UILabel+Additions.m

//
//  UILabel+Additions.m
//
//  Created by Wess Cope on 6/21/11.
//  Copyright 2012. All rights reserved.
//

#import "UILabel+Additions.h"


@implementation UILabel(Additions)
- (void)alignTop 
{
    CGSize fontSize = [self.text sizeWithFont:self.font];
    double finalHeight = fontSize.height * self.numberOfLines;
    double finalWidth = self.frame.size.width;    //expected width of label
    CGSize theStringSize = [self.text sizeWithFont:self.font constrainedToSize:CGSizeMake(finalWidth, finalHeight) lineBreakMode:self.lineBreakMode];
    int newLinesToPad = (finalHeight  - theStringSize.height) / fontSize.height;
    for(int i=0; i<newLinesToPad; i++)
        self.text = [self.text stringByAppendingString:@"\n "];
}

- (void)alignBottom 
{
    CGSize fontSize = [self.text sizeWithFont:self.font];
    double finalHeight = fontSize.height * self.numberOfLines;
    double finalWidth = self.frame.size.width;    //expected width of label
    CGSize theStringSize = [self.text sizeWithFont:self.font constrainedToSize:CGSizeMake(finalWidth, finalHeight) lineBreakMode:self.lineBreakMode];
    int newLinesToPad = (finalHeight  - theStringSize.height) / fontSize.height;
    for(int i=0; i<newLinesToPad; i++)
        self.text = [NSString stringWithFormat:@" \n%@",self.text];
}

- (void)sizeToFitFixedWidth:(NSInteger)fixedWidth
{
    self.frame = CGRectMake(self.frame.origin.x, self.frame.origin.y, fixedWidth, 0);
    self.lineBreakMode = UILineBreakModeWordWrap;
    self.numberOfLines = 0;
    [self sizeToFit];
}

- (void)adjustHeightForString:(NSString *)str
{
    CGSize maximumLabelSize = CGSizeMake(296,9999);
    
    CGSize expectedLabelSize = [str sizeWithFont:self.font 
                                      constrainedToSize:maximumLabelSize 
                                          lineBreakMode:self.lineBreakMode]; 
    
    CGRect newFrame = self.frame;
    newFrame.size.height = expectedLabelSize.height;
    self.frame = newFrame;
}
@end