/*

 Copyright (C) 2017 Apple Inc. All Rights Reserved.

 See LICENSE.txt for this sample’s licensing information

 Abstract:

 This is the completion of the slide entity from our Core Data model. We needed to create a class in order for our entity to return CGRect data. We accomplish this by using the methods in "Core Data Programming Guide: Non-Standard Persistent Attributes"

 */

#import "LTSlide.h"

@implementation LTSlide

// We need to @synthetize the iVars for value properties.

@synthesize frame = ivar_frame;

@synthesize photoFrame = ivar_photoFrame;

// Cribbed from "Core Data Programming Guide"

- (CGRect)_rectForIvar:(CGRect *)pIvarRect forKey:(NSString *)key {

    [self willAccessValueForKey:key];

    CGRect rect = *pIvarRect;

    [self didAccessValueForKey:key];

    if(rect.size.width == 0.0) {

        NSString *rectAsString = [self valueForKey:[NSString stringWithFormat:@"%@AsString", key]];

        if(rectAsString != nil) {

            *pIvarRect = NSRectToCGRect(NSRectFromString(rectAsString));

        }

    }

    return *pIvarRect;

}

- (void)awakeFromInsert

{

    [super awakeFromInsert];

    ivar_frame = CGRectZero;

    ivar_photoFrame = CGRectZero;

}

- (void)_setRect:(CGRect)rect forIvar:(CGRect *)pIvarRect forKey:(NSString *)key {

    [self willChangeValueForKey:key];

    *pIvarRect = rect;

    [self didChangeValueForKey:key];

    NSString *rectAsString = NSStringFromRect(NSRectFromCGRect(*pIvarRect));

    [self setValue:rectAsString forKey:[NSString stringWithFormat:@"%@AsString", key]];

}

- (CGRect)frame {

    return [self _rectForIvar:&ivar_frame forKey:@"frame"];

}

- (void)setFrame:(CGRect)rect {

    [self _setRect:rect forIvar:&ivar_frame forKey:@"frame"];

}

- (CGRect)photoFrame {

    return [self _rectForIvar:&ivar_photoFrame forKey:@"photoFrame"];

}

- (void)setPhotoFrame:(CGRect)rect {

    [self _setRect:rect forIvar:&ivar_photoFrame forKey:@"photoFrame"];

}

- (void)setNilValueForKey:(NSString *)key {

    if([key isEqualToString:@"frame"]) {

        [self _setRect:CGRectZero forIvar:&ivar_frame forKey:@"frame"];

        return;

    }

    if([key isEqualToString:@"photoFrame"]) {

        [self _setRect:CGRectZero forIvar:&ivar_photoFrame forKey:@"photoFrame"];

        return;

    }

    [super setNilValueForKey:key];

}

@end