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/***********************************************************************************
*
* Copyright (c) 2010 Olivier Halligon
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
***********************************************************************************
*
* Created by Olivier Halligon (AliSoftware) on 20 Jul. 2010.
*
* Any comment or suggestion welcome. Please contact me before using this class in
* your projects. Referencing this project in your AboutBox/Credits is appreciated.
*
***********************************************************************************/
#import <UIKit/UIKit.h>
#import <CoreText/CoreText.h>
/////////////////////////////////////////////////////////////////////////////
// MARK: -
// MARK: Utility Functions
/////////////////////////////////////////////////////////////////////////////
CTTextAlignment CTTextAlignmentFromUITextAlignment(UITextAlignment alignment);
CTLineBreakMode CTLineBreakModeFromUILineBreakMode(UILineBreakMode lineBreakMode);
/////////////////////////////////////////////////////////////////////////////
@class OHAttributedLabel;
@protocol OHAttributedLabelDelegate <NSObject>
@optional
-(BOOL)attributedLabel:(OHAttributedLabel*)attributedLabel shouldFollowLink:(NSTextCheckingResult*)linkInfo;
-(UIColor*)colorForLink:(NSTextCheckingResult*)linkInfo underlineStyle:(int32_t*)underlineStyle; //!< Combination of CTUnderlineStyle and CTUnderlineStyleModifiers
@end
#define UITextAlignmentJustify ((UITextAlignment)kCTJustifiedTextAlignment)
/////////////////////////////////////////////////////////////////////////////
@interface OHAttributedLabel : UILabel {
NSMutableAttributedString* _attributedText; //!< Internally mutable, but externally immutable copy access only
CTFrameRef textFrame;
CGRect drawingRect;
NSMutableArray* customLinks;
NSTextCheckingResult* activeLink;
CGPoint touchStartPoint;
}
/* Attributed String accessors */
@property(nonatomic, copy) NSAttributedString* attributedText; //!< Use this instead of the "text" property inherited from UILabel to set and get text
-(void)resetAttributedText; //!< rebuild the attributedString based on UILabel's text/font/color/alignment/... properties
/* Links configuration */
@property(nonatomic, assign) NSTextCheckingTypes automaticallyAddLinksForType; //!< Defaults to NSTextCheckingTypeLink, + NSTextCheckingTypePhoneNumber if "tel:" scheme supported
@property(nonatomic, retain) UIColor* linkColor; //!< Defaults to [UIColor blueColor]. See also OHAttributedLabelDelegate
@property(nonatomic, retain) UIColor* highlightedLinkColor; //[UIColor colorWithWhite:0.2 alpha:0.5]
@property(nonatomic, assign) BOOL underlineLinks; //!< Defaults to YES. See also OHAttributedLabelDelegate
-(void)addCustomLink:(NSURL*)linkUrl inRange:(NSRange)range;
-(void)removeAllCustomLinks;
@property(nonatomic, assign) BOOL onlyCatchTouchesOnLinks; //!< If YES, pointInside will only return YES if the touch is on a link. If NO, pointInside will always return YES (Defaults to NO)
@property(nonatomic, assign) IBOutlet id<OHAttributedLabelDelegate> delegate;
@property(nonatomic, assign) BOOL centerVertically;
@property(nonatomic, assign) BOOL extendBottomToFit; //!< Allows to draw text past the bottom of the view if need. May help in rare cases (like using Emoji)
@end
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