//
//  MPSumFunctionLayout.m
//  MathPad
//
//  Created by Kim Wittenburg on 23.04.14.
//  Copyright (c) 2014 Kim Wittenburg. All rights reserved.
//

#import "MPSumFunctionLayout.h"
#import "MPSumFunction.h"

@implementation MPSumFunctionLayout

- (MPSumFunction *)sumFunction
{
    return (MPSumFunction *)self.function;
}

- (NSBezierPath *)generateBezierPath
{
    NSAttributedString *text = [[NSAttributedString alloc] initWithString:@"∑"
                                                               attributes:@{NSFontAttributeName: [NSFont fontWithName:@"Lucida Grande" size:18.0]}];
    self.textStorage.attributedString = text;
    NSRange glyphRange = [self.layoutManager glyphRangeForTextContainer:self.textContainer];
    NSGlyph glyphs[glyphRange.length+1];
    NSUInteger actualGylphCount = [self.layoutManager getGlyphs:glyphs
                                                          range:glyphRange];
    NSBezierPath *path = [NSBezierPath bezierPath];
    [path moveToPoint:NSZeroPoint];
    [path appendBezierPathWithGlyphs:glyphs
                               count:actualGylphCount
                              inFont:[NSFont fontWithName:@"Lucida Grande" size:18.0]];
    return path;
}

@end