gistfile1.m

- (void)drawRect:(CGRect)rect;
{
    CGAffineTransform flipVertical = CGAffineTransformMake(1, 0, 0, -1, 0, CGRectGetHeight(self.bounds));

    CTFramesetterRef ref = CTFramesetterCreateWithAttributedString((CFAttributedStringRef)self.attributedString);
    UIBezierPath *path = [UIBezierPath bezierPathWithRect:self.bounds];
    CTFrameRef ctFrame = CTFramesetterCreateFrame(ref, CFRangeMake(0, 0), [path CGPath], NULL);
    
    CGContextRef ctx = UIGraphicsGetCurrentContext();
    CGContextConcatCTM(ctx, flipVertical);
    
    //This one works fine
    //CTFrameDraw(ctFrame, ctx);
    
    NSMutableArray *lines = [NSMutableArray arrayWithArray:(id)(id)CTFrameGetLines(ctFrame)];
    CGPoint * origins = malloc(sizeof(CGPoint) * [lines count]);
    
    //Line truncation code
    CTLineRef lastLine = (CTLineRef)[lines lastObject];
    CFStringRef str = CFSTR("\u2026");
    CFAttributedStringRef truncationString = (CFAttributedStringRef)[[[NSAttributedString alloc] initWithString:(id)str] autorelease];
    CTLineRef truncationToken = CTLineCreateWithAttributedString(truncationString); 
    
    NSRange lastLineRange = NSMakeRange(CTLineGetStringRange(lastLine).location, 0); 
    lastLineRange.length = [self.attributedString length] - lastLineRange.location; 
    CFAttributedStringRef longString = (CFAttributedStringRef)[self.attributedString attributedSubstringFromRange:lastLineRange];
    CTLineRef longLine = CTLineCreateWithAttributedString(longString);
    
    
    CTLineRef truncated = CTLineCreateTruncatedLine(longLine, CGRectGetWidth(self.bounds), kCTLineTruncationEnd, truncationToken);
    CFRelease(truncationToken);
    if (truncated)
    {
        [lines replaceObjectAtIndex:[lines count]-1 withObject:(id)truncated];
        CFRelease(truncated);
    }
    
#warning Comment out this line to fix the truncation problem
    //!!!!!!!!!!!!!!
    CFRelease(longLine);
    //!!!!!!!!!!!!!!!
    CTFrameGetLineOrigins(ctFrame, CFRangeMake(0, 0), origins);
    for (int i = 0; i < [lines count]; ++i)
    {
        CGPoint origin = origins[i];
        CGContextSetTextPosition(ctx, origin.x ,origin.y);
        CTLineRef line = (CTLineRef)[lines objectAtIndex:i];

        //This works fine
        //CTLineDraw(line, ctx);
        
        NSArray *runs = (id)CTLineGetGlyphRuns(line);
        for (id t in runs)
        {
            CTRunRef run = (CTRunRef)t;
            CTRunDraw(run, ctx, CFRangeMake(0, 0));
        }

    }
    
    free(origins);
    
    CFRelease(ctFrame);
    CFRelease(ref);
}