/*

        File: AppController.m

    Abstract: View and Controller classes.

     Version: 1.1

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    The Apple Software is provided by Apple on an "AS IS" basis.  APPLE

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    Copyright (C) 2009 Apple Inc. All Rights Reserved.

*/

#import "AppController.h"

@implementation AppView

- (void) setLoopTime:(NSTimeInterval)loopTime

{

    _loopTime = loopTime;

}

- (NSTimeInterval) loopTime

{

    return _loopTime;

}

- (void) mouseDragged:(NSEvent*)theEvent

{

    NSPoint                             mouse = [self convertPoint:[theEvent locationInWindow] fromView:nil];

    NSRect                              bounds = [self bounds];

    /* If the composition has X & Y inputs pass the mouse coordinates */

    if([[self inputKeys] containsObject:QCCompositionInputXKey] && [[self inputKeys] containsObject:QCCompositionInputYKey]) {

        mouse = [[self window] mouseLocationOutsideOfEventStream];

        mouse = [self convertPoint:mouse fromView:nil];

        [self setValue:[NSNumber numberWithFloat:(mouse.x / bounds.size.width)] forInputKey:QCCompositionInputXKey];

        [self setValue:[NSNumber numberWithFloat:(mouse.y / bounds.size.height)] forInputKey:QCCompositionInputYKey];

    }

}

- (BOOL) renderAtTime:(NSTimeInterval)time arguments:(NSDictionary*)arguments

{

    /* If we have a loop time defined, we modify the render time to loop back and forth */

    if(_loopTime > 0.0) {

        time = fmod(time, 2.0 * _loopTime);

        if(time > _loopTime)

        time = 1.0 - time + _loopTime;

    }

    return [super renderAtTime:time arguments:arguments];

}

@end

@implementation AppController

- (void) applicationDidFinishLaunching:(NSNotification*)notification

{

    QCCompositionPickerPanel*           panel = [QCCompositionPickerPanel sharedCompositionPickerPanel];

    /* We need to allow alpha selection in the color picker */

    [NSColor setIgnoresAlpha:NO];

    /* Configure the composition picker panel */

    [[panel compositionPickerView] setAllowsEmptySelection:YES];

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

    [[panel compositionPickerView] setShowsCompositionNames:YES];

    [[panel compositionPickerView] setMaxAnimationFrameRate:30.0];

    /* Set default values for the image input parameters */

    [[panel compositionPickerView] setDefaultValue:[NSImage imageNamed:@"Source Image"] forInputKey:QCCompositionInputImageKey];

    [[panel compositionPickerView] setDefaultValue:[NSImage imageNamed:@"Source Image"] forInputKey:QCCompositionInputSourceImageKey];

    [[panel compositionPickerView] setDefaultValue:[NSImage imageNamed:@"Target Image"] forInputKey:QCCompositionInputDestinationImageKey];

    /* Show composition picker panel*/

    [panel setFrameOrigin:[window frame].origin];

    [panel orderFront:nil];

    /* Register for composition picker panel notifications */

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

}

- (IBAction) selectProtocol:(id)sender

{

    QCCompositionPickerPanel*           panel = [QCCompositionPickerPanel sharedCompositionPickerPanel];

    NSString*                           protocol;

    /* Convert the composition protocol index to a protocol name */

    switch([(NSMatrix*)sender selectedTag]) {

        case 0: protocol = QCCompositionProtocolGraphicAnimation; break;

        case 1: protocol = QCCompositionProtocolImageFilter; break;

        case 2: protocol = QCCompositionProtocolGraphicTransition; break;

    }

    /* Update transition mode */

    _transitionMode = ([(NSMatrix*)sender selectedTag] == 2);

    /* Unload the current composition on the QCView */

    [qcView unloadComposition];

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

    /* Make sure the panel is visible in case the user had closed it */

    if(![panel isVisible])

    [panel performSelector:@selector(orderFront:) withObject:nil afterDelay:0.0];

}

- (IBAction) toggleFullScreen:(id)sender

{

    /* Toggle full-screen state */

    if([qcView isInFullScreenMode])

    [qcView exitFullScreenModeWithOptions:nil];

    else

    [qcView enterFullScreenMode:[[NSScreen screens] objectAtIndex:0] withOptions:nil];

}

- (void) _didSelectComposition:(NSNotification*)notification

{

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

    /* Check if a composition is selected in the picker */

    if(composition == nil)

    [qcView unloadComposition];

    else {

        /* Load the newly selected composition in the QCView */

        [qcView stopRendering];

        [qcView loadComposition:composition];

        /* If we are displaying a transition, loop the playback time between 0.0 and 1.0 */

        [qcView setLoopTime:(_transitionMode ? 1.0 : 0.0)];

        /* Set the values for the image input parameters  */

        if([[qcView inputKeys] containsObject:QCCompositionInputImageKey])

        [qcView setValue:[NSImage imageNamed:@"Source Image"] forInputKey:QCCompositionInputImageKey];

        if([[qcView inputKeys] containsObject:QCCompositionInputSourceImageKey])

        [qcView setValue:[NSImage imageNamed:@"Source Image"] forInputKey:QCCompositionInputSourceImageKey];

        if([[qcView inputKeys] containsObject:QCCompositionInputDestinationImageKey])

        [qcView setValue:[NSImage imageNamed:@"Target Image"] forInputKey:QCCompositionInputDestinationImageKey];

        /* Start rendering the composition in the QCView */

        [qcView startRendering];

    }

}

- (void) applicationWillTerminate:(NSNotification*)notification

{

    /* Unregister from composition picker panel notifications */

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

}

- (void) windowWillClose:(NSNotification*)notification

{

    /* Quit the application when the window is closed */

    [NSApp terminate:self];

}

@end