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//
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// UMComMutiText.m
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// UMCommunity
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//
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// Created by umeng on 16/5/4.
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// Copyright © 2016年 Umeng. All rights reserved.
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//
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#import "UMComMutiText.h"
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#import "UMComResouceDefines.h"
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#import <UMComFoundation/UMComKit+Color.h>
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CTFontRef CTFontCreateFromUIFont(UIFont *font)
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{
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CTFontRef ctFont = CTFontCreateWithName((__bridge CFStringRef)font.fontName,
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font.pointSize,
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NULL);
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return ctFont;
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}
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@interface UMComMutiText ()
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@property (nonatomic, copy) void (^configTextCompletion)();
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@property (nonatomic, copy) void (^configTextArrayCompletion)(NSArray *mutiTextArray);
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@end
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@implementation UMComMutiText
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- (instancetype)init
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{
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self = [super init];
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if (self) {
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_text = nil;
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_font = [UIFont systemFontOfSize:13.0f];
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_textColor = [UIColor blackColor];
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_lineSpace = 2.0f;
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_attributedText = nil;
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_pointOffset = CGPointZero;
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//private
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_runs = [NSMutableArray array];
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_framesetterRef = NULL;
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}
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return self;
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}
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- (instancetype)initWithString:(NSString *)string
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{
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NSMutableAttributedString *attString = nil;
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if (string && string.length > 0) {
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attString = [[NSMutableAttributedString alloc] initWithString:string];
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}
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_text = string;
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self = [self initWithAttributedString:attString];
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if (self) {
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}
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return self;
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}
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- (instancetype)initWithAttributedString:(NSMutableAttributedString *)attributedString
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{
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self = [self init];
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if (self) {
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_attributedText = attributedString;
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}
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return self;
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}
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- (void)setFont:(UIFont *)font
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{
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_font = font;
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[self setTextFont:font forRange:NSMakeRange(0,self.attributedText.length)];
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}
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- (void)setTextColor:(UIColor *)textColor
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{
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_textColor = textColor;
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[self setTextColor:textColor forRange:NSMakeRange(0,self.attributedText.length)];
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}
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- (void)setTextFont:(UIFont *)font forRange:(NSRange)range
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{
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NSMutableAttributedString *attString = self.attributedText;
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if ([attString isKindOfClass:[NSMutableAttributedString class]] && attString.length > 0) {
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//设置字体
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CTFontRef fontRef = CTFontCreateFromUIFont(font);//CTFontCreateWithName((__bridge CFStringRef)font.fontName, font.pointSize, NULL);
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[attString addAttribute:(NSString*)kCTFontAttributeName value:(__bridge id)fontRef range:range];
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CFRelease(fontRef);
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}
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}
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- (void)setTextColor:(UIColor *)color forRange:(NSRange)range
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{
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if ([_attributedText isKindOfClass:[NSMutableAttributedString class]] && _attributedText.length > 0 && color) {
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//设置颜色
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[_attributedText addAttribute:(NSString*)kCTForegroundColorAttributeName value:color range:NSMakeRange(0,_attributedText.length)];
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}
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}
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- (void)setLineSpace:(CGFloat)lineSpace
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{
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_lineSpace = lineSpace;
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}
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- (void)setLineBreakMode:(NSLineBreakMode)lineBreakMode
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{
