Add option for NSAttributedString attributes on letters

Author: andrewsardone

README.md

@@ -34,6 +34,7 @@ Call the following methods on any `UIImageView` instance to set the image:
 + `- (void)setImageWithString:(NSString *)string color:(UIColor *)color`
 + `- (void)setImageWithString:(NSString *)string color:(UIColor *)color circular:(BOOL)isCircular`
 + `- (void)setImageWithString:(NSString *)string color:(UIColor *)color circular:(BOOL)isCircular fontName:(NSString *)fontName`
++ `- (void)setImageWithString:(NSString *)string color:(UIColor *)color circular:(BOOL)isCircular textAttributes:(NSDictionary *)textAttributes`
 
 `string` is the string used to generate the initials. This should be a user's full name if available.
 
@@ -43,6 +44,8 @@ Call the following methods on any `UIImageView` instance to set the image:
 
 `fontName` is a string that specifies a custom font. Pass in `nil` to use the system font by default. The list of provided font identifiers can be found [here](http://iosfonts.com). 
 
+`textAttributes` is an NSDictionary that allows you to specify font, text color, shadow properties, etc., for the letters text, using the keys found in `NSAttributedString.h`.
+
 ##### Example
 
 ```

UIImageView+Letters/UIImageView+Letters.h

@@ -64,4 +64,14 @@
  */
 - (void)setImageWithString:(NSString *)string color:(UIColor *)color circular:(BOOL)isCircular fontName:(NSString *)fontName;
 
+/**
+ Sets the image property of the view based on initial text, a specified background color, custom text attributes, and a circular clipping
+
+ @param string The string used to generate the initials. This should be a user's full name if available
+ @param color (optional) This optional paramter sets the background of the image. If not provided, a random color will be generated
+ @param isCircular This boolean will determine if the image view will be clipped to a circular shape
+ @param textAttributes This dictionary allows you to specify font, text color, shadow properties, etc., for the letters text, using the keys found in NSAttributedString.h
+ */
+- (void)setImageWithString:(NSString *)string color:(UIColor *)color circular:(BOOL)isCircular textAttributes:(NSDictionary *)textAttributes;
+
 @end

UIImageView+Letters/UIImageView+Letters.m

@@ -48,6 +48,10 @@ - (void)setImageWithString:(NSString *)string color:(UIColor *)color circular:(B
 }
 
 - (void)setImageWithString:(NSString *)string color:(UIColor *)color circular:(BOOL)isCircular fontName: (NSString *)fontName {
+    [self setImageWithString:string color:color circular:isCircular textAttributes:[self defaultTextAttributesForFontName:fontName]];
+}
+
+- (void)setImageWithString:(NSString *)string color:(UIColor *)color circular:(BOOL)isCircular textAttributes:(NSDictionary *)textAttributes {
     NSMutableString *displayString = [NSMutableString stringWithString:@""];
 
     NSMutableArray *words = [[string componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] mutableCopy];
@@ -80,8 +84,8 @@ - (void)setImageWithString:(NSString *)string color:(UIColor *)color circular:(B
     }
 
     UIColor *backgroundColor = color ? color : [self randomColor];
-    
-    self.image = [self imageSnapshotFromText:[displayString uppercaseString] backgroundColor:backgroundColor circular:isCircular fontName:fontName];
+
+    self.image = [self imageSnapshotFromText:[displayString uppercaseString] backgroundColor:backgroundColor circular:isCircular textAttributes:textAttributes];
 }
 
 #pragma mark - Helpers
@@ -118,7 +122,14 @@ - (UIColor *)randomColor {
     return [UIColor colorWithRed:red green:green blue:blue alpha:1.0f];
 }
 
-- (UIImage *)imageSnapshotFromText:(NSString *)text backgroundColor:(UIColor *)color circular:(BOOL)isCircular fontName:(NSString *)fontName {
+- (NSDictionary *)defaultTextAttributesForFontName:(NSString *)fontName {
+    return @{
+        NSFontAttributeName:[self fontForText:fontName],
+        NSForegroundColorAttributeName:[UIColor whiteColor]
+    };
+}
+
+- (UIImage *)imageSnapshotFromText:(NSString *)text backgroundColor:(UIColor *)color circular:(BOOL)isCircular textAttributes:(NSDictionary *)textAttributes {
 
     CGFloat scale = [UIScreen mainScreen].scale;
 
@@ -155,10 +166,6 @@ - (UIImage *)imageSnapshotFromText:(NSString *)text backgroundColor:(UIColor *)c
     //
     // Draw text in the context
     //
-    NSDictionary *textAttributes = @{
-        NSFontAttributeName:[self fontForText:fontName],
-        NSForegroundColorAttributeName:[UIColor whiteColor]
-    };
     CGSize textSize = [text sizeWithAttributes:textAttributes];
     CGRect bounds = self.bounds;