iOS Programming
Multiline UILabel의 수직 정렬 (Top / Center / Bottom)
Joon~~~
2010. 9. 10. 16:37
#import <Foundation/Foundation.h>
typedef enum VerticalAlignment {
VerticalAlignmentTop,
VerticalAlignmentMiddle,
VerticalAlignmentBottom,
VerticalAlignmentFlexible,
} VerticalAlignment;
@interface LWLabel : UILabel {
VerticalAlignment verticalAlignment_;
}
@property (nonatomic, assign) VerticalAlignment verticalAlignment;
- (CGRect)rectForText;
@end
@implementation LWLabel
@synthesize verticalAlignment = verticalAlignment_;
- (id)initWithFrame:(CGRect)frame {
if (self = [super initWithFrame:frame]) {
self.verticalAlignment = VerticalAlignmentMiddle;
}
return self;
}
- (void)setVerticalAlignment:(VerticalAlignment)verticalAlignment {
verticalAlignment_ = verticalAlignment;
[self setNeedsDisplay];
}
- (CGRect)textRectForBounds:(CGRect)bounds limitedToNumberOfLines:(NSInteger)numberOfLines {
CGRect textRect = [super textRectForBounds:bounds limitedToNumberOfLines:numberOfLines];
switch (self.verticalAlignment) {
case VerticalAlignmentTop:
textRect.origin.y = bounds.origin.y;
break;
case VerticalAlignmentBottom:
textRect.origin.y = bounds.origin.y + bounds.size.height - textRect.size.height;
break;
case VerticalAlignmentMiddle:
textRect.origin.y = bounds.origin.y + (bounds.size.height - textRect.size.height) / 2.0;
break;
case VerticalAlignmentFlexible:
textRect.origin.y = bounds.origin.y;
break;
default:
break;
}
return textRect;
}
- (CGRect)rectForText
{
return [self textRectForBounds:self.bounds limitedToNumberOfLines:self.numberOfLines];
}
-(void)drawTextInRect:(CGRect)requestedRect {
CGRect actualRect = [self textRectForBounds:requestedRect limitedToNumberOfLines:self.numberOfLines];
[super drawTextInRect:actualRect];
}
@end