + "," + qtvrMsg);

            return false;   //dont cancel default execution

        }

    }

    static class PMFilter extends ActionFilter {

        public boolean execute (MovieController mc, int action) { 

            System.out.println (mc + "," + "action:" + action);

            return false; 

        }

        public boolean execute (MovieController mc, int action, float value) {

            System.out.println (mc + "," + "action:" + action + ",value=" + value);

            return false; 

        }

    }

    //_________________________ Runtime Error Handling

    static class Handler implements QTRuntimeHandler {

        public void exceptionOccurred (QTRuntimeException e, Object eGenerator, String methodNameIfKnown, boolean unrecoverableFlag) {

            System.out.println (eGenerator + "," + methodNameIfKnown + ",unrecoverable=" + unrecoverableFlag);

            e.printStackTrace();

            throw e;    // we don't handle this exception - just print stack trace and throw it

        }

    }

}