NSImage+resize.m

- (NSImage *)resizeTo:(NSSize)newsize
{
  NSImage *resizedImage = [[NSImage alloc] initWithSize:newsize];
	NSSize originalSize = [self size];
	[resizedImage lockFocus];
	[self drawInRect: NSMakeRect(0, 0, newsize.width, newsize.height) fromRect: NSMakeRect(0, 0, originalSize.width, originalSize.height) operation: NSCompositeSourceOver fraction: 1.0];
	[resizedImage unlockFocus];
#if  __has_feature(objc_arc)
	return resizedImage;
#else
	return [resizedImage autorelease];
#endif
}