Fix Apple being annoying

Source/SPConnectionController.m

@@ -86,6 +86,8 @@
  */
 static BOOL FindLinesInFile(NSData *fileData,const void *first,size_t first_len,const void *second,size_t second_len);
 
+static BOOL isOSAtLeast10_7;
+
 @interface SPConnectionController ()
 
 // Privately redeclare as read/write to get the synthesized setter
@@ -178,6 +180,10 @@ @implementation SPConnectionController
 @synthesize isConnecting;
 @synthesize isEditingConnection;
 
++ (void)initialize {
+	isOSAtLeast10_7 = [SPOSInfo isOSVersionAtLeastMajor:10 minor:7 patch:0];
+}
+
 - (NSString *)keychainPassword
 {
 	NSString *kcItemName = [self connectionKeychainItemName];
@@ -2981,10 +2987,15 @@ - (void)scrollViewFrameChanged:(NSNotification *)aNotification
 		// the division may lead to values that are not valid for the current screen size (e.g. non-integer values on a
 		// @1x non-retina screen). The OS works something out when not using layer-backed views, but in the latter
 		// case the result will look like garbage if we don't fix this.
-		// This code is taken from Apple's "BlurryView" example code.
-		connectionDetailsFrame = [[connectionDetailsScrollView superview] convertRectToBase:connectionDetailsFrame];
-		connectionDetailsFrame.origin.y = round(connectionDetailsFrame.origin.y);
-		connectionDetailsFrame = [[connectionDetailsScrollView superview] convertRectFromBase:connectionDetailsFrame];
+		if(isOSAtLeast10_7) {
+			connectionDetailsFrame = [connectionDetailsScrollView backingAlignedRect:connectionDetailsFrame options:NSAlignAllEdgesNearest];
+		}
+		else {
+			// This code is taken from Apple's "BlurryView" example code.
+			connectionDetailsFrame = [[connectionDetailsScrollView superview] convertRectToBase:connectionDetailsFrame];
+			connectionDetailsFrame.origin.y = round(connectionDetailsFrame.origin.y);
+			connectionDetailsFrame = [[connectionDetailsScrollView superview] convertRectFromBase:connectionDetailsFrame];
+		}
 		[connectionResizeContainer setFrame:connectionDetailsFrame];
 		scrollDocumentFrame.size.height = scrollViewFrame.size.height;
 		[[connectionDetailsScrollView documentView] setFrame:scrollDocumentFrame];