//  Created by Abhishek Banthia on 11/4/15.
//  Copyright (c) 2015 Abhishek Banthia All rights reserved.
//

// Copyright (c) 2015, Abhishek Banthia
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation and/or
// other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
// IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
// EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.


#import "BackgroundView.h"

#define FILL_OPACITY 0.9f
#define STROKE_OPACITY 1.0f

#define LINE_THICKNESS 1.0f
#define CORNER_RADIUS 6.0f

#define SEARCH_INSET 10.0f
#import "ApplicationDelegate.h"
#import "PanelController.h"

#pragma mark -

@implementation BackgroundView


@synthesize arrowX = _arrowX;

#pragma mark -

- (void)drawRect:(NSRect)dirtyRect
{
    NSRect contentRect = NSInsetRect([self bounds], LINE_THICKNESS, LINE_THICKNESS);
    NSBezierPath *path = [NSBezierPath bezierPath];
    
    [path moveToPoint:NSMakePoint(_arrowX, NSMaxY(contentRect))];
    [path lineToPoint:NSMakePoint(_arrowX + ARROW_WIDTH / 2, NSMaxY(contentRect) - ARROW_HEIGHT)];
    [path lineToPoint:NSMakePoint(NSMaxX(contentRect) - CORNER_RADIUS, NSMaxY(contentRect) - ARROW_HEIGHT)];
    
    NSPoint topRightCorner = NSMakePoint(NSMaxX(contentRect), NSMaxY(contentRect) - ARROW_HEIGHT);
    [path curveToPoint:NSMakePoint(NSMaxX(contentRect), NSMaxY(contentRect) - ARROW_HEIGHT - CORNER_RADIUS)
         controlPoint1:topRightCorner controlPoint2:topRightCorner];
    
    [path lineToPoint:NSMakePoint(NSMaxX(contentRect), NSMinY(contentRect) + CORNER_RADIUS)];
    
    NSPoint bottomRightCorner = NSMakePoint(NSMaxX(contentRect), NSMinY(contentRect));
    [path curveToPoint:NSMakePoint(NSMaxX(contentRect) - CORNER_RADIUS, NSMinY(contentRect))
         controlPoint1:bottomRightCorner controlPoint2:bottomRightCorner];
    
    [path lineToPoint:NSMakePoint(NSMinX(contentRect) + CORNER_RADIUS, NSMinY(contentRect))];
    
    [path curveToPoint:NSMakePoint(NSMinX(contentRect), NSMinY(contentRect) + CORNER_RADIUS)
         controlPoint1:contentRect.origin controlPoint2:contentRect.origin];
    
    [path lineToPoint:NSMakePoint(NSMinX(contentRect), NSMaxY(contentRect) - ARROW_HEIGHT - CORNER_RADIUS)];
    
    NSPoint topLeftCorner = NSMakePoint(NSMinX(contentRect), NSMaxY(contentRect) - ARROW_HEIGHT);
    [path curveToPoint:NSMakePoint(NSMinX(contentRect) + CORNER_RADIUS, NSMaxY(contentRect) - ARROW_HEIGHT)
         controlPoint1:topLeftCorner controlPoint2:topLeftCorner];
    
    [path lineToPoint:NSMakePoint(_arrowX - ARROW_WIDTH / 2, NSMaxY(contentRect) - ARROW_HEIGHT)];
    [path closePath];
    
    [[NSColor colorWithDeviceWhite:1 alpha:FILL_OPACITY] setFill];
    [path fill];
    
    [NSGraphicsContext saveGraphicsState];

    NSBezierPath *clip = [NSBezierPath bezierPathWithRect:[self bounds]];
    [clip appendBezierPath:path];
    [clip addClip];
    
    [path setLineWidth:LINE_THICKNESS * 2];
    [[NSColor whiteColor] setStroke];
    [path stroke];
    
    [NSGraphicsContext restoreGraphicsState];
}

-(void)mouseEntered:(NSEvent *)theEvent
{
    [super mouseEntered:theEvent];
    
    ApplicationDelegate *delegate = (ApplicationDelegate*)[NSApplication sharedApplication].delegate;
    PanelController *controller = delegate.panelController;
    
    [controller showOptions:YES];
}

-(void)mouseExited:(NSEvent *)theEvent
{
    [super mouseExited:theEvent];
    
    ApplicationDelegate *delegate = (ApplicationDelegate*) [NSApplication sharedApplication].delegate;
    PanelController *controller = delegate.panelController;
    
    [controller showOptions:NO];
}

-(void)updateTrackingAreas
{
    if(self.trackingArea != nil) {
        [self removeTrackingArea:self.trackingArea];
    }
    
    int opts = (NSTrackingMouseEnteredAndExited | NSTrackingActiveAlways);
    self.trackingArea = [ [NSTrackingArea alloc] initWithRect:[self bounds]
                                                      options:opts
                                                        owner:self
                                                     userInfo:nil];
    [self addTrackingArea:self.trackingArea];
}



#pragma mark -
#pragma mark Public accessors

- (void)setArrowX:(NSInteger)value
{
    _arrowX = value;
    [self setNeedsDisplay:YES];
}

@end