Added new files

Classes/DTCoreTextFontDescriptor.h

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+//
+//  DTCoreTextFontDescriptor.h
+//  CoreTextExtensions
+//
+//  Created by Oliver Drobnik on 1/26/11.
+//  Copyright 2011 Drobnik.com. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+#import <CoreText/CoreText.h>
+
+@interface DTCoreTextFontDescriptor : NSObject <NSCopying>
+{
+
+	NSString *fontFamily;
+
+	CGFloat pointSize;
+
+	// symbolic traits
+	BOOL boldTrait;
+	BOOL italicTrait;
+	BOOL expandedTrait;
+	BOOL condensedTrait;
+	BOOL monospaceTrait;
+	BOOL verticalTrait;
+	BOOL UIoptimizedTrait;
+}
+
++ (DTCoreTextFontDescriptor *)fontDescriptorWithFontAttributes:(NSDictionary *)attributes;
+
+- (id)initWithFontAttributes:(NSDictionary *)attributes;
+
+- (CTFontSymbolicTraits)symbolicTraits;
+- (NSDictionary *)fontAttributes;
+
+@property (nonatomic, copy) NSString *fontFamily;
+
+@property (nonatomic, assign) CGFloat pointSize;
+
+@property (nonatomic) BOOL boldTrait;
+@property (nonatomic) BOOL italicTrait;
+@property (nonatomic) BOOL expandedTrait;
+@property (nonatomic) BOOL condensedTrait;
+@property (nonatomic) BOOL monospaceTrait;
+@property (nonatomic) BOOL verticalTrait;
+@property (nonatomic) BOOL UIoptimizedTrait;
+
+@end

Classes/DTCoreTextFontDescriptor.m

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+//
+//  DTCoreTextFontDescriptor.m
+//  CoreTextExtensions
+//
+//  Created by Oliver Drobnik on 1/26/11.
+//  Copyright 2011 Drobnik.com. All rights reserved.
+//
+
+#import "DTCoreTextFontDescriptor.h"
+
+
+@implementation DTCoreTextFontDescriptor
+
+
++ (DTCoreTextFontDescriptor *)fontDescriptorWithFontAttributes:(NSDictionary *)attributes
+{
+	return [[[DTCoreTextFontDescriptor alloc] initWithFontAttributes:attributes] autorelease];
+}
+
+- (id)initWithFontAttributes:(NSDictionary *)attributes
+{
+	if (self = [super init])
+	{
+		if (attributes) 
+		{
+			NSDictionary *traitsDict = [attributes objectForKey:(id)kCTFontTraitsAttribute];
+
+			CTFontSymbolicTraits traitsValue = [[traitsDict objectForKey:(id)kCTFontSymbolicTrait ] unsignedIntValue];
+
+			if (traitsValue & kCTFontBoldTrait)
+			{
+				boldTrait = YES;
+			}
+
+			if (traitsValue & kCTFontItalicTrait)
+			{
+				italicTrait = YES;
+			}
+
+			if (traitsValue & kCTFontExpandedTrait)
+			{
+				expandedTrait = YES;
+			}
+
+			if (traitsValue & kCTFontCondensedTrait)
+			{
+				condensedTrait = YES;
+			}
+
+			if (traitsValue & kCTFontMonoSpaceTrait)
+			{
+				monospaceTrait = YES;
+			}
+
+			if (traitsValue & kCTFontVerticalTrait)
+			{
+				verticalTrait = YES;
+			}
+
+			if (traitsValue & kCTFontUIOptimizedTrait)
+			{
+				UIoptimizedTrait = YES;
+			}
+
+			pointSize = [[attributes objectForKey:(id)kCTFontSizeAttribute] floatValue];
+
+			self.fontFamily = [attributes objectForKey:(id)kCTFontFamilyNameAttribute];
+		}
+	}
+
+	return self;
+}
+
+
+- (CTFontSymbolicTraits)symbolicTraits
+{
+	CTFontSymbolicTraits retValue = 0;
+
+
+	if (boldTrait)
+	{
+		retValue |= kCTFontBoldTrait;
+	}
+
+	if (italicTrait)
+	{
+		retValue |= kCTFontItalicTrait;
+	}
+
+	if (expandedTrait)
+	{
+		retValue |= kCTFontExpandedTrait;
+	}
+
+	if (condensedTrait)
+	{
+		retValue |= kCTFontCondensedTrait;
+	}
+
+	if (monospaceTrait)
+	{
+		retValue |= kCTFontMonoSpaceTrait;
+	}
+
+	if (verticalTrait)
+	{
+		retValue |= kCTFontVerticalTrait;
+	}
+
+	if (UIoptimizedTrait)
+	{
+		retValue |= kCTFontUIOptimizedTrait;
+	}
+
+	return retValue;
+}
+
+- (NSDictionary *)fontAttributes
+{
+
+	NSMutableDictionary *tmpDict = [NSMutableDictionary dictionary];
+
+	NSMutableDictionary *traitsDict = [NSMutableDictionary dictionary];
+
+	CTFontSymbolicTraits symbolicTraits = [self symbolicTraits];
+
+	if (symbolicTraits)
+	{
+		[traitsDict setObject:[NSNumber numberWithUnsignedInt:symbolicTraits] forKey:(id)kCTFontSymbolicTrait];
+	}
+
+	if ([traitsDict count])
+	{
+		[tmpDict setObject:traitsDict forKey:(id)kCTFontTraitsAttribute];
+	}
+
+	if (fontFamily)
+	{
+		[tmpDict setObject:fontFamily forKey:(id)kCTFontFamilyNameAttribute];
+	}
+
+	[tmpDict setObject:[NSNumber numberWithFloat:pointSize] forKey:(id)kCTFontSizeAttribute];
+
+	return [NSDictionary dictionaryWithDictionary:tmpDict];
+}
+
+#pragma mark Copying
+
+- (id)copyWithZone:(NSZone *)zone
+{
+	DTCoreTextFontDescriptor *newDesc = [[DTCoreTextFontDescriptor allocWithZone:zone] initWithFontAttributes:[self fontAttributes]];
+	newDesc.pointSize = self.pointSize;
+
+	return newDesc;
+}
+
+
+#pragma mark Properties
+
+@synthesize fontFamily;
+
+@synthesize pointSize;
+@synthesize boldTrait;
+@synthesize italicTrait;
+@synthesize expandedTrait;
+@synthesize condensedTrait;
+@synthesize monospaceTrait;
+@synthesize verticalTrait;
+@synthesize UIoptimizedTrait;
+
+@end
+