yinmeng-ios/xplan-ios/Main/Monents/Presenter/XPMonentsLayoutConfig.m

//
//  XPMonentsLayoutConfig.m
//  xplan-ios
//
//  Created by 冯硕 on 2022/5/12.
//

#import "XPMonentsLayoutConfig.h"
#import <YYText/YYText.h>
#import "ThemeColor.h"
///Model
#import "MonentsInfoModel.h"
#import "MonentsCommentModel.h"

@implementation XPMonentsLayoutConfig

+ (void)layoutMonentsModel:(MonentsInfoModel *)monents {
	CGFloat rowHeight = kMONENTS_USER_INFO_HEIGHT;
	///用户信息和文字之间的间隙
	rowHeight += kMONENTS_CONTENT_SPACAE_HEIGHT;
	///文字内容的高度
	rowHeight += [self monentsContentHeight:monents];
	///图片的高度
	rowHeight += [self monentsPicHeight:monents];
	///如果没有图片的话 间隙就只有一个
	if (monents.type == MonentsContentType_Picture) {
		rowHeight += (kMONENTS_CONTENT_SPACAE_HEIGHT * 2);
	}else {
		rowHeight += kMONENTS_CONTENT_SPACAE_HEIGHT;
	}
	///话题的高度
	rowHeight += kMONENTS_TEXT_TOPIC_HEIGHT;
	///底部操作栏的高度
	rowHeight += kMONENTS_TOOL_BAR_HEIGHT;
	monents.rowHeight = rowHeight;
}

+ (CGFloat)monentsPicHeight:(MonentsInfoModel *)monents {
	///计算图片的高度
	NSInteger picCount = monents.dynamicResList.count;
	CGFloat picHeight = 0;
	if (picCount == 0) {
		picHeight = 0;
	} else if(picCount == 1) {
		picHeight = kMONENTS_PIC_ONE_WIDTH;
	} else if(picCount == 2) {
		picHeight = (kMONENTS_CONTENT_MAX_WIDTH - kMONENTS_PIC_SPACE) / 2;
	} else {
		if (picCount > 9) {
			picCount = 9;
		}
		CGFloat itemWidth = (kMONENTS_CONTENT_MAX_WIDTH - kMONENTS_PIC_SPACE * 2) / 3;
		NSInteger page = picCount % 3;
		NSInteger line = picCount / 3;
		if (page == 0) {
			picHeight = itemWidth  * line + (line -1)* kMONENTS_PIC_SPACE;
		} else {
			picHeight = itemWidth * (line +1) + line * kMONENTS_PIC_SPACE;
		}
	}
	monents.picHeight = picHeight;
	return picHeight;
}

+ (CGFloat)monentsContentHeight:(MonentsInfoModel *)monents {
	///计算文本的高度
	if (!monents.contentAttribute) {
		NSMutableAttributedString * attribute = [[NSMutableAttributedString alloc] init];
		///置顶
		if (monents.squareTop) {
			UIImageView *imageView = [[UIImageView alloc]init];
			imageView.frame = CGRectMake(0, 0, 36, 14);
			imageView.image = [UIImage imageNamed:@"monents_info_top"];
			NSMutableAttributedString * topAttrString = [NSMutableAttributedString yy_attachmentStringWithContent:imageView contentMode:UIViewContentModeScaleAspectFit attachmentSize:CGSizeMake(imageView.frame.size.width, imageView.frame.size.height) alignToFont:[UIFont systemFontOfSize:15.0] alignment:YYTextVerticalAlignmentCenter];
			[attribute appendAttributedString:topAttrString];
		}
		
		///文本
		NSString * text = monents.content;
		if (text == nil || text.length <= 0) {
			text = @"";
		}
		NSMutableAttributedString *contentAttribute = [[NSMutableAttributedString alloc] initWithString:text attributes:nil];
		contentAttribute.yy_font = [UIFont systemFontOfSize:14];
		NSMutableParagraphStyle *paraStyle = [[NSMutableParagraphStyle alloc] init];
		paraStyle.lineSpacing = 4.0f;//行间距
		// 强制排版(从左到右)
		paraStyle.alignment = NSTextAlignmentLeft;
		paraStyle.baseWritingDirection = NSWritingDirectionLeftToRight;
		contentAttribute.yy_paragraphStyle = paraStyle;
		[attribute appendAttributedString:contentAttribute];
		monents.contentAttribute = attribute;
	}
	
	YYTextContainer *container = [YYTextContainer new];
	container.size = CGSizeMake(kMONENTS_CONTENT_MAX_WIDTH, CGFLOAT_MAX);
	container.maximumNumberOfRows = 0;
	YYTextLayout *layout = [YYTextLayout layoutWithContainer:container text:monents.contentAttribute];
	CGFloat foldHeight = 0;
	if (layout.rowCount > 6) {
		foldHeight = kMONENTS_FOLD_HEIGHT;
		if (monents.isFold) {
			container.maximumNumberOfRows = 6;
		} else {
			container.maximumNumberOfRows = 0;
		}
	}
	YYTextLayout *realLayout = [YYTextLayout layoutWithContainer:container text:monents.contentAttribute];
	monents.contentHeight = realLayout.textBoundingSize.height;
	return realLayout.textBoundingSize.height + foldHeight;
}

///计算评论的高度
+ (CGFloat)commentCommentRowHeight:(MonentsCommentModel * )comment {
	if (comment.commentRowHeight > 0 && !comment.isReloadHeight) {
		return comment.commentRowHeight;
	}
	__block CGFloat rowHeight = 0;
	CGFloat commentTopHeight = 10 + 15 + 10;///10顶部的间隙 15 昵称的高度
	NSString * content = comment.content.length > 0 ? comment.content : @"";
	CGFloat commentHeight = [content boundingRectWithSize:CGSizeMake(KMONENTS_COMMENT_MAX_WIDTH, CGFLOAT_MAX) options:NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingTruncatesLastVisibleLine attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:15]} context:nil].size.height + 5;
	commentHeight = MAX(commentHeight, 15);
	rowHeight += commentTopHeight;
	rowHeight += commentHeight;
	
	///展开剩余的回复
	if (comment.replyInfo.leftCount > 0) {
		rowHeight += 44;
	}
	
	if (comment.replyInfo.replyList.count > 0) {
		rowHeight += 10 * 2;
	} else {
		rowHeight += 10;
	}
	
	///评论的高度
	[comment.replyInfo.replyList enumerateObjectsUsingBlock:^(MonentsReplyModel * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
		if (obj.content.length > 0) {
			[obj createContentAttribute];
			CGFloat replayHeight = 0;
			CGFloat commentTopHeight = 10 + 15 + 10;///10顶部的间隙 15 昵称的高度
			CGFloat commentBottomHeight = 10;
			YYTextContainer *container = [YYTextContainer new];
			container.size = CGSizeMake(KMONENTS_COMMENT_REPLY_MAX_WIDTH, CGFLOAT_MAX);
			container.maximumNumberOfRows = 0;
			YYTextLayout *realLayout = [YYTextLayout layoutWithContainer:container text:obj.contentAttribute];
			CGFloat replyContentHeight = realLayout.textBoundingSize.height;
			replayHeight += commentTopHeight;
			replayHeight += replyContentHeight;
			replayHeight += commentBottomHeight;
			obj.replyRowHeight = replayHeight;
			rowHeight += replayHeight;
		}
	}];
	comment.commentRowHeight = rowHeight;
	return rowHeight;
}

@end