/*

    File:       MovieDocument.mm

    Abstract:   The NSDocument sublass for a Movie document. Overrides

                the NSDocument methods involving window creation 

                and document reading, writing and printing.

    Version:    1.0

                Originally introduced at WWDC 2004 at Session 214:

                "Programming QuickTime with Cocoa." 

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*/

#import "MovieDocument.h"

@implementation MovieDocument

#pragma mark

#pragma mark ---- Class method ----

+ (id)movieDocumentWithMovie:(QTMovie *)movie

{

    return [[(MovieDocument *)[self alloc] initWithMovie:movie] autorelease];

}

#pragma mark

#pragma mark ---- Init / Dealloc ----

- (id)init

{

    self = [super init];

    if (self) 

    {   // init

        [self setFileType:@"MovieDocument"];

        mMovieWindowController = nil;

        mAudioPropertiesWindowController = nil;

        mAudioExtractionController = nil;

        mAudioContextInsertWindowController = nil;

        mACInsertManager = [[ACInsertManager allocWithZone:[self zone]] initWithMovieDocument:self];

    }

    return self;

}

- (id)initWithMovie:(QTMovie *)movie

{

    self = [self init];

    if (self) 

    {

        [self setMovie:movie];

        if (mMovie == nil)

        {

            [self release];

            self = nil;

        }

    }

    return self;

}

- (void)dealloc

{   

    [self setAudioContextInsertWindowController:nil];

    [self setAudioExtractionController:nil];

    [self setAudioPropertiesWindowController:nil];

    [self setMovieWindowController:nil];

    [mACInsertManager release];

    [self setMovie:nil];

    [super dealloc];

}

#pragma mark

#pragma mark ---- Getters ----

- (QTMovie *)movie

{

    return mMovie;

}

- (MovieWindowController *)movieWindowController

{

    return mMovieWindowController;

}

- (ACInsertWindowController *)acInsertWindowController

{

    return mAudioContextInsertWindowController;

}

- (ACInsertManager *)acInsertManager

{

    return mACInsertManager;

}

#pragma mark

#pragma mark ---- Setters ----

- (void) setMovie:(QTMovie *)movie

{

    [movie retain];

    [mMovie release];

    mMovie = movie;

}

- (void)setMovieWindowController:(MovieWindowController *)windowController

{

    [windowController retain];

    [mMovieWindowController release];

    mMovieWindowController = windowController;

}

- (void)setAudioPropertiesWindowController:(AudioPropertiesInspectorController *)windowController

{

    [windowController retain];

    [mAudioPropertiesWindowController release];

    mAudioPropertiesWindowController = windowController;

}

- (void)setAudioExtractionController:(AudioExtractionController *)windowController

{

    [windowController retain];

    [mAudioExtractionController release];

    mAudioExtractionController = windowController;

}

- (void)setAudioContextInsertWindowController:(ACInsertWindowController *)windowController

{

    [windowController retain];

    [mAudioContextInsertWindowController release];

    mAudioContextInsertWindowController = windowController;

}

- (void)showAudioPropertiesWindow:(id)sender

{

    // If an Audio Properties Window Controller doesn't exist yet, time to create it

    // We'll hold on to this instance, release it when this document is dealloc'ed.

    if (!mAudioPropertiesWindowController) 

    {

        AudioPropertiesInspectorController *aPropController = [[AudioPropertiesInspectorController allocWithZone:[self zone]] init];

        [self setAudioPropertiesWindowController:aPropController];

        [aPropController release];

    }

    [mAudioPropertiesWindowController showWindow:sender];

}

-(void)showAudioExtractionWindow:(id)sender

{

    // If an Audio Extraction Window Controller doesn't exist yet, time to create it

    // We'll hold on to this instance, release it when this document is dealloc'ed.

    if (!mAudioExtractionController) 

    {

        AudioExtractionController *aExtractionController = [[AudioExtractionController allocWithZone:[self zone]] init];

        [self setAudioExtractionController:aExtractionController];

        [aExtractionController release];

    }

    [mAudioExtractionController showWindow:sender];

}

-(void)showAudioContextInsertWindow:(id)sender

{

    // If the Audio Context Inserts window is already visible, do nothing

    // Else, create a new instance of the window every time we display the window.

    if (! [[mAudioContextInsertWindowController window] isVisible]) 

    {

        ACInsertWindowController *insertController = [[ACInsertWindowController allocWithZone:[self zone]] init];

        [insertController showWindow:sender];

        [self setAudioContextInsertWindowController:insertController]; // releases previous window controller

        [insertController release];

    }

}

#pragma mark

#pragma mark ---- NSDocument overrides ----

- (void)windowControllerDidLoadNib:(NSWindowController *)windowController

{

    // set the editable state

    [mMovie setAttribute:[NSNumber numberWithBool:YES] forKey:QTMovieEditableAttribute];

}

// Override this method to create our main movie window controller

// The other window controllers (property window, extraction window, inserts window)

// will be created lazily and are not added using addWindowController: because we 

// don't want them to be always displayed when the document is open.

