#import "DoorsView.h"

@implementation DoorsView

- (void)awakeFromNib

{

NSLog(@"Registering observer having just woken up from NIB...");

[appController addObserver:self forKeyPath:@"doorsClosed" options:NSKeyValueObservingOptionOld context:nil];

}

- (void) observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context

{

NSLog(@"Observed change, setting dirty flag");

[self setNeedsDisplay:YES];

}

- (int)hingeSize

{

return 20;

}

- (void)drawBackground:(NSRect)bounds

{

[[NSColor greenColor] set];

[NSBezierPath fillRect:bounds];

}

- (void)drawHinges:(NSRect)bounds

{

int boardSize = (int)bounds.size.width / 3; // assuming width = height for now

NSRect circleBounds = {{0, 0}, {[self hingeSize], [self hingeSize]}};

[[NSColor blackColor] set];

for (int x = 1; x <= 2; x++) {

for (int y = 1; y <= 2; y++) {

circleBounds.origin.x = x * boardSize - [self hingeSize] / 2;

circleBounds.origin.y = y * boardSize - [self hingeSize] / 2;

[[NSBezierPath bezierPathWithOvalInRect:circleBounds] fill];

}

}

}

- (void)drawDoors:(NSRect)bounds

{

if (![appController doorsClosed]) return;

[[NSColor blueColor] set];

NSBezierPath *path = [NSBezierPath bezierPath];

[path setLineWidth:3.0];

NSPoint point = {160, 160};

[path moveToPoint:point];

point.x = 290;

[path lineToPoint:point];

[path closePath];

[path stroke];

}

- (void)drawRect:(NSRect)rect

{

NSRect bounds = [self bounds];

[self drawBackground:bounds];

[self drawHinges:bounds];

[self drawDoors:bounds];

}