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_lineBreakMode = lineBreakMode;
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[self setLineBreakMode:lineBreakMode forRange:NSMakeRange(0, [_attributedText length])];
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}
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- (void)setLineBreakMode:(NSLineBreakMode)lineBreakMode forRange:(NSRange)range
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{
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}
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+ (UMComMutiText *)mutiTextWithSize:(CGSize)size
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font:(UIFont *)font
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string:(NSString *)string
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lineSpace:(CGFloat)lineSpace
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checkWords:(NSArray *)checkWords
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{
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UMComMutiText *mutiText = [[UMComMutiText alloc]initWithString:string];
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[mutiText setMutiTextWithSize:size font:font string:string lineSpace:lineSpace checkWords:checkWords];
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mutiText.text = string;
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return mutiText;
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}
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+ (UMComMutiText *)mutiTextWithSize:(CGSize)size
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font:(UIFont *)font
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string:(NSString *)string
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lineSpace:(CGFloat)lineSpace
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checkWords:(NSArray *)checkWords
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textColor:(UIColor *)textColor
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{
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UMComMutiText *mutiText = [[UMComMutiText alloc]initWithString:string];
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mutiText.textColor = textColor;
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[mutiText setMutiTextWithSize:size font:font string:string lineSpace:lineSpace checkWords:checkWords];
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mutiText.text = string;
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return mutiText;
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}
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+ (UMComMutiText *)mutiTextWithSize:(CGSize)size
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font:(UIFont *)font
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string:(NSString *)string
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lineSpace:(CGFloat)lineSpace
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checkWords:(NSArray *)checkWords
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textColor:(UIColor *)textColor
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highLightColor:(UIColor *)highLightColor
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{
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UMComMutiText *mutiText = [[UMComMutiText alloc]initWithString:string];
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mutiText.textHighLightColor = highLightColor;
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mutiText.textColor = textColor;
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[mutiText setMutiTextWithSize:size font:font string:string lineSpace:lineSpace checkWords:checkWords];
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mutiText.text = string;
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return mutiText;
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}
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- (void)setMutiTextWithSize:(CGSize)size
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font:(UIFont *)font
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string:(NSString *)string
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lineSpace:(CGFloat)lineSpace
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checkWords:(NSArray *)checkWords
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{
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self.font = font;
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self.lineBreakMode = NSLineBreakByCharWrapping;
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self.lineSpace = lineSpace;
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[self reloadTextDataforRange:NSMakeRange(0, _attributedText.length)];
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[self setHightLightAttributedTextWithSize:size checkWords:checkWords];
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}
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- (void)reloadTextDataforRange:(NSRange)range
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{
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if ([_attributedText isKindOfClass:[NSMutableAttributedString class]] && _attributedText.length > 0) {
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CTLineBreakMode lineBreak = kCTLineBreakByWordWrapping;
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switch (_lineBreakMode) {
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case NSLineBreakByCharWrapping:
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lineBreak = kCTLineBreakByCharWrapping;
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break;
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case NSLineBreakByClipping:
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lineBreak = kCTLineBreakByClipping;
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break;
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case NSLineBreakByTruncatingHead:
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lineBreak = kCTLineBreakByTruncatingHead;
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break;
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case NSLineBreakByTruncatingTail:
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lineBreak = kCTLineBreakByTruncatingTail;
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break;
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case NSLineBreakByTruncatingMiddle:
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lineBreak = kCTLineBreakByTruncatingMiddle;
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break;
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default:
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lineBreak = kCTLineBreakByWordWrapping;
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break;
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}
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CTParagraphStyleSetting settings[] = {
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{kCTParagraphStyleSpecifierLineSpacing,sizeof(_lineSpace),&_lineSpace}, //行间距
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{ kCTParagraphStyleSpecifierLineSpacingAdjustment, sizeof(CGFloat), &_lineSpace },//调整行间距
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{ kCTParagraphStyleSpecifierMaximumLineSpacing, sizeof(CGFloat), &_lineSpace },//最大行间距
