//////////

//

//  File:       MyMovieController.java

//

//  Contains:   Implementation file for the MyMovieController class.

//

//  Written by: Apple Developer Technical Support

//

//  Copyright:  © 2001 by Apple Computer, Inc., all rights reserved.

//

//  Change History (most recent first):

//     

//     <1>      9/01/01 srk     first file

//

//////////

/*

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*/

import com.apple.cocoa.foundation.*;

import com.apple.cocoa.application.*;

import quicktime.std.movies.Movie.*;

import quicktime.std.movies.media.*;

import quicktime.QTException.*;

import quicktime.QTSession.*;

import quicktime.std.clocks.*;

public class MyMovieController extends NSObject {

    private NSTimer     updateButtonTimer;

    private boolean     isMoviePlaying;

    private float       moviePlaybackRate;

    private NSSelector  playSelector,stopSelector;

    private NSButton    goToBeginningButton;

    private NSButton    goToEndButton;

    private NSButton    playButton;

    private NSButton    stepBackButton;

    private NSButton    stepForwardButton;

    private NSSlider    setVolumeSlider;

    private NSWindow    movieWindow;

    private NSMovieView     movieViewObject;

    private NSMenuItem  menuItem_New;

    //////////

    //

    // MyMovieController

    //

    // Default constructor for this class

    //

    //////////

    public MyMovieController()

    {

        super();

    }

    //////////

    //

    // goToBeginning

    //

    // Called when the go to beginning button is pressed

    // We call the NSMovieView gotoBeginning method here

    // to go to the beginning of the movie

    //

    //////////

    public void goToBeginning(Object sender) 

    {

            /* save current movie state */

        saveCurrentMoviePlayingState();

        /* go to the beginning of the movie */

        movieViewObject.gotoBeginning(sender);

        /* restore movie state */

        restoreMoviePlayingState(sender);

    }

    //////////

    //

    // goToEnd

    //

    // Called when the go to beginning button is pressed

    // We call the NSMovieView goToEnd method here to go

    // to the end of the movie

    //

    //////////

    public void goToEnd(Object sender)

    {

        /* go to the end of the movie */

        movieViewObject.gotoEnd(sender);

    }

    //////////

    //

    // newWindow

    //

    // Called when the "New" menu item in the file

    // menu is selected. We simply display the 

    // window by making it visible and bringing it

    // to the front.

    //

    //////////

    public void newWindow(Object sender)

    {

        showTheWindow(movieWindow);

    }

    //////////

    //

    // stop

    //

    // Called when the stop button is pressed.

    // We call the NSMovieView stop method to

    // stop the movie

    //

    //////////

    public void stop(Object sender)

    {

        /* stop the movie */

        movieViewObject.stop(sender);

        /* adjust the play button state */

        resetPlayButtonForMovieStopState(sender);

    }

    //////////

    //

    // play

    //

    // Called when the play button is pressed.

    // We call the NSMovieView start method to

    // play the movie

    //

    //////////

    public void play(Object sender)

    {

        try {        

                /* is the movie currently playing? */

                if (movieViewObject.isPlaying())

                {

                    /* yes, so stop it */

                    movieViewObject.stop(sender);

                }

                else    /* movie is not currently playing */

                {

                    /* go ahead and start it playing */

                    movieViewObject.start(sender);

                    /* change the button text to "pause" */

                    playButton.setTitle("||");

            }

            /* set the button action method so the next

                time it is invoked, our "stop" method

                will instead be called */

            playButton.setAction(stopSelector);

        } 

        catch (Exception e) 

        {

            e.printStackTrace();

        };

    }

    //////////

    //

    // setVolume

    //

    // Called when the volume slider is pressed.

    // We call the Movie toolbox SetMovieVolume

    // function method to adjust the movie volume.

    //

    //////////

    public void setVolume(Object sender)

    {

        try 

        {

            /* set the movie volume to correspond to the

                current value of the slider */

            movieViewObject.setVolume(setVolumeSlider.floatValue());

        } 

        catch (Exception e) 

        {

            e.printStackTrace();

        };

    }

    //////////

    //

    // stepBack

    //

    // Called when the step-back button is pressed.

    // We call the NSMovieView function setpBack

    // to step the movie.

    //

    //////////

    public void stepBack(Object sender)

    {

        /* save the current movie play state */

        saveCurrentMoviePlayingState();

        /* step the movie back */

        movieViewObject.stepBack(sender);

        /* restore the movie play state */

        restoreMoviePlayingState(sender);

    }

    //////////

    //

    // stepForward

    //

    // Called when the step-forward button is pressed.

    // We call the NSMovieView function stepForward

    // to step the movie.

