Added the ability to use <font color="#AABBFF">text</font> style tags…

… to color text dynamically without having to set a markup style tag. Useful for dynamic text loaded through network. Uses UIColor+Hex category, which I did NOT write, but the snippet was found long ago, and don't recall where, else I would attribute it.

Source/CCoreTextLabel.m

@@ -37,6 +37,7 @@
 #import "CMarkupValueTransformer.h"
 #import "CCoreTextRenderer.h"
 #import "UIFont_CoreTextExtensions.h"
+#import "UIColor+Hex.h"
 
 @interface CCoreTextLabel ()
 @property (readwrite, nonatomic, retain) CCoreTextRenderer *renderer;
@@ -81,6 +82,13 @@ + (NSAttributedString *)normalizeString:(NSAttributedString *)inString font:(UIF
             {
             [theMutableText addAttribute:(__bridge NSString *)kCTForegroundColorAttributeName value:(__bridge id)theColor.CGColor range:range];
             }
+        // [DW]
+        if ([attrs objectForKey:kMarkupTextColorAttributeName] != NULL)
+        {
+            NSString *theColorStr = [attrs objectForKey:kMarkupTextColorAttributeName];
+            if(theColorStr)
+                [theMutableText addAttribute:(__bridge NSString *)kCTForegroundColorAttributeName value:(__bridge id)[UIColor colorWithHexString:theColorStr].CGColor range:range];
+        }
         }];
 
     CTTextAlignment theTextAlignment;

Source/CMarkupValueTransformer.h

@@ -36,6 +36,8 @@ extern NSString *const kMarkupBoldAttributeName;
 extern NSString *const kMarkupItalicAttributeName;
 extern NSString *const kMarkupSizeAdjustmentAttributeName;
 extern NSString *const kMarkupAttachmentAttributeName;
+extern NSString *const kMarkupTextColorAttributeName;
+
 
 @interface CMarkupValueTransformer : NSValueTransformer
 

Source/CMarkupValueTransformer.m

@@ -43,6 +43,7 @@
 NSString *const kMarkupItalicAttributeName = @"com.touchcode.italic";
 NSString *const kMarkupSizeAdjustmentAttributeName = @"com.touchcode.sizeAdjustment";
 NSString *const kMarkupAttachmentAttributeName = @"com.touchcode.attachment";
+NSString *const kMarkupTextColorAttributeName = @"com.touchcode.textColor";
 
 @interface CMarkupValueTransformer ()
 @property (readwrite, nonatomic, strong) NSMutableArray *attributesForTags;
@@ -93,6 +94,7 @@ - (id)transformedValue:(id)value error:(NSError **)outError
 
     __block NSMutableDictionary *theTextAttributes = NULL;
     __block NSURL *theCurrentLink = NULL;
+    __block NSString *theCurrentColor = NULL;
 
     CSimpleHTMLParser *theParser = [[CSimpleHTMLParser alloc] init];
 
@@ -105,6 +107,14 @@ - (id)transformedValue:(id)value error:(NSError **)outError
                 theCurrentLink = [NSURL URLWithString:theURLString];
                 }
             }
+        else if ([inTag isEqualToString:@"font"] == YES)
+        {
+            NSString *theURLString = [inAttributes objectForKey:@"color"];
+            if ((id)theURLString != [NSNull null] && theURLString.length > 0)
+            {
+                theCurrentColor = [NSString stringWithString:theURLString];
+            }            
+        }
         else if ([inTag isEqualToString:@"img"] == YES)
             {
             NSString *theImageSource = [inAttributes objectForKey:@"src"];
@@ -139,11 +149,12 @@ - (id)transformedValue:(id)value error:(NSError **)outError
         };
 
     theParser.closeTagHandler = ^(NSString *inTag, NSArray *tagStack) {
-        if ([inTag isEqualToString:@"a"] == YES)
-            {
+        if ([inTag isEqualToString:@"a"] == YES|| [inTag isEqualToString:@"font"] == YES)
+        {
             theCurrentLink = NULL;
-            }
-        };
+            theCurrentColor = NULL;
+        }
+    };
 
     theParser.textHandler = ^(NSString *inString, NSArray *tagStack) {
         NSDictionary *theAttributes = [self attributesForTagStack:tagStack];
@@ -153,6 +164,12 @@ - (id)transformedValue:(id)value error:(NSError **)outError
             {
             [theTextAttributes setObject:theCurrentLink forKey:kMarkupLinkAttributeName];
             }
+
+        if (theCurrentColor != NULL)
+        {
+            [theTextAttributes setObject:theCurrentColor forKey:kMarkupTextColorAttributeName];
+        }
+
 
         [theAttributedString appendAttributedString:[[NSAttributedString alloc] initWithString:inString attributes:theTextAttributes]];
         };

Source/UIColor+Hex.h

@@ -0,0 +1,15 @@
+//
+//  UIColor+Hex.h
+//  CultureShelf
+//
+//  Created by Daniel Wyszynski on 11/1/11.
+//  Copyright (c) 2011 Punch Media, Inc. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+@interface UIColor (i7HexColor)
+
++ (UIColor *)colorWithHexString:(NSString *)hexString;
+
+@end