- (void) makeWindowControllers

{

    MovieWindowController *movieWindowController;

    // movie window

    movieWindowController = [[MovieWindowController allocWithZone:[self zone]] init];

    [self addWindowController:movieWindowController];       

    [self setMovieWindowController:movieWindowController];  

    [movieWindowController release];

}

- (BOOL)writeWithBackupToFile:(NSString *)fullDocumentPath ofType:(NSString *)type saveOperation:(NSSaveOperationType)saveOperation

{

    BOOL success = NO;

    // update/save

    if (saveOperation == NSSaveOperation)

    {

        success = [mMovie updateMovieFile];

    }

    else

    {

        success = [super writeWithBackupToFile:fullDocumentPath ofType:type saveOperation:saveOperation];

    }

    return success;

}

- (NSData *)dataRepresentationOfType:(NSString *)docType

{

    return [mMovie movieFormatRepresentation];

}

- (BOOL)readFromFile:(NSString *)fileName ofType:(NSString *)type

{

    BOOL    success = NO;

    // read the movie

    if ([QTMovie canInitWithFile:fileName])

    {

        [self setMovie:((QTMovie *)[QTMovie movieWithFile:fileName error:nil])];

        success = (mMovie != nil);

    }

    return success;

}

- (id)openDocumentWithContentsOfFile:(NSString *)fileName display:(BOOL)displayFlag

{

    NSDocumentController *sharedDocController = [NSDocumentController sharedDocumentController];

    MovieDocument *movieDocument = [sharedDocController documentForFileName:fileName];

    // first check whether we already have a document for this file

    if (movieDocument)

    {   // we've got one, just bring it forward

        if (displayFlag)

        {

            [movieDocument showWindows];

        }

    }

    else 

    {   // we must create a new document.

        // we always create a movie document regardless of type

        // init

        movieDocument = [[[MovieDocument allocWithZone:[self zone]] initWithContentsOfFile:fileName ofType:@"mov"] autorelease];

        // set up the document

        if (movieDocument)

        {

            // add the document

            [sharedDocController addDocument:movieDocument];

            // set up the document

            if ([sharedDocController shouldCreateUI])

            {

                [movieDocument makeWindowControllers];

                if (displayFlag)

                {

                    [movieDocument showWindows];

                }

            }

        }

    }

    return movieDocument;

}

- (BOOL)panel:(id)sender shouldShowFilename:(NSString *)filename 

{

    BOOL isDir = NO;

    [[NSFileManager defaultManager] fileExistsAtPath:filename isDirectory:&isDir];

    if (isDir)

    {

        return YES;

    }

    else

    {

        return [QTMovie canInitWithFile:filename];

    }

}

- (void)openDocument:(id)sender {

    NSOpenPanel *openPanel = [NSOpenPanel openPanel];

    [openPanel setDelegate:self];

    [openPanel setAllowsMultipleSelection:NO];

    // files are filtered through the panel:shouldShowFilename: method above

    if ([openPanel runModalForTypes:nil] == NSOKButton) 

    {

        [self openDocumentWithContentsOfFile:[[openPanel filenames] lastObject] display:YES];

    }

}

- (BOOL)application:(NSApplication *)theApplication openFile:(NSString *)filename

{

    return (nil != [self openDocumentWithContentsOfFile:filename display:YES]);

}

- (void)printShowingPrintPanel:(BOOL)showPanels

{

    NSPrintOperation *printOperation;

    // init

    printOperation = [NSPrintOperation printOperationWithView:[mMovieWindowController movieView] printInfo:[self printInfo]];

    [printOperation setShowPanels:showPanels];

    // print

    [self runModalPrintOperation:printOperation delegate:nil didRunSelector:nil contextInfo:nil];

}

- (BOOL)readFromURL:(NSURL *)url ofType:(NSString *)type

{

    BOOL    success = NO;

    // read the movie

    if ([QTMovie canInitWithURL:url])

    {

        [self setMovie:((QTMovie *)[QTMovie movieWithURL:url error:nil])];

        success = (mMovie != nil);

    }

    return success;

}

@end