NSBezierPath_NV.m

//
//  NSBezierPath_NV.m
//  Notation
//
//  Created by Zachary Schneirov on 1/14/11.

/*Copyright (c) 2010, Zachary Schneirov. All rights reserved.
    This file is part of Notational Velocity.

    Notational Velocity is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Notational Velocity is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Notational Velocity.  If not, see <http://www.gnu.org/licenses/>. */

#import "NSBezierPath_NV.h"


@implementation NSBezierPath (NV)

+ (NSBezierPath *)bezierPathWithRoundRectInRect:(NSRect)aRect radius:(float)radius  {
	NSBezierPath* path = [NSBezierPath bezierPath];
	float smallestEdge = MIN(NSWidth(aRect), NSHeight(aRect));
	radius = MIN(radius, 0.5f * smallestEdge);
	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;
}

+ (NSBezierPath *)bezierPathWithLayoutManager:(NSLayoutManager*)layoutManager characterRange:(NSRange)charRange atPoint:(NSPoint)point {
	NSRange range = [layoutManager glyphRangeForCharacterRange:charRange actualCharacterRange:NULL];
	NSGlyph *glyphs = (NSGlyph *)malloc(sizeof(NSGlyph) * range.length * 2);
	[layoutManager getGlyphs:glyphs range:range];
		
	NSBezierPath *path = [NSBezierPath bezierPath];
	[path moveToPoint:point];
	[path appendBezierPathWithGlyphs:glyphs count:range.length inFont:[[layoutManager textStorage] font]];
	
	free(glyphs);
	
	return path;
}


@end


@implementation NSImage (NV)

+ (NSImage*)smallIconForFSRef:(FSRef*)fsRef {
    OSStatus err = noErr;
    
    if (!fsRef)
		return nil;
    
    IconRef iconRef;
    if ((err = GetIconRefFromFileInfo(fsRef, 0, NULL, 0, NULL, kIconServicesNormalUsageFlag, &iconRef, NULL)) == noErr) {
		
		NSImage *image = [[[NSImage alloc] initWithSize:NSMakeSize(16.0f, 16.0f)] autorelease];
		NSRect frame = NSMakeRect(0.0f,0.0f,16.0f,16.0f);
		
		[image lockFocus];
		err = PlotIconRefInContext([[NSGraphicsContext currentContext] graphicsPort], (CGRect *)&frame, 0, 0, nil, 0, iconRef);
		[image unlockFocus];
		
		if (err == noErr)
			return image;
    }
    
    NSLog(@"smallIconForFSRef error: %d", err);
    
    return nil;
}


@end