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{ kCTParagraphStyleSpecifierMinimumLineSpacing, sizeof(CGFloat), &_lineSpace },//最小行间距
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{kCTParagraphStyleSpecifierLineBreakMode,sizeof(lineBreak),&lineBreak},//换行模式
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};
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CTParagraphStyleRef style = CTParagraphStyleCreate(settings, sizeof(settings)/sizeof(settings[0]));
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NSMutableDictionary *attributes = [NSMutableDictionary dictionaryWithObject:(__bridge id)style forKey:(id)kCTParagraphStyleAttributeName ];
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CFRelease(style);
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[_attributedText addAttributes:attributes range:range];
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}
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}
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- (void)setHightLightAttributedTextWithSize:(CGSize)size checkWords:(NSArray *)checkWords
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{
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NSMutableAttributedString *attString = self.attributedText;
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if (!attString || attString.length == 0) {
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return;
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}
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CFIndex lineIndex = 0;
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int lineCount = 0;
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NSDictionary *dic = [attString attributesAtIndex:0 effectiveRange:nil];
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CTParagraphStyleRef paragraphStyle = (__bridge CTParagraphStyleRef)[dic objectForKey:(id)kCTParagraphStyleAttributeName];
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CGFloat linespace = 0;
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CTParagraphStyleGetValueForSpecifier(paragraphStyle, kCTParagraphStyleSpecifierLineSpacing, sizeof(linespace), &linespace);
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CGMutablePathRef pathRef = CGPathCreateMutable();
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CGPathAddRect(pathRef, NULL, CGRectMake(0, 0, size.width, size.height));
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UIColor *blueColor = UMComColorWithHexString(@"#507DAF");
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if (!self.textHighLightColor) {
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self.textHighLightColor = blueColor;
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}
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NSArray *runs = [[self class] createTextRunsWithAttString:attString font:_font highLightColor:self.textHighLightColor checkWords:checkWords];
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self.runs = runs;
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CFAttributedStringRef attStringRef = (__bridge CFAttributedStringRef)attString;
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CTFramesetterRef setterRef = CTFramesetterCreateWithAttributedString(attStringRef);
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self.framesetterRef = (__bridge_transfer id)(CFRetain(setterRef));
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CTFrameRef frameRef = CTFramesetterCreateFrame(setterRef, CFRangeMake(0, 0), pathRef, nil);
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CGSize textSize = CTFramesetterSuggestFrameSizeWithConstraints(setterRef, CFRangeMake(0, (CFIndex)[attString length]), NULL, size, NULL);
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CFArrayRef lines = CTFrameGetLines(frameRef);
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lineIndex = CFArrayGetCount(lines);
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lineCount = (int)lineIndex;
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self.lineNumbers = lineCount;
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CTLineRef lineRef;
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if (lineCount > 0) {
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lineRef= CFArrayGetValueAtIndex(lines, lineCount-1);
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CGRect rect = CTLineGetBoundsWithOptions(lineRef,kCTLineBoundsExcludeTypographicShifts);
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if (lineCount == 1) {
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textSize.width = rect.size.width+2;//宽度加两个像素以纠偏
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}else{
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textSize.width = size.width;
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}
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textSize.height += linespace;//高度加一行高度以纠偏
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}
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_textSize = textSize;
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_attributedText = attString;
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CGPathRelease(pathRef);
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CFRelease(setterRef);
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CFRelease(frameRef);
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}
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+ (NSArray *)createTextRunsWithAttString:(NSMutableAttributedString *)attString
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font:(UIFont *)font
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highLightColor:(UIColor *)color
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checkWords:(NSArray *)checkWords
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{
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NSMutableArray *array = [[NSMutableArray alloc] init];
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NSArray *subRunArray = [UMComMutiTextRunURL runsWithAttributedString:attString font:font textColor:color];
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if (subRunArray.count > 0) {
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[array addObjectsFromArray:subRunArray];
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}
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subRunArray = [UMComMutiTextRunTopic runsWithAttributedString:attString font:font textColor:color checkWords:checkWords];
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if (subRunArray.count > 0) {
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[array addObjectsFromArray:subRunArray];
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}
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subRunArray = [UMComMutiTextRunClickUser runsWithAttributedString:attString font:font textColor:color checkWords:checkWords];
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if (subRunArray.count > 0) {
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[array addObjectsFromArray:subRunArray];
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}
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return array;
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}
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@end
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