BezierPathExtensions.m

//
//  BezierPathExtensions.m
//  Vienna
//
//  Created by Steve on 7/16/05.
//  Copyright (c) 2004-2005 Steve Palmer. All rights reserved.
//
//  Licensed under the Apache License, Version 2.0 (the "License");
//  you may not use this file except in compliance with the License.
//  You may obtain a copy of the License at
//
//  http://www.apache.org/licenses/LICENSE-2.0
//
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS,
//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//  See the License for the specific language governing permissions and
//  limitations under the License.
//

#import "BezierPathExtensions.h"

@implementation NSBezierPath (BezierPathExtensions)

/* bezierPathWithRoundRectInRect
 * Create a rectangluar bezier path with rounded corners. Radius is the radius of the corners.
 */
+(NSBezierPath *)bezierPathWithRoundRectInRect:(NSRect)aRect radius:(float)radius
{
	NSBezierPath * path = [NSBezierPath bezierPath];
	radius = MIN(radius, 0.5f * MIN(NSWidth(aRect), NSHeight(aRect)));
	NSRect rect = NSInsetRect(aRect, radius, radius);
	[path appendBezierPathWithArcWithCenter:NSMakePoint(NSMinX(rect), NSMinY(rect)) radius:radius startAngle:180.0 endAngle:270.0];
	[path appendBezierPathWithArcWithCenter:NSMakePoint(NSMaxX(rect), NSMinY(rect)) radius:radius startAngle:270.0 endAngle:360.0];
	[path appendBezierPathWithArcWithCenter:NSMakePoint(NSMaxX(rect), NSMaxY(rect)) radius:radius startAngle:  0.0 endAngle: 90.0];
	[path appendBezierPathWithArcWithCenter:NSMakePoint(NSMinX(rect), NSMaxY(rect)) radius:radius startAngle: 90.0 endAngle:180.0];
	[path closePath];
	return path;
}
@end