Cleaned Code

MathPad/MPLayout.m

@@ -84,7 +84,7 @@
     if (index >= _cache.count) {
         return NO;
     }
-    return _cache[index] != MPNull;
+    return _cache[index] != [NSNull null];
 }
 
 - (id)cachableObjectForIndex:(NSUInteger)index
@@ -102,7 +102,7 @@
 - (void)ensureCacheSizeForIndex:(NSUInteger)index
 {
     while (index >= _cache.count) {
-        [_cache addObject:MPNull];
+        [_cache addObject:[NSNull null]];
     }
 }
 
@@ -112,7 +112,7 @@
 {
     NSMutableArray *placeholders = [[NSMutableArray alloc] initWithCapacity:replacementLength];
     while (placeholders.count < replacementLength) {
-        [placeholders addObject:MPNull];
+        [placeholders addObject:[NSNull null]];
     }
     [_cache replaceObjectsInRange:range
              withObjectsFromArray:placeholders];
@@ -141,6 +141,12 @@
                            usingFont:self.font];
 }
 
+- (CTLineRef)createLineForString:(NSString *)aString emphasize:(BOOL)emphasize
+{
+    return [self createLineForString:aString
+                           usingFont:[NSFont systemFontOfSize:[NSFont systemFontSize]]];
+}
+
 - (CTLineRef)createLineForString:(NSString *)aString
                        usingFont:(NSFont *)font
 {