/*

File:           MovieDocument.m

Abstract:       Demonstrates how to build and extend a QuickTime media player 

                application, using the new QTKit framework available in QuickTime 7.

Version:        1.0

© Copyright 2005 Apple Computer, Inc. All rights reserved.

IMPORTANT:  This Apple software is supplied to 

you by Apple Computer, Inc. ("Apple") in 

consideration of your agreement to the following 

terms, and your use, installation, modification 

or redistribution of this Apple software 

constitutes acceptance of these terms.  If you do 

not agree with these terms, please do not use, 

install, modify or redistribute this Apple 

software.

In consideration of your agreement to abide by 

the following terms, and subject to these terms, 

Apple grants you a personal, non-exclusive 

license, under Apple's copyrights in this 

original Apple software (the "Apple Software"), 

to use, reproduce, modify and redistribute the 

Apple Software, with or without modifications, in 

source and/or binary forms; provided that if you 

redistribute the Apple Software in its entirety 

and without modifications, you must retain this 

notice and the following text and disclaimers in 

all such redistributions of 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 COMBINATION WITH YOUR PRODUCTS.

IN NO EVENT SHALL APPLE BE LIABLE FOR ANY 

SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL 

DAMAGES (INCLUDING, BUT NOT LIMITED TO, 

PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 

OF USE, DATA, OR PROFITS; OR BUSINESS 

INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, 

REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF 

THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER 

UNDER THEORY OF CONTRACT, TORT (INCLUDING 

NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN 

IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF 

SUCH DAMAGE.

*/

#import "MovieDocument.h"

#import <QTKit/QTKit.h>

#pragma mark ********* defines *********

#define kDefaultWidthForNonvisualMovies 320

@implementation MovieDocument

// Class methods ---

+ (id)movieDocumentWithMovie:(QTMovie *)movie

{

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

}

// Inits ---

-(void)awakeFromNib

{

}

- (id)initWithMovie:(QTMovie *)movie

{

    [super init];

    // init

    [self setFileType:@"MovieDocument"];

    [self setMovie:movie];

    if (mMovie == nil)

    {

        [self release];

        self = nil;

    }

    return self;

}

- (void)dealloc

{

    [[NSNotificationCenter defaultCenter] removeObserver:self];

    [mMovieView setMovie:nil];

    [self setMovie:nil];

    [super dealloc];

}

#pragma mark ********* NSMenu validation protocol *********

- (BOOL)validateMenuItem:(NSMenuItem *)menuItem

{

    BOOL    valid = NO;

    SEL     action;

    // init

    action = [menuItem action];

    // validate

    if (action == @selector(doSetFillColorPanel:))

        valid = YES;

    else if (action == @selector(doShowController:))

    {

        [menuItem setState:([mMovieView isControllerVisible] ? NSOnState : NSOffState)];

        valid = YES;

    }

    else if (action == @selector(doPreserveAspectRatio:))

    {

        [menuItem setState:([mMovieView preservesAspectRatio] ? NSOnState : NSOffState)];

        valid = (mMovie != nil);

    }

    else if ((action == @selector(doLoop:)) && mMovie)

    {

        [menuItem setState:([[mMovie attributeForKey:QTMovieLoopsAttribute] boolValue] ? NSOnState : NSOffState)];

        valid = YES;

    }

    else if ((action == @selector(doLoopPalindrome:)) && mMovie)

    {

        if ([[mMovie attributeForKey:QTMovieLoopsAttribute] boolValue])

        {

            [menuItem setState:([[mMovie attributeForKey:QTMovieLoopsBackAndForthAttribute] boolValue] ? NSOnState : NSOffState)];

            valid = YES;

        }

    }

    else if (action == @selector(doClone:))

        valid = (mMovie != nil);

    else if (action == @selector(selectAll:))

        valid = (mMovie != nil);

    else if (action == @selector(setSelectionToNone:))

        valid = (mMovie != nil);

    else

        valid = [super validateMenuItem:menuItem];

    return valid;

}

#pragma mark ********* Setters **************

// Setters ---

- (void)setMovie:(QTMovie *)movie

{

    [movie retain];

    [mMovie release];

    mMovie = movie;

}

- (void)sizeWindowToMovie:(NSNotification *)notification

{

    NSRect  currWindowBounds, newWindowBounds;

    NSPoint topLeft;

    static BOOL nowSizing = NO;

    if (nowSizing)

        return;

    nowSizing = YES;

    // get the current location and size of the movie window, so we can keep the top-left corner pegged, i.e. fixed

    currWindowBounds = [[mMovieView window] frame];

    topLeft.x = currWindowBounds.origin.x;

    topLeft.y = currWindowBounds.origin.y + currWindowBounds.size.height;