    //

    //////////

    public void stepForward(Object sender)

    {

        try

        {        

            /* save the current play state */

            saveCurrentMoviePlayingState();

            /* step the movie forward */

            movieViewObject.stepForward(sender);

            /* restore the movie play state */

            restoreMoviePlayingState(sender);

        } 

        catch (Exception e) 

        {

            e.printStackTrace();

        };

    }

    //////////

    //

    // resetPlayButtonForMovieStopState

    //

    // This method adjusts the play button text

    // and action method so the next time it

    // is pressed the "play" method is invoked

    //

    //////////

    public void resetPlayButtonForMovieStopState(Object sender)

    {

        /* reset button text to "play" text */

        playButton.setTitle(">");

        /* reset button action method to our "play" method

            so the next time the button is pressed this

            method will instead be invoked */

        playButton.setAction(playSelector);

    }

    //////////

    //

    // showTheWindow

    //

    // This method is used to make a window

    // visible and bring it to the front

    //

    //////////

    public void showTheWindow(NSWindow window)

    {

        /* is the window visible? */

        if (!window.isVisible())

        {

            /* window is not visible, so let's make it visible */

            window.setFrame(window.frame(), true);

        }

        /* make the window accept keys, and make it the

            front window */

        window.makeKeyAndOrderFront(menuItem_New);

    }

    //////////

    //

    // awakeFromNib

    //

    // Called after all our objects are unarchived and

    // connected but just before the interface is made visible

    // to the user. We will do custom initialization of our

    // objects here.

    //

    //////////

    void awakeFromNib()

    {

        try

        {

            /* retrieve our movie file from our bundle resource */

            String filePath = NSBundle.mainBundle().pathForResource("MovieFile", "mov");

            /* create an NSMovie object from our QuickTime movie */

            NSMovie theMovie = new NSMovie(new java.net.URL("file://" + filePath),true);

            /* assign the NSMovie object (which we made above) for our NSMovieView object */

            movieViewObject.setMovie(theMovie);

            /* set the high/low ranges for our volume slider */

            setVolumeSlider.setMaxValue(1.0);

            setVolumeSlider.setMinValue(0.0);

            menuItem_New.setEnabled(true);

            /* set the volume slider to the maximum volume */

            setVolumeSlider.setFloatValue(0.5F);

            /* we'll use these play selectors to toggle modes for

                our "play" button */

            playSelector = new NSSelector("play", new Class[] {getClass()} );

            stopSelector = new NSSelector("stop", new Class[] {getClass()} );

            /* create a timer which we'll use to update our "play" button text */

            updateButtonTimer = new NSTimer(

                                            2.0,

                                            this,

                                            new NSSelector("timerFired", new Class[] {getClass()} ),

                                            null,

                                            true);

            /* register our NSTimer for the default run loop */

            NSRunLoop.currentRunLoop().addTimerForMode(updateButtonTimer, NSRunLoop.DefaultRunLoopMode);

            /* we want notification when the application quits

                so we can clean up */

            NSNotificationCenter.defaultCenter().addObserver(this,

                                                        new NSSelector("applicationWillTerminate", new Class[] {NSNotification.class}),

                                                        "NSApplicationWillTerminateNotification",

                                                        null);

        } 

        catch (Exception e) 

        {

            e.printStackTrace();

        };

    }

    //////////

    //

    // timerFired

    //

    // When our timer fires we'll use the opportunity

    // to adjust the play button text for the stop state

    //

    //////////

   public void timerFired(Object sender)

    {

        /* is the movie done playing? */

        if (!movieViewObject.isPlaying())

        {

            /* movie is done - so reset play button text */

            resetPlayButtonForMovieStopState(sender);

        }

    }

    //////////

    //

    // applicationWillTerminate

    //

    // Called when the application is ready to quit.

    // We'll use this opportunity to clean up.

    //

    //////////

    public void applicationWillTerminate(NSNotification notification)

    {

        playSelector = null;

        stopSelector = null;

        NSRunLoop.currentRunLoop().removeTimerForMode(updateButtonTimer,NSRunLoop.DefaultRunLoopMode);

    }

    //////////

    //

    // saveCurrentMoviePlayingState

    //

    // Save the current movie playing state. This is

    // necessary because certain operations (step

    // forward, etc.) will stop the movie, and we

    // want to preserve the state between these

    // operations.

    //

    //////////

    public void saveCurrentMoviePlayingState()

    {

        isMoviePlaying = movieViewObject.isPlaying();

        moviePlaybackRate = movieViewObject.rate();

    }

    //////////

    //

    // restoreMoviePlayingState

    //

    // Restore the current movie playing state. This is

    // necessary because certain operations (step

    // forward, etc.) will stop the movie, and we

    // want to preserve the state between these

    // operations.

    //

    //////////

    public void restoreMoviePlayingState(Object sender)

    {

        if (isMoviePlaying)

        {

            movieViewObject.start(sender);

        }

        movieViewObject.setRate(moviePlaybackRate);

    }

}