/*

File: DCDie.m

Abstract: Implementation of a single die

Version: 1.0

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*/ 

#import "DCDie.h"

#import "NSBezierPath-RoundedRect.h"

#import "DCDiceView.h"

#import "DCDiceView-Private.h"

@implementation DCDie

+(void)initialize {

    srandom(time(NULL));

}

-(id)initWithBounds:(NSRect) rect {

    self = [super init];

    if (self) {

        hasHold = NO;

        [self roll];

        bounds = rect;

    }

    return self;

}

-(id)initWithBounds:(NSRect) rect spotCount:(unsigned int)spots

{

    self = [self initWithBounds: rect];

    if (self) {

        spotCount = spots;

    }

    return self;

}

- (void)setParent:(DCDiceView *)view {

    parent = view;

}

- (DCDiceView *) parent {

    return parent;

}

- (unsigned int)spotCount {

    return spotCount;

}

- (NSRect)bounds {

    return bounds;

}

- (void)setBounds:(NSRect)value {

        bounds = value;

}

- (void)toggleHold {

    hasHold = !hasHold;

    NSAccessibilityPostNotification(self, NSAccessibilityValueChangedNotification);  // Accessibility Related

}

- (void)clearFromView {

    hasHold = NO;

    NSAccessibilityPostNotification(self, NSAccessibilityUIElementDestroyedNotification);  // Accessibility Related

}

- (BOOL)hasFocus {

    return hasFocus;

}

- (void)setFocus:(BOOL)flag {

    hasFocus = flag;

}

-(void)drawSpotAtPoint:(NSPoint) point {

    float spotSide = bounds.size.width / 5.0;

    float halfSide = spotSide / 2.0;

    NSRect spotRect = NSMakeRect(point.x - halfSide, point.y - halfSide, spotSide, spotSide);

    [[NSColor blackColor] set];

    [[NSBezierPath bezierPathWithOvalInRect: spotRect] fill];

    [[NSColor whiteColor] set];

    [[NSBezierPath bezierPathWithOvalInRect: NSInsetRect(spotRect, 1.0, 1.0)] fill];

}

-(void)drawSpots {

    NSRect insetRect = NSInsetRect(bounds, bounds.size.width / 4.0, bounds.size.height / 4.0);

    switch(spotCount) {

        case 1:

            [self drawSpotAtPoint: NSMakePoint(NSMidX(insetRect), NSMidY(insetRect))];

            break;

        case 2:

            [self drawSpotAtPoint: NSMakePoint(NSMinX(insetRect), NSMinY(insetRect))];

            [self drawSpotAtPoint: NSMakePoint(NSMaxX(insetRect), NSMaxY(insetRect))];

            break;

        case 3:

            [self drawSpotAtPoint: NSMakePoint(NSMinX(insetRect), NSMinY(insetRect))];

            [self drawSpotAtPoint: NSMakePoint(NSMidX(insetRect), NSMidY(insetRect))];

            [self drawSpotAtPoint: NSMakePoint(NSMaxX(insetRect), NSMaxY(insetRect))];

            break;

        case 4:

            [self drawSpotAtPoint: NSMakePoint(NSMinX(insetRect), NSMinY(insetRect))];

            [self drawSpotAtPoint: NSMakePoint(NSMinX(insetRect), NSMaxY(insetRect))];

            [self drawSpotAtPoint: NSMakePoint(NSMaxX(insetRect), NSMinY(insetRect))];

            [self drawSpotAtPoint: NSMakePoint(NSMaxX(insetRect), NSMaxY(insetRect))];

            break;

        case 5:

            [self drawSpotAtPoint: NSMakePoint(NSMinX(insetRect), NSMinY(insetRect))];

            [self drawSpotAtPoint: NSMakePoint(NSMinX(insetRect), NSMaxY(insetRect))];

            [self drawSpotAtPoint: NSMakePoint(NSMidX(insetRect), NSMidY(insetRect))];

            [self drawSpotAtPoint: NSMakePoint(NSMaxX(insetRect), NSMinY(insetRect))];

            [self drawSpotAtPoint: NSMakePoint(NSMaxX(insetRect), NSMaxY(insetRect))];

            break;

        case 6:

            [self drawSpotAtPoint: NSMakePoint(NSMinX(insetRect), NSMinY(insetRect))];

            [self drawSpotAtPoint: NSMakePoint(NSMinX(insetRect), NSMidY(insetRect))];

            [self drawSpotAtPoint: NSMakePoint(NSMinX(insetRect), NSMaxY(insetRect))];

            [self drawSpotAtPoint: NSMakePoint(NSMaxX(insetRect), NSMinY(insetRect))];

            [self drawSpotAtPoint: NSMakePoint(NSMaxX(insetRect), NSMidY(insetRect))];

            [self drawSpotAtPoint: NSMakePoint(NSMaxX(insetRect), NSMaxY(insetRect))];

            break;

        default:

            break;

    }

}

-(void)draw {

    float radius = bounds.size.width / 10.0;

    NSBezierPath *path = nil;

    if (hasFocus && parent && [parent shouldDisplayFocus]) {

        float focusRectOffset;

        if (hasHold) {

            focusRectOffset = 8.0; 

        } else {

            focusRectOffset = 2.0;

        }

        [NSGraphicsContext saveGraphicsState];

        NSSetFocusRingStyle(NSFocusRingOnly);

        path = [NSBezierPath bezierPathWithRoundedRect:NSInsetRect(bounds, -focusRectOffset, -focusRectOffset)  cornerRadius:(radius + (focusRectOffset / bounds.size.width))];

        [path fill];

        [NSGraphicsContext restoreGraphicsState];

    }

    if (hasHold) {

        [[NSColor blackColor] set];

        path = [NSBezierPath bezierPathWithRoundedRect:NSInsetRect(bounds, -6.0, -6.0)  cornerRadius:(radius + (6.0 / bounds.size.width))];

        [path fill];

        [[NSColor yellowColor] set];

        path = [NSBezierPath bezierPathWithRoundedRect:NSInsetRect(bounds, -4.0, -4.0)  cornerRadius:(radius + (4.0 / bounds.size.width))];

        [path fill];

    }

    [[NSColor blackColor] set];

    path = [NSBezierPath bezierPathWithRoundedRect:bounds cornerRadius:radius];

    [path fill];

    [[NSColor redColor] set];

    path = [NSBezierPath bezierPathWithRoundedRect:NSInsetRect(bounds, 2.0, 2.0) cornerRadius: (radius - (2.0 / bounds.size.width))];

    [path fill];

    [self drawSpots];

}

-(void)roll {

    if (!hasHold) {

        spotCount = random() % 6 + 1;

    }

}

-(BOOL)containsPoint:(NSPoint) point {

    float radius = bounds.size.width / 10.0;

    NSBezierPath *path = [NSBezierPath bezierPathWithRoundedRect:bounds cornerRadius:radius];

    return [path containsPoint: point];

}

@end