    NSSize contentSize = [[mMovie attributeForKey:QTMovieCurrentSizeAttribute] sizeValue];

    if ([mMovieView isControllerVisible])

    {

        // adjust for movie controller height

        contentSize.height += [mMovieView controllerBarHeight];

        // take into account size difference between movie view

        // and enclosing window

        contentSize.width += (currWindowBounds.size.width - contentSize.width);

    }

    if (contentSize.width == 0)

        contentSize.width = currWindowBounds.size.width;

    newWindowBounds = [[mMovieView window] frameRectForContentRect:NSMakeRect(0, 0, contentSize.width, contentSize.height)];

    [[mMovieView window] setFrame:NSMakeRect(topLeft.x, topLeft.y - newWindowBounds.size.height, newWindowBounds.size.width, newWindowBounds.size.height) display:YES];

    nowSizing = NO;

}

#pragma mark ********* NSDocument overrides **************

// NSDocument overrides ---

- (NSString *)windowNibName

{

    return @"MovieDocument";

}

- (void)windowControllerDidLoadNib:(NSWindowController *)windowController

{

    // set up the movie view

    if (mMovie)

    {

        NSSize contentSize = [[mMovie attributeForKey:QTMovieNaturalSizeAttribute] sizeValue];

        [mMovieView setMovie:mMovie];

        if ([mMovieView isControllerVisible])

        {

            contentSize.height += [mMovieView movieControllerBounds].size.height;

            if (contentSize.width == 0)

            {

                contentSize.width = kDefaultWidthForNonvisualMovies;

            }

        }

        [[mMovieView window] setContentSize:contentSize];

    }

    else

        [mMovieView setMovie:[QTMovie movie]];

    // set the editable state

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

    // watch for movie resizings

    if (mMovie)

    {

        [[NSNotificationCenter defaultCenter] addObserver:self 

                                                 selector:@selector(sizeWindowToMovie:) 

                                                     name:QTMovieSizeDidChangeNotification 

                                                   object:mMovie];

    }

}

- (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])

    {

        if ([type isEqualTo:@"MovieDocumentData"])

        {

            NSData  *data = [NSData dataWithContentsOfFile:fileName];

            [self setMovie:[QTMovie movieWithData:data error:nil]];

        }

        else

        {

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

        }

        success = (mMovie != nil);

    }

    return success;

}

- (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)printShowingPrintPanel:(BOOL)showPanels

{

    NSPrintOperation *printOperation;

    // init

    printOperation = [NSPrintOperation printOperationWithView:mMovieView printInfo:[self printInfo]];

    [printOperation setShowPanels:showPanels];

    // print

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

}

#pragma mark ********* actions **************

// Actions ---

- (IBAction)doSetFillColorPanel:(id)sender

{

    NSColorPanel *colorPanel;

    // init

    colorPanel = [NSColorPanel sharedColorPanel];

    [colorPanel setAction:@selector(doSetFillColor:)];

    [colorPanel setTarget:self];

    [colorPanel setColor:[mMovieView fillColor]];

    // run the panel

    [colorPanel makeKeyAndOrderFront:nil];

}

- (IBAction)doSetFillColor:(id)sender

{

    // update the fill color

    [mMovieView setFillColor:[sender color]];

}

- (IBAction)doShowController:(id)sender

{

    // toggle the controller visibility

    [mMovieView setControllerVisible:([sender state] == NSOffState)];

}

- (IBAction)doPreserveAspectRatio:(id)sender

{

    // toggle the aspect ratio preservation

    [mMovieView setPreservesAspectRatio:([sender state] == NSOffState)];

}

- (IBAction)doLoop:(id)sender

{

    // toggle looping

    [mMovie setAttribute:[NSNumber numberWithBool:([sender state] == NSOffState)] forKey:QTMovieLoopsAttribute];

}

- (IBAction)doLoopPalindrome:(id)sender

{

    // toggle palindrome looping

    [mMovie setAttribute:[NSNumber numberWithBool:([sender state] == NSOffState)] forKey:QTMovieLoopsBackAndForthAttribute];

}

- (IBAction)doClone:(id)sender

{

    MovieDocument *movieDocument;

    // init

    movieDocument = [MovieDocument movieDocumentWithMovie:[[mMovie copy] autorelease]];

    // set up the document

    if (movieDocument)

    {

        // add the document

        [[NSDocumentController sharedDocumentController] addDocument:movieDocument];

        // set up the document

        [movieDocument makeWindowControllers];

        [movieDocument showWindows];

    }

}

@end