Added option to glyph run to determine if it is a hyperlink

Cocoanetics · Aug 29, 2012 · 73afbb8 · 73afbb8
1 parent d86e833
commit 73afbb8
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Showing 2 changed files with 19 additions and 1 deletion.
diff --git a/Core/Source/DTCoreTextGlyphRun.h b/Core/Source/DTCoreTextGlyphRun.h
@@ -36,6 +36,7 @@
 @property (nonatomic, assign, readonly) CGRect frame;
 @property (nonatomic, assign, readonly) NSInteger numberOfGlyphs;
 @property (nonatomic, unsafe_unretained, readonly) NSDictionary *attributes;	// subtle simulator bug - use assign not __unsafe_unretained in 4.2
+@property (nonatomic, assign, readonly, getter=isHyperlink) BOOL hyperlink;
 
 @property (nonatomic, assign, readonly) CGFloat ascent;
 @property (nonatomic, assign, readonly) CGFloat descent;

diff --git a/Core/Source/DTCoreTextGlyphRun.m b/Core/Source/DTCoreTextGlyphRun.m
@@ -49,7 +49,10 @@ @implementation DTCoreTextGlyphRun
     NSArray *stringIndices;
 
 	DTTextAttachment *_attachment;
+	BOOL _hyperlink;
+
 	BOOL _didCheckForAttachmentInAttributes;
+	BOOL _didCheckForHyperlinkInAttributes;
 	BOOL _didCalculateMetrics;
 }
 
@@ -246,6 +249,21 @@ - (DTTextAttachment *)attachment
 	return _attachment;
 }
 
+- (BOOL)isHyperlink
+{
+	if (!_hyperlink)
+	{
+		if (!_didCheckForHyperlinkInAttributes)
+		{
+			_hyperlink = [self.attributes objectForKey:DTLinkAttribute]!=nil;
+
+			_didCheckForHyperlinkInAttributes = YES;
+		}
+	}
+
+	return _hyperlink;
+}
+
 - (CGRect)frame
 {
 	if (!_didCalculateMetrics)
@@ -296,7 +314,6 @@ - (CGFloat)leading
 	return leading;
 }
 
-
 @synthesize frame = _frame;
 @synthesize numberOfGlyphs;
 @synthesize attributes;