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73 lines
1.6 KiB
Objective-C
73 lines
1.6 KiB
Objective-C
//
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// CurveView.m
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// 2Term
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//
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// Created by Kelvin Sherlock on 7/8/2010.
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// Copyright 2010 __MyCompanyName__. All rights reserved.
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//
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#import "CurveView.h"
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#import "ScanLineFilter.h"
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@implementation CurveView
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@synthesize color = _color;
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- (id)initWithFrame:(NSRect)frame {
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self = [super initWithFrame:frame];
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if (self) {
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// Initialization code here.
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}
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return self;
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}
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#define curveSize 4
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- (void)drawRect:(NSRect)dirtyRect {
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NSGraphicsContext *nsgc = [NSGraphicsContext currentContext];
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CGContextRef ctx = [nsgc graphicsPort];
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NSRect bounds = [self bounds];
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[_color setFill];
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CGContextMoveToPoint(ctx, 0, curveSize);
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CGContextAddLineToPoint(ctx, 0, bounds.size.height - curveSize);
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CGContextAddQuadCurveToPoint(ctx, 0, bounds.size.height, curveSize, bounds.size.height);
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CGContextAddLineToPoint(ctx, bounds.size.width - curveSize, bounds.size.height);
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CGContextAddQuadCurveToPoint(ctx, bounds.size.width, bounds.size.height, bounds.size.width, bounds.size.height - curveSize);
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CGContextAddLineToPoint(ctx, bounds.size.width, curveSize);
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CGContextAddQuadCurveToPoint(ctx, bounds.size.width, 0, bounds.size.width - curveSize, 0);
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CGContextAddLineToPoint(ctx, curveSize, 0);
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CGContextAddQuadCurveToPoint(ctx, 0, 0, 0, curveSize);
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CGContextFillPath(ctx);
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}
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-(void)setColor:(NSColor *)color
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{
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if (_color == color) return;
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[_color release];
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_color = [color retain];
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[self setNeedsDisplay: YES];
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}
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-(void)dealloc
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{
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[_color release];
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}
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@end
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