/*

     File: MyDocument.m

 Abstract: MyDocument class.

  Version: 1.1

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*/

#import "MyDocument.h"

@implementation MyDocument

- (void) dealloc

{

    /* Unregister from composition picker panel notifications */

    [[NSNotificationCenter defaultCenter] removeObserver:self name:QCCompositionPickerPanelDidSelectCompositionNotification object:nil];

    [super dealloc];

}

- (NSString*) windowNibName

{

    return @"MyDocument";

}

- (void) windowControllerDidLoadNib:(NSWindowController*)aController

{

    QCCompositionPickerPanel*                   panel = [QCCompositionPickerPanel sharedCompositionPickerPanel];

    NSView*                                     contentView = [[aController window] contentView];

    [super windowControllerDidLoadNib:aController];

    /* Make the text view and its scrollview transparent */

    [textView setDrawsBackground:NO];

    [scrollView setDrawsBackground:NO];

    /* Load the RTF data in the text view if available or use some default text */

    if(_rtfData) {

        [textView replaceCharactersInRange:NSMakeRange(0, 0) withRTF:_rtfData];

        [_rtfData release];

    }

    else {

        [textView replaceCharactersInRange:NSMakeRange(0, 0) withString:@"Type some text here or select a composition in the picker..."];

        [textView setTextColor:[NSColor whiteColor]];

        [textView setFont:[NSFont systemFontOfSize:24]];

        [textView setSelectedRange:NSMakeRange(0, [[textView textStorage] length])];

    }

    /* Configure and show the composition picker panel - only the first time this method is ran */

    if(![[[panel compositionPickerView] compositions] count]) {

        [[panel compositionPickerView] setCompositionsFromRepositoryWithProtocol:QCCompositionProtocolGraphicAnimation andAttributes:nil];

        [panel orderFront:nil];

    }

    /* Register for composition picker panel notifications */

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_didSelectComposition:) name:QCCompositionPickerPanelDidSelectCompositionNotification object:nil];

    /* Set up Core Animation */

    [contentView setLayer:[QCCompositionLayer compositionLayerWithComposition:[[panel compositionPickerView] selectedComposition]]];

    [contentView setWantsLayer:YES];

}

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

{

    /* Return the text view contents as RTF data */

    return [[textView textStorage] RTFFromRange:NSMakeRange(0, [[textView textStorage] length]) documentAttributes:nil];

}

- (BOOL) loadDataRepresentation:(NSData*)data ofType:(NSString*)aType

{

    /* Save RTF data for -windowControllerDidLoadNib: */

    _rtfData = [data copy];

    return YES;

}

- (void) _didSelectComposition:(NSNotification*)notification

{

    QCComposition*                      composition = [[notification userInfo] objectForKey:@"QCComposition"];

    NSWindow*                           window = [[[self windowControllers] objectAtIndex:0] window];

    /* Replace the content view of the window with a Quartz Composer layer with the selected composition */

    [[window contentView] setLayer:[QCCompositionLayer compositionLayerWithComposition:composition]];

}

@end

@implementation MyDocument (FirstResponderActions)

- (IBAction) orderFrontFontPanel:(id)sender

{

    [[NSFontManager sharedFontManager] orderFrontFontPanel:sender];

}

- (IBAction) orderFrontCompositionPanel:(id)sender

{

    [[QCCompositionPickerPanel sharedCompositionPickerPanel] orderFront:sender];

}

@end