Source/UIColor+Hex.m

@@ -0,0 +1,49 @@
+//
+//  UIColor+Hex.m
+//  CultureShelf
+//
+//  Created by Daniel Wyszynski on 11/1/11.
+//  Copyright (c) 2011 Punch Media, Inc. All rights reserved.
+//
+
+#import "UIColor+Hex.h"
+
+@implementation UIColor (i7HexColor)
+
++ (UIColor *)colorWithHexString:(NSString *)hexString {
+
+	/* convert the string into a int */
+	unsigned int colorValueR,colorValueG,colorValueB,colorValueA;
+	NSString *hexStringCleared = [hexString stringByReplacingOccurrencesOfString:@"#" withString:@""];
+	if(hexStringCleared.length == 3) {
+		/* short color form */
+		/* im lazy, maybe you have a better idea to convert from #fff to #ffffff */
+		hexStringCleared = [NSString stringWithFormat:@"%@%@%@%@%@%@", [hexStringCleared substringWithRange:NSMakeRange(0, 1)],[hexStringCleared substringWithRange:NSMakeRange(0, 1)],
+                            [hexStringCleared substringWithRange:NSMakeRange(1, 1)],[hexStringCleared substringWithRange:NSMakeRange(1, 1)],
+                            [hexStringCleared substringWithRange:NSMakeRange(2, 1)],[hexStringCleared substringWithRange:NSMakeRange(2, 1)]];
+	}
+	if(hexStringCleared.length == 6) {
+		hexStringCleared = [hexStringCleared stringByAppendingString:@"ff"];
+	}
+
+	/* im in hurry ;) */
+	NSString *red = [hexStringCleared substringWithRange:NSMakeRange(0, 2)];
+	NSString *green = [hexStringCleared substringWithRange:NSMakeRange(2, 2)];
+	NSString *blue = [hexStringCleared substringWithRange:NSMakeRange(4, 2)];
+	NSString *alpha = [hexStringCleared substringWithRange:NSMakeRange(6, 2)];
+
+	[[NSScanner scannerWithString:red] scanHexInt:&colorValueR];
+	[[NSScanner scannerWithString:green] scanHexInt:&colorValueG];
+	[[NSScanner scannerWithString:blue] scanHexInt:&colorValueB];
+	[[NSScanner scannerWithString:alpha] scanHexInt:&colorValueA];
+
+
+	return [UIColor colorWithRed:((colorValueR)&0xFF)/255.0 
+                           green:((colorValueG)&0xFF)/255.0 
+                            blue:((colorValueB)&0xFF)/255.0 
+                           alpha:((colorValueA)&0xFF)/255.0];
+
+
+}
+
+@end

Test/CoreText.xcodeproj/project.pbxproj

@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		37850D021496641A004AAA31 /* UIColor+Hex.m in Sources */ = {isa = PBXBuildFile; fileRef = 37850D011496641A004AAA31 /* UIColor+Hex.m */; };
 		4528EA61145386F500814B3E /* NSAttributedString_DebugExtensions.m in Sources */ = {isa = PBXBuildFile; fileRef = 4528EA60145386F500814B3E /* NSAttributedString_DebugExtensions.m */; };
 		4528EAB91454816F00814B3E /* CExampleCoreTextViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 4528EAB81454816F00814B3E /* CExampleCoreTextViewController.m */; };
 		453E8B7E1453255000C8A559 /* MissingImage.png in Resources */ = {isa = PBXBuildFile; fileRef = 453E8B7D1453255000C8A559 /* MissingImage.png */; };
@@ -53,6 +54,8 @@
 /* End PBXContainerItemProxy section */
 
 /* Begin PBXFileReference section */
+		37850CFF1496640E004AAA31 /* UIColor+Hex.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "UIColor+Hex.h"; sourceTree = "<group>"; };
+		37850D011496641A004AAA31 /* UIColor+Hex.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = "UIColor+Hex.m"; sourceTree = "<group>"; };
 		4528EA5F145386F500814B3E /* NSAttributedString_DebugExtensions.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = NSAttributedString_DebugExtensions.h; sourceTree = "<group>"; };
 		4528EA60145386F500814B3E /* NSAttributedString_DebugExtensions.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = NSAttributedString_DebugExtensions.m; sourceTree = "<group>"; };
 		4528EAB71454816F00814B3E /* CExampleCoreTextViewController.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = CExampleCoreTextViewController.h; sourceTree = "<group>"; };
@@ -151,6 +154,8 @@
 				45789C5B145F1338004EA63E /* CCoreTextAttachment.h */,
 				45789C5C145F1338004EA63E /* CCoreTextAttachment.m */,
 				453E8B7D1453255000C8A559 /* MissingImage.png */,
+				37850CFF1496640E004AAA31 /* UIColor+Hex.h */,
+				37850D011496641A004AAA31 /* UIColor+Hex.m */,
 			);
 			name = Source;
 			path = ../Source;
@@ -371,6 +376,7 @@
 				45920521145A6A9700DECA27 /* CTwitterStyleTweetTextLabel.m in Sources */,
 				4548A9F6145B2422001C5654 /* CResizerThumb.m in Sources */,
 				45789C5D145F1338004EA63E /* CCoreTextAttachment.m in Sources */,
+				37850D021496641A004AAA31 /* UIColor+Hex.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

Test/CoreText/CExampleCoreTextViewController.m

@@ -46,7 +46,7 @@ - (void)viewDidLoad
     [self.label2.markupValueTransformer addStyleAttributes:theAttributes forTag:@"username"];
     self.label2.lineBreakMode = UILineBreakModeWordWrap;
     self.label2.textColor = [[UIColor whiteColor] colorWithAlphaComponent:0.6];
-    self.label2.markup = @"<username>@schwa</username> RUBBERS";
+    self.label2.markup = @"<font color=\"#33ff00\">colored</font><username>@schwa</username> RUBBERS";
 
     // #########################################################################